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8181703 Method useful for controlling fluid loss in subterranean formations  
Methods that include a method comprising: providing a treatment fluid comprising an aqueous base fluid and a relative permeability modifier, wherein the relative permeability comprises a...
8167043 Degradable material assisted diversion or isolation  
A method for well treatment by forming a temporary plug in a fracture, a perforation, a wellbore, or more than one of these locations, in a well penetrating a subterranean formation is provided, in...
8162043 In situ method and system for extraction of oil from shale  
A process for retorting and extracting sub-surface hydrocarbons. The process comprises drilling an energy delivery well extending from the surface to a location proximate a bottom of the...
8146666 Surfactant method for improved oil recovery from subterranean reservoirs  
A method to enhance oil recovery from a subterranean reservoir, the reservoir being accessible via a production well. The method includes injecting a surfactant solution that includes surfactants...
8141638 Fracturing method and apparatus utilizing gelled isolation fluid  
A method and apparatus for fracturing a formation containing a wellbore comprising the steps of (a) injecting a gel into the wellbore; (b) permitting the gel to increase in viscosity and (c)...
8143197 Aqueous fracturing fluid  
The invention concerns an aqueous viscoelastic fracturing fluid for use in the recovery of hydrocarbons. According to the invention, the fluid comprises a cleavable viscoelastic surfactant and a...
8109335 Degradable diverting agents and associated methods  
Methods and compositions that include a method comprising: providing a treatment fluid comprising at least a plurality of degradable diverting agents that comprise at least one degradable material...
8104536 Kerogen extraction from subterranean oil shale resources  
The present invention is directed to methods for extracting a kerogen-based product from subsurface (oil) shale formations, wherein such methods rely on fracturing and/or rubblizing portions of...
8091639 Geothermal well diversion agent formed from in situ decomposition of carbonyls at high temperature  
A method of selectively blocking fractures in a subterranean formation by injecting a diversion agent into the well is disclosed. According to one embodiment, the method comprises injecting a...
8084402 Method of using ionic liquids to inhibit or prevent the swelling of clay  
An ionic liquid may be used to inhibit the swelling and/or disintegration of clay in a subterranean formation. A subterranean clay-containing formation may be treated with the ionic liquid by...
8066072 Method of stimulating a well  
A tubular introduced into a wellbore is perforated at pre-selected locations after the tubular has been cemented into place. The locations of the perforations are determined by modeling inflow...
8056630 Methods of using viscoelastic surfactant gelled fluids to pre-saturate underground formations  
Viscoelastic surfactant (VES) based fluid systems are effective to pre-saturate high permeability subterranean formations prior to a treatment operation that would undesirably suffer from high...
8043996 Method for treatment of underground reservoirs  
A process is disclosed for treating an underground formation, which process comprises: (a) introducing into the underground formation a micellar dispersion comprising water, one or more organic...
8039422 Method of mixing a corrosion inhibitor in an acid-in-oil emulsion  
An acid-in-oil emulsion having a corrosion inhibitor as the external phase has been found to prevent downhole corrosion when acidizing carbonate formations to enhance hydrocarbon recovery.
8034750 Borozirconate systems in completion systems  
A cross-linking system for hydratable polymers for using is formation fracturing applications is disclosed along with methods for using same, where the cross-linking system includes a reaction...
8022017 Method of using dithiazine to inhibit corrosion  
Corrosion of metallic tubulars in an oil, gas or geothermal well may be inhibited by introducing into the well a dithiazine of the formula: wherein R is selected from the group consisting of a C1...
8022018 Quaternized dithiazines and method of using same in treatment of wells  
Corrosion of metallic tubulars in an oil, gas or geothermal well may be inhibited by introducing into the well a dithiazine or dithiazine of the formula: wherein R is selected from the group...
8003577 Method of treating subterranean formation with crosslinked polymer fluid  
A method of treating a subterranean formation penetrated by a wellbore utilizes a treating fluid formed from an aqueous solution of a water-soluble polymer. The treating fluid further contains a...
7992640 Organic acid treating fluids with viscoelastic surfactants and internal breakers  
An aqueous fluid system that contains an aqueous dicarboxylic acid solution, a viscoelastic surfactant as a gelling agent to increase the viscosity of the fluid, and an internal breaker such as...
7987910 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...
7950462 Scale inhibitors compatible with sandstone acidizing  
Methods are given for making scale inhibitors, that were previously incompatible with fluids containing fluoride ion, compatible with fluids containing fluoride ion. Examples of such scale...
7947629 Method of acidizing sandstone formations  
An acidizing fluid for sandstone formations is provided, along with methods of acidizing a sandstone formation penetrated by a wellbore. The aqueous acid treatment is a mixture of an aqueous...
7934551 Methods to properly use saline water for oil reservoirs injection operations  
This invention presents innovative and off the beaten path methods to mainly produce suitable saline streams for oil-fields water injection operations. The production of such suitable saline...
7926568 Non-acid acidizing methods and compositions  
Methods of acidizing subterranean formations or well bores, and more specifically, to acidizing systems involving acid-generating fluids that comprise acid-generating compounds and associated...
7921907 In situ method and system for extraction of oil from shale  
A system and process for extracting hydrocarbons from a subterranean body of oil shale within an oil shale deposit located beneath an overburden. The system comprises an energy delivery subsystem...
7921911 Surface-modifying agents for wettability modification  
A method and composition for treating a subterranean formation with a fluid, including forming a fluid including a particulate and an organosilane with the chemical formula RnSiX4-n, wherein n is...
7915205 Single fluid acidizing treatment  
An acidizing formulation for use in the stimulation of hydrocarbon production is stable when packaged and stored as a single fluid for periods exceeding one year. The formulation contains a...
7906462 Mutual solvent system and method for improved oil and gas permeability in high temperature formations  
A method of acidizing and cleaning up a formation is disclosed, the formation being above 150 degrees C. The formation is treated with a mutual solvent system comprising a mutual solvent of oil and...
7902124 Self-diverting acid treatment with formic-acid-free corrosion inhibitor  
A method of treating a subterranean formation penetrated by a wellbore of a well having iron-containing components is carried out by introducing a treatment fluid into the wellbore of the well. The...
7896080 Method of improving hydrocarbon production from a gravel packed oil and gas well  
This invention relates to enhancing hydrocarbon production from a subterranean formation via a well completed with a gravel pack. Gravel packs suffer plugging and damage over time from produced...
7886822 System, method, and apparatus for acid fracturing with scale inhibitor protection  
A method for treating a subterranean formation includes forming a treatment fluid including a carrier fluid, a solid acid-precursor, and a solid scale inhibitor. The solid acid-precursor includes a...
7874363 Method for terminating or reducing water flow in a subterranean formation  
A method of conditioning well bores and reducing the deleterious effects of water production in a subterranean formation by placing an aqueous phase polymer and/or resin, which at a designated set...
7832478 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...
7810569 Method and apparatus for subterranean fracturing  
A subterranean formation stimulation system, comprising a gas generator, a high pressure seal, and a fluid injection system. The high pressure seal may be a packer and or plug having an outer...
7784541 System and method for low damage fracturing  
A system includes a wellbore in fluid communication with a formation of interest and a fracturing slurry include a carrier fluid with a low amount of a viscosifier, an amount of proppant including...
7781381 Method for controlling inorganic fluoride scales  
The productivity of hydrocarbons from hydrocarbon-bearing calcareous or siliceous formations is enhanced by contacting the formation with a well treatment composition which contains a hydrofluoric...
7775278 Degradable material assisted diversion or isolation  
A method for well treatment by forming a temporary plug in a fracture, a perforation, a wellbore, or more than one of these locations, in a well penetrating a subterranean formation is provided, in...
7770644 Self diverting matrix acid  
A method is described for treating a subterranean formation with a low viscosity fluid system that contains a viscoelastic surfactant at a concentration too low to viscosify the fluid, but that is...
7770647 Hydraulic fracturing of subterranean formations  
Methods of hydraulically fracturing subterranean coal seams and formations resulting in improved permeability to stimulate Coalbed Methane. In one method, the coal seam is fractured using a...
7766083 Methods of isolating hydrajet stimulated zones  
The present invention is directed to a method of isolating hydrajet stimulated zones from subsequent well operations. The method includes the step of drilling a wellbore into the subterranean...
7753123 Method for treating a subterranean formation  
Acidizing methods for subterranean formations formed of predominantly siliceous material as well as acidizing compositions. Some methods include injecting into a predominantly siliceous...
7754658 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...
7748457 Injection of treatment materials into a geological formation surrounding a well bore  
Methods and systems for creating fractures in a geological formation surrounding a well bore. In one implementation, a treatment material may be disposed at the bottom of the well bore. One or more...
7743826 In situ method and system for extraction of oil from shale  
A system and process is disclosed for retorting oil shale and extracting shale oil and other hydrocarbons therefrom, in which a cased heat delivery well is drilled generally vertically through an...
7735558 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...
7735551 Method and system for fracturing subterranean formations with a proppant and dry gas  
A method and system for stimulating underground formations is disclosed. The method includes injecting pressurized gas and low concentrations of proppant material at a rate and pressure sufficient...
7712533 Method for treating a subterranean formation with water-in-oil emulsion  
The permeability of a subterranean formation is improved by introducing into the formation a water-in-oil emulsion. Unwanted particulates deposited in the formation during the production of oil are...
7703522 Methods of underground formation consolidation  
Unconsolidated formation sand in the near wellbore region may be uniformly consolidated using a system including a sodium silicate solution and a hardener, such as at least one dialkyl ester of a...
7704927 Method of acid fracturing a sandstone formation  
Methods and compositions useful in acidizing a subterranean formation with an oil-in-water emulsion that includes a sulfonate ester, a fluoride salt, a proppant, and water. The reaction of the...
7694731 Truck-mounted pumping system for treating a subterranean formation via a well with a mixture of liquids  
An efficient truck-mounted injection system for injecting a combined aqueous or hydrocarbon-based liquid stream and a liquid carbon dioxide stream via a well into a subterranean formation.