| Patent Number |
Title Of Patent |
Date Issued |
| 7159656 |
Methods of reducing the permeabilities of horizontal well bore sections |
January 9, 2007 |
| Methods of temporarily reducing the permeability of one or more selected sections of a subterranean formation penetrated by a horizontal well bore and the flow of water or water and hydrocarbons or hydrocarbons therefrom are provided. The methods comprise the steps of preparing or provid |
| 7159468 |
Fiber optic differential pressure sensor |
January 9, 2007 |
| A fiber optic differential pressure sensor. In a described embodiment, a differential pressure sensor system for use in a subterranean well includes a fluid property sensing housing having a flow passage formed therethrough. A differential pressure sensor has an optical fiber extendi |
| 7158446 |
Directional acoustic telemetry receiver |
January 2, 2007 |
| Acoustic telemetry devices and methods that provide directional detection. In one embodiment, a disclosed acoustic telemetry device comprises at least two acoustic sensors and an electronics module. A first of the acoustic sensors detects a communication signal that propagates along a |
| 7156194 |
Methods of drilling and consolidating subterranean formation particulate |
January 2, 2007 |
| Improved methods for drilling well bores penetrating producing zones while controlling formation particulates are provided. Some embodiments provide methods of drilling a well bore into a subterranean formation comprising the steps of providing a drilling composition comprising a drillin |
| 7156175 |
Methods of generating gas in well fluids |
January 2, 2007 |
| The present invention relates to methods of chemically generating gas in aqueous fluids utilized in the drilling and completion of wells such as drilling fluids, spacer fluids, and aqueous acid solutions. In one embodiment, the invention provides a method of preventing the formation |
| 7156174 |
Contained micro-particles for use in well bore operations |
January 2, 2007 |
| The present invention relates to well bore operations, and more particularly, to contained micro-particles, and methods for using such contained micro-particles in cementing operations. An exemplary method of facilitating the use of micro-particles in a well bore fluid comprises the |
| 7156172 |
Method for accelerating oil well construction and production processes and heating device theref |
January 2, 2007 |
| Methods are described for providing localized heating in an oil well at precise depths to accomplish or expedite specific objectives. The methods involve the use of a heating tool which can be lowered into an oil well to apply heat at a precise depth to achieve a desired result. The |
| 7155990 |
Method and apparatus for determining a downhole fluid sample volume |
January 2, 2007 |
| A formation test tool 10 for obtaining a downhole fluid sample from a formation of interest 30 and returning the sample to the surface of a well includes a cylinder 12 forming a fluid sample chamber therein, and a piston 20 sealingly movable within the cylinder and separating the fluid |
| 7154412 |
High-power well logging method and apparatus |
December 26, 2006 |
| A power delivery system for a wireline tool includes two independent power transmission loops operating on a standard six-conductor cable. The two loops each connect directly to a respective terminals of a DC auxiliary power supply. Each loop also couples through a transformer to an AC |
| 7152688 |
Positioning tool with valved fluid diversion path and method |
December 26, 2006 |
| A positioning tool for moving an element in a flow path of a down hole system without actuating a pressure actuated device in the system. The positioning device includes a choke for restricting flow of fluid between the positioning device and the down hole system, a flow diversion path |
| 7152687 |
Expandable tubular with port valve |
December 26, 2006 |
| A ported expandable tubing having an outer valve sleeve which closes the ports upon tubing expansion. An elastomeric sealing member may be carried between the tubing and the valve sleeve to improve closing of the ports. The elastomeric sealing member may be shaped and positioned to opera |
| 7151077 |
Polymersome compositions and associated methods of use |
December 19, 2006 |
| The present invention relates to methods and compositions for treating subterranean formations. More particularly, the present invention relates to polymersomes, viscosifying agents that comprise polymersomes, and associated methods of use. In some embodiments, the present invention |
| 7150330 |
Hydraulic circuit and method for operating a gripping device |
December 19, 2006 |
| A hydraulic circuit and method for operating a gripping mechanism according to which fluid is passed from a source to the device while some of the fluid is passed to a valve that is adjustable to control the amount of fluid passed to it and therefore the amount of fluid passed to the |
| 7150327 |
Workover unit and method of utilizing same |
December 19, 2006 |
| According to one embodiment of the invention, a method for wellbore production enhancement includes determining a location of a tubing connector of a tubing string having a plurality of tube sections, translating one or more slips downward to hold a position of the tubing string, dis |
| 7150324 |
Method and apparatus for riserless drilling |
December 19, 2006 |
| An offshore riserless drilling system drills a subsea borehole from a platform and through a cased borehole. The system comprises a lightweight drill string suspending a bottomhole assembly and extending from the platform downwardly through a depth of water into the cased borehole; a |
| 7150322 |
Cement compositions comprising environmentally compatible defoamers and methods of use |
December 19, 2006 |
| Cement compositions including environmentally compatible defoamers and methods of using such cement compositions are provided herein. An example of a method is a method of cementing in a subterranean formation. Another example of a method is a method of reducing foam generation in a ceme |
| 7150321 |
Zeolite-containing settable spotting fluids |
December 19, 2006 |
| Methods and compositions for wellbore treating fluids, especially settable spotting fluids, that include zeolite and at least one carrier fluid. |
| 7150318 |
Apparatus for actuating a well tool and method for use of same |
December 19, 2006 |
| An apparatus (60) for actuating a well tool (148) in a wellbore includes a downhole robot (62) that provides for locomotion within the wellbore (144). A pressure control member (64) having a deployed position is operably associated with the downhole robot (62). An engagement mechanism |
| 7147705 |
Methods, cement compositions and oil suspensions of powder |
December 12, 2006 |
| Methods, cement compositions and oil suspensions of powders selected from the group consisting of micro-silica, silica flour, fine silica flour, silica sand, fine particle size cement, ultra-fine particle size cement, fly ash, slag, vitrified shale and zeolite. |
| 7147067 |
Zeolite-containing drilling fluids |
December 12, 2006 |
| Methods and compositions for wellbore treating fluids, especially drilling fluids, that comprise zeolite and a carrier fluid. |
| 7147066 |
Steerable drilling system and method |
December 12, 2006 |
| A bottom hole assembly 10 for drilling a deviated borehole includes a positive displacement motor (PDM) 12 or a rotary steerable device (RSD) 110 having a substantially uniform diameter motor housing outer surface without stabilizers extending radially therefrom. In a PDM application, |
| 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 |
