| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 507261000 | Organic component contains ether linkage (e.g., PEG ether, etc.) | 21 |
| 20090221455 | METHODS AND COMPOSITIONS FOR PROTECTING STEELS IN ACIDIC SOLUTIONS - An acid treatment composition is provided including a corrosion inhibitor and an optional corrosion inhibitor intensifier in an acidic solution. More specifically, the composition includes a propargylalcohol alkoxylated compound. Methods for treating wells with these acid treatment compositions are also provided that help control corrosion of the steel used in the wells during the acid treatment. | 09-03-2009 |
| 20100152071 | Method for Treating a Formation with a Solvent - The present invention includes compositions and methods for treating a hydrocarbon-bearing formation by contacting the hydrocarbon-bearing formation with a fluid that includes at least one of a polyol or polyol ether, wherein the polyol and polyol ether independently have from 2 to 25 carbon atoms; and at least one of a monohydroxy alcohol, ether, or ketone, wherein the monohydroxy alcohol, ether, and ketone independently have from 1 to 4 carbon atoms, and wherein the at least one of a polyol or polyol ether is present in the fluid at at least 50 weight percent, based on the total weight of the fluid. | 06-17-2010 |
| 20100286000 | Nano-Sized Particle-Coated Proppants for Formation Fines Fixation in Proppant Packs - A fracturing fluid, gravel pack fluid and/or frac pack fluid containing particles such as proppants, gravel and/.or sand, may contain an effective amount of a nano-sized particulate additive to fixate or reduce fines migration, where the particulate additive is an alkaline earth metal oxide, alkaline earth metal hydroxide, alkali metal oxides, alkali metal hydroxides transition metal oxides, transition metal hydroxides, post-transition metal oxides, post-transition metal hydroxides piezoelectric crystals and pyroelectric crystals. The nano-sized particulate additive is optionally bound to the particles with a coating agent such as an oil, alcohol, glycol, glycol ethers, ketones, terpenes, etc. The particle size of the magnesium oxide or other agent may be nanometer scale but may be a larger scale than nanometer but still relatively small, which scale may provide unique particle charges that help fixate the formation fines. The carrier fluid used in the treating fluid may be aqueous, brine, alcoholic or hydrocarbon-based. | 11-11-2010 |
| 20100323933 | Hydrocarbon-Based Filtercake Dissolution Fluid - Embodiments of this invention relate to a composition and a method for dissolving a filtercake in a subterranean formation comprising forming a mixture comprising a dissolution fluid and a fluid comprising hydrocarbon; introducing the mixture into a subterranean formation containing a filtercake; introducing an aqueous fluid to the mixture; and dissolving the filtercake. Embodiments of this invention also relate to further exposing the mixture to swellable packer. Embodiments of this invention relate to a method for a composition, comprising a fluid comprising hydrocarbon; and a dissolution fluid, wherein the fluid comprising hydrocarbon and dissolution fluid are combined to form a miscible mixture that dissolves a filtercake in a subterranean formation. | 12-23-2010 |
| 20110034353 | Method of Preparing a Nanoparticulate Iron - Crown Ether Complex - A stabilized nano-Fe | 02-10-2011 |
| 20110105370 | BREAKERS FOR GELLED FRACTURING FLUIDS - A fracturing fluid for a downhole environment is disclosed, comprising a water-sensitive gel; and a hydrated breaker. A fracturing fluid for a downhole environment is also disclosed, the fracturing fluid comprising a water-sensitive carrier and a breaker, the breaker comprising one or more hydrates, and wherein water of the one or more hydrates is releasable so as to act with the water-sensitive carrier to reduce the viscosity of the fluid. A method of treating a downhole environment with a fracturing fluid is also disclosed, the method comprising: providing to the downhole environment a fluid comprising a water-sensitive carrier and a breaker, the breaker comprising one or more hydrates; and allowing water from the one or more hydrates to release so as to act with the carrier to reduce the viscosity of the fluid. | 05-05-2011 |
| 20120149609 | POLYEPIHALOHYDRIN REVERSE EMULSION BREAKERS - A composition and method for resolving reverse emulsions and complex water external emulsions using one or more polyepihalohydrins, one or more polyelectrolytes thereof, and any combination thereof is disclosed and claimed. The disclosed invention may be used in any crude oil production process where such emulsions are encountered. | 06-14-2012 |
| 20120302470 | COMPOSITIONS, METHODS, APPARATUS, AND SYSTEMS FOR INCORPORATING BIO-DERIVED MATERIALS IN DRILLING AND HYDRAULIC FRACTURING - The present invention provides compositions, methods, apparatus, and systems to minimize environmental impact, water use, and overall cost of drilling and hydraulic fracturing for crude oil and natural gas. Some variations of the invention provide a fracturing-fluid additive composition comprising a water-soluble portion of a biomass-pyrolysis liquid. In some embodiments, the fracturing-fluid additive composition is substantially biodegradable and is not toxic. Some variations provide improved proppants for oil or gas well fracturing. Other variations of this invention relate to drilling-fluid additive compositions, and methods of using these compositions. This invention can significantly improve the environmental, economic, and social sustainability associated with drilling and fracturing for production of oil and gas. | 11-29-2012 |
| 20130045902 | COMPOSITION AND METHOD FOR RECOVERING HEAVY OIL - A chemical composition and methods for use in the recovery of viscous oil and other desired hydrocarbons from subterranean reservoirs and from excavated material comprising oil sands or oil shale, and to remediate contaminated soil and subterranean reservoirs. Adding the composition to viscous oil renders it pipelineable by significantly reducing its viscosity. The chemical composition comprises an alkane, an ether, and an aromatic hydrocarbon. The composition is an organic solvent mixture that interacts highly favorably with non-polar hydrocarbons but is mostly immiscible with water and acts as a diluent, lowering the viscosity and raising the specific gravity of viscous oil. Additional water and heat are not required. Methods of using the composition in subterranean reservoirs and with excavated material including oil sands or oil shale and contaminated soil and subterranean reservoirs needing remediation, are highly efficient, economical, and reduce or eliminate adverse environmental consequences. | 02-21-2013 |
| 20130150269 | LIGHT CO-SOLVENT COMPOSITIONS - Provided herein are inter alia non-surfactant aqueous compositions and methods having application in the field of enhanced oil recovery. In particular, non-surfactant compositions including light co-solvents and an alkali agent presented herein can be used, inter alia, for the recovery of a large range of crude oil compositions from challenging reservoirs. | 06-13-2013 |
| 20130157906 | Nano-Sized Particle-Coated Proppants for Formation Fines Fixation in Proppant Packs - A fracturing fluid, gravel pack fluid and/or frac pack fluid containing particles such as proppants, gravel and/.or sand, may contain an effective amount of a nano-sized particulate additive to fixate or reduce fines migration, where the particulate additive is an alkaline earth metal oxide, alkaline earth metal hydroxide, alkali metal oxides, alkali metal hydroxides transition metal oxides, transition metal hydroxides, post-transition metal oxides, post-transition metal hydroxides piezoelectric crystals and pyroelectric crystals. The nano-sized particulate additive is optionally bound to the particles with a coating agent such as an oil, alcohol, glycol, glycol ethers, ketones, terpenes, etc. The particle size of the magnesium oxide or other agent may be nanometer scale but may be a larger scale than nanometer but still relatively small, which scale may provide unique particle charges that help fixate the formation fines. The carrier fluid used in the treating fluid may be aqueous, brine, alcoholic or hydrocarbon-based. | 06-20-2013 |
| 20130244913 | COMPOSITION AND METHOD OF CONVERTING A FLUID FROM OIL EXTERNAL TO WATER EXTERNAL FOR CLEANING A WELLBORE - An environmentally acceptable water-in-oil microemulsion composition includes at least one emulsifying surfactant, at least one biodegradable hydrocarbon solvent, at least one co-solvent, at least one hydrocarbon co-surfactant, and water. The microemulsion composition may be used in a method for rendering fluids from oil external to water external. The microemulsion composition may be combined with water or a water based fluid to produce a spacer fluid utilized in removing oil and oil-residues from a surface, particularly that of wellbores in the drilling of oil and gas wells. | 09-19-2013 |
| 20130274156 | LOW INTERFACIAL TENSION SURFACTANTS FOR PETROLEUM APPLICATIONS - The invention relates to a class of novel surfactants that have utility in the recovery and/or extraction of oil. | 10-17-2013 |
| 20140087979 | INVERT EMULSION BASED COMPLETION AND DISPLACEMENT FLUID AND METHOD OF USE - A method of cleaning a wellbore prior to the production of oil or gas, wherein the wellbore has been drilled with an invert emulsion drilling mud that forms an invert emulsion filter cake is disclosed. The method may include circulating a breaker fluid into the wellbore, where the breaker fluid includes a non-oleaginous internal phase and an oleaginous external phase, where the non-oleaginous phase includes a water soluble polar organic solvent, a hydrolysable ester of a carboxylic acid, and a weighting agent, and the oleaginous external phase includes an oleaginous fluid and an emulsifier, and where the hydrolysable ester is selected so that upon hydrolysis an organic acid is released and the invert emulsion of the filter cake breaks. | 03-27-2014 |
| 20140113843 | Wellbore Servicing Compositions and Methods of Making and Using Same - A method of servicing a wellbore in a subterranean formation comprising placing a composition comprising an acid and/or an acid precursor, a surfactant, and an aqueous base fluid into contact with oil-wet solids in the wellbore; wherein the acid and/or acid precursor is selected from the group consisting of acetic acid; lactic acid; glycolic acid; oxalic acid; propionic acid; butyric acid; monochloroacetic acid; dichloroacetic acid; trichloroacetic acid; hydrochloric acid; nitric acid; sulphuric acid; sulphonic acid; sulphinic acid; phosphoric acid; phosphorous acid; phosphonic acid; phosphinic acid; sulphamic acid; aliphatic polyesters; glucono-delta-lactone; glucoheptonic lactone; poly(ε-caprolactones); poly(hydroxybutyrates); poly(anhydrides); aliphatic polycarbonates; poly(amino acids); polyphosphazenes; poly(ortho esters); or combinations thereof. | 04-24-2014 |
| 20140371115 | METHODS AND COMPOSITIONS FOR STIMULATING THE PRODUCTION OF HYDROCARBONS FROM SUBTERRANEAN FORMATIONS - Methods and compositions for stimulating of the production of hydrocarbons (e.g., formation crude oil and/or formation gas) from subterranean formations are provided. In some embodiments, the compositions are emulsions or microemulsions, which may include water, a solvent, and a surfactant. In some embodiments, methods of selecting a composition for treating an oil or gas well are provided. | 12-18-2014 |
| 20150024978 | Low-Toxicity, Low-Flammability, Environmentally-Safe, Friction Reducer Fluid For Hydraulic Fracturing - Improved hydraulic fracturing compositions are disclosed which help reduce potential negative environmental impact by hydraulic fracturing. The disclosed compositions have flammability and toxicity and are relatively safe for the environment. The compositions may also contain biodegradable components. | 01-22-2015 |
| 20160177169 | Composition of Wellbore Cleaning Agent | 06-23-2016 |
| 20160251572 | Oil Thinning Compositions and Retrieval Methods | 09-01-2016 |
| 507262000 | Organic component contains a carbocyclic group | 2 |
| 20130252858 | Low-Toxicity, Low-Flammability, Environmentally-Safe, Friction Reducer Fluid For Hydraulic Fracturing - Improved hydraulic fracturing compositions are disclosed which help reduce potential negative environmental impact by hydraulic fracturing. The disclosed compositions have flammability and toxicity and are relatively safe for the environment. The compositions may also contain biodegradable components. | 09-26-2013 |
| 20140274823 | HYDROCARBON REMOVAL COMPOSITIONS AND METHODS OF USE - Hydrocarbon recovery compounds that can be used as flowback agents and other purposes are disclosed. The compounds reduce water blockage when injected into a fractured reservoir. The composition includes a sorbitan emulsifier, ethoxylated wetting agent, and detergent. | 09-18-2014 |
