Littérature scientifique sur le sujet « Stress and fracturing field »

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Articles de revues sur le sujet "Stress and fracturing field"

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Liu, Honglei, Jiangling Hong, Wei Shu, et al. "Study on Evolution of Stress Field and Fracture Propagation Laws for Re-Fracturing of Volcanic Rock." Processes 13, no. 8 (2025): 2346. https://doi.org/10.3390/pr13082346.

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In the Kelameili volcanic gas reservoir, primary hydraulic fracturing treatments in some wells take place on a limited scale, resulting in a rapid decline in production post stimulation and necessitating re-fracturing operations. However, prolonged production has led to a significant evolution in the in situ stress field, which complicates the design of re-fracturing parameters. To address this, this study adopts an integrated geology–engineering approach to develop a formation-specific geomechanical model, using rock mechanical test results and well-log inversion to reconstruct the reservoir’
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Zhang, Lin-Peng, Tuan Gu, Bin Li, and Peng Zheng. "Research on the Interaction Mechanism of Multi-Fracture Propagation in Hydraulic Fracturing." Processes 12, no. 5 (2024): 1040. http://dx.doi.org/10.3390/pr12051040.

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During the hydraulic-fracturing process, stress interference occurs among multiple wells and fractures, potentially affecting the trajectory of hydraulic fracture propagation. Previous studies have largely overlooked the influence of proppant support stresses on the trajectories of fracture propagation. This paper establishes a mathematical model, grounded in the boundary element method, designed to compute the propagation of multiple fractures, considering both proppant support on the fracture surface and dynamic perturbations within the local stress field. The findings of this research revea
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Feng, Yan Jun, and Xiu Wei Shi. "Hydraulic Fracturing Process: Roles of In Situ Stress and Rock Strength." Advanced Materials Research 616-618 (December 2012): 435–40. http://dx.doi.org/10.4028/www.scientific.net/amr.616-618.435.

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This paper presents results of a comprehensive study involving analytical and field experimental investigations into the factors controlling the hydraulic fracturing process. Analytical theories for fracture initiation of vertical and horizontal borehole are reviewed. The initiation and propagation process of hydraulic fracturing is performed in the field by means of hydraulic fracturing and stepwise hydraulic fracturing, the effect of factors such as in-situ stress and rock strength on fracture propagation process is studied and discussed. The fracture initiation pressures estimated from the
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Zhao, Wan Chun, Chen Wang, Ting Ting Wang, and Bing Guan. "Calculation Model Study on Damaging Stress of Hydraulically Created Fracture Propagation." Applied Mechanics and Materials 275-277 (January 2013): 238–41. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.238.

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In order to describe hydraulically created fracture propagation’s characteristics of rock matrix exactly, in this paper, establishing a stress field ‘s calculation model of fracturing propagation tip , obtaining numerical method of fracturing propagation’s characteristics based on damaging and describing fracturing propagation’s characteristics combined with method of finite element. Research shows that the corrigendum between stress field ‘s calculation model of fracturing propagation tip and practical engineering are 0.64 percent and 1.43 percent respectively. Compared with the traditional m
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Wang, Shuanlin, and Jianqiao Luo. "Study on the Shadow Effect of the Stress Field around a Deep-Hole Hydraulic-Fracturing Top-Cutting Borehole and Process Optimization." Processes 11, no. 2 (2023): 367. http://dx.doi.org/10.3390/pr11020367.

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The clean utilization and green development of coal resources have become a research focus in recent years. Underground hydraulic fracturing technology in coal mines has been widely used in roof pressure relief, top coal pre-splitting, gas drainage, roadway pressure relief and goaf disaster prevention. Different in situ stress types cause great differences in the stress field around the boreholes, the critical pressure of the fracture initiation, and the direction of the fracture expansion trend; in addition, the stress shadow effect generated by the superposition of stress fields between bore
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Zeng, Zhengwen. "Frac-n-Flow Testing to Screen Brittle Fracture Stages in Wolfcamp Formation, Permian Basin, USA." Energies 14, no. 17 (2021): 5450. http://dx.doi.org/10.3390/en14175450.

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A new technique, fracturing-and-flowing (frac-n-flow) testing, is introduced for horizontal drilling and multistage hydraulic fracturing (HDMHF) practitioners to check if the next stage would be a brittle fracture using the instantaneous shut-in pressure (ISIP) from the current stage. It was developed to reduce the number of not-flowing clusters in HDMHF treatments due to stress shadows in the development of tight oil reserves in Wolfcamp, Permian Basin, USA, and other similar fields. Preliminary frac-n-flow testing results show that a medium (200–1000 psi) increase in confining pressure under
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Chang, Muhsiung, and Ren-Chung Huang. "Observations of hydraulic fracturing in soils through field testing and numerical simulations." Canadian Geotechnical Journal 53, no. 2 (2016): 343–59. http://dx.doi.org/10.1139/cgj-2015-0193.

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Hydraulic fracturing is a potential cause of leakage of earth dams or loss of fluid in drilling and field permeability testing. The effect of hydraulic fracturing on soil grouting is also a major concern. Although hydraulic fracturing has been adopted for decades by the petroleum industry for oil recovery in rock formations, studies on fracturing in soils are relatively few and inconclusive. The aim of this study is to provide further insight into the mechanism of hydrofracturing in soils through a field grouting trial and numerical simulation. We observe hydraulic fracturing in soils during t
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Meng, Wei, and Chuan He. "Back Analysis of the Initial Geo-Stress Field of Rock Masses in High Geo-Temperature and High Geo-Stress." Energies 13, no. 2 (2020): 363. http://dx.doi.org/10.3390/en13020363.

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In a high geo-temperature environment, it is rarely reported that geo-temperature has been considered during a back analysis. This may cause the initial geo-stress field that is obtained by a back analysis to be wrong. In this study, according to the theory of elasticity, the theoretical solution of the hydraulic fracturing equation is obtained in a high geo-temperature environment. Since the vertical stress that is obtained by the hydraulic fracturing method is calculated using the density of overlying strata, this vertical stress lacks the thermal stress that is caused by geothermal gradient
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Zhang, Hao-yu, Jun-bin Chen, and Yang Wang. "An XFEM-based CZM Numerical Strategy for Modeling Hydraulic Fracture Propagation under Different Fracturing Schemes." Journal of Physics: Conference Series 2594, no. 1 (2023): 012025. http://dx.doi.org/10.1088/1742-6596/2594/1/012025.

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Abstract Segmented and cluster fracturing can improve the efficiency of volume stimulation in shale reservoirs and reduce construction costs. It is important to clarify the propagation characteristics of hydraulic fractures and stress interference under different fracturing techniques to optimize the process of clustered and staged fracturing. For this purpose, we have developed a 2D XFEM-based CZM hydraulic fracturing model. The capability of this model was validated by analytical solutions and then used to study the propagation paths of hydraulic fractures and the characteristics of stress i
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Lu, Cong, Li Ma, Jianchun Guo, et al. "Fracture Parameters Optimization and Field Application in Low-Permeability Sandstone Reservoirs under Fracturing Flooding Conditions." Processes 11, no. 1 (2023): 285. http://dx.doi.org/10.3390/pr11010285.

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To solve engineering problems in the production process after fracturing and flooding of low-permeability sandstone reservoirs, such as rapid water-cut rise and low water flooding efficiency, a method for optimizing the fracture parameters of low-permeability sandstone reservoirs under fracturing flooding conditions was proposed. A rock property test experiment was first carried out, the fracturing coefficient was defined, and an evaluation method for the brittleness index of low-permeability sandstone was established to optimize the perforation location of the fracturing reservoir. A producti
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Thèses sur le sujet "Stress and fracturing field"

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Robeck, Eric Dean. "The effects of fault-induced stress anisotropy on fracturing, folding and sill emplacement : insights from the Bowie coal mines, southern Piceance basin, western Colorado /." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd760.pdf.

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Charsley, Andrew Darrin. "Interpretation of sleeve fracturing for stress measurement." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0010/MQ61252.pdf.

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Kim, Kwangmin. "Rock Fracturing & Mine to Mill Optimization." Diss., The University of Arizona, 2012. http://hdl.handle.net/10150/242456.

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The research presented in this dissertation consists of four topics. The first of these topics is an experimental study of rock fracturing due to rapid thermal cooling, and the other three topics are related to mine-to-optimization. This includes the development and testing of a site-specific model for blast fragmentation, the development of a technique for utilizing digital image processing and ground-based LIDAR for rock mass characterization, and an experimental study of the effects of ore blending on mineral recovery. All four topics are related through the subject of rock fracturing a
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Tang, Yin-tong. "Rock stress determination in Hong Kong Island by using hydraulic fracturing method /." View the Table of Contents & Abstract, 2005. http://sunzi.lib.hku.hk/hkuto/record/B36357625.

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Tang, Yin-tong, and 鄧燕棠. "Rock stress determination in Hong Kong Island by using hydraulic fracturing method." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B45014322.

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Anyanwu, Ezechukwu John. "Low Alloy Steel Susceptibility to Stress Corrosion Cracking in Hydraulic Fracturing Environment." University of Dayton / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1398948610.

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nn, Arthur Glenn Arthur. "Microseismicity in the Ekofisk field : faulting and fracturing in a compacting chalk reservoir." Thesis, University of Bristol, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.551325.

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Passive microseismic monitoring provides a non-invasive method of monitoring deformation and changes in the stress distribution within a rock mass. Recently the petroleum industry has applied and focussed such studies on the monitoring of hydraulic fracturing stimulation: the fracturing of a reservoir by the injection of a high pressure fluid into reservoir causing the rock to fracture, increasing the permeability. However, the development of passive seismic monitoring of a fully operational oil field has been slow largely due to economic constraints limiting the geophone array to be deployed
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Stafford, Catherine Elizabeth. "An experimental study of the compaction and creep behaviour of oolitic sands." Thesis, University College London (University of London), 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312997.

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Du, Jing. "Geophysical inversion of far-field deformation for hydraulic fracture and reservoir information /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.

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Dölle, Michael. "Field effect transistor based CMOS stress sensors /." Tönning ; Lübeck Marburg : Der Andere Verlag, 2006. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=016086105&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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Livres sur le sujet "Stress and fracturing field"

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Charsley, Andrew Darrin. Interpretation of sleeve fracturing for stress measurement. Mineral Resources Engineering, Laurentian University, 2000.

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Rundle, T. A. In-situ stress measurements in the earth's crust in the Eastern United States. The Commission, 1987.

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Zang, Arno, and Ove Stephansson. Stress Field of the Earth’s Crust. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-1-4020-8444-7.

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Ove, Stephansson, and SpringerLink (Online service), eds. Stress Field of the Earth’s Crust. Springer Science+Business Media B.V., 2010.

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S, Piascik Robert, and Langley Research Center, eds. A back face strain compliance expression for the compact tension specimen. National Aeronautics and Space Administration, Langley Research Center, 1998.

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C, Haimson Bezalel, China. Guo jia di zhen ju, University of Wisconsin--Madison, and Stanford University, eds. In-situ strees project, technical report number 6: Results of hydraulic fracturing stress measurements at Jianchuan, western Yunnan Province, China. Dept. of the Interior, U.S. Geological Survey, 1987.

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Choudhury, Shuvasish, and Debojyoti Moulick. Response of Field Crops to Abiotic Stress. CRC Press, 2022. http://dx.doi.org/10.1201/9781003258063.

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J, Ader Mark, and Geological Survey (U.S.), eds. In-situ stress project technical report number 7: The use of mechanical pressure and temperature gauges in hydraulic fracturing at the Cajon Pass well, California. Dept. of the Interior, U.S. Geological Survey, 1987.

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J, Ader Mark, and Geological Survey (U.S.), eds. In-situ stress project technical report number 7: The use of mechanical pressure and temperature gauges in hydraulic fracturing at the Cajon Pass well, California. Dept. of the Interior, U.S. Geological Survey, 1987.

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J, Ader Mark, and Geological Survey (U.S.), eds. In-situ stress project technical report number 7: The use of mechanical pressure and temperature gauges in hydraulic fracturing at the Cajon Pass well, California. Dept. of the Interior, U.S. Geological Survey, 1987.

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Chapitres de livres sur le sujet "Stress and fracturing field"

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Zhao, Yu, Yongfa Zhang, and Pengfei He. "Fracture Initiation." In Hydraulic Fracturing and Rock Mechanics. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-2540-7_6.

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AbstractField in-situ constant-flow hydraulic fracturing test is an important technique to determine the tectonic stress field. Classical hydraulic fracturing mechanics regards the maximum tensile stress criterion as the critical initiation condition, which assumes that the hydraulic fracture initiates and expands when the maximum effective tangential stress around the wellbore is larger than the tensile strength of the rock, resulting in tensile failure of the rock.
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Zhao, Yu, Yongfa Zhang, and Pengfei He. "Fracture Propagation." In Hydraulic Fracturing and Rock Mechanics. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-2540-7_7.

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AbstractIn previous theories regarding hydraulic fracture propagation, it is usually assumed the fluid pressure within the hydraulic fracture is constant in the calculation of the surrounding stress field. The actual fluid pressure during fracturing process, however, is often fluctuating, due to the disturbance of the irregular surface of rock fracture and the viscous flow of fracturing fluid.
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Zhu, Changxu, Yue Tao, Yi Wang, and Xiaohua Zhou. "Analysis of the ground stress field before repeated fracturing in fractured reservoirs." In Advances in Energy Materials and Environment Engineering. CRC Press, 2022. http://dx.doi.org/10.1201/9781003332664-61.

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Ren, Jia-wei, Qi-hong Feng, Xian-min Zhang, and Ze-hao Xie. "Fracturing Spacing Optimization Study of Tight Oil Horizontal Well Based on Induced Stress Field." In Springer Series in Geomechanics and Geoengineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0761-5_95.

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Rao, Jia-fu, Bo Li, Xue-feng Chen, et al. "Study on the Variation Characteristics of Temperature and Stress Field of Liquid Nitrogen Fracturing Granite." In Springer Series in Geomechanics and Geoengineering. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-4528-2_30.

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Eringen, A. Cemal. "Stress." In Microcontinuum Field Theories. Springer New York, 1999. http://dx.doi.org/10.1007/978-1-4612-0555-5_2.

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Pei, Yuxin, Lifei Shao, Daqi Fu, et al. "Successful Application of Self-propping Fracturing Fluid System in Volume Fracturing of Tight Reservoir." In Proceedings of the International Field Exploration and Development Conference 2021. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2149-0_509.

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Zang, Arno, and Ove Stephansson. "Global Stress." In Stress Field of the Earth’s Crust. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-1-4020-8444-7_11.

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Zang, Arno, and Ove Stephansson. "Stress Definition." In Stress Field of the Earth’s Crust. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-1-4020-8444-7_2.

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Zheng, Wei-shi. "Fracture Research of Liquid Carbon Dioxide Fracturing." In Proceedings of the International Field Exploration and Development Conference 2021. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2149-0_146.

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Actes de conférences sur le sujet "Stress and fracturing field"

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Dong, Zhihong, Wentao Ning, Sheng Luo, Ping Fu, Pengyun Guo, and Bin Wang. "Analysis of stress field characteristics of a certain pumped storage power station based on hydraulic fracturing test." In Fifth International Conference on Green Energy, Environment, and Sustainable Development, edited by Mohammadreza Aghaei, Hongyu Ren, and Xiaoshuan Zhang. SPIE, 2024. http://dx.doi.org/10.1117/12.3044821.

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Weng, Xiaowei, and Eduard Siebrits. "Effect of Production-Induced Stress Field on Refracture Propagation and Pressure Response." In SPE Hydraulic Fracturing Technology Conference. Society of Petroleum Engineers, 2007. http://dx.doi.org/10.2118/106043-ms.

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Wang, Shize, Zhaoliang Wu, Rugang Liao, et al. "The Application of Numerical Simulation Stress Field in Shale Fracture Diagnostics." In SPE Asia Pacific Hydraulic Fracturing Conference. Society of Petroleum Engineers, 2016. http://dx.doi.org/10.2118/181846-ms.

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Zhang, Jianguo, Karthik Mahadev, Stephen Edwards, and Alan Rodgerson. "A Novel Method and its Application to Define Maximum Horizontal Stress and Stress Path." In SPE Hydraulic Fracturing Technology Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/204148-ms.

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Abstract Maximum horizontal stress (SH) and stress path (change of SH and minimum horizontal stress with depletion) are the two most difficult parameters to define for an oilfield geomechanical model. Understanding these in-situ stresses is critical to the success of operations and development, especially when production is underway, and the reservoir depletion begins. This paper introduces a method to define them through the analysis of actual minifrac data. Field examples of applications on minifrac failure analysis and operational pressure prediction are also presented. It is commonly accep
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Aadnoy, B. S. "Inversion Technique To Determine the In-Situ, Stress Field From Fracturing Data." In SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, 1988. http://dx.doi.org/10.2118/18023-ms.

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Bryant, Eric C., Jongsoo Hwang, and Mukul M. Sharma. "Arbitrary Fracture Propagation in Heterogeneous Poroelastic Formations Using a Finite Volume-Based Cohesive Zone Model." In SPE Hydraulic Fracturing Technology Conference. SPE, 2015. http://dx.doi.org/10.2118/spe-173374-ms.

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Abstract A finite volume-based arbitrary fracture propagation model is used to simulate fracture growth and geomechanical stresses during hydraulic fracture treatments. Single-phase flow, poroelastic displacement, and in-situ stress tensor equations are coupled within a poroelastic reservoir domain, using a fixed-strain split assumption. The domain is idealized as two-dimensional and plane-strain, with heterogeneous elastic material and fracture toughness properties. Fracture propagation proceeds by failure along finite volume cells in excess of a threshold effective stress. The cohesive zone
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Franquet, Javier Alejandro, Viraj Nitin Telang, Hayat Abdi Ibrahim Jibar, and Karem Alejandra Khan. "Multiple In-Situ Stress Measurements in Carbonate Reservoirs for CO2 Injection Capability Assessment and Far-Field Strain Calibrations." In SPE International Hydraulic Fracturing Technology Conference & Exhibition. SPE, 2022. http://dx.doi.org/10.2118/205261-ms.

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Abstract The scope of this work is to measure downhole fracture-initiation pressures in multiple carbonate reservoirs located onshore about 50 km from Abu Dhabi city. The objective of characterizing formation breakdown across several reservoirs is to quantify the maximum gas and CO2 injection capacity on each reservoir layer for pressure maintenance and enhance oil recovery operations. This study also acquires pore pressure and fracture closure pressure measurements for calibrating the geomechanical in-situ stress model and far-field lateral strain boundary conditions. Several single-probe pre
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Zeng, Bo, Xiaoxu Ren, Haoyong Huang, et al. "Stress Barrier Characterization and Application for Engineering Sweet Spot Prediction in Deep Shale Gas Reservoirs." In SPE Advances in Integrated Reservoir Modelling and Field Development Conference and Exhibition. SPE, 2025. https://doi.org/10.2118/225288-ms.

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Abstract The presence of stress barriers significantly influences the extension of hydraulic fracturing networks and the volume of reservoir stimulation. In the southern Sichuan Basin, deep shale gas reservoirs, particularly those in the Longmaxi formation, exhibit strong anisotropy and heterogeneity. These reservoirs are characterized by high pore pressure, multi-level faults and fractures, and complex in-situ stress conditions, which collectively pose challenges in accurately characterizing stress barriers. This study aims to develop a high-resolution, three-dimensional geomechanical model t
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Lecampion, B., J. Desroches, X. Weng, J. Burghardt, and J. E. E. Brown. "Can We Engineer Better Multistage Horizontal Completions? Evidence of the Importance of Near-wellbore Fracture Geometry from Theory, Lab and Field Experiments." In SPE Hydraulic Fracturing Technology Conference. SPE, 2015. http://dx.doi.org/10.2118/spe-173363-ms.

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Abstract There is accepted evidence that multistage fracturing of horizontal wells in shale reservoirs results in significant production variation from perforation cluster to perforation cluster. Typically, between 30 and 40% of the clusters do not significantly contribute to production while the majority of the production comes from only 20 to 30% of the clusters. Based on numerical modeling, laboratory and field experiments, we investigate the process of simultaneously initiating and propagating several hydraulic fractures. In particular, we clarify the interplay between the impact of perfor
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McClure, Mark W., Mohsen Babazadeh, Sogo Shiozawa, and Jian Huang. "Fully Coupled Hydromechanical Simulation of Hydraulic Fracturing in Three-Dimensional Discrete Fracture Networks." In SPE Hydraulic Fracturing Technology Conference. SPE, 2015. http://dx.doi.org/10.2118/spe-173354-ms.

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Abstract We developed a hydraulic fracturing simulator that implicitly couples fluid flow with the stresses induced by fracture deformation in large, complex, three-dimensional discrete fracture networks. The simulator can describe propagation of hydraulic fractures and opening and shear stimulation of natural fractures. Fracture elements can open or slide, depending on their stress state, fluid pressure, and mechanical properties. Fracture sliding occurs in the direction of maximum resolved shear stress. Nonlinear empirical relations are used to relate normal stress, fracture opening, and fra
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Rapports d'organisations sur le sujet "Stress and fracturing field"

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Larochelle, S., Y. Liu, and H. Kao. Poroelastic modeling of hydraulic fracturing induced earthquake stress field. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2016. http://dx.doi.org/10.4095/297811.

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Wemple, R. P., and D. B. Longcope. Thermal stress fracturing of magma simulant materials. Office of Scientific and Technical Information (OSTI), 1986. http://dx.doi.org/10.2172/7049178.

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Raymond L. Mazza. FIELD TESTING & OPTIMIZATION OF CO2/SAND FRACTURING TECHNOLOGY. Office of Scientific and Technical Information (OSTI), 2004. http://dx.doi.org/10.2172/837843.

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McLellan, P. In - Situ Stress Magnitudes From Hydraulic Fracturing Treatment Records: a Feasibility Study. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/130531.

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Mukul M. Sharma. ADVANCED FRACTURING TECHNOLOGY FOR TIGHT GAS: AN EAST TEXAS FIELD DEMONSTRATION. Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/861428.

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DeGiorgi, Virginia G. Stress Field Variations during Dynamic Loading. Defense Technical Information Center, 1991. http://dx.doi.org/10.21236/ada242121.

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Wilmer, R., N. R. Warpinski, T. B. Wright, P. T. Branagan, and J. E. Fix. Application of microseismic technology to hydraulic fracture diagnostics: GRI/DOE Field Fracturing Multi-Sites Project. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/70173.

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Girrens, S. P., J. G. Bennett, and D. M. Murphy. Poloidal field coil stress analysis for the ZTH machine. Office of Scientific and Technical Information (OSTI), 1988. http://dx.doi.org/10.2172/6986062.

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Mondragon, Tomas, Jeffrey Allen, Reena Patel, and Oliver-Denzil Taylor. Comparison of numerical simulations of heat-induced stress in basalt. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/49191.

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Energy losses due to excessive noise and heat are primary liabilities in traditional mining processes. Some of the currently researched methods to improve these liabilities involve heating the rock to induce internal stress fractures that make it easier to extract or remove rock with traditional mining equipment. Physical experimentation has yielded useful data that have been applied to numerical simulations of the heating and fracturing of rock, and multiple such simulations have been developed in the commercial multiphysics simulator COMSOL. Since COMSOL is not widely available on DoD high-p
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Watson, Mark, Martyn Wilmott, and Brian Erno. GRI-96-0452_2 Stress Corrosion Cracking Under Field Simulated Conditions II. Pipeline Research Council International, Inc. (PRCI), 1997. http://dx.doi.org/10.55274/r0011974.

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The pH of solutions found under disbonded polyethylene tape coatings in the field is generally in the range of 6.5 to 7.5. Electrochemically determining corrosion rates for pipeline steels exposed to neutral pH solutions in this pH range indicate that corrosion rates are too low to account for the observed crack growth rates from field excavation programs. This suggests that for the SCC process to be based on a simple dissolution mechanism then the pH at the crack tip would have to be lower than the bulk solution pH. A computer model was developed to determine solution chemistry changes within
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