Search International and National Patent Collections

1. (WO2017192043) A DEVICE FOR PROVIDING A SEPARATING CUT IN A MATERIAL OF A WELLHEAD OF A HYDROCARBON WELL

Pub. No.:    WO/2017/192043    International Application No.:    PCT/NO2017/050105
Publication Date: Fri Nov 10 00:59:59 CET 2017 International Filing Date: Thu May 04 01:59:59 CEST 2017
IPC: E21B 29/00
E21B 29/08
E21B 29/12
E21B 23/00
E21B 31/16
E21B 31/20
Applicants: UMAC AS
Inventors: THUNHEIM, Kenneth
HERADSTVEIT, Bjørn
HORPESTAD, Olav
Title: A DEVICE FOR PROVIDING A SEPARATING CUT IN A MATERIAL OF A WELLHEAD OF A HYDROCARBON WELL
Abstract:
An arrangement (1) and a device (10) for providing a separating cut in a materia! of a wellhead of a hydrocarbon well. The device (10) comprises a support structure (14), an attachment arrangement and a cutting device (40). The attachment arrangement comprises a first attachment unit (20) and a first attachment unit (20) adapted to form an attachment to an upper portion (UP) respectively a lower portion (LP) of the wellhead (3) and the cutting device is arranged between the upper portion (UP) and the lower portion (LP). The device comprises a displacement unit (30) adapted to gener- ate a force acting to separate the first attachment unit (20) and the second attachment unit (22) from each other so that the upper portion (UP) and the lower portion (LP) of the wellhead (3) are pulled away from each other during the cutting device (40) establishing said separating cut.