METHODS AND APPARATUS FOR HANDLING AND DRILLING WITH TUBULARS OR CASING

The present invention provides a method and apparatus for handling tubulars and drilling with tubulars such as casing into a formation. In one aspect of the invention, the apparatus comprises a circulating head and a cementing he ad operatively connectible to a gripping member (220). The circulating...

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Bibliographic Details
Main Authors GIROUX, RICHARD L, VUYK, ADRIAN, JR, THOMPSON, GARY, SHAHIN, DAVID
Format Patent
LanguageEnglish
French
Published 16.09.2004
Edition7
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
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Summary:The present invention provides a method and apparatus for handling tubulars and drilling with tubulars such as casing into a formation. In one aspect of the invention, the apparatus comprises a circulating head and a cementing he ad operatively connectible to a gripping member (220). The circulating head (3) is used to circulate drilling fluid while drilling with casing (400), and th e cementing head (4) is used to cement the casing string within the formation at a desired depth. The present invention also relates to methods and apparatus for isolating a tensile load from a drilling apparatus rotated by a top driv e. In one aspect, the present invention provides a load isolator apparatus havi ng an isolator body operatively connected to the top drive and a torque body at least partially disposed in the isolator body. In operation, the bearing assembly transfers the tensile load from the torque body to the isolator bod y.
Bibliography:Application Number: CA20042517990