Wang Daobing,Zhou Fujian,Ge Hongkui,et al.The main factors and rules of stress shadow of perpendicular cracks[J].Journal of Shenzhen University Science and Engineering,2017,34(No.4(331-440)):344-351.[doi:10.3724/SP.J.1249.2017.04344]





The main factors and rules of stress shadow of perpendicular cracks
汪道兵123周福建1葛洪魁1Sergio Zlotnik2杨向同4彭金龙5
Wang Daobing123 Zhou Fujian1 Ge Hongkui1 Sergio Zlotnik2 Yang Xiangtong4 and Peng Jinlong5
1) Unconventional Natural Gas Research Institute, China University of Petroleum, Beijing 102249, P.R.China
2) School of Civil Engineering, Technical University of Catalonia, Barcelona E-08034, Spain
3) Institute of Oil Production Engineering, Research Institute of Exploration & Development, PetroChina, Beijing 100083, P.R.China
4) Tarim Oilfield Company, PetroChina, Kuerle 841000, Xinjiang Uygur Autonomous Region, P.R.China
5) The Second Oil Extraction Plant of Daqing Oilfield Company Limited, PetroChina, Daqing 163414, Heilongjiang Province, P.R.China
stress interference fracture network fracturing perpendicular crack finite element method diverting agent degradable fiber fluid pressure fluid-solid coupling linear elastic mechanics
TE 355
Based on elasticity theory, we use numerical Galerkin finite element discretization method and implement Matlab finite element code to simulate “stress shadow” distributions of mutual orthogonal fractures. The principal stress and principal distributions have the symmetry characteristic on the intersection (coordinate origin). The relationships between stress shadow and flow pressure ratio, pore pressure, fluid pressure and horizontal stress contract are analyzed, respectively. By these techniques of variable displacement construction, changing the viscosity of the fracturing fluid, exploitation of oil and gas wells changing pump rate and fracturing fluid viscosity, reducing pore pressure and increasing the injection volume, taking the advantages of shadow effect, it is likely to produce a complex fracture network.


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Foundation:National Basic Research Program of China (2015CB250903); National Natural Science Foundation of China (51490652); Science and Technology Major Special Program for the 13th Five-Year Plan of China (2016ZX05030-005); Scientific Research Fund of China University of Petroleum in Beijing(2462016YXBS10)
Corresponding author:Professor Zhou Fujian. E-mail: zhoufj@cup.edu.cn
Citation:Wang Daobing, Zhou Fujian, Ge Hongkui, et al. The main factors and rules of stress shadow of perpendicular cracks[J]. Journal of Shenzhen University Science and Engineering, 2017, 34(4): 344-351.(in Chinese)
作者简介:汪道兵(1985—),男,中国石油大学(北京)博士研究生.研究方向:非常规储层缝网形成与控制机理. E-mail: 0546wdb@163.com
引文:汪道兵,周福建,葛洪魁,等. 相互垂直裂缝应力阴影的影响因素及规律[J]. 深圳大学学报理工版,2017,34(4):344-351.
更新日期/Last Update: 2017-06-26