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井喷在地面被控制后井眼的大部分井段成功地得以恢复,开发商以较低的费用进行侧钻重新钻到设计井深。恢复井喷后损坏的井筒是一个具有挑战性的问题。在美国,由于井喷造成井内砂桥使地面井喷得以控制,但这种控制是不稳定的。钻杆被埋在井底,井底砂桥形成不稳定的压力密封。修复井眼的目的是尽可能长地恢复井深。若钻杆能被起出,则套管下入井内。否则,井眼要清洗到中间套管以下的深度。本文所讨论的恢复损坏的井筒是一个成功的范例。使用强行下钻装置和连续油管装置进行修复井喷后井眼的大部分长度并永久报废裸眼段部分。修复井筒到中间套管鞋以下的深度,并在此深度开窗,以较低的费用重新钻到设计井深。
Well blowout was successfully restored in most of the wellbores after the ground was controlled, and developers were re-drilled to design depths at a lower cost. Recovering a damaged wellbore after blowout is a challenging issue. In the United States, this control is not stable due to blowout caused by sandblasting in the well to make ground blowout controllable. Drill pipe is buried in the bottom of the well, the bottom of the sand bridge to form an unstable pressure seal. The purpose of repairing a wellbore is to restore well depth as long as possible. If the drill pipe can be played out, the casing into the well. Otherwise, the wellbore will be washed to a depth below the middle casing. The restoration of damaged wellbores discussed in this article is a successful example. The use of forced drilling devices and coiled tubing fixes most of the length of the wellbore after blowout and permanently rejects the part of the naked eye. Repair the wellbore to a depth below the middle casing shoe, and at this depth, open the window and re-drill to the design depth at a lower cost.