Leakage-proof valve for mortar environment
The invention relates to the fields of well completion and production of petroleum and natural gas, in particular to a leakage-proof valve for a mortar environment. An outer layer component sleeves the outer side of a whole, formed by an inner layer component and a switching mechanism, in a sealing...
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| creator | CAO YING WANG TAO ZHAO LIANBAO XIU HAIMEI GONG YONGGANG CHEN ZENGHAI TIAN YUAN WU SHAOLU XU ZHENDONG LI WENTAO TANG WENBO TAN CAIYUAN LIU YE YIN FUSEN TIAN FANG LI TIE XU KUN |
| description | The invention relates to the fields of well completion and production of petroleum and natural gas, in particular to a leakage-proof valve for a mortar environment. An outer layer component sleeves the outer side of a whole, formed by an inner layer component and a switching mechanism, in a sealing way; the switching mechanism is in elastic connection with the outer layer component; an upper jointand a lower joint are separately in threaded connection with the outer layer component; the upper joint is connected with the inner layer component in a sealing way, and the lower joint is connectedwith the switching mechanism in a sealing way. The switching mechanism is designed in a closed space, so that the problem of blockage, caused by solid particles such as sand, of the switching mechanism is fundamentally solved; the surfaces of a spherical body and a spherical seat are coldly sprayed with cemented carbide, so that the wear resistance of the leakage-proof valve is improved; the innersurface of the whole tool |
| format | Patent |
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An outer layer component sleeves the outer side of a whole, formed by an inner layer component and a switching mechanism, in a sealing way; the switching mechanism is in elastic connection with the outer layer component; an upper jointand a lower joint are separately in threaded connection with the outer layer component; the upper joint is connected with the inner layer component in a sealing way, and the lower joint is connectedwith the switching mechanism in a sealing way. The switching mechanism is designed in a closed space, so that the problem of blockage, caused by solid particles such as sand, of the switching mechanism is fundamentally solved; the surfaces of a spherical body and a spherical seat are coldly sprayed with cemented carbide, so that the wear resistance of the leakage-proof valve is improved; the innersurface of the whole tool</description><language>chi ; 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>2019</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=20190621&DB=EPODOC&CC=CN&NR=109915073A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190621&DB=EPODOC&CC=CN&NR=109915073A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CAO YING</creatorcontrib><creatorcontrib>WANG TAO</creatorcontrib><creatorcontrib>ZHAO LIANBAO</creatorcontrib><creatorcontrib>XIU HAIMEI</creatorcontrib><creatorcontrib>GONG YONGGANG</creatorcontrib><creatorcontrib>CHEN ZENGHAI</creatorcontrib><creatorcontrib>TIAN YUAN</creatorcontrib><creatorcontrib>WU SHAOLU</creatorcontrib><creatorcontrib>XU ZHENDONG</creatorcontrib><creatorcontrib>LI WENTAO</creatorcontrib><creatorcontrib>TANG WENBO</creatorcontrib><creatorcontrib>TAN CAIYUAN</creatorcontrib><creatorcontrib>LIU YE</creatorcontrib><creatorcontrib>YIN FUSEN</creatorcontrib><creatorcontrib>TIAN FANG</creatorcontrib><creatorcontrib>LI TIE</creatorcontrib><creatorcontrib>XU KUN</creatorcontrib><title>Leakage-proof valve for mortar environment</title><description>The invention relates to the fields of well completion and production of petroleum and natural gas, in particular to a leakage-proof valve for a mortar environment. 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An outer layer component sleeves the outer side of a whole, formed by an inner layer component and a switching mechanism, in a sealing way; the switching mechanism is in elastic connection with the outer layer component; an upper jointand a lower joint are separately in threaded connection with the outer layer component; the upper joint is connected with the inner layer component in a sealing way, and the lower joint is connectedwith the switching mechanism in a sealing way. The switching mechanism is designed in a closed space, so that the problem of blockage, caused by solid particles such as sand, of the switching mechanism is fundamentally solved; the surfaces of a spherical body and a spherical seat are coldly sprayed with cemented carbide, so that the wear resistance of the leakage-proof valve is improved; the innersurface of the whole tool</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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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 | Leakage-proof valve for mortar environment |
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