关于提高安塞长6油藏加密效果的几点看法

Views on the Improvement of the Encryption Effectiveness of Chang 6 Reservoir of Ansai Oilfeild

通过对安塞油田长6油藏裂缝与井排匹配关系、压裂缝延伸机理等分析,重点阐述了最大水平主应力对水驱的决定性作用、注水开发过程中动态缝的开启及延伸对开发的影响,提出了开发中后期提高井网加密效果的关键,即在立足于缝网关系匹配的前提下,简化平面开发矛盾、采取新工艺技术提高剖面低渗层动用程度。

This paper mainly discusses the decisive effect of the maximum horizontal principal stress on water drive, the influence of the opening and extension of the dynamic fracture on the development in water-flooding via the analyses of the matching relation between Chang 6 reservoir fracture and the well strain, and the mechanism of the fracture extension etc. It proposes the keys to improve well pattern infilling effects in the middle and later periods of the development, that is, to simplify contradictions in horizontal development and adopt new technology to improve the producing ratio of the low permeability layer based on the matching of fracture and well strain relation.