D3井生产油管柱打捞工艺技术研究与实践  

Research and Practice on Fishing Technology of Production Tubing String in Well D3

作　　者：魏波 陈飞 张安治 陈兵 王宏宇 Wei Bo;Chen Fei;Zhang Anzhi;Chen Bing;Wang Hongyu(Supervision Center,PetroChina Tarim Oilfield Company,Korla,Xinjiang 841000,China)

机构地区：[1]中国石油塔里木油田分公司监督中心,新疆库尔勒841000

出　　处：《石油工业技术监督》2022年第10期59-62,68,共5页Technology Supervision in Petroleum Industry

摘　　要：超深高压气井D3井因井筒堵塞使封隔器上部油管受挤压断脱,不能继续生产,需打捞更换油管柱。现场决定先压稳地层,试提油管柱,起出断脱以上油管,以判断井下油管柱落鱼情况。针对封隔器上部油管沉淀物固化、封隔器芯轴抽芯使密封附件落井、下部油管砂垢埋卡堵塞等不同情况,制定不同的打捞方案,且根据每趟打捞结果,总结分析,优选工具组合及工艺。采用套捞磨结合方式成功捞出落井油管和封隔器,比计划提前10 d。本井生产油管的成功打捞,为类似井的打捞作业提供重要参考。In ultra-deep high-pressure gas well D3,the tubing at the upper part of the packer was crushed and broken due to wellbore blockage,so production could not be continued,and the tubing string needs to be salvaged and replaced.On site,it was decided to stabi⁃lize the formation first,try to lift the tubing string,pull out the broken tubing above,and judge the fish falling of the downhole tubing string.Different salvage schemes are formulated for different situations,such as the solidification of the sediments on the tubing at the upper part of the packer,the sealing accessories falling the well caused by the core pulling of the packer mandrel,and the sand burying and blocking of the lower tubing.According to the fishing results of each trip,summarize fishing experience,and optimize the tool com⁃bination and fishing process.The tubing string and packer in the well were successfully salvaged out by the combination of milling,fish⁃ing and drilling,10 days ahead of schedule.The successful fishing of the production tubing of this well provides an important reference for the fishing operation of similar wells.

关 键 词：超深高压气井 井筒堵塞 生产油管 沉淀物固化 封隔器抽芯 砂垢埋卡 

分 类 号：TE358[石油与天然气工程—油气田开发工程]