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Patent Searching and Data


Matches 801 - 850 out of 13,839

Document Document Title
WO/2017/015012A1
A method for forming a leg junction in a well is provided. The method includes drilling a vertical leg upto a first predetermined depth to form a well bore. The method also includes underreaming the vertical leg at a junction location in...  
WO/2017/011894A1
An anti-accretion drilling fluid additive comprising at least one of a hydrophobically modified natural polysaccharide and hydrophobically modified and chemically derivatized polysaccharide; and whereby said additive acts as a bitumen en...  
WO/2017/015004A1
Energy harvesting devices can be deployed in a wellbore to transform external energy in the wellbore to electric power for consumption by electric devices disposed in the wellbore. A method includes deploying an energy harvesting device ...  
WO/2017/014644A1
A device (1) and a method for slanting a conductor casing (30) when establishing a petroleum well where a supporting pipe (6) has been inserted into the seabed (18), the supporting pipe (6) being arranged to receive the conductor casing ...  
WO/2017/012490A1
A vertical guide and dust collection apparatus for drilling transmission and transformation line foundations. The apparatus comprises a vertical guide mechanism and a dust collection mechanism. The vertical guide mechanism and the dust c...  
WO/2017/009613A1
A downhole apparatus (10) that is selectively reconfigurable between a first configuration and a second configuration. The downhole apparatus comprises an actuator (24) for controlling the reconfiguration between the first and second con...  
WO/2017/011579A1
Techniques and systems to reduce movement of at least one portion of an offshore platform (10). One portion (22) of the offshore platform (10) can provide a connection to a seafloor (14). A second portion (20) of the offshore platform (1...  
WO/2017/005216A1
The present invention relates to the technical field of oil and gas drilling engineering. Disclosed is a double-injection-pump continuous injection method suitable for particle-impact drilling. The method comprises the following steps in...  
WO/2017/007344A1
In summary, the utility model according to the invention is applied to an original articulated drilling vehicle, which has two purposes. The first is to improve lateral stability of the vehicle when it turns, and the second is to have ac...  
WO/2017/005217A1
A particle-impact drilling method comprises the following steps: a. a particle injection step: injecting a slurry and particles in a well by using an injection apparatus; b. a particle recovery step: guiding a mixture of particles, rock ...  
WO/2017/004691A1
A drilling apparatus including a housing having a housing bore, a proximal housing end, and a distal housing end, a driveshaft rotatably supported within the housing bore, a fixed first angular offset axially located between the proximal...  
WO/2017/003488A1
Drilling dysfunction during simultaneous down-hole drilling and reaming is reduced by obtaining an indication of force on cutters of a reamer, determining whether or not the indication indicates an excessive force, and upon determining t...  
WO/2017/004539A1
A steerable earth boring assembly which includes an annular collar and a drive shaft with a drill bit, where the shaft pivots with respect to the collar. An upstream portion of the shaft inserts into an orientation sleeve which resides i...  
WO/2017/003433A1
A downhole friction control system comprises a downhole sub to attach to a drill string and a vibration component. The vibration component is mechanically coupled to the downhole sub to generate a selected vibration in the drill string w...  
WO/2017/003948A1
A steerable earth boring assembly which includes an annular collar and a drive shaft with a drill bit, where the shaft pivots with respect to the collar. An upper portion of the shaft inserts into an orientation sleeve which resides in t...  
WO/2017/004533A1
A steerable earth boring assembly which includes an annular collar and a drive shaft with a drill bit, where the shaft pivots with respect to the collar. An upstream portion of the shaft inserts into an orientation sleeve which resides i...  
WO/2016/209686A1
A departure device couples to a bit using a connector that facilitates release of the bit from the departure device. The connector may be more millable than the departure device and can transmit axial and torque loads between the bit and...  
WO/2016/202798A1
The invention relates to a linear motor drive system for accelerating a vehicle (3) within an acceleration section on a track (1). The linear motor drive system comprises a stator having at least two stator elements (2) arranged along th...  
WO/2016/202369A1
The invention relates to an apparatus for controlling collaring drilling. The apparatus comprises at least one collaring cycle executed in a control device. The collaring cycle comprises an advance drilling step, a reversing step and a m...  
WO/2016/204964A1
In one possible implementation, a steering control module includes a received signal analysis module configured to analyze transducer signals propagated through a formation between a lateral wellbore and an active well undergoing a drill...  
WO/2016/195530A1
The invention relates to the mining industry and can be used for drilling wells. The present device comprises a housing with a drilling tool, which can be lowered on an armoured sleeve into a wellbore; a gripper mechanism in the form of ...  
WO/2016/195529A1
The invention relates to the mining industry and can be used for drilling wells. The present device comprises a housing with a drilling tool, which can be lowered on an armoured sleeve into a wellbore; a gripper mechanism in the form of ...  
WO/2016/191800A1
A mining system that includes at least one remote mining head assembly that is capable of mining a seam of ore and tracking the direction of the seam of ore. The assembly uses high intensity electrical pulse electrodes to dislodge and br...  
WO/2016/192107A1
A method for varying a weight on a drill bit in a wellbore. The method includes running a downhole tool into the wellbore on a drill string. The downhole tool includes a motor and a drill bit. The drill bit is rotated with the motor to d...  
WO/2016/195528A1
The invention relates to the mining industry and can be used for drilling wells. The present device comprises a housing with a drilling tool, which can be lowered on an armoured sleeve into a wellbore; a gripper mechanism in the form of ...  
WO/2016/192928A1
A raise boring head for rotary boring in rock having a main body mountable at a drive shaft in which a mount face provides a supporting surface for a plurality of saddles that mount, in turn, respective roller cutters. At least one guide...  
WO/2016/183536A8
A system may include a surface coil positioned at a known surface position, the surface coil including at least one loop of a conductor. The system may also include a coil controller coupled to the surface coil and adapted to inject a cu...  
WO/2016/192844A1
The invention relates to a system for laying underground cables or underground lines in the ground near the surface, in a borehole (102) along a laying route (101) between a start point (100) and a target point (110), comprising a boring...  
WO/2016/195531A1
The invention relates to the mining industry and can be used for drilling wells. The present device comprises a housing with a drilling tool, which can be lowered on an armoured sleeve into a wellbore; a gripper mechanism in the form of ...  
WO/2016/195677A1
A drilling system comprising a drill string defined between an upper end and a lower end. The drill string comprises a drill pipe, a motor disposed between the drill pipe and the lower end, a drill bit disposed between the motor and the ...  
WO/2016/192776A1
The invention relates to an apparatus, method and computer program product for determining positional condition of a satellite positioned mobile mine work machine a work site. The apparatus determines satellite coverage condition data on...  
WO/2016/187372A1
A rotary steerable device includes a steering pad disposed with a drilling tool and radially moveable relative to a centerline of the drilling tool to apply a steering force to a borehole wall. The steering pad has a front face to contac...  
WO/2016/187373A1
A rotary steerable drilling system having a series of actuators disposed with a drilling tool, the series of actuators arranged in close proximity and independently operable to distribute a total steering force applied to a wellbore wall...  
WO/2016/166559A3
Device for drilling and cutting with improved electrode enables simpler construction and easier handling and can therefore be constructed as the portable handheld device, i.e. it can be used for cutting and drilling under the water. It c...  
WO/2016/186672A1
Directional control of a rotary steerable drilling assembly can be facilitated by a flow control module for maintaining a geostationary position or orientation of components of the assembly. The drilling assembly can include a bit shaft ...  
WO/2016/186509A1
A method for achieving zonal control in a wellbore when using casing or liner drilling comprises: providing a slotted tubular section in a wellbore while drilling; providing a sleeve adjacent to and radially overlapping with the slotted ...  
WO/2016/183645A1
The subject matter of the present patent allows soil or rock masses to be drilled by rotary percussion drilling using the HIDROBIT® (1) coupled to the casing shoe (2), at the same time as cement grout is injected with the reinforcement,...  
WO/2016/179774A1
A power head of a rotary drilling rig and a rotary drilling rig. The power head comprises: a drive device (110) and a transmission device. The transmission device comprises an input shaft (136), a first output shaft (132) and a second ou...  
WO/2016/183536A1
A system may include a surface coil positioned at a known surface position, the surface coil including at least one loop of a conductor. The system may also include a coil controller coupled to the surface coil and adapted to inject a cu...  
WO/2016/179676A1
A drilling apparatus having a drive section and a bearing section axially distal to the drive section. The bearing section includes a unitary bearing housing defining a bearing housing bore, a driveshaft received within the bearing housi...  
WO/2016/183205A1
The invention relates to a method, system and apparatus for determining real-time drilling operations dysfunctions by measuring the power-loss of signal propagation associated with a drill string in a wellbore. The invention comprises ac...  
WO/2016/183149A1
An acid tunneling system for forming lateral tunnels from a central wellbore. The acid tunneling system includes an acid tunneling tool having an acid injection nozzle which can be steered and oriented in response to downhole parameters ...  
WO/2016/118008A9
The invention relates to a directional casing drilling system comprising a casing string, a drilling rig and a retrievable Bottom Hole Assembly (BHA). The drilling rig comprises a casing drive for rotating the casing string in the boreho...  
WO/2016/176259A1
A mill assembly having a mill shaft body, removable bearing and removable blade sleeve. The shaft body presents a mounting portion having a plurality of arcuate curved contact faces for transmission of rotational forces.  
WO/2016/176101A1
Provided in some embodiments are systems and methods for simulating a well. Embodiments include, for each lateral of a well, obtaining wellbore directional survey data identifying a path of the lateral, generating (using the wellbore dir...  
WO/2016/142537A3
Provided is a device for converting rotary motion into oscillatory axial motion, which device comprises: (a) a rotation element (1); (b) a base element (2); and (c) one or more bearings (3) for facilitating rotary motion of the rotation ...  
WO/2016/173255A1
Disclosed are an anchor rod multi-section reaming machine tool and an application thereof. The machine tool is used cooperatively with an anchor rod drill (M), wherein a hydraulic cylinder (41) is connected to a hydraulic station (1) thr...  
WO/2016/176428A1
A system and method for operating a mud motor in a wellbore. The method includes running the mud motor into the wellbore. A threshold rate of a pressure increase over time is selected. A rate of a pressure increase over time is measured ...  
WO/2016/172381A1
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 includes one or more baffles that...  
WO/2016/172014A1
A drilling stabilizer includes: a drill collar configured to be removably coupled with a component of a drill string; a plurality of blades configured to rotate about a longitudinal axis of the drill collar; and a sleeve over the blades,...  

Matches 801 - 850 out of 13,839