孤东油田开发后期聚驱转后续水驱最佳时机分析  

Analysis of the optimal timing for polymer flooding tosubsequent water flooding in later stage of Gudong Oilfield development

作　　者：张冠宇 李林祥[2] 杨帅 官敬涛 秦婷婷 宋宏斌 ZHANG Guanyu;LI Linxiang;YANG Shuai;GUAN Jingtao;QIN Tingting;SONG Hongbin(School of Ocean and Earth Sciences,Tongji University,Shanghai 200092,China;Gudong Oil Production Plant of Shengli Oilfield,SINOPEC,Dongying 257000,Shandong,China)

机构地区：[1]同济大学海洋与地球科学学院,上海200092 [2]中国石化胜利油田孤东采油厂,山东东营257000

出　　处：《石油地质与工程》2023年第6期76-79,共4页Petroleum Geology and Engineering

摘　　要：孤东油田新近系馆陶组上段Ⅰ、Ⅱ类整装油藏普遍转入后续水驱开发阶段,而Ⅲ类储层大部分处于聚合物后期,尚未转入后续水驱开发。为进一步提高孤东油田馆陶组上段开发区块的采收率,需确定Ⅲ类油藏转入后续水驱的合理注入时机,因此,在不同含水阶段应用聚合物溶剂驱油的注入参数和数值模拟技术,对Ⅲ类油藏注聚后期合理转入后续水驱的时机进行了实验研究,结果表明,当含水率约95%时,为转入后续水驱的最佳时机。该结论为孤东油田馆陶组上段Ⅲ类油藏注聚后期合理转入后续水驱方案的制定提供借鉴。In Gudong Oilfield,type I and II reservoirs in the upper member of Guantao Formation in Neogene have generally entered the subsequent waterflooding development stage,while type III reservoirs are in the late polymer stage and have not yet entered the subsequent waterflooding development stage.In order to improve the recovery,it’s necessary to make clear the reasonable injection timing for type III oil reservoirs to be transferred to subsequent waterflooding.Therefore,the injection parameters and numerical simulation techniques of polymer solvent flooding were applied in different water-bearing stages,and the experimental research on the optimal timing for polymer flooding to subsequent waterflooding of type III reservoirs was conducted.The results indicate that when the water content is about 95%,it is the best time.This conclusion provides a reference for waterflooding design for type III reservoirs in upper member of Guantao Formation in Gudong Oilfield.

关 键 词：孤东油田 新近系馆陶组上段 Ⅲ类储层油藏 后续水驱 

分 类 号：TE34[石油与天然气工程—油气田开发工程]