| Patent Number |
Title Of Patent |
Date Issued |
| 7267169 |
Methods for forming a permeable and stable mass in a subterranean formation |
September 11, 2007 |
| This invention relates to subterranean treatment operations. More particularly, this invention provides methods that may be useful in providing void-free barriers between a subterranean formation and a portion of a well bore. A nonlimiting example of a method is a method of degrading |
| 7265682 |
Joint source-channel coding for multicarrier modulation |
September 4, 2007 |
| Methods and systems employing combined source-channel coding for multi-carrier modulation (MCM). In some embodiments, a described method comprises: estimating channel gain to noise ratio (CGNR) as a function of frequency bin; determining MCM parameters that minimize distortion of one |
| 7265552 |
Electromagnetic wave resistivity tool having a tilted antenna for geosteering within a desired p |
September 4, 2007 |
| This invention is directed to a downhole method and apparatus for simultaneously determining the horizontal resistivity, vertical resistivity, and relative dip angle for anisotropic earth formations. The present invention accomplishes this objective by using an antenna configuration |
| 7264054 |
Fluids comprising zirconium isopropylamine crosslinking agents and associated methods |
September 4, 2007 |
| A method of treating a subterranean formation is provided, the method may comprise providing a fluid comprising an aqueous fluid, a gelling agent, and a zirconium triisopropylamine crosslinking agent; and introducing the fluid into a well bore that penetrates the subterranean formation. |
| 7264053 |
Methods of using wellbore servicing fluids comprising resilient material |
September 4, 2007 |
| A method of servicing a wellbore, comprising providing a wellbore fluid comprising a carrier fluid and a resilient material, and introducing the wellbore fluid to an annulus, wherein at least a portion of the resilient material reduces in volume to affect the annular pressure. |
| 7264052 |
Methods and compositions for consolidating proppant in fractures |
September 4, 2007 |
| Improved methods and compositions for consolidating proppant in subterranean fractures are provided. In certain embodiments, the hardenable resin compositions may be especially suited for consolidating proppant in subterranean fractures having temperatures above about 200.degree. F. |
| 7264051 |
Methods of using partitioned, coated particulates |
September 4, 2007 |
| Methods of treating a portion of a subterranean formation comprising: providing partitioned, coated particulates that comprise particulates, an adhesive substance, and a partitioning agent, and wherein the adhesive substance comprises an aqueous tackifying agent or a silyl modified p |
| 7264047 |
Annular isolators for expandable tubulars in wellbores |
September 4, 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 |
| 7262154 |
Methods and compositions for breaking viscosified fluids |
August 28, 2007 |
| Improved methods for treating and for fracturing subterranean formations and the fluid compositions are provided. The viscosity of a treating fluid containing gelling agents is broken, even at temperatures of about 250.degree. F. and lower, utilizing an oxidizing breaker and a reducing |
| 7261168 |
Methods and apparatus for using formation property data |
August 28, 2007 |
| This application relates to various methods and apparatus for rapidly obtaining accurate formation property data from a drilled earthen borehole. Once obtained, the formation property data, including formation fluid pressure, may be corrected, calibrated and supplemented using variou |
| 7261167 |
Method and system for predicting performance of a drilling system for a given formation |
August 28, 2007 |
| A method and apparatus for predicting the performance of a drilling system for the drilling of a well bore in a given formation is disclosed. The method generates a geology model of a given formation. The geology model includes a geology characteristic of the given formation per unit dep |
| 7261160 |
Methods and compositions for controlling the viscosity of viscoelastic surfactant fluids |
August 28, 2007 |
| Viscoelastic surfactant fluids, and methods of using such fluids and controlling the viscosity thereof. In one embodiment, the methods of the present invention comprise: providing a viscoelastic surfactant fluid that comprises an aqueous-base fluid, and a surfactant; providing a metal |
| 7261158 |
Coarse-foamed fracturing fluids and associated methods |
August 28, 2007 |
| A method of fracturing a subterranean formation comprising the steps of: providing a coarse-foamed fracturing fluid comprising a liquid fracturing fluid component, a gas, proppant particulates, and a foaming agent; and placing the coarse-foamed fracturing fluid into a portion of a su |
| 7261157 |
Methods of controlling particulate segregation in slurries |
August 28, 2007 |
| Methods for controlling particulate segregation comprising providing a mixture of an aqueous tackifying composition with a treatment fluid; slurrying the mixture with a first type of solid particulates and a second type of solid particulates and wherein the first type of solid partic |
| 7261156 |
Methods using particulates coated with treatment chemical partitioning agents |
August 28, 2007 |
| Methods of treating a portion of a subterranean formation comprising: providing partitioned, coated particulates that comprise particulates, an adhesive substance, and a partitioning agent, and wherein the partitioning agent comprises a subterranean treatment chemical; substantially |
| 7260985 |
Formation tester tool assembly and methods of use |
August 28, 2007 |
| A downhole, extendable testing apparatus and methods of use are described and claimed herein. In one embodiment, an extendable sample device is connected to a draw down piston assembly. A position indicator may be used to show the position of the draw down piston during movement, and |
| 7259130 |
Set-on demand, ester-based wellbore fluids and methods of using the same |
August 21, 2007 |
| Methods of servicing a wellbore in contact with a subterranean formation include passing an ester-based fluid into the wellbore and reducing a temperature of the ester-based fluid by an amount effective to cause the ester-based fluid to set, e.g., by from about 10.degree. F. to about |
| 7258738 |
Cementing compositions including salts |
August 21, 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 |
| 7258170 |
Methods for remediating subterranean formations |
August 21, 2007 |
| Methods of increasing the permeability of a portion of a subterranean formation may comprise providing a remediation fluid capable of decreasing the tackiness of a tackifying agent, the remediation fluid comprising a surfactant; introducing the remediation fluid into the portion of t |
| 7258169 |
Methods of heating energy storage devices that power downhole tools |
August 21, 2007 |
| An energy storage device for powering a downhole tool may be heated to an effective temperature to improve the operability of the energy storage device. The energy storage device may comprise, for example, a primary battery, a secondary battery, a fuel cell, a capacitor, or combinations |
| 7255739 |
Cement compositions with improved corrosion resistance and methods of cementing in subterranean |
August 14, 2007 |
| This invention provides cement compositions that comprise a high alumina cement, vitrified shale, a soluble phosphate, and water sufficient to form a slurry. This invention also presents methods of enhancing the corrosion resistance of a cement composition that comprise the step of a |
| 7255170 |
Foamed cement compositions, additives, and associated methods |
August 14, 2007 |
| Exemplary embodiments relate to cementing operations and, more particularly, to foamed cement compositions, foaming and stabilizing additives, and associated methods. A foaming and stabilizing additive, that comprises a mixture of an alkali salt of an alkyl ether sulfate surfactant, |
| 7255169 |
Methods of creating high porosity propped fractures |
August 14, 2007 |
| Methods of forming a high porosity propped fracture comprising: providing a slurry comprising a fracturing fluid, proppant particulates, and a weighting agent; introducing the slurry into a portion of a fracture within the subterranean formation; and, depositing the proppant particul |
| 7255168 |
Lightweight composite particulates and methods of using such particulates in subterranean applic |
August 14, 2007 |
| Lightweight composite particulates and their use in subterranean applications such as production enhancement and completion are provided. In one embodiment a method of forming a lightweight particulate suitable for use as proppant or gravel in a subterranean operation comprising the |
| 7255162 |
Methods and apparatus for use in subterranean cementing operations |
August 14, 2007 |
| The present invention relates to subterranean cementing operations, and more particularly to an apparatus useful in loading cementing plugs and darts into tubulars, and methods of using such apparatus in subterranean cementing operations. An example of a method of the present invention i |
| 7252437 |
Fiber optic wet connector acceleration protection and tolerance compliance |
August 7, 2007 |
| Fiber optic wet connector acceleration protection and tolerance compliance. In a described embodiment, a fiber optic connection system for use in a subterranean well includes two assemblies, each having a fiber optic connector. A biasing device applies a biasing force which maintains |
| 7252153 |
Bi-directional fluid loss device and method |
August 7, 2007 |
| A fluid loss device including a flapper and seat assembly that provide a seal on a lower flapper surface when the flapper is closed and resists pressure in either direction. The flapper and seat assembly is spring biased to contact a flapper support above the flapper to resist deform |
| 7252149 |
Safety valve lock out system and method |
August 7, 2007 |
| A safety valve lock out system and method. In a described embodiment, a method of locking out a safety valve in a subterranean well includes the steps of: flowing a hardenable fluid into the safety valve; and preventing a closure device of the safety valve from closing with the harde |
| 7252147 |
Cementing methods and systems for initiating fluid flow with reduced pumping pressure |
August 7, 2007 |
| A method of initiating fluid circulation in a well bore through a casing inner diameter and an annulus outside the casing, the method having the following steps: inducing an increase in the annulus fluid pressure; flowing cement composition into the annulus at the top of the well bore; |
| 7252146 |
Methods for preparing slurries of coated particulates |
August 7, 2007 |
| Methods are provided that include a method of creating a stable slurry of coated particulates wherein the slurry is capable of being stored for at least 2 hours before use comprising the steps of: providing resin coated particulates wherein the resin comprises a resin that does not compl |
| 7252142 |
Annular isolators for expandable tubulars in wellbores |
August 7, 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 |
| 7251565 |
Determining fluid composition from fluid properties |
July 31, 2007 |
| A method for determining the composition of a fluid by using measured properties of the fluid. One embodiment of the method of the current invention generally comprises: selecting a fluid property that has a response to fluid composition that is linear, or can be approximated as line |
| 7249635 |
Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valve |
July 31, 2007 |
| A communication tool (100) includes a housing (102) having recesses (110) and a set of axial locating elements (112) radially extendable through the recesses (110) and engagably positionable within a profile of a tubing retrievable safety valve (50). An anti rotation device (140) is |
| 7246940 |
Method and apparatus for managing the temperature of thermal components |
July 24, 2007 |
| A temperature management system for managing the temperature of a discrete, thermal component. The temperature management system comprises a heat exchanger thermally coupled with the thermal component. The system also comprises a fluid transfer device that circulates a coolant fluid |
| 7246663 |
Positive engagement indicator for wireline fishing operations |
July 24, 2007 |
| A device and method for retrieving a tool string from downhole locations through the use of one or more engagement sensors. The one or more engagement sensors are activated by the tool string engaging an overshot device. The one or more engagement sensor may be mechanical, electric, or |
| 7246660 |
Borehole discontinuities for enhanced power generation |
July 24, 2007 |
| An enhanced electrical power generating system. In a described embodiment, an electrical power generating system for use in a subterranean well includes a flow passage formed through a tubular string in the well, a flow region in communication with, and laterally offset relative to, the |
| 7246659 |
Damping fluid pressure waves in a subterranean well |
July 24, 2007 |
| A system and method of damping fluid pressure waves in a subterranean well. In a described embodiment, pressure waves are damped by positioning a dampener in the well during a perforating operation. The dampener may attenuate the pressure waves by absorbing the pressure waves, flowing th |
| 7244363 |
Methods for treating heavy halide brines with permanganates |
July 17, 2007 |
| The present invention relates to the use of permanganate in the removal of heavy metal contaminants from heavy halide brines. In some embodiments, the present invention discloses methods of treating heavy halide brines that comprise providing a heavy halide brine that comprises a heavy m |
| 7244303 |
Set retarder compositions, cement compositions, and associated methods |
July 17, 2007 |
| Cement compositions, that comprise water, a cement, a strength-retrogression additive, and an acid, wherein the acid comprises ethylenediamine tetra acetic acid, nitrilotriacetic acid, or a combination thereof, are provided. Methods of cementing in a subterranean formation, methods o |
| 7243725 |
Surge chamber assembly and method for perforating in dynamic underbalanced conditions |
July 17, 2007 |
| A surge chamber assembly (70) for use in a wellbore includes a housing (80) having one or more openings (112), a surge chamber (100) and a combustion chamber (98). The openings (112) provide fluid communication between the exterior (82) of the housing (80) and the surge chamber (100) |
| 7243724 |
Apparatus and method for treating an interval of a wellbore |
July 17, 2007 |
| An apparatus (110) and method for treating an interval of a wellbore comprises an outer tubular (112) disposed within the wellbore. A sand control screen (118) is disposed within the outer tubular (112). A treatment fluid passageway (144) is formed between the sand control screen (11 |
| 7243723 |
System and method for fracturing and gravel packing a borehole |
July 17, 2007 |
| A system and method for fracturing an earth formation surrounding a borehole includes an elongate conduit positioned in the borehole. A packer assembly is provided about the conduit and is adapted to seal an annulus between the conduit and the borehole. A packing passage is provided |
| 7243537 |
Methods for measuring a formation supercharge pressure |
July 17, 2007 |
| A method of determining the supercharge pressure in a formation intersected by a borehole having a wall, the method comprising disposing a formation pressure test tool into the borehole having a probe for isolating a portion of the borehole. The method further comprises extending the |
| 7240734 |
System and method for fail-safe disconnect from a subsea well |
July 10, 2007 |
| A system and method for controllably separating a conduit into an upper portion and a lower portion. The system includes a first valve in the upper portion of the conduit above a point of separation, and a second valve in the lower portion of the conduit below the point of separation. |
| 7240732 |
Dispersant compositions for cement compositions and related methods |
July 10, 2007 |
| The present invention relates to cementing operations, and more particularly to improved cement dispersants for cement compositions and methods of cementing. In one embodiment, the present invention provides a method of cementing comprising the steps of: providing a cement compositio |
| 7239098 |
Digital adaptive sensorless commutational drive controller for a brushless DC motor |
July 3, 2007 |
| Various embodiments of an electrical motor, a brushless DC motor controller, and applications thereof. In one embodiment, a fluid-moving device is provided with a brushless DC motor and a motor controller. The controller may include a set of comparators and a clocked digital circuit. |
| 7238646 |
Invertible well bore servicing fluid |
July 3, 2007 |
| A method for using an invert emulsion fluid in a well bore, comprising placing an invert emulsion fluid in a well bore, wherein the invert emulsion fluid comprises an oleaginous fluid, a non-oleaginous fluid and an emulsifier comprising one or more amines generally represented by the |
| 7238229 |
Methods and compositions for cementing in well bores |
July 3, 2007 |
| Methods of cementing in well bores using cement compositions having elasticity or high compressive strength and low permeability are provided. The cement compositions basically include particulate acid-degradable glass, water, at least one water-soluble polymerizable alkenoic acid mo |
| 7237809 |
Coiled tubing connector |
July 3, 2007 |
| A tubing connector comprising a rigid member having a first end and a second end; a crimping groove disposed about the rigid member; and a sleeve fixably attached to the rigid member and covering the crimping groove. A method for connecting a tubing section to a rigid member, the met |
| 7237612 |
Methods of initiating a fracture tip screenout |
July 3, 2007 |
| Methods of initiating a fracture tip screenout, that comprise pumping an annulus fluid into an annulus, between the subterranean formation and a work string disposed within a wellbore penetrating the subterranean formation, at an annulus flow rate; and reducing the annulus flow rate |
