钻探施工处理事故的过程中,经过提、打、顶方法处理无效时,一般是把粗径钻具以上的钻杆全部返上来,再作下一步处理。有时起拔套管,经提、打、顶起不上时,一般也采用逐根返回的办法。以往我队在返钻杆或返套管时,是用反箍缠钢丝绳方法。这种方法,优点 Drilling construction in the process of handling accidents, after mentioning, playing, top method to deal with ineffective, the general is the drill above the large diameter drill pipe all back, and then for further processing. Sometimes pulling the casing, the mention, play, do not top up, the general approach is also used by the return. In the past when my team returned to the drill pipe or back to the casing, the method is to use anti-hoop wire rope. This method, the advantages