EP 4367298 A1 20240515 - THREADED END OF A TUBULAR COMPONENT PROVIDED WITH A COATING COMPRISING A ZINC-CHROMIUM ALLOY
Title (en)
THREADED END OF A TUBULAR COMPONENT PROVIDED WITH A COATING COMPRISING A ZINC-CHROMIUM ALLOY
Title (de)
GEWINDEENDE EINER ROHRFÖRMIGEN KOMPONENTE MIT EINER BESCHICHTUNG MIT EINER ZINK-CHROM-LEGIERUNG
Title (fr)
EXTRÉMITÉ FILETÉE D'UN COMPOSANT TUBULAIRE POURVUE D'UN REVÊTEMENT COMPRENANT UN ALLIAGE ZINC-CHROME
Publication
Application
Priority
- FR 2110615 A 20211007
- EP 2022077856 W 20221006
Abstract (en)
[origin: WO2023057594A1] The present invention relates in particular to a threaded end 1, 2 of a tubular component for drilling and/or exploiting a hydrocarbon well, transporting oil and gas, transporting or storing hydrogen, carbon capture or geothermy, comprising at least one thread 3, 4 extending on its outer or inner peripheral surface, the thread of which is coated with a layer 15 comprising a zinc-chromium (Zn-Cr) alloy, the zinc (Zn) of which is the predominant element by weight, relative to the total weight of the alloy. The present invention also relates to a method for preparing a threaded end 1, 2, as defined above, of a tubular component intended for drilling and/or exploiting a hydrocarbon well, transporting oil and gas, transporting or storing hydrogen, carbon capture or geothermy, comprising at least one electrolytic deposition, on the surface of the thread 3, 4 of the end, of an aqueous composition comprising one or more zinc salts, one or more chromium salts, one or more electrolytes and one or more surfactants.
IPC 8 full level
C25D 3/56 (2006.01); C25D 5/36 (2006.01); C25D 7/00 (2006.01)
CPC (source: EP)
C25D 3/565 (2013.01); C25D 5/36 (2013.01); C25D 7/003 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2023057594 A1 20230413; AR 127310 A1 20240110; CA 3232473 A1 20230413; CN 118159691 A 20240607; EP 4367298 A1 20240515; FR 3127956 A1 20230414; FR 3127956 B1 20240531
DOCDB simple family (application)
EP 2022077856 W 20221006; AR P220102739 A 20221006; CA 3232473 A 20221006; CN 202280071706 A 20221006; EP 22801383 A 20221006; FR 2110615 A 20211007