Methods and compositions for using lubricants in subterranean formations, and specifically lubricants that comprise certain oils, surfactants and solvents, and methods for their use, are provided. In one embodiment, the methods include introducing a treatment fluid that includes a base fluid and a lubricant including at least one vegetable oil, at least one nonionic surfactant, and at least one cosolvent into at least a portion of a subterranean formation.

Water-in-oil (W/O) emulsion compositions having freeze-thaw stability are provided which include water, at least one hydrocarbon solvent, at least one nonionic emulsifier, and at least one freeze-thaw stabilizer which either prevents breaking of the emulsion after a freeze-thaw cycle or enables the emulsion to be re-formed following breaking after a freeze-thaw cycle by simple shaking of the emulsion composition. Preferred freeze-thaw stabilizers are polyols (e.g., glycerin), sugars (e.g., sucrose), polar aprotic solvents (e.g., dimethyl sulfoxide) and amphoteric compounds (e.g., lauryl dimethyl amine oxide). The freeze-thaw stabilizers are particularly useful in furniture care, shoe care and auto care cleaning and/or polishing products including therein water, hydrocarbon solvent(s), nonionic emulsifier(s) and additives, such as film former(s), surfactant(s), fragrance component(s) and preservative(s).

The object of the present invention is to provide a stabilizer for and a method for stabilizing an emulsion composition emulsified with a non-ionic surfactant. This invention solves the above object by providing a stabilizer for an emulsion composition emulsified with a non-ionic surfactant; the stabilizer comprising a glycosyl naringenin as an effective ingredient, and a method for stabilizing an emulsion composition emulsified with a non-ionic surfactant; the method comprising a step of having a stabilizer that comprises a glycosyl naringenin as an active ingredient mixed and/or contained in a starting material of the emulsion composition, an intermediate product of the emulsion composition, and/or the emulsion composition manufactured.

Wellbore fluids may include an oleaginous continuous phase; a non-oleaginous discontinuous phase; and a polymeric amidoamine emulsifier stabilizing the non-oleaginous discontinuous phase in the oleaginous continuous phase, wherein the polymeric amidoamine emulsifier has at least 5 repeating units. Wellbore fluids may include an oleaginous continuous phase; a non-oleaginous discontinuous phase; and a polymeric amidoamine emulsifier stabilizing the non-oleaginous discontinuous phase in the oleaginous continuous phase, wherein the polymeric amidoamine emulsifier includes at least 3 repeating units selected from allylamine, polyaminopolyamide, N-alkyl acrylamides, (meth)acrylic acid, alkyleneamine reacted with a dicarboxylic acid, alpha-olefin-alt-maleic anhydride, styrene maleic anhydride, alkylene oxide, wherein one or more amine or acid group on the repeating unit is amidized.

Wellbore fluids may include an oleaginous continuous phase; a non-oleaginous discontinuous phase; and a polymeric amidoamine emulsifier stabilizing the non-oleaginous discontinuous phase in the oleaginous continuous phase, wherein the polymeric amidoamine emulsifier has at least 5 repeating units. Wellbore fluids may include an oleaginous continuous phase; a non-oleaginous discontinuous phase; and a polymeric amidoamine emulsifier stabilizing the non-oleaginous discontinuous phase in the oleaginous continuous phase, wherein the polymeric amidoamine emulsifier includes at least 3 repeating units selected from allylamine, polyaminopolyamide, N-alkyl acrylamides, (meth)acrylic acid, alkyleneamine reacted with a dicarboxylic acid, alpha-olefin-alt-maleic anhydride, styrene maleic anhydride, alkylene oxide, wherein one or more amine or acid group on the repeating unit is amidized.

The present invention relates to a dispersant derived from anhydride functionalized polyester derived from carboxylic acid functionalized polyester. The anhydride functionalized polyester is then reacted with a multi-amine species forming amide and salt bonds. The technology allows lower reaction temperatures when the multi-amine species is present. The lower reaction temperature allows the use of a broader selection of polyester repeat units.

Wellbore fluids may include an oleaginous continuous phase; a non-oleaginous discontinuous phase; and a polymeric amidoamine emulsifier stabilizing the non-oleaginous discontinuous phase in the oleaginous continuous phase, wherein the polymeric amidoamine emulsifier has at least 5 repeating units. Wellbore fluids may include an oleaginous continuous phase; a non-oleaginous discontinuous phase; and a polymeric amidoamine emulsifier stabilizing the non-oleaginous discontinuous phase in the oleaginous continuous phase, wherein the polymeric amidoamine emulsifier includes at least 3 repeating units selected from allylamine, polyaminopolyamide, N-alkyl acrylamides, (meth)acrylic acid, alkyleneamine reacted with a dicarboxylic acid, alpha-olefin-alt-maleic anhydride, styrene maleic anhydride, alkylene oxide, wherein one or more amine or acid group on the repeating unit is amidized.

Wellbore fluids may include an oleaginous continuous phase; a non-oleaginous discontinuous phase; and a polymeric amidoamine emulsifier stabilizing the non-oleaginous discontinuous phase in the oleaginous continuous phase, wherein the polymeric amidoamine emulsifier has at least 5 repeating units. Wellbore fluids may include an oleaginous continuous phase; a non-oleaginous discontinuous phase; and a polymeric amidoamine emulsifier stabilizing the non-oleaginous discontinuous phase in the oleaginous continuous phase, wherein the polymeric amidoamine emulsifier includes at least 3 repeating units selected from allylamine, polyaminopolyamide, N-alkyl acrylamides, (meth)acrylic acid, alkyleneamine reacted with a dicarboxylic acid, alpha-olefin-alt-maleic anhydride, styrene maleic anhydride, alkylene oxide, wherein one or more amine or acid group on the repeating unit is amidized.

The present subject matter illustrates a method for accelerated in-situ chemical reduction of subsoil matter. The method comprises supplying a mixture comprising ferrous sulfide into soil pathways to biologically react with dissolved contaminates in the groundwater. Further, an organic hydrogen donor is supplied into the soil-pathways to produce anerobic-conditions to cause indigenous anaerobic bacteria to biodegrade residual concentrations of the contaminates.

A non-hydrogenated, non-palm emulsifier composition comprises: at least 20% by weight monoglycerides; less than 60% by weight of diglycerides; and from 0-80% by weight triglycerides, wherein the weight % is with respect to the total of monoglycerides, diglycerides and triglycerides, and wherein the fatty acid residues bound to the monoglycerides, diglycerides and triglycerides in the emulsifier composition comprise: from 20% to 75% by weight stearic acid (C18:0); from 15% to 60% by weight oleic acid (C18:1); and from 1% to 10% by weight palmitic acid (C16:0), based on the total weight of C8 to C24 fatty acids. The composition is obtainable by a method comprising the reaction of a fat with glycerol in the presence of an enzymatic catalyst