Abstract:
The present invention is related to the preparation and use of moderately cross-linked (chin-extended), reverse (or “inverted”) surfactants, wherein the reverse surfactants comprise a polyether backbone with oligomeric or polymeric silicon-containing substitutions along the backbone. The present invention further describes crosslinked versions of the inverted surfactants, reaction products of alkenyl (allyl, vinyl, methallyl) functional copolymers (polyethers), silicone hydrides and cross-linking agents, which may be optionally reacted with water to react the remaining alkoxy groups. The crosslinking agent contains either SiH or Si-alkoxy groups or both. The compounds of the present invention exhibit only moderate cross-linking in order to be soluble or dispersible in appropriate solvents.
Abstract:
A composition for treating an aqueous fluid includes an ionic polyacrylamide and a silicon polyether. The composition can be an oil-in-water emulsion or a water-in-oil emulsion. The ionic polyacrylamide can he an anionic polyacrylamide or a cationic polyacrylamide. The composition can he employed, for example, as a friction reducing additive for water based fracturing fluid, or a drilling mud additive.
Abstract:
The present invention provides for a demulsifying composition comprising the reaction product of an oxirane or oxetane compound (I) comprising at least two oxirane or oxetane groups; a compound (II) comprising silicon and one or more amino groups; and optionally a polyamine (III); and a secondary amine (IV).
Abstract:
There is provided herein a low foam surfactant composition comprising: (a) di-trisiloxane alkoxylate component of the general formula (I): (R1R2R3SiO)2(R4)Si—R5—Si(R6)(OSiR7R8R9)2 (I); and, (b) mono-trisiloxane alkoxylate component of the general formula (II): (R12R13R14SiO)2Si(R15)R16 (II) wherein di-trisiloxane alkoxylate (I) is soluble in mono-trisiloxane alkoxylate and methods of making the same.
Abstract:
A composition includes a non-crosslinked reaction product of an oxirane or oxetane compound (I) comprising at least two oxirane or oxetane groups; a compound (II) comprising silicon and one or more amino groups; and optionally a polyamine (III); and a secondary amine (IV).
Abstract:
There is provided herein a low foam surfactant composition comprising: (a) di-trisiloxane alkoxylate component of the general formula (I): (R1R2R3SiO)2(R4)Si—R5—Si(R6)(OSiR7R8R9)2 (I); and, (b) mono-trisiloxane alkoxylate component of the general formula (II): (R12R13R14SiO)2Si(R15)R16 (II) wherein di-trisiloxane alkoxylate (I) is soluble in mono-trisiloxane alkoxylate and methods of making the same.
Abstract:
A composition for treating an aqueous fluid includes an ionic polyacrylamide and a silicon polyether. The composition can be an oil-in-water emulsion or a water-in-oil emulsion. The ionic polyacrylamide can be an anionic polyacrylamide or a cationic polyacrylamide. The composition can be employed, for example, as a friction reducing additive for water based fracturing fluid, or a drilling mud additive.
Abstract:
The present invention is related to the preparation and use of moderately cross-linked (chin-extended), reverse (or “inverted”) surfactants, wherein the reverse surfactants comprise a polyether backbone with oligomeric or polymeric silicon-containing substitutions along the backbone. The present invention further describes crosslinked versions of the inverted surfactants, reaction products of alkenyl (allyl, vinyl, methallyl) functional copolymers (polyethers), silicone hydrides and cross-linking agents, which may be optionally reacted with water to react the remaining alkoxy groups. The crosslinking agent contains either SiH or Si-alkoxy groups or both. The compounds of the present invention exhibit only moderate cross-linking in order to be soluble or dispersible in appropriate solvents.
Abstract:
Water penetration into a siliceous subterranean hydrocarbon fluid-bearing formation is inhibited by introducing into the formation organosiloxane possessing at least one alkoxy group directly bonded to a silicon atom.
Abstract:
Water penetration into a siliceous subterranean hydrocarbon fluid-bearing formation is inhibited by introducing into the formation organosiloxane possessing at least one alkoxy group directly bonded to a silicon atom.