摘要
描述了块状特低渗透砾岩油藏水淹特征及水淹规律,并利用加密井水淹层解释结合动态分析定量描述了水淹体形态随时间的变化、进一步讨论了该类油藏的水驱机理,且对该区油藏的长期双线性渗流模型、裂缝控制水驱方向、水驱速度差异、裂缝的应力敏感性等进行了讨论。现场应用该成果,控制注水取得较好成效。
The waterflooding characteristics and laws of ultra-low permeability massive conglomerate reservoir were described. The flooded layer interpretation of the infilling well combined with the dynamics analysis can be used for quantitatively descripting the the flooded morphology which changes with the time,and further discusses the water drive mechanism of reservoir. The long-term bilinear flow model was also discussed,water flooding direction controlled by the fracture,the velocity difference of waterflooding,the stress sensitivity of the fracture of the reservoir in the area. Through field application of the research results,controlling water injection has achieved better results.
出处
《科学技术与工程》
北大核心
2016年第26期182-188,共7页
Science Technology and Engineering
基金
国家科技重大专项(2011ZX05013-006)资助
关键词
特低渗透
裂缝
砾岩
应力敏感
水驱
ultra-low permeability
fracture
conglomerate
stress sensitivity
water flooding
