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Patent Searching and Data


Matches 1 - 50 out of 13,777

Document Document Title
WO/2021/069694A1
The invention relates to variation of concentrations of abrasive particles (92) in a stream (90) of drilling fluid mixed with abrasive particles, passed as an abrasive jet through abrasive nozzle(s) of a drill bit (10) along rotations th...  
WO/2021/071879A1
A method for completing a subterranean well with a smart completion system includes drilling the subterranean well to a first depth with a first drill string having a first drill string tubular and a first bottom hole assembly with a fir...  
WO/2021/069154A1
The invention relates to an underwater dredging device having a base frame, which can be placed on the bed of a body of water, at least one dredging unit, which is supported in a vertically displaceable manner on the base frame and is de...  
WO/2021/068557A1
Provided is a rotary drilling rig power head, provided with a drive module, a drill rod (10), a protective tube driver (15), an input member, a first output member, and a second output member; the drive module transmits power separately ...  
WO/2021/072352A1
A reamer includes a housing, a first reamer block, and a second reamer block. The first reamer block includes a leading wall. A second reamer block includes a trailing wall, the trailing wall including a recess. The leading wall is inser...  
WO/2021/067560A1
Systems and methods of optimizing a new well path using a minimum curvature method are disclosed. An arc of the new well path may include a change in curvature at a point along the length of the arc. The arc of the new well path may be d...  
WO/2021/066850A1
A method of managing water content of a pulsed power drilling fluid, the method comprising contacting the pulsed power drilling fluid with a water absorbent material, wherein the pulsed power drilling fluid comprises water at a first wat...  
WO/2021/068005A1
Methods, drilling systems, and computer-readable media for evaluating candidate correctional trajectories for a directional drilling well. If the user wishes to investigate alternatives trajectories or trajectories to get a BHA back to a...  
WO/2021/062486A1
In one aspect, a system (5) for use in providing an approximation or estimation of a characteristic (for example, a bulk density value) of a deposit subject to a drilling operation is disclosed. In one form, the system (5) comprises a pr...  
WO/2021/058817A1
An apparatus, rock drilling rig, method and computer program for executing navigation for a rock drilling rig in a mine tunnel. The rock drilling rig (5) is positioned at faces (9) of rounds (8) and is navigated before initiating drillin...  
WO/2021/061780A1
A hydrocarbon stabilization apparatus is described herein. The hydrocarbon stabilization apparatus comprises a vessel, a heat source deployed inside the vessel, and a surface area structure located inside the vessel. The surface area str...  
WO/2021/057116A1
A resistance reduction device, comprising a first mandrel (1), a first rotation device (7), a second rotation device (6), a second mandrel (10), a first moving device (11), a second moving device (12) and a first outer barrel (9). The fi...  
WO/2021/061395A1
Steering mechanisms for use in RSS systems may be devoid of an elastomeric piston seal. Pistons of the steering mechanisms have a convex cross-section that permit the piston to pivot along with a steering pad while moving laterally or ra...  
WO/2021/061103A1
The present disclosure relates to a pulsed-power drilling system that includes downhole mixers for restoring optimal electrical properties in drilling fluid. The downhole mixer may include a housing having an uphole and downhole end, a c...  
WO/2021/058812A1
The present invention concerns apparatus for effecting a change in direction during driving of a tubular (2) into a formation to establish a wellhead. The apparatus comprises a drive shoe (3) extendable from within a tubular, the drive s...  
WO/2021/053526A1
A drill assembly (10) for use in trenchless subterranean boring, comprising: a drill shoe (20) having a body with a posterior portion (30) and an anterior portion (22), the latter defining a recess while the former comprises drill bits (...  
WO/2021/048496A1
The present invention concerns a method for producing a borehole, in particular a large-diameter borehole, along a drilling axis, comprising the steps of: i) producing an exploration borehole along the drilling axis, ii) digging a hole i...  
WO/2021/048416A1
The invention provides a method of predicting the effect of heave on an offshore well operation performed from a floating offshore structure in a subsea well. The method includes providing heave motion data for the floating offshore stru...  
WO/2021/046308A1
A downhole tool for transmitting rotation to a casing string includes a tool body (402) having a bore (536) extending from a first end to a second end. The downhole tool also includes a cam (530) positioned within the tool body (402), th...  
WO/2021/038274A1
A method for aligning a tool face of a multi bend drilling apparatus and an adaptable directional multi bend drilling apparatus The present invention provides an apparatus and a method that allows building short and ultra- short curves, ...  
WO/2021/040529A1
A device for preventing torsion in a tool string from exceeding a predetermined threshold, wherein the device comprises: - an inner mandrel for transmitting torque between said inner mandrel and a first portion of the tool string, the in...  
WO/2021/041280A1
A cellar 12 around a wellbore 15 is formed or deepened with an excavating system 10 that is capable of being assembled around an existing wellbore 15. The system 10 includes an excavating unit 18 having an annular body 21 with a cutting ...  
WO/2021/038131A1
A drilling unit for drilling a hole, wherein the drilling unit comprising a drilling head (1). Said drilling head (1) further comprising pulling means (2) for pulling a casing (7) into the hole, a pilot bit (3) for drilling a center hole...  
WO/2021/035260A1
The invention relates to a method for producing a geothermal heat collector (1), wherein boreholes (2) are made in the ground (12) and then collector tubes (3) for heat exchange between a medium conducted in the collector tubes (3) and t...  
WO/2021/034769A1
A rotary drill bitb (200A) for use with a horizontal directional drill string. A coupler (206) at a proximal axial end is configured to attach the rotary drill bit to a drill head at a distal end of the drill string. A cutting portion at...  
WO/2021/032461A1
The invention relates to a kelly bar arrangement for a drilling device and to method for working the ground with a drilling device. A tubular external kelly bar and an internal kelly bar, which is displaceably mounted within the external...  
WO/2021/035127A1
The present disclosure is directed to improved downhole motor designs. In one illustrative embodiment, primary and secondary thrust bearings that are maintained in position by other structural components of the motor without compressive ...  
WO/2021/034801A1
A sidetrack window (210) is cut in a cased wellbore (102) by disposing a sidetracking assembly (100) within the cased wellbore. A first ball (130) is deployed into a drill string (106) of the sidetracking assembly. The first ball leaves ...  
WO/2021/030043A1
Provided, in one aspect, is a drillable window assembly. The drillable window assembly, in this aspect, includes a first precut casing joint, the first precut casing joint including a first casing tubular having two or more radially offs...  
WO/2021/030594A1
A method and apparatus for igniting a power charge in downhole wellbore using an ignition propellant mixed with a main propellant.  
WO/2021/028383A1
The invention relates to an underground drilling rig (10) and to a method for erecting same, wherein the method, in one specific embodiment, comprises erecting a mast structure (20) of the drilling rig (10) starting from a horizontal tun...  
WO/2021/023528A1
A semi-submersible floating offshore vessel has a deckbox structure with a main deckbox bottom extending underneath a lower deck. The deckbox structure comprises a recessed cellar deck structure that protrudes below the main deckbox bott...  
WO/2021/024356A1
Provided is a bubble generating device that generates high-quality and consistent bubbles, and a drilling device provided with the bubble generating device. This bubble generating device (1) is a device for generating bubbles used in a...  
WO/2021/022091A1
A centralizer for use in high speed rotor dynamics applications includes a housing having a first end portion and a second end portion. The centralizer further includes a rotatable shaft positioned within a cavity of the housing. The cen...  
WO/2021/016723A1
An apparatus for controlling tool face and methods of use with a torque generator connected to a drill string for drilling linear and nonlinear subterranean bore segments. In some embodiments, the apparatus and methodologies of use compr...  
WO/2021/016884A1
An open-air hydraulic rock drilling machine based on a loader (5). The open-air hydraulic rock drilling machine comprises a loader (5), a big arm device (2) is mounted at a front axle position of the loader (5), the big arm device (2) is...  
WO/2021/016282A1
Embodiments disclosed herein are directed to a flow pulsing system including a rotor, a stator, a dart which is configured to releasably couple with the rotor, and a nozzle releasably coupled to the rotor which is configured to control a...  
WO/2021/014473A1
Locking and rotating device, twister, for tubular casing elements for vertical excavations. Mechanical locking and rotating device also known as twister, consisting of three elements coaxially connected one inside the other (1, 9, 19), b...  
WO/2021/016309A1
A method for drilling a subterranean wellbore includes rotating a drill string in the wellbore to drill. The drill string includes a roll-stabilized housing deployed in a drill collar and survey sensors deployed in the roll-stabilized ho...  
WO/2021/016376A1
A planning tool plans movement of a boring tool for an underground drilling operation. The planning tool includes one or more wheels for rolling on a surface of the ground along a path responsive to movement by an operator to characteriz...  
WO/2021/007656A1
A system, apparatus, and method for leveling a borehole or blasthole drilling machine (100), or portion thereof, provided over a drilling site (300) can implement a ground contact detect phase or operation (S502), a first coarse leveling...  
WO/2021/011295A1
A method of forming a casing window in a casing tubular includes introducing a bottom hole assembly (BHA) into a casing tubular, running the bottom hole assembly to a selected position in the casing tubular, directing an ultrasonic wave ...  
WO/2021/011872A1
A method of estimating a directional parameter of a downhole component includes deploying a borehole string in a borehole, the borehole string including the downhole component, the downhole component being rotatable, the downhole compone...  
WO/2021/007556A1
A downhole assembly that includes tubulars rotationally coupled to one another. An interface is between adjacent tubulars that makes up at least a portion of the rotational coupling. Certain surfaces of adjacent tubulars come into contac...  
WO/2021/007509A1
A guide for a top drive unit includes a lower track member connected to a lower mast section and an upper track member connected to an upper mast section and telescoped with the lower track section. A slider is slidably positioned about ...  
WO/2021/006800A1
The present invention relates to a method for estimating wear of a drill bit in percussive rock drilling, wherein a percussion device (106) is configured for generating shock waves in a drill bit (108) for breaking rock; the method compr...  
WO/2021/003242A1
A reamer for drill string pullback of a horizontal directional drill includes a shaft portion defining a central axis and a first end configured for attachment with a drill string of the horizontal directional drill. A plurality of vanes...  
WO/2020/257913A1
Guidance methods for guiding the drilling of wells while reducing trajectory drift. Each drilled well incorporates signalling devices which are used together or in a selected sequence to guide additional well drilling. With the progressi...  
WO/2020/263252A1
Techniques for estimating a current inclination and azimuth of a drill bit of a wellbore drilling system are described. The estimates for the current inclination and azimuth are generated using measurements obtained for one or more param...  
WO/2020/264414A1
A running tool for installing a casing hanger down a wellbore incorporates an interchangeable landing sub component that engages the tubular body component with a standard threaded coupling that can be disengaged without the use of a too...  

Matches 1 - 50 out of 13,777