摘要
静安堡油田沈84-安12块为复杂断块注水开发多层砂岩油藏,也是辽河油田储量规模和产量规模最大的高凝油油藏。该油藏经过5次加密调整,现已进入特高含水低速开发阶段。为有效改善开发效果,针对水驱“四大”矛盾加剧、剩余油高度分散等问题,运用油藏工程分析和数值模拟等方法,攻关形成了以“五个精细”为核心的特高含水期注水配套技术。结果表明,基于精细油藏描述,实施开发层系调整、多级细分注水、水淹层挖潜、多元注采调控等对策,可有效提高采收率。
Shen 84-An 12 block in Jing’anbao Oilfield is a typical multi-layer sandstone reservoir developed by water injection in complex fault blocks, and it is also a high pour point oil reservoir with the largest reserves and production scale in Liaohe Oilfield.After five times of infilling adjustment, it has entered the development stage of ultra-high water cut and low speed.In order to effectively improve the development effect, In view of the intensification of the “four major” contradictions of water drive and the high dispersion of remaining oil, the methods of reservoir engineering analysis and numerical simulation have been used to tackle key problems and has formed the supporting technology of water injection in ultra-high water cut stage with “five fine” as the core.The research results are applied to the practice of fine water injection in Shen 84-An 12 block.The results show that oil recovery can still be effectively enhanced by implementing fine water injection measures such as adjustment of development strata, multi-stage subdivision water injection, tapping potential of watered-out zone and multi-element injection-production regulation based on fine reservoir description in ultra-high water cut stage.
作者
阴艳芳
YIN Yanfang(Liaohe Oilfieid Company,CNPC,Panjin Liaoning 124010,China)
出处
《重庆科技学院学报（自然科学版）》
CAS
2022年第1期46-51,共6页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
基金
中国石油天然气股份有限公司重大科技专项“辽河油田千万吨稳产关键技术研究与应用”(2017E-1603)。
关键词
多层砂岩油藏
复杂断块
特高含水期
精细注水
multi-layer sandstone reservoir
complex fault block
extra-high water cut stage
fine water injection
high pour point oil
