Class / Patent application number | Description | Number of patent applications / Date published |
507260000 | Organic component is polycarboxylic acid, ester, or salt thereof | 19 |
20080227672 | Unsaturated Fatty Acids and Mineral Oils as Internal Breakers for VES-Gelled Fluids - Fluids viscosified with viscoelastic surfactants (VESs) may have their viscosities reduced (gels broken) by the direct or indirect action of a synergistic internal breaker composition that contains at least one first internal breaker that may be a mineral oil and a second breaker that may be an unsaturated fatty acid. The internal breakers may initially be dispersed oil droplets in an internal, discontinuous phase of the fluid. This combination of different types of internal breakers break the VES-gelled aqueous fluid faster than if one of the breaker types is used alone in an equivalent total amount. | 09-18-2008 |
20080261836 | Compositions for use in well servicing fluids - A composition useful in a well servicing fluid comprising a base fluid, comprising from 5-40 wt. % paraffins, from 5-40 wt. % olefins, from 5-20 wt. % naphthenes, from 5-20 wt. % esters, and from 2-10 wt. % oxygenates comprising primarily alcohols and ethers, the base fluid being useful as an additive alone or in conjunction with at least one other component typically used in well servicing fluids such as drilling fluids, workover fluids, packer fluids, etc. | 10-23-2008 |
20090075848 | ENVIRONMENTALLY COMPATIBLE DEFOAMING COMPOSITION FOR USE IN FLUIDS - Defoaming compositions for reducing the amount of gas present in a fluid such as a cement composition are provided. In an embodiment, a defoaming composition includes a carboxylic acid compound or an ester of a carboxylic acid compound; an alpha olefin compound; and an alcohol compound. | 03-19-2009 |
20090131286 | Method and materials for hydraulic fracturing of wells - Hydraulic fracturing of wells by injecting a degradable polymer phase as a fracturing fluid is provided. Composition and degree of polymerization of the degradable polymer and the selection of additives may be varied to adjust the viscosity, degradation time and other properties of the fracturing fluid. Viscous degradable fluid or pellets of degradable polymer may be placed in a wellbore as an internal phase in a low viscosity carrier fluid. A polymer-continuous liquid phase may be formed at a selected location in the wellbore, usually near perforations, before the polymer phase is pressured into a formation to form a hydraulic fracture. | 05-21-2009 |
20090286702 | Using Nanoparticles for Water Flow Control in Subterranean Formations - Non-aqueous carrier fluids containing nano-sized particles in high concentration are effective for zone isolation and flow control in water shutoff applications for subterranean formations. The nanoparticles interact with water and solidify it to inhibit its flow, but do not have the same effect on hydrocarbons and thus selectively assist the production of hydrocarbons while suppressing water. Suitable nanoparticles include alkaline earth metal oxides, alkaline earth metal hydroxides, alkali metal oxides, alkali metal hydroxides, transition metal oxides, transition metal hydroxides, post-transition metal oxides, post-transition metal hydroxides, piezoelectric crystals, and/or pyroelectric crystals. | 11-19-2009 |
20090286703 | Mutual Solvent-Soluble and/or Alcohol Blends-Soluble Particles for Viscoelastic Surfactant Fluids - Solid, particulate dicarboxylic acids may be fluid loss control agents and/or viscosifying agents for viscoelastic surfactant (VES) fluids in treatments such as well completion or stimulation in hydrocarbon recovery operations. The fluid loss control agents may include, but not be limited to, dodecanedioic acid, undecanedioic acid, decanedioic acid, azelaic acid, suberic acid, and mixtures thereof having a mesh size of from about 20 mesh to about 400 mesh (about 841 to about 38 microns). A mutual solvent or a blend of at least two alcohols subsequently added to the aqueous viscoelastic surfactant treating fluid will at least partially dissolve the solid, particulate dicarboxylic acid fluid loss control agents, and optionally also “break” or reduce the viscosity of the aqueous viscoelastic surfactant treating fluid. | 11-19-2009 |
20090298723 | Method for Treating Wells by Small-Size Additive-Containing Emulsions - The invention relates to a method for treating a reservoir rock, wherein the following stages are carried out:
| 12-03-2009 |
20100099587 | CARBOXYLIC ACID AND OXIDIZER CLEAN-UP COMPOSITIONS AND ASSOCIATED METHODS OF USE IN SUBTERRANEAN APPLICATIONS - Of the many methods provided herein, one method of reducing the viscosity of a viscosified treatment fluid includes: providing a clean-up composition comprising a carboxylic acid; providing a chlorite-based breaker system; providing a viscosified treatment fluid; placing the viscosified treatment fluid in a subterranean formation via a well bore penetrating the subterranean formation; contacting the viscosified treatment fluid with the clean-up composition; contacting the viscosified treatment fluid with the chlorite-based breaker; and allowing the viscosity of the viscosified treatment fluid to reduce. Also provided herein are methods that include a method of reducing polymeric residue from a subterranean formation that includes: placing a clean-up composition and a chlorite-based breaker system in a subterranean formation in contact with an amount of polymeric residue; and allowing the amount of polymeric residue present in the formation to be reduced. | 04-22-2010 |
20100240556 | Wellbore Servicing Compositions Comprising a Set Retarding Agent and Methods of Making and Using Same - A method of servicing a wellbore comprising preparing a composition comprising a calcium aluminate cement, water, a polyphosphate, a pozzolan, and a set retarding agent, wherein the set retarding agent comprises an alkali halide and a basic phosphate salt, placing the composition in the wellbore and allowing the composition to set. A composition comprising a calcium aluminate cement in an amount of from about 30 wt. % to about 60 wt. % and a set retarding agent in an amount of from about 0.1 wt. % to about 15 wt. % based upon the total weight of the composition, wherein the set retarding agent comprises an alkali halide and a basic phosphate salt in a ratio of from about 3:1 to about 1:3. | 09-23-2010 |
20100261624 | Unsaturated Fatty Acids and Mineral Oils As Internal Breakers for VES-Gelled Fluids - Fluids viscosified with viscoelastic surfactants (VESs) may have their viscosities reduced (gels broken) by the direct or indirect action of a synergistic internal breaker composition that contains at least one first internal breaker that may be a mineral oil and a second breaker that may be an unsaturated fatty acid. The internal breakers may initially be dispersed oil droplets in an internal, discontinuous phase of the fluid. This combination of different types of internal breakers break the VES-gelled aqueous fluid faster than if one of the breaker types is used alone in an equivalent total amount. | 10-14-2010 |
20120190596 | Mutual Solvent-Soluble and/or Alcohol Blends-Soluble Particles for Viscoelastic Surfactant Fluids - Solid, particulate dicarboxylic acids may be fluid loss control agents and/or viscosifying agents for viscoelastic surfactant (VES) fluids in treatments such as well completion or stimulation in hydrocarbon recovery operations. The fluid loss control agents may include, but not be limited to, dodecanedioic acid, undecanedioic acid, decanedioic acid, azelaic acid, suberic acid, and mixtures thereof having a mesh size of from about 20 mesh to about 400 mesh (about 841 to about 38 microns). A mutual solvent or a blend of at least two alcohols subsequently added to the aqueous viscoelastic surfactant treating fluid will at least partially dissolve the solid, particulate dicarboxylic acid fluid loss control agents, and optionally also “break” or reduce the viscosity of the aqueous viscoelastic surfactant treating fluid. | 07-26-2012 |
20120214715 | Degradable Perforation Balls and Associated Methods of Use in Subterranean Applications - Methods of making a degradable ball composition comprising a carboxylic acid, a fatty alcohol, a fatty acid salt, a fatty ester, or a combination thereof comprising the steps of: forming a thermoplastic mass, and allowing the thermoplastic mass to cool as to form a degradable ball that is introduced in subterranean treatments by a carrier fluid. | 08-23-2012 |
20120245062 | USE OF HIGH RATIO AQUEOUS ALKALI SILICATES FOR PROFILE MODIFICATION, WATER CONTROL AND STABILIZATION - Soluble silicates are commonly used to block and strengthen permeable zones in subterranean formations. These applications include conformance for oil field, grouting for the construction industry and water shut-off for mining. It was discovered that set times and set properties could be improved by using novel, high ratio alkali silicates. Ratio being defined as the mol ratio of SiO | 09-27-2012 |
20130137611 | ADDITIVE COMPOSITION FOR WELL TREATMENT FLUIDS - Described is an additive composition made up of at least one dibasic ester, at least one non-ionic surfactant, at least one terpene or terpene derivative and optionally, at least one polyalkylene glycol and/or water. The composition is useful as an additive for well treatment fluids used for cleaning or stimulation of oil or gas wells. | 05-30-2013 |
20140128296 | TUNABLE POLYMERIC SURFACTANTS FOR MOBILIZING OIL INTO WATER - The present invention relates to compositions comprising tunable polymeric surfactants and methods for enhanced oil recovery. | 05-08-2014 |
20150126418 | HYDRAULIC FLUIDS CONTAINING DIBASIC ESTERS AND METHODS FOR USE - A functional fluid composition comprising a mixture of: (a) at least one base fluid component; and (b) an additive component comprising a blend of dibasic esters. The functional fluid can optionally comprise second additive components. The blend of dibasic esters comprises two or more of dialkyl methylglutarate, dialkyl adipate, dialkyl ethylsuccinate, dialkyl succinate, dialkyl glutarate. | 05-07-2015 |
20150307771 | WELL SERVICING FLUID - A nano-dispersion well servicing fluid is disclosed. The well servicing fluid is formulated with components comprising: nanoparticles comprising at least one material chosen from aluminum oxides, aluminum hydroxides, aluminum hydroxyoxides, zirconium oxides, zirconium hydroxides, zirconium hydroxyoxides, wherein the concentration of nanoparticles is greater than 0.5% by weight based on the total weight of the nano-dispersion well servicing fluid. The well servicing fluid also comprises an aqueous base continuous phase. Methods of employing the nano-dispersion to service a wellbore are also disclosed. | 10-29-2015 |
20160075934 | WATER-IN-OIL MICROEMULSIONS FOR OILFIELD APPLICATIONS - A well treatment microemulsion includes an oil external phase, an internal aqueous phase and a hydrophilic surfactant. The surfactant has a hydrophile lipophile balance of between 8-18. The oil external phase may include d-Limonene, xylenes, light mineral oil, or kerosene. The surfactant is configured to emulsify the water of the internal aqueous phase into the oil of the external (continuous) phase. The surfactant may include polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan tristearate, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan monolaurate or mixtures therebetween. The use of hydrophilic surfactants to emulsify an internal aqueous phase within an oil external microemulsion produces unexpected and beneficial results. | 03-17-2016 |
20160200962 | Aliphatic Polycarbonate-Based Surface Active Agents | 07-14-2016 |