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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...
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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...
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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...
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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...
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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)...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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.
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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.
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