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Class 507/200 - WELL TREATING


Subclass of Class 507 - Earth boring, well treating, and oil field chemistry
Definition: Well treating compositions which are (a) liquid, gas, or
No. of patents: 224
Last issue date: 01/08/2013


1            
NumberTitleIssue Date
8349771Method for improving the clean-up of emulsified acid fluid systems
Using a complex emulsion for treating a subterranean formation, such as to dissolve minerals therein (e.g. carbonates, scales, and/or filter cake) to improve permeability, substantially improves post treatment fluid clean-up for improved hydrocarbon production. The ...
01/08/2013
8293687Compositions and processes for fracturing subterranean formations
The present invention is directed to novel additives packages, to fluid compositions including the additives, to methods of using the fluid compositions and the additives package, to methods of recovering hydrocarbons, and to petroleum products made from hydrocarbon...
10/23/2012
8119574High solids content slurries and methods
A slurry and method are disclosed for low damage gravel packing. The slurry comprises a solids mixture comprising a plurality of volume-averaged particle size distribution (PSD) modes such that a packed volume fraction (PVF) exceeds 0.75; a carrier fluid in an amoun...
02/21/2012
8114817Filtercake removal composition and system
A treatment fluid and system are disclosed for cleaning borehole filtercake using the treatment fluid, wherein the filtercake contains reservoir drilling fluid (RDF) solids. The treatment fluid comprises a fluoride source providing a 1.2 to 5 molar fluoride concentr...
02/14/2012
7902126Well lost circulation additive, lost circulation treatment fluid made therefrom, method of minimizing lost circulation in a subterranean formation
For lost circulation treatment, a lost circulation additive including a dry mixture of water soluble crosslinkable polymer, a crosslinking agent, and a reinforcing material of fibers and/or comminuted plant materials. The method of forming a lost circulation fluid i...
03/08/2011
7833947Method for treatment of a well using high solid content fluid delivery
The invention discloses a method of delivering a first chemical component to a subterranean formation in a wellbore comprising: providing a fluid comprising a carrier fluid and at least two different sizes of solid particulate materials selected from a group consist...
11/16/2010
7790656Proppants and anti-flowback additives made from sillimanite minerals, methods of manufacture, and methods of use
Spherical and rod-shaped proppants and anti-flowback agents made from sillimanite minerals possess high strength and high conductivity. The sillimanite minerals may be selected from the group consisting of kyanite, sillimanite, and andalusite and may be used alone o...
09/07/2010
7737091Proppants and anti-flowback additives made from sillimanite minerals, methods of manufacture, and methods of use
Spherical and rod-shaped proppants and anti-flowback agents made from sillimanite minerals possess high strength and high conductivity. The sillimanite minerals may be selected from the group consisting of kyanite, sillimanite, and andalusite and may be used alone o...
06/15/2010
7678744Hydrocarbon industry servicing fluid and methods of performing service operations
A hydrocarbon industry servicing fluid comprises an irradiated fluid that is biologically inert. The fluid may be irradiated with ultraviolet light. A method comprises performing a hydrocarbon industry service operation with an irradiated fluid that is biologically ...
03/16/2010
7380606Composition and process for well cleaning
Disclosed is a microemulsion well treatment microemulsion that is formed by combining a solvent-surfactant blend with a carrier fluid. In preferred embodiments, the solvent-surfactant blend includes a surfactant and a solvent selected from the group consisting of te...
06/03/2008
7363978Methods of using reactive surfactants in subterranean operations
Novel uses of reactive surfactants in treating subterranean formations and/or proppant particulates are provided. In one embodiment, the present invention provides a method comprising: providing a treatment fluid that comprises a base fluid and a reactive surfactant...
04/29/2008
7361628Remote delivery of latex drag-reducing agent without introduction of immiscible low-viscosity flow facilitator
Latex drag reducers and systems for delivering latex drag reducers are disclosed. The latex drag reducers comprise a polymer that is formed via an emulsion polymerization reaction dispersed in a continuous phase and can undergo subsequent modification in order to in...
04/22/2008
7358215Quaternary ammonium salts as thickening agents for aqueous systems
This invention relates to the use of alkyl amido quaternary ammonium salts, and formulations thereof, as thickening agents in aqueous based fluids, especially those used in oil field applications. The quaternary ammonium salts of the present invention exhibit improv...
04/15/2008
7353876Self-degrading cement compositions and methods of using self-degrading cement compositions in subterranean formations
Methods of stimulating subterranean formations are provided. More particularly, methods of fracturing subterranean formations using a fracturing fluid comprising a self-degrading cement composition are provided. An example of a method is a method of treating a subte...
04/08/2008
7353879Biodegradable downhole tools
A disposable downhole tool or a component thereof comprises an effective amount of biodegradable material such that the tool or the component thereof desirably decomposes when exposed to a wellbore environment. In an embodiment, the biodegradable material comprises ...
04/08/2008
7350579Sand aggregating reagents, modified sands, and methods for making and using same
A method for treating solid materials is disclosed, where the treating compositions coats surfaces or portions of surfaces of the solid materials changing an aggregation or agglomeration propensity of the materials. Treated solid materials are also disclosed. The me...
04/01/2008
7351681Well bore servicing fluids comprising thermally activated viscosification compounds and methods of using the same
Well bore servicing fluids are provided that include a thermally activated viscosification compound. Further, methods of servicing a well bore are provided that include displacing such a servicing fluid into the well bore, wherein a viscosity of the servicing fluid ...
04/01/2008
7350571Methods of preparing and using coated particulates
The present invention involves methods of preparing coated particulates and using such coated particulates in subterranean applications such as production enhancement and sand control. One embodiment of the present invention provides a method of preparing coated par...
04/01/2008
7341107Viscoelastic acid
An acidic viscoelastic surfactant fluid composition is formulated with an acid, for example hydrochloric acid, a cationic surfactant, for example a quaternary amine, and a break-enabling salt, for example NH4Cl. The fluid composition has low viscosity as ...
03/11/2008
7341106Methods for wellbore strengthening and controlling fluid circulation loss
A sealant composition and methods for using the same are disclosed. In an embodiment, a method of servicing a wellbore in contact with a subterranean formation is disclosed. The method comprises placing a sealing agent and a nonaqueous carrier fluid in the wellbore....
03/11/2008
7341617Corrosion and gas hydrate inhibitors having improved water solubility and increased biodegradability
The invention provides the use of compounds of the formula (1) where R1, R2 are each independently C1- to C22-alkyl, C2- to C22-alkenyl, C6...
03/11/2008
7341980Viscoelastic surfactant rheology modification
A method for shortening the shear recovery time of zwitterionic viscoelastic surfactant fluids by adding a rheology enhancer having the structure: R-(EO)x(PO)y—R′—OH in which R is an alkyl group that is straight chaine...
03/11/2008
7338924Oil-in-water-in-oil emulsion
An oil-in-water-in-oil emulsion (O/W/O) comprising a first oil-in-water emulsion dispersed in a second oil, and a method of preparing the same. The O/W/O emulsion can be used as a drive fluid in an enhanced oil recovery process. The O/W/O emulsion of this invention ...
03/04/2008
7337839Fluid loss additive for enhanced fracture clean-up
A hydraulic fracturing method is disclosed that includes designing a fracture treatment including a fluid pumping schedule to fracture a subterranean formation according to a design model that accounts for cumulative filter cake thickness, including polymer concentr...
03/04/2008
7340296Detection of pleural effusion using transthoracic impedance
This patent document discusses systems, devices, and methods for increasing a sensitivity or specificity of thoracic fluid detection in a subject and differentiating between pleural effusion and pulmonary edema. In one example, a thoracic impedance measurement circu...
03/04/2008
7334636Methods of creating high-porosity propped fractures using reticulated foam
One embodiment of the prevent invention provides a method of creating a high porosity propped fracture comprising creating a slurry comprising a treatment fluid, proppant particulates, pieces of reticulated foam having cells, and an adhesive substance such that the ...
02/26/2008
7334635Methods for fracturing subterranean wells
A method of forming a propped fracture comprising: providing a fracture having a far-well bore area and a near-well bore area; placing first proppant particulates at least partially coated with an adhesive substance; placing a portion of second proppant particulates...
02/26/2008
7332458Drilling fluid
A drilling fluid for use in high oil viscosity formations containing tar, sand and oil entrained therein. The drilling fluid can be comprised of a polymer in an amount from between 0.05% and 5% by volume, a solvent in an amount from between 1% and 20% by volume and ...
02/19/2008
7325608Methods of hydraulic fracturing and of propping fractures in subterranean formations
Methods that comprise: providing a carrier fluid comprising a delayed breaker; providing a plurality of proppant aggregates comprising a binder fluid and a filler material; suspending the plurality of proppant aggregates in the carrier fluid; introducing the carrier...
02/05/2008
7326670Well service fluid and method of making and using the same
A well service fluid comprising one or more anionic viscoelastic surfactants and one or more polymers is described. The fluids can contain an aqueous or non-aqueous fluid and/or a buffer for adjusting the pH of the fracturing fluid. The well service fluid can be use...
02/05/2008
7323609Corrosion and gas hydrate inhibitors having improved water solubility and increased biodegradability
The invention provides the use of compounds of the formula (1) where R1, R2 are each independently C1- to C22-alkyl, C2- to C22-alken...
01/29/2008
7320952Additive for viscoelastic fluid
Composition and method for shortening the shear recovery time of cationic, zwitterionic, and amphoteric viscoelastic surfactant fluid systems by adding an effective amount of a co-gelling agent selected from triblock oligomeric compounds having hydrophilic (for exam...
01/22/2008
7318474Methods and compositions for controlling formation fines and reducing proppant flow-back
Provided herein are methods for controlling the migration of particulates within a portion of a subterranean formation that comprise aqueous tackifying treatment fluids, curable resin compositions, and/or noncurable resin compositions. ...
01/15/2008
7318473Methods relating to maintaining the structural integrity of deviated well bores
Methods of enhancing at least partially the structural integrity of a longitudinal portion of a deviated well bore are provided. The methods include providing a gravel matrix composition; providing a longitudinal portion of a deviated well bore; and placing a suffic...
01/15/2008
7318475Matrix acidizing high permeability contrast formations
A method for stimulating thick or multilayered heterogeneous or homogeneous formations in a single trip without packers involves perforating with tubing conveyed perforation, then injecting a self-diverting acid, then moving the tubing string and perforating at a ne...
01/15/2008
7303019Viscoelastic surfactant fluids and associated diverting methods
Provided are treatment fluids that comprise an aqueous base fluid, and a methyl ester sulfonate surfactant, and associated diverting methods of use. In one embodiment, the present invention provides a method of treating a subterranean formation comprising: providing...
12/04/2007
7303012Propped fracture with high effective surface area
Propped fractures in formations from which fluids are produced are described that have wormholes extending out into the formations from the faces of the fractures at locations distant from boreholes. Methods are given for creating such propped fractures having wormh...
12/04/2007
7299875Methods for controlling particulate migration
Many methods are provided including methods of stabilizing a portion of a subterranean formation or reducing the production of particulates from a portion of a subterranean formation comprising contacting the portion of the subterranean formation with a pre-flush fl...
11/27/2007
7299869Carbon foam particulates and methods of using carbon foam particulates in subterranean applications
The present invention relates to carbon foam particulates and their use in subterranean applications such as production enhancement and completion. One embodiment of the present invention provides a method of treating a subterranean formation using a servicing fluid...
11/27/2007
7299874Viscoelastic surfactant fluids and associated methods
Provided are treatment fluids that comprise an aqueous based fluid, a water-soluble salt, and a methyl ester sulfonate surfactant, and associated methods. In one embodiment, a method of treating a subterranean formation is provided, the method comprising: providing ...
11/27/2007
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