发明名称 A COLLECTOR DEVICE FOR DRILLING FLUID
摘要 A collector device (1) for collecting drilling fluid from a pipe (30) during disconnecting of the pipe (30) from a pipe string (8), the collector (1) in its active position surrounding the pipe coupling (10) of the pipe string (8), and where the whole or parts of the collecting space (2) of the collector (1) is provided with a porous material (4).
申请公布号 CA2691315(A1) 申请公布日期 2008.12.18
申请号 CA20082691315 申请日期 2008.06.11
申请人 NATIONAL OILWELL NORWAY AS 发明人 WEBB, JONATHAN GARRICK
分类号 E21B21/01;E21B19/16;E21B33/08 主分类号 E21B21/01
代理机构 代理人
主权项
地址