During the completion well testing period of the vertical well section of Ku 1, we tested 2 times and the downholepacker was all imbedded, result in very serious downhole accident.
库1井直井段在完井测试期间， 2次测试井下封隔器均被埋死，造成非常严重的井下事故。
2
Sliding steel sleeve at the lower end of rubber barrel is used to make reasonable force arrangement for downholepacker meanwhile the expandable pressure of rubber barrel is decreased.
胶筒下部钢套采用滑套式，在降低胶筒扩张压力的同时，使封隔器在井下受力更合理。
3
The flowmeter provides one core cable to supply power for the packer and downhole circuit of the flowmeter, at the same time, the signal transmit through the cable.