
基本信息:
- 专利标题: 一种抗冲击承压器
- 专利标题(英):Shock resistant pressure bearing device
- 申请号:CN201410249623.2 申请日:2014-06-06
- 公开(公告)号:CN105019864A 公开(公告)日:2015-11-04
- 发明人: 谢玉洪 , 马勇新 , 李雷祥 , 马文宏
- 申请人: 中国海洋石油总公司 , 中海石油(中国)有限公司湛江分公司
- 申请人地址: 北京市东城区朝阳门北大街25号
- 专利权人: 中国海洋石油总公司,中海石油(中国)有限公司湛江分公司
- 当前专利权人: 中国海洋石油总公司,中海石油(中国)有限公司湛江分公司
- 当前专利权人地址: 北京市东城区朝阳门北大街25号
- 代理机构: 广州广信知识产权代理有限公司
- 代理人: 张文雄
- 主分类号: E21B41/00
- IPC分类号: E21B41/00
The invention discloses a shock resistant pressure bearing device, comprising a pressure bearing device body, a piston ring and a lower joint, wherein the pressure bearing device body is of a hollow tubular structure; the inner diameter at the bottom end of the pressure bearing device body is reduced to bear a seated packer; the upper end and the waist of the pressure bearing device body are respectively provided with threads for connecting an upper string structure with the lower joint; the lower end of the lower joint is provided with threads for connecting a lower string; an annular space is formed between the outer side of the lower part of the pressure bearing device body and the inner side of the lower string structure in the lower joint connected with the pressure bearing device body; a piston ring fixed at the periphery of the lower part of the pressure bearing device body through a shear pin is positioned in the annular space, and a pressure seal is formed between the piston ring and the annular space; the pressure bearing body positioned above the piston ring is provided with a plurality of circulating holes which are communicated with the annular space above the piston ring. The shock resistant pressure bearing device can be recycled in strings, is shock resistant, is not limited to circulating displacement and can avoid the problem that the shear pin shears in advance or cannot shear.
IPC结构图谱:
E | 固定建筑物 |
--E21 | 土层或岩石的钻进;采矿 |
----E21B | 土层或岩石的钻进;从井中开采油、气、水、可溶解或可熔化物质或矿物泥浆 |
------E21B41/00 | 在E21B15/00至E21B40/00各组中所不包含的设备或零件 |