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| Number | Title | Issue Date |
| 8167045 | Methods and compositions for stabilizing formation fines and sand Methods comprising providing a polymerizable treatment fluid that comprises furfuryl alcohol monomer dispersed in an aqueous base fluid; introducing the polymerizable treatment fluid to a portion of a subterranean formation; and allowing the polymerizable treatment ... | 05/01/2012 |
| 8132623 | Methods of using lost circulation compositions A method of servicing a wellbore in contact with a subterranean formation, comprising: placing a wellbore servicing fluid comprising a crosslinkable polymer system and a filler into a lost circulation zone within the wellbore. A method of blocking the flow of fluid ... | 03/13/2012 |
| 8096360 | Alkaline β-mannanase containing compositions useful for the hydrolysis of guar in high pH environments and methods related thereto Methods and compositions of fracturing formations are provided. The fracturing fluid includes an enzyme breaker that decreases the viscosity of the fracturing fluid over time. The enzyme breaker can be used in environments having a pH value ranging from about 7 to a... | 01/17/2012 |
| 8042614 | Fiber laden energized fluids and methods of use thereof The present invention relates to aqueous oilfield treatment fluids containing a gas component and fibers, wherein the fluids may further include a viscosifying agent and/or proppant. The fluids have good proppant suspension and transport properties as well as excell... | 10/25/2011 |
| 7987912 | Reversible polymeric gelation for oilfield applications A subterranean location accessed via a wellbore is treated with an oilfield fluid containing a viscosifying agent which is a polymer and a cross-linking agent which can undergo the Diels-Alder reaction to form a gel. Conditions at the subterranean location alter flu... | 08/02/2011 |
| 7963333 | Controlling the pressure within an annular volume of a wellbore A process is described for replacing at least a portion of the liquid within the annular volume of a casing system within a wellbore with a second liquid. The second liquid is preselected to provide a measure of control of the pressure within the annular volume as t... | 06/21/2011 |
| 7946345 | Methods and compositions for carrier fluids comprising water-absorbent fibers The present invention relates to methods and compositions for carrier fluids comprising water-absorbent fibers. One embodiment of the present invention provides a method of treating a portion of a subterranean formation, comprising providing a slurry wherein the slu... | 05/24/2011 |
| 7926567 | Method for controlled gelation of silicates A process for forming a gel, which process comprises mixing an alkaline silicate solution with a polymer in solid form, the polymer being capable of being converted by hydrolysis into one or more organic acids; and allowing the polymer to release sufficient acid to ... | 04/19/2011 |
| 7921912 | 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 methods are provided. An example is a method that comprises: providing an ... | 04/12/2011 |
| 7909101 | Apparatus and method for increasing well production An apparatus and method for hydrocarbon recovery in a well for coal bed methane (CBM) recovery, tight sand gas extraction, and other gas extraction techniques provides for the formation of a hydrocarbon foam comprised of a fluid delivered into a downhole portion of ... | 03/22/2011 |
| 7905287 | Methods of using a polymeric precipitate to reduce the loss of fluid to a subterranean formation Methods are provided for reducing the loss of a wellbore servicing fluid to a subterranean formation. A polymeric solution and an activator may be contacted in the formation, thereby forming a precipitate to at least partially block fluid from flowing further into t... | 03/15/2011 |
| 7905288 | Olefin metathesis for kerogen upgrading A method for chemically-upgrading shale-bound kerogen comprises contacting shale-bound kerogen comprising carbon-carbon double bonds with a quantity of alkene species in the presence of an olefin metathesis catalyst. A catalyzed metathetical reaction occurs between ... | 03/15/2011 |
| 7886823 | Well remediation using downhole mixing of encapsulated plug components A two part encapsulated cementing system is mixed downhole in a method of remediation of an active well. Using this two part system, one of the components is first placed in the well at the desired remediation depth. Next, the other component is placed in the well a... | 02/15/2011 |
| 7886824 | Compositions and methods for gas well treatment A microemulsion system is disclosed which comprises a solvent subsystem, a co-solvent subsystem and a surfactant subsystem comprises at least one monoalkyl branched propoxy sulfate anionic surfactant, where the microemulsion system are useful in drilling, producing,... | 02/15/2011 |
| 7878248 | System, method, and apparatus for post-fracture treatment A method includes hydraulically fracturing a subterranean formation with a first treatment fluid and allowing the hydraulic fracture to close. The method includes preparing a second treatment fluid having a damage removal agent including carbon dioxide. The second t... | 02/01/2011 |
| 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 up time, solidifies and blocks water conduits and establishes post tr... | 01/25/2011 |
| 7857055 | High temperature fracturing fluids and method of use A treatment fluid for treating a subterranean formation is formed from an aqueous solution of a polysaccharide, a polyacrylamide, a crosslinking agent, which may be a Group 4 transition metal crosslinking agent, and less than 0.1% by weight of any clay component. In... | 12/28/2010 |
| 7841411 | Use of polyimides in treating subterranean formations A method of treating a subterranean formation penetrated by a wellbore is carried out by forming a treatment fluid comprising an aqueous carrier fluid and a solid-form polyimide homopolymer or copolymer capable of hydrolyzing to form polycarboxylates and/or polycarb... | 11/30/2010 |
| 7814980 | Micro-crosslinked gels and associated methods Methods of forming and utilizing micro-crosslinked gels are disclosed, including a method comprising: providing a micro-crosslinked gel that comprises micro-domains; and placing the micro-crosslinked gel into a subterranean formation via a well bore penetrating the ... | 10/19/2010 |
| 7748456 | Dual functional components and associated methods Many methods and compositions are provided. One of the methods provided comprises the steps of: providing an aqueous treatment fluid that comprises a polysaccharide and a dual functional component, the aqueous treatment fluid having a first viscosity; allowing the d... | 07/06/2010 |
| 7740070 | Wellbore servicing compositions comprising a density segregation inhibiting composite and methods of making and using same A method of servicing a wellbore comprising placing a wellbore servicing fluid comprising a density segregation inhibitor composite into the wellbore, wherein the density segregation inhibitor composite comprises a high density additive and a low density additive; a... | 06/22/2010 |
| 7703527 | Aqueous two-phase emulsion gel systems for zone isolation A low viscosity wellbore polymer fluid gelling system comprising an aqueous medium and a water-in-water emulsion comprising a plurality of polymers or oligomers, including at least one removable polymer or oligomer, and at least one gelling polymer or oligomer, wher... | 04/27/2010 |
| 7690429 | Methods of using a swelling agent in a wellbore In an embodiment, a sealant composition comprising a swelling agent is displaced into a wellbore penetrating a subterranean formation to maintain isolation of the formation. The sealant composition may be displaced into a permeable zone through which fluid can undes... | 04/06/2010 |
| 7686084 | Well 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 ... | 03/30/2010 |
| 7665522 | Fiber laden energized fluids and methods of use The present invention relates to aqueous oilfield treatment fluids containing a gas component and fibers, wherein the fluids may further include a viscosifying agent and/or proppant. The fluids have good proppant suspension and transport properties as well as excell... | 02/23/2010 |
| 7665523 | Compositions and methods for treatment of well bore tar Of the many compositions and methods provided herein, one method includes a method comprising: contacting tar resident in a well bore with a treatment fluid comprising a styrene-acrylate polymer; and allowing the styrene-acrylate polymer to interact with the tar to ... | 02/23/2010 |
| 7644764 | Polyelectrolyte complexes as delayed gelling agents for oil and gas applications A gel-forming composition for reducing the permeability of a subterranean formation or zone comprising a water soluble polymer (e.g., Alcoflood® 935) and a polyelectrolyte gelling agent comprising a polycation (e.g., polyalkylene imine) and a polyanion (e.g., dextr... | 01/12/2010 |
| 7635028 | Acidic internal breaker for viscoelastic surfactant fluids in brine Compositions and methods are given for delayed breaking of viscoelastic surfactant gels inside formation pores, particularly for use in hydraulic fracturing. Breaking inside formation pores is accomplished without mechanical intervention or use of a second fluid. Ac... | 12/22/2009 |
| 7631695 | Wellbore zonal isolation system and method A method of completing a wellbore includes the steps of connecting an isolation tool to a conveyance, the isolation tool including a tubular base member having an internal bore and an outer housing forming a first chamber and a second chamber separated by a wall; th... | 12/15/2009 |
| 7584793 | Method for treating subterranean formation A method is provided for treating a subterranean formation penetrated by a well bore comprising the steps of: a) forming a phosphate ester gelled hydrocarbon fracturing fluid comprising a liquid hydrocarbon and a an alkyl phosphate... | 09/08/2009 |
| 7559372 | Composition and process for enhanced oil recovery The present invention includes a cost effective custom-designed blend of organic chemicals to stimulate oil production. The invention includes a chemical composition for use in drilling operations for oil recovery and the method of using the chemical composition. Th... | 07/14/2009 |
| 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 contains 5 to 40 weight per cent of a dissolved compound based on α-branch... | 05/19/2009 |
| 7481273 | Method of using water-in-oil emulsion to remove oil base or synthetic oil base filter cake Fluid producing or injecting wells may be treated with a water-in-oil emulsion for the removal or inhibition of unwanted particulates, including pipe dope, asphaltenes and paraffins. In addition, such emulsions are effective in the displacement of oil base drilling ... | 01/27/2009 |
| 7475728 | Treatment fluids and methods of use in subterranean formations The present invention relates to subterranean treatment operations. More particularly, the present invention relates to improved treatment fluids and methods of using such improved treatment fluids in subterranean formations. An example of a method of the present in... | 01/13/2009 |
| 7445044 | Polymer mixtures for crosslinked fluids Treatment fluids comprising gelling agents that comprise crosslinkable polymers and certain biopolymers, and methods of use in subterranean operations, are provided. In one embodiment, the present invention provides a method of treating a portion of a subterranean f... | 11/04/2008 |
| 7441596 | Swelling element packer and installation method A sealing element that swells on exposure to well fluids present or added to the wellbore is assembled to the mandrel in a manner to induce circumferential stresses proximately to the inside diameter of the element so as to resist the tendency of the inside diameter... | 10/28/2008 |
| 7441599 | Controlling the pressure within an annular volume of a wellbore A process is described for replacing at least a portion of the liquid within the annular volume of a casing system within a wellbore with a second liquid. The second liquid is preselected to provide a measure of control of the pressure within the annular volume as t... | 10/28/2008 |
| 7431086 | Methods of servicing a wellbore with compositions comprising quaternary material and sorel cements A method of servicing a wellbore in contact with a subterranean formation comprising viscosifying a cement composition comprising a metal oxide and a soluble salt, placing the viscosified cement composition in the wellbore, and allowing the composition to set. A met... | 10/07/2008 |
| 7431087 | Internal breaker for oilfield fluids Delayed breakers are given that break viscoelastic surfactant fluids inside the pores of formations into which the fluids have been injected. The breakers comprise proteins, proteins that contain breakers, or cells that contain breakers. Proteins become breakers, an... | 10/07/2008 |
| 7413016 | Polymer mixtures for crosslinked fluids Treatment fluids comprising gelling agents that comprise crosslinkable polymers and certain biopolymers, and methods of use in subterranean operations, are provided. In one embodiment, the present invention provides a method of treating a portion of a subterranean f... | 08/19/2008 |
