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可取式桥塞是一种油田用井下封堵工具。本文从造成桥塞不能解封的原因,针对桥塞不解封原因确定大修工艺,在实例中分析了在施工中存在问题及原因。
Defective bridge plug is a kind of downhole plugging tool for oilfields. In this paper, the reason that the bridge plug can not be unsealed is determined. The overhaul process is determined according to the reason of the unblocking of the bridge plug. In the example, the problems and reasons in the construction are analyzed.