渤海油田典型低效井堵塞物成分分析及堵塞机理研究
Analysis of composition and mechanism of Blockages in Typical Low Efficiency Wells in Bohai Oilfield
刘玥 1朱诗杰 2赵文森 3潘定成 1代磊阳1
作者信息
- 1. 中海石油(中国)有限公司天津分公司 天津 300452
- 2. 重庆科技大学石油与天然气工程学院 重庆 401331
- 3. 中国海洋石油总公司研究院有限公司 北京 100027
- 折叠
摘要
随着开发程度的加深,渤海油田低效井日益增多,严重影响了油田开发效益.为解决渤海油田典型低效井堵塞问题,分析该油田典型低效井垢样组分,结合目标井开发特征,以揭示不同类型低效井堵塞机理.研究结果表明:注水井垢样是以SiO2 颗粒为主的无机垢,其堵塞机理为注入水与储层的不配伍性,注聚井以聚合物絮凝体系包裹无机颗粒形成的堵塞为主.分别垢样组成,揭示堵塞机理,为海上油田低效井的改善措施提供支撑.
Abstract
There are more and more inefficient wells in Bohai Oilfield,which seriously affects production and development efficiency.It is necessary to solve the problem of typical inefficient well blockage in offshore oilfields.By analyzing the composition of scale samples taken from typical inefficient wells in Bohai Oilfield and combining with the development characteristics of target wells,this study reveals the blockage mechanisms of different types of inefficient wells.Research Has shown that the scale samples in water injection wells are mainly inorganic scale composed of SiO2 particles,and the incompatibility between injected water and formation is its blockage mechanism.Polymer injection wells are blockages formed by encapsulating inorganic particles in polymer flocculation systems.Understanding the composition of scale samples and revealing the blockage mechanism can provide support for improving measures for inefficient wells in offshore oil fields.
关键词
渤海油田/低效井/垢样组成/堵塞机理Key words
Offshore oil fields/Low efficiency wells/Scale composition/Blocking mechanism引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据