TECHNIQUE FOR EXPANDING TUBULAR STRUCTURES

A system for expanding tubular structures. The system comprises a mandrel th at is moved through the center of a tubular structure to increase the diameter of the tubular structure via deformation. The system utilizes an expansion device having a mandrel wi th multiple segments moved between a contr...

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Bibliographic Details
Main Authors JOHNSON, CRAIG D, MILLS, DENNIS L, MCCLURKIN, JOEL
Format Patent
LanguageEnglish
French
Published 30.01.2007
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
PERFORMING OPERATIONS
PUNCHING METAL
TRANSPORTING
WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Summary:A system for expanding tubular structures. The system comprises a mandrel th at is moved through the center of a tubular structure to increase the diameter of the tubular structure via deformation. The system utilizes an expansion device having a mandrel wi th multiple segments moved between a contracted state and an expanded state. In one embodiment, the mandrel segments are spring biased to permit a degree of independent movemen t of each mandrel segment with respect to the other mandrel segments.
Bibliography:Application Number: CA20022414432