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Matches 1 - 50 out of 2,204

Document Document Title
WO/2018/008842A1
The present invention relates to top-sheaves for preventing a leader of a drilling machine from being bent, wherein the principle of the lever is applied to the top-sheaves of a leader so as to effectively distribute a load transmitted t...  
WO/2018/007236A1
A foundation drilling machine (100) comprises: a base (1) revolvingly mounted on an undercarriage (2), a rotation system (7) that allows the base to rotate with respect to the undercarriage, a tool (50) intended to work the ground, an ar...  
WO/2017/217848A1
A method for drilling a wellbore wherein use is made of a top drive device comprising: -multiple electric top drive motors each having a rotor, -a transmission to which said rotors of said multiple top drive motors are operatively connec...  
WO/2017/217839A1
A wellbore drilling installation and method for drilling a wellbore or other wellbore related activities. The installation comprises a drilling tower, drill floor with well center, and a slip device system comprising a first slip device ...  
WO/2017/204664A1
The invention can be used in underground mining, being mounted on a device commonly known as a rock drilling jumbo. The system of the invention is used for systems for drilling long radial holes. In ore extraction in underground mining, ...  
WO/2017/188876A1
A retainer means for the connection between a drill bit and a chuck fastening of a rotating tool, in particular for a rock drill arrangement, whereby the chuck fastening comprises first retainer means, and the drill bit comprises a drill...  
WO/2017/147563A1
Apparatus for splitting rock, the apparatus comprising: a housing; a drill assembly mounted to the housing and configured to move longitudinally relative to the housing, the drill assembly comprising a shaft having a proximal end and a d...  
WO/2017/127924A1
A rotor carries a gripping mechanism operable to grip an elongated object such as a drill string section. The rotor is driven by one or more drive mechanisms comprising a flexible element such as a chain. The flexible element allows some...  
WO/2017/132105A1
A top drive unit including a top drive housing, a drive stem disposed in the top drive housing, a carrier configured to axially move the drive stem relative to the top drive housing, and a drive mechanism for rotating the drive stem.  
WO/2017/127604A1
A method and apparatus for suppling non-hydraulic power to a tool unit during well operation. A top drive (4) supplies power to a power consumer of the tool unit (200) with a non-hydraulic power supply: a mechanical power coupling from t...  
WO/2017/127749A1
A drill rig system for drilling a wellbore in the earth, the drill rig system comprising: a drill rig comprising: a substructure supporting a rig floor and a mast extending vertically above the rig floor; a top drive supported by a line ...  
WO/2017/116676A1
A method for reducing noise at a wellsite includes transmitting a plurality of first signals from a variable frequency drive (VFD) to an alternating current (AC) induction motor. A timing of a plurality of second signals is varied to con...  
WO/2017/105228A1
The present invention relates to a drilling rig configured to drill deep wells, comprising an articulated arm with at least two arm sections, and wherein a drilling motor assembly is pivotally arranged on one of the arm sections. The pre...  
WO/2017/100648A1
A downhole system for use in a wellbore in a subterranean formation includes an electromechanical motor or generator. The electromechanical motor or generator may, respectively, be configured convert electricity to mechanical energy or c...  
WO/2017/095877A1
A top drive system with a removable flange is provided. In one embodiment, a top drive (28) includes a quill (46), a motor (44) coupled to drive rotation of the quill, and a swivel (42) including a housing (62) and a bearing (64) dispose...  
WO/2017/091495A3
A system (10) for drilling a subterranean borehole (20). In an embodiment, the system includes a mast (12), and a pipe rotator (50) coupled to the mast. The pipe rotator includes a stem (52) that is configured to be coupled to an end of ...  
WO/2017/083940A1
A drill motor assembly including a drill shaft and at least two sub-motor assemblies operatively engaged with the drill shaft to cause the drill shaft to rotate.  
WO/2017/070206A1
A power swivel (10) is disclosed that is configured to rotate tubular string and drill bit to form or extend a subterranean borehole. In an embodiment, the power swivel includes a motor (12), a gear box (16) coupled to the motor, and a l...  
WO/2017/065605A1
The present invention relates to a top drive well drilling installation comprising a trolley guided along one or more vertical rails along the drilling tower, which trolley is provided with a support frame supporting the top drive unit a...  
WO/2017/065603A1
A method for servicing a top drive device of a wellbore drilling installation. The installation comprises a drilling tower,a drill floor having a well center through which a drilling tubulars string can pass along a firing line. A trolle...  
WO/2017/065604A1
A method for removal of a top drive device in a wellbore drilling installation, e.g. for servicing and/or exchanging a top drive device. The frame of the trolley and the top drive device are provided with cooperating vertical guide membe...  
WO/2017/059556A1
Provided is a gantry type rotary drilling rig, comprising a power source (9), a winding engine (8), double masts (2) and a hanging head (1). The hanging head (1) is connected to the masts (2). The masts (2) are connected to a fixed stand...  
WO/2017/058027A1
The invention relates to a downhole tool (100) for use in a petroleum well. The downhole tool (100) comprises a first part (110) comprising a driving unit (8), and second part (120) comprising a driven unit (9), wherein the driving unit ...  
WO/2017/045082A1
A downhole assembly and method are provided for selective activation of a motor in a drilling string. A rotor in a Moineau-principle motor is provided with a fluid passage therethrough and a catch that can receive and retain a blocking i...  
WO/2017/044482A1
A system includes an accessory tool selected from a group consisting of a casing unit, a cementing unit, and a drilling unit; and a genset mounted to the accessory tool and comprising: a fluid driven motor having an inlet and an outlet f...  
WO/2017/041118A3
A vibration generator (9) for a drilling installation comprises a housing (16), at least one rotation body (17), a suspension (24) by means of which the rotation body is suspended rotatably within the housing, the mass centre of the rota...  
WO/2017/039221A1
The present invention relates to a boring apparatus using a portable rock drill and, more specifically, comprises: a motor-driven body having a motor mounted therein so as to provide rotating power; a portable rock drill having a rock dr...  
WO/2017/040508A1
The present disclosure generally relates to a combined multi-coupler (4y) for a top drive. In one embodiment, a combined multi-coupler including a first tubular member having a first axial load profile, a first torque profile, and a firs...  
WO/2017/031346A1
A blasthole drill rig includes a base, a drill tower extending from the base, a drill pipe coupled to the drill tower, a drill bit coupled to a lower end of the drill pipe, an air compressor that directs compressed air through the drill ...  
WO/2017/031441A1
A top drive system for use with a tool (102) for handling tubulars on a drilling rig includes a motor unit (100); a coupling unit (108, 11) that transfers torque to the tool; a torque measurement device (TMD) coupled to at least one of t...  
WO/2017/027647A1
A modular top drive system for construction of a wellbore includes an alignment assembly configured to align a tool with a top drive unit to facilitate automatic tool installation during rig up.  
WO/2017/027650A1
A method and apparatus for drilling a wellbore is disclosed. The wellbore is drilled with a drill string that includes a bypass device having a fluid passage therethrough by supplying a fluid through the bypass device at a first flow rat...  
WO/2017/016714A1
The invention relates to a drilling apparatus and a method for producing a bore in the bottom of a body of water from a floating platform (4) which is exposed to lifting motions, in particular a wave motion of the body of water (8), wher...  
WO/2017/018990A1
A drill bit may include rings that are rotatable at different speeds along a single axis. The drill bit may be coupled to a motor using multiple driveshafts. Each driveshaft can be coupled to one of the rings. Each driveshaft may transmi...  
WO/2017/014903A1
A system includes a span block (48) configured to couple with an extension (44) from a top drive (42) at a first end (76) of the span block and configured to couple to a tubular (38) at a second end (78) of the span block. The system als...  
WO/2017/008469A1
A movable drill pile of a pile driver for a cement-soil mixing pile, comprising an actuating housing (1) having a cavity. Provided on the actuating housing is at least one through hole (11) running in the axial direction through the enti...  
WO/2017/008470A1
A movable drill pile of a pile driver for a cement-soil mixing pile, comprising an actuating housing (1) having a cavity. Provided on the actuating housing is at least one through hole (11) running in the axial direction through the enti...  
WO/2017/000968A1
Disclosed is a device for drilling oil wells, comprising: a cone operated by a hydraulic shaft that rotates the cone completely; and a horizontal second shaft disposed on the main shaft and connected to a groove made inside the cone, sai...  
WO/2016/204608A1
A drilling rig adapted to perform drilling and/or other wellbore related activities. The drilling rig comprises a drilling tower,a drill floor with a well center,a slip device arranged at the well center,a tubulars connection makeup and ...  
WO/2016/197255A9
Apparatus for use in subsurface drilling permits coupling and uncoupling of drill string sections while continuously moving the drill string. Tripping times can be reduced while maintaining low speeds of the drill string. In one embodime...  
WO/2016/197255A1
Apparatus for use in subsurface drilling permits coupling and uncoupling of drill string sections while continuously moving the drill string. Tripping times can be reduced while maintaining low speeds of the drill string. In one embodime...  
WO/2016/159437A1
The present invention relates to a casing rotator having a reverse-circulation bedrock-crushing function and, more particularly, to a casing rotator capable of performing a reverse-circulation bedrock-crushing function, which crushes a b...  
WO/2016/161298A1
Techniques and systems to reduce contact of a cable (18) with a top drive (12). A cable guide may be mounted to one or more bails (36) supporting the top drive (12) and may operate to extend a distance (44) between a cable (18) passing a...  
WO/2016/154669A1
The present invention relates to a hollow boring auger for use for poles, including a first and second mounting part moveably connected, one to the other, to substantially encircle the pole. A first and second auger part are also include...  
WO/2016/160701A1
A top-drive system and a drilling rig. The top-drive system includes a sheave configured to receive a drilling line, a frame coupled with the sheave and configured to transmit a weight of a tubular string suspended therefrom to the sheav...  
WO/2016/149525A1
Systems and methods for automatically controlling a band brake handle of a drilling drawworks are provided herein. An automated band brake drawworks system comprising: an electric linear actuator operatively coupled to a band brake; a mo...  
WO/2016/133905A1
Apparatuses, methods, and systems are described which assist in controlling toolface orientation of a bottom hole assembly. A controller instructs a top drive to oscillate a drill string an oscillation revolution amount to reduce frictio...  
WO/2016/119186A1
Provided is an auger drill operation system, comprising a power supply switch (1), a battery (2), a transmitter (3), a receiver (4), and a ratio adjustment valve; the ratio adjustment valve can adjust the speed of the movements of the au...  
WO/2016/119187A1
Provided is a multi-gear mode control device for an auger drill power head, comprising a power supply switch (1), a battery (2), a pressure sensor (3), a power head mode conversion switch (4), a controller (5), and a ratio adjustment val...  
WO/2016/123066A1
A modular top drive system for construction of a wellbore includes a motor unit. The motor unit includes: a drive body; a drive motor having a stator connected to the drive body; a trolley for connecting the drive body to a rail of a dri...  

Matches 1 - 50 out of 2,204