Earth boring, well treating, and oil field chemistry inventions 06/09

20090163385 - Well treatment process: The invention provides a method for the treatment of a hydrocarbon well which method comprises administering, down said well, polymeric particles having covalently bound to a polymeric component thereof a well treatment chemical or a precursor thereof, wherein the particles contain covalent bonds scissile in an aqueous environment to release... Agent: Sughrue Mion, PLLC

20090163386 - Compositions for drilling fluids useful to produce flat temperature rheology to such fluids over a wide temperature range and drilling fluids containing such compositions: A drilling fluid additive characterized by a drilling fluid viscosity regulating property which imparts a stable rheological profile to an oil based drilling fluid characterized by a substantially constant equivalent circulating density over a temperature range of about 120° F. to about 40° F. or a substantially constant high shear... Agent: Morgan, Lewis & Bockius LLP

20090163387 - Stabilizing biphasic concentrates through the addition of small amounts of high molecular weight polyelectrolytes: This invention relates to compositions and methods of treating a subterranean formation penetrated by a well bore including providing a treatment composition comprising a rheological polymer, a partitioning agent, a charged polyelectrolyte, and a first liquid medium, forming a stabilized heterogeneous mixture comprising a dispersed rheological polymer-rich phase and a... Agent: Schlumberger Technology Corporation David Cate

20090163388 - Variable density treatment fluids: The present invention provides variable density fluid compositions and methods for using such compositions in a subterranean formation. One exemplary embodiment of the variable density fluid compositions of the present invention comprises a variable density fluid comprising: a base fluid, and a portion of variable pressure weighting material particles.... Agent: Craig W. Roddy Halliburton Energy Services

20090163389 - Scale squeeze treatment systems and methods: An aqueous composition for treating hydrocarbon wells contains (a) a scale inhibitor and (b) a viscoelastic surfactant, and further contains from 0 to less than 1% by weight of acid selected from the group consisting of hydrochloric acid, sulfuric acid, phosphoric acid, formic acid, acetic acid, citric acid, maleic acid,... Agent: Kevin E. Mcveigh Rhodia Inc.

20090156432 - Corrosion inhibitor intensifier compositions and associated methods: Of the many methods and compositions provided herein, one method includes a method comprising contacting a metal surface with an acidic fluid comprising an aqueous base-fluid, an acid, a corrosion inhibitor, and a corrosion inhibitor intensifier composition comprising a compound that corresponds to a formula R1R2XCCOOH, wherein X is a... Agent: Robert A. Kent

20090156433 - Hf acidizing compositions and methods for improved placement in a subterranean formation to remediate formation damage: According to the invention, a fully viscosified acid diversion system for hydrofluoric acid has been developed. The viscosifying agent comprises a xanthan polymer or a derivative thereof. A method of acidizing a portion of a subterranean formation is provided, the method comprising the steps of: (A) forming a viscosified treatment... Agent: Robert A. Kent

20090156434 - Process to prepare borozirconate solution and use as cross-linker in hydraulic fracturing fluids: A process to prepare a stable solution of a borozirconate complex is disclosed and use of the solution in oil field applications such as hydraulic fracturing and plugging of permeable zones. The process comprises contacting zirconium complex with a first alkanolamine, then glycerol and water, then with a solution of... Agent: E I Du Pont De Nemours And Company Legal Patent Records Center

20090156435 - Defoaming methods and compositions: Embodiments of the present invention are directed to defoaming methods and compositions for well treatment fluids. An exemplary embodiment of the present invention provides a method of defoaming a well treatment fluid, comprising combining a defoaming composition with the well treatment fluid, wherein the defoaming composition comprises an amide of... Agent: Craig W. Roddy Halliburton Energy Services

20090156436 - Spacer fluid additive: A spacer fluid comprises a fluid and a viscosity agent. The viscosity agent is a mixture of at least two polyvinylalcohol compositions. A first polyvinylalcohol composition comprises polyvinylalcohols having a first degree of hydrolysis and a second polyvinylalcohol composition comprises polyvinylalcohols having a second degree of hydrolysis. The first and... Agent: Schlumberger Technology Corporation David Cate

20090149352 - Viscoelastic surfactant fluid systems comprising an aromatic sulfonate and methods of using same: Methods of improving shear recovery time of viscoelastic surfactant fluid systems are described, one method involving providing a viscoelastic surfactant fluid system comprising a major portion of a surfactant and a rheology enhancer in a concentration sufficient to shorten shear recovery time of the fluid system compared to shear recovery... Agent: Schlumberger Technology Corporation David Cate

20090149353 - Polysaccharide containing well treatment compositions and methods of using same: Loss of wellbore fluids (such as drilling fluids, completion fluids and workover fluids) into the flow passages of a subterranean formation during well drilling, cementing, completion and workover operations may be reduced or eliminated by introducing into the wellbore in communication with the formation a suspension of a polysaccharide in... Agent: Jones & Smith , LLP

20090149354 - Well treatment compositions containing hydratable polyvinyl alcohol and methods of using same: Loss of wellbore fluids (such as drilling fluids, completion fluids and workover fluids) in a wellbore or into the flow passages of a subterranean formation during well drilling, cementing, completion and workover operations may be reduced or eliminated by introducing into the wellbore a fluid of a hydratable polyvinyl alcohol... Agent: Jones & Smith , LLP

20090149355 - Process to prepare borozirconate solution and use as cross-linker in hydraulic fracturing fluids: A process to prepare a stable solution of a borozirconate complex is disclosed and use of the solution in oil field applications such as hydraulic fracturing and plugging of permeable zones. The process comprises contacting zirconium complex with alkanolamine, then glycerol and water, then with a boron compound. The solution... Agent: E I Du Pont De Nemours And Company Legal Patent Records Center

20090149356 - Environmentally friendly bis-quaternary compounds for inhibiting corrosion and removing hydrocarbonaceous deposits in oil and gas applications: Environmentally friendly compounds for corrosion inhibition and hydrocarbonaceous deposit removal and methods using such compounds are disclosed and claimed. The compounds are derivatives of heterocyclic bis-quaternary molecules having an amido moiety and are applicable to a variety of oil and gas operations.... Agent: Edward O. Yonter Patent And Licensing Department

20090143252 - Dispersing sulfide scales in oil and gas production systems: wherein: R1 is H or CH3; R2 is H or an alkyl group having from 1 to about 4 carbon atoms; A is a straight or branched chain alkyl group having from 1 to 10 carbon atoms; and R5, R6, and R7 each are independently an alkyl group having from... Agent: Madan, Mossman & Sriram, P.C.

20090143253 - Drilling fluids containing microbubbles: A drilling fluid comprises water and microbubbles in an amount to achieve a density of the fluid in the range of 4-6 pounds per gallon; the desired density is achieved, and the novel drilling fluid exists, at pressures in the range of 350-5000 pounds per square inch.... Agent: William L. Krayer

20090143254 - Glycerol based drilling fluids: The present invention relates to glycerol based drilling fluids. In particular, the invention relates to drilling fluids comprising a 95-20 volume % glycerol/water solution capable of stabilizing water-sensitive formations during drilling and the use of such solutions for drilling a well having water-sensitive formations.... Agent: St. Onge Steward Johnston & Reens, LLC

20090143255 - Methods and compositions for improving well bore stability in subterranean formations: Films that may be created and/or placed in a well bore that prevent the flow of fluid into cracks or fractures in a portion of a subterranean formation penetrated by the well bore, and associated methods of use, are provided. In one embodiment, the methods comprise: providing a treatment fluid... Agent: Craig W. Roddy Halliburton Energy Services

20090143256 - Utilization of surfactant as conformance materials: Methods for creating a fluid diverting barrier in a zone of a subterranean formation are provided. Certain methods comprise providing a treatment fluid that comprises an aqueous base fluid, a viscoelastic surfactant, and a soap component; placing the treatment fluid in a subterranean formation penetrated by a well bore; and... Agent: Robert A. Kent

20090143257 - Methods and compositions for controlling water production: A composition for treatment of a subterranean formation, which may be used for water control, is comprised of at least one of 1) a premix of an oleochemical polyol, at least one of polyisocyanate, polycyanate and polyisothiocyanate, and a blocking agent to temporarily block all or a portion of free... Agent: Schlumberger Technology Corporation David Cate

20090143258 - Methods and compostions for preventing scale and diageneous reactions in subterranean formations: Methods and compositions useful to prevent scale formation and/or diageneous reactivity on mineral surfaces residing or to be placed in subterranean formations, are provided. In one embodiment, the methods comprise: providing an anionic polymer and a cationic surfactant; contacting a mineral surface with the anionic polymer and the cationic surfactant;... Agent: Robert A. Kent

20090143259 - Particles: Manufactures particles comprising a chemical treatment agent which are useful in wells are provided. The particles have the advantage of being able to chemically treat a well, e.g. to remove filter cake. Embodiments of the invention improve well production by providing sand control and/or increasing permeability of a gravel pack.... Agent: Drinker Biddle & Reath Attn: Intellectual Property Group

20090143260 - Methods and compositions relating to the reduction of volatile phosphorus from crude: This invention relates to methods and compositions useful in treating crude sources, and more specifically, to methods and compositions useful in reducing the concentration of phosphorus in crude streams and hydrocarbon flowback fluids. In some embodiments, the present invention provides methods that include a method comprising: providing a crude stream... Agent: Robert A. Kent