摘要:
A method for treating solid materials is disclosed, where the treating compositions coats surfaces or portions of surfaces of the solid materials changing an aggregation or agglomeration propensity of the materials. Treating composition and treated solid materials are also disclosed. The methods and treated materials are ideally suited for oil field applications.
摘要:
Foam systems including a surfactant subsystem including one alpha-olefin sulfonic acid or a plurality of alkali metal alpha-olefin sulfonic acid salts and optionally, one ethoxylated alcohol sulfonate or a plurality of ethoxylated alcohol sulfonates, optionally, a pour point depressant subsystem including one glyme or a plurality of glymes and optionally, a corrosion inhibiting subsystem including one corrosion inhibitor or a plurality of corrosion inhibitors, where the system is thermally or heat stable up to 450° F., the system is environmentally benign, the system is capable of producing a foam in an aqueous medium including high amounts of crude oil, the system is efficient at low usage levels and the system is capable of reuse or at least on foam-defoam cycle. Methods for making and using including preparation of the foam systems, drilling, fracturing, completion and producing using the systems in conjunction with a gas.
摘要:
Gel compositions are disclosed including a high molecular weight water-soluble acrylamide polymer, a chromium III/carboxylate complex capable of crosslinking the polymer and a buffered aqueous solvent. The gel compositions are prepared at the surface and injected into a zone of a formation assessable by a wellbore to form a continuous single-phase gel. The gel compositions may be tailored to a specific formation by predetermining gelation rate, gel strength and/or gel stability to form gels having predetermined properties suitable for the zone.
摘要:
Novel slick water fracturing fluid compositions are disclosed, where the compositions including with slick water fracturing compositions including a partially hydrolyzed polyacrylamide polymer system within invert emulsion and an effective amount of a friction reducer booster system, where the effective amount is sufficient to reduce a drag friction of the composition by an additional amount of at least 5% in the first 30 seconds of evaluation in high salinity and low temperature environments.
摘要:
Coacervate gels having excellent shear viscosities and other properties are made with anionic or cationic polymers, a smaller amount of a surfactant having a charge opposite that of the polymer, and a hydrophobic alcohol and an effective amount of a phosphorus-containing compound sufficient to increase the viscosity of coacervate gels up to 3 times as compared to the gels in the absence of the phosphorus-containing compound. The Zeta Potential of the gel is maintained at an absolute value of at least 20. Optional gel promoting additives include betaines and amine oxides. A preferred gel comprises poly diallyl dimethyl ammonium chloride, a lesser amount of sodium lauryl sulfonate, and lauryl alcohol. The gels are particularly useful in well drilling fluids and well fracturing fluids.
摘要:
Clay is stabilized in methods for drilling of wells and other formation treatment for hydrocarbon production by the addition to the drilling or other fluid including a choline compound together with an formation control additive.
摘要:
Non-toxic, biodegradable base fluids are disclosed for use in making downhole fluids, where the base fluids include blends of paraffins, olefins, naphthenes, esters, and oxygenates, having low viscosities, having a pale-yellow color, having a flashpoint of >80° C. (175° F.) and have a pour point of about 19° F. Methods for making and using fluids include the base fluids of this invention are also disclosed
摘要:
Method for dewatering, pressure testing, hydrotreating, suppressing methane hydrate formation and suppressing solution freezing point in pipeline operations have been disclosed, where the solution used in the operations includes an effective amount of a metal formate salt. The metal formate salt solutions have a low viscosity, have a high density, have a low metals corrosivity, are non-volatile, have a low solubility in hydrocarbons, are readily biodegradable, have a low toxicity, are non-hazardous, have a low environmental impact, have a freezing point depression property forming water/formate eutectic point mixtures, and have a water-structuring and water activity modification property.
摘要:
Clay is stabilized in the drilling of wells and other formation treatment for hydrocarbon production by the addition to the drilling or other fluid including a choline compound together with an formation control additive.
摘要:
Method for dewatering, pressure testing, hydrotreating, suppressing methane hydrate formation and suppressing solution freezing point in pipeline operations have been disclosed, where the solution used in the operations includes an effective amount of a metal formate salt. The metal formate salt solutions have a low viscosity, have a high density, have a low metals corrosivity, are non-volatile, have a low solubility in hydrocarbons, are readily biodegradable, have a low toxicity, are non-hazardous, have a low environmental impact, have a freezing point depression property forming water/formate eutectic point mixtures, and have a water-structuring and water activity modification property.