Combination fluid pumping sub and hanger lockdown tool

Combination fluid pumping sub and hanger lockdown tool

A tool (10) for retaining an activator ring (20) of a hanger (16) within a wellhead assembly (14) during a fluid pumping process includes an annular fluid pumping sub body (24) having an end selectively coupled with a supply of fluids and a distal end selectively coupled with the hanger. An outer ri...

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Hauptverfasser: BORAK EUGENE ALLEN, HEGDE GAJANAN B, HELVENSTON ANDREW BROWNE
Format: Patent
Sprache:chi ; eng
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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creator BORAK EUGENE ALLEN
HEGDE GAJANAN B
HELVENSTON ANDREW BROWNE
description A tool (10) for retaining an activator ring (20) of a hanger (16) within a wellhead assembly (14) during a fluid pumping process includes an annular fluid pumping sub body (24) having an end selectively coupled with a supply of fluids and a distal end selectively coupled with the hanger. An outer ring assembly (36) circumscribes and rotates relative to the fluid pumping sub body. A retainer ring (46) circumscribes the fluid pumping sub body and selectively abuts the activator ring. A plurality of biasing asemblies (48) 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.
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subjects EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
title Combination fluid pumping sub and hanger lockdown tool
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