The self power generation of preset cable shaft underground and cable butting technique

The present invention relates to oil extraction in oil field field of engineering technology, belong to a kind of preset cable shaft underground self power generation and cable butting technique；It solves preset cable shaft operation process need to be the problems such as card be away from outer binding cable, installation electric cable protector.The present invention is in intelligent watering device（3）, cable-passing packer（4）With down-hole power managing device（6）Tool segment cable（2）Using oil pipe（9）Connect in addition, instantly after complete completion tubular column, by cable（2）Connection self-generating device（8）With downhole cable docking facilities male（7）Put into by well head, downhole cable docking facilities male（7）With downhole cable docking facilities parent（1）Insertion connection, realizes from well head to tool segment cable（2）All in oil pipe（9）Within；The advantages of present invention is with avoiding damaging the risk of cable during job execution, and ensuring the communication and power supply of downhole tool.