Buoyancy assist tool with floating piston
A downhole apparatus comprises a casing string with a fluid barrier connected in the casing string. A degradable plug is positioned in the casing string above the fluid barrier. The degradable plug and fluid barrier define upper and lower ends of a buoyancy chamber in the casing string. The degradab...
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| creator | Ahuja, Mayur Narain Helms, Lonnie Carl Parameshwaraiah, Rajesh Yuan, Min Mark Patil, Ishwar Dilip |
| description | A downhole apparatus comprises a casing string with a fluid barrier connected in the casing string. A degradable plug is positioned in the casing string above the fluid barrier. The degradable plug and fluid barrier define upper and lower ends of a buoyancy chamber in the casing string. The degradable plug may be degraded to leave an open bore through the casing string after the casing string is lowered into a wellbore. |
| format | Patent |
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The degradable plug may be degraded to leave an open bore through the casing string after the casing string is lowered into a wellbore.</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>2021</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=20210831&DB=EPODOC&CC=US&NR=11105166B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210831&DB=EPODOC&CC=US&NR=11105166B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Ahuja, Mayur Narain</creatorcontrib><creatorcontrib>Helms, Lonnie Carl</creatorcontrib><creatorcontrib>Parameshwaraiah, Rajesh</creatorcontrib><creatorcontrib>Yuan, Min Mark</creatorcontrib><creatorcontrib>Patil, Ishwar Dilip</creatorcontrib><title>Buoyancy assist tool with floating piston</title><description>A downhole apparatus comprises a casing string with a fluid barrier connected in the casing string. 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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 | Buoyancy assist tool with floating piston |
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