| Patent Number |
Title Of Patent |
Date Issued |
| 7181380 |
System and process for optimal selection of hydrocarbon well completion type and design |
February 20, 2007 |
| A process to determine optimal completion type and design prior to drilling of a hydrocarbon producing well utilizing information from hydrocarbon recovery modeling such as reservoir, geo-mechanical, and material modeling over the production life of the well. An embodiment of the pro |
| 7180825 |
Downhole telemetry system for wired tubing |
February 20, 2007 |
| A communications system employing discrete multi-tone ("DMT") modulated signals on a communications channel formed by inductively-coupled pipe. In one embodiment, the communications system includes a string of wired pipe joints that couple a transmitter to a receiver. Each pipe joint in |
| 7178610 |
Subterranean treatment fluids comprising polyoxazoline compositions and methods of use in subter |
February 20, 2007 |
| The present invention relates to subterranean treatment fluids. In particular, the present invention relates to subterranean treatment fluid compositions that comprise polyoxazoline compositions and methods for using such compositions in subterranean applications. In one embodiment, |
| 7178597 |
Cement compositions comprising high aspect ratio materials and methods of use in subterranean fo |
February 20, 2007 |
| The present invention relates to subterranean well cementing operations, and more particularly, to cement compositions that include high aspect ratio materials, and methods for using such cement compositions in subterranean formations. An example of a method of the present invention |
| 7178596 |
Methods for improving proppant pack permeability and fracture conductivity in a subterranean wel |
February 20, 2007 |
| The present invention provides compositions and methods for enhancing subterranean well productivity by enhancing fracture conductivity. A method of increasing the conductivity of a fracture in a portion of a subterranean formation comprising providing a slurry comprising a fracturin |
| 7178590 |
Well fluids and methods of use in subterranean formations |
February 20, 2007 |
| Improved well fluids that include hollow particles, and methods of using such improved well fluids in subterranean cementing operations are provided. Also provided are methods of cementing, methods of reducing annular pressure, and well fluid compositions. While the compositions and |
| 7176682 |
Method and apparatus for detecting hydrocarbons with NMR logs in wells drilled with oil-based mu |
February 13, 2007 |
| A method and system for estimating native hydrocarbons from oil-based drilling muds with the aid of NMR data. Adaptive echo stacking may be used to balance between precision and sensitivity to changes in the fluid composition. Apparent T.sub.2 decay time and effective diffusion const |
| 7174962 |
Methods of using lightweight settable compositions comprising cement kiln dust |
February 13, 2007 |
| Settable compositions that comprise water, CKD, and microspheres, wherein the lightweight settable composition has a density less than about 13 pounds per gallon. Methods of cementing that comprise providing a lightweight settable composition having a density less than about 13 pound |
| 7174961 |
Methods of cementing using cement compositions comprising basalt fibers |
February 13, 2007 |
| Methods of using cement compositions that comprise basalt fibers in subterranean formations are provided. An example of such a method may comprise providing a cement composition that comprises water, a hydraulic cement, and a plurality of basalt fibers; introducing the cement composi |
| 7174960 |
Method to depolymerize as well as derivatize a polysaccharide in a hydrocarbon slurry |
February 13, 2007 |
| Methods for preparing slurries that include depolymerized polysacoharides and depolymerized and derivatized polysaccharides that may be useful in subterranean well operations including fracturing, gravel packing, and frac-packing, are provided. One embodiment provides a method for making |
| 7173542 |
Data relay for casing mounted sensors, actuators and generators |
February 6, 2007 |
| A casing sensor and methods for sensing using a casing sensor are disclosed. The casing sensor includes a casing shoe and a sensor coupled to the casing shoe. A casing data relay includes a downhole receiver coupled to a well casing and a transmitter coupled to the receiver. The casi |
| 7172038 |
Well system |
February 6, 2007 |
| The drilling system includes a work string supporting a bottom hole assembly. The work string including lengths of pipe having a non-metallic portion. The work string preferably includes a composite coiled tubing having a fluid impermeable liner, multiple load carrying layers, and a |
| 7172023 |
Perforating gun assembly and method for enhancing perforation depth |
February 6, 2007 |
| A perforating gun assembly (110) for creating communication paths for fluid between a formation (114) and a cased wellbore (116) includes a housing, a detonator and a detonating cord (136). The perforating gun assembly (110) includes one or more substantially axially oriented collect |
| 7172022 |
Cement compositions containing degradable materials and methods of cementing in subterranean for |
February 6, 2007 |
| The present invention provides cement compositions that include degradable materials, and methods of using such compositions in subterranean cementing operations. An example of a method of the present invention includes: providing a cement composition that includes a hydraulic cement |
| 7168494 |
Dissolvable downhole tools |
January 30, 2007 |
| A disposable downhole tool comprises a material that dissolves when exposed to a chemical solution, an ultraviolet light, a nuclear source, or a combination thereof. In an embodiment, the material comprises an epoxy resin, a fiberglass, or a combination thereof. In another embodiment |
| 7168490 |
Optimized hydrocarbon blends and methods of using optimized hydrocarbon blends |
January 30, 2007 |
| The present invention relates to servicing fluids for use in subterranean operations. More particularly, the present invention relates to improved servicing fluids comprising optimized hydrocarbon blends and methods of using such servicing fluids in subterranean formations. One embodimen |
| 7168489 |
Orthoester compositions and methods for reducing the viscosified treatment fluids |
January 30, 2007 |
| In one embodiment, the present invention provides a method of reducing the viscosity of a viscosified treatment fluid comprising contacting the viscosified treatment fluid with an acid generated from an orthoester composition that comprises an orthoester. In another embodiment, the p |
| 7167101 |
Method and apparatus for telemetry |
January 23, 2007 |
| A method and related apparatus for telemetry between downhole devices and surface devices. In particular, the methods and related apparatus may send a first datum of a first parameter in an uncompressed form, and send a second datum of the first parameter in compressed form. |
| 7166160 |
Biodegradable cement retarder compositions and methods of cementing in a subterranean formation |
January 23, 2007 |
| The present invention is directed to hydraulic cement compositions comprising set-retarding additives and methods of retarding the set of a cement composition utilizing poly(amide) set-retarding additives and methods of cementing in subterranean zones utilizing a cement composition c |
| 7165892 |
Downhole fiber optic wet connect and gravel pack completion |
January 23, 2007 |
| A downhole fiber optic wet connect and gravel pack completion. In a described embodiment, a system for making fiber optic connections in a subterranean well includes a first fiber optic connector positioned in the well and a second fiber optic connector operatively connected to the f |
| 7165617 |
Viscosified treatment fluids and associated methods of use |
January 23, 2007 |
| In one embodiment, provided is a method of fracturing a portion of a subterranean formation that comprises providing a viscosified treatment fluid comprising a single salt aqueous fluid having a density of greater than 9 pounds per gallon and a crosslinked viscosifying agent, and con |
| 7165611 |
Single trip perforation/packing method |
January 23, 2007 |
| A method for performing single trip perforation and packing operations via a downhole assembly in a cased well bore is described. The assembly is provided with an upper packer and a lower packer and has fluid communication established therethrough. The upper packer of the assembly is |
| 7165608 |
Wellbore power generating system for downhole operation |
January 23, 2007 |
| A downhole tool (100) for wellbore operations comprises a substantially tubular member (130) that is operably positionable in the wellbore and a rotation member (110) that is rotatably disposed within the substantially tubular member (130). The rotation member (110) has a passageway (112 |
| 7163060 |
Difunctional phosphorus-based gelling agents and gelled nonaqueous treatment fluids and associat |
January 16, 2007 |
| The present invention provides methods of treating a portion of a subterranean formation, one of which includes: providing a gelled nonaqueous treatment fluid that comprises a nonaqueous base fluid and a difunctional gelling agent that comprises a polyvalent metal salt of a bisorgano |
| 7163056 |
Esterquat acidic subterranean treatment fluids and methods of using esterquats acidic subterrane |
January 16, 2007 |
| The present invention relates to acidic treatment fluids that comprise an acid fluid and an ester-containing quaternary ammonium compound ("esterquat") and methods of their use. One embodiment of the present invention provides a method of inhibiting metal corrosion during a subterran |
| 7159661 |
Multilateral completion system utilizing an alternate passage |
January 9, 2007 |
| A multilateral completion system utilizing an alternate passage. In a described embodiment, a wellbore junction includes a first passage extending from a first opposite end to a second opposite end of the wellbore junction. A window is formed through a sidewall of the wellbore juncti |
| 7159660 |
Hydrajet perforation and fracturing tool |
January 9, 2007 |
| Methods and apparatus for fracturing a subterranean formation which use a fracturing tool. The fracturing tool includes a hydrajet tool, with at least one fluid jet and at least one fracturing port extending through the liner. The fracturing tool further includes a rotating sleeve with a |
| 7159659 |
Viscoelastic surfactant fluids and associated acidizing methods |
January 9, 2007 |
| Provided are treatment fluids that comprise an aqueous base fluid, an acid, and a methyl ester sulfonate surfactant, and associated methods of use. In one embodiment, the present invention provides a method of acidizing a subterranean formation comprising: providing a treatment fluid |
| 7159658 |
Methods and compositions for treating subterranean zones |
January 9, 2007 |
| Methods and compositions for breaking treatment fluids utilized in the stimulation of a subterranean formation. |
| 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, |
