Academic literature on the topic 'Sand screen'
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Journal articles on the topic "Sand screen"
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Feng, Yuqing, Xavier Choi, Bailin Wu, Qinggong Wang, Chong Yau Wong, Seng Lim, Bahrom Madon, et al. "A numerical assessment of the effect of particle size distribution and operation parameters on sand retention over sand screens." APPEA Journal 55, no. 2 (2015): 476. http://dx.doi.org/10.1071/aj14111.
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Sand screens are often installed in sanding prone wellbores to control sand production. A selection of optimal sand screen apertures is required to minimise sand production and maximise fluid production. This has been accomplished historically on empirical correlations, rules of thumb and laboratory sand retention experiments. These methodologies have a number of limitations that can lead to different screen types and sub-optimal screen apertures to be selected. Using discrete element models (DEMs), many design/operating parameters similar to a specific wellbore condition can be simulated and tested in parallel. Most importantly, the detailed particle scale information helps to give a detailed understanding of the underlying mechanisms controlling the sand retention process. This extended abstract presents an investigation of the sand production problem from wire wrapped screens and slotted liners through the use of a DEM for the solid flow with fluid flow coupling using computational fluid dynamics (CFD). Information about particle sizes and distributions incorporated in the DEM model are based on measurement data from reservoir sands. The focus is on the effect of particle size distributions, particle concentration, and the slot width on sand retention across a slotted sand screen.
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Nguyen, Lam Quoc Cuong, and Mau Dang Nguyen. "Evaluating the screen performance in sand control design by laboratory sand retention test." Petrovietnam Journal 11 (December 16, 2022): 43–49. http://dx.doi.org/10.47800/pvj.2022.11-04.
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To produce oil and gas from unconsolidated sandstone reservoirs, sand screens are necessary to control sand flowing from the formation into the wells, causing well pluggings. In open hole completion, stand-alone sand screen is an essential component to prevent sand production, thus, selection of suitable sand screens is critical to minimize sand production and optimize the well’s production life.
Nowadays, premium screens with steel meshes make the openings of the screen slots complex in shape, resulting in a very different effect of sand retention compared to the traditional screens. The sand retention test is considered a standard and must be conducted to select screen opening and size, which decides the sand prevention capacity of the screen.
The paper presents the factors affecting the results of laboratory sand retention tests and proposes solution in the direction of considering the data trend rather than relying completely on the output results. The paper also brings about the evaluation method through the change the screen’s permeability to have better qualitative results compared to the traditional methods.
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Ahad, Nur Aqilah, Morteza Jami, and Stephen Tyson. "A review of experimental studies on sand screen selection for unconsolidated sandstone reservoirs." Journal of Petroleum Exploration and Production Technology 10, no. 4 (January 2, 2020): 1675–88. http://dx.doi.org/10.1007/s13202-019-00826-y.
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AbstractSand production is a problem that affects hydrocarbon production from unconsolidated sandstone reservoirs. Several factors, such as the strength of the reservoir, its lithification and cementation and reduction in pore pressure, may cause sand to be separated from the rock and transported by hydrocarbons to the well. Producing sand commonly causes erosion and corrosion of downhole and surface equipment, leading to production interruptions and sometimes forces operators to shut-in wells. Several different methods of sand control are available to reduce the impact of sand production. The reviewed papers suggest that the most suitable methods for unconsolidated sandstone reservoirs are stand-alone screens and gravel packs. Because of the cost and complexity of gravel packs, stand-alone screens are usually the first choice. These screens have different geometries, and selection of the most suitable screen depends on the particle size distribution of the grains in the formation and other reservoir and production parameters. A screen retention test, run in a laboratory with screen samples and typical sands, is often used to ensure that the screen is suitable for the reservoir. This paper reviews the main causes of sand production, the properties of unconsolidated sandstones that predispose reservoirs to sand production problems and the selection criteria for the most suitable mitigation method. The process of selecting a screen using experimental screen retention tests is reviewed, and the limitations of these tests are also discussed. Some numerical simulations of experimental tests are also reviewed, since this represents a very cost-effective alternative to laboratory experiments.
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Zhang, Yiqun, Wei Wang, Panpan Zhang, Gensheng Li, Shouceng Tian, Jingsheng Lu, and Bo Zhang. "A Solution to Sand Production from Natural Gas Hydrate Deposits with Radial Wells: Combined Gravel Packing and Sand Screen." Journal of Marine Science and Engineering 10, no. 1 (January 6, 2022): 71. http://dx.doi.org/10.3390/jmse10010071.
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Sand production is one of the main problems restricting the safe, efficient and sustainable exploitation of marine natural gas hydrate. To explore the sand-control effects of gravel packing, experiments that simulate hydrate extraction in the water-rich environment were conducted with designed hydrate synthesis and exploitation devices. Three sand control completion methods, including 120 mesh sand screen, 400 mesh sand screen, 120 mesh sand screen combined with gravel packing, are adopted. Sand and gas production rates were compared under different well types and sand control completion methods. Results show that the gas production modes of radial wells and vertical wells are almost the same at the same time due to the small experimental scale and high permeability. The sand production of the vertical well with gravel packing combined with a sand-control screen is 50% lower than that of the vertical well with sand-control screens only. Radial well with gravel packing combined with sand-control screens produced 87% less sand than screen mesh alone. The cumulative gas production and recovery rates of a radial well with the composite sand control method are better than those without gravel packing in the same development time.
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Bakulin, Andrey, Dmitry Alexandrov, Alexander Sidorov, and Boris Kashtan. "Acoustic waves in sand-screened deepwater completions: Comparison of experiments and modeling." GEOPHYSICS 74, no. 1 (January 2009): E45—E56. http://dx.doi.org/10.1190/1.3002769.
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Real-time completion monitoring with acoustic waves has been proposed recently as a method to monitor permeability changes along completions. Typical deepwater completions contain additional layers of sand screen, gravel sand, and perforated casing, which make them quite different from a fluid-filled open borehole. Monitoring changes in flow properties across the completion is crucial because impairment of permeability in any of these layers could cause reduced well productivity. In contrast to an open-hole model, a sand-screened completion supports two tube waves related to an inner fluid column and a gravel suspension in the annulus. To study effects of screen and sand permeability on tube-wave signatures, we construct simple numerical models of various completion scenarios using poroelastic descriptions of screen and sand. Models generally predict that a fast tube wave does not attenuate at either low or high permeability, but experiences resonant attenuation at intermediate frequencies. In contrast, a slow tube wave attenuates completely above a certain permeability value. Models provide a qualitative and sometimes a semiquantitative description for signatures of the fast tube wave. However, they are unable to explain why the slow tube wave is observed in experiments with high permeabilities of sand and screen. We speculate that a better model of complex sand screens is required to match experimental data.
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Bravo, Buchón-Moragues, Redondo, Ferri, and Sánchez-Pérez. "Integrated Photogrammetric-Acoustic Technique for Qualitative Analysis of the Performance of Acoustic Screens in Sandy Soils." Sensors 19, no. 22 (November 8, 2019): 4881. http://dx.doi.org/10.3390/s19224881.
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In this work, we present an integrated photogrammetric-acoustic technique that, together with the construction of a scaled wind tunnel, allows us to experimentally analyze the permeability behavior of a new type of acoustic screen based on a material called sonic crystal. Acoustic screens are devices used to reduce noise, mostly due to communication infrastructures, in its transmission phase from the source to the receiver. The main constructive difference between these new screens and the classic ones is that the first ones are formed by arrays of acoustic scatterers while the second ones are formed by continuous walls. This implies that, due to their geometry, screens based on sonic crystals are permeable to wind and water, unlike the classic ones. This fact may allow the use of these new screens in sandy soils, where sand would pass through the screen, avoiding the formation of sand dunes that are formed in classic screens and drastically reducing their acoustic performance. In this work, the movement of the sand and the resulting acoustic attenuation in these new screens are analyzed qualitatively, comparing the results with those obtained with the classic ones, and obtaining interesting results from the acoustic point of view.
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Shaffee, Siti Nur, Paul F. Luckham, Omar K. Matar, Aditya Karnik, and Mohd Shahrul Zamberi. "Numerical Investigation of Sand-Screen Performance in the Presence of Adhesive Effects for Enhanced Sand Control." SPE Journal 24, no. 05 (June 3, 2019): 2195–208. http://dx.doi.org/10.2118/195686-pa.
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Summary In many industrial processes, an effective particle–filtration system is essential for removing unwanted solids. The oil and gas industry has explored various technologies to control and manage excessive sand production, such as by installing sand screens or injecting consolidation chemicals in sand–prone wells as part of sand–management practices. However, for an unconsolidated sandstone formation, the selection and design of effective sand control remains a challenge. In recent years, the use of a computational technique known as the discrete–element method (DEM) has been explored to gain insight into the various parameters affecting sand–screen–retention behavior and the optimization of various types of sand screens (Mondal et al. 2011, 2012, 2016; Feng et al. 2012; Wu et al. 2016). In this paper, we investigate the effectiveness of particle filtration using a fully coupled computational–fluid–dynamics (CFD)/DEM approach featuring polydispersed, adhesive solid particles. We found that an increase in particle adhesion reduces the amount of solid in the liquid filtrate that passes through the opening of a wire–wrapped screen, and that a solid pack of particle agglomerates is formed over the screen with time. We also determined that increasing particle adhesion gives rise to a decrease in packing density and a diminished pressure drop across the solid pack covering the screen. This finding is further supported by a Voronoi tessellation analysis, which reveals an increase in porosity of the solid pack with elevated particle adhesion. The results of this study demonstrate that increasing the level of particle agglomeration, such as by using an adhesion–promoting chemical additive, has beneficial effects on particle filtration. An important application of these findings is the design and optimization of sand–control processes for a hydrocarbon well with excessive sand production, which is a major challenge in the oil and gas industry.
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Rodríguez, C. D., and J. S. De Plaza. "Flow hydraulic simulation through two sand traps, using Ansys fluent." Journal of Physics: Conference Series 2118, no. 1 (November 1, 2021): 012002. http://dx.doi.org/10.1088/1742-6596/2118/1/012002.
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Abstract Computational fluid dynamics is a tool that allows to simulate and observe the behavior of any fluid, based on a physical, hydraulic, and hydrodynamic analysis. This research analyses the behavior of the flow in a sand trap, which is a structure used to remove sand particles with a minimum size of 0.10 mm, prior to treatment in a drinking-water plant. The objective of this study is to determine the highest efficiency between two sand traps, one with a double smooth screen and the other with a double perforated screen (with diffusers), based on the simulation and analysis behavior of the flow inside each sand trap. The methodology used includes the traditional design of each unit based on Hazen’s model and Stokes viscosity law, to later carry out the numerical model simulation from Ansys Fluent (pre-processing, processing, and post-processing). The result shows that perforated double screen sand trap generates a removal efficiency of 78%, while the smooth double screen 28%. In addition, other four units of interleaved screens are proposed, in these cases efficiencies of up to 50% are observed and it is shown that it is necessary to implement at least two perforated screens (with diffusers) to guarantee an efficiency greater than 70%. Hydraulic simulation has a broad impact on infrastructure works and consulting.
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Razak, Nurul Nadhirah Abd, Said Jadid Abdulkadir, Mohd Azuwan Maoinser, Siti Nur Amira Shaffee, and Mohammed Gamal Ragab. "One-Dimensional Convolutional Neural Network with Adaptive Moment Estimation for Modelling of the Sand Retention Test." Applied Sciences 11, no. 9 (April 22, 2021): 3802. http://dx.doi.org/10.3390/app11093802.
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Stand-alone screens (SASs) are active sand control methods where compatible screens and slot sizes are selected through the sand retention test (SRT) to filter an unacceptable amount of sand produced from oil and gas wells. SRTs have been modelled in the laboratory using computer simulation to replicate experimental conditions and ensure that the selected screens are suitable for selected reservoirs. However, the SRT experimental setups and result analyses are not standardized. A few changes made to the experimental setup can cause a huge variation in results, leading to different plugging performance and sand retention analysis. Besides, conducting many laboratory experiments is expensive and time-consuming. Since the application of CNN in the petroleum industry attained promising results for both classification and regression problems, this method is proposed on SRT to reduce the time, cost, and effort to run the laboratory test by predicting the plugging performance and sand production. The application of deep learning has yet to be imposed in SRT. Therefore, in this study, a deep learning model using a one-dimensional convolutional neural network (1D-CNN) with adaptive moment estimation is developed to model the SRT with the aim of classifying plugging sign (screen plug, the screen does not plug) as well as to predict sand production and retained permeability using a varying sand distribution, SAS, screen slot size, and sand concentration as inputs. The performance of the proposed 1D-CNN model for the slurry test shows that the prediction of retained permeability and the classification of plugging sign achieved robust accuracy with more than a 90% value of R2, while the prediction of sand production achieved 77% accuracy. In addition, the model for the sand pack test achieved 84% accuracy in predicting sand production. For comparative model performance, gradient boosting (GB), K-nearest neighbor (KNN), random forest (RF), and support vector machine (SVM) were also modelled on the same datasets. The results showed that the proposed 1D-CNN model outperforms the other four machine learning models for both SRT tests in terms of prediction accuracy.
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Sun, Qing Zhou, Jing Guang Yan, Pu Qing Zhang, Zhong Kui Zhao, and Hang Du. "Research on Performance of Foundry Sand under the Effect of Chemical Binder." Applied Mechanics and Materials 597 (July 2014): 262–65. http://dx.doi.org/10.4028/www.scientific.net/amm.597.262.
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This paper makes an experiental research on the performance of foundry sand under the effect of chemical binder. It discoveries the raw sand with different origin will have different properties even though they have the same particle size. The properties of their molding sand are also obviously different. For the raw sand that in the same particle size with similar acid demand value and four-screen distribution, the better grain shape will earn them a higher molding sand strength even though they have higher clay content. Under the effect of liquid binder, compared to the molding sand mixed from the sand of three-screen distribution, the molding sand mixed from those of four-screen distribution sand with other properties similar will have a higher tensile strength While under the effect of solid phenolic resin adhesive, the three-screen sand with good grain shape will have a high sand strength.
Dissertations / Theses on the topic "Sand screen"
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Jokinen, H. (Hanna). "Screening and cleaning of pulp—a study to the parameters affecting separation." Doctoral thesis, University of Oulu, 2007. http://urn.fi/urn:isbn:9789514284526.
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Abstract
The objective of this thesis was to determine the effects of design, operational and furnish quality parameters on pressure screen and hydrocyclone performance.
The general contradictory interrelationships between capacity and selectivity in pressure screening and cleaning are commonly recognized, but deep understanding of the effects of design, operational and furnish quality parameters on the state of operation is missing.
As separation selectivity is closely dependent on thickening and pulp passage, an operation curve for separation was applied and its application further developed to examine the parameters affecting pressure screen and hydrocyclone separation. New information was found on the geometry of the screen plate, furnish quality parameters in pressure screen fibre fractionation, and the hydrocyclone separation of fibres, sand and gases.
The capacity increases achieved by changes in the wire screen plate geometry were found to be achieved at the cost of separation selectivity in probability screening. The capacity of the screen plate was affected by the flow on the screen plate and through it. The hydraulic resistance both in the forward and reverse flow directions was found to be of great importance for the capacity of the screen plate. Previously unreported knowledge was found regarding the effects of wire width, height and shape.
Pressure screening capacity was found to decrease with increasing fibre length, fibre network strength and flocculation. Pressure screen fibre fractionation selectivity was increased by broadening of the fibre length distribution of the feed furnish.
The furnish properties also affected the separation selectivity of fibres, sand and gases in the hydrocyclone. An increase in fibre network strength reduced the separation selectivity of the hydrocyclone separation of fibres and sand. Any increase in the specific surface area, and especially in the amount of fines, was found to make gas removal more challenging. It was concluded that a broader range of the specific surface distribution can increase the selectivity of fibre fractionation in the hydrocyclone.
Knowledge of the general effects of design, operational and furnish quality parameters on the performance of pressure screen and hydrocyclone separation was deepened as a result of this work, which provides a framework for studying these effects further in pursuit of the general objective of maximizing capacity and selectivity while minimizing energy and investment costs.
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El, Romh Mohamad Ali. "Oxydes sans plomb pour la détection de gaz : OSPÉGAZ." Thesis, Littoral, 2016. http://www.theses.fr/2016DUNK0448/document.
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La détection de gaz, qui utilise aujourd'hui principalement des capteurs optiques, des capteurs électrochimiques à base de plomb et des capteurs catalytiques est un marché très porteur (estimé à 3 milliards d'euros) et doté d'une forte croissance (10% par an). La nécessité de développer de nouveaux systèmes d'instrumentation dédiés à la surveillance de la qualité de l'air intérieur et à la détection de substances dangereuses implique l'étude et le développement de nouveaux capteurs élaborés à partir de produits compatibles avec les enjeux environnementaux (RoHs, REACH), et économiques (matériaux à faible coût, techniques de réalisation fiables, durée de vie élevée). Le projet ANR OSPÉGAZ (Oxydes sans plomb pour la détection de gaz) vise à développer des systèmes d'instrumentations intégrés innovants dédiés à la caractérisation des différentes expositions environnementales en lien notamment avec les actions recommandées dans le cadre du PNSE2 pour les impacts sanitaires avérés. Le travail de thèse présenté dans ce manuscrit fait partie du projet OSPÉGAZ. L'objectif du travail a été, d'une part, de mettre au point un nouveau procédé d'élaboration d'encre au sein du laboratoire UDSMM pour l'élaboration et la caractérisation de films épais poreux, et d'autre part, de réaliser des capteurs de gaz à base de ces films. Nous avons choisi d'utiliser le matériau BaTiO₃, bien connu de la littérature, comme matériau de départ afin de mettre au point le procédé d'élaboration de couches épaisses. Par la suite, nous avons choisi le BaSrTiFeO₃ comme matériau sensible au gaz, et nous avons étudié deux compositions correspondant à deux taux de fer : Ba₀.₈₅Sr₀.₁₅Ti₀.₉Fe₀.₁O₃ (BSTF 10%) et Ba₀.₈₅Sr₀.₁₅Ti₀.₉₈Fe₀.₀₂O₃ (BSTF 2%). Ces matériaux ont été caractérisés dans une large gamme de fréquence (100 Hz à 1 MHz) et de température (25°C à 500°C). Les propriétés diélectriques en fonction de la fréquence et de la température ont été étudiées sur deux structures différentes d'électrodes : capacité parallèle (MIM) et capacité interdigitée (CID). Enfin, des démonstrateurs de capteurs de gas basés sur le principe des capteurs semi-conducteurs, ont été réalisés à partir de films épais poreux (BT, BST, BSFT 10% et 2%). Ces démonstrateurs ont été testés dans les locaux de la société SIMTRONICS sous différents gaz comme le monoxyde de carbone CO (200ppm), le sulfure d'hydrogène H₂S (50ppm) et le dioxyde de soufre SO₂ (20ppm) à 400°C et 450°C. Sous H₂S (50ppm), ils ont montré une plus grande sensibilité relative du BSTF (10%) (55.4%) par rapport au BSTF (2%) (48%) à 450°C. La bonne sensibilité relative et la réponse dynamique très intéressante montrent que le matériau BSTF dispose d'un potentiel très intéressant pour la détection de gaz. L'optimisation de la géométrie des capteurs, du taux de fer et de la température de fonctionnement devrait nous permettre d'améliorer les performances de nos démonstrateursToday gas detection, which now mainly uses optical sensors, electrochemical sensors based on lead, and catalytic sensors, is a very promising market (estimated at 3 billion euros) with a strong growth (10% per year). The need for new instrumentation systems dedicated to the monitoring of the air quality and to the detection of hazardous substances, requires the study and development of new sensors compatible with the European environmental standards : Restriction of the use of Hazardous Substances (RoHS) ; Registration, Evaluation and Authorization of Chemicals (REACh). The OSPÉGAZ project aims to develop innovative integrated instrumentations systems for the characterization of different environmental exposures linked to the actions recommended by the PNSE2 for proven health impacts. Our research project aims to develop innovating and cost-effective gas sensors containing lead-free oxides and dedicated to the detection of flammable gases and protection against toxic risks. The works of the thesis presented in this manuscript is a part of this project. The objectives were, firstly, to develop a new process for ink preparation in UDSMM laboratory, for the elaboration, electrical and physicochemical characterizations, of thick porous film, and secondly to make gas sensors based on these films. We chose to use the BaTiO3 (well-known material in literature) material as a first material in order to develop the process of thick film elaboration. After that, we chose the BaSrTiFeO₃ as gas-sensitive material, and we studied two compositions of Ba₁₋ ₓ Sr ₓ Ti₁₋yFeyO₃ with two different concentrations or iron : Ba₀.₈₅Sr₀.₁₅Ti₀.₉Fe₀.₁O₃ (BSTF 10%) and Ba₀.₈₅Sr₀.₁₅Ti₀.₉₈Fe₀.₀₂O₃ (BSTF 2%). Electrical characterizations were made in a wide range of frequency (100 HZ to 1 MHz) and temperature (25° C to 500° C). The dielectric properties as a function of temperature and frequency were studied using two different structures of capacitance : metal-insulator-metal (MIM) and interdigital electrodes (CID). Finally we have developed semi-conductor gas sensors based on BT, BST and BSTF (10% ; 2%) thick films. All our sensors were tested under different gases such as carbon monoxide CO (200ppm), hydrogen sulphide H₂S (50ppm) and sulfur dioxide SO₂ (20ppm), at various temperature, in the laboratory of SIMTRONICS SAS. We have measured the greatest relative sensitivity under H₂S (50ppm) gas ; 55.4% and 48% respectively for BSTF (10%) and BSTF (2%), at 450°C. Good relative sensitivity and very interesting dynamic responsesof BSTF show that the material has a great potential for the detection of gas. The optimization of the sensor geometry, iron rate and operating temperature should allow us to improve the performance of our demonstrators
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Tsuha, Cristina de Hollanda Cavalcanti. "Modelo teórico para controle da capacidade de carga à tração de estacas metálicas helicoidais em solo arenoso." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/18/18132/tde-06052008-151518/.
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O monitoramento em campo de fundações em estacas metálicas helicoidais é baseado em correlações empíricas entre a capacidade de carga à tração e o torque medido durante a instalação. Nesta pesquisa é proposto um modelo teórico da relação entre o torque de instalação e a capacidade de carga à tração deste tipo de estaca em areias para ser utilizado como procedimento de controle durante a execução deste tipo de fundação. Para validar esta relação teórica e para avaliar o desempenho desta fundação em solos arenosos, foi realizado um programa experimental dividido em dois grupos: ensaios de campo e ensaios de laboratório. Em campo foram realizadas provas de carga à tração na Escola de Engenharia de São Carlos (EESC) e em Contagem (Minas Gerais). Os ensaios de laboratório foram divididos em três grupos. O primeiro corresponde aos ensaios de modelagem física em centrífuga realizados no Laboratoire Central des Ponts et Chaussées (LCPC) em Nantes, França. O segundo engloba ensaios de cisalhamento direto de interface entre o aço da hélice da estaca e diferentes areias, parte executada no LCPC e parte na EESC. O terceiro grupo refere-se a ensaios de torção de tubos de estacas metálicas helicoidais efetuados na EESC. A partir dos resultados dos ensaios, o modelo teórico proposto nesta tese foi verificado e mostrou-se adequado para estacas metálicas helicoidais profundas com diferentes dimensões e número de hélices instaladas em solos arenosos. Os resultados das provas de carga realizadas em centrífuga e em campo foram examinados por meio dos métodos existentes na literatura para estimativa de capacidade de carga à tração desenvolvidos para este tipo de fundação. Por meio dos resultados obtidos nos ensaios em centrífuga, constatou-se que nas estacas multi-hélices a porcentagem de capacidade de carga relativa à hélice da ponta aumenta de acordo com o diâmetro da hélice e com a densidade da areia. Nos ensaios de torção de fustes de estacas helicoidais observou-se que, para tubos de mesmo diâmetro e espessura, a ruptura se inicia a partir do mesmo valor de momento torçor aplicado, independentemente de conter ou não emenda.Empirical correlations between installation torque and uplift capacity of helical screw piles are routinely used as a procedure for quality control on site of this type of foundation. In this work, a theoretical model of the relationship between uplift capacity and installation torque of deep helical screw piles in sand was presented to be used as a quality control method for this type of foundation. An experimental program of laboratory and field investigations was carried out in order to validate this theoretical relationship. The field study included uplift tests of full-scale piles installed at the Escola de Engenharia de São Carlos (EESC) and in Contagem (Minas Gerais). The laboratory tests were performed in the Laboratoire Central des Ponts et Chaussées (LCPC/ Nantes) and at the EESC. In the LCPC a program of centrifuge and direct shear interface tests was completed. A set of torsion tests on pile shafts and of direct shear interface tests were carried out at the EESC. The results showed that the theoretical model presented is applicable to different pile dimensions, number of helices, and sand relative density. The methods existing in the literature for estimating uplift capacity of helical screw piles were used to verify the results of uplift capacities measured in field and in centrifuge studies. The results of centrifuge modelling tests demonstrated that the fraction of uplift capacity corresponding to the bottom helix increases with helix diameter and sand density. The torsion tests showed that the failure of the pile shaft begins at the same torque magnitude in experiments on shafts with and without connections.
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Mondal, Somnath. "Flow of particulate suspensions through constrictions : multi-particle effects." 2013. http://hdl.handle.net/2152/21267.
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Particle-laden flows occur in a variety of natural and industrial situations. As particulate suspensions flow through a medium, particles are often retained at constrictions such as pore throats, outlets or orifices. This occurs not only with oversized particles, but also with particles smaller than the constriction. For instance, jams are caused by the formation of particle bridges/arches when several particles attempt to flow through a constriction simultaneously. In many instances the success of an operation depends on our ability to either ensure or stop the flow of particles in the flow stream. Managing the flow of sand into wellbores during hydrocarbon production from poorly consolidated sandstone reservoirs, also referred to as sand control, is one such application in the oil and gas industry. This dissertation presents a multi-pronged effort at modeling the flow of granular suspensions of different concentrations, and through pore openings of different shapes, with two main objectives: (1) predicting the mass and size-distribution of the particles that are produced before jamming, and (2) investigating the underlying factors that influence the onset and stability of particle arches. Since, the dominant interactions and retention mechanisms are concentration dependent, we divided particulate suspensions into three groups based on the volumetric particle concentration ([phi]). High-concentration suspension flows ([phi]>~50%) are dominated by particle-particle interactions. We modeled polydisperse sand packs flowing through screens with rectangular and woven-square openings using 3D discrete element method (DEM). Simulations were validated against experimental data for a wide range of screen opening and sand size distributions. From the experiments and DEM simulations, a new scaling relation is identified, in which the number of different sized particles produced before retention follows a power-law correlation with the particle-to-outlet size ratio. This correlation is explained with a simple probabilistic model of bridging in polydisperse systems and a particle-size dependent jamming probability calculated from experimental data. A new method is presented to estimate the mass and size distribution of the produced solids through screens. The method uses the entire particle size distribution (PSD) of the formation sand, is validated with experimental data and numerical simulations, and provides more quantitative and accurate predictions of screen performance compared to past methods. It is also found that the stability of particle arches is compromised when adjacent outlets are less than three particle diameters away from each other. Low-concentration suspension flows ([phi]<~1%) are dominated by particle-fluid interactions. They were modeled using analytical and stochastic methods to predict sand production through screens with slot and woven-square openings. Analytical expressions were derived for screens with a constant outlet size or with a known outlet size distribution. Monte Carlo simulations showed excellent agreement with the analytical solutions. Based on experiments, we have demonstrated that the models presented here are predictive, provided that an accurate representation of the formation sand PSD and the screen pore size distribution are available. In the intermediate-concentration regime (~1%<[phi]<~50%), the particle trajectories and the flow field are both influenced by each other. The onset of particle bridging due to hydrodynamic forces was studied for monodisperse systems, in a rectangular channel with a single constriction, using coupled computational fluid dynamics (CFD) and DEM simulations. It is shown that the probability of jamming increases with [phi], and there is a critical particle concentration ([phi, superscript asterisk]) for spontaneous bridging. The outlet-to-particle size ratio is the most critical parameter affecting [phi, superscript asterisk]. The effect of inlet-to-particle size ratio, fluid velocity, particle stiffness, particle-to-fluid density ratio, and the effect of convergence in flow geometry were also studied quantitatively. Finally, the application of micro-tomography images in constructing accurate 3D representations and calculating the pore size distribution of complex filter media is demonstrated. A simulation tool is presented that allows one to evaluate the performance of different screens without running expensive and sometimes inconclusive experiments, and enhances our understanding of screen performance. This helps to improve sand screen selection to meet performance criteria under a wide variety of conditions.text
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Ghaly, Ashraf. "Performance of single screw anchors and group action in sand." Thesis, 1990. http://spectrum.library.concordia.ca/3907/1/NL56095.pdf.
Full textBooks on the topic "Sand screen"
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Roberts, R. F. Testing cement-sand screeds using the BRE screed tester. Slough: Cement and Concrete Association, 1986.
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Chaplin, R. G. Mixing and testing of cement: Sand floor screeds. Wexjam Springs, Slough: Cement and Concrete Association, 1986.
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Nisbet, Jim. Prelude to a scream. New York: Carroll & Graf Publishers, 1997.
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Yglesias, Matthew. Heads in the sand: How the Republicans screw up foreign policy and foreign policy screws up the Democrats. Hoboken, N.J: John Wiley & Sons, 2008.
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Henry, James. The turn of the screw: Complete, authoritative text with biographical, historical, and cultural contexts, critical history, and essays from contemporary critical perspectives. 2nd ed. Boston: Bedford/St. Martin's, 2004.
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Henry, James. The turn of the screw. London: J.M. Dent, 1990.
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Henry, James. The turn of the screw: Authoritative text, contexts, criticism. 2nd ed. New York: W.W. Norton, 1998.
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Henry, James. The turn of the screw: An authoritative text, backgrounds and sources, essays in criticism. London: WW Norton, 1989.
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Henry, James. The turn of the screw: And The Aspern papers. Ware: Wordsworth Edns., 1993.
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Henry, James. The turn of the screw: Complete, authoritative text with biographical and historical contexts, critical history, and essays from five contemporary critical perspectives. Boston: Bedford Books of St Martin's Press, 1995.
Find full textBook chapters on the topic "Sand screen"
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Peng, Yudan, Baojiang Sun, Guangming Fu, Xiaoyu Chen, Jingbo Wang, Mingliang Li, and Yuhang Tuo. "Study on Collapse Strength of Sand Control Screen Pipe with Corrosion Defect Under External Pressure." In Lecture Notes in Civil Engineering, 19–31. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0960-3_3.
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Abduljabbar, Abdullah, Mysara Mohyaldinn, and Ahmed Alghurabi. "Analysis and Investigation of the Effects of Particle Size and Concentration on Sand Screen Erosion Prediction and Modelling." In Proceedings of the 2021 International Petroleum and Petrochemical Technology Conference, 367–82. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-9427-1_36.
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Gardner, Hunter H. "Plastic Surgery: Failed Pygmalions and Decomposing Women in Les Yeux sans Visage (1960) and Bride of Re-Animator (1989)." In Classical Myth on Screen, 95–105. New York: Palgrave Macmillan US, 2015. http://dx.doi.org/10.1057/9781137486035_9.
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Caporaletti, P., G. Scarpelli, and R. N. Taylor. "Bearing capacity of screwed conical piles in sand: centrifuge modelling." In Physical Modelling in Geotechnics, 631–36. London: Routledge, 2022. http://dx.doi.org/10.1201/9780203743362-115.
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Richardson, John T. E. "Concepts and Research Methods." In The Legibility of Serif and Sans Serif Typefaces, 11–17. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-90984-0_2.
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AbstractThis chapter distinguishes between typefaces and fonts and between legibilityand readability. A variety of objective methods have been developed for measuring the legibility of printed material, and many have been taken over into research on reading from screens. Researchers have also collected subjective reports from participants regarding the legibility and other properties of presented material. This chapter also describes how typographers define the size of typefaces and which aspects are likely to affect the legibility of material.
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Dogusoy, Berrin, Filiz Cicek, and Kursat Cagiltay. "How Serif and Sans Serif Typefaces Influence Reading on Screen: An Eye Tracking Study." In Design, User Experience, and Usability: Novel User Experiences, 578–86. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-40355-7_55.
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Bittar, E. J., B. M. Lehane, S. Mahdavi, A. P. Blake, D. J. Richards, and D. J. White. "A review of a CPT based axial capacity prediction of screw piles in sand." In Cone Penetration Testing 2022, 838–43. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003308829-124.
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Bittar, E. J., B. M. Lehane, S. Mahdavi, A. P. Blake, D. J. Richards, and D. J. White. "A review of a CPT based axial capacity prediction of screw piles in sand." In Cone Penetration Testing 2022, 838–43. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003329091-124.
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Mirjafari, Yasin, Rolando P. Orense, and Naoaki Suemasa. "Correlation Between CPT and Screw Driving Sounding (SDS)." In IAEG/AEG Annual Meeting Proceedings, San Francisco, California, 2018 - Volume 2, 47–54. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-93127-2_8.
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Pavan Kumar, P. V., Shantanu Patra, and Sumanta Haldar. "Behaviour of Screw Pile Under Axial Compressive and Lateral Loading in Sand for Offshore Energy Foundations." In Advances in Offshore Geotechnics, 393–403. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6832-9_23.
Full textConference papers on the topic "Sand screen"
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Bai, Jianhua, Yugang Zhou, Huaxiao Wu, Shunchao Zhao, Baobing Shang, and Tao Fang. "Experimental Study on Type and Accuracy Optimization of Sand Control in Sand-Producing Heavy Oil Well." In SPE Eastern Europe Subsurface Conference. SPE, 2021. http://dx.doi.org/10.2118/208563-ms.
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Abstract This paper proposes a set of methods for selecting the type of sand control screen and optimizing the accuracy in heavy oil Wells, which take into account the requirements of sand control and productivity protection in heavy oil Wells. Sand retaining experiments are carried out with slotted screen, wire wrapped screen and metal filter screen under the condition of oil and water mixed sand carrying flow. In order to optimize the sand control screen suitable for heavy oil well, this paper uses the weighted average method to quantitatively evaluate the flow performance, sand retention performance and oil conductivity of the screen. Then, repeat the experiment by changing the accuracy of the screen to optimize the accuracy. The experimental results show that the permeability of the three kinds of sand control screens is about 5μm2 when only heavy oil plugging occurs. Under the combined plugging action of formation sand and heavy oil, the slotted screen has the highest permeability, and its conductivity to heavy oil is 10% higher than that of the other two screens. The slotted screen and wire wrapped screen have the higher sand retention performance, with a sand retention rate of about 90%. Through the quantitative evaluation of the sand control performance of three kinds of screens in different production stages of heavy oil Wells, the slotted screen is selected as the optimal screen. For simulated formation sand with a median particle size of 250μm, the optimal sand control accuracy is 200μm. This paper provides a quantitative optimization method of screen type and accuracy for sand control design of sand-producing heavy oil Wells, so as to maximize the productivity under the premise of ensuring sand-producing control of heavy oil Wells.
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Lazo, Antonio, Jeremy Davis, and John Weirich. "Erosion Resistant Sand Screen: Development and Deployment." In SPE Annual Technical Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/210128-ms.
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Abstract A design optimized coated sand screen was developed that increases the erosion resistance of conventional sand screens. Computational fluid dynamics and laboratory testing were conducted to determine the design optimizations and a coating was developed through rigorous testing. The screen has now been deployed and adopted with success.
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Ai, Shuang, Youzhi Duan, Yashu Chen, Chen Gao, and Rached Rached. "Experimental Study of Shape Memory Sand Control Screen." In International Petroleum Technology Conference. IPTC, 2022. http://dx.doi.org/10.2523/iptc-22357-ms.
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Abstract Shape memory sand control screen completion based on shape memory polymer not only has the advantages of simple process and easy to run in hole, like independent screen, but also can achieve the sand management effect of gravel filling. Therefore, shape memory sand control screen has wide application prospects. However, since the shape memory material is temperature-sensitive, a large number of laboratory experiments are needed to evaluate its expansion, seepage and sand retaining capabilities, as well as optimize the polymer system and screen structure. A performance evaluation experiment system for full-size shape memory screen prototype was developed. The device can describe the parameters of the shape memory screen during the expansion process and after expansion in real time and quantitatively, such as permeability, outer diameter and residual stress. The expansion behavior of screen prototype is controlled by step heating the passing through fluid to simulate the screen run in hole operation. 60 sets of experiments were carried out using the device. The expansion performance, seepage performance and sand control performance of shape memory screens were evaluated. Shape memory polymer formulation and screen structure are also optimized. The research shows that the optimized shape memory sand control screen densely filled annulus and effectively supports the wellbore after expansion. The permeability of the expanded screen can be up to 35µm2, the displacement pressure difference can be less than 1kPa, and the sand control precision can be up to 0.061mm. Therefore, shape memory sand control screen can be used for sand control completion of oil and gas wells with limited well site conditions such as long horizontal wells, complex wells and offshore wells. This paper presents an experiment device to evaluate the performance of shape memory screen, the dynamic expansion behavior is described during the expansion process and after expansion in real time and quantitatively.
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Malbrel, Christophe, and Edward Blackburne. "Design and Qualification of a New Erosion Resistant Sand Control Screen." In SPE Annual Technical Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/209951-ms.
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Abstract The issue of screen erosion is a complex problem that doesn't lend itself very easily to modeling and computer aided design, particularly when it comes to metal mesh screens. Interactions between solid and liquid (settling/suspension) and between the solids and the screen material (plugging) are complex and evolving over time due to wear and fluctuations associated with multiphase flow or other reservoir related changes over the life of the well. As a result, screen development is best performed using pilot testing to simulate downhole conditions and optimize the design. In that regard, the setting of standard performance tests is essential. A series of time lapse erosion tests performed on mesh screens recently highlighted the benefits of shielding the screen from the basepipe perforations to improve erosion resistance. This new feature provided several fold improvements in the mesh screen erosion resistance and was implemented in a novel screen design. It consists in placing a partially perforated inner shroud underneath a regular screen cartridge, with blind spots precisely located over the basepipe holes to prevent direct line of sight flow and reducing local velocity by diffusing flow across the entire screen area. An extended continuous erosion test was used to validate the design and qualify metal meshes, and mechanical testing as per the new API19ss standard for sand control screens was performed to qualify the new screen and demonstrate its reliability. Comparing the performance of the new screen design against similarly built screens confirmed that the addition of the new diffusion shroud does not adversely impact the mechanical performance of the screen while imparting improved erosion resistance to the screen.
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Simancas, Ricardo Gomez, Carlos de Sa, Yuri Timoteo, Sandra Gomez-Nava, John B. Weirich, Robert E. Forsyth, Ramon R. Garza, Jose Gomes Guenji, and Arjang Gandomkar. "Completion Standardization Utilizing Conformable Sand Screen Technology in Multilayered Ultrafine Sand Reservoir." In SPE International Conference and Exhibition on Formation Damage Control. SPE, 2022. http://dx.doi.org/10.2118/208839-ms.
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Abstract The development activities of CABGOC Block 0 pose various challenges to completion design. Multiple types of reservoirs are encountered, while it is also critical ensuring field development remains economic. Completion standardization has been an important tool to maximize operational efficiency and reduce costs of installation. Nonetheless, given the variety of reservoir types found in the area of operation, few completion types are required to solve most of the cases. Despite of having successfully implemented completion standards in several types of reservoirs, there was a gap on the type of completion to efficiently drain multilayered fine particle reservoirs with sanding tendencies. These field characteristics make standard completion techniques difficult to deploy, therefore a novel conformable sand screen solution was selected for a field trial. This paper describes the plan, preparation, execution, and the results of the conformable sand screen deployment in CABGOC's N'Singa field. Furthermore, it demonstrates how effective the conformable sand control technology can be established for a multi zone open hole type of reservoir. Integral zonal isolation and flow control of various zones provided flexibility in production management for a four well campaign. The Shape Memory Polymer (SMP) conformable sand screen technology was key to produce sand free from the fine particle sands in this marginal field in Cabinda Province offshore Angola. Unlike the conventional sand control technique, the conformable sand management system selected for this field trial leverages a unique SMP material that expands downhole in the presence of an activation fluid and conforms to the borehole wall. Compatibility and expansion tests were conducted in the planning stage to validate screen conformance with selected completion fluids. Tests were also used to define deployment procedures and optimal fluids management practices for the completion operation. Installation was successful on all four wells as per plan. All equipment and fluids were managed and operated efficiently with flawless execution. The wells were brought to production and the results confirmed the effectiveness of the technology in terms of sand retention, and completion efficiency during production. The project was concluded with significant reduction in rig time, personnel requirement, fluid management, and pumping operations. This allowed for selective production of reservoir that would not have been possible with standard techniques. Additionally, the obtained results facilitated the decision to implement conformable sand screens as standard completion design for other fields in the reservoir with similar challenges as those observed in N'Singa.
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Barth, Peter, Johanna Zimmermann-Ptacek, Jan Saeby, Steven Hicking, Hui Xu, Michael La Pointe, Trygve Kamsvag, et al. "Determining Ceramic Sand Screen Operational Envelop and Service Lifetime Prediction Model." In Offshore Technology Conference. OTC, 2022. http://dx.doi.org/10.4043/31896-ms.
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Abstract Downhole sand control selection plays a vital role in sand free production optimization over the well lifecycle. Design and selection criteria to assess the optimum sand control methodology requires consideration of many inputs to assess the sand control service life. A qualified sand control method, offering high erosion resistance is critical to enhance service life, especially in cases where small particles may be entrained in the produced fluids at high velocity. An integrated approach considering advances in filter media material, allow integration of ceramic components, to redefine operating envelope of sand control screen. In the process of designing and selecting a suitable sand control method for a high-rate gas well application in Norway, ceramic sand screens were considered as a possible solution to manage the high erosion loading expected during production. To estimate the operational limits for stand-alone ceramic sand screens, a series of erosion tests were conducted by a third party research and testing agency defined by the operator to evaluate the erosion behavior of the ceramic filter element. As indicator for erosion the filtration cut point (FCP) of the ceramic filter element was used. The testing allowed the operating envelope of the ceramic screens to be defined in terms of FCP and erosion load. For a specific increase in FCP value the operational limits for a stand-alone ceramic sand screen can estimated. This methodology was then applied to a specific field application to predict ceramic sand screen lifetime for the expected production profile. This paper presents the results of the study, using CFD simulations and, independent industry testing methodology to investigate the suitability and expected service life for stand-alone ceramic sand screen. Understanding the operational erosion risk profiling enables the operator to apply an erosional resistant stand-alone screen approach offering reducing planning, deployment complexity, lower HS&E risk and increased flexibility in optimising the wells production envelope.
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Barth, Peter, Johanna Zimmermann-Ptacek, Jan Saeby, Steven Hicking, Hui Xu, Michael La Pointe, Trygve Kamsvag, et al. "Determining Ceramic Sand Screen Operational Envelop and Service Lifetime Prediction Model." In Offshore Technology Conference. OTC, 2022. http://dx.doi.org/10.4043/31896-ms.
Full textAbstract:
Abstract Downhole sand control selection plays a vital role in sand free production optimization over the well lifecycle. Design and selection criteria to assess the optimum sand control methodology requires consideration of many inputs to assess the sand control service life. A qualified sand control method, offering high erosion resistance is critical to enhance service life, especially in cases where small particles may be entrained in the produced fluids at high velocity. An integrated approach considering advances in filter media material, allow integration of ceramic components, to redefine operating envelope of sand control screen. In the process of designing and selecting a suitable sand control method for a high-rate gas well application in Norway, ceramic sand screens were considered as a possible solution to manage the high erosion loading expected during production. To estimate the operational limits for stand-alone ceramic sand screens, a series of erosion tests were conducted by a third party research and testing agency defined by the operator to evaluate the erosion behavior of the ceramic filter element. As indicator for erosion the filtration cut point (FCP) of the ceramic filter element was used. The testing allowed the operating envelope of the ceramic screens to be defined in terms of FCP and erosion load. For a specific increase in FCP value the operational limits for a stand-alone ceramic sand screen can estimated. This methodology was then applied to a specific field application to predict ceramic sand screen lifetime for the expected production profile. This paper presents the results of the study, using CFD simulations and, independent industry testing methodology to investigate the suitability and expected service life for stand-alone ceramic sand screen. Understanding the operational erosion risk profiling enables the operator to apply an erosional resistant stand-alone screen approach offering reducing planning, deployment complexity, lower HS&E risk and increased flexibility in optimising the wells production envelope.
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Pei, Xiaohan, Bairu Shi, Lin Chen, and Lichen Zheng. "Metal Foam Sand Control Screen." In SPE Asia Pacific Oil and Gas Conference and Exhibition. Society of Petroleum Engineers, 2013. http://dx.doi.org/10.2118/165829-ms.
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Foucher, Pierre, Anand Raghavan, Todor Sheiretov, David Engel, Christopher Babin, Josh Wurtz, Hayden Melvin, and Francisco Garzon. "Sand Control Screen Clogging Remediation with Innovative High-Density Slot Machining Solution." In SPE/ICoTA Well Intervention Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/209031-ms.
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Abstract A gravel pack equipped with sand screen completion is commonly used in deepwater Gulf of Mexico. Over time, fines migration and asphaltenes clog the screens of the completion, which negatively affects the well production. In order to remediate the damage, openings are created in the concentric base pipe inside the screen (Fig. 1). This process creates a flow path that allows for cleaning of debris from the screens through jetting and bull heading of stimulation fluids. The combination of these operations restores the productivity of the well. In the conventional method, the cuts are machined one at a time with a blade spinning in the horizontal plane. To achieve sufficient flow area, this step is repeated approximately hundred times to distribute the cuts along the target screen interval. Such an operation can require up to 14 days including the downhole cutting time as well as trips in and out of the well to replace the blades. The blades protrude only slightly from the base pipe to avoid damaging the screen. The screens are separated from the base pipe with standoff to maintain a constant clearance. Thus, the blades cannot damage the screen.
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Agunloye, Ehimhen, and Erome Utunedi. "Optimizing Sand Control Design Using Sand Screen Retention Testing." In SPE Nigeria Annual International Conference and Exhibition. Society of Petroleum Engineers, 2014. http://dx.doi.org/10.2118/172488-ms.
Full textReports on the topic "Sand screen"
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Litaor, Iggy, James Ippolito, Iris Zohar, and Michael Massey. Phosphorus capture recycling and utilization for sustainable agriculture using Al/organic composite water treatment residuals. United States Department of Agriculture, January 2015. http://dx.doi.org/10.32747/2015.7600037.bard.
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Objectives: 1) develop a thorough understanding of the sorption mechanisms of Pi and Po onto the Al/O- WTR; 2) determine the breakthrough range of the composite Al/O-WTR during P capturing from agro- wastewaters; and 3) critically evaluate the performance of the composite Al/O-WTR as a fertilizer using selected plants grown in lysimeters and test-field studies. Instead of lysimeters we used pots (Israel) and one- liter cone-tainers (USA). We conducted one field study but in spite of major pretreatments the soils still exhibited high enough P from previous experiments so no differences between control and P additions were noticeable. Due to time constrains the field study was discontinued. Background: Phosphorous, a non-renewable resource, has been applied extensively in fields to increase crop yield, yet consequently has increased the potential of waterway eutrophication. Our proposal impetus is the need to develop an innovative method of P capturing, recycling and reuse that will sustain agricultural productivity while concurrently reducing the level of P discharge from and to agricultural settings. Major Conclusions & Achievements: An innovative approach was developed for P removal from soil leachate, dairy wastewater (Israel), and swine effluents (USA) using Al-based water treatment residuals (Al- WTR) to create an organic-Al-WTR composite (Al/O-WTR), potentially capable of serving as a P fertilizer source. The Al-WTR removed 95% inorganic-P, 80% to 99.9% organic P, and over 60% dissolved organic carbon from the agro-industrial waste streams. Organic C accumulation on particles surfaces possibly enhanced weak P bonding and facilitated P desorption. Analysis by scanning electron microscope (SEM- EDS), indicated that P was sparsely sorbed on both calcic and Al (hydr)oxide surfaces. Sorption of P onto WW-Al/O-WTR was reversible due to weak Ca-P and Al-P bonds induced by the slight alkaline nature and in the presence of organic moieties. Synchrotron-based microfocused X-ray fluorescence (micro-XRF) spectrometry, bulk P K-edge X-ray absorption near edge structure spectroscopy (XANES), and P K-edge micro-XANES spectroscopy indicated that adsorption was the primary P retention mechanism in the Al- WTR materials. However, distinct apatite- or octocalciumphosphatelike P grains were also observed. Synchrotron micro-XRF mapping further suggested that exposure of the aggregate exteriors to wastewater caused P to diffuse into the porous Al-WTR aggregates. Organic P species were not explicitly identified via P K-edge XANES despite high organic matter content, suggesting that organic P may have been predominantly associated with mineral surfaces. In screen houses experiments (Israel) we showed that the highest additions of Al/O-WTR (5 and 7 g kg⁻¹) produced the highest lettuce (Lactuca sativa L. var. longifolial) yield. Lettuce yield and P concentration were similar across treatments, indicating that Al/O- WTR can provide sufficient P to perform similarly to common fertilizers. A greenhouse study (USA) was utilized to compare increasing rates of swine wastewater derived Al/O-WTR and inorganic P fertilizer (both applied at 33.6, 67.3, and 134.5 kg P₂O₅ ha⁻¹) to supply plant-available P to spring wheat (TriticumaestivumL.) in either sandy loam or sandy clay loam soil. Spring wheat straw and grain P uptake were comparable across all treatments in the sandy loam, while Al/O-WTR application to the sandy clay loam reduced straw and grain P uptake. The Al/O-WTR did not affect soil organic P concentrations, but did increase phosphatase activity in both soils; this suggests that Al/O-WTR application stimulated microorganisms and enhance the extent to which microbial communities can mineralize Al/O-WTR-bound organic P. Implications: Overall, results suggest that creating a new P fertilizer from Al-WTR and agro-industrial waste sources may be a feasible alternative to mining inorganic P fertilizer sources, while protecting the environment from unnecessary waste disposal.