Separate injection tubular column

The invention discloses a separate injection tubular column and belongs to the technical field of oilfield water injection, the separate injection tubular column comprises a packer, a water distributor, a working barrel, a screen pipe and a check valve, and the packer comprises a central pipe, a lin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LI ZHENGTIAN, HU GAIXING, YANG LINGZHI, YU JIUZHENG, BI FUWEI, LIU YANQING, WANG ERZHEN, JI ZHENNING, WANG JUNTAO
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a separate injection tubular column and belongs to the technical field of oilfield water injection, the separate injection tubular column comprises a packer, a water distributor, a working barrel, a screen pipe and a check valve, and the packer comprises a central pipe, a liner pipe and a first pressure bearing sleeve. Through the first control unit arranged in the first cavity and the second control unit arranged in the second cavity, opening and closing of fluid channels between the first cavity and the central pipe and between the second cavity and the central pipe can be controlled, and then automatic setting and unsetting operation of the packer is achieved. 本发明公开了一种分注管柱,属于油田注水技术领域,该一种分注管柱及控制方法,包括封隔器、配水器、工作筒、筛管和单流阀,封隔器包括中心管、衬管和第一承压套。通过设置于第一空腔和第二空腔内的第一控制单元和第二控制单元,能够控制第一空腔、第二空腔与中心管之间流体通道的开闭,进而实现封隔器的自动化坐封和解封作业。