Shell Oil Comapny

Tubefuse Applications B.v.

Mark Wilson Anderson

Djurre Hans Zijsling

Johannis Josephus Den Boer

Klisthenis Dimitriadis

Anthony Thomas Cole

Jan Erik Vollebregt

Tubular ends are heated to a predetermined temperature above 1200 degrees Celsius and surrounded by a shield gas when the tubular ends are pressed together to form forge welded tubular ends. The forge welded tubular ends are then cooled down rapidly from said temperature above 1200 to at most 600 degrees Celsius within 3 minutes after the forge welding operation.

Forge welding tubulars

A method of joining expandable tubulars includes joining the tubulars by forge welding and flushing a reducing flushing gas around the heated tubular ends during at least part of the forge welding operation such that oxides are removed from the forge welded tubular ends and the amount of irregularities between the forge welded tubular ends is limited.

Joining expandable tubulars

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Rijswijk, Netherlands

Mark Wilson Anderson