Review and Prospect on Study About Low-Permeability Reservoir Stress-Sensitivity
Low-permeability reservoir has been paid more attention to in field exploration and exploitation as conventional reserve decreases, while economical exploitation and management for low-permeability reservoir are severely restricted by stress-sensitivity. A summary about research review on stress-sensitivity was made from evaluation method, fluid-solid coupling model and deliverability equation. It is indicated that method based on insitu stress compound with multinomial equation has a desirable accuracy in stress-sensitivity assessment;Development of numerical simulation softwares with regard to fluid-solid coupling and deliverability equation and water injectivity prediction will be the research priorities in this field. It is also pointed out that in no way can stress-sensitive mechanism be revealed merely based on phenomenology or theoretical derivation. It’s proposed that a comprehensive evaluation system should be obtained taking into account experimental data, theoretical formula and reservoir characteristic;Establishing appropriate structural model of fracture plane and computer simulation method considering interaction between fracture network comprised of natural and hydraulic fractures is the choke point for fracture stresssensitivity yet to be broken.
low-permeability reservoir stress-sensitivity fluid-solid coupling deliverability equation fracture plane structure fracture network
CHEN Jinhui KANG Yili
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan, 610500
国际会议
成都
英文
231-240
2010-10-10（万方平台首次上网日期，不代表论文的发表时间）