Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Organic -co- compound
Patent
1995-09-21
1997-12-23
Howard, Jacqueline V.
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Organic -co- compound
508545, 507225, 507248, 507265, C10M12900, C10M13304
Patent
active
057007675
ABSTRACT:
A downhole well lubricant includes at least about 50#/bbl of a surfactant, preferably at least about 10#/bbl of a viscosifier, the balance being about 20-50% filming amine, 20-80% activator, balance being a diluent. The activator is VARSOL, coconut oil, terpene, xylene, mineral oil, turpentine, d-limonene and mixtures thereof. The surfactant is a stearate, preferably aluminum stearate, and the viscosifier is an oil compatible bentonite or polyacrylamide polymer. The resultant product is a thin pigmented solution of low viscosity. When the lubricant is dispersed in a water based drilling or completion fluid, the filming amine is attracted to and coats metal in the well. When the metal rubs against anything, such as coiled tubing rubbing against the side of the production string, a lubricious emulsion is created on the metal at locations where it is rubbing against something.
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CJD Investments, Inc.
Howard Jacqueline V.
Moller G. Turner
Toomer Cephia D.
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