- 专利标题： Plug and valve integrated cone valve pump with combined type movable and fixed three cylinders and two spiral centralizers
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申请号： US17142261申请日： 2021-01-06
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公开(公告)号： US11434702B2公开(公告)日： 2022-09-06
- 发明人: Xinfu Liu , Chunhua Liu , Chao Zhou , Jianjun Wu , Peng Gao , Shousen Zhang
- 申请人： QINGDAO UNIVERSITY OF TECHNOLOGY
- 申请人地址： CN Qingdao
- 专利权人： QINGDAO UNIVERSITY OF TECHNOLOGY
- 当前专利权人： QINGDAO UNIVERSITY OF TECHNOLOGY
- 当前专利权人地址： CN Qingdao
- 优先权： CN202010294874.8 20200415
- 主分类号： E21B17/10
- IPC分类号： E21B17/10 ; E21B34/14 ; E21B43/12
摘要：
The present invention relates to a plug and valve integrated cone valve pump with combined type movable and fixed three cylinders and two spiral centralizers, which is applied to suction working conditions in highly deviated well sections. It comprises three pump cylinders, which are combined type including two fixed cylinders and a dynamic cylinder, two centralizers, which are combined type including a dynamic spiral centralizer and fixed spiral centralizer, a fixed cone valve, a cylinder and plug integrated springing fixed cone valve, a fixed plunger and a movable guide rod cone valve to solve the problems such as stuck pump, eccentric wear between plunger and pump cylinder and valve leakage.
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