Spray dried emulsifier compositions, methods for their preparation, and their use in oil-based drilling fluid compositions
AssigneeGeorgia-Pacific Resins, Inc.
InventorsPhillip Hurd, Gary Fultz, Jalandar Jadhav
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Abstract
Spray dried emulsifier compositions are described, which have desirable emulsifying and wetting characteristics. Among other advantages, the solid particulate emulsifier compositions greatly reduce transportation costs and simplify the logistics and environmental concerns associated with shipping large volumes of solvent-containing liquids. The emulsifier comprises (1) a carboxylic acid terminated fatty amine condensate or (2) a modified tall oil or (3) a blend of (1) and (2) that is converted to its alkali or alkaline earth metal salt and spray dried.
Claims29
A method for preparing a spray dried emulsifier suitable for producing a water-in-oil drilling fluid emulsion, the method comprising
- neutralizing (1) a carboxylic acid terminated fatty amine condensate or (2) a modified tall oil or (3) a blend of (1) and (2) to produce an aqueous composition;
- and
- spray drying said aqueous composition to provide said spray dried emulsifier,
- wherein said carboxylic acid terminated fatty amine condensate is prepared by reacting a fatty acid amine condensate with a polycarboxylic acid or a carboxylic acid anhydride.
A spray dried emulsifier comprising an alkali metal salt or an alkaline earth metal salt of (1) a carboxylic acid terminated fatty amine condensate or (2) a modified tall oil or (3) a blend of (1) and (2);
- wherein said carboxylic acid terminated fatty amine condensate is prepared by reacting a fatty acid amine condensate with a polycarboxylic acid or a carboxylic acid anhydride.
A method for preparing a spray dried emulsifier suitable for producing a water-in-oil drilling fluid emulsion, the method comprising
- neutralizing a component consisting essentially of a carboxylic acid terminated fatty amine condensate to produce an aqueous composition;
- and
- spray drying said aqueous composition to provide said spray dried emulsifier,
- wherein said carboxylic acid terminated fatty amine condensate is prepared by reacting a fatty acid amine condensate with a polycarboxylic acid or a carboxylic acid anhydride.
A method for preparing a spray dried emulsifier suitable for producing a water-in-oil drilling fluid emulsion, the method comprising
- neutralizing a component consisting essentially of a modified tall oil to produce an aqueous composition;
- and
- spray drying said aqueous composition to provide a spray dried emulsifier.
Dependencies are inferred from the claim text.