摘要
特低渗油藏开发是目前稳定国内石油产量的主要手段,然而特低渗油藏以其低孔低渗的储层特征给开发带来极大的挑战。对国内主要特低渗产油区的开采现状及储层特征进行了较为详细的分析。结果表明,特低渗透油藏开发所面临的主要问题是油田天然能量小、地层吸水能力低、裂缝性储层各向异性突出;开发困难的主要原因是储层属于中等偏强应力敏感——强应力敏感,水锁效应与贾敏效应强,水敏性和酸敏性较强。
The development of the ultra-low permeability reservoirs is the main means for maintaining China stable oil production,but the low porosity and low permeability of the ultra-low permeability reservoirs are the greatest difficulty facing in the development of the ultra-low permeability reservoirs. The present development situation and the reservoir characteristics of the ultra-low permeability reservoirs in Chinese main oil production areas are analyzed, and it is shown that the main problems facing in the development of the ultra-low permeability reservoirs are the small natural energy of oilfields, the small water absorbing capacity of reservoirs and the severe anisotropy of fractured reservoirs, and the main causes leading to the difficult development of them are severe stress, water and acid sensitivity, water locking effect and Jiamin effect.
出处
《石油工业技术监督》
2015年第2期1-6,共6页
Technology Supervision in Petroleum Industry
基金
陕西省自然科学基础研究计划(编号:2012JQ5003)
关键词
特低渗油藏
低孔低渗
非均质性
应力敏感
水锁效应
ultra-low permeability reservoir
low porosity and low permeability
heterogeneity
stress sensitivity
water locking effect
