发明名称 |
WELLHEAD ASSEMBLY |
摘要 |
The adapter, blow-out preventer housing and flow tee of an oilwell wellhead assembly are formed together as a one-piece or integral structure. The structure has a bottom flanged connection and a top studded and internally threaded connection. By eliminating threaded connections and the adapter body, the length of the combined assembly is reduced by about 50% and structural strength is improved.
|
申请公布号 |
CA2169503(A1) |
申请公布日期 |
1997.08.15 |
申请号 |
CA19962169503 |
申请日期 |
1996.02.14 |
申请人 |
STREAM-FLO INDUSTRIES LTD. |
发明人 |
LAM, TONY M.;FARQUHARSON, KEITH D. |
分类号 |
E21B33/03;(IPC1-7):E21B33/06 |
主分类号 |
E21B33/03 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|