Earth boring, well treating, and oil field chemistry inventions 03/08

20080070805 - Drill-in fluids and associated methods: Of the many methods provided herein, the present invention provides a method comprising: providing a drill-in fluid that comprises an aqueous base fluid, a viscosifier, a relative permeability modifier fluid loss control additive, and a degradable bridging agent comprising a degradable material capable of undergoing an irreversible degradation downhole; placing... Agent: Craig W. Roddy Halliburton Energy Services

20080070806 - Oxidative internal breaker system with breaking activators for viscoelastic surfactant fluids: Compositions and methods are given for delayed breaking of viscoelastic surfactant gels inside formation pores, particularly for use in hydraulic fracturing. Breaking inside formation pores is accomplished without mechanical intervention or use of a second fluid. Bromate oxidizing agents are used along with selected breaking activators for the bromate breaking... Agent: Schlumberger Technology Corporation David Cate

20080070807 - Drill-in fluids and associated methods: Of the many methods provided, in one embodiment, the present invention provides a method comprising: placing a drill-in fluid in a subterranean formation, the drill-in fluid comprising an aqueous base fluid, a viscosifier, a relative permeability modifier fluid loss control additive, and a degradable bridging agent comprising a degradable material... Agent: Craig W. Roddy Halliburton Energy Services

20080070808 - Drill-in fluids and associated methods: Of the many compositions provided herein, in one embodiment, the present invention provides a drill-in fluid comprising an aqueous base fluid, a viscosifier, a relative permeability modifier fluid loss control additive, and a degradable bridging agent comprising a degradable material capable of undergoing an irreversible degradation downhole.... Agent: Craig W. Roddy Halliburton Energy Services

20080070809 - Internal breaker for oilfield fluids: Delayed breakers are given that break viscoelastic surfactant fluids inside the pores of formations into which the fluids have been injected. The breakers comprise proteins, proteins that contain breakers, or cells that contain breakers. Proteins become breakers, and proteins and cells release breakers, due to a triggering mechanism that may... Agent: Schlumberger Technology Corporation David Cate

20080070810 - Methods of preparing degradable materials and methods of use in subterranean formations: Methods for producing degradable particulates and slurries thereof, and methods related to the use of such degradable particulates and slurries in subterranean applications. Among the many methods provided are methods comprising: providing a degradable material mixture that comprises a degradable material and a first solvent; providing a fluid that comprises... Agent: Robert A. Kent

20080070811 - Functionalized clay compositions for aqueous based drilling fluids: t

20080070812 - Carbon dioxide foamed fluids: An aqueous viscoelastic surfactant (VES) fluid foamed or energized with carbon dioxide, in which the VES is more compatible with the carbon dioxide, is made by the addition of one or more than one synergistic co-surfactant. The synergist co-surfactant includes quaternary amines and ethoxylated carboxylates having a hydrophobic chain shorter... Agent: Schlumberger Technology Corporation David Cate

20080070813 - Oxidative internal breaker for viscoelastic surfactant fluids: Compositions and methods are given for delayed breaking of viscoelastic surfactant gels inside formation pores, particularly for use in hydraulic fracturing. Breaking inside formation pores is accomplished without mechanical intervention or use of a second fluid. Oxidizing agents such as air, oxygen, persulfates, bromates, peroxides, and others are used. The... Agent: Schlumberger Technology Corporation David Cate

20080070814 - Cement compositions for reducing gas or water migration and methods of using the same: A method of cementing a wellbore comprising preparing a cement composition comprising a water-soluble aromatic sulfonated polymer, and placing the cement composition into the wellbore, wherein the cement composition develops a compressive strength of greater than about zero in less time than a similar cement composition having a comparable thickening... Agent: Craig W. Roddy Halliburton Energy Services

20080064611 - Ion pair amphiphiles as hydrate inhibitors: A method of inhibiting hydrates in a fluid comprising water and gas comprising adding to the fluid an effective hydrate-inhibiting amount of one or more ion-pair amphiphiles, wherein the ion-pair amphiphiles are composed of one or more cationic amphiphiles and one or more anionic amphiphiles.... Agent: Michael B. Martin Patent And Licensing Department

20080064612 - Invert emulsion drilling fluid systems comprising an emulsified aqueous phase comprising dispersed integral latex particles: An invert emulsion fluid system and a method of performing petroleum recovery operations using an invert emulsion fluid system.... Agent: Paula D. Morris The Morris Law Firm, P.C.

20080064613 - Dispersant coated weighting agents: A method of formulating a wellbore fluid that includes providing a base fluid; and adding a sized weighting agent coated with a dispersant made by the method of dry blending a weighting agent and a dispersant to form a sized weighting agent coated with the dispersant is disclosed.... Agent: Osha Liang/mi

20080064614 - Friction reduction fluids: The invention provides an oilfield suspending friction reducer treatment composition fluid comprising from about 0.001 weight percent to about 0.5 weight percent of a drag reducing surfactant; at least one drag reducing enhancer selected from the group consisting of polymeric drag reduction enhancers, monomeric drag reduction enhancers, and mixtures thereof.... Agent: Schlumberger Technology Corporation David Cate

20080058226 - Method for controlled placement of additives in oil and gas production: Pellets can be injected into oil and gas production equipment that may contain stagnant or slow moving system fluids to treat the stagnant or slow moving system fluids to prevent conditions such as corrosion. The pellets have a density such that they may be moved through the equipment by system... Agent: Madan, Mossman & Sriram, P.C.

20080058227 - Surfactant composition: The present invention relates to a surfactant composition containing a cationic surfactant (hereinafter referred to as a compound (A)), one or more compounds (hereinafter referred to as a compound (B)) selected from anionic aromatic compounds and bromide compounds and a cationic polymer (C), wherein compound (A) and (B) are selected... Agent: Birch Stewart Kolasch & Birch

20080058228 - Low bulk density proppant and methods for producing the same: Materials and Methods for making low bulk density proppant capable of providing permeability at subterranean pressures. The low bulk density proppant is made from kaolin clay and at least one of calcined diatomaceous earth and burned kaolin clay.... Agent: Haynes And Boone, LLP

20080058229 - Polyelectrolyte complexes for oil and gas applications: A polyelectrolyte complex for the controlled release of an oil and gas field chemical selected from the group consisting of (a) a gel-forming or cross-linking agent, (b) a scale inhibitor, (c) a corrosion inhibitor, (d) an inhibitor of asphaltene or wax deposition, (e) a hydrogen sulfide scavenger, (f) a hydrate... Agent: Stinson Morrison Hecker LLP Attn: Patent Group