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在SU47-12-61-H1井钻井过程中,由于泥岩层塌陷,致使钻具在水平段塌陷卡钻,无法建立有效循环。针对此大斜度井和水平井油钻管遇卡采用传统解卡方式无效的情况下,结合连续管能重新建立管内循环及在水平井方面的应用,提出了用连续管进行聚能切割解卡的思路。通过聚能解卡,管柱被顺利起出,解卡取得成功。本次连续管聚能解卡的成功,为处理大斜度井和水平井工程事故提供新的方法和思路。
During the drilling of well SU47-12-61-H1, because of the collapse of the mudstone, the drill pipe collapses in the horizontal section and the effective circulation can not be established. In view of the ineffectiveness of the traditional card jamming in case of encountering card with the oil pipe of this high deviated well and the horizontal well, the continuous tube can be used to reestablish the circulation in the tube and the application in the horizontal well. Idea of the card. Solve the problem by gathering energy, the pipe string is successfully launched, the card was successful. The success of the continuous tube poly card solves the problem, and provides new methods and ideas for handling the engineering accidents of high gradient wells and horizontal wells.