tension type packer

The improvement of expandable packer equipped with sliding gear was made to implement one operation of seal-sitting and detection using one string with bridge-plug.

提出了采用热采桥塞堵水验封一体化管柱来解决桥塞的验封问题,介绍了热采桥塞堵水管柱丢手后,通过扩张式封隔器的改造,配合滑套开关解决了桥塞密封性检验,实现了桥塞一趟管柱的坐封和验封,取得了很好的效果。

Design and experiment of downhole hydraulic packer for coalbed methane subhorizontal drilling;

煤层气近水平孔孔底水力封隔器设计与试验