RCD sealing elements with multiple elastomer materials

RCD sealing elements with multiple elastomer materials

A sealing element for a rotating control device is disclosed, wherein the sealing element has an inner surface which forms a drillstring bore extending axially through the sealing element, an attachment end having a receiving cavity extending into the attachment end substantially parallel with the d...

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Hauptverfasser: LI YANMEI, LOCKSTEDT ALAN W, CHELLAPPA SUDARSANAM
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 LI YANMEI
LOCKSTEDT ALAN W
CHELLAPPA SUDARSANAM
description A sealing element for a rotating control device is disclosed, wherein the sealing element has an inner surface which forms a drillstring bore extending axially through the sealing element, an attachment end having a receiving cavity extending into the attachment end substantially parallel with the drillstring bore, a nose end opposite from the attachment end, wherein the nose end has an inner diameter smaller than the inner diameter of the attachment end, a throat region between the attachment end and the nose end, at least one soft elastomer region comprising a soft elastomer material having a hardness of 70 duro or less, and at least one stiff elastomer region comprising a stiff elastomer material having a hardness greater than 70 duro.
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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>2013</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=20131203&amp;DB=EPODOC&amp;CC=US&amp;NR=8596345B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20131203&amp;DB=EPODOC&amp;CC=US&amp;NR=8596345B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LI YANMEI</creatorcontrib><creatorcontrib>LOCKSTEDT ALAN W</creatorcontrib><creatorcontrib>CHELLAPPA SUDARSANAM</creatorcontrib><title>RCD sealing elements with multiple elastomer materials</title><description>A sealing element for a rotating control device is disclosed, wherein the sealing element has an inner surface which forms a drillstring bore extending axially through the sealing element, an attachment end having a receiving cavity extending into the attachment end substantially parallel with the drillstring bore, a nose end opposite from the attachment end, wherein the nose end has an inner diameter smaller than the inner diameter of the attachment end, a throat region between the attachment end and the nose end, at least one soft elastomer region comprising a soft elastomer material having a hardness of 70 duro or less, and at least one stiff elastomer region comprising a stiff elastomer material having a hardness greater than 70 duro.</description><subject>EARTH DRILLING</subject><subject>EARTH DRILLING, e.g. DEEP DRILLING</subject><subject>FIXED CONSTRUCTIONS</subject><subject>MINING</subject><subject>OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2013</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDALcnZRKE5NzMnMS1dIzUnNTc0rKVYozyzJUMgtzSnJLMhJBQonFpfk56YWKeQmlqQWZSbmFPMwsKYBqVReKM3NoODmGuLsoZtakB-fWlyQmJyal1oSHxpsYWppZmxi6mRkTIQSAEwXLY4</recordid><startdate>20131203</startdate><enddate>20131203</enddate><creator>LI YANMEI</creator><creator>LOCKSTEDT ALAN W</creator><creator>CHELLAPPA SUDARSANAM</creator><scope>EVB</scope></search><sort><creationdate>20131203</creationdate><title>RCD sealing elements with multiple elastomer materials</title><author>LI YANMEI ; LOCKSTEDT ALAN W ; CHELLAPPA SUDARSANAM</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US8596345B23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2013</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>LI YANMEI</creatorcontrib><creatorcontrib>LOCKSTEDT ALAN W</creatorcontrib><creatorcontrib>CHELLAPPA SUDARSANAM</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LI YANMEI</au><au>LOCKSTEDT ALAN W</au><au>CHELLAPPA SUDARSANAM</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>RCD sealing elements with multiple elastomer materials</title><date>2013-12-03</date><risdate>2013</risdate><abstract>A sealing element for a rotating control device is disclosed, wherein the sealing element has an inner surface which forms a drillstring bore extending axially through the sealing element, an attachment end having a receiving cavity extending into the attachment end substantially parallel with the drillstring bore, a nose end opposite from the attachment end, wherein the nose end has an inner diameter smaller than the inner diameter of the attachment end, a throat region between the attachment end and the nose end, at least one soft elastomer region comprising a soft elastomer material having a hardness of 70 duro or less, and at least one stiff elastomer region comprising a stiff elastomer material having a hardness greater than 70 duro.</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 RCD sealing elements with multiple elastomer materials
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