US2011198098A1PendingUtilityA1
Apparatus and method for facilitating the connection of tubulars using a top drive
Est. expiryDec 24, 2018(expired)· nominal 20-yr term from priority
Inventors:Bernd-Georg Pietras
E21B 3/022E21B 21/106E21B 19/16
49
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Abstract
An apparatus and method for facilitating the connection of tubulars using a top drive, more particularly but not exclusively, intended for facilitating the connection of a section or stand of casing to a string of casing.
Claims
exact text as granted — not AI-modified1 . A method of connecting a first casing to a second casing using a top drive comprising: coupling a gripping apparatus to the top drive, the gripping apparatus having a gripping element adapted to engage the first casing; gripping the first casing; and actuating the top drive to rotate the gripping apparatus and the first casing relative to the second casing thereby connecting the first casing to the second casing.
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