井下信号电缆二次对接技术研究与应用
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摘要
针对目前智能采油技术存在的生产管柱与配产管柱不能有效分离、配产管柱容易失效以及油泵只能采用非标泵的问题,开展了井下电缆二次对接技术研究。通过设计井下丢手对接装置和电缆二次对接装置,完成井下生产管柱与配产管柱的快速对接与分离,实现湿环境下的电缆二次对接。室内试验结果表明:电压从50 V调节至220 V,温度从30℃升至150℃,系统绝缘阻值均在100 MΩ以上,绝缘性较好。该技术现场应用10井次,应用最大井斜59°,最大井深2 630m,对接成功率90%,达到了不动配产管柱进行分层采油的目的。井下信号电缆二次对接技术为智能采油技术大面积推广奠定了基础。
To address the problems of the intelligent production technology like ineffective separation of the production pipe and distribution pipe,the easy-to-fail of distribution pipe and the only applicability of non-standard pumps,the secondary docking technology research on downhole cables is carried out. By designing the downhole release docking device and the cable secondary docking device,the quick docking and separation of the downhole production pipe and the distribution pipe could be allowed,and the cable secondary docking in the wet environment is realized. The indoor test results show that,under the voltage of 50 V to 220 V and the temperature of 30 ℃ to150 ℃,the insulation resistance of the system is above 100 MΩ,presenting good insulation performance. The technology has been applied in 10 wells with the maximum well inclination of 59° and the maximum well depth of2 630 m. The 90% docking success rate achieved the purpose of separate layer oil production without changing distribution pipe. The secondary docking technology of downhole signal cable laid the foundation for the large-scale promotion of intelligent oil production technology.
To address the problems of the intelligent production technology like ineffective separation of the production pipe and distribution pipe,the easy-to-fail of distribution pipe and the only applicability of non-standard pumps,the secondary docking technology research on downhole cables is carried out. By designing the downhole release docking device and the cable secondary docking device,the quick docking and separation of the downhole production pipe and the distribution pipe could be allowed,and the cable secondary docking in the wet environment is realized. The indoor test results show that,under the voltage of 50 V to 220 V and the temperature of 30 ℃ to150 ℃,the insulation resistance of the system is above 100 MΩ,presenting good insulation performance. The technology has been applied in 10 wells with the maximum well inclination of 59° and the maximum well depth of2 630 m. The 90% docking success rate achieved the purpose of separate layer oil production without changing distribution pipe. The secondary docking technology of downhole signal cable laid the foundation for the large-scale promotion of intelligent oil production technology.
引文
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[2]阮臣良,朱和明,冯丽莹,等.国外智能完井技术介绍[J].石油机械,2011,39(3):82-84.RUAN C L,ZHU H M,FENG L Y,et al. Introduc-tion to foreign intelligent completion technology[J].China Petroleum Machinery,2011,39(3):82-84.
[3]付亚荣.分层采油多级封隔器坐封模型[J].石油机械,2016,44(10):90-92.FU Y R. Setting model of multiple packer for separatelayer production[J]. China Petroleum Machinery,2016,44(10):90-92.
[4]王兆会,曲从锋,袁进平.智能完井系统的关键技术分析[J].石油钻采工艺,2009,31(5):1-4.WANG Z H,QU C F,YUAN J P. Key techniques forintelligent completion system[J]. Oil Drilling Technol-ogy,2009,31(5):1-4.
[5]邱云凤.一种防水防盐雾圆形电连接器的结构设计[J].机电元件,2003,23(4):10-12,17.QIU Y F. The structure design of a circular electric con-nector with waterproof and salt spray resistance[J].Electromechanical Components,2003,23(4):10-12,17.
[6]胡晓东,于慧敏.浅谈水下电连接器的密封设计[J].机电元件,2014,34(4):3-6,54.HU X D,YU H M. The seal design of underwater elec-trical connectors[J]. Electromechanical Components,2014,34(4):3-6,54.
[7]王存明,米智楠.水下插拔连接器的选用[J].流体传动与控制,2009(5):45-46.WANG C M,MI Z N. Selection of underwater wet-mateconnectors[J]. Fluid Drive and Control,2009(5):45-46.
[8]任万滨,崔黎,翟国富,等.电连接器接触件插拔特性与接触电阻的仿真分析[J].机电元件,2012,32(3):40-44.REN W B,CUI L,ZHAI G F, et al. Simulation ofcontacts inserted characteristics and contact resistancefor electrical[J]. Electromechanical Components,2012,32(3):40-44.
[9]许军,李坤.电接触的接触电阻研究[J].电工材料,2011(1):10-13.XU J, LI K. The research on resistance of electricalcontact[J]. Electrical Engineering Materials, 2011(1):10-13.
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