Results 31 to 40 of about 2,300,291 (174)

Numerical Simulation of Gas and Water Flow Mechanism in Hydraulically Fractured Shale Gas Reservoirs [PDF]

, 2016
The problem of the fracturing water remaining in hydraulically fractured shale gas reservoirs has become one of the major concerns in terms of gas productivity and operating costs.
Shen WJ(沈伟军), Huang WG, Shen WJ, Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China, Gu JR, Xu YM, Li XZ   +5 more
core   +1 more source

Effects of hydration on the mechanical properties of deep shale under true triaxial stress: A case study of Fuling shale gas in Sichuan Basin, SW China

Petroleum Exploration and Development
This study takes shale samples from the Jiaoshiba block in the Fuling shale gas field of the Sichuan Basin, and uses the true triaxial testing system to conduct a series of mechanical experiments under deep shale reservoir conditions after shale ...
Jinzhou ZHAO, Zhihao YU, Lan REN, Ran LIN, Jianfa WU, Yi SONG, Cheng SHEN, Ying SUN   +7 more
doaj   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Experimental study on the permeability jail range of tight gas reservoirs through the gas–water relative permeability curve

Frontiers in Physics, 2022
The permeability jail refers to a specific water saturation range in a tight gas reservoir, where almost no gas or water phase can flow effectively. In the process of drilling and fracturing, water saturation rises and falls into the permeability jail ...
Wei Gong, Lijun You, Jieming Xu, Yili Kang, Yang Zhou   +4 more
doaj   +1 more source

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

Deep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source

Research and Application of Low-Velocity Nonlinear Seepage Model for Unconventional Mixed Tight Reservoir

Energies
Due to factors such as low porosity and permeability, thin sand body thickness, and strong interlayer heterogeneity, the fluid flow in the tight reservoir (beach-bar sandstone reservoir) exhibits obvious nonlinear seepage characteristics. Considering the
Li Ma, Cong Lu, Jianchun Guo, Bo Zeng, Shiqian Xu   +4 more
doaj   +1 more source

Fluid‐induced slip on a rate‐and‐state fault during co‐ and post‐injection: The interplay of fluid pressure diffusion and poroelastic stress

Deep Underground Science and Engineering, EarlyView.
Fault slip can occur ahead of the injection pressure front due to poroelastic stress. Our model captures the interaction of pressure, stress, and friction, providing new insights into injection‐induced seismicity and post‐injection fault slip. Shut‐in operations can either mitigate or accelerate seismic events depending on fault conditions and ...
Qifeng Xie, Lei Wang, Qi Li
wiley   +1 more source

Microscopic production characteristics and fluid behavior of shale oil in CO2–cosolvent SAG process: Insights into EOR and carbon storage

Journal of Rock Mechanics and Geotechnical Engineering
Non-equilibrium molecular dynamics method was employed to simulate dimethyl ether (DME) and ethyl acetate (EA) assisted CO2 flooding, huff-n-puff, and SAG in organic–inorganic composite nanopores. The mechanisms and performances of enhanced oil recovery (
Yifan Zhang, Lu Wang, Run Zou, Yifan Yuan, Liang Huang, Yisheng Liu, Heng Wang, Zhan Meng   +7 more
doaj   +1 more source

Multi‐factor coupling effects in hydraulic fracturing of laminated shale: Experimental insights and physics‐informed neural network‐driven optimization

Deep Underground Science and Engineering, EarlyView.
This study establishes a multi‐factor coupling framework for predicting breakdown pressure in laminated shale by integrating experimental hydraulic fracturing tests, physics‐informed neural networks (PINNs), and Sobol sensitivity analysis. It reveals how differential stress, the bedding dip angle, and the injection rate interact to influence fracture ...
Tao Wang, Guoyao Xu, Liyuan Liu, Yao Zhang, Sitao Zhu, Hongyang Chu, Kaikai Zhao   +6 more
wiley   +1 more source

The law of fracture propagation and intersection in zipper fracturing of deep shale gas wells

Petroleum Exploration and Development
In response to the unclear understanding of fracture propagation and intersection interference in zipper fracturing under the factory development model of deep shale gas wells, a coupled hydro-mechanical model for zipper fracturing considering the ...
Qiang WANG, Yufeng WANG, Yongquan HU, Jinzhou ZHAO, Yi SONG, Cheng SHEN   +5 more
doaj   +1 more source