高温深井液压桥塞坐封工艺技术  

Setting and sealing technology of hydraulic bridge plug in high temperature and deep well

作　　者：黄生松 许大智 卢刚 汤火林 HUANG Shengsong;XU Dazhi;LU Gang;TANG Huolin(Engineering Technology Department,CNPC GreatWall Drilling Company,Beijing 100101,China;Material Division,CNPC GreatWall Drilling Company,Beijing 100101,China;Downhole Tools Division,Sinopec SJS Ltd.,Jingzhou,Hubei 434022,China;Well Testing Company,CNPC GreatWall Drilling Company,Beijing 100101,China)

机构地区：[1]中国石油集团长城钻探工程有限公司工程技术处,北京100101 [2]中国石油集团长城钻探工程有限公司物资分公司,北京100101 [3]中国石化集团四机赛瓦石油钻采设备有限公司井下工具事业部,湖北荆州434022 [4]中国石油集团长城钻探工程有限公司测试公司,北京100101

出　　处：《油气井测试》2020年第4期29-34,共6页Well Testing

基　　金：中国石油集团长城钻探工程公司科技研发项目“海外复杂油气井测试工艺技术研究及应用”(GWDC201802-05)。

摘　　要：桥塞坐封工具通常采用缓释火药驱动、液压驱动及电动驱动三种坐封方式。缓释火药驱动坐封工具需要使用缓释火药作为动力,安全风险较高;电动坐封工具则需使用特制的电能驱动微型电机;而MHSB型液压桥塞坐封工具通过油管或钻杆传输下入桥塞,采用上下独特的两级坐封活塞,无需缓释火药、液压油或电机驱动,即可实现桥塞坐封、丢手一体化作业工艺。该工艺技术在海外一口超深、高温、高含硫油气井(H2S含量44%)中成功应用4井次,坐封、丢手一次成功率100%。该工具性能稳定可靠,适用于深井、超深井、高温高压井施工作业。Commonly used bridge plug setting tools include slow-burning gunpowder-driven,hydraulic-driven and motor-driven setting tools.Slow-burning gunpowder-driven setting tools use slow-burning gunpowder as power,so they are very unsafe.Motor-driven setting tools use electrical energy instead of chemical energy from slow-burning gunpowder.MHSB hydraulic bridge plug setting tool only uses the tubing or drilling string to run the setting tools.It uses two levels of setting pistons(an upper piston and a lower piston)to set the bridge plug and finish releasing operation instead of slow-burning gunpowder,hydraulic oil or a motor.The tool has been used for 4 times in an ultra-deep H2S well(44%H2S)outside China.The success rate of setting and releasing operations was 100%.The tool has stable and reliable performance and is suitable for deep wells,ultra-deep wells,high-temperature and high-pressure wells.

关 键 词：完井 桥塞 坐封工具 液压坐封 两级坐封活塞 电动坐封 火工品 

分 类 号：TE353[石油与天然气工程—油气田开发工程]