›› 2016, Vol. 37 ›› Issue (S2): 216-222.doi: 10.16285/j.rsm.2016.S2.026

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental study of impact of crustal stress on fracture pressure and hydraulic fracture

MA Geng1, 2, 3, ZHANG Fan1, LIU Xiao1, 3, FENG Dan4, ZHANG Peng-wei1   

  1. 1. School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454003, China; 2. Research Institute of Henan Energy Resources and Chemical Industry Group Co., Ltd., Zhengzhou, Henan 450046, China; 3. Collaborative Innovation Center of Coalbed Methane and Shale Gas for Central Plains Economic Region, Jiaozuo, Henan 454003, China; 4. State Key Laboratory for Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
  • Received:2015-01-04 Online:2016-11-11 Published:2018-06-09
  • Supported by:
    This work was supported by Key Project of Science and Technology Research of Henan Provincial Department of Education (13A440320), 2014 Annual Safety Production of Major Accidents Prevention and Control of Key Technology Projects (henan-066-2013AQ), and Key Technology Projects of Major Accident Prevention and Control in 2015 (henan-0007-2015AQ).

PDF (Chinese)

1311

Abstract: In order to study the influence law of crustal stress on the fracture pressure and hydraulic fracture during hydraulic fracturing, the physical simulation experiment which used similar materials and hydraulic fracturing experiment system is conducted; and then the information of hydraulic fracture is extracted with the help of 3D scanning device for coal rock section and displacement meter. The research results show that with the principal stress difference increases, the fracture pressure decreases gradually; the break-up time becomes shorter progressively; the superficial area of fracture surface becomes larger with the principal stress difference increases; the fracture surface also turns into rough increasingly; the fracture is easier to appear steering, bifurcation when confining pressure is close, the dynamic effects of fracturing fluid is more obvious; the fracture opening decreases with the principal stress difference increasing. The research results can provide reference and data support for the further study of hydraulic fracturing experiment and building the fracture network system.

Key words: crustal stress, hydraulic fracturing, fracture pressure, hydraulic fracture, physical simulation, 3D scanning

CLC Number: 

  • TD 813
[1] SHAO Chang-yue, PAN Peng-zhi, ZHAO De-cai, YAO Tian-bo, MIAO Shu-ting, YU Pei-yang, . Effect of pumping rate on hydraulic fracturing breakdown pressure and pressurization rate [J]. Rock and Soil Mechanics, 2020, 41(7): 2411-2421.
[2] LOU Ye, ZHANG Guang-qing. Experimental analysis of fracturing fluid viscosity on cyclic hydraulic fracturing [J]. Rock and Soil Mechanics, 2019, 40(S1): 109-118.
[3] LIU Bo, MA Yong-jun, SHENG Hai-long, CHANG Ya-ru, YU Jun-jie, JIA Shuai-long, . Experiments on mechanical properties of Cretaceous red sandstone after freeze-thaw process [J]. Rock and Soil Mechanics, 2019, 40(S1): 161-171.
[4] WU Jin-wen, FENG Zi-jun, LIANG Dong, BAO Xian-kai, . Characteristics of granite failure by injecting high-temperature-vapour under uniaxial stress [J]. Rock and Soil Mechanics, 2019, 40(7): 2637-2644.
[5] ZHANG Yu-bin, HUANG Dan. State-based peridynamic study on the hydraulic fracture of shale [J]. Rock and Soil Mechanics, 2019, 40(7): 2873-2881.
[6] ZHANG Fan, MA Geng, FENG Dan, . Hydraulic fracturing simulation test and fracture propagation analysis of large-scale coal rock under true triaxial conditions [J]. Rock and Soil Mechanics, 2019, 40(5): 1890-1897.
[7] ZHANG Wei, QU Zhan-qing, GUO Tian-kui, SUN Jiang. Numerical simulation of hydraulic fracturing in hot dry rocks under the influence of thermal stress [J]. Rock and Soil Mechanics, 2019, 40(5): 2001-2008.
[8] ZHANG Bo, LI Yao, YANG Xue-ying, ZHU Piao-yang, ZHU Chun-di, LIU Zi-hao, LIU Wen-jie, LUO Zhi-heng, . Design and application of a hydraulic pressure supply device for hydraulic fracturing experiments [J]. Rock and Soil Mechanics, 2019, 40(5): 2022-2028.
[9] XU Chen-yu, BAI Bing, LIU Ming-ze, . Experimental study of the fracture characteristics of granite under CO2 injection condition [J]. Rock and Soil Mechanics, 2019, 40(4): 1474-1482.
[10] ZHENG An-xing, LUO Xian-qi, CHEN Zhen-hua, . Hydraulic fracturing coupling model of rock mass based on extended finite element method [J]. Rock and Soil Mechanics, 2019, 40(2): 799-808.
[11] XU Jiang, SONG Xiao-zheng, PENG Shou-jian, ZHANG Chao-lin, LI Qi-xian, ZHANG Xiao-lei, . Physical simulation experiment on influence of borehole spacing along the seam on effect of gas drainage [J]. Rock and Soil Mechanics, 2019, 40(12): 4581-4589.
[12] WANG Pu, WANG Chen-hu, YANG Ru-hua, HOU Zhen-yang, WANG Hong, . Preliminary investigation on the deep rock stresses prediction method based on stress polygon and focal mechanism solution [J]. Rock and Soil Mechanics, 2019, 40(11): 4486-4496.
[13] ZHOU Hui, CHENG Guang-tan, ZHU Yong, ZHANG Chun-sheng, . Anisotropy of shear characteristics of rock joint based on 3D carving technique [J]. Rock and Soil Mechanics, 2019, 40(1): 118-126.
[14] LI Dong, LU Yi-yu, RONG Yao, ZHOU Dong-ping, GUO Chen-ye, ZHANG Shang-bin, ZHANG Cheng-ke, . Rapid uncovering seam technologies for large cross-section gas tunnel excavated through coal seams using directional hydraulic fracturing [J]. Rock and Soil Mechanics, 2019, 40(1): 363-369.
[15] LIANG Tian-cheng, LIU Yun-zhi, FU Hai-feng, YAN Yu-zhong, XIU Nai-ling, WANG Zhen. Experimental study of hydraulic fracturing simulation for multistage circulating pump injection [J]. , 2018, 39(S1): 355-361.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd