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1. (WO2018182424) IMPROVEMENTS IN AND RELATING TO CENTRALISERS

Pub. No.:    WO/2018/182424    International Application No.:    PCT/NO2018/050078
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Wed Mar 21 00:59:59 CET 2018
IPC: E21B 17/10
E21B 17/02
E21B 17/08
E21B 43/10
Applicants: EQUINOR ENERGY AS
Inventors: GRINDHAUG, Gaute
EIDEM, Morten
Title: IMPROVEMENTS IN AND RELATING TO CENTRALISERS
Abstract:
A tubular coupling device for fixing together first and second wellbore tubulars comprises: a collar arranged to secure one end of said first wellbore tubular to an adjacent end of said second wellbore tubular, wherein said tubulars are casing joints; and a centraliser mounted on said collar, wherein each tubular has a central longitudinal axis and wherein the centraliser is configured to be rotatable relative to said collar about said longitudinal axis when the collar is connected to said tubulars.