七棵树油田注采结构调整研究

Injection-Production Adjustment in Qikeshu Oilfield

七棵树油田构造位于松辽盆地东南隆起区梨树断陷东部斜坡带,油田开发层系简单,主力油层为沙河子组2、3号砂体。自从注水开发以来,主要面临的问题为自然递减大,注水受效不均,平面产能差异大等问题。本文通过从注水补充、注采反应、注水波及等三个方面详细分析了油田目前的注采现状,提出了一系列注采井网完善、注水政策等调整措施,以达到改善油田开发效果,延长稳产期的目标。

The Qikeshu Oilfield located in the Songliao Basin construction Southeast Uplift Lishu faulted eastern slope, the main reservoir of 2,3 Shahezi sand. Since water injection development, the main problem is the natural decline of large, water efficiency and uneven plane capacity differences. Analysis the water supplement, injection reaction, water rippled of the current status of oil injection, Proposed a series of injection wells network improvement, water policy adjustment measures in order to achieve the effect of improving the oilfield development, to extend the target stable production period.