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| Application No. | Application Title | Issue Date |
| 20120067648 | INTELLIGENT WELLBORE PROPAGATION SYSTEM A technique utilizes a monolithic wellbore propagation system to facilitate the drilling of deviated wellbores. A steerable drilling assembly is formed with a monolithic structure having both a bit body section and a steering body section. The steering body section comp... | 03/22/2012 |
| 20120000709 | DIRECTIONAL DRILLING CONTROL USING PERIODIC PERTURBATION OF THE DRILL BIT Disclosed herein is a system for steering the direction of a borehole advanced by cutting action of a rotary drill bit by periodically varying action of a drill bit while continuously rotating a drill string to which the drill bit is operationally attached. The steering... | 01/05/2012 |
| 20110290561 | Downhole Hydraulic Jetting Assembly, and Method for Stimulating a Production Wellbore A method for forming lateral boreholes from an existing parent wellbore is provided. The wellbore has been completed with a string of production casing. The method generally comprises providing a downhole tool assembly having a whipstock. The method also includes runnin... | 12/01/2011 |
| 20110266062 | LATCHING CONFIGURATION FOR A MICROTUNNELING APPARATUS A drill rod is disclosed. The drill rod includes a casing assembly defining a length that extends axially between a first end and an opposite second end of the drill rod, and a drive shaft rotatably mounted within the casing assembly. The drive shaft extends axially alo... | 11/03/2011 |
| 20110203847 | Downhole Hydraulic Jetting Assembly, and Method for Stimulating a Production Wellbore A method for forming multiple lateral boreholes from an existing wellbore is provided. The wellbore has been completed with a string of production casing. The wellbore may have a slimhole region having an inner diameter that is less than the inner diameter of the produc... | 08/25/2011 |
| 20110139513 | ECCENTRIC STEERING DEVICE AND METHODS OF DIRECTIONAL DRILLING The present invention recites a method, system and apparatus for steering a drill string, wherein an eccentric steering device is recited. The eccentric steering device may comprise an eccentric sleeve configured for mounting exterior to a portion of the drill string an... | 06/16/2011 |
| 20110108327 | DIRECTIONAL DRILLING CONTROL USING PERIODIC PERTURBATION OF THE DRILL BIT Disclosed herein is a system for steering the direction of a borehole advanced by cutting action of a rotary drill bit by periodically varying action of a drill bit while continuously rotating a drill string to which the drill bit is operationally attached. The steering... | 05/12/2011 |
| 20100282517 | BORING SYSTEM The invention relates to a system for the overground operation of underground sewer tools, especially of expander and pulling heads comprising a rod assembly that is rigid when pushed and a supporting device absorbing shear or tractive forces.... | 11/11/2010 |
| 20100133012 | Apparatus and method for servicing a wellbore A wellbore servicing apparatus, comprising a first mandrel movable longitudinally along a central axis and rotatable about the central axis, an orienting member configured to selectively interfere with movement of the first mandrel along the central axis, and a second m... | 06/03/2010 |
| 20100032212 | Downhole adjustable bent-angle mechanism for use with a motor for directional drilling A housing including longitudinally extending tubular members interconnected to allow controlled relative bending thereof, during a drilling operation, a rotary drive transmitting torsion bar extending generally longitudinally within the housing to controllably bend in r... | 02/11/2010 |
| 20100012377 | System And Apparatus For Locating And Avoiding An Underground Obstacle A method and apparatus for detecting and avoiding an underground object during a horizontal directional drilling operation. The apparatus comprises a boring tool with a ground penetrating radar detection system. The boring tool is operatively connected to a drill string... | 01/21/2010 |
| 20090308659 | STEERING COMPONENT, STEERING ASSEMBLY AND METHOD OF STEERING A DRILL BIT IN A BOREHOLE This invention relates to a steering component, to a steering assembly, and to a method of steering a drill bit in a borehole. The steering component is adapted for connection to a drill string, the drill string carrying a drill bit and a motor for rotating the drill bi... | 12/17/2009 |
| 20090301779 | EARTH BORING DEVICE An earth boring device for forming horizontally extending bore holes beneath the surface of the earth and installing a conduit therein without substantially disturbing the surface of the earth is disclosed. The earth boring device is a generally elongate member having a... | 12/10/2009 |
| 20090288885 | ADJUSTABLE ANGLE DRIVE CONNECTION FOR A DOWNHOLE DRILLING MOTOR A drive connection for a downhole drilling motor includes a tubular outer housing with an inner mandrel. The outer housing has a motor end, a bit end and defines an interior bore. An angular offset is provided toward the bit end of the outer housing. The inner mandrel, ... | 11/26/2009 |
| 20090260884 | Steering Device for Downhole Tools An apparatus for drilling a wellbore may include a first section, a second section, and a third section, all of which are rotatably interconnected with pivot bearings and positioned along a drill string. The second section and the third section may be configured to form... | 10/22/2009 |
| 20090183921 | FLOW OPERATED ORIENTER Embodiments of the present invention generally relate to a flow operated orienter. In one embodiment, a bottom hole assembly (BHA) for use in drilling a wellbore includes: a first mud motor having a stator and a rotor; a second mud motor having stator and a rotor; a dri... | 07/23/2009 |
| 20090183917 | SYSTEM AND APPARATUS FOR LOCATING AND AVOIDING AN UNDERGROUND OBSTACLE A method and apparatus for detecting and avoiding an underground object during a horizontal directional drilling operation. The apparatus comprises a boring tool with a ground penetrating radar detection system. The boring tool is operatively connected to a drill string... | 07/23/2009 |
| 20090159339 | Adjustable bent housing apparatus and method An apparatus for controlling the direction of drill bit within a wellbore. The apparatus comprises a first housing with a first housing axis therein, and wherein the first housing has a first threaded opening having a first threaded opening axis. The first housing has a... | 06/25/2009 |
| 20090050375 | STEERABLE DRILL BIT ARRANGEMENT This invention relates to a steerable drill bit arrangement, in particular for the use in drilling boreholes for oil and gas extraction. There is provided a steerable drill bit arrangement in which the drill bit is connected to a drill string including a steering compon... | 02/26/2009 |
| 20090050370 | Steering Device For Downhole Tools An exemplary device carried on a rotating drill string includes an actuator that moves force application members and an associated controller. The force application members are actuated by an eccentricity between a force application members housing and the actuator. The... | 02/26/2009 |
| 20090000824 | Tools and technology of radical and level drilling/well completion under ultra-short radius The invention relates to a field of extracting petroleum, particularly to tools and technology of radical and level drilling/well completion under ultra-short radius. The tools of the invention are involved with a deflecting drill tool and level drill tool. The deflecti... | 01/01/2009 |
| 20080257606 | Flexible Drill Shaft A flexible drill shaft for drilling lateral boreholes comprising:
| 10/23/2008 |
| 20080099247 | Regulator Of Angle And Reactive Moment Of A Gerotor Type Motor Having A Spindle And Drilling Bit In A Bent Drilling String The invention relates to devices for drilling controlled directional wells. The inventive control device consists of a central hollow element and three hollow out-of-line with respect to each other tubular elements connected thereto. Said central element and the first e... | 05/01/2008 |
| 20080093124 | APPARATUS AND METHODS FOR DRILLING A WELLBORE USING CASING Apparatus and methods for drilling with casing. In an embodiment, methods and apparatus for deflecting casing using a diverter apparatus are disclosed. In another embodiment, the apparatus comprises a motor operating system disposed in a motor system housing, a shaft op... | 04/24/2008 |
| 20080023229 | TRI STABLE ACTUATOR APPARATUS AND METHOD An actuator to direct a downhole drilling tool includes a stator and an armature configured to be electromagnetically displaced into one of three stable positions. A cavity within the stator is in communication with a high-pressure fluid and hydraulic ports in the stato... | 01/31/2008 |
| 20070181343 | DIRECTIONAL DRILLING CONTROL Drilling means for directional drilling in a bore hole comprising a drill pipe and a drilling head, including a slippable clutch device linking the drill pipe and said drilling head such that torque due to rotation of said drill pipe can be controllably applied to said ... | 08/09/2007 |
| 20070095575 | ADJUSTABLE BENT HOUSING An adjustable bent housing (10) includes a first tubular body (12) and a second tubular body (14). The second tubular body (14) telescopically extends into the first tubular body (12) and is maintained in relative axial position by a t... | 05/03/2007 |
| 20060219440 | Slip grip drilling tool A directional drilling apparatus for mounting a drill bit on a rotatable drill support comprises a member for transmitting rotation from the drill support to a drill bit, and a body mounted to the member. The body is configurable to offset a portion of the member relati... | 10/05/2006 |
| 20060131078 | Mobile chemical preparation plant and method of managing a chemical inventory thereon A mobile chemical preparation plant and method of managing a chemical inventory is claimed. The mobile chemical preparation plant includes a mobile work area outfitted with a chemical compound preparation unit, a remote processing unit, and a global positioning system. ... | 06/22/2006 |
| 20050252687 | Method and device for directional down-hole drilling The invention concerns a method and a device for directional drilling of a hole, in particular when drilling curved holes for mining, drift mining or similar, whereby a drill support is used in the form of a flexible continuous drill tube with a proximal end and a dista... | 11/17/2005 |
| 20050029016 | Coupling for dual member pipe A coupling assembly to interconnect an inner member and an outer member of a dual member drill string in torque transmitting engagement is disclosed. The coupling assembly is adapted to transmit torque input from both members to a downhole tool. In one embodiment, the c... | 02/10/2005 |
