http://www.freshpatents.com/Earth-boring-well-treating-and-oil-field-chemistry-dtnewntc507.php USPTO Class 507 - Earth boring, well treating, and oil field chemistry en-us Thu, 24 Jul 2008 15:09:22 -0700 1000 Wednesday Thursday Friday Saturday Sunday 141 31 http://www.freshpatents.com/index.php?rss=true http://www.freshpatents.com/images/freshpatentsnav_rss.gif http://www.freshpatents.com/Method-and-composition-for-removing-filter-cake-from-a-horizontal-wellbore-using-a-stable-acid-foam-dt20080717ptan20080171669.php Thu, 24 Jul 2008 15:09:22 -0700 A composition and method for removing a filter cake from a horizontal wellbore in a subterranean formation using a composition containing a inorganic or organic acidic material, a cationic fluorocarbon surfactant, an alkyl alcohol, water optionally containing ammonium chloride and at least one of an alkyl polyglycoside and a betaine... http://www.freshpatents.com/Oil-base-fluids-and-organophilic-tannin-containing-compositions-to-lower-the-fluid-loss-thereof-dt20080717ptan20080171670.php Thu, 24 Jul 2008 15:09:22 -0700 The invention provides a fluid loss control additive for oleaginous liquids and oleaginous wellbore fluids containing the additive. The additive is the reaction product of a tannin compound, a polyamidoamine, a commercial lecithin, and an acid. The preferred tannins are derived from quebracho and wattle trees. The preferred acid is... http://www.freshpatents.com/Use-of-ethoxylated-amidoamines-as-emulsifiers-in-drilling-fluids-dt20080717ptan20080171671.php Thu, 24 Jul 2008 15:09:22 -0700 as an emulsifier in drilling fluids which contain at least one continuous oil phase, an aqueous phase and typical additives. In which R1, R2, R3 and R4 independently of one another represent a hydrogen atom, a branched or unbranched alkyl or alkenyl group containing 5 to 23 carbon atoms or a... http://www.freshpatents.com/Method-and-composition-for-enhanced-hydrocarbons-recovery-dt20080717ptan20080171672.php Thu, 24 Jul 2008 15:09:22 -0700 A method of treating a hydrocarbon containing formation is described. The method includes providing a hydrocarbon recovery composition to the hydrocarbon containing formation. The hydrocarbon recovery composition includes a branched internal olefin sulfonate having an average carbon number of at least 15 and an average number of branches per molecule... http://www.freshpatents.com/Compositions-comprising-sorel-cements-and-oil-based-fluids-dt20080717ptan20080171673.php Thu, 24 Jul 2008 15:09:22 -0700 A wellbore servicing composition comprising a metal oxide, a soluble salt, a surfactant and an oleaginous fluid. A wellbore servicing composition comprising magnesium oxide, a chloride or phosphate salt, an organophilic surfactant and an oleaginous fluid. A wellbore servicing composition comprising magnesium oxide, magnesium chloride, an organophilic surfactant, water and... http://www.freshpatents.com/Compositions-comprising-quaternary-material-and-sorel-cements-dt20080717ptan20080171674.php Thu, 24 Jul 2008 15:09:22 -0700 A wellbore servicing composition comprising a metal oxide, a soluble salt and a viscosifier wherein the viscosifier comprises a quaternary amide, a quaternary amide ester, or combinations thereof. A wellbore servicing composition comprising magnesium oxide, a chloride or phosphate salt and a quaternary material. A wellbore servicing composition comprising magnesium...