发明名称 |
SYSTEM AND METHOD FOR LOW-PRESSURE WELL COMPLETION |
摘要 |
A low-pressure wellhead system with tubular heads and mandrels secured independently using threaded unions. A casing mandrel is secured to a wellhead by a first threaded union. Likewise, a tubing head spool is secured to the casing mandrel using a threaded union. A tubing hanger is also secured to the tubing head spool using a threaded union. An adapter flange may also be secured to the tubing hanger by a threaded union. Because this low-pressure wellhead is faster and easier to assemble and provides full bore access, there is less rig downtime, thus rendering the well completion process faster and more economical.
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申请公布号 |
CA2462154(C) |
申请公布日期 |
2007.07.10 |
申请号 |
CA20042462154 |
申请日期 |
2004.03.26 |
申请人 |
MCGUIRE, BOB;DALLAS, MURRAY L. |
发明人 |
MCGUIRE, BOB;DALLAS, L. MURRAY |
分类号 |
E21B33/03;E21B33/02 |
主分类号 |
E21B33/03 |
代理机构 |
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代理人 |
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主权项 |
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