Preserved lecithin-containing compositions

Claim 1

A COMPOSITION FOR PREPARING EMULSION WELL FLUIDS COMPRISING LECITHIN DISPERSERD ON A FINELY-DIVIDED, SOLID ABSORBENT CARRIER, SAID CARRIER BEING PRESENT IN AN AMOUNT SUFFICIENT TO ABSORB SAID LECITHIN THEREON, AND A PRESERVATIVE ALSO DISPERSED ON SAID CARRIER IN INTIMATE CONTACT WITH SAID LECITHIN AND SELECTED FROM THE GROUP CONSISTING OF (A) PHENYLPHENOL, (B) ALKALI METAL PHENYLPHENATE, (C) PARA PARA''-ISOPROPYLIDENEDIPHENOL, (D) PHENOL, (E) A MIXTURE OF MONO-; DI-AND TRI-(ALPHAMETHYLBENZYL) PHENOL, (F) PHENYL MERCAPTAN, (G) PARA-AMINO-PHENOL, (H) OCTYLPHENOL, (I) N,N'',N"-TRIAMINE1,3,5-TRIAZINE, (J) 1,2,4-HEXYLRESORCINOL, (K) A MIXTURE OF PHENYL MERCURIC ACETATE AND AN ALKALI METAL PHENYLPHENATE, (L) TRICRESYL PHOSPHATE, (M) 2,2''-METHYLENEBIS(4-ETHYL - 6-TERT-BUTYLPHENOL, (N) BUTYLPHENOL, (O) 2,3,4,6-TETRACHLOROPHENOL, (P) CREOSOTE, (Q) ORTHOBENZYLPARACHLOROPHENOL, AND (R) DIHYDROXYDICHLORODIPHENYLMETHANE, THE SELECTED ONE OF PRESERVATIVE (A) TO (N) INCLUSIVE BEING PRESENT IN AN AMOUNT OF AT LEAST 0.2 PERCENT BY WEIGHT OF SAID LECITHIN, (O) IN AN AMOUNT OF AT LEAST 10 PERCENT BY WEIGHT OF SAID LECITHIN, (P) IN AN AMOUNT OF AT LEAST 20 PERCENT BY WEIGHT OF SAID LECITHIN AND (Q) AND (R) IN AN AMOUNT OF AT LEAST 0.1 PERCENT BY WEIGHT OF SAID LECITHIN.