摘要
以典型的小断块普通稠油油藏——古城油田泌124断块下层系为例,通过开展油藏规模的聚合物驱跟踪数模研究,优化注入、采出相关敏感参数指导聚驱跟踪调整,采取适宜的井网井距,优选时机调剖,及时有效的防窜措施,适时调整注聚浓度,注聚井实施油套分注等高效跟踪调整技术,使该块聚驱取得了十分理想的增产效果,见效高峰期时日产油由注聚前的47.5 t/d增至80 t/d,综合含水由注聚合物前的83.6%下降至最低68.0%,阶段吨聚合物换油指标达到47.7 t/t,提高采收率5.7%,取得了很好的开发效果。
To take common heavy oil reservoir of typical small fault block Bi-124 fault lower series of Gucheng oil field as an example, this paper studied on the reservoir widely polymer flooding tracking numerical simulation and than optimized the polymer flooding tracking adjustment guiding by the sensitive parameters related to injection/recovery. The study took suitable pattern spac- ing, optimizing profile modification opportunity and timely effective anti-channeling measures and adjusted the consistency of the polymer and the high efficiency tracking adjustment technique such as tubing-casing zonal injection to get Ideal stimulation effect in this block. In response fastigium, daily oil production went up to 80 t/d from 47.5 t/d, composite water cut fell down to 68.0 % from 83.6 %, sectional polymer-oil displacement rate reached 47.7 t/t and the recovery increased by 5.7 %. It had obtained great development effect.
出处
《油气藏评价与开发》
2013年第1期40-43,共4页
Petroleum Reservoir Evaluation and Development
关键词
小断块
普通稠油
高效聚合物驱
跟踪调整
古城油田
small fault block, common heavy oil, high efficiency polymer flooding, tracking adjustment, Gucheng oil field
