电缆式地层测试器推靠坐封装置安全性设计  

Safety Design of Pushing & Setting Device in Formation Tester EFDT

作　　者：秦小飞[1] 冯永仁[1] 

机构地区：[1]中海油田服务股份有限公司油田技术研究院,河北燕郊065201

出　　处：《机械工程师》2014年第3期140-143,共4页Mechanical Engineer

基　　金：国家科技重大专项课题(2011ZX05020-003)

摘　　要：介绍了电缆式地层测试器(EFDT)的工作原理和推靠坐封装置,分析了地层测试器井下作业遇卡的安全性问题。EFDT推靠坐封装置采用双探头和双支撑臂结构,可进行放松电缆作业,减小泥浆吸附电缆遇卡几率。推靠坐封装置设计了自动解除坐封装置,避免了EFDT在不受控状态下遇卡风险。EFDT在现场的成功应用,验证了推靠坐封装置设计的合理性和可靠性,对其他井下仪器作业安全性设计具有重要参考价值。The operational principle and pushing ＆ setting device of wireline formation tester EFDT are presented. The sticking problem in formation tester downhole operation is analyzed. The pushing ＆ setting device of EFDT is designed with dual probe and backup. The sticking rate of mud absorbing is reduced by relaxing the cable. The sticking of locked setting is avoided by the automatic unlocking setting device under the uncontrolled condition of EFDT. The successful application of EFDT proves the rationality and reliability of the pushing ＆ setting device design,and provide the reference for the safety design of other downhole tools.

关 键 词：地层测试器 EFDT 推靠坐封装置 安全性设计 

分 类 号：TP631.8[自动化与计算机技术—控制理论与控制工程]