| Patent Number |
Title Of Patent |
Date Issued |
| 7320363 |
Energized slip ring assembly |
January 22, 2008 |
| A slip ring assembly including a slip ring and an electrical contact assembly. The slip ring defines a circumference and an electrical contact groove extending around the circumference of the slip ring. The electrical contact assembly preferably includes a plurality of electrical con |
| 7318474 |
Methods and compositions for controlling formation fines and reducing proppant flow-back |
January 15, 2008 |
| 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. |
| 7318473 |
Methods relating to maintaining the structural integrity of deviated well bores |
January 15, 2008 |
| 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 sufficient amount of the |
| 7318471 |
System and method for monitoring and removing blockage in a downhole oil and gas recovery operat |
January 15, 2008 |
| A system and method for determining blockage in a wellbore containing fluid and/or in a formation adjacent the wellbore, according to which energy is generated in the fluid and variables associated with the energy are measured. |
| 7316742 |
Subterranean fluids having improved environmental characteristics and methods of using these flu |
January 8, 2008 |
| Subterranean fluids are provided that have improved environmental characteristics, and more particularly, subterranean fluids are provided that include a hydraulic cement in an invert emulsion. Methods of using such fluids in subterranean operations also are provided. An example of a |
| 7316273 |
Methods and compositions for enhancing hydrocarbon production |
January 8, 2008 |
| The invention provides a composition for use in a subterranean formation penetrated by a wellbore, the composition comprising: a) a solvent consisting essentially of a water-soluble solvent selected from the group consisting of any solvent that is at least 25% by weight soluble in water |
| 7314850 |
Methods and compositions for treating subterranean formations with gelled hydrocarbon fluids |
January 1, 2008 |
| Improved methods and compositions for treating subterranean formations penetrated by well bores are provided. A method for breaking a gelled hydrocarbon fluid comprised of a hydrocarbon liquid, a ferric iron or aluminum polyvalent metal salt of a phosphonic acid ester or dialkylphosp |
| 7314087 |
Heave compensation system for hydraulic workover |
January 1, 2008 |
| The present invention relates generally to offshore drilling and production operations, and, more particularly, to marine drilling workover/intervention tensioning and compensating devices and methodologies. A heave compensated hydraulic workover device and/or system is provided comp |
| 7314082 |
Methods of improving well bore pressure containment integrity |
January 1, 2008 |
| Methods of improving the pressure containment integrity of subterranean well bores are provided. The methods include pumping a fracture sealing composition into the well bore that rapidly converts into a high friction pressure sealing composition which is impermeable, deformable, extreme |
| 7313480 |
Integrated drilling dynamics system |
December 25, 2007 |
| A method and apparatus for controlling a drilling operation involving the rotation of a bottom-hole assembly carried by a drillstring. In one embodiment, an integrated, closed-loop rigsite analysis system is provided for acquiring and analyzing real-time mud logging and downhole data |
| 7312720 |
Multi-loop transmission system |
December 25, 2007 |
| A transmission system between a voltage source and a wireline tool comprising a first loop to transmit a signal between the voltage source and the wireline tool. The first loop has a first transformer coupled to the voltage source. The system also comprises a second loop, electrically |
| 7311158 |
Silicate-containing additives for well bore treatments and associated methods |
December 25, 2007 |
| The present invention relates to methods and compositions for use in subterranean operations. More particularly, the present invention relates to additives comprising one or more silicates used to treat tar resident in a well bore, and methods of use. In one embodiment, the present i |
| 7311147 |
Methods of improving well bore pressure containment integrity |
December 25, 2007 |
| Methods of improving the pressure containment integrity of subterranean well bores are provided. The methods include pumping a fracture sealing composition into the well bore that rapidly converts into a high friction pressure sealing composition which is impermeable, deformable, extreme |
| 7311146 |
Subterranean treatment fluids, friction reducing copolymers, and associated methods |
December 25, 2007 |
| 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 portion of the sub |
| 7311145 |
Re-use of recovered treating fluid |
December 25, 2007 |
| Treating fluid production and subterranean formation treating methods as well as treating fluid compositions that reuse at least part of a prior treating fluid, particularly a fluid having one or more constituents that can be relinked. This includes conditioning a selected at least parti |
| 7308939 |
Methods of using polymer-coated particulates |
December 18, 2007 |
| 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 solution comprising the |
| 7308938 |
Defoaming methods and compositions |
December 18, 2007 |
| Embodiments of the present invention are directed to defoaming methods and compositions for well treatment fluids. An exemplary embodiment of the present invention provides a method of treating a subterranean formation, comprising introducing a treatment fluid comprising a liquid and a |
| 7308936 |
Methods of improving well bore pressure containment integrity |
December 18, 2007 |
| Methods of improving the pressure containment integrity of subterranean well bores are provided. The methods include pumping a fracture sealing composition into the well bore that rapidly converts into a high friction pressure sealing composition which is impermeable, deformable, extreme |
| 7308379 |
Methods and systems for estimating density of a material in a mixing process |
December 11, 2007 |
| A density observer for estimating an actual density of a material with a proportional integral controller responsive to a density error determined by subtracting a feedback estimated density from a sensed density. A method of estimating a density of a material by determining a sensed |
| 7307425 |
Receiver electronics proximate antenna |
December 11, 2007 |
| A resistivity tool includes receiver electronics near each receiver antenna loop. Placement of the electronics in this position such as at the circuit card between the terminal ends of the receiver antenna loop improves signal to noise ratio by reducing or eliminating interference, n |
| 7306058 |
Anti-rotation device for a steerable rotary drilling device |
December 11, 2007 |
| In a drilling apparatus of the type comprising a rotatable drilling shaft and a housing for rotatably supporting a length of the drilling shaft for rotation therein, a rotation restraining device associated with the housing for restraining rotation of the housing. In one embodiment, the |
| 7306044 |
Method and system for lining tubulars |
December 11, 2007 |
| A method for lining tubular includes positioning an expandable liner in a wellbore at a depth of one or more perforations using a downhole depth locator tool. The expandable liner is expanded in the wellbore to line the one or more perforations. |
| 7306040 |
Stimuli-degradable gels |
December 11, 2007 |
| Some methods are provided that comprise: providing a treatment fluid comprising an aqueous fluid, and a stimuli-degradable gel formed by a reaction comprising a gelling agent, and a stimuli-degradable cross linking agent that includes at least one degradable group and two unsaturated |
| 7306037 |
Compositions and methods for particulate consolidation |
December 11, 2007 |
| A method of consolidating a proppant particulates comprising substantially coating proppant particulates with an integrated consolidation fluid comprising a hardening agent that itself comprises a piperazine, a derivative of piperazine, or a combination thereof; placing the coated pr |
| 7303625 |
Treatment fluids comprising chlorinated carbohydrates |
December 4, 2007 |
| Treatment fluid compositions, and more particularly, treatment fluid compositions that include chlorinated carbohydrates. An example is a treatment fluid that includes: a hydraulic cement; water; and a chlorinated carbohydrate. Another example of a treatment fluid is a cement composi |
| 7303019 |
Viscoelastic surfactant fluids and associated diverting methods |
December 4, 2007 |
| 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 a treatment fluid |
| 7303017 |
Perforating gun assembly and method for creating perforation cavities |
December 4, 2007 |
| A perforating gun assembly (60) for creating communication paths for fluid between a formation (64) and a cased wellbore (66) includes a housing (84), a detonator (86) positioned within the housing (84) and a detonating cord (90) operably associated with the detonator (86). The perfo |
| 7303015 |
Cementitious compositions containing interground cement clinker and zeolite |
December 4, 2007 |
| Methods and compositions for wellbore treating fluids, especially cementitious compositions that include interground cement clinker and zeolite, with and without gypsum. |
| 7303014 |
Casing strings and methods of using such strings in subterranean cementing operations |
December 4, 2007 |
| Improved casing strings, and methods of using improved casing strings in subterranean cementing operations, are provided. An example of an apparatus is a pipe string comprising at least one pipe section and a delivery system of an activator. Another example of an apparatus is a pipe |
| 7303008 |
Methods and systems for reverse-circulation cementing in subterranean formations |
December 4, 2007 |
| Methods and systems for reverse-circulation cementing in subterranean formations are provided. An example of a method is a method of cementing casing in a subterranean well bore, comprising inserting a casing into the well bore, the casing comprising a casing shoe; equipping the casing |
| 7301473 |
Receiver for an acoustic telemetry system |
November 27, 2007 |
| One embodiment includes a method comprising receiving an acoustic signal that is propagated along a drill string. The method also includes correlating the acoustic signal to a first stored acoustic signal representing a first symbol, wherein the first stored acoustic signal is acquir |
| 7301472 |
Big bore transceiver |
November 27, 2007 |
| In a subterranean well completion a bi-directional signal transmission system includes an in-line acoustic transceiver mounted in a tubing string extending through the wellbore, the transceiver being disposed beneath a hanger structure engaging the tubing string. Via the tubing strin |
| 7301223 |
High temperature electronic devices |
November 27, 2007 |
| In at least some embodiments, electronic devices suitable for use at temperatures in excess of 200 C. may comprise an integrated circuit fabricated on a silicon carbide substrate, and a thick passivation layer. In other embodiments, electronic devices suitable for use at temperatures |
| 7299882 |
Annular isolators for expandable tubulars in wellbores |
November 27, 2007 |
| The present disclosure addressed apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. Annular seal means are carried in or on production tubing as it is run into a borehole. In conjunction with expansion of the tubing, the seal is |
| 7299878 |
High pressure multiple branch wellbore junction |
November 27, 2007 |
| A high pressure multiple branch wellbore junction. A wellbore junction system includes a wellbore junction with at least three bores extending therethrough. Exits of the three bores are axially spaced apart. At least two deflectors are formed on the wellbore junction. The deflectors are |
| 7299877 |
Methods for effecting controlled break in pH dependent foamed fracturing fluid |
November 27, 2007 |
| The invention provides a fluid for use in a subterranean formation penetrated by a wellbore, the fluid comprising: (a) water; (b) an orthoester; and (c) a surfactant comprising a tertiary alkyl amine ethoxylate generally represented by the following formula: ##STR00001## wherein R is |
| 7299876 |
Viscosified treatment fluids and associated methods of use |
November 27, 2007 |
| In one embodiment, provided is a method of fracturing a portion of a subterranean formation that comprises providing a viscosified treatment fluid comprising a single salt aqueous fluid having a density of greater than 9 pounds per gallon and a crosslinked viscosifying agent, and con |
| 7299875 |
Methods for controlling particulate migration |
November 27, 2007 |
| 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 fluid; contacting the po |
| 7299874 |
Viscoelastic surfactant fluids and associated methods |
November 27, 2007 |
| 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 a treatment fluid |
| 7299871 |
Sealing compositions and associated method of use |
November 27, 2007 |
| The present invention relates to sealing compositions and associated methods. In one embodiment, the present invention provides sealing compositions that comprise a viscous liquid polymer and a monomer comprising a vinyl monomer or an activated vinyl monomer. In other embodiments, th |
| 7299869 |
Carbon foam particulates and methods of using carbon foam particulates in subterranean applicati |
November 27, 2007 |
| 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 comprising providing |
| 7297665 |
Fluids comprising zirconium isopropylamine crosslinking agents and associated methods |
November 20, 2007 |
| Treatment fluids that may comprise an aqueous fluid, a gelling agent, and a zirconium triisopropylamine crosslinking agent are provided. Also provided are crosslinking agents that may comprise a zirconium triisopropylamine crosslinking agent, and a zirconium IV-containing crosslinkin |
| 7297664 |
Cement-free zeolite and fly ash settable fluids and methods therefor |
November 20, 2007 |
| Zeolite and Class F fly ash compositions are provided for use as cement-free settable fluids such as settable spotting fluids and cementitious compositions. |
| 7297208 |
Cement compositions comprising strength-enhancing lost circulation materials and methods of ceme |
November 20, 2007 |
| Cement compositions comprising a strength-enhancing lost circulation material, and methods for cementing using such cement compositions. Exemplary embodiments of the cement compositions comprise cement, water, and a strength-enhancing lost circulation material. Optionally, other addi |
| 7297207 |
Biodegradable dispersants for cement compositions and methods of cementing in subterranean forma |
November 20, 2007 |
| Hydraulic cement compositions are provided that include a cement, water; and a dispersant that comprises a low molecular weight starch with anionic groups. The starch dispersants provided may possess desirable biodegradable properties making them particularly suitable for certain dow |
| 7296927 |
Laboratory apparatus and method for evaluating cement performance for a wellbore |
November 20, 2007 |
| A test cell for testing a sample cement composition includes a test chamber and a variable stress system. The test chamber is configured to hold a sample cement composition for a wellbore. The variable stress system communicates with the test chamber. Performance of the sample cement |
| 7296626 |
Liquid additive for reducing water-soluble chromate |
November 20, 2007 |
| Methods for cementing and cement compositions are provided, wherein the cement composition comprises cementitious material and an aqueous suspension of zeolite and a chromate reducing agent. |
| 7296625 |
Methods of forming packs in a plurality of perforations in a casing of a wellbore |
November 20, 2007 |
| The invention provides a method of forming packs in a plurality of perforations in a casing of a wellbore, the method comprising the steps of: (a) forming a plug of a plugging particulate material in the wellbore of the casing, wherein the plug covers at least one perforation in the |
| 7296597 |
Methods for sealing and isolating pipelines |
November 20, 2007 |
| A method of performing a servicing operation within a pipeline comprises positioning a swellable component about at a desired location within a pipeline, exposing the swellable component to a swelling agent within the pipeline, expanding the swellable component into sealing engagement wi |
| 7296462 |
Multi-purpose downhole tool |
November 20, 2007 |
| A multi-purpose downhole tool comprising packers for isolating an interval of a downhole formation traversed by a borehole to form a packed-off interval annulus. The tool further comprises a reversible pump and more than one interval access port located between the packers. The ports |
