The creep phenomenon of slow moving oil cylinder of hydraulicpacker badly influences the work quality of the hydraulic control system.
液压打包机油缸的低速爬行现象严重影响液压控制系统的工作质量。
2
A hydraulicpacker typically is set using hydraulic pressure applied through the tubing string rather than mechanical force applied by manipulating the tubing string.
一般地，经油管柱施加液压压力而不是由操纵油管柱施加机械力使封隔器坐封。
3
Formation center tester (FCT) is made up of hydraulic power joint, double PACKER joint, opposing infuse joint, numeric pump exhausting joint, sensor joint and sampling tube joint.