| Patent Number |
Title Of Patent |
Date Issued |
| 7147057 |
Loop systems and methods of using the same for conveying and distributing thermal energy into a |
December 12, 2006 |
| Systems and methods are provided for treating a wellbore using a loop system to heat oil in a subterranean formation contacted by the wellbore. The loop system comprises a loop that conveys a fluid (e.g., steam) down the wellbore via a injection conduit and returns fluid (e.g., condensat |
| 7147056 |
Subterranean fluids and methods of using these fluids in subterranean formations |
December 12, 2006 |
| The present invention provides subterranean fluids comprising a hydraulic cement in an invert emulsion, and methods of using such fluids in subterranean well cementing operations. The fluids comprise a hydraulic cement and an invert emulsion of oil, water, and a surfactant. Optionall |
| 7147055 |
Cement compositions with improved corrosion resistance and methods of cementing in subterranean |
December 12, 2006 |
| The present invention relates to subterranean well cementing operations, and more particularly, to cement compositions having improved corrosion resistance and methods of using such compositions in subterranean formations. The cement compositions generally include an unhydrated cemen |
| 7144456 |
Cementing compositions and methods of cementing in a subterranean formation using an additive fo |
December 5, 2006 |
| Cementing compositions and methods of cementing in a subterranean formation are provided. The cement composition includes a hydraulic cement, lightweight beads, and a desegregating agent for inhibiting segregation of the beads. The lightweight beads may be, for example, cenospheres, |
| 7143832 |
Well packing |
December 5, 2006 |
| Annular packer (2) arranged on the outside of a production tubing (4) said packer comprises a core (12) comprising elastic polymer swelling by absorption of hydrocarbons. The core (12) may be surrounded by an external mantle of rubber (10), which is permeable to hydrocarbons and may |
| 7143828 |
Emulsion admixtures for improving cement elasticity |
December 5, 2006 |
| Methods and cement compositions for sealing a subterranean zone penetrated by a wellbore. The cement compositions include cementitious material, a polymer emulsion and a mixing fluid. The polymer emulsion includes at least one polar monomer and at least one elasticity enhancing monomer. |
| 7143827 |
Well completion spacer fluids containing fibers and methods |
December 5, 2006 |
| Well completion spacer fluids containing fibers and methods of using the spacer fluids are provided. A method of the invention for displacing a first fluid from a well bore with an incompatible second fluid comprises the following steps. A spacer fluid is placed between the first and |
| 7143826 |
Method for determining sand free production rate and simultaneously completing a borehole |
December 5, 2006 |
| The current invention provides methods for determining the sand production rate from unconsolidated and poorly consolidated subterranean formations under varying drawdown pressures. The current invention also allows for immediate production of fluid from the subterranean formation upon |
| 7140440 |
Fluid loss additives for cement slurries |
November 28, 2006 |
| 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 |
| 7140439 |
Zeolite-containing remedial compositions |
November 28, 2006 |
| Methods and compositions for wellbore treating fluids, especially remedial compositions such as pills, that include zeolite and at least one carrier fluid. |
| 7140438 |
Orthoester compositions and methods of use in subterranean applications |
November 28, 2006 |
| The present invention relates to methods and compositions for treating subterranean formations, and more specifically, to improved methods and compositions for generating acids for use downhole, for example, to at least partially degrade the acid-soluble portions of filter cakes depo |
| 7140437 |
Apparatus and method for monitoring a treatment process in a production interval |
November 28, 2006 |
| An apparatus (50) for monitoring a treatment process in a treatment interval (58) includes a packer assembly (60) and a sand control screen assembly (64) connected relative to the packer assembly (60). A cross-over assembly (62) provides lateral communication paths (92, 98) downhole |
| 7138803 |
Electromagnetic wave resistivity tool having a tilted antenna for geosteering within a desired p |
November 21, 2006 |
| 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 |
| 7138446 |
Elastomeric admixtures for improving cement elasticity |
November 21, 2006 |
| A method and cementing composition for sealing a subterranean zone penetrated by a well bore, wherein the cementing composition comprises a mixture of cementitious material, acrylonitrile butadiene styrene (ABS), and sufficient water to form a slurry. |
| 7137446 |
Fluids comprising reflective particles and methods of using the same to determine the size of a |
November 21, 2006 |
| In embodiments, methods of determining a size of an annulus in a wellbore include: (a) displacing a fluid comprising reflective particles downhole and up through the annulus, wherein the reflective particles make a front end of the fluid visible as it exits the wellbore; (b) determining |
| 7135862 |
NMR logging using time-domain averaging |
November 14, 2006 |
| Method for data acquisition and processing, which uses time-domain averaging to increase the signal to noise ratio (SNR) in single-event measurements. In a preferred embodiment, NMR echo-trains obtained using high-speed NMR logging are provided, the echo trains are time-domain averag |
| 7134497 |
Foamed treatment fluids and associated methods |
November 14, 2006 |
| Foamed treatment fluids comprising water, a gas, and a foaming and foam stabilizing surfactant mixture comprising an alkali salt of an alkyl ether sulfate, wherein the alkali salt of the alkyl ether sulfate comprises an alkali salt of a C.sub.6-10 alkyl ether sulfate, and an alkali s |
| 7133778 |
Methods for selecting a cementing composition for use |
November 7, 2006 |
| A method is provided for selecting a cementing composition for sealing a subterranean zone penetrated by a well bore. The method involves determining a group of effective cementing compositions from a group of cementing compositions given estimated conditions experienced during the l |
| 7132958 |
Downhole telemetry system using multiple uplink modes as data channels using discrete multi-tone |
November 7, 2006 |
| A method and a downhole telemetry system a downhole telemetry system using discrete multitone modulation for transmitting a data stream over a plurality of transmission modes is provided. The downhole telemetry system includes a downhole transmitter, a cable, and a surface receiver. |
| 7131493 |
Methods of using sealants in multilateral junctions |
November 7, 2006 |
| Methods for the completion of subterranean well bores in a multilateral well system are provided. More particularly, methods are provided for the sealing of junctions between lateral well bores and a parent well bore. The sealants used in accordance with the methods provided generally |
| 7131492 |
Divinyl sulfone crosslinking agents and methods of use in subterranean applications |
November 7, 2006 |
| This invention relates to divinyl sulfone crosslinking agents, viscosified treatment fluids, and methods of using these compositions in applications wherein viscosified treatment fluids may be used. In one embodiment, this invention provides a method of treating a portion of a subterrane |
| 7131491 |
Aqueous-based tackifier fluids and methods of use |
November 7, 2006 |
| The present invention relates to aqueous based tackifier fluids and their use in stabilizing particulates in propped fractures. Some embodiments of the present invention provide methods of creating a proppant pack in a subterranean formation, comprising introducing an aqueous servicing f |
| 7128158 |
Lightweight composite particulates and methods of using such particulates in subterranean applic |
October 31, 2006 |
| The present invention relates to lightweight composite particulates and their use in subterranean applications such as production enhancement and completion. One embodiment of the present invention provides a method of forming a lightweight particulate suitable for use as proppant or gra |
| 7128149 |
Apparatus and methods for improved fluid displacement in subterranean formations |
October 31, 2006 |
| Apparatus and methods for determining suitable displacement fluids for use in subterranean cementing operations, and methods of cementing that use such displacement fluids, are provided. Examples of methods include methods of water-wetting an annulus in a subterranean formation having an |
| 7128148 |
Well treatment fluid and methods for blocking permeability of a subterranean zone |
October 31, 2006 |
| The present invention provides a method and treatment fluid for blocking the permeability of an elevated-temperature zone in a reservoir of a subterranean formation penetrated by a wellbore, the method comprising the steps of: a) selecting the zone to be treated, wherein the upper li |
| 7128144 |
Formation testing and sampling apparatus and methods |
October 31, 2006 |
| Systems and methods for downhole formation testing based on the use of one or more elongated sealing pads capable off sealing off and collecting or injecting fluids from elongated portions along the surface of a borehole. The modified sealing pads increase the flow area by collecting flu |
| 7128142 |
Apparatus and methods for improved fluid displacement in subterranean formations |
October 31, 2006 |
| Apparatus and methods for determining suitable displacement fluids for use in subterranean cementing operations, and methods of cementing that use such displacement fluids, are provided. Examples of apparatus include apparatus for evaluating fluids. An example of a system is a system for |
| 7125826 |
Methods of using invertible oil external-water internal fluids in subterranean applications |
October 24, 2006 |
| Methods of using invertible oil external-water internal emulsions in drilling, hydraulic fracturing, gravel packing and completion and then inverting the emulsion to a water external-oil internal emulsion are provided. The methods basically comprise the steps of contacting the oil ex |
| 7125162 |
Gel hydration system |
October 24, 2006 |
| A hydration apparatus for use with a hydration tank. The hydration apparatus disperses incoming gel into existing gel in the hydration tank to increase the hydration time of the incoming gel. The hydration apparatus includes flow conduits communicated with gel inlets in the hydration |
| 7124822 |
Foamed completion fluids and methods |
October 24, 2006 |
| Foamed completion fluids and methods of completing subterranean zones penetrated by well bores are disclosed. A method of completing a subterranean zone penetrated by a well bore comprises the steps of providing or preparing a foamed completion fluid comprising water, one or more sal |
| 7124815 |
Tubing injector for variable diameter tubing |
October 24, 2006 |
| A tubing injector apparatus for use with variable diameter tubing. The apparatus comprises a pair of carriages which may be moved transversely and pivotally with respect to one another by actuating hydraulic actuator cylinders. A hydraulic control system uses relief valves to maintain a |
| 7121338 |
Probe isolation seal pad |
October 17, 2006 |
| A seal pad comprising a base plate and an expandable material engaged with the base plate. The expandable material comprises an outer surface where a portion of the outer surface is used to form a seal against a borehole wall. A portion of the outer surface of the expandable material is |
| 7117958 |
One-step directional coring or drilling system |
October 10, 2006 |
| An assembly for sidetracked drilling in a wall of a borehole previously drilled or cored in a formation includes a guide element and an expansible device fixed to the front end of the guide element operable to be selectively expanded by an actuation means. A sidetracking channel is f |
| 7117956 |
Pipe conveyed explosive with self contained actuation |
October 10, 2006 |
| A pipe conveyed charge system, for example a junk shot, having a self-contained activating charge which may be activated by mechanical force applied through the pipe. The initiating charge is pressure actuated, and fluid pressure in the pipe is used to fire the charge. The system inc |
| 7117943 |
Friction reducers for fluids comprising carbon dioxide and methods of using friction reducers in |
October 10, 2006 |
| Reduced friction fluids comprising an aqueous liquid, carbon dioxide, and a polymer comprising acrylamide and an acrylamide copolymer derivative. And methods of treating a subterranean formation comprising the steps of providing a reduced friction fluid comprising an aqueous liquid, carb |
| 7117942 |
Methods useful for controlling fluid loss during sand control operations |
October 10, 2006 |
| The present invention relates to methods useful during sand control operations and, more particularly, to using water-soluble relative permeability modifiers that are useful for controlling fluid loss during sand control operations. In one embodiment, the present invention provides a |
| 7117941 |
Variable diameter expansion tool and expansion methods |
October 10, 2006 |
| The present inventions relate to improved apparatus and methods for radially expanding tubulars, such as tubing, casing and sand-control screen assemblies in a subterranean oil or gas well, and more specifically, to a variable diameter expansion tool for expanding downhole tubulars t |
| 7117092 |
Pulsed-neutron formation density |
October 3, 2006 |
| A method and related system of determining formation density by compensating actual inelastic gamma rays detected from a pulsed-neutron tool for the effects of neutron transport. The method and systems may model response of the tool and use the modeled response as an indication of an |
| 7116182 |
Method and system for downhole clock having compensation |
October 3, 2006 |
| A downhole crystal-based clock that is substantially insensitive to the factors that cause frequency deviation. The clock may be maintained at a predetermined temperature using a temperature sensing device and a heating device, where the predetermined temperature corresponds to the t |
| 7114582 |
Method and apparatus for removing cuttings from a deviated wellbore |
October 3, 2006 |
| Apparatus and methods for diverting a portion of the drilling fluid that flows into a drilling assembly comprise diverting the drilling fluid into the annulus of a deviated wellbore at a flow rate corresponding to a velocity that is sufficient to transport cuttings to the surface while |
| 7114570 |
Methods and compositions for stabilizing unconsolidated subterranean formations |
October 3, 2006 |
| Methods of stabilizing subterranean formations and methods of reducing the production of particulates from subterranean formations are provided, which are useful in conjunction with subterranean formations surrounding wellbores and fractures. The methods comprise the steps of applying to |
| 7114569 |
Methods, cement compositions and suspending agents therefor |
October 3, 2006 |
| The present invention includes methods of cementing, cement compositions and a suspending agent comprising boron treated low molecular weight dry ground guar splits. A cement composition of the invention comprises hydraulic cement, water and a boron treated low molecular weight dry g |
| 7114568 |
Hydrophobically modified polymers for a well completion spacer fluid |
October 3, 2006 |
| A method and composition is provided for a relative permeability modifier for use with aqueous well treatment fluids that comprises a hydrophobically modified water soluble polymer or a hydrophilically modified water soluble polymer. |
| 7114560 |
Methods for enhancing treatment fluid placement in a subterranean formation |
October 3, 2006 |
| The present invention relates to methods for controlling the migration of unconsolidated particulates in a portion of a subterranean formation, and more particularly, to the using a pressure pulse to enhance the effectiveness of placement of a consolidation fluid in a portion of a su |
| 7112557 |
Electrically conductive oil-based mud |
September 26, 2006 |
| An electrically conductive oil mud meeting the fluid requirements for resistive logging tools and a method for preparing such mud is disclosed. The fluid has been optimized to deliver performance in a manner as similar to that of a traditional invert emulsion drilling fluid as is pra |
| 7111684 |
Subterranean fluids having improved environmental characteristics and methods of using these flu |
September 26, 2006 |
| 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 |
| 7108083 |
Apparatus and method for completing an interval of a wellbore while drilling |
September 19, 2006 |
| An apparatus and method for completing an interval of a wellbore while drilling comprises a drill string (52) having a drill bit (30) mounted on the lower end thereof. A completion assembly (50) is positioned around a section of the drill string (52) such that when the wellbore (32) is |
| 7108068 |
Floating plate back pressure valve assembly |
September 19, 2006 |
| A back pressure valve assembly for use in a well casing string. The valve assembly comprises a housing with a stationary and a floating plate therein. The floating plate is moveable between an open position spaced from the stationary plate and a closed position engaging the stationary |
| 7108066 |
Variable density treatment fluids and methods of using such fluids in subterranean formations |
September 19, 2006 |
| The present invention provides variable density fluid compositions and methods for using such compositions in a subterranean formation. One exemplary embodiment of the variable density fluid compositions of the present invention comprises a variable density fluid comprising: a base f |
| 7108062 |
Expandable well screen |
September 19, 2006 |
| An expandable well screen provides increased collapse, torsional and tensile strength. In a described embodiment, an expandable well screen includes a generally tubular base pipe and an external filtering media. The well screen is configured to have sufficient torsional and tensile s |
