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7632785 |
Method for simultaneous removal of asphaltene, and/or paraffin and scale from producing oil wells
A method for cleaning oil wells to increase the flow of oil thereof by use of a unique aqueous cleaning emulsion comprising of water, hydrocarbon solvent, and detergent. This one step method...
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7624803 |
Injection apparatus for injecting an activated fluid into a well-bore and related injection method
An injection apparatus for injecting an activated fluid and an activated chemical fluid mixture into a well-bore is disclosed. Then, an injection method for injecting an activated fluid into a...
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7625846 |
Application of degradable polymers in well fluids
Degradable polylactic or polyhydroxyalkanoate polymers may be used to viscosify aqueous fluids for use in wells. Sand control screen or liner can be coated with a solid degradable polymer during...
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7621334 |
Acidic treatment fluids comprising scleroglucan and/or diutan and associated methods
In one embodiment, a method is provided comprising: providing an acidic treatment fluid that comprises a gelling agent that comprises an aqueous base fluid, an acid, and a gelling agent that...
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7621328 |
Methods of pumping fluids having different concentrations of particulate with different concentrations of hydratable additive to reduce pump wear and maintenance in the forming and delivering of a treatment fluid into a wellbore
The invention is for a method of forming and delivering a treatment fluid into a wellbore. In one aspect, a method is provided for pumping a first fluid having a relatively high concentration of a...
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7621330 |
Methods of using a lower-quality water for use as some of the water in the forming and delivering of a treatment fluid into a wellbore
The invention is for a method of forming and delivering a treatment fluid into a wellbore. In one aspect, a method is provided for pumping a first fluid having a relatively high concentration of a...
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7621329 |
Methods of pumping fluids having different concentrations of particulate at different average bulk fluid velocities to reduce pump wear and maintenance in the forming and delivering of a treatment fluid into a wellbore
The invention is for a method of forming and delivering a treatment fluid into a wellbore. In one aspect, a method is provided for pumping a first fluid having a relatively high concentration of a...
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7617873 |
System and methods using fiber optics in coiled tubing
Apparatus having a fiber optic tether disposed in coiled tubing for communicating information between downhole tools and sensors and surface equipment and methods of operating such equipment....
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7618927 |
Increased rate of penetration from low rheology wellbore fluids
A method of increasing a rate of penetration when drilling as compared to drilling with a baseline drilling fluid comprising an API-grade barite weighting agent and having a given sag, settling...
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7615517 |
Use of mineral oils to reduce fluid loss for viscoelastic surfactant gelled fluids
Fluids viscosified with viscoelastic surfactants (VESs) may have their fluid loss properties improved with at least one mineral oil which has a viscosity greater than 20 cps at ambient temperature....
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7615518 |
Composition for denaturing and breaking down friction-reducing polymer and for destroying other oil well contaminants
A composition and method for breaking down and denaturing friction-reducing compound introduced into the ground during the drilling of oil wells and for destroying other contaminants and biohazards...
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7614450 |
Pumping system and method for injecting a mixture of liquids into a subterranean formation
A system and method to inject a combined hydrocarbon-based liquid stream and a liquid carbon dioxide stream into a subterranean formation via a well using a single high-pressure pump.
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7615516 |
Microemulsion containing oil field chemicals useful for oil and gas field applications
Useful microemulsions have corrosion inhibitors in the internal phase and an external phase and at least one surfactant that helps define the emulsion. The corrosion inhibitor itself may have its...
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7612022 |
Method and composition for enhanced hydrocarbons recovery
A method of treating a hydrocarbon containing formation is described. The method may include providing a hydrocarbon recovery composition to the hydrocarbon containing formation. Hydrocarbons in...
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7595280 |
Delayed tackifying compositions and associated methods involving controlling particulate migration
Delayed tackifying compositions are provided for reducing particulate migration in subterranean formations, the compositions comprising an aqueous tackifying agent and a delayed-acid releasing...
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7595282 |
Methods and compositions of controlling the rheology of a diutan-containing well treatment fluid at high temperatures
The invention provides a method for treating a subterranean formation penetrated by a wellbore, the method comprising the steps of formulating a treatment fluid and introducing the treatment fluid...
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7595283 |
Methods and compositions for reducing the production of water and stimulating hydrocarbon production from a subterranean formation
The present invention relates to subterranean treatment fluids, and more particularly, the present invention relates to subterranean treatment fluids comprising relative permeability modifiers and...
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7591313 |
Methods of treating particulates and use in subterranean formations
Provided are methods of modifying the surface stress-activated reactivity of proppant particulates used in subterranean operations. In one embodiment, the methods comprise: providing a plurality of...
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7589048 |
Methods and compositions for reducing the production of water and stimulating hydrocarbon production from a subterranean formation
The present invention relates to subterranean treatment fluids, and more particularly, the present invention relates to subterranean treatment fluids comprising relative permeability modifiers and...
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7585817 |
Compositions and methods for improving the productivity of hydrocarbon producing wells using a non-ionic fluorinated polymeric surfactant
Compositions comprise nonionic fluorinated polymeric surfactants and solvent. The solvent comprises: at least one of a polyol or polyol ether, wherein the polyol and polyol ether have from 2 to 25...
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7585818 |
Nonnatural galactomannans and methods of use
Methods comprising: providing a treatment fluid comprising: an aqueous base fluid and a gelling agent that comprises a nonnatural galactomannan; and placing the treatment fluid into the...
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7582590 |
Subterranean treatment fluids, friction reducing copolymers, and associated methods
Methods of treating a portion of a subterranean formation comprising: providing an aqueous treatment fluid comprising an aqueous fluid and a friction reducing copolymer that comprises acrylamide...
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7575062 |
Methods and devices for treating multiple-interval well bores
Methods and devices are provided for treating multiple interval well bores. More particularly, an isolation assembly may be used to allow for zonal isolation to allow treatment of selected...
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7576041 |
Bromine-based sulfamate stabilized breaker composition and process
A process for reducing the viscosity of fracturing fluids in downhole oilfield operations is provided. The process comprises contacting a sulfamate stabilized, bromine-based breaker with an aqueous...
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7575057 |
Polymeric gel system and use in hydrocarbon recovery
Coacervate gels having excellent shear viscosities and other properties are made with anionic or cationic polymers, a smaller amount of a surfactant having a charge opposite that of the polymer,...
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7572757 |
Method of treating a well with a gel stabilizer
The present invention relates to the use of chalcogen heterocyclic electron donating compounds as thermal decomposition reduction additives for gels used in well treatment fluids such as drilling...
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7563750 |
Methods and compositions for the diversion of aqueous injection fluids in injection operations
An exemplary method of the present invention for performing an injection operation includes providing a water-soluble relative permeability modifier, introducing the water-soluble relative...
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7559369 |
Well treatment composition and methods utilizing nano-particles
Disclosed embodiments relate to well treatment fluids and methods that utilize nano-particles. Exemplary nano-particles are selected from the group consisting of particulate nano-silica,...
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7559363 |
Wiper darts for subterranean operations
Methods and devices useful in subterranean treatment operations are provided. One example of a device is a dart having a deformable body, a nosepiece connected to a lower terminus of the deformable...
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7560419 |
Method and biodegradable super absorbent composition for preventing or treating lost circulation
A lost circulation material and method for treatment employing the material is provided that has particular utility in offshore applications because the material may be used with saltwater or...
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7556098 |
Oil recovery method employing amphoteric surfactants
An oil recovery method employing amphoteric surfactants with the steps of: a) Injecting into one or more injection wells an aqueous solution containing a mixture of amphoteric surfactants...
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7556100 |
Apparatus and method for delivering chemicals into an underground well
In some embodiments, a method of delivering at least one chemical into an underground well equipped with a reciprocating plunger includes retaining the plunger above the well after the well is...
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7552770 |
Heavy wax stimulation diverting agent
A method and composition for isolating a selected subterranean formation in a subterranean formation having a gravel pack over a plurality of producing zones.
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7549472 |
Method for increasing the production of hydrocarbon liquids and gases
A method for reducing or eliminating water block around a well bore of a well bore region in a reservoir is provided. The method comprises removing the water from around the well bore, injecting...
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7547664 |
Additives comprising chlorinated carbohydrates
Additives for use in treatment operations, and more particularly, additives that include chlorinated carbohydrates, are provided. An example of an additive is a well fluid additive for use in a...
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7547665 |
Acidic treatment fluids comprising scleroglucan and/or diutan and associated methods
Treatment fluids are provided that comprise a gelling agent that comprises scleroglucan and/or diutan.
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7544642 |
Zeolite-containing remedial compositions
Methods and compositions for wellbore treating fluids that include zeolite and at least one carrier fluid.
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7543644 |
Concentrated suspension of particulate additives for fracturing and other fluids
The handling, transport and delivery of particulate materials, particularly fine particles, may be difficult. Alkaline earth metal oxide particles such as magnesium oxide (MgO) may be suspended in...
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7544643 |
Viscosity enhancers for viscoelastic surfactant stimulation fluids
Piezoelectric crystal particles (which include pyroelectric crystal particles) enhance the viscosity of aqueous fluids that have increased viscosity due to the presence of viscoelastic surfactants...
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7543646 |
Suspension of concentrated particulate additives containing oil for fracturing and other fluids
The handling, transport and delivery of particulate materials, particularly fine particles, may be difficult. Alkaline earth metal oxide particles such as magnesium oxide (MgO) may be suspended in...
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7543645 |
Method for servicing a well bore using a mixing control system
A method for servicing a well bore comprises connecting a mixing system to the well bore, controlling the mixing system to produce a material mixture with approximately a desired density, and...
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7544639 |
Composition and process for the treatment of hydrogen sulfide
Disclosed is a method for the treatment of hydrogen sulfide. The method preferably includes forming a solvent-surfactant blend, preparing a microemulsion by combining the solvent-surfactant blend...
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7541316 |
Wellbore treatment fluids having improved thermal stability
Aqueous wellbore treatment fluids having improved thermal stability are provided. The wellbore treatment fluids comprise at least one polysaccharide and an effective amount of at least one...
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7533723 |
Well bore treatment fluid
A well bore treatment fluid and methods for selectively reducing the outflow of water during recovery of hydrocarbons from a hydrocarbon reservoir in a formation are described, wherein fluid...
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7513307 |
Pumping system for injecting a mixture of liquids via a well into a subterranean formation
A system and method to inject a combined aqueous or hydrocarbon-based liquid stream and a liquid carbon dioxide stream into a subterranean formation via a well using a single high-pressure pump.
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7507692 |
Methods for reducing circulation loss during drilling operations
A method for reducing circulation loss during drilling operations, the method comprising: performing drilling operations using a water-based drilling fluid system comprising a first amount of water...
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7500517 |
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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7500519 |
Methods of modifying fracture faces and other surfaces in subterranean formations
Provided are methods of modifying the stress-activated reactivity of subterranean fracture faces and other surfaces in subterranean formations. In one embodiment, the methods comprise: providing a...
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7488704 |
Invert drilling fluids for use in drilling in subterranean formations
Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such...
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7484565 |
Methods and apparatus for injecting fluids at a subterranean location in a well
Disclosed are retrievable through-tubing tools and methods for use in wellbores to inject fluids at subterranean locations wherein the tool have spaced foamed seal elements that are retracted...
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