摘要
高3624块莲花油层为深层块状稠油油藏。针对区块油藏埋藏深、物性差、粘土矿物含量高等主要问题,从地质特征再认识入手,在剩余油分布规律研究基础上,开展粘土防膨、压裂及注汽参数优化等改善注汽效果研究工作,针对性提出压裂注汽、高压注汽、粘土防膨等措施,前期试验取得成功。在此基础上,对区块进行了整体二次开发部署,现场实施后,开发效果明显改善,日产油与采油速度显著提高,预计最终采收率将提高8个百分点。
Lianhua reservoir in Block Gao3624 is a deep massive heavy oil reservoir.The reservoir is deeply buried,has poor physical property and high content of clay mineral.This paper studies geological characteristics,residual oil distribution,and measures to improve steam injection effect,including clay antiswelling,fracturing and injection parameter optimization.Fracturing steam injection,high pressure injection and clay antiswelling are proposed and have been successful in preceding tests.On this basis,the whole block is deployed for secondary development.Development response has been improved obviously after field implementation;both daily oil production and oil recovery rate have improved notably.It is predicted that the ultimate recovery factor will improve by 8%.
出处
《特种油气藏》
CAS
CSCD
2007年第6期61-64,共4页
Special Oil & Gas Reservoirs
基金
中油辽河油田公司科学基金项目"高3624块油藏精细描述"资金资助(项目编号:辽油2004-44-1-17)
关键词
稠油油藏
难采储量
二次开发
剩余油分布
粘土防膨
压裂注汽
高压注汽
高3624块
heavy oil reservoir
hard-to-recover reserve
secondary development
residual oil distribution
clay antiswelling
fracturing steam injection
high pressure injection
Block Gao3624
