发明名称 Casing Joint Assembly for Producing an Annulus Gas Cap
摘要 A casing joint assembly and methods for producing an annulus gas cap using the casing joint assembly. The casing joint assembly comprises a first valve and a second valve to control fluid pressure in the sealed annulus between the casing string and a wall of the well bore or another casing string.
申请公布号 US2015041140(A1) 申请公布日期 2015.02.12
申请号 US201414502800 申请日期 2014.09.30
申请人 Landmark Graphics Corporation 发明人 Mitchell Robert F.
分类号 E21B34/06;E21B34/10;E21B34/14 主分类号 E21B34/06
代理机构 代理人
主权项 1. A casing joint assembly, which comprises: a casing joint with a casing joint wall; a first valve positioned through an opening in the casing joint wall; and a second value positioned through another opening in the casing joint wall.
地址 Houston TX US