发明名称 |
Combination Fluid Pumping Sub and Hanger Lockdown Tool |
摘要 |
A tool for retaining an activator ring of a hanger within a wellhead assembly during a fluid pumping process includes an annular fluid pumping sub body having an end selectively coupled with a supply of fluids and a distal end selectively coupled with the hanger. An outer ring assembly circumscribes and rotates relative to the fluid pumping sub body. A retainer ring circumscribes the fluid pumping sub body and selectively abuts the activator ring. A plurality of biasing assemblies that are selectively compressible are located between the outer ring assembly and the retainer ring, so that when the fluid pumping sub body is coupled with the hanger, an axial lockdown force is maintained on the activator ring by the biasing assemblies during the fluid pumping process. |
申请公布号 |
US2014352977(A1) |
申请公布日期 |
2014.12.04 |
申请号 |
US201414196874 |
申请日期 |
2014.03.04 |
申请人 |
GE Oil & Gas Pressure Control LP |
发明人 |
Borak, Jr. Eugene Allen;Hegde Gajanan B.;Helvenston Andrew Browne |
分类号 |
E21B41/00;E21B21/00 |
主分类号 |
E21B41/00 |
代理机构 |
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代理人 |
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主权项 |
1. A tool for retaining an activator ring of a hanger within a wellhead assembly during a fluid pumping process, the tool comprising:
an annular fluid pumping sub body having a proximal end selectively coupled with a supply of fluids and a distal end selectively coupled with the hanger; an outer ring assembly circumscribing and rotatable relative to the fluid pumping sub body; a retainer ring circumscribing the fluid pumping sub body that selectively abuts the activator ring; and a plurality of biasing assemblies that are selectively compressible between the outer ring assembly and the retainer ring, so that when the fluid pumping sub body is coupled with the hanger, an axial lockdown force is maintained on the activator ring by the biasing assemblies during the fluid pumping process. |
地址 |
Houston TX US |