Drillstring anchor

A drillstring anchor for reacting torque from a drillstring to a wellbore, the drillstring anchor comprising: a channel for receiving a downhole portion of a drillstring 701 so as to be rotationally engaged therewith; multiple segments 703-710 disposed along the drillstring anchor, each segment comp...

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Hauptverfasser:	Graham Watson, Matus Gajdos, Anthony Richard Glover, Mark Webb, Martin Harrall, Ian Southcott
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	Graham Watson Matus Gajdos Anthony Richard Glover Mark Webb Martin Harrall Ian Southcott
description	A drillstring anchor for reacting torque from a drillstring to a wellbore, the drillstring anchor comprising: a channel for receiving a downhole portion of a drillstring 701 so as to be rotationally engaged therewith; multiple segments 703-710 disposed along the drillstring anchor, each segment comprising a respective gripper 714, 715, 716, 717 and a respective actuator capable of being driven to cause the respective gripper to adopt at least one of (a) a first state in which it is urged outwardly for gripping the wellbore and (b) a second, passive state, the gripper of at least one segment being actuable independently of the gripper of at least one other segment; the multiple segments comprising a first segment and a second segment coupled to each other so as to permit relative longitudinal motion therebetween, figs 7a-7d by, for example, the use of rails 711, 712 and push unit 713.
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multiple segments 703-710 disposed along the drillstring anchor, each segment comprising a respective gripper 714, 715, 716, 717 and a respective actuator capable of being driven to cause the respective gripper to adopt at least one of (a) a first state in which it is urged outwardly for gripping the wellbore and (b) a second, passive state, the gripper of at least one segment being actuable independently of the gripper of at least one other segment; the multiple segments comprising a first segment and a second segment coupled to each other so as to permit relative longitudinal motion therebetween, figs 7a-7d by, for example, the use of rails 711, 712 and push unit 713.</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>2023</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&date=20230816&DB=EPODOC&CC=GB&NR=2615620A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230816&DB=EPODOC&CC=GB&NR=2615620A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Graham Watson</creatorcontrib><creatorcontrib>Matus Gajdos</creatorcontrib><creatorcontrib>Anthony Richard Glover</creatorcontrib><creatorcontrib>Mark Webb</creatorcontrib><creatorcontrib>Martin Harrall</creatorcontrib><creatorcontrib>Ian Southcott</creatorcontrib><title>Drillstring anchor</title><description>A drillstring anchor for reacting torque from a drillstring to a wellbore, the drillstring anchor comprising: a channel for receiving a downhole portion of a drillstring 701 so as to be rotationally engaged therewith; 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Matus Gajdos ; Anthony Richard Glover ; Mark Webb ; Martin Harrall ; Ian Southcott</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_GB2615620A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2023</creationdate><topic>EARTH DRILLING</topic><topic>EARTH DRILLING, e.g. DEEP DRILLING</topic><topic>FIXED CONSTRUCTIONS</topic><topic>MINING</topic><topic>OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS</topic><toplevel>online_resources</toplevel><creatorcontrib>Graham Watson</creatorcontrib><creatorcontrib>Matus Gajdos</creatorcontrib><creatorcontrib>Anthony Richard Glover</creatorcontrib><creatorcontrib>Mark Webb</creatorcontrib><creatorcontrib>Martin Harrall</creatorcontrib><creatorcontrib>Ian Southcott</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Graham Watson</au><au>Matus Gajdos</au><au>Anthony Richard Glover</au><au>Mark Webb</au><au>Martin Harrall</au><au>Ian Southcott</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Drillstring anchor</title><date>2023-08-16</date><risdate>2023</risdate><abstract>A drillstring anchor for reacting torque from a drillstring to a wellbore, the drillstring anchor comprising: a channel for receiving a downhole portion of a drillstring 701 so as to be rotationally engaged therewith; 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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	Drillstring anchor
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