Class / Patent application number | Description | Number of patent applications / Date published |
507252000 | Organic component contains sulfur attached directly or indirectly to carbon by nonionic bonding | 31 |
20090131285 | METHOD OF TREATING SUBTERRANEAN FORMATIONS BY IN-SITU HYDROLYSIS OF ORGANIC ACID ESTERS - An oil or gas well penetrating a subterranean formation, such as a carbonate formation, is treated with a well treatment fluid which contains an organic ester. The fluid may be an oil-in-water emulsion of the organic ester and an emulsifier or a homogeneous solution of organic ester and a water/mutual solvent solution. Acid is produced in-situ by hydrolysis of the organic ester. | 05-21-2009 |
20110028359 | METHOD AND COMPOSITION FOR ENHANCED HYDROCARBONS RECOVERY - A method of treating a hydrocarbon containing formation, comprising (a) providing a composition to at least a portion of the hydrocarbon containing formation, wherein the composition comprises a derivative selected from the group consisting of a carboxylate or a sulfate or glycerol sulfonate of an ethoxylated/propoxylated primary alcohol having a branched aliphatic group with an average carbon number from 10 to 24 and having an average number of branches per aliphatic group of from 0.7 to 2.5 and having at least 0.5 moles of propylene oxide per mole of primary alcohol and having at least 0.5 moles of ethylene oxide per mole of primary alcohol; and (b) allowing the composition to interact with hydrocarbons in the hydrocarbon containing formation. | 02-03-2011 |
507253000 | Organic component contains ether linkage (i.e., C-O-C) | 16 |
20160177172 | USE OF ALKOXYLATED ALCOHOL ANIONIC SURFACTANT IN ENHANCED OIL RECOVERY | 06-23-2016 |
507254000 | The sulfur is part of a sulfate group | 9 |
20090181868 | Non-Emulsifying Anti-Sludge Composition for Use in the Acid Treatment of Hydrocarbon Wells - A composition for inhibiting or preventing the formation of emulsions and asphaltic sludges in the presence of treating acids during the acid stimulation of hydrocarbon wells is provided. The composition includes an alkyl aryl sulfonic acid or salt thereof, an acetylenic alcohol, an alkyl diphenyl oxide sulfonic acid or derivative thereof, in an alkyl alcohol solvent. The disclosed compositions can be used in an acid treatment solution, such as 15% hydrochloric acid, to prevent and resolve live acid and spent acid emulsions for a wide range of crude oils. | 07-16-2009 |
20110190174 | Styrylphenol Alkoxylate Sulfate as a New Surfactant Composition for Enhanced Oil Recovery Applications - A method of making a styryl phenol alkoxylate sulfate surfactant by alkoxylation of a styryl phenol using propylene oxide (PO) and/or ethylene oxide (EO) followed by a sulfation reaction. The styrylphenol alkoxylate sulfate surfactant of the present invention is made by a facile and inexpensive method. The large hydrophobe surfactants of the present invention find uses in EOR applications where it is used for solubilization and mobilization of oil optionally containing asphaltene, and for environmental cleanup. Further, the unsulfated version of the large hydrophobe styrylphenol alkoxylate surfactant of the present invention can be used as an ultra-high molecular weight non-ionic surfactant. | 08-04-2011 |
20110263467 | PROCESS FOR PRODUCING MINERAL OIL USING SURFACTANTS BASED ON A MIXTURE OF C32 GUERBET-, C34 GUERBET-, C36 GUERBET-CONTAINING ALKYL ALKOXYLATES - The present invention relates to a process for mineral oil extraction by means of Winsor type III microemulsion flooding, in which an aqueous surfactant formulation comprising at least three ionic surfactants which are different with regard to the alkyl moiety (R | 10-27-2011 |
20110281779 | Novel Anionic Polyalkoxy Group Comprising Surfactants on Basis of Guerbet-Alcohols, Method of Manufacture and Use in Enhanced Oil Recovery (EOR) Applications - Compositions and methods of synthesis of anionic surfactants by alkoxylation of a Guerbet alcohol (GA) having 12 to 36 carbon atoms using butylene oxide, and optionally propylene oxide and/or ethylene oxide followed by the incorporation of a terminal anionic group are described herein. The GA of the present invention is made by a facile and inexpensive method that involves high temperature base catalyzed dimerization of alcohols with 6 to 18 carbon atoms. The large hydrophobe ether surfactants of the present invention find uses in enhanced oil recovery (EOR) applications where it is used for solubilization and mobilization of oil and for environmental cleanup. Further, the hydrophobe alkoxylated GA without anionic terminal group can be used as an ultra-high molecular weight non-ionic surfactant. | 11-17-2011 |
20130102505 | PROCESS FOR PRODUCING MINERAL OIL USING SURFACTANTS BASED ON A MIXTURE OF C28 GUERBET, C30 GUERBET, C32 GUERBET-CONTAINING HYDROCARBYL ALKOXYLATES - The present invention relates to a surfactant mixture comprising at least three ionic surfactants which differ in terms of the hydrocarbyl moiety (R | 04-25-2013 |
20140005082 | METHOD AND COMPOSITION FOR ENHANCED HYDROCARBONS RECOVERY FROM A FORMATION CONTAINING A CRUDE OIL | 01-02-2014 |
20140073541 | SURFACTANTS FOR ENHANCED OIL RECOVERY - Surfactant compositions useful for oil recovery comprise from 10 to 80 wt. % of a prapoxylated C12-C20 alcohol sulfate, from 10 to 80 wt. % of a C12-C20 internal olefin sulfonate, and from 0.1 to 10 wt. % of an ethoxylated C4-C12 alcohol sulfate. A minor proportion of the ethoxylated alcohol sulfate reduces or eliminates the need to rely on costly cosolvents for achieving good performance in enhanced oil recovery processes. Low interfaoial tensions and low microemulsion viscosities can be achieved when the ethoxylated alcohol sulfate accompanies the propoxytated alcohol sulfate and internal olefin sulfonate. Aqueous concentrates comprising water and the surfactant compositions described above are also disclosed. Dilution of the surfactant composition or aqueous concentrate with water or brine to the desired anionic actives level provides an injectable composition useful for EOR applications. Stable, low-viscosity oil-in-water microemulsions comprising crude oil, water, and the surfactant compositions are also disclosed. | 03-13-2014 |
20160177173 | METHOD OF TREATING A HYDROCARBON CONTAINING FORMATION | 06-23-2016 |
20160376493 | PROCESS FOR PRODUCING MINERAL OIL USING SURFACTANTS BASED ON A MIXTURE OF C24 GUERBET, C26 GUERBET, C28 GUERBET-CONTAINING HYDROCARBYL ALKOXYLATES - The present invention relates to a surfactant mixture comprising at least three ionic surfactants which differ in terms of the hydrocarbyl moiety (R | 12-29-2016 |
507255000 | The sulfur is part of a sulfonate group | 6 |
20110021389 | METHOD AND COMPOSITION FOR ENHANCED HYDROCARBONS RECOVERY - A method of treating a hydrocarbon containing formation, comprising (a) providing a hydrocarbon recovery composition to at least a portion of the hydrocarbon containing formation, wherein the hydrocarbon recovery composition comprises a propoxylated composition which comprises (1) a glycerol sulfonate of a propoxylated primary alcohol having a branched aliphatic group with an average carbon number from 10 to 24 and having an average number of branches per aliphatic group of from 0.7 to 2.5 and having at least 0.5, preferably from 3 to 12, moles of propylene oxide per mole of primary alcohol and (2) polypropylene glycol; provided that the primary alcohol is propoxylated by contacting the alcohol with propylene oxide in the presence of a catalytically effective amount of one or more of the phosphate salts of lanthanum series elements or the rare earth elements, preferably a carbonate salt thereof, wherein the propoxylated composition comprising the propoxylated alcohol and from 1 to 30 wt % of polypropylene glycol is produced; and (b) allowing the composition to interact with hydrocarbons in the hydrocarbon containing formation. | 01-27-2011 |
20130196886 | SURFACTANT SYSTEMS FOR ENHANCED OIL RECOVERY - The invention relates to a hydrocarbon recovery composition comprising a combination of an internal olefin sulfonate and an alkoxy glycidyl sulfonate, more specifically a hydrocarbon recovery composition comprising surfactant and water, wherein the surfactant comprises a combination of an internal olefin sulfonate with a chain length of greater than C20 and an alkoxy glycidyl sulfonate selected from an ethoxylated glycidyl sulfonate and a propoxylated glycidyl sulfonate. Further, the invention relates to a method of treating a hydrocarbon containing formation, comprising (a) providing a hydrocarbon recovery composition to at least a portion of the hydrocarbon containing formation, wherein the composition comprises a blend of an internal olefin sulfonate and an alkoxy glycidyl sulfonate; and (b) allowing the composition to interact with hydrocarbons in the hydrocarbon containing formation. | 08-01-2013 |
20140135239 | CORROSION INHIBITORS - The present invention provides the use of a sulfosuccinate as a corrosion inhibitor. In particular, the sulfosuccinate may be used to inhibit the corrosion of a metal component that is, or will be, in contact with an aqueous fluid, in order to prevent or reduce corrosion of the metal component. The sulfosuccinate may be used to inhibit corrosion of a metal component in an industrial aqueous system, such as a hydrocarbon plant; a chemical plant; a water plant; or a paper manufacturing plant, and in particular in an oilfield system or a downstream oil-related system. | 05-15-2014 |
20150094240 | CHEMICAL COMPOUNDS - The present invention relates to novel compounds of polyfunctionalized polyethylene and polypropylene glycols, their synthesis and their use, in particular as tracers in applications related to oil and gas production, and especially as specific markers of various target fluids. | 04-02-2015 |
20150141303 | BINARY AND TERNARY SURFACTANT BLENDS FOR ENHANCED OIL RECOVERY IN RESERVOIR BRINES WITH EXTREMELY HIGH TOTAL DISSOLVED SOLIDS - A binary or ternary surfactant mixture for use in enhanced oil recovery within a reservoir having total dissolved solids greater than approximately 80,000 parts per million (i.e., heavy to extreme brine conditions) includes at least two of a propoxylated/ethoxylated alcohol sulfate, an ethoxylated alcohol sulfate, and a monoalkyl or dialkyl diphenyloxide disulfonate. The surfactant mixture is used without alcohol, which is unnecessary to maintain solution stability and good coalescence rates and thus improves compatibility with polymers added to improve the mobility ratio. During testing, exceptional solution stability, excellent oil recovery capability, and good compatibility was observed with these surfactant blends. The mixtures are effective at concentrations below 1% and as low as 0.1% by weight. | 05-21-2015 |
20160168448 | ENHANCED OIL RECOVERY BY SURFACTANTS IN WIDE SALINITY RANGE | 06-16-2016 |
507256000 | Organic component contains a sulfur attached directly to carbon by nonionic bonding | 13 |
20110028360 | ORGANIC CORROSION INHIBITOR PACKAGE FOR ORGANIC ACIDS - An acidizing composition useful for treating a subterranean hydrocarbon producing formation and removing scale from oilfield equipment, the composition including: an acid; water; and an effective amount of a corrosion inhibitor composition including: at least one mercapto-compound; and at least one alkoxylated acetylenic alcohol. Also disclosed are methods for removing scale from metal surfaces and for treating a subterranean hydrocarbon producing formation with such an acidizing composition whereby the corrosive effects of the acidizing composition on metal surfaces in contact therewith are reduced. | 02-03-2011 |
507258000 | Alkyl and hydrogen attached directly to the same sulfur atom or to a chain of sulfur atoms by nonionic bonding | 1 |
20170233637 | METHODS FOR INHIBITING METAL CORROSION | 08-17-2017 |
507259000 | The sulfur is part of a sulfonate group | 11 |
20090111717 | ENHANCED OIL RECOVERY SURFACTANT FORMULATION AND METHOD OF MAKING THE SAME - The present invention is directed to an enhanced oil recovery formulation which comprises:
| 04-30-2009 |
20090203557 | METHOD AND COMPOSITION FOR ENHANCED HYDROCARBONS RECOVERY - The present invention provides a method of treating a hydrocarbon containing formation comprising (a) providing a hydrocarbon recovery composition to at least a portion of the hydrocarbon containing formation, wherein the composition comprises one or more internal olefin sulfonates having 17 or more carbon atoms, (b) adding water and/or brine from the hydrocarbon formation to the composition, (c) adding a solubilizer which comprises an ethoxylated alcohol wherein the alcohol before ethoxylation had an average molecular weight of at least about 220 and (d) allowing the composition to interact with hydrocarbons in the hydrocarbon containing formation. The solubilizer may comprise less than about 0.1 wt %, preferably from about 0.02 to about 0.05 wt %, of the total composition and it may have from about 5 to about 9 moles of ethylene oxide per mole of alcohol. | 08-13-2009 |
20090325826 | METHOD FOR CHANGING THE WETTABILITY OF ROCK FORMATIONS - Single-phase microemulsions (SPMES) and in situ-formed microemulsions in water-wetting pills may be used to reverse the wettability of subterranean rock previously drilled with an oil-based mud or synthetic-based mud before pumping a high fluid loss squeeze pill or crosslink pill or other water-based pill. This wettability reversal occurs by solubilization of the non-polar material into the microemulsion when the water-wetting pill contacts the non-polar material. An in situ microemulsion may be formed when one or more surfactant and a polar phase (e.g. water or brine), and eventually some amount of organic phase, contacts the reservoir formation and reverses the wettability encountered in the porous media. The microemulsions are effective for reversing the wettability that occurs from non-polar materials which include, but are not necessarily limited to, oil-based mud, synthetic-based mud, paraffins, asphaltenes, emulsions, slugs, and combinations thereof. | 12-31-2009 |
20110118154 | METHOD OF MAKING A SYNTHETIC ALKYLARYL SULFONATE - A process for preparing an alkylaryl sulfonate comprising (a) reacting at least one meta-xylene compound with olefin or a mixture of olefins having from about 10 to about 20 carbon atoms, in the presence of an acid catalyst, wherein the resulting product comprises no more than 40 weight percent of 1-alkyl-2,4 dimethylsubstituted aromatic compound and at least about 60 weight percent of 1-alkyl-3,5 dimethyl substituted aromatic compound; (b) sulfonating the product of (a); and (c) neutralizing the product of (b) with a source of alkali or alkaline earth metal or ammonia. | 05-19-2011 |
20110136706 | ORGANOSULFONYL LATENT ACIDS FOR PETROLEUM WELL ACIDIZING - Oil wells are treated with latent acids containing a sulfonyl moiety, wherein the latent acid is capable of providing an active acid after injection into an oil well. The latent acids are converted to active acids such as mineral acids or strong organic acids in the oil well, with resultant dissolution of acid-soluble minerals that impede oil or gas flow. Exemplary latent acids are according to any of formulas (I), (II), and (III) | 06-09-2011 |
20110190175 | USE OF SURFACTANT MIXTURES FOR TERTIARY MINERAL OIL EXTRACTION - The use of a surfactant mixture comprising at least one surfactant having a hydrocarbon radical composed of from 12 to 30 carbon atoms and at least one cosurfactant having a branched hydrocarbon radical composed of from 6 to 11 carbon atoms for tertiary mineral oil extraction. | 08-04-2011 |
20120101010 | ALKOXY CARBOXYLATE SURFACTANTS - Provided herein are inter alia novel compositions and methods having application in a variety of fields including the field of enhanced oil recovery, the cleaning industry as well as groundwater remediation. In particular, the alkoxy carboxylate compounds and mixtures thereof presented herein can be used, inter alia, for the recovery of a large range of crude oil compositions from challenging reservoirs. | 04-26-2012 |
20130079261 | SULFONATED INTERNAL OLEFIN SURFACTANT FOR ENHANCED OIL RECOVERY - A process for recovering oil from an oil-bearing formation comprises introducing into said formation an aqueous composition comprising at least one sulfonated derivative of one or more internal olefins, said internal olefins being characterized by having low amounts of tri-substitution on the olefin bond, said sulfonated derivative being obtained by sulfonating a composition comprising internal olefins of the formula: R | 03-28-2013 |
20130296201 | METHOD AND COMPOSITION FOR ENHANCED HYDROCARBONS RECOVERY - An injectable fluid for treating a hydrocarbon containing formation is described. The injectable fluid includes ((i) when the salinity of the brine is from about 2 wt % to about 4 wt %, a composition that comprises a blend of a C | 11-07-2013 |
20140364347 | DI-FUNCTIONAL ANIONIC SURFACTANTS FOR ENHANCED OIL RECOVERY - The present invention describes the synthesis and use of cleavable di-functional anionic surfactants for enhanced oil recovery applications and/or the use of sacrificial surfactants. | 12-11-2014 |
20160032171 | COMPOSITION FOR ENHANCED HYDROCARBON RECOVERY FROM A FORMATION - A hydrocarbon recovery composition which comprises a first blend of C24-28 internal olefin sulfonates and an injectable fluid composition comprising the hydrocarbon recovery composition, water and/or brine wherein the hydrocarbon recovery composition is present in an amount of from 0.05 to 1.0 wt % of the total injectable fluid composition can be used for enhanced hydrocarbon recovery from a formation. | 02-04-2016 |