首页|提高水井分注测试成功率配套技术研究与应用

提高水井分注测试成功率配套技术研究与应用

Research and application of supporting technologies for improving success rate of water injection well testing

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为解决苏北复杂断块油田同心分层注水在实际应用中存在测试仪器遇阻、分层注水量调配不到位等问题,创新采用空心杆冲洗清管,研究应用防返吐配水器、化学防砂技术来保持注水管柱清洁;设计聚合物冻胶调剖体系来缓解层间矛盾,避免层间级差影响测调效果.各项配套技术累计应用13井次,矿场试验证明其在避免测试仪器遇阻、降低分层注水量调配难度方面具有良好效果,年度配套措施井测试成功率达100％,同心分层注水井整体测试成功率由74.4％提升至84.4％,做优精细注水工作的同时实现降本增效,具有良好的推广应用前景.
To address the challenges of test instrument obstruction and the suboptimal deployment of concentric stratified water injection in the Subei complex fracture block oilfields,an innovative approach involving the use of a hollow rod for pipe cleaning was introduced.This method focused on two key areas:the implementation of a flowback preventing water dispenser and the application of chemical sand control technology to maintain the cleanliness of the water injection pipe.In addition,a polymer gel profile control system was designed to mitigate the disparities between layers,aiming to minimize the influence of stratum grade differences on measurement and adjustment processes.This suite of supporting technologies has been applied to testing wells a total of thirteen times.The on-site tests have demonstrated that this approach is effective in preventing the obstruction of testing instruments and in simplifying the deployment process for layered water injection.Notably,the success rate of testing wells for these annual supporting measures reached 100％,marking a significant achievement.Furthermore,the overall success rate of concentric layered water injection wells increased from 74.4％to 84.4％.The implementation of this method offers a dual advantage of reducing costs and enhancing efficiency,particularly in the context of optimizing fine water injection.

concentric stratified water injectionlow testing success ratehollow rod cleaningsand controlflowback preventing water dispenserpolymer gel profile control

许国晨、刘晓文

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中国石化华东油气分公司泰州采油厂,江苏泰州 225300

同心分层注水 测试成功率低 空心杆清洗 防砂 防返吐配水器 聚合物调剖

中国石化华东油气分公司&&

HDF/KJ2020-29HDF/KJ2020-28

2023

10.13809/j.cnki.cn32-1825/te.2023.06.008

油气藏评价与开发
中国石油化工集团公司华东石油局

油气藏评价与开发

CSTPCDCSCD北大核心
影响因子：0.461
ISSN：2095-1426
年,卷(期)：2023.13(6)
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