临2馆三~3正韵律厚油层特高含水期剩余油分布研究与挖潜  

Distribution Rule of Remaining Oil Research and Potential Tapping Means in the Period of Super-high Water Cut of the Positive Rhythm Oil Reservoir Ng_(3~3),Block Lin2

作　　者：张辉[1] 石明杰[2] 韩红霞[1] 邵运堂[1] 王世峰[1] 

机构地区：[1]胜利油田有限公司临盘采油厂 [2]中原油田分公司采油一厂

出　　处：《断块油气田》2003年第6期52-54,共3页Fault-Block Oil & Gas Field

摘　　要：临盘油田临 2馆三3油藏为正韵律厚油层 ,直井开发 2 0多年后已进入特高含水开发阶段 ,成为典型的次生底水油藏 ,底水锥进严重 ,含水上升快 ,水驱油效率大大降低 ,开发调整效果较差。在充分研究该油藏开采特征和剩余油分布规律的基础上 ,设计了 7口水平井 ,投产后效果很好 ,断块综合含水下降 6 3% ,采油速度提高 0 91 % ,采收率提高 7 2 % ,增加可采储量 2 4× 1 0 4 t。实践证明 :搞清剩余油分布规律 ,运用水平井技术 ,对提高正韵律厚油层特高含水开发阶段的采收率是卓有成效的。Ng 3 3 of Block Lin 2 is a typical positive rhythm thick layer oil reservoir in Linpan Oilfield,it has entered a high water-cut period of development.Having been developed over 20 years with vertical wells,it has been a secondary bottom-water oil reservoir.The effect of development and adjustment with vertical wells is not relatively well,as a result of bottom water coning more seriously,water-cut rising faster and water displacement efficiency being lower.On the basis of research on the characteristic of oilfield development and the distribution rule of remaining oil,7 horizontal wells have been designed.After putting into production,the effect is comparatively well.The composite water cut has been decreased by 3%,the rate of oil production has been increased 0.91%.and oil recovery has been increased 22%,240,000 t of recoverable reserves has been obtained.

关 键 词：次生底水油藏 特高含水开发阶段 剩余油 分布规律 水平井 采收率 

分 类 号：TE327[石油与天然气工程—油气田开发工程]