特种油气藏2011，Vol.18Issue(6)：113-116,4.
深层稠油油藏DCS技术研究及应用
摘要
Abstract
Some of the wells in Block Zhuangl39 deep heavy oil reservoir experienced high steam injection pressure, so the steam injection quality could not be guaranteed, leading to the declined cyclic oil production. Therefore the technique of DCS (oil soluble compounded viscosity reducer (dissolver) + CO2 assisted CSS) was studied and applied in the paper. Based on the reservoir characteristics of Block Zhuangl39, the dosage of viscosity reducer and CO2 and steam injection volume were optimized, reducing the operation cost by about 50%. The field application results indicate that the technique can effectively improve the utilization ratio of steam, decrease the steam injection pressure, increase oil/steam ratio and production. It has been tested in 4 wells in Block Zhuangl39 deep heavy oil reservoir, achieving good results with cumulated incremental oil production of more than 8 000 tons.关键词
稠油油藏/深层/DCS/参数优化/桩西油田Key words
heavy oil reservoir/ deep layer/ DCS/ parameter optimization/ Zhuangxi Oilfield分类
能源科技引用本文复制引用
段志刚,杜勇,龚雪峰,林志彬,陈晓英..深层稠油油藏DCS技术研究及应用[J].特种油气藏,2011,18(6):113-116,4.基金项目
中国石化胜利油田分公司项目"稠油热力复合驱的耦合作用与耦合模型"部分内容(E060709-60276040) （E060709-60276040）
