Improving reservoir permeability by electric pulse controllable shock wave

doi:10.1007/s13202-023-01633-2

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Improving reservoir permeability by electric pulse controllable shock wave
	Zhu XG(朱心广); Feng C(冯春); Cheng PD(程鹏达)
刊名	JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
	2023-04
关键词	Controllable shock wave continuous-discontinuous element method Coupling model Fracture Reservoir permeability
ISSN号	2190-0558
DOI	10.1007/s13202-023-01633-2
英文摘要	Controllable shock wave (CWS) parameters such as amplitude, operating area and number of operations are easy to control and have received extensive attention as a potential new technology for reservoir permeability enhancement. Based on the continuous-discontinuous element method (CDEM) and considering the coupling mechanism of reservoir deformation, failure, pore seepage and fracture flow, a multiphysical field coupling model of reservoir permeability enhancement under CWS is proposed. Under the fluid-solid coupling condition, the formation and development dynamic process of reservoir fractures are obtained, and the change of reservoir permeability is also obtained. The compression fracture zone, tensile fracture zone and undamaged zone are formed around the wellbore. After repeated impact, the number of fractures is more sensitive to tectonic stress, the fracture aperture is more sensitive to reservoir strength. Different from hydraulic fracturing, a large number of fractures in different directions will appear around the main fracture after repeated impact, forming a complex fracture network similar to spider web, which may be beneficial to improve reservoir permeability. The permeability of reservoirs with different tectonic stresses and strengths increases nonlinearly and monotonicly with repeated impacts. Based on CDEM, the change of reservoir permeability with tectonic stress, strength and impact times is obtained, which is a nonlinear monotonic three-dimensional relationship. Based on that relationship, the parameters of CWS can be controlled to predict the change of reservoir permeability, such as peak pressure, duration, impact times, etc. Therefore, it can optimize the reservoir fracturing scheme and improve the reservoir fracturing efficiency, which has considerable practical significance in engineering.
分类号	Q4
WOS研究方向	WOS:000978078800001
语种	英语
资助机构	National Natural Science Foundation of China [11802312, U1762216] ; National Science and Technology Major Project of the Ministry of Science and Technology of China Project [2016ZX05037006]
其他责任者	Cheng, PD
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/92278]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	(Zhu Xinguang, Feng Chun, Cheng Pengda) Chinese Acad Sci Inst Mech Key Lab Mech Fluid Solid Coupling Syst Beijing 100190 Peoples R China
推荐引用方式 GB/T 7714	Zhu XG,Feng C,Cheng PD. Improving reservoir permeability by electric pulse controllable shock wave[J]. JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY,2023.
APA	朱心广,冯春,&程鹏达.(2023).Improving reservoir permeability by electric pulse controllable shock wave.JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY.
MLA	朱心广,et al."Improving reservoir permeability by electric pulse controllable shock wave".JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY (2023).