Results 21 to 30 of about 1,645,202 (341)

Comparative study on permeability enhancement effect of separate-layer fracturing and multi-layers comprehensive fracturing in coal seam group

Meikuang Anquan, 2021
In this paper, a gas roadway with multiple coal seams in southwest China is taken as the test site, and the separate-layer hydraulic fracturing and multilayers comprehensive hydraulic fracturing are carried out.
FENG Renjun
doaj   +1 more source

Response Characteristics of Coal-Like Material Subjected to Repeated Hydraulic Fracturing: An Evaluation Based on Real-Time Monitoring of Water Injection Pressure and Roof Stress Distribution

Shock and Vibration, 2021
Conventional hydraulic fracturing has several disadvantages, including a short effective extraction time and low fracture conductivity during long-term extraction.
Yongjiang Zhang, Benqing Yuan, Xingang Niu   +2 more
doaj   +1 more source

Advances and challenges in hydraulic fracturing of tight reservoirs: A critical review

Energy Geoscience, 2021
The hydraulic fracturing technology has been widely utilized to extract tight resources. Hydraulic fracturing involves rock failures, complex fracture generation, proppant transport and fracture closure.
Zhongwei Wu, Chuanzhi Cui, Peifeng Jia, Wang Zhen, Y. Sui   +4 more
semanticscholar   +1 more source

Experimental and Numerical Investigation on Basic Law of Dense Linear Multihole Directional Hydraulic Fracturing

Geofluids, 2021
Using the dense linear multihole to control the directional hydraulic fracturing is a significant technical method to realize roof control in mining engineering.
Xin Zhang, Yuqi Zhang
doaj   +1 more source

Variation law of roof stress and permeability enhancement effect of repeated hydraulic fracturing in low‐permeability coal seam

Energy Science & Engineering, 2021
Hydraulic fracturing experiments were conducted to study the change of initial fracture pressure and roof stress under repeated hydraulic fracturing in coal mines and to investigate the actual penetration enhancement effect on coal seams.
Li Liangwei, Wu Wenbin
doaj   +1 more source

Analysis of the Influence of Hydraulic Fracturing Fluid Velocity on Fracture Propagation

Geofluids, 2023
To reveal the influence of fracturing fluid velocity on hydraulic fracturing fracture propagation, a hydraulic fracturing numerical model was established based on a coalbed methane (CBM) field in the northeast of China.
Yuan Wang, Liguo Zhong, Xiaoguang Sun, Yanqing Feng, Haikun Lin   +4 more
doaj   +1 more source

Laboratory hydraulic fracturing experiments on crystalline rock for geothermal purposes

, 2021
This article reviews laboratory experimental studies on hydraulic fracturing under triaxial and true triaxial stress conditions in crystalline rock for geothermal purposes, and places particular focus on the stimulation of Enhanced Geothermal Systems ...
Zhuang Li, A. Zang
semanticscholar   +1 more source

Close Observation of Hydraulic Fracturing at EGS Collab Experiment 1: Fracture Trajectory, Microseismic Interpretations, and the Role of Natural Fractures

Journal of Geophysical Research: Solid Earth, 2021
Despite the wide application of hydraulic fracturing in enhanced geothermal system (EGS) development and unconventional hydrocarbon production, our understanding of the many factors affecting the propagation of hydraulic fractures has relied on ...
P. Fu, M. Schoenball, J. Ajo-Franklin, C. Chai, M. Maceira, J. Morris, Hui Wu, H. Knox, P. Schwering, M. White, J. Burghardt, C. Strickland, T. Johnson, V. Vermeul, P. Sprinkle, B. Roberts, C. Ulrich, Y. Guglielmi, P. Cook, P. Dobson, T. Wood, L. Frash, Lianjie Huang, M. Ingraham, J. Pope, Megan K. M. Smith, G. Neupane, T. Doe, W. Roggenthen, R. Horne, Ankush Singh, M. Zoback, Herb Wang, K. Condon, A. Ghassemi, Hao Chen, M. McClure, G. Vandine, D. Blankenship, Timothy J Kneafsey   +39 more
semanticscholar   +1 more source

Development status and Prospect of directional hydraulic fracturing technology for coal mine roof [PDF]

E3S Web of Conferences, 2020
Aiming at the harm and control methods of thick and hard roof in coal mine, the paper firstly analyzes the advanced control methods of thick and hard roof, such as directional shaped charge blasting roof control technology, hydraulic fracturing roof ...
Liangwei LI
doaj   +1 more source

Nanomaterials and Technology Applications for Hydraulic Fracturing of Unconventional Oil and Gas Reservoirs: A State-of-the-Art Review of Recent Advances and Perspectives

ACS Omega, 2022
The application of hydraulic fracturing stimulation technology to improve the productivity of unconventional oil and gas reservoirs is a well-established practice.
Zheng Mao, Liang Cheng, DeHua Liu, Ting Li, Jie Zhao, Qi Yang   +5 more
semanticscholar   +1 more source