Device for the transfer of plugging and grouting materials to, and their processing at, a pre-set level in a well
PCT No. PCT/SU81/00018 Sec. 371 Date Oct. 18, 1982 Sec. 102(e) Date Oct. 18, 1982 PCT Filed Feb. 23, 1981 PCT Pub. No. WO82/02923 PCT Pub. Date Sep. 2, 1982.A device for the transfer of plugging and grouting materials to, and their processing at, a pre-set level in a well comprises a pipe container...
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| creator | PYAKKONEN BORIS J LIPATOV NIKOLAI K PATRUSHEV GENNADY V YAKOVLEV ARIAN M TATEVOSYAN RUBEN A TERESCHENKO LEV A |
| description | PCT No. PCT/SU81/00018 Sec. 371 Date Oct. 18, 1982 Sec. 102(e) Date Oct. 18, 1982 PCT Filed Feb. 23, 1981 PCT Pub. No. WO82/02923 PCT Pub. Date Sep. 2, 1982.A device for the transfer of plugging and grouting materials to, and their processing at, a pre-set level in a well comprises a pipe container which is rigidly mechanically connected by means of series installed limiter and cylinder to a drilling string. In the lower part of the pipe container, which is stopped by a plug, is installed a splitter and in the upper part, above waterproofing envelopes, is installed for axial movement along the pipe container a main piston having a rod to which is rigidly secured a retainer engageable with the limiter, and an auxiliary piston installed in the cylinder for axial movement therein, which is hydraulically coupled to the drilling string. The retainer is provided on the rod at a distance from the main piston to retain the main piston in its lowermost position immediately above the splitter. |
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No. WO82/02923 PCT Pub. Date Sep. 2, 1982.A device for the transfer of plugging and grouting materials to, and their processing at, a pre-set level in a well comprises a pipe container which is rigidly mechanically connected by means of series installed limiter and cylinder to a drilling string. In the lower part of the pipe container, which is stopped by a plug, is installed a splitter and in the upper part, above waterproofing envelopes, is installed for axial movement along the pipe container a main piston having a rod to which is rigidly secured a retainer engageable with the limiter, and an auxiliary piston installed in the cylinder for axial movement therein, which is hydraulically coupled to the drilling string. The retainer is provided on the rod at a distance from the main piston to retain the main piston in its lowermost position immediately above the splitter.</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>1984</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=19840911&DB=EPODOC&CC=US&NR=4470457A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19840911&DB=EPODOC&CC=US&NR=4470457A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>PYAKKONEN; BORIS J</creatorcontrib><creatorcontrib>LIPATOV; NIKOLAI K</creatorcontrib><creatorcontrib>PATRUSHEV; GENNADY V</creatorcontrib><creatorcontrib>YAKOVLEV; ARIAN M</creatorcontrib><creatorcontrib>TATEVOSYAN; RUBEN A</creatorcontrib><creatorcontrib>TERESCHENKO; LEV A</creatorcontrib><title>Device for the transfer of plugging and grouting materials to, and their processing at, a pre-set level in a well</title><description>PCT No. PCT/SU81/00018 Sec. 371 Date Oct. 18, 1982 Sec. 102(e) Date Oct. 18, 1982 PCT Filed Feb. 23, 1981 PCT Pub. 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No. WO82/02923 PCT Pub. Date Sep. 2, 1982.A device for the transfer of plugging and grouting materials to, and their processing at, a pre-set level in a well comprises a pipe container which is rigidly mechanically connected by means of series installed limiter and cylinder to a drilling string. In the lower part of the pipe container, which is stopped by a plug, is installed a splitter and in the upper part, above waterproofing envelopes, is installed for axial movement along the pipe container a main piston having a rod to which is rigidly secured a retainer engageable with the limiter, and an auxiliary piston installed in the cylinder for axial movement therein, which is hydraulically coupled to the drilling string. The retainer is provided on the rod at a distance from the main piston to retain the main piston in its lowermost position immediately above the splitter.</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 | Device for the transfer of plugging and grouting materials to, and their processing at, a pre-set level in a well |
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