MEANS FOR FORMING FILM OF SOLID LUBRICANT COATING, OIL AND GAS FIELD PIPES AND THREADED CONNECTION FOR OIL AND GAS FIELD PIPES Russian patent published in 2024 - IPC C10M111/04 C08L63/00 C08K3/38 E21B17/01 F16L15/00 

FIELD: lubricants.

SUBSTANCE: invention relates to technologies related to lubrication and corrosion resistance of oil and gas field pipes. Disclosed is an agent for forming a film of a solid lubricant coating on a threaded part of oil and gas field pipes, wherein the solid lubricant is dispersed in the binder resin, the binder resin contains a prepolymer and a hardener, prepolymer is formed from one or more epoxy resins, and 70 parts by weight or more of the prepolymer is contained per 100 parts by weight of the binder resin, epoxy resin constituting the prepolymer has an epoxy equivalent of 100 or more and 500 or less, hardener is a hardener for hardening epoxy resin and is formed from an amine-based hardener, an acid anhydride hardener, a phenol-based hardener or a latent hardener, solid lubricant contains boron nitride (BN) in amount of 80% by weight or more, and BN has an average particle size of 10 mcm or less, and the total weight of the solid lubricant is 0.1-fold or more and 2-fold or less of the total weight of the binder resin; oil and gas field pipes containing a film from the disclosed medium, and a threaded joint for oil and gas field pipes containing a film from the disclosed medium.

EFFECT: creation of a film of a solid lubricant coating capable of imparting excellent corrosion resistance, as well as lubricating ability to the connection of oil and gas field pipes.

16 cl, 7 dwg, 5 tbl, 2 ex