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Keywords: hydraulic fracturing
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1917
... ABSTRACT: During the hydraulic fracturing process, the fracturing fluids can infiltrate into the shale porous matrix surrounding the fractures by spontaneous imbibition. However, the pores in shale oil reservoirs mainly range from 2 to 200 nm. For the nanoscale pore network, the fluid-solid...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1923
... particle reservoir characterization upstream oil & gas tunnel boundary hydraulic fracturing displacement displacement zone high dip angle synthetic rock mass dip angle right sidewall rock mass displacement distribution reservoir simulation sidewall mechanical behavior crown tunnel...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1928
... of the stress. Improvements in the toolstring were introduced step by step to enable 100% coverage of the desired lithological column. For example, this is the first time that a single toolstring with three packers has been run to perform the complete combination of sleeve fracturing, hydraulic fracturing...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1941
... ABSTRACT: The exploitation of ultra-deep hydrocarbon resources has gained considerable care in recent decades, which requires hydraulic fracturing to achieve economical hydrocarbon productivity. It is relatively infeasible to obtain cubic formation rocks for triaxial hydraulic fracturing test...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1942
... ABSTRACT: The limited reference and method holds back the reevaluation of post-frac effect for shale gas wells in China, as microseismic monitoring and production profile monitoring treatment are not always conducted. Based on real-time hydraulic fracturing data of a deep buried shale gas...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1945
... ABSTRACT: For most shale gas wells, there is always no micro-seismic monitoring or producing profile test. Therefore, a comprehensive workflow was established to evaluate the post-frac effect. Firstly, based on hydraulic fracturing data, such as sand fluid ratio, fluid volume, etc., SF (shale...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1959
... ABSTRACT: One of the parameters that govern the interaction between hydraulic fractures (HF) and natural fractures (NF) is the coefficient of friction between the two NF-surfaces (Gu and Weng, 2010). Therefore, the characterization of natural fractures is important when analyzing this type...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1961
... cataloged events from 2013–2019 (Pena Castro et al., 2020). On November 30, 2018 an earthquake sequence initiated during hydraulic fracturing operations in the Septimus region of the Montney play. The ML 4.5 mainshock was followed by three significant aftershocks, measuring ML 4.3, ML 3.6, and ML 2.7...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1233
... into the rock formation nearby. casing and cementing displacement reservoir geomechanics element method experiment hydraulic fracturing casing pressure mpa hollow cylinder interface different material fracture reservoir characterization upstream oil & gas simulation tensile stress...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1248
... ABSTRACT: Hydraulically fractured well productivity greatly depends on fracture conductivity, which itself is dictated by proppant transport and placement. To guide engineering design and evaluate performance of proppant placement, a full understanding of the underlying physics and robust...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1265
.... wellbore design hydraulic fracturing specimen size strength reservoir geomechanics size effect reservoir characterization upstream oil & gas equilibrium specimen bond strength incident bar stress rate rock specimen strain rate fakhimi particle model numerical result equation loading...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1267
... forward to simulate the effect of hydraulic fracturing fluid on flow back of shale gas wells, and main controlling factors affecting flow back rate and production are analyzed. Simulation result demonstrates that gel breaking liquid mainly flow through main fractures, and then in adjacent secondary...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1303
... to estimate stress-dependent permeability with different natural fracture patterns. 1. Introduction Tight sandstone reservoirs with natural fractures tend to develop petroleum resources more efficiently and have a favorable prospect especially in the process of the hydraulic fracturing treatment. However...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1310
... revisit François's main scientific contributions to the geomechanics and geophysics communities. His main research interests spanned many topics: hydraulic fracturing and in situ stress measurements, understanding and modeling of regional stress fields, induced and natural seismicity, rock-fluid...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1315
... characteristics, permeability evolution, and fracture stability on parameters dictating the strength of coupling between geomechanics, flow, and transport. 1. Introduction Applications of fluid injection into naturally or hydraulically fractured reservoirs are evident in many engineering disciplines: carbon...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1318
... the deformation characteristics of tortuous micro-fractures; stress concentration mainly occurs at the corners of the fractures and effective areas with smaller fracture widths. 1. Introduction Hydraulic fracturing is currently the main oil and gas stimulation measure. Micro-fractures are widespread...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1321
...: arresting, diverting, branching and crossing. Furthermore, hydraulic fractures tended to cross the weak plane and then connected with the adjacent layer under small vertical stress difference and large horizontal stress difference. In addition, Complex natural fracture network contributed to fracture...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1323
... by proppant properties. 1. Introduction At present, hydraulic fracturing provides an essential solution to shale reservoir stimulation (Bandara et al., 2020; Lu et al., 2020). Large-scale low viscosity slick water and relatively low concentration proppant are pumped into shale formations to construct...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1340
... principal stress responses caused by stochastic hydraulic fracture properties at two prospective infill locations. The hydraulic fracture parameters including fracture half-length, width and height are varied stochastically within a set range of different ‘small-to-large’ ratios. Numerical results show...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1355
... ABSTRACT: Cryogenic nitrogen is a promising hydraulic fracturing fluid with high cracking efficiency for tight formation reservoir. Predicting the temperature field in wellbore accurately is of great importance for the feasibility evaluation and parameters design of cryogenic fracturing...

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