... include developing a thermally stable WBM, inhibiting shale instability problems, mitigating barite sagging, being environmentally friendly and determining the maximum open hole extension limit for ERW using the hydraulic Herschel-Bulkley rheological model coupled with geomechanics. The laboratory...

... geologist fracture hydraulic fracturing reservoir characterization displacement displacement discontinuity inter-well frac expansion evolution extension propagation fracture boundary interference complex reservoir shale gas geological subdiscipline breakthrough perforation technology...

... fracture propagation coefficient equation mpa extension strength ARMA 24 0308 Investigation on mechanical test and fracture propagation for deep coal Jiayuan He, Xiaolong Li. SINOPEC Petroleum Exploration & Production Research Institute, Beijing, China Lei Wang. School of petroleum engineering...

... ABSTRACT In this paper, a distributed fiber-optic monitoring system is used to finely portray the effect of gravel on crack extension during a true triaxial physical simulation experiment. The experimental results show that under the control of stress difference, the obstruction effect...

... of the three principal incremental strains: maximum extensional principal strain (d1), the intermediate principal strain (d2), and maximum shortening principal strain (d3), where d1>d2>d3 (extension reckoned positive). 2. A scalar parameter D, which is formed by a ratio of the differences in the principal...

... to postpone the bottom-water-coning effect by meticulous hydraulic fracturing design and operation parameters optimization. Temporary plugging could be a potential solution for controlling hydraulic fracture extension in the vertical direction. This paper proposed a basal water-avoiding hydraulic fracturing...

...) compression, axisymmetric (conventional triaxial) extension, and multiaxial strength tests. The data are fitted to linear and nonlinear failure criteria: Paul-Mohr-Coulomb (PMC), a generalized linear criterion containing all three principal stresses; Hoek-Brown, a popular nonlinear criterion containing major...

... displacement evolution matrix propagation extension lateral boundary mpa ARMA 22-0324 Numerical implementation of a cohesive zone element coupled with continuum damage mechanics volume elements Haozhou He and Chloé Arson Georgia Institute of Technology, Atlanta, Georgia, United States Copyright 2022...

...). complex reservoir production monitoring upstream oil & gas production logging fracture propagation horizontal stress fracture reservoir surveillance fiber acoustic sensing extension zhang spe journal low-frequency information hydraulic fracturing production control fracture geometry...

... are investigated along different stress paths, respectively with constant mean stress (CMS) and constant radial stress (CRS). For CMS testing, a cycle of triaxial compression and extension is performed. It is shown that P-wave velocity gradually reduced at the stage of triaxial compression and reversing the stress...

... for the final extension of axisymmetric hydraulic fractures created by a local pressure pulse in the wellbore. Analytic equations explicitly specify the relationship between mechanical properties of the rock formation, in-situ stress conditions, parameters of the wellbore energy source generating the pressure...

... ABSTRACT: In order to reveal the influence of horizontal bedding and high-angle natural fracture on vertical extension and geometry of hydraulic fractures in shale reservoir, and provide technical support for vertical depth optimization of horizontal Wells and fracturing technology selection...

..., vertical extension and slipping. Symmetrical natural fracture around the wellbore helped to increase the fracture height extension. When natural fractures distributed asymmetrically, the hydraulic fracture showed obvious single wing crack. The hydraulic fracture tended to activate the natural fracture...

... hydraulic fracturing Upstream Oil & Gas coal rock Simulation liulin block coal bed methane complex reservoir natural language coalbed methane fracture length microseismic monitoring cleat fracture morphology fracture effective fracture length high-rank coal rock extension natural...

... strength data mining Martin international journal excavation Diederich Rock mechanics brittleness index Kaiser Indicator Hajiabdolmajid structural geology brittle behavior rock mass strength rock mass equivalent plastic strain mobilization extension plastic strain field stress ARMA 18...

... fracture acid fluid horizontal principal stress maximum horizontal reservoir geomechanics acid wormhole acid wormhole acid solution Reservoir Characterization Upstream Oil & Gas fracture geometry principal stress propagation diameter extension main fracture fracture ARMA 18 1260...

... half-length Modeling & Simulation Fluid Dynamics crack growth evolution Magnitude ductility enhancement in-situ stress propagation extension principal stress deformation crack length brittleness index fracture permeability ARMA 18 0187 A Novel Approach for Studying Hydraulic...

... exception is Seedsman (2011) who used a brittle-failure criterion that identifies a reduced strength extensional zone, to provide input for the design roof support in Australian coal mines. Fig. 6. Extension fracturing in a shale rock sample from a coal mine. Photo by Michael Murphy, NIOSH. The authors...

... propagation. Data show that fracture width does not increase monotonously with hydraulic fracture extension in the process of hydraulic fracturing. It fluctuates within a certain range along with the fracture extension. Upstream Oil & Gas experiment specimen pressure fluctuation prefabricated...

... extension on the size and shape of process zone are investigated. Introduction Fracture process zone (FPZ) is a region around a crack tip in quasi-brittle materials that is made of several damaged points and micro-cracks. This nonlinear region causes deviation of the material behavior from...