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Matches 1 - 50 out of 13,383

Document Document Title
WO/2019/160757A1
Systems and methods for installing pipe underground are disclosed. The system includes a pneumatic rammer configured to provide a percussive force to a section of pipe. The system also includes a main jacking frame coupled to the pneumat...  
WO/2019/160420A1
A semi-submersible drilling vessel has a deckbox structure, one or more pontoons, and multiple support columns extending upward from the one or more pontoons and supporting thereon the deckbox structure. An annular riser joints storage c...  
WO/2019/160562A1
A rotary steerable tool for directional drilling includes a tool body including a flowbore for flowing pressurized fluid therethrough and a plurality of extendable members movably coupled to the tool body for selectively engaging a boreh...  
WO/2019/160559A1
A rotary steerable tool for directional drilling includes a tool body including an outer surface and a flowbore therethrough, a pad movably coupled to the tool body and alternately movable between an extended position and a retracted pos...  
WO/2019/148812A1
Provided are a jetting, expansion and extrusion combined pile, a construction method thereof and a spiral jetting, expansion and extrusion drilling rig used in the method. A pile of the combined pile comprises a pile body (101), an expan...  
WO/2019/144663A1
A drilling and dust removal integrated device of a mining drill carriage, comprising: a drill pipe (2); a drill carriage motor (1) rotated to drive the drill pipe to drill; a dust hood (10) provided corresponding to the drill pipe; a cyc...  
WO/2019/145122A1
An apparatus for drilling a well which includes a drill bit (2) arranged at the end of a length of drill tubing (4), a motor (3) to rotate the drill bit and steering means to steer the drill bit, and including torque measuring means (5) ...  
WO/2019/144507A1
Disclosed is a mechanical downhole tool for vertical well drilling using a screw cam, consisting of a motor assembly, a universal shaft assembly and a straightening assembly. The front end of the motor assembly is connected to the univer...  
WO/2019/147820A1
A reaming tool for use in a wellbore has an elongated tubular body with an outer surface. There are at least first and second reamer sections formed on the tubular body, with the first and second reamer sections (i) being positioned circ...  
WO/2019/145602A1
An arrangement and a method for installing a casing in a borehole. The arrangement (100) comprises a casing (1), a boring pipe (2) which is adapted within the casing (1), the boring pipe (2) comprising flow channels for compressed air (3...  
WO/2019/142024A1
While drilling directional and horizontal oil and gas wells, there are two methods for orienting the well in the predefined trajectory and, finally, hitting underground targets: The first is to use down-hole motors along with adjustable ...  
WO/2019/142091A1
Assembly for driving excavating equipment (10, 12) for an excavating machine (100), the assembly comprising: a drive assembly (110, 900), adapted to slide along a mast (5) of a machine (100), for driving the drilling equipment (10, 12); ...  
WO/2019/143402A1
A method of safe pressurized mud cap drilling includes determining a set point for a surface backpressure choke manifold, injecting sacrificial fluids into a drillstring disposed in a wellbore, injecting weighted mud into an annulus, and...  
WO/2019/140884A1
A traffic engineering construction slope protection device, comprising a workbench (1), a hole drilling device (2), and a water quantity adjustment device (3); a drill hole (10) is opened on the workbench, the periphery of the drill hole...  
WO/2019/140336A1
A ported casing collar. The ported casing collar comprises a tubular body defining an outer sleeve. At least first and second portals are placed along the outer sleeve. The casing collar also comprises an inner sleeve. The inner sleeve d...  
WO/2019/136521A1
The present invention relates to a multipurpose drill system, the multipurpose drill system comprising: a drilling rig adapted to drive a drilling assembly; and two or more power sources, wherein at least one of the two or more power sou...  
WO/2019/136524A1
A reamer (1) for underground passageways, comprising: a support housing (3) and a plurality of radially extending cutting wings (11); a plurality of ring segments (13), wherein each ring segment (13) includes an arcuate ring portion (15)...  
WO/2019/134432A1
A hydraulic cutting drill bit with self-carried abrasive material, comprising a drill bit and cutting heads (20) installed around a drill bit top portion. The drill bit is composed of a drill bit outer wall (1) and a drill bit chamber bo...  
WO/2019/134976A1
A drilling conductor (32) supported within a suction anchor (28) is installed by lowering the suction anchor through the top (18) of a frame (12) of a subsea processing unit (10). The base (14) of the frame defines a landing area for the...  
WO/2019/135682A1
A tunnel-boring machine (3) comprising a frame (6), a rotating boring head (4) with rolling disc cutters (5) supported at a front end of a first frame portion (6a), a second, polygonal frame portion (6b) extending rearwards from the firs...  
WO/2019/134956A1
This boring assembly (10) extends along a main axis (A – A') and comprises: • - a boring head (18) comprising: • + at least one first nozzle (20); • + at least one second nozzle (22), the or each second nozzle being different fro...  
WO/2019/133003A1
A drilling system for drilling a wellbore that includes a drill string rotatable in a first direction. The system also includes a bottom hole assembly (BHA) that includes: a drill bit, a housing with a bore, a first fluid-driven motor in...  
WO/2019/133033A1
A drill string steering system includes a flow manifold and a rotary valve. An actuation flow channel and a backflow channel are rotatable with respect to piston flow channels of the flow manifold. The actuation flow channel is rotatable...  
WO/2019/130015A1
A whipstock having a longitudinal axis, a first end and a second end, and a tapering deflection section extending at least part of the way between the first end and the second end, wherein: the deflection section has a rear face; the def...  
WO/2019/133035A1
A rotary steerable tool for steering a drill string can include a tool collar, a plurality of pad pushers, and a plurality of fasteners. The pad pushers can each be positionable within a respective cavity of the tool collar. Each pad pus...  
WO/2019/133036A1
A rotary steerable tool for steering a drill string may include a tool collar extending along a longitudinal axis of the tool, a pad pusher, a pad retention housing, and a piston liner. The pad pusher may be rotatable about a pivot axis ...  
WO/2019/132929A1
The disclosed embodiments include systems and methods to improve downhole drilling. In one embodiment, a method to improve downhole drilling includes receiving a well plan, where the well plan is indicative of a well path to form a boreh...  
WO/2019/132691A1
The invention relates to the field of drilling. A drilling assembly comprises a drill bit, and a positive displacement motor having a bending unit for deviation by a tilt angle f, and further comprises a rotation module and a hinge modul...  
WO/2019/133034A1
A steering head for steering a drill string may include a pad pusher including a steering pad and a piston. The steering pad may have a pivot axis, and be rotatable about the pivot axis between retracted and extended positions. The pad p...  
WO/2019/133032A1
A drill string steering system includes a motor and a rotary valve body disposed in a tool body. The motor includes a motor shaft coupled to the motor and extending within a central bore of the tool body. The motor shaft has a downhole e...  
WO/2016/066177A3
This technique (Dynamic Underbalanced Drilling- DUBD) is based on basic physical and fluid mechanics laws to create an underbalanced zone below and around the bit. This technique utilizes the high velocities of drilling fluid coming out ...  
WO/2019/125641A1
A pipe handling system for a platform based drill (16) includes a drilling platform (18) with a frame structure (20) having a first end (32), a second end (34) opposite the first end, and first and second opposite sides (33, 35). A mast ...  
WO/2019/125643A1
A platform based drill includes a drilling platform (18) including a frame structure (20) with first and second opposite ends (32, 34), and first and second opposite sides (33, 35). A mast (30) supported on a pivotal connection (46) to t...  
WO/2019/125533A1
A system, drilling assembly, and method to control adjustable pads for use in downhole directional drilling. The drilling assembly comprises a bent housing comprising an upper section, a lower section, a bend between the upper and lower ...  
WO/2019/121401A1
The invention relates to a feed beam, rock drilling unit and to a method. The feed beam (5) comprises a metallic base profile component (11) and one or more composite stiffening elements (19).  
WO/2019/118184A1
A method may comprise measuring during a survey operation a gravitational field data using a survey accelerometer and magnetic field data using a survey magnetometer and determining during a drilling operation an azimuth of a wellbore ba...  
WO/2019/118188A1
A method may comprise obtaining, during drilling operations within a wellbore, two-dimensional accelerometer data with an accelerometer on a rotating downhole tool, determining a radial offset of the accelerometer based on the two-dimens...  
WO/2019/118167A1
Methods and systems for controlling drilling operations are provided. The methods and systems include conveying a drilling tool into a bore and operating the drilling tool to drill in a direction, creating, with an azimuthal sensing devi...  
WO/2019/117868A1
Systems and methods for performing laser operations in boreholes. Systems and methods for providing a plurality of laser beams in a laser beam pattern to create holes in the bottom of a borehole surface in a pattern correspond to the las...  
WO/2019/117872A1
Systems and apparatus for performing laser kerfing operations in boreholes. Systems and apparatus for providing a plurality of laser beams in a concentric ring laser beam pattern to create holes in the bottom of a borehole surface in a p...  
WO/2019/117867A1
Systems and apparatus for performing laser operations in boreholes. Systems and apparatus for providing a plurality of laser beams in a laser beam pattern to create holes in the bottom of a borehole surface in a pattern correspond to the...  
WO/2019/113081A1
Various implementations described herein refer to an apparatus having an instrument cluster with accelerometers and gyroscopic sensors. The apparatus may include a controller that communicates with the instrument cluster, receives measur...  
WO/2019/111304A1
Provided is a rock drilling device that is configured so that a main component member of the rock drilling device can perform a variety of operations such as a swinging operation, a horizontal revolving operation, an omnidirectional osci...  
WO/2019/104752A1
A miniature full-section drilling arrangement device for a model experiment and an application thereof, comprising a track mechanism, a drilling mechanism, and a controller (8). The drilling mechanism is provided on the track mechanism a...  
WO/2019/109081A1
Various implementations described herein refer to a method. The method may include receiving first gyro-while-drilling (GWD) survey data acquired using a first survey tool disposed within a wellbore. The method may include receiving seco...  
WO/2019/105874A1
The invention relates to a penetrating non-magnetic hollow pole inwardly containing a magnetic pole, said pole being able to penetrate the ground thanks to a water flow exiting the pole lower tip. Furthermore, the invention is directed t...  
WO/2019/108560A1
A coiled tubing wellbore fluid may include a base fluid; and a crosslinked and branched polymeric fluid loss control agent formed from at least an acrylamide monomer and a sulfonated anionic monomer; wherein the coiled tubing wellbore fl...  
WO/2019/104369A1
An elongate member handling system (la, lb) connected to or connectable to a mast (101) of a rig (100), said handling system (la, lb) comprising a travelling holding assembly (la) for holding an elongate member (tubular or sucker rod - 1...  
WO/2019/103630A1
The invention relates to an autonomous drilling machine for the construction of service shafts and open shafts, also known as slots, especially designed to improve efficiency in mining and civil engineering, as well as significantly redu...  
WO/2019/100116A1
A steering collar for deflecting a drill string in a borehole to cause the borehole to be drilled in a different direction. The steering collar surrounds a hollow drive shaft which is driven by the drill string. During normal drilling op...  

Matches 1 - 50 out of 13,383