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US20090324344 |
BIOSEALING
The invention relates to a method to repair a leak in a geological structure or a construction comprising a geological material, comprising administering a liquid nutrient composition, comprising...
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US20090325825 |
Method of Minimizing or Reducing Salt Deposits By Use of a Fluid Containing a Fructan and Derivatives Thereof
The amount of crystallized salt in an oil and/or gas well may be minimized or reduced by use of a fructan, such as inulin, or a derivative as a salt block inhibitor. A preferred salt inhibitor is...
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US20090298721 |
Friction Reducer Performance in Water Containing Multivalent Ions
A variety of methods and compositions are disclosed, including, in one embodiment, a method that comprises: introducing a treatment fluid into a subterranean formation, wherein the treatment fluid...
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US20090275489 |
METHOD AND CHEMICAL AGENT FOR REDUCTION OF WATER PRODUCTION FROM OIL AND GAS CONTAINING WELLS
Method and agent for reducing water production from oil and gas wells. The agent comprises polymer, cross-linked particles which are stable in water-free solvents. The particles are manufactured in...
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US20090166041 |
Zirconium-hydroxy alkylated amine-hydroxy carboxylic acid cross-linking composition for use with high pH polymer solutions
A process to prepare a solution of zirconium-hydroxyalkylated diamine-lactic acid complex is disclosed and use of the solution in oil field applications such as hydraulic fracturing and plugging of...
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US20090048126 |
Method of Treating Formation With Polymer Fluids
A method of treating a subterranean formation penetrated by a wellbore is carried out by providing a treatment fluid comprising a hydratable polymer, a divalent metal salt in an amount of at least...
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US20090042749 |
N,N-Dialkylpolyhydroxyalkylamines
N,N-Dialkylpolyhydroxyalkylamines may be made by the reductive alkylation of an N-alkylpolyhydroxyalkylamine with an aldehyde or ketone, or with an equivalent compound, in the presence of a...
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US20080280788 |
Well Treatment with Ionic Polymer Gels
Methods comprising preparing an aqueous mixture of an anionic polymer, a charge screening surfactant, and a borate crosslinker, wherein the mixture has a conductivity less than 10 mS/cm, injecting...
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US20080269081 |
Internal Breakers for Viscoelastic Surfactant Fluids
Internal breakers are given that break fluids viscosified with non-polymeric viscosifiers such as viscoelastic surfactants, inside formation pores. The breakers are polyols, for example natural and...
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US20080242563 |
Zirconium-based cross-linker compositions and their use in high pH oil field applications
A cross-linking composition which comprises (a) an aqueous liquid, (b) a cross-linkable organic polymer, and (c) a solution comprising a zirconium cross-linking agent which comprises a zirconium...
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US20080202750 |
PROPPANT MATERIALS AND METHODS
The present invention provides thermoplastic coated proppants and methods for preparing the thermoplastic coated proppants. Methods for using these proppants in subterranean well formations and...
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US20080202744 |
Methods and Compositions for Fracturing Subterranean Formations
Viscoelastic surfactant (VES) gelled aqueous fluids containing water, a VES, an internal breaker, a VES stabilizer, a fluid loss control agent and a viscosity enhancer are useful as treating fluids...
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US20080207470 |
Crosslinked acids comprising derivatized xanthan and subterranean acidizing applications
Many methods are provided herein including, in one embodiment, a method comprising: providing a fluid that comprises an acid, crosslinked oxidized xanthan, and optionally, a base fluid; placing the...
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US20080183451 |
Simulations for Hydraulic Fracturing Treatments and Methods of Fracturing Naturally Fractured Formation
A hydraulic fracture design model that simulates the complex physical process of fracture propagation in the earth driven by the injected fluid through a wellbore. An objective in the model is to...
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US20080182763 |
Pumpable Multiple Phase Compositions for Controlled Release Applications Downhole
Pumpable multiple phase vesicle compositions carry agents and components downhole or through a conduit, and controllably releasing them at a different place and time by breaking the compositions....
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US20080161207 |
Subterranean treatment fluids comprising viscoelastic surfactant gels
Among many things, in some embodiments, improved viscoelastic surfactant gels that comprise non-aqueous tackifying agents, and their associated methods of use, are provided. In one embodiment, the...
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US20080119374 |
Polymeric Acid Precursor Compositions and Methods
A composition is formed from a polymeric acid precursor, such as polylactic acid (PLA), that is a least partially dissolved within a polymer dispersing solvent. An emulsion may be from polymeric...
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US20080087432 |
Friction Loss Reduction in Viscoelastic Surfactant Fracturing Fluids Using Low Molecular Weight Water-Soluble Polymers
Adding relatively low molecular weight water-soluble friction loss reduction polymers to an aqueous fluid gelled with a viscoelastic surfactant (VES) increases the critical generalized Reynold's...
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US20080070807 |
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...
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US20080070808 |
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...
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US20080064614 |
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...
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US20080011486 |
BIODEGRADABLE FOAM COMPOSITIONS FOR OIL FIELD OPERATIONS
Biodegradable foam compositions for oil field operations including drilling, hydraulic fracturing and wellbore cleanout are disclosed. The compositions comprise an aqueous liquid, an alkyl...
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