Matches 1 - 50 out of 155 1 2 3 4 >


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US20120031676 APPARATUS AND METHOD FOR DIRECTIONAL DRILLING  
A directional drilling system and method are provided for directional drilling a borehole by continuous rotating of the drill string in combination with an arrangement of drilling motor assemblies...
US20120247837 HORIZONTAL DRILLING SYSTEM  
A horizontal direction drilling system comprises a power pack coupled to a source of compressed air and a water reservoir and forms a mixture of compressed air, water, and oil. The horizontal...
US20110031018 HORIZONTAL DRILLING SYSTEM  
A horizontal direction drilling system comprises a power pack coupled to a source of compressed air and a water reservoir and forms a mixture of compressed air, water, and oil. The horizontal...
US20140182944 Integrated sidetrack drilling tool  
An integrated sidetrack drilling tool comprising a milling cone, a whipstock iron and a setting anchor; a liquid guiding pipe communicating the milling cone and the setting anchor is provided...
US20120018218 Method and apparatus for directional drilling  
A bottom-hole assembly for directional drilling incorporates a torque generator with a drive shaft connected to a drill string. The torque generator generates a torque that counters a reactive...
US20120205159 RECEIVING LATERAL WELLBORE AND METHOD FOR IMPLANTING SAME  
The present invention relates to an innovative wellbore concept, which gives experts a new alternative enabling them to analyse the economic viability of a deposit. The new structural arrangement...
US20110162891 Rotating Drilling Tool  
Embodiments described herein comprise a system and method for controlling directional drilling. The system includes a conveyance for conveying a bottom hole assembly BHA into a wellbore. The BHA...
US20140027185 High Load Universal Joint for Downhole Rotary Steerable Drilling Tool  
A technique facilitates downhole drilling applications by providing a universal joint. The universal joint has a high load carrying capability presented in a compact and simple configuration. The...
US20140116784 BOREHOLE SELECTOR ASSEMBLY  
A deflector assembly includes two deflectors that can cooperate for directing a bullnose assembly toward an intended bore in a multi-bore well based on a configuration of the bullnose assembly...
US20110168443 Bitless Drilling System  
Deep drillholes of 2 or more meters diameter down to 14-20 km and more, are with current technology extremely expensive and often not possible. Such wells are needed to run almost anywhere old...
US20120000672 VERTIZONTAL GEOTHERMAL LOOP AND INSTALLATION METHOD  
A method and device for installing a tube of a geothermal closed loop system in the ground. A drill rod includes a hook for removably mounting the heat exchange tube for positioning the tube in...
US20120222902 HIGH PERFORMANCE WELLBORE DEPARTURE AND DRILLING SYSTEM  
A system and method facilitate drilling of lateral wellbores by optionally eliminating one or more trips downhole. The system and method provide for drilling a lateral wellbore by enabling the...
US20070261887 Steering Systems for Coiled Tubing Drilling  
A technique provides a drilling system and method in which a drilling assembly is delivered downhole on coiled tubing. The drilling assembly comprises a drill bit and a motor to rotate the drill...
US20140131110 Make-Up/Break-Out Device For Drilling Hammers  
A make-up/break-out device for use with a hammer used in horizontal directional drilling operations. The hammer comprises a drill bit assembly and a housing that are connected via low helix angle...
US20100018773 Tilted Drive Sub  
A tilted drive sub is disclosed with a center line of the internal diameter (ID) offset at an angle from the center line of the outer diameter (OD) starting at a point near to a top end of the...
US20070137897 Combined directional and impact drilling motor  
A directional drilling mechanism is disclosed. The mechanism is also an impact drill.
US20080314643 Drilling System and Methods of Drilling Lateral Boreholes  
A drilling system, comprising: a drilling machine (10), —a drill string (26) connected at one end to the drilling machine so as to be driveable in an axial direction; and a guide (30) connected to...
US20060207798 Steerable drilling system  
A steerable drilling system comprises a bias unit 10, the bias unit 10 having at least one actuator 14 operable by pressurised drilling fluid or mud, in use, and a separator 20 arranged to remove...
US20140251694 Directional Boring Tooling Reed Type Checkflow Valve  
A pipe joint used in horizontal direction drilling operations having a removable valve assembly secured between the pin of a first member and the socket of a second member. The valve assembly...
US20130192898 HYDRAULIC BRAKE FOR DRILLING-BIT  
Method for blocking/braking at least one conical inlet wheel of a drilling-bit of a drilling tool, said method consisting in using at least one toothed wheel (1) of said drilling-bit as an element...
US20090057018 DIRECTIONAL DRILLING CONTROL USING MODULATED BIT ROTATION  
A system for steering the direction of a borehole advanced by cutting action of a rotary drill bit by periodically varying the rotation speed of the drill bit. The steering system comprises a...
US20120228032 EXPANDABLE WINDOW MILLING BIT AND METHODS OF MILLING A WINDOW IN CASING  
A method of milling a window through a casing in a primary well bore and drilling an enlarged sidetracked well bore comprises running into the primary well bore a drilling assembly comprising at...
US20150008045 Steerable Drilling System  
A steerable system comprises a fluid powered motor 10 having a rotor 16 and a stator 18, and a bias arrangement having a plurality of bias pads 34 connected to the stator 18 so as to be rotatable...
US20110308862 DRILLING SYSTEM  
A drilling system comprising a rotatable drill pipe 12 connected to a tractor unit 10, and a steerable drilling system 18, 20, 22, connected to and movable by the tractor unit 10.
US20140367172 DRILL STRING WITH ALUMINUM DRILL PIPES, BENT HOUSING, AND MOTOR  
Methods and apparatuses include drilling a bore hole in a horizontal direction with a drill bit, a bent housing portion, and a mud motor by rotating the drill bit, the bent housing portion, and...
US20150034312 Magnetic Latching Device For Downhole Wellbore Intercept Operations  
A downhole magnetic latching tool includes at least one permanent magnet deployed on a non-magnetic tool body. A magnetically permeable housing is deployed about the permanent magnet. The magnetic...
US20080185186 DRILLING ASSEMBLY  
An assembly for use in drilling in earth borehole using a drill string including a drill bit comprising a first downhole motor having a rotor operatively connected to said drill bit, a second...
US20130292180 Steerable Gas Turbodrill  
A gas turbodrill with an adjustable bent housing for use in a spur lateral drilling application. The gas turbodrill includes a high-speed gas turbine, a gearbox assembly, a pivoting shaft...
US20070151767 STEERING OF BENT HOUSING MUD MOTOR DOWNHOLE ROTATION DEVICE  
A steerable drilling system comprising a drill string carrying a bent housing, the bent housing containing or having associated therewith a drive motor arranged to drive a drive shaft angled to an...
US20070163810 Flexible directional drilling apparatus and method  
A bottom hole assembly to directionally drill a subterranean formation includes a drill bit, a stabilizer assembly located proximate to and behind the drill bit, a drilling assembly comprising a...
US20050139393 Turbine generator system and method  
In one embodiment, a wellbore power generation method includes causing a fluid to flow through a downhole turbine, and causing the turbine to rotate a generator. At least one of a turbine...
US20110240368 BENDING OF A SHAFT OF A STEERABLE BOREHOLE DRILLING TOOL  
In certain embodiments, a steerable drilling tool is provided including a rotatable shaft extending through a housing where the shaft and the housing are separated by at least one bearing or two...
US20130043076 Rotary Steerable Assembly Inhibiting Counterclockwise Whirl During Directional Drilling  
A bottom hole assembly avoids damaging vibrations that can develop during directional drilling with a rotary steerable system. The assembly has a drill bit, a first collar that rotates with the...
US20130199851 METHOD FOR PRODUCING A HORIZONTALLY DRILLED BORE IN THE GROUND AND HORIZONTAL DRILLING DEVICE  
A method for producing a horizontally drilled bore hole in the ground includes the steps of producing a pit having a circular cross-section; lowering a horizontal drilling device into the pit, the...
US20120145458 ROTARY STEERABLE DRILLING SYSTEM  
A rotary steerable drilling system comprises a rotatable housing having a plurality of steering actuators mounted thereon and movable, individually, between retracted and extended positions, the...
US20110253453 COILED TUBING ORIENTER TOOL WITH DIFFERENTIAL LEAD SCREW DRIVE  
A technique facilitates control over the orientation of a bottom hole assembly. The bottom hole assembly comprises an orienting tool having a dual-spline drive which, in turn, comprises a first...
US20140102799 Dual Drive Directional Drilling System  
One aspect of the present disclosure relates to a dual drive drilling system having a plurality of drill rods that make up a drill string and a steering element for controlling the path of the...
US20120118646 BOREHOLE CUTTING ASSEMBLY FOR DIRECTIONAL CUTTING  
A borehole cutting assembly for directional cutting in a borehole, the assembly comprising an input pipe and a cutting head rotatably mounted on the input pipe such that the orientation of the...
US20120103692 METHOD AND SYSTEM FOR DRILLING USING GAS AS A DRILLING FLUID  
A system and method of drilling. The method may generally include providing a drilling system including a rotary motor operable to rotationally drive a drill bit and providing a supply of...
US20090078462 Directional Drilling Control  
Methods and apparatus for using a quill to steer a hydraulic motor when elongating a wellbore in a direction having a horizontal component, wherein the quill and the hydraulic motor are coupled to...
US20100065331 AUGER BORING MACHINE  
The present disclosure relates to an auger boring machine for boring through the earth. The auger boring machine includes a cutting head for engaging a working face of the earth to cut a bore. The...
US20130333947 MAGNETOSTRICTIVE MOTOR FOR A BOREHOLE ASSEMBLY  
A motor includes: a rotor including an undulated surface; a rod disposed about the rotor; and a coil disposed about the rod to induce shape changes in the rod, which in turn impart forces to the...
US20100006341 STEERABLE PILOTED DRILL BIT, DRILL SYSTEM, AND METHOD OF DRILLING CURVED BOREHOLES  
The present invention provides apparatus and methods for controlled steering. One embodiment of the invention provides a bit body comprising a trailing end, a pilot section, and a reaming section....
US20120217068 Lateral Well Drilling Apparatus and Method  
In one aspect, a drilling apparatus is provided, where the drilling apparatus includes a fluid pump disposed in a main wellbore, a lateral well in fluid communication with the fluid pump and a...
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...
US20130112483 Oil Operated Rotary Steerable System  
A technique facilitates steering of rotary steerable systems when conducting directional drilling operations. A rotary steerable system is combined with a pressurized oil system which delivers oil...
US20050126826 Directional casing and liner drilling with mud motor  
A directional casing drilling system includes a casing string, a mud motor operatively coupled to the casing string, a rotary steerable system operatively coupled to the mud motor, and a drill bit...
US20120080235 SYSTEM AND METHOD FOR DIRECTIONALLY DRILLING A BOREHOLE WITH A ROTARY DRILLING SYSTEM  
This disclosure relates in general to a method and a system for directionally drilling a borehole with a rotary drilling system. More specifically, but not by way of limitation, methods and system...
US20110024196 STEERABLE GROUND PIERCING TOOLS  
A steerable ground piercing tool includes an elongated outer housing having a lengthwise extending bore and an inner assembly at least in part disposed within the outer housing. The inner assembly...
US20150252621 Rotary Stick, Slip and Vibration Reduction Drilling Stabilizers with Hydrodynamic Fluid Bearings and Homogenizers  
Apparatus and method comprising a hydrodynamic bearing disposed about a shaft and within a bore's wall with at least one periphery arced wall radially extending from and arranged about the...

Matches 1 - 50 out of 155 1 2 3 4 >