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公开(公告)号:US10648298B2
公开(公告)日:2020-05-12
申请号:US15740168
申请日:2016-07-01
Applicant: SHELL OIL COMPANY
Inventor: Daniele Di Crescenzo , Mark Michael Shuster , Djurre Hans Zijsling , Rob Bosman
IPC: E21B43/10 , C10M169/04 , E21B43/30
Abstract: A tubular member (1) with a relative rough (1.5-10 μm) inner surface (5) coated solid lubricating film (10) which is transformed into a substantially viscous rubbery viscoelasto-plastic phase at temperatures in a range between 50° C. and 110° C. is expanded by moving an expansion member (24) with a relatively smooth outer surface (roughness