Patent classifications
C09K8/506
TEMPERATURE-STABLE PARAFFIN INHIBITOR COMPOSITIONS
Disclosed are compositions including up to 20 wt % of a paraffin inhibiting polymer, a refined petroleum distillate and one or more low Log P molecules, wherein the compositions are stable and flow at a temperature between about 0° C. and −40° C., in many cases between about −20° C. and −40° C. The low Log P molecules are non-polymeric, have a Log P of less than 1, are liquids at 20° C. (1 atm), and have boiling points over 60° C., in many cases over 100° C. The compositions are useful paraffin inhibitor concentrates for use in the petroleum industry wherein the concentrates are stable, pumpable, and pourable at temperatures as low as −40° C. and as high as 60° C.
ENCAPSULATION OF HYDROPHILIC ADDITIVES
The instant invention relates to a process for the encapsulation of a non-amine hydrophilic compound C, comprising the steps of: (E1) providing a reverse emulsion containing: an oil phase (O), comprising a curable mixture of isocyanate and polyalkyldiene hydroxylated or polyol dispersed in said oil phase, drops of an aqueous phase W.sup.1, containing: said non-amine hydrophilic compound C; and at least 5% by weight of a compound C carrying more than 2 amine groups; (E2) pouring the reverse emulsion of step (E1) in a second water phase W.sup.2 to make a multiple emulsion water/oil/water; and, then, (E3) curing into polyurethane all or part of the curable mixture contained in the oil phase.
Nanoparticle-based shear-thickening materials
A composition includes an aqueous colloidal dispersion of a nanomaterial. The nanomaterial includes, disposed on a surface of the nanomaterial, a first coupling agent including silane and a functional group including an amino acid. The nanomaterial includes, disposed on the surface of the nanomaterial, a second coupling agent including silane and a polymer with a molecular weight between 1,000 and 20,000.
Nanoparticle-based shear-thickening materials
A composition includes an aqueous colloidal dispersion of a nanomaterial. The nanomaterial includes, disposed on a surface of the nanomaterial, a first coupling agent including silane and a functional group including an amino acid. The nanomaterial includes, disposed on the surface of the nanomaterial, a second coupling agent including silane and a polymer with a molecular weight between 1,000 and 20,000.
Methods for producing seawater based, high temperature viscoelastic surfactant fluids with low scaling tendency
Embodiments of the present disclosure are directed to a method of producing a viscoelastic surfactant (VES) fluid, the VES fluid comprising desulfated seawater. The method of producing the VES fluid comprises adding an alkaline earth metal halide to seawater to produce a sulfate precipitate. The method further comprises removing the sulfate precipitate to produce the desulfated water. The method further comprises adding a VES and one or more of a nanoparticle viscosity modifier or a polymeric modifier to the desulfated seawater. Other embodiments are directed to VES fluids that maintain a viscosity greater than 10 cP at temperatures above 250° F.
Fluid Efficiency and Flow Back Enhancer
The invention provides Formula I compounds, and its compositions, wherein HG, X, L, Y, m, and n are defined in the specification, as fluid efficiency and flow back enhancers for use in a method of treating subterranean formations.
Weakly consolidated, semi consolidated formation, or unconsolidated formations treated with zeta potential altering compositions to form conglomerated formations
Weakly consolidated formations, semi consolidated formations, or unconsolidated formations treated with an aggregating, agglomerating or conglomerating composition, which alters an aggregation or zeta potential of formation surfaces and particulate to increase a maximum sand free production rate of producing formations and increases the injection rate of injection formations.
Weakly consolidated, semi consolidated formation, or unconsolidated formations treated with zeta potential altering compositions to form conglomerated formations
Weakly consolidated formations, semi consolidated formations, or unconsolidated formations treated with an aggregating, agglomerating or conglomerating composition, which alters an aggregation or zeta potential of formation surfaces and particulate to increase a maximum sand free production rate of producing formations and increases the injection rate of injection formations.
Stabilization of iodide-containing brines and brine mixtures
A composition for use in a wellbore activity, the composition comprising an iodide brine, the iodide brine operable to be used in the wellbore activity, the iodide brine comprising an iodide salt, an aqueous fluid, and an iodide protectant, the iodide protectant operable to prevent the presence of free iodine in the iodide brine, where the iodide protectant is present in the range between 0.001 v/v % and 5 v/v % of the iodide brine.
Stabilization of iodide-containing brines and brine mixtures
A composition for use in a wellbore activity, the composition comprising an iodide brine, the iodide brine operable to be used in the wellbore activity, the iodide brine comprising an iodide salt, an aqueous fluid, and an iodide protectant, the iodide protectant operable to prevent the presence of free iodine in the iodide brine, where the iodide protectant is present in the range between 0.001 v/v % and 5 v/v % of the iodide brine.