| Document |
Document Title |
|
WO/2016/016657A2 |
A tool assembly (10) comprises a casing section (12), and a downhole tool (14) comprising a rotary drive (16) and a cutting member (18). In use, the tool assembly (10) is disposed in a well borehole (B) and the rotary drive (16) operated...
|
|
WO/2016/018228A1 |
An example whipstock assembly includes a whipstock providing a ramped surface and a longitudinal groove defined in the ramped surface. A lead mill is coupled to the whipstock with a shear bolt and providing one or more blades, and a bear...
|
|
WO/2016/015336A1 |
A drill boom (110) of an underground drilling machine (100) supports a boom assembly (112) of the drilling machine (100) to extend the boom assembly (112) to a certain position, and the boom assembly (112) supports, moves and rotates a f...
|
|
WO/2016/015334A1 |
A supporting mechanism (200) for supporting, moving and rotating a feed beam (114) includes a boom assembly (112), a drill boom (110) and a rotating device (102). The boom assembly (112) connects to the feed beam (114) and supports the f...
|
|
WO/2016/014080A1 |
A downhole drilling tool may include a strain gauge inside a rolling-bearing element. For example, the downhole drilling tool may include a rolling-bearing element having an inner race, an outer race, and one or more bearings disposed be...
|
|
WO/2016/012535A1 |
The present invention provides a method and an abrasive jet drilling system for transmitting information from a downhole location to a surface location. The method comprises: providing a jet drilling system, comprising a drill string ext...
|
|
WO/2016/014472A1 |
A reaming tool for enlarging an underground borehole has a plurality of cutter assemblies distributed azimuthally around a longitudinal axis of the tool. First, second and possibly more cutter assemblies each have an axially extending le...
|
|
WO/2016/014449A1 |
A reamer for enlarging an underground borehole comprises a plurality of cutter assemblies distributed azimuthally around a longitudinal axis of the tool, and each cutter assembly comprises a supporting structure and a plurality of hard f...
|
|
WO/2016/014448A1 |
A reaming tool for enlarging an underground borehole comprises a plurality of cutter assemblies (251, 252, 253) distributed azimuthally around a longitudinal axis of the tool, wherein each cutter assembly comprises support structure bear...
|
|
WO/2016/014375A1 |
Aspects of the disclosure can relate to a system that includes an input shaft to be driven at a nominal uncontrolled rotational speed, and an output shaft coupled with the input shaft to drive a rotary mechanism. The prime mover can be a...
|
|
WO/2016/014283A1 |
A reamer for enlarging an underground borehole comprises a plurality of cutter assemblies distributed azimuthally around a longitudinal axis of the tool. Each cutter assembly comprises a supporting structure and a plurality of hard faced...
|
|
WO/2016/014902A1 |
A fluid pulse valve and a method of using the fluid pulse valve are disclosed. The fluid pulse valve comprises an outer housing, a rotor contained within the outer housing, a stator tube surrounding the rotor and adjacent to the outer ho...
|
|
WO/2016/014490A1 |
A rotary cutting tool, which may be a reamer for enlarging an underground borehole or a mill to remove tubing by cutting into the inside wall of the tubing, has a plurality of cutter assemblies distributed azimuthally around a longitudin...
|
|
WO/2016/014477A1 |
A reaming tool for enlarging an underground borehole comprises a plurality of cutter assemblies distributed azimuthally around a longitudinal axis of the tool, wherein each cutter assembly includes a supporting structure bearing a sequen...
|
|
WO/2016/012981A1 |
A slot reamer head arrangement comprising a substantially rectangular body from which three reaming heads extend in line is provided. In an embodiment, a central reaming head is fitted to a drill string extending from a drilling machine,...
|
|
WO/2016/008031A1 |
A drilling rig may include a pair of main beams supportable by a pair of rails, a substructure, an A-frame secured to the main beams, and a mast pivotably secured to the main beams and configured to lay down in a pre-erected stage. The s...
|
|
WO/2016/011031A1 |
An expandable tool includes a body and a recess extending at least partially through the body from an outer radial surface of the body. A spline insert may be at least partially positioned in the recess and coupled to the body. The splin...
|
|
WO/2016/009323A1 |
Fall prevention safety device (D) for the head-carrying carriage (C) of drilling machines, comprising a safety cable (F) constrained between said carriage (C) and a rotating drum (T) suitable for winding said safety cable (F). Said drum ...
|
|
WO/2016/007700A1 |
A mill for use in milling a section in a wellbore is disclosed that includes a first concave curved section followed by a substantially flat section and a second concave curved section following the substantially flat section and a numbe...
|
|
WO/2016/004954A1 |
A cutting tool (1) for widening the diameter of a borehole and method thereof is disclosed. The cutting tool (1) comprises a housing (2) having cavity (10) in which a moveable activation element (6) is arranged. The activation element (6...
|
|
WO/2016/007689A1 |
The drill string axial vibration attenuator (10) is installed in the bottom hole assembly (BHA) of a drill string to attenuate axial and torsional vibrations of the drill string. The vibration attenuator (10) includes a massive elongate ...
|
|
WO/2015/200398A1 |
A production system (31) for use in a wellbore (13) having a main bore (15) with an axis (17), a lower lateral bore )19), and an upper lateral bore (21), includes a hollow whipstock (37) with a central bore (39). The hollow whipstock is ...
|
|
WO/2015/199973A1 |
A powered reamer comprising a stationary assembly having a flow bore therethrough. A rotating assembly is disposed about the stationary assembly and one or more cutting structures are coupled to an outer surface of the rotating assembly....
|
|
WO/2015/197828A1 |
In order to create an especially long borehole (15) in the ground (14) and to lay a pipeline in the borehole (15), the invention proposes a method and devices that can be used therein. The method consists of the steps: pre-fabrication (1...
|
|
WO/2015/196274A1 |
A method of drilling a borehole from a surface location with a drill string, and a system for implementing the method are provided. The method includes a rotary mode that involves rotating the drill string at a rotary mode rotation rate ...
|
|
WO/2015/200390A1 |
Systems and methods are presented for drilling a wellbore with a portion having a short radius of curvature. The systems include a drill assembly having a motor and a tubular housing. An actuator is at least partially disposed within the...
|
|
WO/2015/192225A1 |
A method and apparatus for downhole data transmission. The method comprising monitoring electrical impedance properties of a downhole formation by applying an electrical signal between a first portion and a second portion of a drill stri...
|
|
WO/2015/195760A1 |
Passive load balancing in a fluid bearing for a rotational device is provided using disclosed devices, systems, and methods. In particular, fluid bearing apparatus may include an outer member with an inner member disposed concentrically ...
|
|
WO/2015/193799A1 |
Disclosed is a mechanical force generator for use in a drillstring that provides a sinusoidal or near sinusoidal oscillating output, comprising: a rotatable cam plate connected to a mass, the cam plate having two opposed oblique bearing ...
|
|
WO/2015/194898A1 |
The present invention relates to a rod clamping device, and the rod clamping device for clamping a rod to a driving shaft provided at a head part moving along a lead of a boring machine comprises: a housing coupled to the driving shaft; ...
|
|
WO/2015/192202A1 |
A hydraulic drilling system and method for drilling a borehole from a wellbore are disclosed. The system comprises a whipstock that is selectively rotatable about the central long axis of the work string, for repositioning the whipstock ...
|
|
WO/2015/191889A1 |
A downhole tool is disclosed herein that has an inlet for receiving fluid into a housing of the downhole tool. The downhole tool further includes a vibratory apparatus at least partially disposed within the housing of the downhole tool, ...
|
|
WO/2015/191021A1 |
A fluidic oscillator assembly can include at least one fluidic oscillator, and a closure that in one position prevents flow through the oscillator to an exterior of the assembly, and in another position permits flow through the oscillato...
|
|
WO/2015/191572A1 |
A downhole tool including a body coupled to a stabilizer and an underreamer. The stabilizer may include a blade that moves from a retracted position to an expanded position. The underreamer may include a cutter block that moves from a re...
|
|
WO/2015/187297A1 |
A method includes conveying a whipstock and a latch anchor into a parent wellbore, the latch anchor being attached to the whipstock at a releasable connection and the parent wellbore being lined with casing that includes a latch coupling...
|
|
WO/2015/187526A1 |
A method and system for directionally drilling a wellbore. The method includes measuring an off-bottom rotating torque applied to a drill string in the wellbore. A steerable drilling motor is oriented proximate a bottom of the drill stri...
|
|
WO/2015/188155A1 |
A friction reduction apparatus (FRA) positioned onto a pipe string comprises a tubular housing, upper and lower mandrels having variously configured fluid flow passages and ports, a valve and a shifter. Fluid travelling through the appar...
|
|
WO/2015/183231A1 |
In one example of forming multilateral wells in unconventional reservoirs, a subterranean zone is drilled using a drilling rig to form a main wellbore. Using the drilling rig, the subterranean zone is drilled to form a lateral wellbore o...
|
|
WO/2015/179953A1 |
Vibration assisted rotary drilling (VARD) tools that provide axial compliance and low amplitude axial displacements at the drill bit while transmitting the full rotary speed and torque of the drill string to increase drilling penetration...
|
|
WO/2015/179307A1 |
A controlled slip connection system 40 is configured to be coupled between a drill pipe 30 and a directional drilling assembly 32, and the slip connection system 40 is configured to enable continual rotation of the drill pipe 30 while pr...
|
|
WO/2015/175498A1 |
One or more ram accelerator devices may be used to form one or more holes in geologic or other material. These holes may be used for drilling, tunnel boring, excavation, and so forth. The ram accelerator devices propel projectiles which ...
|
|
WO/2015/173049A2 |
The invention relates to a method for introducing a borehole (1), in particular into the earth's crust (3), by means of a drill head (4) which is held in the borehole (1) by a drill rod (5), the drill head (4) comprising a thermal device...
|
|
WO/2015/171327A1 |
Systems and methods for injecting tubewire into the core end of coiled tubing sections on reels. Methods are described for disposing tubewire into multiple sections of coiled tubing.
|
|
WO/2015/170234A1 |
A casing drilling system includes combination conduit (18) of a casing (18B) and a pipe (18A) inside the casing. A first adapter (38) has a flow diverter to redirect at least flow of drilling fluid returning from a bottom of a wellbore t...
|
|
WO/2015/170104A1 |
Described is a device (410) for use in removing a conveyance member from a material. The device (410) includes a displacement element (412) for being placed at least partly around a conveyance member and for displacing material as the de...
|
|
WO/2015/171334A1 |
Pulse power drilling fluids comprising a base fluid solution of a low viscosity ester and an alkylene carbonate in an amount that is soluble in the ester are provided. The pulse power drilling fluids provide excellent properties for use ...
|
|
WO/2015/168575A1 |
A wellbore casing cutting tool having multiple expandable cutter bases. The leading or downhole ends of the cutter bases are tapered, forming a tapered nose profile, and are covered with hardened cutting material to form a cutting surfac...
|
|
WO/2015/164911A1 |
An apparatus for rotating a tube or rod is provided. The tube or rod is supported from a mast of a rig and for insertion into a well. The apparatus includes a rotation member for rotating the tube or rod. The rotation member is mounted o...
|
|
WO/2015/166294A1 |
The invention relates to a system and a method for building microtunnels, comprising: defining an entrance area and an exit area; installing a plurality of tensioning means with one end in the entrance area, each one to be pulled by forc...
|
|
WO/2015/167458A1 |
A system and method for drilling is disclosed, the system including a drill string with at least one drill pipe, a bottom hole assembly and a drill bit. The bottom hole assembly includes a downhole mud motor for rotating the drill bit, a...
|
