Earth boring, well treating, and oil field chemistry inventions 05/09

20090137429 - Temperature-extended enzyme systems: Water-soluble amphoteric surfactants at low concentration thermostabilize enzymes in brine. The thermostabilized enzyme compositions can be used in a method to digest polymers at temperatures and/or salinities at which the enzyme is normally inactivated and/or coagulated without the surfactant. In oilfield applications, the composition can be used in well treatment... Agent: Schlumberger Technology Corporation David Cate

20090137430 - Method for simultaneous removal of asphaltene, and/or paraffin and scale from producing oil wells: A method for cleaning oil wells to increase the flow of oil thereof by use of a unique aqueous cleaning emulsion comprising of water, hydrocarbon solvent, and detergent. This one step method provides for the simultaneously cleaning/removal of asphaltene and/or paraffin and scale. This method can be used alone or... Agent: James J. Mullen

20090137431 - Oilwell sealant compositions comprising alkali swellable latex: Sealant compositions comprising an alkali swellable latex and a pH increasing material and methods of using the same to service a wellbore are provided. In one embodiment, the sealant composition can be used in a wellbore and includes an alkali swellable latex and a pH increasing material. The sealant composition... Agent: Craig W. Roddy Halliburton Energy Services

20090137432 - Ph sensitive emulsion system: An oilfield treatment fluid in the form of an emulsion wherein the emulsion contains at least one treatment agent sequestered within a phase of the emulsion, wherein the emulsion is stable when the pH is maintained within a predetermined range, and breaks to release the at least one treatment agent... Agent: Schlumberger Technology Corporation David Cate

20090137433 - Composition and method for making a proppant: The present invention relates to proppants which can be used to prop open subterranean formation fractions. Proppant formulations are further disclosed which use one or more proppants of the present invention. Methods to prop open subterranean formation fractions are further disclosed. In addition, other uses for the proppants of the... Agent: Kilyk & Bowersox, P.l.l.c.

20090131280 - Swelling inhibitors for clays and shales: Hydration of clays and shales may be inhibited during drilling operations by using a clay and shale inhibitor. The inhibitor may be used with a water based drilling fluid. The clay and shale inhibitor includes from 0.2 to 5 % by weight of a reaction product of an epoxy resin... Agent: Paul S Madan Madan, Mossman & Sriram, PC

20090131281 - Drilling fluid containing hydrophobin: The present invention relates to the use of at least one hydrophobin or at least one hydrophobin derivative in a drilling mud.... Agent: Connolly Bove Lodge & Hutz, LLP

20090131282 - Solid zirconium-based cross-linking agent and use in oil field applications: A solid zirconium cross-linking agent and use in a cross-linking composition in oil field applications such as hydraulic fracturing and plugging of permeable zones. The zirconium cross-linking agent is prepared by a process comprising contacting a zirconium complex with an alkanolamine and water at particular mole ratios of alkanolamine and... Agent: E I Du Pont De Nemours And Company Legal Patent Records Center

20090131283 - Imidazoline-based heterocyclic foamers for downhole injection: Disclosed are imidazoline-based foamers and corrosion inhibitors for treatment of oil and gas wells for enhanced production. The invention also includes methods of foaming a fluid by introducing the disclosed foamers to oil and gas wells.... Agent: Edward O. Yonter Patent And Licensing Department

20090131284 - Solid zirconium-based cross-linking agent and use in oil field applications: A solid zirconium cross-linking agent is prepared comprising zirconium and hydroxyalkylated ethylene diamine ligand. Use of the cross-linking agent in compositions for oil field applications such as hydraulic fracturing and plugging of permeable zones is also disclosed.... Agent: E I Du Pont De Nemours And Company Legal Patent Records Center

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... Agent: Jones & Smith , LLP

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... Agent: Burleson Cooke L.L.P.

20090131287 - Inhibiting hydration of shale using a polyol and potassium formate: A substantially nonaqueous composition comprising a polyol and potassium formate is made by removing water from a mixture while heating. The polyol beneficially contains 3-50 hydroxyl groups and may be polyglycerin. The water removed may originate from a solution of one or more of the ingredients, from a condensation reaction... Agent: William L. Krayer

20090124520 - Novel hydrate based systems: A method for transporting a fluid comprising a clathrate forming gas through a transportation system including a pipeline. The method involves subjecting the fluid to clathrate forming temperature and pressure conditions and introducing sufficient of a clathrate forming host to convert substantially all of the gas to clathrate and to... Agent: Young & Basile, P.C.

20090124521 - Additive for increasing the density of a fluid for casing annulus pressure control: A method of treating a wellbore that includes circulating a wellbore fluid in the wellbore, wherein the wellbore fluid comprises an oleaginous base fluid and a wellbore additive colloidal solid material, and wherein the wellbore additive colloidal solid material is formed by grinding a solid particulate material and a polymeric... Agent: Legal Dept.,IPGroup M-i L.L.C.

20090124522 - Cement compositions and methods utilizing nano-hydraulic cement: An exemplary method includes introducing a treatment fluid comprising nano-hydraulic cement into a subterranean formation. The treatment fluid may include a drilling fluid, a completion fluid, a stimulation fluid, a well clean-up fluid or a cement composition. Another example method comprises introducing a cement composition comprising nano-hydraulic cement, hydraulic cement,... Agent: Craig W. Roddy Halliburton Energy Services

20090118143 - Methods for manipulation of the flow of fluids in subterranean formations: A method of treating a subterranean formation penetrated by a wellbore to mitigate the production of unwanted fluids from the wellbore is carried out by forming a treatment fluid containing at least one of an oil-wetting or water-repelling surfactant and a carrier fluid. The treatment fluid is then introduced into... Agent: Schlumberger Technology Corporation David Cate

20090118144 - Methods for manipulation of air flow into aquifers: A method of treating a subterranean formation penetrated by a wellbore to mitigate the production of unwanted air from the wellbore is carried out by forming a treatment fluid containing a water-wetting surfactant and a carrier fluid. The treatment fluid is then introduced into the wellbore. The treatment or treatments... Agent: Schlumberger Technology Corporation David Cate

20090118145 - Method for producing proppant using a dopant: A method for producing sintered pellets and sintered pellets produced therefrom including mixing a dopant with water and kaolin clay to form substantially round and spherical green pellets and sintering the pellets to form a proppant. The dopant is selected from the group consisting of potassium carbonate, potassium sulfate, potassium... Agent: Haynes And Boone, LLPIPSection