超级安全阀内防喷技术  

Inner blowout prevention technology of super safety valve

作　　者：周亮 周元杰 王晋 刘学忠 李一民 苏璇 ZHOU Liang;ZHOU Yuanjie;WANG Jin;LIU Xuezhong;LI Yimin;SU Xuan(Well Testing Branch,CNPC Bohai Drilling Engineering Company Limited,Langfang,Hebei 065007,China)

机构地区：[1]中国石油集团渤海钻探工程有限公司油气井测试分公司,河北廊坊065007

出　　处：《油气井测试》2021年第3期13-19,共7页Well Testing

基　　金：中国石油集团渤海钻探工程有限公司科技研发项目“智能地层测试系统研制”(2019ZD04K)。

摘　　要：常规内防喷工具功能单一,不能与其他工艺进行配合作业;带压时不易操作且反复开启容易失封。超级安全阀内防喷技术在地面通过三通道液压控制操作井下全通径球阀开关,可与连续油管、测井电缆、试井钢丝等配合进行完井测试;预置充氮压力可推动球阀剪切连续油管等缆绳,实现管柱内封井;化学注入通道接入井场的化学注入设备,能够有效解决稠油井堵塞井口的问题。该技术在伊拉克鲁克10区块Eridu-1井配合地层测试、连续油管酸化以及生产测井等施工,实现了一套测试管柱与多种工艺联作,应用效果良好。超级安全阀内防喷技术为安全高效试油作业提供了技术支持。Conventional internal blowout preventer has single function and can′t cooperate with other processes;It is difficult to operate under pressure and easy to lose sealing when it is opened repeatedly.Super safety valve internal blowout prevention technology controls and operates downhole full bore ball valve switch through three channels on the ground,which can cooperate with coiled tubing,logging cable and well testing wire for well completion test;The preset nitrogen filling pressure can push the ball valve to shear the coiled tubing and other cables to realize the well sealing in the string;The chemical injection channel is connected to the chemical injection equipment in the well site,which can effectively solve the problem of heavy oil wells blocking the wellhead.The technology has been applied in well Eridu-1 of Ruk 10 block,Iraq,in combination with formation testing,coiled tubing acidizing,production logging and other operations,realizing the joint operation of a set of test string and various processes,and the application effect is good.Super safety valve blowout prevention technology provides technical support for safe and efficient well testing operation.

关 键 词：井控 超级安全阀 试油 测试管柱 地面控制 防喷技术 稠油井 

分 类 号：TE353[石油与天然气工程—油气田开发工程]