Bottom sand washing service tool for sand prevention of small cased well
The utility model relates to a bottom sand washing service tool for sand prevention of a small cased well. The upper port of the tubular column guide shoe is screwed with a ball seat; the upper port of the ball seat is provided with a ball seat female thread; male threads are arranged at the lower e...
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| creator | WANG WEI LI XING ZHOU XINGBO KANG YUYANG BAI YOUGUO LI FANLEI XU WENMIN REN XIANGYANG |
| description | The utility model relates to a bottom sand washing service tool for sand prevention of a small cased well. The upper port of the tubular column guide shoe is screwed with a ball seat; the upper port of the ball seat is provided with a ball seat female thread; male threads are arranged at the lower end of the ball seat; a ball seat throat is arranged at the upper end of the ball seat center hole; ahorn mouth with a small upper part and a large lower part is arranged below the throat of the ball seat and is sealed with a steel ball; the lower edge of the steel ball abuts against the center of the baffle. A plurality of baffle water permeable holes are uniformly distributed in the center and the circumference of the baffle; a spring is supported at the lower end of the baffle and arranged onthe centralizing flow guide sleeve in a sleeving mode, a certain distance is reserved between an upper end opening of the centralizing flow guide sleeve and the bottom of the baffle, the lower end ofthe centralizing flow guid |
| format | Patent |
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The upper port of the tubular column guide shoe is screwed with a ball seat; the upper port of the ball seat is provided with a ball seat female thread; male threads are arranged at the lower end of the ball seat; a ball seat throat is arranged at the upper end of the ball seat center hole; ahorn mouth with a small upper part and a large lower part is arranged below the throat of the ball seat and is sealed with a steel ball; the lower edge of the steel ball abuts against the center of the baffle. A plurality of baffle water permeable holes are uniformly distributed in the center and the circumference of the baffle; a spring is supported at the lower end of the baffle and arranged onthe centralizing flow guide sleeve in a sleeving mode, a certain distance is reserved between an upper end opening of the centralizing flow guide sleeve and the bottom of the baffle, the lower end ofthe centralizing flow guid</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=20191119&DB=EPODOC&CC=CN&NR=209654011U$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25553,76306</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20191119&DB=EPODOC&CC=CN&NR=209654011U$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WANG WEI</creatorcontrib><creatorcontrib>LI XING</creatorcontrib><creatorcontrib>ZHOU XINGBO</creatorcontrib><creatorcontrib>KANG YUYANG</creatorcontrib><creatorcontrib>BAI YOUGUO</creatorcontrib><creatorcontrib>LI FANLEI</creatorcontrib><creatorcontrib>XU WENMIN</creatorcontrib><creatorcontrib>REN XIANGYANG</creatorcontrib><title>Bottom sand washing service tool for sand prevention of small cased well</title><description>The utility model relates to a bottom sand washing service tool for sand prevention of a small cased well. 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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 | Bottom sand washing service tool for sand prevention of small cased well |
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