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Match Document Document Title
US20110266062 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...
US20090183921 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...
US20100032212 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...
US20110290561 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...
US20090000824 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...
US20090301779 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...
US20080257606 Flexible Drill Shaft  
A flexible drill shaft for drilling lateral boreholes comprising: a helical outer wire coil spring; andat least one inner helical wire coil spring residing concentrically within the outer coil...
US20120255780 METHOD AND APPARATUS FOR CALCULATING AND CORRECTING FOR DIRECTIONAL DRILLING TOOL FACE OFFSETS  
A method for correcting for tool face offset in directional drilling components, namely between a directional sensor reference point and a high side of a bent sub. Graduated markings applied on an...
US20120285746 Device for directional drilling  
A drill string section for directional drilling includes an outer casing which encases an adjustment mechanism for adjusting drilling direction and angular deflection during drilling. The...
US20090288885 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...
US20130000984 ADJUSTABLE ROTARY STEERABLE SYSTEM  
A technique facilitates the drilling of deviated wellbores. A steerable drilling system is formed with a pair of components pivotably mounted with respect to each other. A removable strike ring is...
US20130319764 DRILLING SYSTEM, BIASING MECHANISM AND METHOD FOR DIRECTIONALLY DRILLING A BOREHOLE  
A drilling system for directional drilling of a borehole includes a biasing mechanism having a pivot associated with a lower bearing assembly, an offset mechanism associated with an upper radial...
US20100282517 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...
US20070095575 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...
US20150144401 HYDRAULICALLY ACTUATED TOOL WITH ELECTRICAL THROUGHBORE  
A bottom hole assembly includes a drill string, a bit coupled to an end of the drill string, a rotary steerable system coupled to the drill string above the bit, a hydraulically actuated tool...
US20130228379 CONTINUOUS ROTARY DRILLING SYSTEM AND METHOD OF USE  
A drilling system has a drill string that is made up of tubular segments of coiled tubing joined together by connectors. The connectors can be selectively changed between locked and unlocked...
US20090308659 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,...
US20090159339 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...
US20090260884 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...
US20120145462 System and Method for Directional Drilling  
A system and method facilitate directional drilling. The technique employs an orienting tool which may be connected into a coiled tubing drilling system to selectively orient a drilling assembly....
US20140251695 Adjustable Bend Assembly for a Downhole Motor  
A downhole motor for directional drilling includes a driveshaft assembly including a driveshaft housing and a driveshaft rotatably disposed within the driveshaft housing. In addition, the downhole...
US20150226020 Articulating Component of a Downhole Assembly, Downhole Steering Assembly, and Method of Operating a Downhole Tool  
This invention relates to an articulating component (16) of a downhole assembly, and to a downhole steering assembly. There is provided an articulating component (16) having a first end (40) and a...
US20110139513 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...
US20080023229 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...
US20110203847 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...
US20100012377 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...
US20150226005 Drill with Integrally Formed Bent Sub and Sonde Housing  
A fluid-actuated directional percussive impact tool includes a back head for connection to a pressurized fluid source and a tool casing housing a drill bit longitudinally movable with respect...
US20150122548 METHOD AND SYSTEM FOR DIRECTIONAL DRILLING AND COUPLING SUB  
The present invention provides a system and method for directional drilling of a borehole in a formation along a predetermined trajectory. The method comprising the steps of: providing a...
US20130168152 Apparatus for Directional Drilling  
A downhole drilling apparatus includes an assembly having a longitudinal axis, wherein an output shaft of the assembly extends axially through a housing. A bearing assembly has first and second...
US20120000709 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...
US20110108327 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...
US20140158427 Directional Drilling Tool  
A directional drilling tool is provided, which comprises a first end (2) attachable to a drill string, and a second end (4) attachable to a drill bit. A swivel section (6) is provided intermediate...
US20140231136 APPARATUS AND METHOD FOR ROTARY STEERING  
A method and system for steering a rotary steerable tool in a borehole. A method includes rotating a deflection sleeve about a steerable shaft. A deflection ramp is aligned to deflect the shaft in...
US20090050370 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...
US20100133012 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...
US20140083777 ROTARY STEERABLE TOOL  
A rotary steerable tool has an inner mandrel having a longitudinal axis and an outer housing positioned along the inner mandrel. The outer housing rotates independently of the inner mandrel. The...
US20130037327 Steering Component, Steering Assembly and Method of Steering A Drill Bit In A Borehore  
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,...
US20170002610 Steerable Earth Boring Assembly Having Flow Tube with Static Seal  
A steerable earth boring assembly which includes an annular collar and a drive shaft with a drill bit, where the shaft pivots with respect to the collar. An upstream portion of the shaft inserts...
US20160237762 Adjustable Straight Blade Stabilizer  
A drill string stabilizer has an elongated cavity formed in an exterior surface of the body. An elongated blade is generally disposed to extend from the cavity. The blade is extended or retracted...
US20160237749 ADJUSTABLE BEND ASSEMBLY FOR A DOWNHOLE MOTOR  
A downhole motor for directional drilling includes a driveshaft assembly including a driveshaft housing and a driveshaft rotatably disposed within the driveshaft housing. In addition, the downhole...
US20160201405 ACTIVE STABILIZATION  
Active stabilization is provided. In one possible implementation a drilling tool associated with a drill bit includes one or more rotation alteration devices configured to alter a rotational...
US20160168914 GAUGE FOR BENT HOUSING MOTOR DRILL BIT  
A drilling assembly comprises a bit body having a central axis and a blade extending radially outward from the bit body. The blade is defined by a leading edge and a trailing edge. A gauge surface...
US20160145942 ARRANGEMENT AND DOWN-THE-HOLE DRILLING EQUIPMENT FOR ANGULAR SETTING OF A DRILL STRING  
An arrangement for the angular setting of a drill string includes a first tubular member, a second tubular member, a plurality of control and actuator devices that can be shortened and lengthened...
US20160123083 Downhole Adjustable Bent Motor  
A bent sub for use in a bottom hole assembly, between the power section of a mud motor and the drill bit, which can have its bend angle altered from the surface while remaining downhole, and a...
US20160108679 Pad in Bit Articulated Rotary Steerable System  
A rotary steerable system (RSS) including an upper stabilizer connected to a collar of a drill string, an articulated section connected by a flexible joint to the collar, a drill bit connected to...
US20160102501 STEERING ASSEMBLY FOR DIRECTIONAL DRILLING OF A WELLBORE  
A steering assembly includes a housing having a longitudinal axis, a mandrel having a front connecting extremity and a rear connecting extremity, the mandrel passing through the housing and...
US20160060960 Downhole Steering System  
A technique facilitates drilling of deviated boreholes. The technique employs a drilling system which may be disposed along a drill string. The drilling system may be used to drill a straight...
US20160060959 DRILLING SYSTEM WITH ADAPTIVE STEERING PAD ACTUATION  
A bottomhole assembly (BHA) has a first section, a second section, and a drilling motor disposed along the second BHA section. The first BHA section is connected to the second BHA section with a...
US20160053543 STEERING TOOL WITH ECCENTRIC SLEEVE AND METHOD OF USE  
A method for steering a well comprises disposing a first orienting assembly and a second orienting assembly spaced apart along a circular inner peripheral surface of a housing. An orienting sleeve...
US20160040486 Drill Motor Connecting Rod  
A downhole motor may include a power section, a connecting rod assembly, and a drive shaft. The power section may include a stator and a rotor with the rotor configured to rotate eccentrically...

Matches 1 - 50 out of 54 1 2 >