摘要
针对构造岩性小断块油藏投产后含水上升速度快、产量递减严重的问题,运用超前注水、分阶段控制生产压差、注水注聚合物结合的稳产控制技术,研究油水分布变化规律及稳产对策。应用效果表明,歧南9X1断块在投产初期迅速达到高峰产量并保持高速开采,年采油速度(实产)连续8 a保持在2%以上,断块最终采收率由30.04%提高至46.73%,开采10 a来一直保持一类开发水平。
In consideration with the problems occurred after putting into production of small structural-lifhoJogic faulted block oil reservoir such as rapidly water cut rise and significantly decline of production,a study on variation of oil/water distribution and countermeasures for stable production is conducted by use of a technology for stable production control composed of advanced water injection,staged control of production pressure differential and combined injection of water and polymer.It is illustrated from the application that,the peak production is reached very soon at the initial stage of start-up on stream and high speed recovery is maintained in Block Qinan 9X1.the annual oil recovery rate(actual production) will he maintained at more than 2%consecutively for8a,the ultimate recovery factor increase from 30.04%to 46.73 in the block and development will be at Class Ⅰ level for 10a since recovery.
出处
《特种油气藏》
CAS
CSCD
北大核心
2014年第1期110-112,156,共3页
Special Oil & Gas Reservoirs
基金
中国石油天然气股份有限公司大港油田分公司油田开发科技创新项目"歧南9X1断块高效开发研究与应用"(2006KJ33)
关键词
超前注水
生产压差
注水注聚
采收率
高效稳产
歧南9X1断块
advanced water injection
production pressure differential
injection of water and polymer
recovery factor
efficiently stabilized production
Block Qinan 9X1
