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Patent Searching and Data


Matches 1,051 - 1,100 out of 13,839

Document Document Title
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/2015/112024A3
There are described methods for controlling the direction of a wellbore (1) trajectory during directional sliding drilling by means of a drill string having a drill bit rotatable, by means of a mud motor, around a drill bit rotation axis...  
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/2015/140344A3
The invention relates to a method for sinking a borehole (2) in mountains, wherein the rock present at the base of the borehole is thermally melted and is removed upward from the borehole (2) by means of a gaseous conveying medium, where...  
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/2015/124733A3
The invention relates to a downhole device for rotary drilling, including a power generator (5) installed at the end of a series of rods (4); a pulse generator (6) which is mechanically and electrically connected to said electricity gene...  
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/2015/148170A4
A towable separator unit (15) for oil wells (11) has a walled enclosure with tanks therein. The tanks, which are an oil-water tank (27), a water tank (29) and an oil tank (31), are separated from one another by interior side walls (39, 4...  
WO/2015/126537A3
A method (100) of monitoring drilling conditions includes acquiring raw data (102) from drilling equipment and conditioning the raw data (104) to generate conditioned data. Conditioning the raw data includes removing outlier data values ...  
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/2015/023541A3
An embodiment of a method for drilling a borehole into an earthen formation, the method including contacting a first end housing at a first axial position with a first drive key, wherein the first end housing has a central axis, a first ...  
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/2015/099973A3
Present embodiments are directed to a tubular stress measurement system including a first sensor configured to detect a parameter indicative of an axial or circumferential position of the plurality of grapples and a calculation system co...  
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/2015/016714A3
A clean-out tool (1) for cleaning out a well bore (WB), said clean-out tool (1) comprising: - a helical displacing member (3) comprising a central shaft (4) and a helical blade flight (5) with a longitudinal axis (8); - a tubular barrel ...  
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...  
WO/2015/161341A1
There is provided a mast for a rig, comprising a main boom having a lower end adapted for pivotal connection to a mast support of the rig; and a mast stop extending from the main boom. In use, the mast pivots between a stowed condition a...  
WO/2015/161209A1
Automated control of a drillstring in a borehole, which is not in continuous rotation, the drillstring comprising an angled component (a bent sub or the like) and a downhole means of rotating the bit, such as a motor or turbine, which ro...  
WO/2015/160417A1
A riserless subsea drilling system includes a tubular drilling string including a drilling bit; a rotating control device including a seal sealed to the drilling string; and a drilling fluid circuit that circulates drilling fluid from a ...  
WO/2015/160554A1
Backward whirling reduction is provided. In one possible implementation a system for reducing backward whirling includes a drill, a bottom hole assembly associated with the drill, and at least one backward whirling disruptor associated w...  
WO/2015/147628A8
Disclosed is a directional drilling machine (10) comprising : a machine body (12) having a forward end (13); a directional drilling device (18) mounted on the body (12) and operable to extend a drill rod (38) away from the forward end (1...  
WO/2015/126791A3
A method for performing a seismic investigation during subterranean drilling operations includes connecting a bottom hole assembly to a drill string. The bottom hole assembly includes a drill bit and a vibration damper. The drill string ...  
WO/2015/157812A1
A method of forming a multi purpose drilling for degassing a coal seam that is to be mined, the method including the steps of drilling a primary borehole from a surface into a zone above the coal seam, such that at least a portion 5 of t...  
WO/2015/097229A3
A coaxial borehole heat exchanger (58) comprising an outer tubular casing (54) located in a borehole, the outer tubular metal casing comprising a series of tubular sections (50,52), wherein opposed ends of adjacent tubular sections are i...  
WO/2015/157318A1
The present disclosure is directed to an apparatus for use with a vibratory tool in a bottom hole assembly to enhance the vibration of the bottom hole assembly. The apparatus includes at least one spring mechanism and a fluid passageway ...  
WO/2015/150291A1
A system for cleaning of a drill bit, comprises a vibration generator arranged to generate vibrations in the ultrasonic frequency range in at least parts of the drill bit, and a power source connected to the vibration generator.  
WO/2015/148287A1
A technique facilitates the dependable, long-lasting use of a downhole component coupled into a drill string. In some applications, the downhole component comprises a stabilizer having a plurality of blades extending outwardly from a bod...  
WO/2015/145293A1
Method of assembly of a string (S) of drilling elements for deepwater drilling. Each drilling element comprises an axial through hole (21), through which drilling mud (M) can at least flow, and two connection portions (23) for connecting...  
WO/2015/148524A1
A rotary table has a non-circular drive recess in the central opening which carries an assembly of mounting structures and slip carriers that when joined together fit in the non- circular drive recess. The plurality of slip carriers are ...  
WO/2015/147628A1
Disclosed is a directional drilling machine (10) comprising : a machine body (12) having a forward end (13); a directional drilling device (18) mounted on the body (12) and operable to extend a drill rod (38) away from the forward end (1...  
WO/2015/148170A1
A towable separator unit (15) for oil wells (11) has a walled enclosure with tanks therein. The tanks, which are an oil-water tank (27), a water tank (29) and an oil tank (31), are separated from one another by interior side walls (39, 4...  
WO/2015/139099A1
The invention relates to an adapted drilling equipment platform with a movable mechanism for a hoisting and lowering transport system, and to a system for lifting and lowering the platform over the well head, wherein a mechanism has a ba...  
WO/2015/141944A1
The present invention relates to an excavating screw for excavating locations where foundation piles or electric poles and earth wires are to be constructed when constructing foundation piles or the mechanical construction of electrical ...  
WO/2015/126315A9
A rock drilling machine (2) which is adapted to intermittently produce shock wave pulses for transfer over a drill string (3) to a rock disintegrating drill bit (6). The rock drilling machine includes: a force setting unit (8) which is a...  
WO/2015/139107A1
An apparatus including a housing, a shaft rotatably extending through the housing, and a bearing assembly for supporting the shaft within the housing, wherein the bearing assembly includes a focal bearing assembly for accommodating tilti...  
WO/2015/137934A1
A disclosed directional drilling sub includes a housing, a coupling mechanism arranged within the housing, a tilt drive shaft extending within the housing and having a first end coupled to the coupling mechanism and a second end coupled ...  

Matches 1,051 - 1,100 out of 13,839