Earth boring, well treating, and oil field chemistry inventions 10/07

20070249504 - Aqueous gels for well bore strengthening: A process for treating an earth formation is disclosed, the process may include: injecting a gelling agent into the earthen formation; injecting a crosslinking agent into the earthen formation; and reacting the gelling agent and the crosslinking agent to form a gel. The gelling agent may include at least one... Agent: Osha Liang/mi

20070249505 - Viscoelastic surfactant fluids and related methods of use: Viscoelastic surfactant based aqueous fluid systems useful as thickening agents in various applications, e.g. to suspend particles produced during the excavation of geologic formations. The surfactants are zwitterionic/amphoteric surfactants such as dihydroxyl alkyl glycinate, alkyl ampho acetate or propionate, alkyl betaine, alkyl amidopropyl betaine and alkylimino mono- or di-propionates derived... Agent: Schlumberger Technology Corporation David Cate

20070244013 - Drilling fluid and method for reducing lost circulation: Lost circulation of drilling fluid is one of the most serious and expensive problems facing the drilling industry. The present invention relates to an improved drilling fluid for reducing or preventing lost circulation to an underground formation surrounding a well bore in the process of drilling a well. The drilling... Agent: Diederiks & Whitelaw, PLC

20070244014 - Subterranean treatment fluids with improved fluid loss control: Fluids useful as subterranean treatment fluids, and more particularly, polymeric fluid loss additives, subterranean treatment fluids with improved fluid loss control, and their associated methods of use, are provided. In one embodiment, the methods comprise: providing a treatment fluid that comprises a base fluid, and a polymeric fluid loss control... Agent: Halliburton Energy Services, Inc.

20070244015 - Use of glycols and polyols to stabilize viscoelastic surfactant gelled fluids: The increased viscosity of aqueous fluids gelled with viscoelastic surfactants (VESs) may be maintained or stabilized by one or more stabilizers added or introduced thereto. The stabilizers are glycols and/or polyols and may stabilize the increased viscosity of VES-gelled fluids effectively over an increased temperature range, e.g. up to 300°... Agent: Madan, Mossman & Sriram, P.C.

20070238621 - Settable drilling fluids comprising cement kiln dust: Settable drilling fluids that comprise an aqueous-based drilling fluid and cement kiln dust. Methods of cementing in a subterranean formation that comprise providing a settable drilling fluid comprising an aqueous-based drilling fluid and cement kiln dust, introducing the settable drilling fluid into a subterranean formation, and allowing the settable drilling... Agent: Craig W. Roddy Halliburton Energy Services

20070238622 - Self-cleaning well control fluid: A composition and method is given for a well control fluid that is injected into a well during completion or remediation and prevents fluid flow from a formation into the well during operations (such as shut-in, or placement or adjustment of tools/hardware) when no fluid flow is desired. The composition... Agent: Schlumberger Technology Corporation David Cate

20070238623 - Degradable particulates as friction reducers for the flow of solid particulates and associated methods of use: Particulate compositions that comprise macro-particulates, and degradable particulates in an amount sufficient to reduce friction between the macro-particulates, the degradable particulates having a mean particle diameter of at least about 20 times smaller than the mean particle diameter of the macro-particulates are disclosed herein. Also disclosed are fluids that comprise... Agent: Halliburton Energy Services, Inc.

20070238624 - Multicomponent viscoelastic surfactant fluid and method of using as a fracturing fluid: There is a viscoelastic fluid. The fluid has one or more cationic surfactants selected from the group consisting of certain quaternary salts, certain amines, and combinations thereof; one or more anionic polymers/anionic surfactants; one or more of certain zwitterionic/amphoteric surfactants; and water. There is also a method of fracturing a... Agent: Charles N. J. Ruggiero Ohlandt, Greeley, Ruggiero & Perle, L.L.P.