Simple cementing bridge plug

The utility model provides a simple cementing bridge plug and in particular relates to a bridge plug for oil field workover treatment. The bridge plug comprise a barrel and a bridge plug assembly; the barrel is provided with an inner cavity penetrating axially; the bridge plug assembly is arranged i...

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Hauptverfasser: DUAN GUANGHAI, WANG LI, XUE MING, SHI XUEDONG, LI CHANG, YU YANG, LIU SHIHUI, MEI YUFEN, WANG DEWEI, FU CHUANDONG, SHI PEIXUAN, DONG HONGJIANG, LIU JINGDANG, ZHOU KONGLIAN, JIA CAIHUA
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The utility model provides a simple cementing bridge plug and in particular relates to a bridge plug for oil field workover treatment. The bridge plug comprise a barrel and a bridge plug assembly; the barrel is provided with an inner cavity penetrating axially; the bridge plug assembly is arranged in the inner cavity and separately connected to the inner wall of the barrel; the bridge plug assembly comprises a core shaft, a lower anchoring mechanism and a rubber mat; the rubber mat is hollow and inverted cone-shaped and sleeves the core shaft; the lower anchoring mechanism is located under the rubber mat and sleeves the core shaft. The bridge plug assembly can be separated from the barrel and packed in a sleeve; after the bridge plug assembly is packed, the barrel does not need to be taken out and cement can be directly injected into the well by use of a cementing pipe column; as a result, the operation steps are simplified, the operations are simple and the waste of lots of cost is reduced.