Rotary steerable drilling tool
The invention refers to a rotary steerable drilling tool having a tool collar and a bit shaft. The bit shaft is supported within the tool collar for pivotal movement about a fixed position along the bit shaft. Moreover, the rotary steerable drilling tool includes a variable bit shaft angulating mech...
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| creator | PISONI ATTILIO C KOTSONIS SPYRO MARTINEZ RUBEN SCHAAF STUART |
| description | The invention refers to a rotary steerable drilling tool having a tool collar and a bit shaft. The bit shaft is supported within the tool collar for pivotal movement about a fixed position along the bit shaft. Moreover, the rotary steerable drilling tool includes a variable bit shaft angulating mechanism, located within the interior of the tool collar. The variable bit shaft angulating mechanism includes a motor, an offset mandrel, and a variable offset coupling. The motor is attached to the upper end of the offset mandrel and adapted to rotate the offset mandrel. The upper end of the variable offset coupling is uncoupleably attached to an offset location of the lower end of the offset mandrel, and the upper end of the bit shaft is rotatably coupled to the variable offset coupling. The rotary steerable drilling tool also includes a torque transmitting coupling adapted to transmit torque from the tool collar to the bit shaft at the fixed position along the bit shaft. Finally, a seal system is adapted to seal between the lower end of the tool collar and the bit shaft. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_US2002175003A1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>US2002175003A1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_US2002175003A13</originalsourceid><addsrcrecordid>eNrjZJALyi9JLKpUKC5JTS1KTMpJVUgpyszJycxLVyjJz8_hYWBNS8wpTuWF0twMym6uIc4euqkF-fGpxQWJyal5qSXxocFGBgZGhuamBgbGjobGxKkCAJ9nJYw</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Rotary steerable drilling tool</title><source>esp@cenet</source><creator>PISONI ATTILIO C ; KOTSONIS SPYRO ; MARTINEZ RUBEN ; SCHAAF STUART</creator><creatorcontrib>PISONI ATTILIO C ; KOTSONIS SPYRO ; MARTINEZ RUBEN ; SCHAAF STUART</creatorcontrib><description>The invention refers to a rotary steerable drilling tool having a tool collar and a bit shaft. The bit shaft is supported within the tool collar for pivotal movement about a fixed position along the bit shaft. Moreover, the rotary steerable drilling tool includes a variable bit shaft angulating mechanism, located within the interior of the tool collar. The variable bit shaft angulating mechanism includes a motor, an offset mandrel, and a variable offset coupling. The motor is attached to the upper end of the offset mandrel and adapted to rotate the offset mandrel. The upper end of the variable offset coupling is uncoupleably attached to an offset location of the lower end of the offset mandrel, and the upper end of the bit shaft is rotatably coupled to the variable offset coupling. The rotary steerable drilling tool also includes a torque transmitting coupling adapted to transmit torque from the tool collar to the bit shaft at the fixed position along the bit shaft. Finally, a seal system is adapted to seal between the lower end of the tool collar and the bit shaft.</description><edition>7</edition><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>2002</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=20021128&DB=EPODOC&CC=US&NR=2002175003A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20021128&DB=EPODOC&CC=US&NR=2002175003A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>PISONI ATTILIO C</creatorcontrib><creatorcontrib>KOTSONIS SPYRO</creatorcontrib><creatorcontrib>MARTINEZ RUBEN</creatorcontrib><creatorcontrib>SCHAAF STUART</creatorcontrib><title>Rotary steerable drilling tool</title><description>The invention refers to a rotary steerable drilling tool having a tool collar and a bit shaft. The bit shaft is supported within the tool collar for pivotal movement about a fixed position along the bit shaft. Moreover, the rotary steerable drilling tool includes a variable bit shaft angulating mechanism, located within the interior of the tool collar. The variable bit shaft angulating mechanism includes a motor, an offset mandrel, and a variable offset coupling. The motor is attached to the upper end of the offset mandrel and adapted to rotate the offset mandrel. The upper end of the variable offset coupling is uncoupleably attached to an offset location of the lower end of the offset mandrel, and the upper end of the bit shaft is rotatably coupled to the variable offset coupling. The rotary steerable drilling tool also includes a torque transmitting coupling adapted to transmit torque from the tool collar to the bit shaft at the fixed position along the bit shaft. Finally, a seal system is adapted to seal between the lower end of the tool collar and the bit shaft.</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>2002</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJALyi9JLKpUKC5JTS1KTMpJVUgpyszJycxLVyjJz8_hYWBNS8wpTuWF0twMym6uIc4euqkF-fGpxQWJyal5qSXxocFGBgZGhuamBgbGjobGxKkCAJ9nJYw</recordid><startdate>20021128</startdate><enddate>20021128</enddate><creator>PISONI ATTILIO C</creator><creator>KOTSONIS SPYRO</creator><creator>MARTINEZ RUBEN</creator><creator>SCHAAF STUART</creator><scope>EVB</scope></search><sort><creationdate>20021128</creationdate><title>Rotary steerable drilling tool</title><author>PISONI ATTILIO C ; KOTSONIS SPYRO ; MARTINEZ RUBEN ; SCHAAF STUART</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2002175003A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2002</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>PISONI ATTILIO C</creatorcontrib><creatorcontrib>KOTSONIS SPYRO</creatorcontrib><creatorcontrib>MARTINEZ RUBEN</creatorcontrib><creatorcontrib>SCHAAF STUART</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>PISONI ATTILIO C</au><au>KOTSONIS SPYRO</au><au>MARTINEZ RUBEN</au><au>SCHAAF STUART</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Rotary steerable drilling tool</title><date>2002-11-28</date><risdate>2002</risdate><abstract>The invention refers to a rotary steerable drilling tool having a tool collar and a bit shaft. The bit shaft is supported within the tool collar for pivotal movement about a fixed position along the bit shaft. Moreover, the rotary steerable drilling tool includes a variable bit shaft angulating mechanism, located within the interior of the tool collar. The variable bit shaft angulating mechanism includes a motor, an offset mandrel, and a variable offset coupling. The motor is attached to the upper end of the offset mandrel and adapted to rotate the offset mandrel. The upper end of the variable offset coupling is uncoupleably attached to an offset location of the lower end of the offset mandrel, and the upper end of the bit shaft is rotatably coupled to the variable offset coupling. The rotary steerable drilling tool also includes a torque transmitting coupling adapted to transmit torque from the tool collar to the bit shaft at the fixed position along the bit shaft. Finally, a seal system is adapted to seal between the lower end of the tool collar and the bit shaft.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| language | 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 | Rotary steerable drilling tool |
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