Results 291 to 300 of about 1,645,202 (341)

Physical Simulation of Hydraulic Fracturing of Large-Sized Tight Sandstone Outcrops

, 2020
Hydraulic fracturing is an indispensable technology in developing tight oil and gas resources. However, the development of tight oil and gas is not consistently satisfactory. Further understanding of hydraulic fracturing of tight sandstone is required,
Tiankui Guo, Songjun Tang, Shun Liu, Xiaoqiang Liu, Jianchun Xu, Ning Qi, Zhenhua Rui   +6 more
semanticscholar   +1 more source

Regulating Hydraulic Fracturing

2018
INTRODUCTION Significant interest prevails in virtually all continents to access the hydrocarbons in the deep shale basins and other unconventional resources such as coalbed methane (also known as coal seam gas), tight gas and basin-centred gas. Recent development of shale resources in North America has been extraordinary, but local factors including
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A three-dimensional numerical study of hydraulic fracturing with degradable diverting materials via CZM-based FEM

, 2020
Both microseismic interpretation and post-frac production analysis have confirmed that initial hydrocarbon production and ultimate recovery in reservoirs are mainly associated with the degree of fracture complexity.
Daobing Wang, Yongcun Dong, Dongliang Sun, Bo Yu   +3 more
semanticscholar   +1 more source

The position of hydraulic fracturing to initiate vertical fractures in hard hanging roof for stress relief

, 2020
A strong and hard hanging roof causes high underground stress in underground mines, leading to rock burst, coal and gas outburst, or large deformations in roadways.
Jiangwei Liu, Changyou Liu, Qiang-ling Yao, Guangyao Si   +3 more
semanticscholar   +1 more source

Influences of hydraulic fracturing on microfractures of high-rank coal under different in-situ stress conditions

, 2020
The influence of hydraulic fracturing on coal microfractures (10–1000 μm) is an important part of the stimulation mechanism of coalbed methane (CBM) hydraulic fracturing, which is of great significance to improve the productivity of CBM.
Mou Pengwei, Pan Jienan, Wang Kai, Jiang Wei, Yang Yanhui, Wang Xianglong   +5 more
semanticscholar   +1 more source

Feasibility evaluation of hydraulic fracturing in hydrate-bearing sediments based on analytic hierarchy process-entropy method (AHP-EM)

, 2020
Natural gas hydrate is an attractive potential as alternative energy source. The initial studies of natural gas hydrate production test have shown that the hydrate productivity via conventional depressurization is still far to reach the commercial level,
Xiaoqiang Liu, Weidong Zhang, Zhanqing Qu, Tiankui Guo, Ying Sun, M. Rabiei, Q. Cao   +6 more
semanticscholar   +1 more source

Experimental investigation on hydraulic fracturing of granite specimens with double flaws based on DIC

Engineering Geology, 2020
Hydraulic fracturing is a crucial technology for shale gas exploitation and enhanced geothermal systems. However, the fundamental mechanisms of hydraulic fracturing, such as the mechanism (tensile or shear) of cracks, physical process of crack initiation,
Cheng Zhao, J. Xing, Yimeng Zhou, Zhenming Shi, Gang Wang   +4 more
semanticscholar   +1 more source

Investigation on fracture creation in hot dry rock geothermal formations of China during hydraulic fracturing

, 2020
The abundant geothermal energy in hot dry rock (HDR) formations is an attractive renewable energy resource with great potential. China will develop its first HDR geothermal formation in the Gonghe Basin.
Zhou Zhou, Jin Yan, Yijin Zeng, Xudong Zhang, Zhou Jian, L. Zhuang, Shunyuan Xin   +6 more
semanticscholar   +1 more source

Numerical simulation of hydraulic fracturing of hot dry rock under thermal stress

Engineering Fracture Mechanics, 2020
The hot dry rock (HDR) hydraulic fracturing is a complex physical process coupling the effects of seepage, stress, temperature, and damage. The high temperature and brittleness of the HDR leads to the great thermal stress, and the rock is possibly ...
Tiankui Guo, Songjun Tang, Shun Liu, Xiaoqiang Liu, Wei Zhang, Guanzheng Qu   +5 more
semanticscholar   +1 more source

Temperature Analysis in Hydraulic Fracturing

Journal of Petroleum Technology, 1987
Summary. We present a thermal analysis of hydraulic fracturing based on variational methods. Our purpose is to provide a theoretical method for determining fracturing fluid temperature as a function of time and location during fracture growth.
Biot, Maurice A., Masse, L., Medlin, W.L.   +2 more
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