CASING RUNNING AND DRILLING SYSTEM

A method and apparatus for holding and turning a tubular and string of tubulars, such as casing (18), for make-up and drilling with the tubulars ar e disclosed. The apparatus generally includes a spear (14) and a clamping head (16), both of which are mounted to a top drive (12). The spear and the cl...

Full description

Saved in:
Bibliographic Details
Main Authors PIETRAS, BERND-GEORG, WILSON, CARL J, BAILEY, THOMAS F, VUYK, ADRIAN, JR
Format Patent
LanguageEnglish
French
Published 01.12.2009
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
Online AccessGet full text

Cover

More Information
Summary:A method and apparatus for holding and turning a tubular and string of tubulars, such as casing (18), for make-up and drilling with the tubulars ar e disclosed. The apparatus generally includes a spear (14) and a clamping head (16), both of which are mounted to a top drive (12). The spear and the clamping head can be engaged to transmit torque therebetween from the top drive. In addition, an aspect of the invention provides variable height wickers (154, 158) positioned on slips (48) to enable use of the slips with variable inner diameter (ID) and weight casing without deformation or ruptur e of the casing. Still further, a casing collar is also provided to provide reinforcement to the casing in the area of slip contact with the casing ID.
Bibliography:Application Number: CA20042517895