发明名称 |
HYBRID WELLHEAD SYSTEM AND METHOD OF USE |
摘要 |
A hybrid wellhead system its assembled using a plurality of threaded unions, such as spanner nuts or hammer unions, for securing respective tubular heads and a flanged connection for securing a flow control stack to a top of a tubing head spool. The tubing head spool is secured by a threaded union to an intermediate head spool. The intermediate head spool is secured by another threaded union to a wellhead. Each tubular head secures and suspends a tubular string in the well bore. The hybrid wellhead system is capable of withstanding higher fluid pressures than a conventional independent screwed wellhead, while providing a more economical alternative to a flanged, or ranged; wellhead system because it is less expensive to construct and faster to assemble.
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申请公布号 |
CA2461233(C) |
申请公布日期 |
2007.11.13 |
申请号 |
CA20042461233 |
申请日期 |
2004.03.16 |
申请人 |
MCGUIRE, BOB;DALLAS, MURRAY L. |
发明人 |
MCGUIRE, BOB;DALLAS, L. MURRAY |
分类号 |
E21B33/03;E21B33/038;E21B33/04 |
主分类号 |
E21B33/03 |
代理机构 |
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