Class / Patent application number | Description | Number of patent applications / Date published |
507220000 | Resin is polymer derived from phenolic and aldehydic monomers | 8 |
20090186782 | MIXED DEMULSIFIER OF ASP FLOODING PRODUCED LIQUID - The present invention discloses a mixed demulsifier of ASP flooding production liquid. The demulsifier consists of a functional demulsifier from 70 to 30% by mass and a mixed solvent from 30 to 70% by mass based on the mass of the demulsifier; the functional demulsifier is formed by mixing a polyethylidene polyamine polyoxypropylene polyoxyethylene ether from 35 to 70% by mass and a propanediol polyoxypropylene polyoxyethylene ether from 30 to 65% by mass based on the mass of the functional demulsifier; the mixed solvent comprises one or more of xylene, ethylbenzene, mixed benzene, solvent oil, methanol and isopropanol, or a mixed solution thereof with water. The demulsifier of the present invention has the advantages of high dehydration ratio, quick dehydration speed and flush oil-water interface over the prior art. Upon the demulsification of the production liquid, the oil content of the sewage is less than 200 mg/L and the water content of the oil is less than 8%, so that the effect of oil-water separation of the production liquid is far better than that of the control demulsifier. The demulsifier of the present invention is an excellent mixed demulsifier for treating the ASP flooding production liquid. | 07-23-2009 |
20100179077 | COATING COMPOSITION FOR PROPPANT AND THE METHOD OF MAKING THE SAME - A coated proppant comprising a proppant particulate substrate and a coating layer on the substrate. The coating layer is formed from a composition comprising a resin, a curing agent, an adhesion promoter, and a toughening agent. | 07-15-2010 |
20110160101 | RESIN COATED PARTICULATES - Provided according to embodiments of the invention are resin coated particulates for use in oil and gas subterranean extractions. The resin coated particulates comprise a particulate substrate and a resin coating. The resin coating comprises a particulate substrate and a resin coating including epoxy-functional compounds and an aqueous dispersion of an amine functional microgel wherein the amine functional microgel is formed by reacting a chemical excess of a polyfunctional epoxide compound with an amine salt to form a polyfunctional epoxide amine salt reaction intermediate product, and condensing at least some of the unreacted epoxide groups of the polyfunctional epoxide amine salt reaction intermediate product with a polyamine. Methods of treating a subterranean fracture are also provided. | 06-30-2011 |
20110257051 | Consolidating Emulsions Comprising Convertible Surfactant Compositions and Methods Related Thereto - Methods are provided that include a method comprising: providing an emulsified treatment fluid comprising an oleaginous phase, an aqueous phase, a consolidating agent, and an emulsifying agent that comprises at least one convertible surfactant described by a one of the disclosed formulae, and placing the subterranean treatment fluid in a subterranean formation. | 10-20-2011 |
20120135894 | METHODS AND COMPOSITIONS FOR DETERMINATION OF FRACTURE GEOMETRY IN SUBTERRANEAN FORMATIONS - Disclosed herein is a method comprising disposing in a formation fracture, a proppant and/or a fracturing fluid that comprises a radiation susceptible material that comprises indium and/or vanadium; irradiating the radiation susceptible material with neutrons; measuring gamma-radiation emitted from the radiation susceptible material in a single pass; wherein the single pass does not involve measuring of background radiation from previous or subsequent logging passes; and determining formation fracture height from the measured gamma-radiation. | 05-31-2012 |
20120220504 | Consolidating Agent Emulsions and Associated Methods - Consolidation fluids comprising: an aqueous base fluid comprising a hardening agent; an emulsified resin having an aqueous external phase and an organic internal phase; a silane coupling agent; and a surfactant. The consolidation fluid itself may be emulsified and further comprise an emulsifying agent. The consolidation fluid may also be foamed in some cases. | 08-30-2012 |
20130045900 | META CROSSLINKED BENZYL POLYMERS - A meta crosslinked polar benzyl polymer is made by combining a transition metal crosslinker, or one or more source compounds capable of reacting to form such a transition metal crosslinker, with a polar benzyl polymer which has been activated for meta crosslinking | 02-21-2013 |
20150329768 | RESIN-COATED SUBSTRATE COMPOSITIONS AND METHODS OF MAKING THE SAME - A resin-coated substrate composition includes a resin-coated substrate comprising a particulate substrate coated with a polymer resin, and an additive comprising bentonite or a zeolite. A method of preparing a resin-coated substrate composition includes heating a particulate substrate, and mixing the heated substrate with a polymer resin and an additive such as bentonite or a zeolite. In some embodiments, a foundry sand composition includes the resin-coated substrate composition. In some embodiments, a proppant sand composition includes the resin-coated substrate composition. | 11-19-2015 |