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Keywords: hydraulic fracture
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Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0018
... ABSTRACT: Hydraulic fracturing is one of the most effective conventional reservoir-stimulation techniques currently utilized in the petroleum industry. Hydraulic fracture (HF) – Natural fracture (NF) interactions during the hydrofracturing process are complex in space and time. Although in...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0103
... tip. 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...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0021
... ABSTRACT: A laboratory hydraulic fracture experiment was conducted on a Montney shale specimen under the conventional triaxial compressional stress condition. Acoustic emissions (AEs) were recorded using 7 piezoelectric transducers throughout the duration of the test to investigate the...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0104
... ABSTRACT: Horizontal well drilling and hydraulic fracturing have been widely applied to enhance the shale oil production in the Bakken Formation. The stimulated volume of the shale as a result of hydraulic fracturing contributes to increase of the relative conductivity and large folds of...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0096
... are accumulated to an extreme value. Fracture energy anisotropy extent of the shale has been obtained from these partitions, which can be further applied to optimization of the perforation and hydraulic fracturing direction. flow in porous media complex reservoir orientation damage process...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0087
... ABSTRACT: Hydraulic fracturing is the best method to improve production in deep shale, and the complex natural fracture affects the fracture propagation. In this study, numerous true tri-axial experiments were conducted on hydrostone to study the effect of the natural fracture complexity. The...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0045
... Directional Drilling Completion Installation and Operations Modeling & Simulation Upstream Oil & Gas pressure distribution starter crack multiple hydraulic fracture Bunger fracture path interference horizontal well wellbore misalignment drilling operation outer fracture...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0225
... hydraulic fracturing Artificial Intelligence complex reservoir nonuniform stress mechanism Upstream Oil & Gas horizontal section hydraulic fracture shale gas natural fracture shale gas well wellbore deformation ground stress shale gas field stress change accumulation...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0361
...1. INTRODUCTION Hydraulic fracturing has been widely applied by the petroleum industry for the recovery of hydrocarbon from tight oil reservoirs. Hydraulic fracturing in open hole is challenged by the heterogeneous nature of the rock and the microdefects which may create a tortuous fracture path in...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0321
... ABSTRACT: Pre-existing natural fracture networks in unconventional reservoirs present at least two major challenges for refracturing and infill well design. First, spatial characteristics of pre-existing natural fracture networks impact how a hydraulic fracture will propagate. Second, the...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0293
...-based gel fracturing fluid. The anthracite specimens with the natural fracture and the hydraulic fracture were prepared and used. A series of seepage experiments were conducted to test the fracture permeability evolution after gel injection and during water flushing. The result shows that the guar gel...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0146
... with respect to the principal stresses. This mixed-mode failure is triggered especially upon intersection of these natural fractures with hydraulic fractures and the fracturing fluid infiltration into the natural fractures. Among various influential parameters on the fracture intersection behavior...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0322
... ABSTRACT: Pre-existing natural fracture networks (NFNs) are ubiquitous in many unconventional oil and gas formations. Hydraulic fracturing (HF) is used to stimulate these formations; many traditional HF analyses and modeling efforts have largely ignored (or highly simplified) the NFN effect...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0362
... ABSTRACT: The geometry of hydraulic fractures is a major concern, especially in highly fractured reservoirs, once it can severely affect oil productivity. Furthermore, interaction of hydraulic fractures with natural fractures can affect locally the in-situ stress state that may cause slippage...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0289
... induce pressure decrease from apparent fracture plugging. Upstream Oil & Gas composition MPa hydraulic fracturing pressure flow response data eg system US government borehole national laboratory eg collab project hydraulic fracture underground research facility equation production...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0404
...1. INTRODUCTION Multi-stage fracturing Horizontal wells has been a mature technology in exploiting the shale gas. Even though there are abundant natural fractures and hydraulic fractures in fractured shale, the recovery of shale gas is still low, usually no more than 20%. The study of fluid solid...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0437
... weakness planes, is used to represent the natural fractures in shale block-2. Firstly, the developed models are compared with the findings of previously conducted true-triaxial hydraulic fracturing experiments with acoustic measurements, and their subsequent computed tomography (CT) and seismic velocity...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0401
... the maximum slipping of natural fractures in laboratory achieves millimeters, and possibly centimeters in fields by scale laws. The slipping process can be divided into three stages: shear-slipping, open-slipping and extension-slipping. In shear-slipping stage, with the pressure in hydraulic fracture...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0433
....) and sensor configurations (e.g.: horizontal or vertical well deployments). These synthetic DAS measurements are then algorithmically labeled based upon features of interest within their parent models, such as the extent of any generated hydraulic fractures or the distribution of proppant particles...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0403
... ABSTRACT: With a specific case of Fuling shale gas reservoir, an integrated geomechanics workflow was proposed to investigate stress evolution during production and the complex hydraulic fractures propagation of infill well. In the integrated modelling, a natural fractures network was...

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