Quotables
"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 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 into the production well. The surfactant solution selected to increase... | 04/03/2012 |
| 8109336 | Method of fracturing using ultra lightweight proppant suspensions and gaseous streams In a method of hydraulically fracturing a hydrocarbon-bearing subterranean formation, a proppant stage is introduced into the fracture which contains a gaseous fluid and an ultra lightweight proppant suspended in a viscosified aqueous fluid. The gaseous fluid of the... | 02/07/2012 |
| 7913762 | Method of fracturing using ultra lightweight proppant suspensions and gaseous streams In a method of hydraulically fracturing a hydrocarbon-bearing subterranean formation, a proppant stage is introduced into the fracture which contains a gaseous fluid and an ultra lightweight proppant suspended in a viscosified aqueous fluid. The gaseous fluid of the... | 03/29/2011 |
| 7857057 | Method of fracturing hydrocarbon-bearing formation with coated porous polyolefin particulate Methods and compositions useful for subterranean formation treatments, such as hydraulic fracturing treatments and sand control that include porous materials. Such porous materials may be selectively configured porous material particles manufactured and/or treated w... | 12/28/2010 |
| 7823644 | In-situ method of producing oil shale, on-shore and off-shore A method is provided for in-situ production of oil shale wherein a network of fractures is formed by injecting liquified gases into at least one substantially horizontally disposed fracturing borehole. Heat is thereafter applied to liquify the kerogen so that oil sh... | 11/02/2010 |
| 7726404 | Use of carbon-dioxide-based fracturing fluids A method of treating a shale-containing subterranean formation penetrated by a wellbore is accomplished by forming a carbon dioxide treatment fluid having a viscosity of less than about 10 mPa-s at a shear rate of about 100 s−1. The carbon dioxide treat... | 06/01/2010 |
| 7712535 | Oxidative systems for breaking polymer viscosified fluids A fluid breaking composition which includes an effective amount of an alkali chlorite and/or hyperchlorite, where the composition reduces a viscosity of a polymer viscosified fluid to a desired low value at down hole conditions within a time period coincident with a... | 05/11/2010 |
| 7677317 | Liquid carbon dioxide cleaning of wellbores and near-wellbore areas using high precision stimulation The invention relates to a method to clean a wellbore and the near wellbore area adjacent to the wellbore of a hydrocarbon bearing formation adjacent to the production zone of the wellbore. The invention includes a method to clean a casing inserted into a wellbore a... | 03/16/2010 |
| 7621335 | Viscosity breaker for polyacrylamide friction reducers A well treating fluid useful in slickwater fracturing processes contains polyacrylamide friction reducer and a viscosity breaker capable of reducing the viscosity of the well treating fluid to about the viscosity of water at ambient temperatures of typical undergrou... | 11/24/2009 |
| 7581594 | Surfactant method for improved oil recovery from fractured reservoirs A method to enhance oil recovery from a fractured carbonate reservoir, the reservoir being accessible via a production well. The method includes injecting a surfactant solution including surfactants into the production well, and injecting a second well treatment pro... | 09/01/2009 |
| 7562711 | Hydraulic injection of biocide into tanks A method of servicing a wellbore comprising transporting at least two portable tanks to a well site to be serviced, and hydraulically injecting biocide into a first of the two tanks, wherein a second of the two tanks serves as a fluid source for conveying the biocid... | 07/21/2009 |
| 7533725 | Method and system for altering pore pressure in a fracturing operation A method and a system for accessing a target fluid in a formation of an oilfield are provided. The method involves acquiring physicochemical property information of a portion of the formation, determining a type and a concentration of a chemical agent based on the p... | 05/19/2009 |
| 7510009 | Method of acidizing a subterranean formation with diverting foam or fluid A method of acidizing a subterranean formation with a diverting agent composed of a gelled or thickened viscoelastic foam or fluid generated from (i.) an amidoamine oxide gelling agent and (ii.) an acid or foam, water and/or brine. The gelled or thickened foam or fl... | 03/31/2009 |
| 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 |
| 7426961 | Method of treating subterranean formations with porous particulate materials Methods and compositions useful for subterranean formation treatments, such as hydraulic fracturing treatments and sand control that include porous materials. Such porous materials may be selectively configured porous material particles manufactured and/or treated w... | 09/23/2008 |
| 7416022 | In-situ method of producing oil shale, on-shore and off-shore A method is provided for in-situ production of oil shale wherein a network of fractures is formed by injecting liquified gases into at least one substantially horizontally disposed fracturing borehole. Heat is thereafter applied to liquify the kerogen so that oil sh... | 08/26/2008 |
| 7413013 | Surfactant-based fluid loss control agents for surfactant gels and associated fluids and methods Of the many methods provided, in one aspect, the present invention provides a method comprising: providing a treatment fluid comprising: an aqueous base fluid, a first surfactant, and a surfactant-based fluid loss control agent capable of forming a viscoelastic flui... | 08/19/2008 |
| 7410934 | Aqueous viscoelastic fluid The invention concerns an aqueous viscoelastic fluid for use in the recovery of hydrocarbons. According to the invention, the aqueous viscoelastic fluid comprises a monomer, a dimer or an oligomer of a viscoelastic surfactant able to form a viscoelastic gel under do... | 08/12/2008 |
| 7401649 | Methods for controlling particulate migration Methods are provided for 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 fluid; contacting the po... | 07/22/2008 |
| 7398824 | Method for inhibiting or controlling inorganic scale formations with copolymers of acrylamide and quaternary ammonium salts A formulation containing a copolymer derived from a cationic monomer effectively inhibits and controls the formation of inorganic scales. Suitable copolymers include those comprising an acrylamide unit and a quaternary ammonium salt group, and optionally an acrylate... | 07/15/2008 |
| 7399732 | Fracturing fluid containing amphoteric glycinate surfactant An improved method and fracturing fluid for hydraulic fracturing of a subterranean formation, the fracturing fluid including a surfactant, a water soluble or dispersible anionic organic salt, an acid and a low molecular weight organic solvent. ... | 07/15/2008 |
| 7398826 | Well treatment with dissolvable polymer Well treatment is disclosed that includes injecting a well treatment fluid with insoluble polyol polymer such as polyvinyl alcohol (PVOH) dispersed therein, depositing the insoluble polymer in the wellbore or an adjacent formation, and thereafter dissolving the poly... | 07/15/2008 |
| 7387987 | Rheology modifiers A method for increasing the rate of shear rehealing of fluids made with cationic, zwitterionic, and amphoteric viscoelastic surfactant fluid systems by adding an effective amount of a polymeric rheology enhancer selected from polypropylene glycols and block copolyme... | 06/17/2008 |
| 7387985 | Monovalent cation-containing well fluids A monovalent cation containing well fluid composed of an aqueous brine containing at least 0.6 equivalents per liter of a water soluble monovalent cation salt, is substantially free of divalent cations, and an amount of a starch derivative selected such that the wel... | 06/17/2008 |
| 7380600 | 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 which the method of well treatment includes: injecting a slurry comp... | 06/03/2008 |
| 7380601 | Degradable fiber systems for stimulation A method for minimizing the amount of metal crosslinked viscosifier necessary for treating a wellbore with proppant or gravel is given. The method includes using fibers to aid in transporting, suspending and placing proppant or gravel in viscous carrier fluids other... | 06/03/2008 |
| 7378378 | Rheology enhancers A method for increasing the rate of shear rehealing of fluids made with cationic, zwitterionic, and amphoteric viscoelastic surfactant fluid systems by adding an effective amount of a rheology enhancer package containing, for example a polyethylene glycol-polypropyl... | 05/27/2008 |
| 7358215 | Quaternary 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 |
| 7343972 | System stabilizers and performance enhancers for aqueous fluids gelled with viscoelastic surfactants An aqueous, viscoelastic fluid gelled with a viscoelastic surfactant (VES) is stabilized and improved with an effective amount of an alkali earth metal oxide and/or alkali earth metal hydroxide. These fluids are more stable and have reduced or no tendency to precipi... | 03/18/2008 |
| 7343976 | Methods of treating subterranean formations using derivatized gelling agents One embodiment of the present invention provides methods of treating a subterranean formation with a viscosified treatment fluid comprising combining water, a carbonyl-containing first compound, and an amine-containing second compound; wherein the carbonyl-containin... | 03/18/2008 |
| 7341107 | Viscoelastic 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 |
| 7341980 | Viscoelastic 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 |
| 7334640 | Methods for reducing the viscosity of treatment fluids Methods of treating a subterranean formation comprising providing a viscosified treatment fluid that comprises a base fluid and a gelling agent, providing a breaker composition that comprises an oxidizing breaker and a breaker activator that comprises a metal and a ... | 02/26/2008 |
| 7318475 | Matrix 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 |
| 7311146 | 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 water, and a friction reducing copolymer that comprises acrylamide and an acrylic acid ester; and introducing the aqueous treatment fluid into the ... | 12/25/2007 |
| 7308939 | Methods of using polymer-coated particulates Methods are provided including a method comprising: providing a treatment fluid comprising particulates at least partially coated with a polymer, wherein the polymer is deposited on the particulates by at least partially coating the particulates with a polymer solut... | 12/18/2007 |
| 7306041 | Method for treating a subterranean formation Disclosed are acid fracturing methods for subterranean siliceous formations employing a viscous dissolving fluid to create a permeable conduit that bypasses the near wellbore damage. The viscous dissolving fluids used according to the invention are acid-fracturing t... | 12/11/2007 |
| 7303019 | Viscoelastic 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 |
| 7303018 | Method of acidizing a subterranean formation with diverting foam or fluid A method of acidizing a subterranean formation with a diverting agent composed of a gelled or thickened viscoelastic foam or fluid generated from (i.) an amidoamine oxide gelling agent and (ii.) an acid or foam, water and/or brine. The gelled or thickened foam or fl... | 12/04/2007 |
| 7303012 | Propped 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 |
