Wear bushing with hanger lockdown

Wear bushing with hanger lockdown

A wear bushing assembly (20) protects and locks down a hanger (46) in a wellhead housing (45); and which includes a wear bushing body (22) that inserts into a wear bushing sleeve (34). A lock ring (40) extends into registered recesses (42, 44) on the body and sleeve to couple together the body and s...

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Hauptverfasser: Ford, David Lawrence, Peters, Stephen David, Benson, Daniel Caleb
Format: Patent
Sprache: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 Ford, David Lawrence
Peters, Stephen David
Benson, Daniel Caleb
description A wear bushing assembly (20) protects and locks down a hanger (46) in a wellhead housing (45); and which includes a wear bushing body (22) that inserts into a wear bushing sleeve (34). A lock ring (40) extends into registered recesses (42, 44) on the body and sleeve to couple together the body and sleeve. The wellhead housing has a profiled recess circumscribing its inner surface. A lockdown ring (28) selectively mates with the profiled recess; and when mated is in interfering contact with an upper surface of the wear bushing sleeve, thereby coupling the sleeve to the wellhead housing. The sleeve outer surface is profiled to interfere with upward movement of the hanger, so that force is transferred from the hanger to the housing through the sleeve which locks down the housing.
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A lock ring (40) extends into registered recesses (42, 44) on the body and sleeve to couple together the body and sleeve. The wellhead housing has a profiled recess circumscribing its inner surface. A lockdown ring (28) selectively mates with the profiled recess; and when mated is in interfering contact with an upper surface of the wear bushing sleeve, thereby coupling the sleeve to the wellhead housing. 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A lock ring (40) extends into registered recesses (42, 44) on the body and sleeve to couple together the body and sleeve. The wellhead housing has a profiled recess circumscribing its inner surface. A lockdown ring (28) selectively mates with the profiled recess; and when mated is in interfering contact with an upper surface of the wear bushing sleeve, thereby coupling the sleeve to the wellhead housing. The sleeve outer surface is profiled to interfere with upward movement of the hanger, so that force is transferred from the hanger to the housing through the sleeve which locks down the housing.</abstract><oa>free_for_read</oa></addata></record>
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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 Wear bushing with hanger lockdown
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