Method and system for directional drilling and coupling sub

Method and system for directional drilling and coupling sub

The present invention provides a system and method for directional drilling of a borehole in a formation along a predetermined trajectory. The method comprising the steps of: providing a directional drilling system, comprising a rotatable drill string comprising a first drill string section and a se...

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1. Verfasser: VAN NIEUWKOOP, PIETER
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
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
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creator VAN NIEUWKOOP, PIETER
description The present invention provides a system and method for directional drilling of a borehole in a formation along a predetermined trajectory. The method comprising the steps of: providing a directional drilling system, comprising a rotatable drill string comprising a first drill string section and a second drill string section; a drill bit connected to a downhole end of the drill string; and a coupling sub comprising a first end connected to the first drill string section; a second end connected to the second drill string section; a hinge member between the first end and the second end allowing hinging of the second end relative to the first end; and locking means, operable between a hinge mode and a locking mode for locking the hinge member to prevent hinging of the second end relative to the first end; operating the directional drilling system with the locking means in the locking mode to drill a substantially straight section of the trajectory; and operating the directional drilling system with the locking means in the hinge mode to drill a curved section of the trajectory.
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The method comprising the steps of: providing a directional drilling system, comprising a rotatable drill string comprising a first drill string section and a second drill string section; a drill bit connected to a downhole end of the drill string; and a coupling sub comprising a first end connected to the first drill string section; a second end connected to the second drill string section; a hinge member between the first end and the second end allowing hinging of the second end relative to the first end; and locking means, operable between a hinge mode and a locking mode for locking the hinge member to prevent hinging of the second end relative to the first end; operating the directional drilling system with the locking means in the locking mode to drill a substantially straight section of the trajectory; and operating the directional drilling system with the locking means in the hinge mode to drill a curved section of the trajectory.</description><language>eng ; fre ; ger</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>2013</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&amp;date=20131218&amp;DB=EPODOC&amp;CC=EP&amp;NR=2674566A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20131218&amp;DB=EPODOC&amp;CC=EP&amp;NR=2674566A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>VAN NIEUWKOOP, PIETER</creatorcontrib><title>Method and system for directional drilling and coupling sub</title><description>The present invention provides a system and method for directional drilling of a borehole in a formation along a predetermined trajectory. 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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 Method and system for directional drilling and coupling sub
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