| Patent Number |
Title Of Patent |
Date Issued |
| 7294194 |
Emulsion admixtures for improving cement elasticity |
November 13, 2007 |
| Methods and cement compositions for sealing a subterranean zone penetrated by a wellbore. The cement compositions include cementitious material, a mixing fluid, at least one polar monomer, and at least one elasticity enhancing monomer. |
| 7293941 |
Methods for cementing using compositions containing salts |
November 13, 2007 |
| Disulfonate salts of 2,4-pentanedione and methods for making such salts are described. The disulfonate salts are useful as cement dispersants. Cement compositions including such salts, methods for making cement compositions including such salts, and methods for performing cementing o |
| 7293614 |
Multiple impact jar assembly and method |
November 13, 2007 |
| A hydraulic jarring tool may be suspended in a well from a wireline, tubular string or drill string, and may be activated to release a tool stuck in the well, or to release the drill string. Each of an upper and lower jarring section include a housing, a piston, a piston biasing memb |
| 7293611 |
CO.sub.2 miscible optimized hydrocarbon blends and methods of using CO.sub.2 miscible optimize |
November 13, 2007 |
| A method of treating a subterranean formation comprising the steps of providing a servicing fluid comprising carbon dioxide and a hydrocarbon blend, wherein the hydrocarbon blend comprises at least about 65% hydrocarbons having from six carbons (C.sub.6) to eleven carbons (C.sub.11); |
| 7293609 |
Treatment fluids comprising vitrified shale and methods of using such fluids in subterranean for |
November 13, 2007 |
| Methods and compositions for the treatment of subterranean formations, and more specifically, treatment fluids containing vitrified shale and methods of using these treatment fluids in subterranean formations, are provided. An example of a method is a method of displacing a fluid in a |
| 7290614 |
Methods for effecting controlled break in pH dependent foamed fracturing fluid |
November 6, 2007 |
| The invention provides a fluid for use in a subterranean formation penetrated by a wellbore, the fluid comprising: (a) water; (b) delayed release acid; (c) a surfactant comprising a tertiary alkyl amine etboxylate generally represented by the following formula: ##STR00001## wherein R |
| 7290613 |
Cement compositions comprising aromatic sulfonated polymers and methods of using the same |
November 6, 2007 |
| A method of servicing a wellbore that penetrates a subterranean formation includes displacing a cement composition comprising an aromatic sulfonated polymer into the wellbore and allowing the cement composition to set. In an embodiment, a transition time of the cement composition is |
| 7290612 |
Apparatus and method for reverse circulation cementing a casing in an open-hole wellbore |
November 6, 2007 |
| The present invention is directed to an apparatus and method for reverse circulation cementing a casing in an open-hole wellbore. The apparatus includes a surface pack-off device, which has a housing defined by an upper section and lower section. A load bearing plate is secured to the |
| 7290611 |
Methods and systems for cementing wells that lack surface casing |
November 6, 2007 |
| Methods and systems for cementing casing in well bores drilled in subterranean formations, and more particularly, methods and systems for cementing casing in a well bore without surface casing or a well head are provided. A method provided herein may comprise sealing an annulus at the |
| 7287603 |
Combined casing expansion/casing while drilling method and apparatus |
October 30, 2007 |
| A drilling assembly (2) comprises upper (4) and lower (6) drill strings with a fluid passage (80) therethrough for distributing fluid to a bottom hole assembly (10). The upper drill string (4) has an upper end (11) connectable to a drilling apparatus (13) and fluid source (16) and a |
| 7287594 |
Foamed treatment fluids and associated methods |
October 30, 2007 |
| Methods of treating subterranean formations using foamed treatment fluids comprising water, a gas, and a foaming and foam stabilizing surfactant mixture comprising a plurality of alkali salts of alkyl ether sulfates wherein the alkyl group in each of the alkyl ether sulfates has in the |
| 7287592 |
Limited entry multiple fracture and frac-pack placement in liner completions using liner fractur |
October 30, 2007 |
| The present invention is directed to a method and apparatus for fracturing a subterranean formation which use a liner fracturing tool. The liner fracturing tool consists of a liner, with at least one jet extending through the liner. During fracturing operations, fracturing fluid is p |
| 7287587 |
Crosslinkable polymer compositions and associated methods |
October 30, 2007 |
| Crosslinkable polymer compositions comprising an aqueous fluid; a water-soluble polymer comprising carbonyl groups; an organic crosslinking agent capable of crosslinking the water-soluble polymer comprising carbonyl groups; and a water-soluble carbonate retarder. Methods comprising: |
| 7287586 |
Compositions and methods for plugging and sealing a subterranean formation |
October 30, 2007 |
| The invention provides for a composition for treating a subterranean formation, the composition comprising a water-swellable agent and a sealing agent. Preferably, the water-swellable agent: i) absorbs greater than 100 weight % of water; and ii) swells to greater than 100 weight % as |
| 7285166 |
Zeolite-containing cement composition |
October 23, 2007 |
| Methods and cement compositions are provided for sealing a subterranean zone penetrated by a wellbore, wherein the cement composition comprises zeolite, cementitious material, and a mixing fluid. |
| 7285165 |
Cement compositions comprising set retarder compositions and associated methods |
October 23, 2007 |
| Cement compositions are provided that comprise a hydraulic cement, water, and a set retarder composition, the set retarder composition comprising an acrylamide polymer derivative; and an iron compound. In some embodiments, cement compositions are provided that comprise a hydraulic ce |
| 7285164 |
Fluid loss additives for cement slurries |
October 23, 2007 |
| Methods for cementing in a subterranean zone, which use a cement composition that includes zeolite, cementitious material, proportioned fluid loss control additives and a mixing fluid. Cement compositions containing proportioned fluid loss control additives, and methods of making cem |
| 7284898 |
System and method for mixing water and non-aqueous materials using measured water concentration |
October 23, 2007 |
| The present invention is directed to a system and method for mixing a fluid comprising water and at least one non-aqueous material. The system comprises a mixing tub and mixing head adapted to inject the fluid into the mixing tub. It also includes a plurality of lines connected to the |
| 7284611 |
Methods and compositions for controlling lost circulation in subterranean operations |
October 23, 2007 |
| A lost circulation composition, that comprises a first portion of particles having a weight mean particle size of less than about 20 microns, a second portion of particles having a weight mean particle size in the range of from about 25 microns to about 400 microns, and a third porti |
| 7284609 |
Methods of using settable spotting compositions comprising cement kiln dust |
October 23, 2007 |
| Exemplary embodiments include settable spotting compositions that comprise cement kiln dust and associated methods of use. Exemplary embodiments also include methods that comprise providing a settable spotting composition comprising cement kiln dust; introducing the settable spotting |
| 7284608 |
Casing strings and methods of using such strings in subterranean cementing operations |
October 23, 2007 |
| Improved casing strings, and methods of using improved casing strings in subterranean operations, are provided. An example of a method is a method of cementing a pipe string in a subterranean formation. Another example of a method is a method of cementing a pipe string in a well bore. An |
| 7281583 |
Self-dissolving lost circulation treatment for producing formations |
October 16, 2007 |
| Methods and compositions for sealing subterranean zones having temperatures in the range of about 80.degree. F. to about 300.degree. F. are provided. In a method of the invention, a sealing composition of the invention of water, a substantially fully hydrated depolymerized polymer an |
| 7281581 |
Methods of hydraulic fracturing and of propping fractures in subterranean formations |
October 16, 2007 |
| A method of propping at least one fracture in a subterranean formation, that comprises forming a plurality of proppant aggregates, each proppant aggregate comprising a binding fluid and a filler material, and introducing the plurality of proppant aggregates into the at least one frac |
| 7281580 |
High porosity fractures and methods of creating high porosity fractures |
October 16, 2007 |
| The present invention relates to high porosity propped fractures and methods of creating high porosity propped fractures in portions of subterranean formations. Another embodiment of the present invention provides a method of forming a high porosity propped fracture in a subterranean |
| 7281576 |
Apparatus and methods for sealing voids in a subterranean formation |
October 16, 2007 |
| Downhole tools that include an outer tubing disposed around an inner tubing for placement of a sealant mixture into a void in a subterranean formation and associated methods of use are provided. Furthermore, a method is provided for preparing a cement composition, which includes mixi |
| 7280987 |
Genetic algorithm based selection of neural network ensemble for processing well logging data |
October 9, 2007 |
| A system and method for generating a neural network ensemble. Conventional algorithms are used to train a number of neural networks having error diversity, for example by having a different number of hidden nodes in each network. A genetic algorithm having a multi-objective fitness f |
| 7278487 |
Methods of using chemical wash compositions for removing drilling fluids |
October 9, 2007 |
| Methods of removing a fluid from a well bore with a chemical wash composition, and more particularly, methods of using chemical wash compositions comprising water, a sulfonated lignin, and a taurate are provided. In one embodiment, a method of at least partially removing a fluid from |
| 7278486 |
Fracturing method providing simultaneous flow back |
October 9, 2007 |
| A bottom-up method of fracturing a multi-zone subterranean formation intersected by a wellbore that enables one zone to be fractured while at the same time flowing previously placed fracture fluid from one or more other zones back to the surface is provided. The method employs a bott |
| 7278485 |
Method of formulating and using a drilling mud with fragile gels |
October 9, 2007 |
| A method for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid is disclosed, as well as compositions for use in such method. The method employs a drilling fluid comprising a fragile gel or having fragile gel |
| 7278483 |
Methods of using cement compositions comprising phosphate compounds in subterranean formations |
October 9, 2007 |
| Methods of using cement compositions comprising phosphate compounds in subterranean formations are provided. An example of a method is a method of cementing in a subterranean formation. Other examples of methods include methods of avoiding the loss of circulation in a subterranean fo |
| 7276466 |
Compositions and methods for reducing the viscosity of a fluid |
October 2, 2007 |
| The present invention relates to improved methods and compositions for reducing the viscosity of subterranean servicing fluids where the servicing fluid has been cross-linked to increase its viscosity and that crosslinking can be reversed using a delayed release acid produced to redu |
| 7275598 |
Uncollapsed expandable wellbore junction |
October 2, 2007 |
| An uncollapsed expandable wellbore junction and associated methods. In a described embodiment, a method of creating an expanded pressure vessel in a subterranean well includes the step of expanding the pressure vessel in the well, thereby increasing a dimension of the vessel, without pri |
| 7273949 |
Salts and methods for their preparation |
September 25, 2007 |
| Disulfonate salts of 2,4-pentanedione and methods for making such salts are described. The disulfonate salts are useful as cement dispersants. Cement compositions including such salts, methods for making cement compositions including such salts, and methods for performing cementing o |
| 7273313 |
Mixing device for mixing bulk and liquid material |
September 25, 2007 |
| A mixing apparatus includes an outer housing, or pressurized chamber, and an inner housing rotatably disposed in the outer housing. A bulk material inlet is defined at the upper end of the inner housing. The outer housing has a liquid inlet for the introduction of liquid. The inner housi |
| 7273100 |
Biodegradable dispersants for cement compositions and methods of cementing in subterranean forma |
September 25, 2007 |
| Methods of cementing in a subterranean formation may include the steps of: providing a cement composition comprising a cement, water, and a dispersant comprising a low molecular weight starch that comprises anionic groups; placing the cement composition in the subterranean formation; |
| 7273099 |
Methods of stimulating a subterranean formation comprising multiple production intervals |
September 25, 2007 |
| A method of stimulating a production interval adjacent a well bore having a casing disposed therein, that comprises introducing a carrier fluid comprising first particulates into the well bore, packing the first particulates into a plurality of perforations in the casing, perforating |
| 7273097 |
Formation characterization using wellbore logging data |
September 25, 2007 |
| Methods for determining formation characteristics comprising establishing baseline casing conditions for a string of casing disposed within a wellbore in a formation and measuring updated casing conditions for the string of casing at a first time interval from the establishing of the |
| 7272973 |
Methods and systems for determining reservoir properties of subterranean formations |
September 25, 2007 |
| Methods and systems are provided for evaluating subsurface earth oil and gas formations. More particularly, methods and systems are provided for determining reservoir properties such as reservoir transmissibilities and average reservoir pressures of a formation layer or multiple layers u |
| 7271134 |
Water-based polymers for use as friction reducers in aqueous treatment fluids |
September 18, 2007 |
| Disclosed are methods comprising providing an aqueous polymer dispersion comprising water, an anionic salt, a water-based friction reducing polymer, a polyol, an anionic surfactant, and a nonionic surfactant; mixing the aqueous polymer dispersion with additional water to form an aque |
| 7271133 |
Methods and compositions for treating subterranean formations |
September 18, 2007 |
| Methods for treating subterranean formations and aqueous treating fluid compositions are provided. The aqueous treating fluid compositions comprise water, a water soluble hydrophobically modified gelling agent polymer produced by grafting a low concentration of hydrophobic monomers t |
| 7271132 |
Metallic soaps of modified fatty acids and rosin acids and methods of making and using same |
September 18, 2007 |
| A superior powder form of a metallic soap for enhancing the properties of an invert emulsion drilling fluid may be prepared by a dry process saponification reaction. The process includes mixing a source of metal cations with the product of a Diels-Alder reaction of dienophiles with f |
| 7270183 |
Cementing methods using compressible cement compositions |
September 18, 2007 |
| A method of cementing at least two casing strings in a well bore, the method having steps as follows: filling the well bore and the inner diameters of the at least two casing strings with a cement composition, wherein at least a portion of the cement composition is a compressible cem |
| 7270141 |
Methods and systems for controlling viscosity in real time |
September 18, 2007 |
| Systems and methods are disclosed for controlling a viscosity of a fluid. The control system includes a controller controlling an input to an actuator and an observer estimating the viscosity of the fluid. The controller includes an input, and the actuator is capable of controlling a |
| 7269514 |
System and method for correcting induction logging device measurements by alternately estimating |
September 11, 2007 |
| A method and related system for correcting measurements obtained from an induction logging device. In one embodiment, the method comprises: receiving conductivity measurements from a multi-array induction tool; constructing a measurement pattern vector from the conductivity measureme |
| 7268696 |
Directional signal and noise sensors for borehole electromagnetic telemetry system |
September 11, 2007 |
| An electromagnetic borehole telemetry system providing improved signal to noise ratio. Adaptive filters use noise channels as references to remove noise from the signal channel. Directional detectors provide a signal channel with reduced noise content and improved noise channels with |
| 7268101 |
Formate based liquid gel concentrates |
September 11, 2007 |
| A liquid gel concentrate for forming a high viscosity treating fluid is provided which can be premixed and stored before being used. The concentrate is comprised of an aqueous formate solution, at least one hydratable polymer which yields viscosity upon hydration and optionally an in |
| 7268019 |
Method and apparatus for high temperature operation of electronics |
September 11, 2007 |
| Embodiments of methods and apparatus for high temperature operation of electronics according to the invention are disclosed. One embodiment of the invention generally includes an integrated circuit package having a substrate. A plurality of integrated circuits are coupled to a surface of |
| 7267174 |
Methods of plugging a permeable zone downhole using a sealant composition comprising a crosslink |
September 11, 2007 |
| A method of servicing a wellbore, comprising preparing a sealant composition comprising a crosslinkable material, a crosslinking agent, a fluid loss control additive, and water, placing the sealant composition in a permeable zone in the wellbore, and allowing the sealant composition |
| 7267171 |
Methods and compositions for stabilizing the surface of a subterranean formation |
September 11, 2007 |
| Methods comprising providing a fracturing fluid comprising proppant particulates at least partially coated with a hardenable resin composition that comprises a hardenable resin component and a hardening agent component, wherein the hardenable resin component comprises a hardenable re |
| 7267170 |
Self-degrading fibers and associated methods of use and manufacture |
September 11, 2007 |
| Methods are provided including a method of treating a portion of a subterranean formation comprising: providing a treatment fluid comprising a plurality of self-degrading fibers, the self-degrading fibers comprising an outer shell and a core liquid; placing the treatment fluid into a |
