注水井不泄压修井作业工艺技术研究  

Study on Work-Over Tech Without Pressure Relief for Water Injection Well

作　　者：王继伟[1] 张啸[1] 王海楼[1] 韩波[1] 

机构地区：[1]吉林石油集团有限责任公司井下作业工程公司

出　　处：《油气井测试》2007年第z1期15-18,共4页Well Testing

摘　　要：低产、低渗油田注水开发过程中,注水井修井作业放喷降压会造成地层压力下降、水资源浪费、污染环境等问题。注水井不泄压修井作业技术解决了注水井注水层段调整、更换管柱及配件等一系列井下作业施工难题。该技术既实现注水井作业小修不泄压作业,又能进行大修解卡、打捞、套铣、磨铣、贴补等工艺,对注水开发油田提供了更好的技术支持。During developing process for low production and low percolation oilfields, open down pressure of work-over operation for water injection well causes problems of formation pressure being down, waste of water resource and environmental pollution. Tech of work-over operation without pressure leakage resolves series problems of adjustment of water injection section, changing producing string and repairs parts. It not only realizes no pressure relief for small size work-over operation, but also conducts procedures of unstuck, fishing, washover, milling and patch which is a technical support for development of water injection oilfield.

关 键 词：注水井 修井 防喷装置 压力控制 

分 类 号：TE27[石油与天然气工程—油气井工程] P631.81[天文地球—地质矿产勘探]