同心分注井在线电动验封仪研制及应用  

Development and application of on-line electric sealing testerfor concentric separate layer injection wells

作　　者：张福涛[1] ZHANG Futao(Petroleum Engineering Technology Research Institute of Shengli Oilfield Company,SINOPEC,Dongying 257000,Shandong,China)

机构地区：[1]中国石化胜利油田分公司石油工程技术研究院,山东东营257000

出　　处：《石油地质与工程》2024年第4期101-104,111,共5页Petroleum Geology and Engineering

基　　金：中国石化科技攻关项目“高压低渗透油藏精细分注技术推广应用”(编号:P23126)资助。

摘　　要：随着油田开发的不断深入,分层注水仍是补充地层能量、实现油田稳产、提高采收率的主要开发方式,原有同心分层注水井验封技术存在仪器定位难、密封件易损坏、验封效率低等问题,采用设计和试验相结合的研究方法,研制了同心分注井在线电动验封仪,并配套测调、验封一体多功能地面控制系统,集成流量、上/下压力等多参数测试技术,实现了一次下井、多层验封测试。试验表明,验封仪的坐卡/解卡性能、胶筒坐封/解封性能、整机承压能力、密封承压能力均能达到要求,现场应用效果良好,有效解决了验封效率不高等问题,提高了分层注水测试效率和合格率,为提升油田精细注水效果提供了可靠的工艺技术。With the deepening of oilfield development,stratified water injection is still the main development way to supplement formation energy,achieve stable oil production and enhance oil recovery.The existing concentric stratified water injection well inspection and sealing technology has some problems,such as difficult instrument positioning,easy damage of seals and low efficiency of inspection and sealing.An on-line electric sealing tester for concentric injection wells has been developed by combining design and test.It is equipped with a multifunctional ground control system that integrates multi-parameter testing technology such as flow rate,up/down pressure,etc.,to realize a single well and multi-layer sealing test.The test shows that the setting/unlocking performance,the setting/unsealing performance of the rubber cylinder,the bearing capacity of the whole machine and the sealing bearing capacity can meet the requirements.The field application effect is good,which solves the problem of low sealing efficiency,improves the test efficiency and pass rate of stratified water injection,and provides a reliable process technology for improving the effect of fine water injection in oil fields.

关 键 词：分注井 在线实时 电动 多层验封 

分 类 号：TE837[石油与天然气工程—油气储运工程]