Patent application number | Description | Published |
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 |
20090203558 | METHOD AND COMPOSITION FOR ENHANCED HYDROCARBONS RECOVERY - A method of treating a hydrocarbon containing formation is described. The method includes (a) providing a hydrocarbon recovery composition to at least a portion of the hydrocarbon containing formation, wherein (i) when the salinity of the brine is from about 2 wt % to about 4 wt %, the composition comprises a blend of a C | 08-13-2009 |
20120160487 | METHOD AND COMPOSITION FOR ENHANCED HYDROCARBON RECOVERY FROM A FORMATION CONTAINING A CRUDE OIL WITH SPECIFIC SOLUBILITY GROUPS AND CHEMICAL FAMILIES - A method of treating a formation containing crude oil with specific solubility groups and chemical families is described. The method includes (a) providing a hydrocarbon recovery composition to at least a portion of a formation containing crude oil with specific solubility groups and chemical families, wherein the composition comprises a C | 06-28-2012 |
20120181025 | METHOD AND COMPOSITION FOR ENHANCED HYDROCARBONS RECOVERY FROM A VERY HIGH SALINITY, HIGH TEMPERATURE FORMATION - A method of treating a very high salinity high temperature hydrocarbon containing formation is described. The method includes (a) providing a hydrocarbon recovery composition to at least a portion of a hydrocarbon containing formation having a brine salinity of above about 13 wt % and a temperature of above about 7° C., wherein the composition comprises a C | 07-19-2012 |
20120310004 | NONYL ALCOHOLS WITH A LOW DEGREE OF BRANCHING AND THEIR DERIVATIVES - The invention relates to nonyl alcohols with a low degree of branching and derivatives produced using them. In particular the present invention relates to mixture of primary nonyl alcohols in which at least 80% of the alkyl chains are linear and at least 15% of the alkyl chains are branched at the 2-carbon position and its derivatives. The low degree of branching produces derivatives that are more elongated and less bulky that similar derivatives produced with more highly branched alcohols. | 12-06-2012 |
20130190543 | METHOD AND COMPOSITION FOR ENHANCED OIL RECOVERY - A method is provided for treating a hydrocarbon containing formation. The method comprises providing a hydrocarbon recovery composition comprising a mixture of branched internal olefin sulfonate molecules, and contacting hydrocarbons in the hydrocarbon containing formation with the hydrocarbon recovery composition. The mixture of branched internal olefin sulfonate molecules has an average number of carbon atoms of between 19 and 23, and an average number of branches of at least 0.6 per molecule. A hydrocarbon composition produced from a hydrocarbon containing formation, and a hydrocarbon recovery composition comprising a mixture of branched internal olefin sulfonate molecules are also provided. | 07-25-2013 |
20130199788 | METHOD AND COMPOSITION FOR ENYHANCED HYDROCARBONS RECOVERY - A method of treating a formation containing crude oil is described. The method includes (a) providing a hydrocarbon recovery composition to at least a portion of a formation containing crude oil wherein the composition comprises a high molecular weight internal olefin sulfonate and a viscosity reducing compound; and (b) allowing the composition to interact with hydrocarbons in the crude oil containing formation. | 08-08-2013 |
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 |
20140005082 | METHOD AND COMPOSITION FOR ENHANCED HYDROCARBONS RECOVERY FROM A FORMATION CONTAINING A CRUDE OIL | 01-02-2014 |
20140110305 | METHOD AND COMPOSITION FOR ENHANCED HYDROCARBON RECOVERY - The invention relates to 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 an anionic surfactant based on an alkoxylated primary alcohol having a branched aliphatic group, which group has an average carbon number of from 9 to 15 and an average number of branches of from 0.5 to 2.5, and having an average of at least 0.5 mole of alkylene oxide groups per mole of primary alcohol; and (b) allowing the composition to interact with hydrocarbons in the hydrocarbon containing formation. Further, the invention relates to the hydrocarbon recovery composition that is used in said method. | 04-24-2014 |
20140290953 | METHOD AND COMPOSITION FOR ENHANCED HYDROCARBONS RECOVERY FROM A FORMATION CONTAINING A CRUDE OIL - A hydrocarbon recovery composition comprising vinylidene olefin sulfonates is described. A method of treating a crude oil formation and a method of preparing the hydrocarbon recovery composition are also described. | 10-02-2014 |
20140336409 | PROCESS FOR PREPARING AN INTERNAL OLEFIN SULFONATE - The invention relates to a process for preparing an internal olefin sulfonate, comprising sulfonating an internal olefin into sulfonated internal olefin followed by contacting sulfonated internal olefin with a base containing solution, wherein the molar ratio of internal olefin to solvent for the base is higher than 0.06. Further, the invention relates to an internal olefin sulfonate obtainable by said process. | 11-13-2014 |
20140353250 | USE OF LONG CHAIN INTERNAL OLEFIN SULFONATES - The present invention provides a method for treating a formation containing crude oil hydrocarbons, comprising injecting an aqueous composition comprising an internal olefin sulfonate with a nominal carbon chain length between 24 to 44 into said formation and displacing said crude oil hydrocarbons toward one or more production wells. The invention further provides a method for treating a formation containing crude oil hydrocarbons, a method for improving the wettability of a subsurface surface in an subsurface formation containing crude oil hydrocarbons, and a method for separating crude oil hydrocarbons from crude oil hydrocarbons compositions. | 12-04-2014 |
20140367096 | COMPOSITION AND METHOD FOR ENHANCED HYDROCARBON RECOVERY - The invention relates to a hydrocarbon recovery composition comprising an anionic surfactant, wherein said composition is in the solid state, and to a shaped article comprising said composition. Preferably, said composition is in the form of a powder. Further, the invention relates to a process for treating a hydrocarbon containing formation comprising the steps of a) transporting said composition or shaped article to the location of the hydrocarbon containing formation; b) dissolving said composition or shaped article in water thereby forming an aqueous fluid containing the hydrocarbon recovery composition; c) providing the aqueous fluid containing the hydrocarbon recovery composition to at least a portion of the hydrocarbon containing formation; and d) allowing the hydrocarbon recovery composition to interact with the hydrocarbons in the hydrocarbon containing formation. | 12-18-2014 |
20150073168 | PROCESS FOR PREPARING AN INTERNAL OLEFIN SULFONATE - The invention relates to a process for preparing an internal olefin sulfonate, comprising sulfonating an internal olefin, having an average carbon number that is equal to or greater than 20, in a sulfonation reactor into sulfonated internal olefin followed by contacting sulfonated internal olefin with a base containing solution, wherein the sulfonation reactor is cooled with a cooling means having a temperature which is greater than 35° C. Further, the invention relates to an internal olefin sulfonate obtainable by said process, and to use of internal olefin sulfonates obtainable or obtained by said process as a surfactant, suitably as a surfactant in chemical Enhanced Oil Recovery. | 03-12-2015 |