Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 1,001 - 1,050 out of 13,839

Document Document Title
WO/2016/033707A1
Disclosed is a walker-type rotary drilling rig; a slewing bearing (8) is mounted below a main machine body (14); a bearing mount (19) is connected to a fixed travel frame (6); the bearing mount (19) is connected to a longitudinal connect...  
WO/2016/036788A1
A bottomhole assembly (BHA) has a first section, a second section, and a drilling motor disposed along the second BHA section. The first BHA section is connected to the second BHA section with a flex sub. A steering assembly positioned a...  
WO/2016/036808A1
A jet pump assembly is adapted to be releasably attached to a tubular member of a tubular string in an oil well. The jet pump may be pumped out of the tubular string to the surface by a reverse flow of power fluid down the well between t...  
WO/2016/032640A1
A method for wellbore directional drilling includes selecting a starting and stopping spatial position of at least one portion of the wellbore. A sequence of sliding and rotary drilling operations within the portion is determined to calc...  
WO/2016/029728A1
A self-driven casing pipe lowering device, comprising, sequentially connected from top to bottom, a turbine assembly (1), a drive shaft (4) driven to rotate by the turbine assembly, a drill bit (5) driven by the drive shaft and installed...  
WO/2016/033395A1
A technique facilitates drilling of deviated boreholes. The technique employs a drilling system which may be disposed along a drill string. The drilling system may be used to drill a straight section of a borehole along a straight boreho...  
WO/2016/028159A1
A drilling module (1) for radial drilling in a well (2) and an anchoring module (6) for use in a well tool (5) are described, the well (2) being defined by a wall (21) and the well having an extent in an axial direction (A). The drilling...  
WO/2016/028160A1
A wireline- or umbilical-operated drilling unit (2) especially for forming a second borehole (12) sidetracked from an established first borehole (11) in an underground structure (1) and for reaming an established first or second borehole...  
WO/2016/026022A1
A manually operated pneumatic rock drill positioner for mining shaft wall boring, said positioner comprising: an articulated boom having one end for releasable coupling to a mobile ground platform and another end opposite said one end th...  
WO/2016/025521A2
An improved system and method for bracing, transporting, assembling, and disassembly of drilling equipment at oil and gas land-based well sites. The system has a substructure with side boxes support bracing that are in a scissor jack (or...  
WO/2016/019427A1
A well system comprising at least one gas well extending from a ground surface into the ground, a water production well extending from a surface into the ground and a water drainage well fluidly connecting the at least one gas well to th...  
WO/2016/015528A1
Disclosed is a rotation guidance apparatus belonging to the technical field of oil drilling equipment. An end part of a lower connector (3) has a ball-socketed ball-joint rod (12), and a drill bit (1) is connected on the ball-joint rod (...  
WO/2016/015654A1
Carbonate rock fracture drilling trajectory design and control methods, comprising: utilizing earthquake data to obtain the contours of carbonate rock fractures; determining a safe distance from each carbonate rock fracture; determining ...  
WO/2016/018230A1
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 having a slot defined therein, and a tor...  
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/2015/065569A3
A pulse generator comprises a stator coupled to a housing and a rotor that is rotatably disposed within the housing. An annulus is formed between the rotor and the stator. An inner bore is formed through the rotor. One or more outer flow...  
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/2015/023541A4
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/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/2015/097575A3
A mechanism for forming a tube from a flat sheet wound on a drum (B1) comprises jaws (12) inside the tube pressing the tube against an outer moulder (10). A method of drilling a wellbore uses two coaxial tubes, both formed from flat stri...  
WO/2015/019112A3
A system and method for drilling a formation and a method for computing expected production from a wellbore in a formation and/or hydrocarbon reserves associated with the formation, the formation having a plurality of naturally-occurring...  
WO/2015/079418A3
Apparatus for underground hard rock mining includes a vehicle chassis (12) and a plurality of steerable continuous track assemblies (14). Each track assembly has a pair of first flat ground engaging surfaces and an opposing pair of secon...  
WO/2015/166404A3
Drilling rig (1) for creating wells for extracting hydrocarbons, comprising a rig floor (12) raised off the ground; a mast (2), located on the rig floor (12), along which slides a drilling head (25); a mud circulation circuit (3) for cir...  
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/2015/118339A3
There is disclosed a milling apparatus (2) having a use in milling a window (88) in downhole tubing (1) located in a borehole (32) of a well. The milling apparatus comprises a main body (22) comprising an internal bore (42) defining a fl...  
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/2015/101518A3
A steerable oil and/or gas well drilling method comprises: - inducing top drive equipped with a drill string rotation modulation system to cyclically modulate a rotational speed of an upper end of a drill string (1) during each revolutio...  
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 ...  

Matches 1,001 - 1,050 out of 13,839