Shell Oil Comapny

Baker Hughes Corporation

Matthew Jay Jabs

Mark Kendall Adam

Michael A Carmody

Dennis G Jiral

Harold E Payne

Robert O'brien

Djurre Hans Zijsling

Antonius Leonardus Maria Wubben

A hybrid push and pull method for expanding a tubular in a wellbore utilizes an expansion assembly with a sealed and another, optionally expandable, cone, wherein during at least part of the expansion process the sealed cone is moved up through the tubular by a combination of push and pull forces and the push force is generated by pumping fluid at an elevated pressure into a space between the bottom plug and the expansion assembly. This allows staged expansion of the tubular in a hard rock formation and/or of a tubular surrounded by a hardened cement lining and/or of a pair of partially overlapping nested tubular ends.

Hybrid push and pull method and system for expanding well tubulars

Growing community of inventors

Katy, TX, United States of America

Matthew Jay Jabs