| Patent Number |
Title Of Patent |
Date Issued |
| 7213650 |
System and method for scale removal in oil and gas recovery operations |
May 8, 2007 |
| A system and method for stimulating a formation surrounding a well and vibrating a device for supporting a gravel pack in the well, according to which a build up of scale on the device is sensed and a corresponding signal is output. A driver is provided for driving a transducer coupled |
| 7213647 |
Methods of sealing expandable pipe in well bores and sealing compositions |
May 8, 2007 |
| The present invention provides methods and compressible foamed sealing compositions for sealing expandable pipe in well bores. The compressible sealant compositions for sealing expandable pipe are basically comprised of a hydraulic cement, a rubber latex, a rubber latex stabilizer, a gas |
| 7213645 |
Methods of improving well bore pressure containment integrity |
May 8, 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 |
| 7213643 |
Expanded liner system and method |
May 8, 2007 |
| A borehole may be drilled utilizing the bottom hole assembly 10, 50 with a downhole motor 14, which may offset at a selected bend angle. A gauge section 34 is secured to the bit 16 has a uniform diameter bearing surface along an axial length of at least 60% of the bit diameter. The a |
| 7212132 |
Downhole signal source |
May 1, 2007 |
| A signaling apparatus comprises a magnet and a shield moveable relative to the magnet. The shield is moveable relative to the magnet between a first position in which the magnet is relatively exposed and a second position in which the magnet is relatively shielded. The apparatus can incl |
| 7212075 |
Downhole clock having temperature compensation |
May 1, 2007 |
| A downhole crystal-based clock that is substantially insensitive to the factors that may cause frequency deviation as a result of downhole temperature. The clock may include a plurality of crystals, where a first crystal may be more stable, with respect to temperature, than a second |
| 7211547 |
Resin compositions and methods of using such resin compositions in subterranean applications |
May 1, 2007 |
| The present invention relates to curable, permeable resin compositions and methods of using such compositions. One embodiment of provides a method of creating a resin mass comprising the steps of combining a resin, a hardening agent, a hydrocarbon diluent, a silane coupling agent, a |
| 7210555 |
Low frequency acoustic attenuator for use in downhole applications |
May 1, 2007 |
| An acoustic attenuator includes a housing having an inner side surface which defines an interior chamber and at least one dampening member both physically and acoustically coupled to the housing and projecting into the interior chamber. Acoustic energy propagating within the housing is |
| 7210533 |
Disposable downhole tool with segmented compression element and method |
May 1, 2007 |
| A disposable downhole tool includes an elongated body and a compression element. The compression element is disposed about the elongated body. The compression element includes at least one preconfigured division at disposal of the disposable downhole tool. |
| 7209834 |
Method and apparatus for estimating distance to or from a geological target while drilling or lo |
April 24, 2007 |
| A system and method estimates the distance between a borehole and a subsurface boundary of interest in a geophysical region. In one embodiment, available existing sensor data for the geophysical region is used to create a resistivity model of the region, with the model reflecting cha |
| 7208845 |
Vibration based power generator |
April 24, 2007 |
| A vibration based power generator. In a described embodiment, an electrical power generating system includes a vibrating assembly including a vortex shedding device which sheds vortices in response to fluid flow across the vibrating assembly. A generator generates electrical power in |
| 7207387 |
Methods and compositions for use with spacer fluids used in subterranean well bores |
April 24, 2007 |
| The present invention relates to spacer fluids used in subterranean operations and, more particularly, to spacer fluids that comprise water-soluble relative permeability modifiers and methods of using the spacer fluids in subterranean operations. In one embodiment, the present invent |
| 7207215 |
System, method and apparatus for petrophysical and geophysical measurements at the drilling bit |
April 24, 2007 |
| Measurement of petrophysical and geophysical data of formations in a wellbore using a long gauge bit having at least one sensor therewith. The at least one sensor may be installed in at least one flute of the long gauge bit and/or in the long gauge portion thereof. Data for creating |
| 7205263 |
Recyclable foamed fracturing fluids and methods of using the same |
April 17, 2007 |
| Fracturing fluids and methods of fracturing a subterranean formation using such fluids are provided. A fracturing fluid having a first pH is foamed by introducing a gas to the fluid. The fracturing fluid comprises a surfactant that facilitates formation of the foam at the first pH. The |
| 7204324 |
Rotating systems associated with drill pipe |
April 17, 2007 |
| Methods and apparatuses for drilling a borehole are disclosed. An electric motor electrically and mechanically coupled to a wired drill pipe is provided. The electric motor couples to a shaft that rotates when power is supplied to the electric motor. The shaft is couplable to a drill bit |
| 7204316 |
Expandable well screen having temporary sealing substance |
April 17, 2007 |
| An expandable well screen having a temporary sealing substance. In a described embodiment, a method of installing a well screen in a subterranean well includes the steps of: providing the screen including a temporary sealing substance preventing fluid flow through a wall of the scree |
| 7204312 |
Compositions and methods for the delivery of chemical components in subterranean well bores |
April 17, 2007 |
| The present invention relates to the delivery of a plurality of chemical components in well bore applications. More particularly, this invention relates to delivery capsules and methods of using such delivery capsules for facilitating the delivery of at least a plurality of chemical |
| 7204311 |
Methods for controlling migration of particulates in a subterranean formation |
April 17, 2007 |
| Method of treating a portion of a subterranean formation comprising: placing a pre-pad fluid into a portion of a subterranean formation wherein the pre-pad fluid comprises a low-viscosity aqueous tackifying composition that comprises an aqueous tackifier compound and an aqueous fluid |
| 7204310 |
Methods of use settable drilling fluids comprising cement kiln dust |
April 17, 2007 |
| Settable drilling fluids comprising an aqueous-based drilling fluid and cement kiln dust. Methods of cementing in a subterranean formation comprising: providing a settable drilling fluid comprising an aqueous-based drilling fluid and cement kiln dust, introducing the settable drillin |
| 7204309 |
MWD formation tester |
April 17, 2007 |
| A formation testing tool is described herein, including a formation probe assembly having an extendable sampling probe surrounded by a cylindrical sleeve. The sleeve is configured to engage a metal skirt having an elastomeric seal pad coupled thereto. The skirt and seal are configured |
| 7204308 |
Borehole marking devices and methods |
April 17, 2007 |
| To reduce the surveying error in a wellbore, the creation of several reference points within a borehole is carried out by physically placing borehole markers in the borehole casing, the borehole wall or in the formation itself, and providing an accurate reference of the marker locati |
| 7204307 |
Methods of using settable compositions comprising cement kiln dust |
April 17, 2007 |
| The present invention provides settable compositions that comprise water and cement kiln dust. The settable compositions optionally may comprise an additive that comprises at least one of the following group: fly ash; shale; slag cement; zeolite; metakaolin; and combinations thereof. The |
| 7204304 |
Removable surface pack-off device for reverse cementing applications |
April 17, 2007 |
| A removable surface pack-off device adapted for use in reverse cementing applications is provided. The device includes a housing adapted to be mounted between the ends of an inner casing and an outer casing at or near the surface of a well and at least one fluid passage disposed within |
| 7201798 |
Set-delayed cement compositions comprising hydrated lime and silica and methods of cementing in |
April 10, 2007 |
| Cement compositions for use in subterranean formations are provided. An example of a cement composition is a cement composition comprising: water, a cementitious component consisting essentially of: hydrated lime, and silica; and a dispersant. Another example of a cement composition is |
| 7201230 |
Hydraulic control and actuation system for downhole tools |
April 10, 2007 |
| A hydraulic control and actuation system for downhole tools. In a described embodiment, a hydraulic control and actuation system includes an internal chamber serving as a low pressure region and a well annulus serving as an energy source. A valve assembly provides selective fluid com |
| 7201228 |
Freer flowing liquid-solid suspensions and methods of use in subterranean formations |
April 10, 2007 |
| The invention relates to methods for improving the suspension of solids in liquids; more particularly, to reducing the potential stresses caused by increased particle loading in a fluid. An example of a method is a method of enhancing the flow of particles. Another example of a method is |
| 7199580 |
System and methods for T.sub.1-based logging |
April 3, 2007 |
| System and methods for using nuclear magnetic resonance (NMR) T.sub.1 measurements for wireline, LWD and MWD applications and down-hole NMR fluid analyzers. The T.sub.1 measurements are characterized by insensitivity to motion, as the detrimental effects arising from tool motion or f |
| 7199480 |
Vibration based power generator |
April 3, 2007 |
| A vibration based power generator. In a described embodiment, an electrical power generating system includes a vibrating assembly which vibrates in response to fluid flow across the vibrating assembly. A generator generates electrical power in response to displacement of the vibratin |
| 7199086 |
Settable spotting compositions comprising cement kiln dust |
April 3, 2007 |
| Provided herein are settable spotting compositions that comprise cement kiln dust and associated methods of use. Also provided are methods that comprise providing a settable spotting composition comprising cement kiln dust; introducing the settable spotting composition into a well bore t |
| 7198681 |
Methods and compositions for removing resin coatings |
April 3, 2007 |
| The present invention relates to methods and compositions for removing resin coatings. More particularly, the present invention relates to methods and compositions for removing coatings comprising epoxy and/or furan. Some embodiments of the methods of the present invention comprise r |
| 7198110 |
Two slip retrievable packer for extreme duty |
April 3, 2007 |
| A packer includes one dual, or double acting, slip and a single acting slip positioned on a mandrel on opposite sides of a packing element and a setting cylinder. The single acting slip is designed to resist forces acting on the mandrel in one direction. Setting forces generated by the |
| 7198104 |
Subterranean fluids and methods of cementing in subterranean formations |
April 3, 2007 |
| Subterranean fluids, and more particularly, subterranean fluids comprising a hydraulic cement in an invert emulsion, and methods of using such fluids in subterranean operations, are provided. An example of these methods is a method of cementing a well bore. Another example of these m |
| 7197929 |
Motion-responsive coupled masses |
April 3, 2007 |
| In some embodiments, an apparatus and a system, as well as a method and an article, may include coupling a plurality of masses to provide a plurality of output signals responsive to motion relative to a common axis. Moving the plurality of masses at a substantially common frequency, |
| 7197923 |
Single phase fluid sampler systems and associated methods |
April 3, 2007 |
| A single phase fluid sampler system and associated methods. A fluid sampling method includes the steps of: receiving a fluid sample into a sample chamber of a fluid sampler; pressurizing the fluid sample using a pressure source; and increasing pressure in the pressure source while the |
| 7197398 |
Method for designing formation tester for well |
March 27, 2007 |
| A method for designing a closed-chamber drillstem test system. Parameters of available equipment and a well to be tested are collected. Initial or proposed chamber size and chamber pressurizing fluids are then selected. A simulation of a test is then performed. The simulation is performe |
| 7195731 |
Method for preparing and processing a sample for intensive analysis |
March 27, 2007 |
| This application relates to a method for pellerizing and taking intensive measurements of a raw sample. The method includes homogenizing and pelletizing the sample that is to be subjected to compositional or intensive analysis. The raw sample is mixed with several solutions containin |
| 7195083 |
Three dimensional steering system and method for steering bit to drill borehole |
March 27, 2007 |
| A steering assembly includes upper and lower tubular housings connected by a universal joint. An angle cam is disposed on the end of the lower housing and projects into the upper housing. A plurality of wedge members extend axially from the upper housing and into engagement with the angl |
| 7195075 |
Method for construction of low thermal expansion and low resistance wire for logging application |
March 27, 2007 |
| In some embodiments, a device includes a downhole tool comprising a wire comprising at least one strand comprising a low thermal expansion material. The low thermal expansion material may have a low electrical resistance material disposed thereon. |
| 7195071 |
Enzyme compositions and methods of using these compositions to degrade succinoglycan |
March 27, 2007 |
| This invention relates to enzyme compositions and methods of using these enzyme compositions, inter alia, to degrade succinoglycan. In one embodiment, the present invention provides a method of degrading succinoglycan comprising contacting the succinoglycan with an enzyme composition |
| 7195068 |
Filter cake degradation compositions and methods of use in subterranean operations |
March 27, 2007 |
| The present invention relates to methods and compositions for degrading filter cakes in subterranean formations, and more specifically, to improved methods and compositions for degrading filter cakes that comprise acid-soluble portions and polymeric portions. In one embodiment, the p |
| 7195067 |
Method and apparatus for well perforating |
March 27, 2007 |
| Apparatus for cutting openings in a wall of a well. The apparatus includes a mandrel with a jetting sleeve slidably disposed about the mandrel. The mandrel has a plurality of slots defined therein and the jetting sleeve has a plurality of jetting openings aligned with the slots so that f |
| 7192527 |
Processes for removing oil from solid wellbore materials and produced water |
March 20, 2007 |
| Processes for removing oil from a solid wellbore material such as drill cuttings or water such as produced by a subterranean formation include contacting the solid material/water with an amino-substituted polymer such as chitosan and a halogenating agent. The oil separates from the s |
| 7191852 |
Energy accelerator |
March 20, 2007 |
| An apparatus for imparting mechanical vibration on a down-hole drilling system including a body, first and second couplers and a rotating member. The body includes ports configured to pass fluid through the body, and the first and second couplers are configured to couple the body to the |
| 7191834 |
Foamed cement compositions and associated methods of use |
March 20, 2007 |
| A method of cementing in a subterranean formation that comprises providing a foamed cement composition that comprises water, a cement, a gas, and an additive, the additive comprising an anionic foaming agent and at least one of an anionic foam stabilizer or a Zwitterionic foam booster; p |
| 7191833 |
Sand control screen assembly having fluid loss control capability and method for use of same |
March 20, 2007 |
| A sand control screen assembly (60) that is positionable within a wellbore includes a base pipe (62) having at least one opening (64) that allows fluid flow therethrough and a filter medium (66) positioned exteriorly of the base pipe (62) that selectively allows fluid flow therethrough a |
| 7191832 |
Gravel pack completion with fiber optic monitoring |
March 20, 2007 |
| A gravel pack completion with fiber optic monitoring. In a described embodiment, a method for completing a subterranean well includes the steps of: positioning at least one assembly in a wellbore of the well; then inserting a portion of a tubular string into the assembly; and attachi |
| 7191830 |
Annular pressure relief collar |
March 20, 2007 |
| The present invention is an apparatus for relieving annular fluid pressure between nested casing strings. The invention includes a pressure relief collar formed of a cylindrical housing and a set of end connections disposed on opposite sides of the cylindrical housing. The end connec |
| 7191672 |
Single phase sampling apparatus and method |
March 20, 2007 |
| A single phase sampling apparatus and method for retrieving a formation fluid sample at or above the bubble point of the sample. The apparatus utilizes a gas charge contained between a sample piston and a charging piston to maintain a formation sample at the desired pressure. The cha |
| 7188689 |
Variable gauge drilling apparatus and method of assembly therefor |
March 13, 2007 |
| A variable gauge drilling apparatus and a method for assembling a variable gauge drilling apparatus for insertion in a subject borehole. The variable gauge drilling apparatus includes: an apparatus housing having a housing size which is suitable for insertion in a subject borehole which |
| 7187298 |
Methods and systems for transmitting and receiving a discrete multi-tone modulated signal in a f |
March 6, 2007 |
| Methods and systems for transmitting and receiving a discrete multi-tone (DMT) modulated signal in a fluid. Some illustrative embodiments may be a method comprising transforming an input data series into an information-carrying signal (the information-carrying signal carrying input d |
