松散地层井管解卡装置研究与应用

详细信息

刊出日期: 2016-06-10

Research and Application of the Casing Stuck Releasing Device in Loose Strat

Publish Date: 10 June 2016

摘要: 第四系松散地层钻进,一般采用套管保护井壁,施工结束后,需将套管拔出。但由于套管易被管外卡附物挤实,难以提拔。针对这一施工难题,研制出一种松散地层井管解卡装置,可将管外卡附物松动,解卡套管,从而将其拔出。该装置在多个钻孔中应用,均取得了理想效果。
- 松散地层 /
- 钻探 /
- 套管 /
- 解卡装置
Abstract: Casing is commonly used for wall protection in quaternary loose strata drilling and pulled out after completing construction.But it is easily to be stuck by attachments from the outside, pulling out is difficult.A casing stuck releasing device was developed to loose the outside wedged attachments for casing unfreezing and pulling out.This device has been used in boreholes with desired effect.
- loose strata /
- drilling /
- casing /
- unfreezing device