摘要:
A method for replacing glycol-based mutual solvents in an oil field application comprising: obtaining an alternative solvent and solvent blends and replacing all or a portion a glycol-based mutual solvent, which forms a component of an oil field formulation, with the alternative solvent or solvent blends, wherein the oil field formulation can be utilized in an oil field application.
摘要:
A method of controlling or arresting the rate of depolymerization of a polymer composition during a biocide treatment, and use of such methods in oilfield and industrial applications. Also disclosed are methods of preparing a visco-stable application fluid containing a biocide in an amount effective to reduce bacteria count, as well as additive compositions capable of reducing bacteria count in application fluids while maintaining viscosity in such fluids. Also disclosed are methods of preparing biocide-containing application fluids with improved friction reducing properties, as well as related compositions.
摘要:
The invention relates to polyfunctional polymers suitable in particular for the treatment of metal surfaces (metal finishing) and comprising: monomer units u1 bearing phosphonic acid functions; monomer units u2 bearing amine functions; and optionally monomer units u3 bearing alcohol units -OH.
摘要:
A composition comprising at least a thermoplastic polymer matrix, an alkali metal hypophosphite salt, and 0.1-30wt% of an organic dicarboxylic acid or a salt thereof, having a first pkA≤5; based on the weight of the alkali metal hypophosphite salt; and a method for preparing such composition.
摘要:
Disclosed are methods of determining the effectiveness of an asphaltene deposition inhibitor in oilfield applications. Such methods typically comprising the steps of introducing an oil well fluid into a microfluidic/millifluidic system; introducing a mixture of an asphaltene deposition inhibitor and carrier into the microfluidic/millifluidic system; introducing a precipitating agent, typically comprising heptane, into the microfluidic/millifluidic system; and optionally introducing toluene into the microfluidic/millifluidic system; then observing the presence or absence of asphaltene aggregation within the microfluidic/millifluidic system.
摘要:
The instant invention relates to a composition useful as a precursor for imparting flame-retardant properties to textile articles, comprising a condensate of : (a) a tetrakis (hydroxyorgano) phosphonium sulfate ; (b) urea or thiourea ; (c) optionally an aliphatic hydroxyl-reactive compound such an amine wherein said composition has a free formaldehyde content of less than 0,1%.
摘要:
Products and processes that are related to phosphonated polysaccharide compositions, including phosphonated polysaccharide gels, having a substituent degree of substitution with a lower limit of 0.02 and an upper limit of 3, and having a weight average molecular weight with an upper limit of 5,000,000 g/mole, as well as to oil field application or fracturing fluid compositions comprising such phosphonated polysaccharide compositions.
摘要:
The instant invention relates to a composition useful as a precursor for imparting flame-retardant properties to textile articles, comprising a condensate of : (a) a tetrakis (hydroxyorgano) phosphonium sulfate ; (b) urea or thiourea ; (c) optionally an aliphatic hydroxyl-reactive compound such an amine wherein said composition has a free formaldehyde content of less than 0,1%.