发明名称 |
WELLSTRING ASSEMBLY |
摘要 |
A wellstring assembly comprising a tubular first wellstring part with a passageway; a second wellstring part co-~operating with the first wellstring part; and a releasable wellstring-interconnecting means for selectively interconnecting the first and second wellstring parts; an auxiliary tool for manipulating the second wellstring part, which auxiliary tool can pass along the passageway in the first wellstring part to the second wellstring part, comprising a tool-connecting means for selectively connecting the auxiliary tool to the second wellstring part, and an operating means for operating the wellstring-interconnecting means.
|
申请公布号 |
CA2512833(C) |
申请公布日期 |
2011.04.19 |
申请号 |
CA20042512833 |
申请日期 |
2004.01.14 |
申请人 |
SHELL CANADA LIMITED |
发明人 |
MILLAR, IAN ALEXANDER;RUNIA, DOUWE JOHANNES;WOOD, PAUL NEILSON |
分类号 |
E21B10/62;E21B7/06;E21B10/64;E21B17/07;E21B23/02 |
主分类号 |
E21B10/62 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|