TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Emulsion: The emulsion additionally comprises an emulsifier as second additive, which is different from the first additive and preferably selected from ether carboxylic acid, fatty acid amine, an amidoamine, fatty alcohol ethoxylate, fatty acid ethoxylate, an alkylpolyglycoside and fatty alcohol. The emulsion is water-in-oil or an oil-in-water emulsion; and preferably comprises 2-98 vol.% water and 2-98 vol.% organic phase. The emulsion comprises at least one further additive selected from thickener, fluid loss additive, wetting agent, fine-particle weighting agent, salt, an alkali reserve, biocide, thinner, dispersant, an emulsifier and surfactant; where the further additive is different from the first and second additive. The total weight of the first and second additive is 0.1-25 wt.%, preferably 0.1-5 wt.%. The organic phase comprises at least one compound selected from carboxylic acid ester of formula R1a-COO-R1b; an alpha -olefin, an internal olefin and/or poly- alpha -olefin; water-insoluble, symmetrical or non-symmetrical ether of monohydric alcohols of natural or synthetic origin, which contain 1-24 carbon atoms; water-insoluble alcohol of formula R1c-OH (v); carbonic acid diester; paraffin; and an acetal.R1a=linear or branched, optionally saturated 5-23C alkyl;R1b=linear or branched, optionally saturated 1-22C alkyl;R1c=linear or branched, optionally saturated 8-24C alkyl.Preferred Components: The ether carboxylic acid in the first and/or second additives is alkoxylated, preferably ethoxylated and/or propoxylated. The ether carboxylic acid is compound of formulae RO(CH2CH2O)x(CH2CHR1O)yCH2-COOZ' (I) or RO(CH2CHR1O)y(CH2CH2O)xCH2-COOZ' (II). The alcohol is alkoxylated, preferably ethoxylated and/or propoxylated; and selected from diol, polyol, alkoxylated diol, alkoxylated polyol, optionally alkoxylated HO-R2, H-(OCHR1CH2)m(OCH2-CH2)nOR2 (IV) and H-(OCH2-CH2)n(OCHR1CH2)mOR2 (V). The first and/or second additive comprises 16-90 carbon atoms.R=optionally branched 6-50C alkyl (optionally alkoxylated or substituted with at least one -COOZ' or optionally branched 6-50C alkenyl (optionally alkoxylated or substituted with at least one -COOZ');x=0-20 (preferably 2-5);x and y=0-20;R1=1-4C alkyl;Z'=H, monovalent cation or polyvalent cation;R1=optionally saturated or branched 6-22C alkyl or alkenyl;m=0-20 (preferably 0);n=0-20 (preferably 0 or 2-5).Provided that sum of x and y, and sum of m and n is not greater than 25. EXAMPLE - No suitable example given.