CASING HANGER AND PACKOFF RUNNING TOOL

CASING HANGER AND PACKOFF RUNNING TOOL

A single trip casing hanger packoff running tool (10) retains the packoff (98) in a retracted and fully locked position during hanger running, landing and cementing operations, thereby preventing premature engagement of the packoff in the hanger (78) and/or passage of cement return through or around...

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1. Verfasser: RANDY J WESTER
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 RANDY J WESTER
description A single trip casing hanger packoff running tool (10) retains the packoff (98) in a retracted and fully locked position during hanger running, landing and cementing operations, thereby preventing premature engagement of the packoff in the hanger (78) and/or passage of cement return through or around the packoff sealing/setting mechanisms. The running tool includes a central tubular mandrel (12) surrounded by a tubular body (14) and a casing hanger adaptor sleeve (16), the central tubular mandrel (12) having means (18) for attachment to a pipe string; the tubular body (14) surrounding and secured to the mandrel for movement in unison therewith, said body including means (92), (94) for mounting the packoff (98); the casing hanger adaptor sleeve surrounds the mandrel and is releasably connected thereto by latching means (48), (50), (52), which can be moved from an unlatched condition into a latched condition without relative rotation between the mandrel and the sleeve; the sleeve including means (76) for releasably connecting it to a well casing hanger (78) for support thereof on the sleeve.
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The running tool includes a central tubular mandrel (12) surrounded by a tubular body (14) and a casing hanger adaptor sleeve (16), the central tubular mandrel (12) having means (18) for attachment to a pipe string; the tubular body (14) surrounding and secured to the mandrel for movement in unison therewith, said body including means (92), (94) for mounting the packoff (98); the casing hanger adaptor sleeve surrounds the mandrel and is releasably connected thereto by latching means (48), (50), (52), which can be moved from an unlatched condition into a latched condition without relative rotation between the mandrel and the sleeve; the sleeve including means (76) for releasably connecting it to a well casing hanger (78) for support thereof on the sleeve.</description><language>eng</language><subject>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</subject><creationdate>1992</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19920325&amp;DB=EPODOC&amp;CC=GB&amp;NR=2218444B$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19920325&amp;DB=EPODOC&amp;CC=GB&amp;NR=2218444B$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>RANDY J WESTER</creatorcontrib><title>CASING HANGER AND PACKOFF RUNNING TOOL</title><description>A single trip casing hanger packoff running tool (10) retains the packoff (98) in a retracted and fully locked position during hanger running, landing and cementing operations, thereby preventing premature engagement of the packoff in the hanger (78) and/or passage of cement return through or around the packoff sealing/setting mechanisms. 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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 CASING HANGER AND PACKOFF RUNNING TOOL
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