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Keywords: fracture surface
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1680
...)(Zhai et al., 2018). shale gas fracturing fluid roughness hydraulic fracturing structural geology composition mechanism characteristic fracturing materials complex reservoir mineral content immersion compression experiment brittleness step-like feature fracture surface failure...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1323
... ABSTRACT: The accurate access to fracture conductivity plays a critical role in shale fracturing optimization. Shale is characterized by complex mineral composition, well-developed bedding, and rougher fracture surface after fracturing, which presents a huge challenge to the repeatability...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1818
... is that the fracture surface supporting body does not break during the production process, so that the fracture maintains a certain opening and have sufficient conductivity. Therefore, it is particularly important to study the failure mechanism of supporting body for unpropped fracture. In this paper, the outcrop core...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1825
... and magnitude of microseismic events at the casing deformation points are observed, and the fracture surface model is established. The quantitative relationship among casing deformation, fracture zone scale and microseismic moment is analyzed by using the model. There were 9 deformation values, among which...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1326
... is used to repeatedly produce artificial carbonate rock samples that are consistent with the natural fracture surface morphology, and the acid injection parameters are controlled to perform single-factor acid etching tests. The initial roughness of different fracture surfaces and the effect of acid...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1967
... representation eg reservoir time scale injection mesh thermo-hydro-mechanical effect fracture eg system fracture surface reservoir ARMA 21 1967 Three-dimensional explicit fracture representation to better understand thermo-hydro-mechanical effects in enhanced geothermal reservoirs Furtney, J. K...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0266
..., the elastic-plastic deformation model of self-propped fracture is established. Then, through the deformation model solution, the contact state of the fracture surface is analyzed, the deformation and stress of the fracture are calculated, and the model of fracture flow channel under different closure stresses...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0470
... ABSTRACT: X-ray CT is often used in the laboratory for the non-destructive observation of rock fracture shapes. However, the measurement accuracy of X-ray CT is unclear. The aim of this research is to grasp measurement accuracy of the fracture surface roughness by X-ray CT. A cylindrical...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1547
... fracture for different rocks are examined using scanning electron microscope. Different minerals undergo different failure modes during dynamic shear fracturing, as identified by SEM studies on the fracture surfaces. Wellbore Design SEM Study confinement bar reservoir geomechanics dynamic shear...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1822
... are characterized by a wide distribution of inclination angle from 27° to 60° with the increasing horizontal stress difference, showing that it is less dominated by in-situ stresses. Branches are able to initiate and propagate at contacted fracture surface with local shear concentration. Shear stimulation can...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1700
... fracture surface fracture fracture plane slow-slip evolution evolution 1. INTRODUCTION Shear slip of fractures/faults induced by pressurized fluid injection is a significant phenomenon in reservoir stimulation, micro seismic activity or even induced earthquake (Ellsworth, 2013; Segall, 1989; Wei et...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2086
... Upstream Oil & Gas Simulation experiment fracture propagation fracture surface numerical example hydraulic fracturing cramp fracture fracture height mpm simulation numerical experiment aimene fracture soft interface interface type inlet pressure interface perfect interface weak...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2125
... ABSTRACT: Fracture surface features and proppant are the two essential factors controlling hydraulic fracture conductivity. In this work, we measured the effect of fracture surface and proppant parameters on fracture conductivity based on duplicated rough fracture surfaces. To simulate...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1980
... planes and the anisotropy of shear behaviors for shale. A series of shear tests are conducted using an open-box-style inclined device on shale samples (60 mm × 60 mm × 60 mm) from Lucaogou formation in China. After the shear test, the shear fracture surfaces and stress-strain curves are obtained. Shear...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2109
... of cohesive interlocking asperities during shearing, which suggest that rougher fractures are difficult to reactivate. (2) Rough fracture surfaces show velocity strengthening behavior in the initial shearing stage and their strengthening behaviors evolve to velocity neutral and velocity weakening with greater...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1731
... & mining Upstream Oil & Gas mechanism hydraulic fracturing stress circle Reservoir Characterization Wellbore Design Rock mechanics rock plate excavation specimen rock mass stress state reservoir geomechanics representation Engineering Mohr stress circle representation fracture surface...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1688
... to predict using deterministic approaches. general use hydraulic fracture swarm Upstream Oil & Gas dislocation fracture swarm observation grid Bunger perturbation Modeling & Simulation stress change busetti irregular stress shadow grid resolution fracture surface raterman...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-808
..., energy dissipation is due to fracture surfaces creation instead of material softening in the element. In this work we present an improved VMIB model to bridge the energy dissipation over the representative elementary volume and the fracture surfaces using a virtual bond potential that incorporates...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-479
... ABSTRACT: We investigated the relation between the roughness of fractures and the stress state at which the fractures are created by failing rocks under a range of confining pressure and examining the fracture surfaces. Roughness characteristics of rock fractures can be an important control...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-278
... formation discontinuity Pump Rate proceedings fracture propagation Upstream Oil & Gas natural fracture experiment conductivity acid fluid fracture fracture surface propagation wellbore 1. INTRODUCTION The applications of acid fracturing in limestone formation increased because high...

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