发明名称 |
Multiple-positioning mechanical shifting system and method |
摘要 |
A multiple-positioning mechanical shifting system including for used in hydrocarbon wells. The system includes a shifting tool capable of selectively positioning a mechanical sliding sleeve valve in multiple operational positions that varying the flow rate and/or volume of tubing string fluid flowing to the well annulus. The system also includes a multiple position mechanical choke valve. A method of operating the mechanical choke valve using the shifting tool is described. |
申请公布号 |
US8141648(B2) |
申请公布日期 |
2012.03.27 |
申请号 |
US20090437805 |
申请日期 |
2009.05.08 |
申请人 |
DARNELL WILLIAM JOHN;WINTILL CHARLES DAVID;LONG RODNEY WAYNE;CHRETIEN TODD ULRICH;PETROQUIP ENERGY SERVICES, LP |
发明人 |
DARNELL WILLIAM JOHN;WINTILL CHARLES DAVID;LONG RODNEY WAYNE;CHRETIEN TODD ULRICH |
分类号 |
E21B34/14;E21B43/12 |
主分类号 |
E21B34/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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