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Keywords: fracture tip
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1865
...) and high injection rates (0.23 m 3 /s). As fracturing fluid viscosity increases, the pumping time taken for the hydraulic fracture to initiate a state of growth increases. For all viscosities, the hydraulic fracture exhibited the greatest propensity to grow when the natural fracture tips approached...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0103
.... This ultimately results in a slight increase of fracture opening and net pressure. hydraulic fracturing fracture tip time step algorithm cohesive zone Upstream Oil & Gas Garagash net pressure toughness fluid lag modeling viscosity Detournay evolution time evolution fluid front Lecampion...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0279
... (DDM). The reduction in stress intensity factors at the fracture tips resulting from the corresponding shear slippage length and shear displacement discontinuities are presented. The improved height growth model that accounts for the effect of shear slippage at weak interfaces is integrated in a pseudo...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0490
... for reservoir stimulation increases, efforts are being directed towards quantifying microfractures to determine how they impact reservoir production. Injection point fracture tip Upstream Oil & Gas process zone termination point primary fracture hydraulic fracturing secondary fracture network...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2071
... analytical model that provides a quick method of fracture diagnostics during a frac treatment. hydraulic fracturing fracture length fracture height plane strain element fracture characterization field data Reservoir Characterization fracture tip pressure change Manchanda Upstream Oil...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2182
... ABSTRACT: The effects of approach angle and matrix poroelasticity on three-dimensional fracture interactions are investigated by examining changes in stress intensity factors around hydraulic fracture tips. Additionally, the effect of the compressive stress induced by the hydraulic fracture...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1696
... on conditions that a fracturing fluid was switched on the way of fluid injection to a slurry containing fine solid particles. As a result, it was clearly seen from CT images that soon after the slurry injection, the particles reached fracture tip and accumulated there with time. These results show that TSO...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1760
... manifests as one or several shear bands emanating from the expanding cavity; next, fracture initiation occurs at one of these shear bands; lastly shear bands, continuously form and branch ahead of the fracture tip as the fracture propagates. This work also demonstrated that, contrary to conventional wisdom...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0492
... and the corresponding stress release to improve the design of this product. 1. INTRODUCTION drilling fluids and materials fracture tip particle hydraulic fracturing polymer fluid loss well control annular pressure drilling concentration spe annual technical conference smart lost circulation material...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0706
... the natural fractures to prevent them from propagation. However, the prevention may fail when the drilling fluid leaks through the solid plugging material and alters the fracture tip. Once the drilling fluid effect is strong enough, the natural fracture would be instable and begin to grow. This paper...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0763
... (? 2/3 ) solutions for the fracture aperture co-exist near the fracture tip. Depending on the ratio of viscous dissipation and fracture resistance, the region for the validity of each tip asymptote varies. In this paper, we developed a 2D displacement discontinuity based hydraulic fracture propagation...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0720
... for fluid pressure calculations close to the fracture tips to catch its singularity. The numerical results were validated against the analytical solutions for two extreme hydraulic fracture propagation regimes. Mesh independency and convergence rate of the proposed method are verified. Comparison between...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0510
... gradient enhancement for drilling operations. Case studies are performed to assess different sealing conditions. Results show remarkable declines of fracture fluid pressure across the sealant and substantial reduction of fluid loss into the fracture. Case study concludes that fracture tip protection can...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0762
... propagation natural fracture hydraulic fracturing fracture tip stimulation fracture deformation hydraulic fracture fracture network numerical model fracture propagation fracture Ghassemi complex reservoir natural fracture element normal stress fracture element principal stress mechanically...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0144
... regime fracture toughness Detournay closure case 1 fracture tip flow rate iteration fracture propagation fracture Upstream Oil & Gas fracture growth time step equation toughness injection propagation 1. INTRODUCTION Hydraulic fracturing is widely used to increase transmissivity...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0393
..., proppant volumes, fluid viscosities, and leak-off coefficients are compared. fracturing materials Upstream Oil & Gas regime Peirce numerical solution fracturing fluid tip region hydraulic fracturing fracture tip fracture viscosity semi-infinite hydraulic fracture toughness particle...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0396
... in the fracture length estimation for the considered cases. reference solution regime Dontsov fracture tip fracture toughness Peirce elasticity equation equation hydraulic fracturing accuracy correspond non-local elasticity epkn model algorithm fracture Upstream Oil & Gas elasticity...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-136
... pore pressure has its maximum value in the vicinity of the fracture surfaces and it decreases and spread-out from the fracture surfaces. An interesting observation is that near the fracture tips the induced pore pressure has a value less than the in-situ pore pressure. The fracture expansion or opening...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-786
... Upstream Oil & Gas roughness production monitoring fracture characterization fracture length laminar turbulent flow fracture regime cross-section laminar solution production control hydraulic fracturing fracture tip friction factor elliptical cross-section evolution propagation...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-444
... saturation, resulting in high total compressibility of reservoir fluid. We observe the gas concentration at near fracture tip, caused by (1) the movement of initial gas within the fracture to the fracture tip and (2) the possibility of the leakage of gas from the formation to the hydraulic fracture...

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