Relevant bibliographies by topics / Drilling

Academic literature on the topic 'Drilling'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 June 2024

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Journal articles on the topic "Drilling"

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Yue, Qian Sheng, Qing Zhi Yang, Shu Jie Liu, Bao Sheng He, and You Lin Hu. "Rheological Properties of Water Based Drilling Fluid in Deep Water Drilling Conditions." Applied Mechanics and Materials 318 (May 2013): 507–12. http://dx.doi.org/10.4028/www.scientific.net/amm.318.507.

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The rheological property of the drilling fluid was one of the focus problems in deep-water drilling, which was widely concerned. In the article, the viscosity-temperature properties of commonly used water soluble polymeric solution, polymeric brine solution, bentonite slurry, polyacrylamide-potassium chloride drilling fluid with different densities and water-base drilling fluid systems commonly used for China offshore well drillings were studied. 4°C-to-20°C viscosity ratio and 4°C-to-20°C YP ratio were used to judge the thickening level of drilling fluids due to low temperature. The experimental results show that on the condition of without considering the influence of pressure on the rheological property of water-base drilling fluid, its viscosity and yield point raised obviously with the decrease of temperature, but the increase level is proximately the same, its 4°C-to-20°C apparent viscosity ratio is basically within the 1.50. Analysis indicates that the viscosity of water-base drilling fluid depends on the viscosity of dispersed media. The performance of water medium determines the viscosity-temperature property of the water-based drilling fluid. It is proposed that in deep water drillings, if a water-base drilling fluid is used, it is not necessary to emphasize the influence of deep water and low temperature on the flowability. On the condition of guaranteeing wellbore stability and borehole cleaning, it is more suitable for using the water-base drilling fluid with low viscosity and low gel strength for deep water well drillings.
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Wen, Yan Liang, Guo Jian Zhang, and Zhi Qiang Zhang. "Numerical Experiments of Drilling Pressure Relief Preventing Roadway Rock Burst." Applied Mechanics and Materials 353-356 (August 2013): 1583–87. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.1583.

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Based on rock burst mechanism and the present research situation of control technique, pressure relief process of drilling to rock burst roadway is modeled by numerical simulation software, the contrast and analysis of stress field of surrounding rock are put up with and without pressure relief. The results of the calculation indicate that after drilling high stress area on the both sides of the roadway reduces obviously, but stress peak increases and its position is not converted into the deep areas evidently. It is the energy of the high stress area that makes the rock mass between the drillings failure, which achieves the purpose of pressure relief. Drilling diameter and space between drillings are main factors influencing pressure relief effect. The major the drilling diameter and the smaller the space between boreholes, the more complete the rock mass between the drillings failure and the better the pressure relief effect.
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Akbar, Muhammad Sjahid, and Kestrilia Rega P. "Perbandingan Model Data Hilang dengan Model Least Median Square (LMS) pada Optimasi Respon Ganda menggunakan Metode Generalized Reduced Gradient (GRG) (Kasus Penggurdian Komposit Karbon)." Sains & Teknologi 2, no. 1 (October 17, 2019): 63. http://dx.doi.org/10.24123/jst.v2i1.2246.

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Epoxy drillings have consequences the chisel will worn down and drilling result vary greatly. This research purpose is to minimize the chisel wearing out and drilling result deviation with generalized reduce gradient method (GRG). advantage of the method can to look for weighted from both response. This method Applied to outlier data for the chisel wearing out. Research result are more take note of the chisel wearing out than drilling result deviation and optimum condition to machine speed is 715,5 rpm, scrape speed is 90 mm/min, chisel angel is 73,8o with the chisel wearing out is 0,3253 mm and drilling result deviation 5,3720 micron.
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RAHIM, E. A., S. SHARIF, Z. A. AHMAD, A. S. MOHRUNI, and I. A. SYED. "Machinability Investigation when Drilling Titanium Alloys(Drilling technology)." Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2005.2 (2005): 553–57. http://dx.doi.org/10.1299/jsmelem.2005.2.553.

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Szalma, József, Ole Klein, Bálint Viktor Lovász, Edina Lempel, Sára Jeges, and Lajos Olasz. "Recommended Drilling Parameters of Tungsten Carbide Round Drills for the Most Optimal Bone Removals in Oral Surgery." BioMed Research International 2018 (November 19, 2018): 1–10. http://dx.doi.org/10.1155/2018/3108581.

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Background. High temperatures during drilling can cause thermal osteonecrosis and abnormal wound healing. According to our best knowledge, a widely accepted recommendation for optimal drilling parameters in routine oral surgery bone removals does not exist. Purpose. Our aim was to investigate the correlations of different drilling parameters, including axial load and revolution speed on drilling temperatures and preparation times. Materials and Methods. Standard, 5 mm deep cavities were drilled in 20 PCF (lb/ft3) dens polyurethane blocks with 3 mm (50PCF) cortical layer using new and worn, 3.1mm in diameter tungsten carbide round drills. Worn drills were used in 50 impacted third molar operations before. Axial loads of 3N, 10N, and 25N and speeds of 4.000-8.000-16.000-40.000 revolutions per minute (rpm) were tested. Temperature differences of drilling parameters were calculated by 1-way ANOVA, followed by Tukey’s HSD post hoc tests. Time differences and differences among “optimal” and “suboptimal” groups (with the cut-off value of 3°C and 3s) were estimated by Kruskal-Wallis test with pairwise comparisons. P<0.05 was considered significant. Results. The highest mean temperatures with new and worn drills were 4.64±0.53°C and 6.89±1.16°C, while drilling times varied between 0.16±0.02s and 22.77±5.45s. A 3°C and 3s cut-off value classified drillings significantly to (1) optimal [3N and 8000-16000-40000 rpm or 10N and 4000-8000-16000-40000 rpm] or suboptimal due to (2) high temperatures or (3) long preparation times. Using worn drills, the following parameters should be avoided: 3N with 4.000-8.000 rpm, 10N with 40000 rpm, and 25N at any revolutions. Discussion. The study extensively mapped the drilling temperatures and preparation times of tungsten carbide round drills. Temperatures did not exceed 10°C during drillings with maximal amount of cooling, as well as the drilling parameters, which kept temperatures and preparation times in the most optimal range which were clearly established.
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Schwander, J., S. Marending, T. F. Stocker, and H. Fischer. "RADIX: a minimal-resources rapid-access drilling system." Annals of Glaciology 55, no. 68 (2014): 34–38. http://dx.doi.org/10.3189/2014aog68a015.

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AbstractDetermining the expected age at a potential ice-core drilling site on a polar ice sheet generally depends on a combination of information from remote-sensing methods, estimates of current accumulation and modelling. This poses irreducible uncertainties in retrieving an undisturbed ice core of the desired age. Although recently perfected radar techniques will improve the picture of the ice sheet below future drilling sites, rapid prospective drillings could further increase the success of deep drilling projects. Here we design and explore a drilling system for a minimum-size rapid-access hole. The advantages of a small hole are the low demand for drilling fluid, low overall weight of the equipment, fast installing and de-installing and low costs. We show that, in theory, drilling of a 20 mm hole to a depth of 3000 m is possible in ∼4 days. First concepts have been realized and verified in the field. Both the drill cuttings and the hole itself can be used to characterize the properties of the ice sheet and its potential to provide a trustworthy palaeo-record. A candidate drilling site could be explored in ∼2 weeks, which would enable the characterization of several sites in one summer season.
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Augustin, L., H. Motoyama, F. Wilhelms, S. Johnsen, S. B. Hansen, P. Talalay, and N. Vasiliev. "Drilling comparison in ‘warm ice’ and drill design comparison." Annals of Glaciology 47 (2007): 73–78. http://dx.doi.org/10.3189/172756407786857820.

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AbstractFor the deep ice-core drilling community, the 2005/06 Antarctic season was an exciting and fruitful one. In three different Antarctic locations, Dome Fuji, EPICA DML and Vostok, deep drillings approached bedrock (the ice–water interface in the case of Vostok), emulating what had previously been achieved at NorthGRIP, Greenland, (summer 2003 and 2004) and at EPICA Dome C2, Antarctica (season 2004/05). For the first time in ice-core drilling history, three different types of drill (KEMS, JARE and EPICA) simultaneously reached the depth of ‘warm ice’ under high pressure. After excellent progress at each site, the drilling rate dropped and the drilling teams had to deal with refrozen ice on cutters and drill heads. Drills have different limits and perform differently. In this comparative study, we examine depth, pressure, temperature, pump flow and cutting speed. Finally, we compare a few parameters of ten different deep drills.
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Vieira, Yesus Emmanuel Medeiros, Renata Albergaria de Mello Bandeira, and Orivalde Soares da Silva Junior. "Application of a Logit Model for Water well site location in fractured-bedrock aquifers in northeastern Brazil." International Journal for Innovation Education and Research 10, no. 8 (July 19, 2022): 33–52. http://dx.doi.org/10.31686/ijier.vol10.iss8.3854.

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Wells drilling process in fractured-bedrock aquifers is a difficult task. Extreme variations in lithology and structure features, as well productive water zones sited at preferential points make geological and geophysical investigations difficult. To contribute to the understanding of the process of groundwater zones occurrence in fractured-bedrock aquifers, this paper develops a drilling prospective model by using regression analysis, whose parameters were calibrated according to the photogeological and cartographic analysis of 113 drilling points in the states of Rio Grande do Norte, Paraíba, and Ceará. The effectiveness of the resulting model was assessed through a sample of 43 additional drillings, which were carried out aiming at the distribution of water to the communities in the semiarid region of Brazil. The obtained results indicate the model as an important tool in the drilling process, with direct implications on the logistics costs of water well site location and consequent attendance to the population that needs the water.
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Liu, Gang, Dou Mei, and Jialin Zhang. "A Method Based on SVM Algorithm for Wellbore Collision Monitoring: Using Vibration Signal Characteristics of Bit Drilling in Different Mediums." International Journal of Signal Processing Systems 8, no. 2 (June 2020): 42–48. http://dx.doi.org/10.18178/ijsps.8.2.42-48.

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During well drilling operations of offshore oil and gas exploration, the progress that bit drills through rocks, steel casing and other mediums produces vibration signal with different characteristics. In this work, we presented a wellbore collision monitoring method that using vibration signal produced by bit penetrating in different drilling mediums to identify those unwanted cases that bit is colliding into adjacent wellbores in drilling operation. Firstly, experiments have been carried out to acquire vibration signal of bit drilling in sorts of rock, cement and steel casing mediums. Then, to dig out signal feature in different time scales, empirical mode decomposition (EMD) method was used to decompose every signal sample into several intrinsic mode functions (IMFs) and we extracted and analyzed characteristics in time and frequency domain of all signal IMFs. Finally, support vector machine classifiers were trained with feature vectors of a part of signal IMFs to realize the function of drilling mediums identification and classification. SVM Performance test results indicates that correct identification rate of those classifiers can basically reach 90%. The method presented in this paper proved to be feasible to provide a new approach to monitor wellbore collision risks for offshore drillings.
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Zhang, Guang Wei, Li You, and Zhao Li. "The Finite Element Analysis of a Shaft." Advanced Materials Research 712-715 (June 2013): 1022–26. http://dx.doi.org/10.4028/www.scientific.net/amr.712-715.1022.

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Finite element method is a kind of method with the aid of computer engineering analysis of discretization numerical calculation. In the rotary steering drilling during the process of practical work, there was a great drilling pressure torque, space size limit strictly and requires a high efficiency and reliability .The working conditions are complex when drillings work underground and the working environment is harsh, there may has many unpredictable situations, the drilling tool may encounter the loose soil, or may be a hard rock, and these changes force is transmitted through the variation cardan shaft, so it is very necessary to check the strength of the variation cardan shaft. This article analyze the variation cardan shaft by ANSYS and provide a reference for actual use.
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Dissertations / Theses on the topic "Drilling"

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Salas, Safe Jose Gregorio. "Drilling optimization using drilling simulator software." Thesis, Texas A&M University, 2003. http://hdl.handle.net/1969.1/173.

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Drilling operations management will face hurdles to reduce costs and increase performance, and to do this with less experience and organizational drilling capacity. A technology called Drilling Simulators Software has shown an extraordinary potential to improve the drilling performance and reduce risk and cost. Different approaches have been made to develop drilling-simulator software. The Virtual Experience Simulator, geological drilling logs, and reconstructed lithology are some of the most successful. The drilling simulations can run multiple scenarios quickly and then update plans with new data to improve the results. Its storage capacity for retaining field drilling experience and knowledge add value to the program. This research shows the results of using drilling simulator software called Drilling Optimization Simulator (DROPS®) in the evaluation of the Aloctono block, in the Pirital field, eastern Venezuela. This formation is characterized by very complex geology, containing faulted restructures, large dips, and hard and abrasive rocks. The drilling performance in this section has a strong impact in the profitability of the field. A number of simulations using geological drilling logs and the concept of the learning curve defined the optimum drilling parameters for the block. The result shows that DROPS® has the capability to simulate the drilling performance of the area with reasonable accuracy. Thus, it is possible to predict the drilling performance using different bits and the learning-curve concept to obtain optimum drilling parameters. All of these allow a comprehensive and effective cost and drilling optimization.
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Ozer, Ceren. "Hydraulics Optimization Of Foam Drilling In Drilling Operations." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/2/12611059/index.pdf.

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ABSTRACT HYDRAULICS OPTIMIZATION OF FOAM DRILLING IN DRILLING OPERATIONS Ö
zer, Ceren M. Sc., Department of Petroleum and Natural Gas Engineering Supervisor: Assoc. Prof. Dr. Evren Ö
zbayoglu September 2009, 72 pages In drilling, drilling fluid affects every single step of operation. If rig system is thought as the human body, drilling mud can be defined as the blood system of it. Drilling fluid carries the cuttings, cools the bit, it conditions the hole and so on. Some special kinds of drilling fluids are used for special purposes such as underbalanced drilling. Underbalanced drilling is generally used to prevent formation damage, lost circulation and to increase the penetration rate.Since 1980&rsquo
s foam is used as drilling fluid for underbalanced drilling purposes and there are some models for bit hydraulic optimizations. In this study, mathematical model has been derived considering not the volumetric flow rate but the mass flow rate of the foams. Maximum hydraulic horse power at the bit is determined as a function of mass flow rate. Using this concept, optimum volumetric flow rates for liquid and gas phases as well as optimum nozzle size are determined.Using this mathematical model, a computer program is developed for comparing the results with the existing data available in the literature. It accounts for the compressibility of foam and pressure losses inside the drill string, bit and annulus.Hole size, drill-string properties, formation temperature and pressure, maximum inlet pressure are used as input parameters. Program calculates static back pressure,pressure losses in the whole system, bottom hole foam properties such as quality and velocity and optimum liquid and gas flow rates which are the key parameters of foamdrilling optimization. Results show that liquid and gas rates should be increased with increasing hole sizeand formation pressure. Increasing temperature gradient causes a minimal decrease on foam rate properties. In addition, pressure losses due to friction increases with increasing hole size and formation pressure. Decrease in formation temperature also decreases the foam quality. Changes in temperature gradient causes minimal changes on foam rate properties. Comparisons of the proposed model with other models from the literature also gave good match. The optimization criteria and assumptions are differing from the existing models. As a result the comparison does not have to one to one match with the others. The results from this study may be used for optimization of flow rate of foam as drilling fluid based on mass flow.
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Eren, Tuna. "Real-time-optimization Of Drilling Parameters During Drilling Operations." Phd thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12611558/index.pdf.

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Real-time optimization of drilling parameters during drilling operations aims to optimize weight on bit, bit rotation speed for obtaining maximum drilling rate as well as minimizing the drilling cost. The process is considered to be formation specific. A statistical method such as multiple linear regression technique has been used for the drilling optimization. An extensive literature survey on drilling optimization was conducted for this research study. A model is developed for this purpose using actual field data collected through modern well monitoring and data recording systems, which predicts the rate of drilling penetration as a function of available parameters. The rate of penetration general equation is optimized for effective functions at each data point. In order to optimize the parameters in the field, a computer network is required to be developed. The computer network will keep the piped data directly from the data source, and continuously be collecting the new data to be fed. A database present at the central computer will be continuously calculating the developed model parameters by means of multiple regression technique and inform the team at the field. The field engineer will transmit the current drilling parameters back to the central computer, and the headquarters will determine the new model parameters and optimum drilling parameters by including the recently received information. Therefore, there will be a real-time-optimization process. It is considered that this technique is going to be widely used in future drilling activities since it could reduce drilling costs and minimize probability of encountering problems due to working with optimized parameters. It has been found that drilling rate of penetration could be modelled in real-time environment as a function of independent drilling variables such as weight on bit, rotation speed of the string, drilling fluid weight, and formation characteristics. The ability to have the drilling rate of penetration with respect to depth characteristically with certain parameters for specific formations on real-time basis could bring new insights to the nature of drilling optimization studies. Any significant departure of the actual rate of penetration from the predicted rate of penetration trend could have important indications which could be detected beforehand in real-time. The study has also achieved one of its objectives, giving the optimized independent drilling parameters found following statistical synthesis.
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Ma, Jia. "Smart Drilling, a computer-based system for planning drilling operations." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ30964.pdf.

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Helgeland, Leif Rune. "Drilling of Deep-set Carbonates Using Pressurized Mud Cap Drilling." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for petroleumsteknologi og anvendt geofysikk, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-25582.

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A majority of the “easy” fields have already been developed, while demand for oil and gas continues to increase rapidly. Reservoirs in deep-set carbonates contains a large amount of the worlds remaining hydrocarbons and could pose as a solution for supplying the future demand. However, extracting these hydrocarbons has proven to be a daunting task. Carbonate formations are often severely fractured and karstified, leading to large or even total losses during drilling. As these fractures and “caves” are also the main target for gas, kicks and blow-outs are a constant threat.In this master thesis a variant of Managed Pressure Drilling (MPD), Pressurized Mud Cap Drilling (PMCD), has been reviewed. PMCD uses a static mud cap in the annulus to provide adequate downhole pressure, while a cheap sacrificial fluid is pumped down the drillstring to remove cuttings and transport it into the formation. A literature study was done in order to compare PMCD against other existing tech- niques, specifically conventional drilling and Constant Bottom Hole Pressure, another MPD variant. Working along side the losses have enabled PMCD to safely drill to Total Depth in these reservoirs, while reducing most of the Non-Productive Time and having an overall cheaper operation. Where other techniques are relying on time consuming and costly Lost Circulation Material, cement or other means of plugging the formation, PMCD works at its optimal.A static model was made to more clearly show the physics behind PMCD and to be able to simulate an operation through a gas bearing total loss ”cave” in a deep- set carbonate environment. Its procedures and advantages became clear, though the model and reservoir environment was rather simplistic. After an evaluation, the results were that PMCD lacks versatility and is not yet fully accepted by the industry, but that it offers the best solution for drilling of deep-set carbonates. The main conclusion is that in these reservoir, PMCD should as a minimum be used as a contingency in exploration wells.
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Paknejad, Amir Saman. "Foam drilling simulator." Texas A&M University, 2005. http://hdl.handle.net/1969.1/4792.

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Although the use of compressible drilling fluids is experiencing growth, the flow behavior and stability properties of drilling foams are more complicated than those of conventional fluids. In contrast with conventional mud, the physical properties of foam change along the wellbore. Foam physical and thermal properties are strongly affected by pressure and temperature. Many problems associated with field applications still exist, and a precise characterization of the rheological properties of these complex systems needs to be performed. The accurate determination of the foam properties in circulating wells helps to achieve better estimation of foam rheology and pressure. A computer code is developed to process the data and closely simulate the pressure during drilling a well. The model also offers a detailed discussion of many aspects of foam drilling operations and enables the user to generate many comparative graphs and tables. The effects of some important parameters such as: back-pressure, rate of penetration, cuttings concentration, cuttings size, and formation water influx on pressure, injection rate, and velocity are presented in tabular and graphical form. A discretized heat transfer model is formulated with an energy balance on a control volume in the flowing fluid. The finite difference model (FDM) is used to write the governing heat transfer equations in discretized form. A detailed discussion on the determination of heat transfer coefficients and the solution approach is presented. Additional research is required to analyze the foam heat transfer coefficient and thermal conductivity.
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Fossum, Trygve Olav. "Analysis and control of drilling riser dynamics in dual gradient drilling." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for marin teknikk, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-22358.

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The aim of this thesis is to investigate a dual gradient riser system, adapted for operations in the Gulf of Mexico and subjected to first- and second-order wave forces, current and rig/vessel motion.Deep water drilling in narrow pressure zones pose several challenges for handling well pressure. Using two separate fluid volumes, in what is known as a dual gradient drilling (DGD) solution, the hydrostatic well pressure can be reduced by managing the return flow. To separate these volumes and control the mud return, the riser must accommodate a device known as a rotating control device (RCD). The RCD and the well pressure system extends the capabilities of conventional drilling schemes allowing for operations in deeper water and narrower pressure zones. The two volumes are closed off using a sealing element in the RCD, which holds the differential pressure created by the drilling system. The seal operate in a hostile environment resulting in extensive wear originating from abrasive particles, the rotating drillpipe and dynamic forces from the sheltering riser. The abrasion related to friction contact is strongly coupled with the riser and drillpipe contact and prompt the need for a closer analysis of the forces occurring between them. The riser system and RCD is therefore modelled in SIMA/RIFLEX and a dynamic analysis is carried out to obtain the lateral drillpipe/riser contact forces, indirectly finding the forces affecting the seal element. The analysis results indicate that the lateral force is below 4% of the seal element?s clamp force. The force magnitude is modest and will most likely have no significant impact on the operation. However, local forces and vibrations associated with resonance can create undesirable effects, which over time can lead to fatigue damage of the RCD and its subcomponents.Submerged equipment will be sensitive to range of resonance phenomena originating from the rig motions, second-order wave forces, current and vortex induced vibrations. This will encourage a review of the local dynamics and the potential use of riser control. Motivated by this, a finite element model is developed in Matlab/SIMULINK to study this in more detail. In order to de- tect resonance related vibrations, a modal decomposition model is formulated based on the finite element model. Using the modal model, a weighted estimate of the eigen frequencies active in the response can be provided to evaluate the resonance properties of the riser. To obtain a better understanding of the riser system and the control potential, a dynamic analysis of the models is carried out, focusing on low frequent rig/vessel motion. Both models are throughly verified using the commercial program RIFLEX, to ensure the sufficient accuracy. Inspired by the results from the analysis, control strategies based on manipulation of the resonance properties (modal con- trol) of the riser are examined, applied to a riser management system framework. The purpose of modal control is to increase safety margins and the operational economy, e.g. by reducing the time spent suspended because of seal element exchange or the risk for well head fatigue. Four different strategies based on manipulation of tension and position are proposed. Followed by a qualitative evaluation of the practical aspects, indicating that setpoint chasing and tension control are the most effective and attainable strategies available.The main contributions in this thesis are assessment of the lateral contact force associated with a deep water pipe-in-pipe dual gradient riser in the Gulf of Mexico, the development and verification of a extensive riser model using Matlab and SIMULINK, and the formulation of modal riser control for resonance vibrations in deep water drilling risers.
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Xia, Tian. "INVESTIGATION OF DRILLING PERFORMANCE IN CRYOGENIC DRILLING ON CFRP COMPOSITE LAMINATES." UKnowledge, 2014. http://uknowledge.uky.edu/me_etds/36.

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In recent years, there has been a substantial growth in the application of carbon fiber reinforced plastic (CFRP) composite materials in automobile and aerospace industries due to their superior properties such as lightweight, high strength, excellent corrosion resistance, and minimal fatigue concerns. The present study evaluates the drilling performance of woven carbon fiber reinforced plastics under both dry and cryogenic cooling conditions using uncoated solid carbide drill with a through-hole for coolant application. The effects of the cooling conditions and the cutting parameters on drilling performance in drilling CFRP were evaluated in terms of generated thrust force, torque, cutting edge radius, outer corner flank wear, hole quality (including surface roughness, diameter error, roundness, delamination, burr formation, sub-surface quality). Both cooling conditions and cutting parameters were found to influence the thrust force and torque at different levels. The thrust force and the torque are higher in cryogenic cooling under all cutting parameters. In most of the cases, cryogenic drilling gives better bore-hole quality with lower surface roughness, more accurate diameter, less burr generation, better sub-surface quality, etc. Also, the tool-wear rates measured in drilling shows that cryogenic drilling produces less tool-wear than dry drilling does.
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Isaksson, Robert. "Drilling with force feedback." Thesis, Linköping University, Automatic Control, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-20897.

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Industrial robots have been used for a long time in the industry. Despite this thedevelopment of advanced force control system using industrial robots is relativelylimited. Using force controlled robot systems expands the possibility of what canbe done with industrial robots.Previously a force feedback system for a standard industrial robot from ABBhas been developed. The system is developed towards the aircraft industry, where amounted drill machine on the robot has to fulfill the requirements in robot drillingin aircraft structures. This thesis presents experimental results and improvementsof this industrial robot system. Mechanical modifications and tests of a new endeffector are analyzed.

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Sigurjonsson, Kjartan Örn. "Dual gradient drilling simulations." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for petroleumsteknologi og anvendt geofysikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18362.

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The system studied in this thesis is called the Low Rise Return system and uses a partly filled marine drilling riser with a variable mud level which is used control the bottom holes pressure.Initially main components of the Low Riser Return System are listed and explained. Then the performance characteristics of the system are explored. Level movements in riser during level increase and decrease at constant mud pump rates are explained along with the effect of mud pump rate on maximum level increase and decrease rates.A simple simulator is then presented that calculates the bottom hole pressure when pump rates are changed. The simulator includes a function that enables it to simulate lost circulation scenarios.The simulator is used to simulate some preferred scenarios. First a pressure increase and decrease at constant mud pump rates are simulated. Then it is shown how a faster pressure decrease can be achieved by temporarily lowering the mud pump rate. Next simulations are shown where changes in mud level are used to compensate for changes in equivalent circulation density as mud pump rates are changed. Finally simulations are run that demonstrate how mud level can be reduced to cure lost circulation scenarios. Results and lessons learned are then discussed.
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Books on the topic "Drilling"

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Ecole nationale supérieure du pétrole et des moteurs (France), ed. Drilling. Paris: Éditions Technip, 1996.

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Society of Petroleum Engineers of AIME., ed. Drilling. Richardson, TX: Society of Petroleum Engineers, 1987.

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Tainter, Joseph A., and Tadeusz W. Patzek. Drilling Down. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-7677-2.

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Inglis, T. A. Directional Drilling. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-017-1270-5.

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Yilbas, Bekir Sami. Laser Drilling. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-34982-9.

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International, Conference on Drilling Wastes (1988 Calgary Alta). Drilling wastes. London: Elsevier Applied Science, 1989.

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Society of Petroleum Engineers (U.S.), ed. Horizontal drilling. Richardson, TX: Society of Petroleum Engineers, 1991.

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Haerens, Margaret. Offshore drilling. Detroit: Greenhaven Press, 2010.

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Margaret, Haerens, ed. Offshore drilling. Detroit: Greenhaven Press, 2010.

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Drilling machines. Mankato, Minn: Creative Education, 2009.

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Book chapters on the topic "Drilling"

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Corfe, A. G., and R. C. Crafer. "Drilling." In Handbook of the EuroLaser Academy, 523–50. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5297-0_9.

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Heinemann, Robert. "Drilling." In CIRP Encyclopedia of Production Engineering, 1–7. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-642-35950-7_6601-3.

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Walther, Kurt, Mihael Brajdic, and Welf Wawers. "Drilling." In Tailored Light 2, 365–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01237-2_16.

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Erguler, Zeynal Abiddin. "Drilling." In Selective Neck Dissection for Oral Cancer, 1–10. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-12127-7_95-1.

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Heinemann, Robert. "Drilling." In CIRP Encyclopedia of Production Engineering, 528–34. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-53120-4_6601.

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De Bauw, R., E. Millich, J. P. Joulia, D. Van Asselt, and J. W. Bronkhorst. "Drilling." In European Communities Oil and Gas Technological Development Projects, 57–78. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3247-0_2.

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Heinemann, Robert. "Drilling." In CIRP Encyclopedia of Production Engineering, 416–21. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-20617-7_6601.

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Roy, John Scott. "Drilling." In Birddog, 219–20. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0535-4_18.

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Tschätsch, Heinz, and Anette Reichelt. "Drilling." In Applied Machining Technology, 105–45. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01007-1_9.

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Erguler, Zeynal Abiddin. "Drilling." In Encyclopedia of Earth Sciences Series, 235–44. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-73568-9_95.

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Conference papers on the topic "Drilling"

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Ribesen, Bjorn Thore, Kjell Arild Horvei, Tove Magnussen, Arild Saasen, and Tormod Veiberg. "Exploration drilling campaigns - Optimized drilling performance using drilling consortium management." In SPE/IADC Drilling Conference and Exhibition. Society of Petroleum Engineers, 2011. http://dx.doi.org/10.2118/139954-ms.

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Magomed-Rasulovich, Gaidarov Mitalim, Khubbatov Andrey Atlassovich, Gaidarov Azamat Mitalimovich, and Baizakov Marat Korkitovich. "Cation Drilling Mud for Longhole Drilling." In SPE Annual Caspian Technical Conference and Exhibition. Society of Petroleum Engineers, 2014. http://dx.doi.org/10.2118/172251-ms.

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Warren, Tommy, Robert Tessari, and Bruce Houtchens. "Casing Drilling with Retrievable Drilling Assemblies." In Offshore Technology Conference. Offshore Technology Conference, 2004. http://dx.doi.org/10.4043/16564-ms.

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Bland, Ron, Tom Jones, and G. A. Tibbitts. "Reducing Drilling Costs by Drilling Faster." In SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, 1997. http://dx.doi.org/10.2118/38616-ms.

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Lahlou, Kenza, Sven Inge Oedegaard, Morten Svendsen, Tore Weltzin, Knut Steinar Bjørkevoll, and Bjørn Rudshaug. "Drilling Advisory for Automatic Drilling Control." In SPE/IADC International Drilling Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/204074-ms.

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Abstract This paper describes a system being developed for providing an optimized real-time decision support with automatic forward-looking and what-if simulations. It will address the challenge of achieving automation, better performance, and avoidance of non-productive time (NPT) in drilling operations. It will additionally address the demanding human support currently required in the entire decision support workflow. The approach includes utilization of Model based reasoning in Artificial Intelligence (AI) with a Digital Twin combined with Machine Learning (ML) and advanced 3D visualization which is a key enabler for operation alerts and optimization. Multiple forward-looking and what-if simulations will also be run in real-time to find optimal parameters for flow, rotation and running speed. A Diagnostic module will detect abnormalities and trigger safeguards. Auto-configuration and auto-calibration will be the key elements for Drilling Advisory system and deployment without the need for back-office support. The personnel involved in the operation (drilling contractor, service provider and operator) will be able to quickly provide the necessary operational input and then the system will be auto-calibrated during the operation. Results will be an Advisory Tool providing the operation with an optimal flow, rotation speed and running speed during Drilling, Tripping, Casing/liner/screen running and cement operations in two applications areas: In front of the driller as an Advisory tool for rigs with legacy drilling control systems not capable of receiving automated instructions. Base for providing direct commands and safeguards to rigs with control systems capable of receiving automated commands of optimal flow, rotation speed and running speed.
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Giftson Joy, John Abish, and Robello Samuel. "Fast Drilling Optimizer for Drilling Automation." In SPE Western Regional Meeting. SPE, 2021. http://dx.doi.org/10.2118/200881-ms.

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Abstract The rate of penetration (ROP) was optimized using a particle swarm optimization algorithm for real-time field data to reduce drilling time and increase efficiency. ROP is directly related to drilling costs and is a major factor in determining mechanical specific energy, which is often used to quantify drilling efficiency. Optimization of ROP can therefore help cut down costs associated with drilling. ROP values were chosen from real-time field data, accounting for weight on bit, bit rotation, flow rate variation along with bit wear. A random forest regressor was used to find correlations between the dependent parameters. The parameters were then optimized for the given constraints to find the optimal solution space. The boundary constraints for the ROP function were determined from the real-time data. The function parameters were optimized using a particle swarm optimization algorithm. This is a meta-heuristic model used to optimize an objective function for its maximum or minimum within given constraints. The optimization method makes use of a population of solution particles which act as the particle swarm. These particles move collectively in the given solution space controlled by a mathematical model based on their position and velocity. This model makes use of the best-known solution for each particle and the global best position of the system to guide the swarm towards the optimal solution. The function was optimized for each well, providing optimal ROP values during real-time drilling. A fast drilling optimizer is crucial to automate and streamline the drilling process. This simultaneous optimization of ROP based on real-time data can be implemented during the process thereby increasing the efficiency of drilling as well as reducing the required drilling time.
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Farooqui, Shoaib, Iftikhar Hafeez, Sumair Ahmed, Faizan Ahmed, Ibad Siddiqui, and Hammad Attaullah. "Integrated Drilling-Maximize Land Well Drilling Efficiency." In SPE/PAPG Annual Technical Conference. Society of Petroleum Engineers, 2010. http://dx.doi.org/10.2118/142845-ms.

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Allan, P. D. "Nitrogen Drilling System for Gas Drilling Applications." In SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, 1994. http://dx.doi.org/10.2118/28320-ms.

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Magomed-Rasulovich, Gaidarov Mitalim, Khubbatov Andrey Atlassovich, Gaidarov Azamat Mitalimovich, and Baizakov Marat Korkitovich. "Cation Drilling Mud for Longhole Drilling (Russian)." In SPE Annual Caspian Technical Conference and Exhibition. Society of Petroleum Engineers, 2014. http://dx.doi.org/10.2118/172251-ru.

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Ghany, M. M. Abdel, and H. M. El Ahmady. "Drilling Templates for Drilling Before Offshore Installation." In Middle East Oil Show. Society of Petroleum Engineers, 1993. http://dx.doi.org/10.2118/25643-ms.

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Reports on the topic "Drilling"

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Hair. L51725 Drilling Fluids in Pipeline Installation by Horizontal Directional Drilling-Practical Applications. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), October 1994. http://dx.doi.org/10.55274/r0010163.

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Drilling fluid plays a key role in the installation of a pipeline by horizontal directional drilling (HDD) and accounts for the majority of the associated environmental impact. An improper drilling fluid program can result in stuck pipe. Uncontrolled discharge of drilling fluid downhole can damage or undermine adjacent structures.The cost of drilling fluid involved with pipeline installation, particularly when disposal costs are considered, can be substantial. This manual is the principal product of PRC project PR-227-9321. Its purpose is to increase the level of technical sophistication relative to drilling fluids used in the installation of pipelines by Horizontal Directional Drilling (HDD). It is anticipated that this increase will benefit the natural gas industry through reductions in HDD installation costs and environmental impact. The manual contains six sections which address the following general topics: 1 . The HDD installation process, the specific functions of drilling fluids in pipeline installation by HDD, and the composition of drilling fluids; 2. Characteristics of drilling fluid flow, pertinent properties of drilling fluids, and calculation methods relative to drilling fluid flow circuits; 3. Standard classification of soil and rock structures and soil and rock properties relative to drilling fluid flow; 4. The behavior of soil and rock structures relative to drilling fluid flow, general drilling fluid criteria, and general solutions to drilling problems; 5. Methods for estimating drilling fluid quantities, methods for disposing of excess drilling fluids, the environmental impact of drilling fluids used in HDD, and construction specifications relative to drilling fluids; and 6. Materials used drilling fluids.
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Dallimore, S. R., D. Gillespie, F. M. Nixon, and J. Shimeld. Drilling Methods. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1991. http://dx.doi.org/10.4095/132215.

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J.J. Kolle. HydroPulse Drilling. Office of Scientific and Technical Information (OSTI), April 2004. http://dx.doi.org/10.2172/859242.

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Brian C. Gahan and Samih Batarseh. Laser Drilling - Drilling with the Power of Light. Office of Scientific and Technical Information (OSTI), September 2004. http://dx.doi.org/10.2172/894903.

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Brian C. Gahan and Samih Batarseh. Laser Drilling - Drilling with the Power of Light. Office of Scientific and Technical Information (OSTI), September 2005. http://dx.doi.org/10.2172/895927.

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Iraj A. Salehi, Brian C. Gahan, and Samih Batarseh. Laser Drilling - Drilling with the Power of Light. Office of Scientific and Technical Information (OSTI), February 2007. http://dx.doi.org/10.2172/926665.

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Mudie, P. J., H. R. Jackson, and S. M. Blasco. Ocean Drilling Program Proposal For Arctic Ocean Drilling. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1988. http://dx.doi.org/10.4095/128175.

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Myers, D. A. Activity plan: Directional drilling and environmental measurements while drilling. Office of Scientific and Technical Information (OSTI), July 1998. http://dx.doi.org/10.2172/344968.

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Raymond, David W., Douglas A. Blankenship, Stephen Buerger, Mikhail Mesh, William Thomas Radigan, and Jiann-Cherng Su. Active Suppression of Drilling System Vibrations For Deep Drilling. Office of Scientific and Technical Information (OSTI), October 2015. http://dx.doi.org/10.2172/1225847.

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Pierce, K. G., J. T. Finger, and B. J. Livesay. Advanced drilling systems. Office of Scientific and Technical Information (OSTI), December 1995. http://dx.doi.org/10.2172/226390.

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