WELL TOOL LOCKING SYSTEM FOR STAGGERED BORE

WELL TOOL LOCKING SYSTEM FOR STAGGERED BORE

A well tool locking system adapted for releasably locking a lock mandrel and surface-controlled subsurface safety valve in a staggered well bore is disclosed. The subject locking system comprises a collapsible, slidably engaged no-go ring and locating dogs that are operatively coupled to a locking s...

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1. Verfasser: WILLIAM RICHARD WELCH
Format: Patent
Sprache:eng
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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 WILLIAM RICHARD WELCH
description A well tool locking system adapted for releasably locking a lock mandrel and surface-controlled subsurface safety valve in a staggered well bore is disclosed. The subject locking system comprises a collapsible, slidably engaged no-go ring and locating dogs that are operatively coupled to a locking sleeve to pre-prop locking keys in the annular recesses of a landing nipple prior to applying control line pressure to the safety valve. The subject locking system is designed to lock in the direction of flow, does not require the use of shear pins, and will not release from the running tool until the safety valve is activated and the lock mandrel locking keys are fully engaged with the landing nipple.
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The subject locking system comprises a collapsible, slidably engaged no-go ring and locating dogs that are operatively coupled to a locking sleeve to pre-prop locking keys in the annular recesses of a landing nipple prior to applying control line pressure to the safety valve. 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The subject locking system comprises a collapsible, slidably engaged no-go ring and locating dogs that are operatively coupled to a locking sleeve to pre-prop locking keys in the annular recesses of a landing nipple prior to applying control line pressure to the safety valve. The subject locking system is designed to lock in the direction of flow, does not require the use of shear pins, and will not release from the running tool until the safety valve is activated and the lock mandrel locking keys are fully engaged with the landing nipple.</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 WELL TOOL LOCKING SYSTEM FOR STAGGERED BORE
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