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WO/2018/152636A1 |
Methods and apparatus for identifying downhole dynamics in a drilling system are provided. Acceleration-detecting sensors are mounted at multiple locations near to a drill bit, such as at a drill collar. The sensors may be spaced 90° ap...
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WO/2018/156073A1 |
The present invention relates to a method for generating a drilling pattern for excavating a cavity in rock. The method comprises: - determining a face contour (FC) being a representation of the rock face to be drilled and constituting a...
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WO/2018/156072A1 |
The present invention relates to a method for generating a drilling pattern for excavating a cavity in rock, the drilling pattern determining holes (x) to be drilled in a face (603) of the rock, the determination of the holes (x) to be d...
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WO/2018/148781A1 |
A seat holding assembly for a water delivery nozzle assembly of the type comprising a body defining an internal space which receives and retains therein a water delivery nozzle. The housing has a first part which retains therein a water ...
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WO/2018/146586A1 |
A reaming tool includes a reaming tool body configured to be coupled within a drill string or a string of drilling tools. A plurality of reaming blocks is attached to the reaming tool body at circumferentially spaced apart locations. Eac...
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WO/2018/148618A1 |
Provided are systems and methods for drilling a horizontally-oriented well having a sigmoid-shaped wellbore including an upper sigmoid portion having a downward curving wellbore trajectory and a lower sigmoid portion having an upward cur...
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WO/2018/148300A1 |
A BHA features an MWD tool connected to a running tool supporting a whipstock that is connected to an open hole anchor. The anchor is flow set and after the anchor is set the running tool collets release from the whipstock to allow cemen...
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WO/2018/144169A1 |
A method for directional drilling including defining, by a sliding mode controller, a sliding hypersurface for reducing a trajectory error in one or more error dimensions; determining a current trajectory error between a current trajecto...
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WO/2018/143823A1 |
In an embodiment there is described a method of constructing a subsea well. There is also described an associated unit. The method may comprise the steps of: providing a unit comprising at least one component of a flow control assembly, ...
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WO/2018/143958A1 |
Systems, methods, and computer-readable media for directional drilling based on curvature-based feedback. In some examples, a drilling tool tracks a current position and a current attitude, determines a curvature value for a curved path ...
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WO/2018/144170A1 |
A method for controlling directional drilling including defining a cost function that includes at least one penalty condition associated with a control input. A controller is provided with a current position of the drilling tool and a re...
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WO/2018/144029A1 |
System and methods for geosteering inversion are provided. A downhole tool's response along a path of a wellbore to be drilled through a formation is predicted over different stages of a downhole operation, based on each of a plurality o...
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WO/2018/063542A9 |
A fully rotating bias unit for directional drilling rotates at bit speed while providing proportional control of directional response and steering force. The unit also provides added reliability by having increased redundancy (multiple i...
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WO/2018/140144A1 |
A whipstock/bottom hole assembly (BHA) arrangement including a whipstock, a BHA, an interconnection arrangement releasably securing the whipstock to the BHA, a fluid flow configuration in the BHA, the configuration directed at the interc...
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WO/2018/140143A1 |
A whipstock interconnection body including a whipstock interface, a bottom hole assembly (BHA) interface, the BHA interface including a feature configured to inherently grip the BHA. A whipstock interconnection body including a whipstock...
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WO/2018/138479A1 |
Embodiments comprise a method of removing material at a well, involving progressively jetting heat along a helical path to heat a target material for removal. Embodiments of the method comprise material removal from a downhole well eleme...
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WO/2018/140881A1 |
A lifting mast assembly includes telescoping load bearing arms pivotably coupled to a support base and configured to pivot in unison. Each telescoping arm includes a first arm section and an aligned second arm section. The first arm sect...
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WO/2018/132862A1 |
A mobile, coiled tubing drilling apparatus with a rotary drill head, the apparatus including a non-rotating mast on a mobile platform, the mast having mounted thereon an injector below a coiled tubing reel, the injector defining an opera...
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WO/2018/136033A1 |
A drill bit for downhole electrocrushing drilling is disclosed. A electrocrushing drill bit may include a bit body; an electrode coupled to a power source and the bit body, the electrode having a distal portion for engaging with a surfac...
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WO/2018/132681A1 |
An auto-adjustable directional drilling apparatus comprises: a drive-shaft housing; a drill collar coupled to the drive-shaft housing; a drive shaft passing through the dnve-shaft housing and the drill collar; an active stabilizer fixed ...
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WO/2018/132810A1 |
A system comprises a wellsite including a wellbore location and a BOP positioned at the wellbore location, a drilling rig in the wellsite and including a rig floor and at least one substructure, the substructure having a longitudinal axi...
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WO/2018/129252A1 |
A drilling system includes a drill string for connecting with a drill bit for drilling a borehole, a fixed stabilizer fixed on the drill string, and an active stabilizer including a body and actuators connecting the body and the drill st...
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WO/2018/129278A1 |
A pile driving adapter (10, 10a) includes an upper attachment portion (20, 20a) for selectively attaching the adapter (10, 10a) to a drill head (12) and a lower housing portion (22) including at least a first outer wall (50). The pile dr...
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WO/2018/129241A1 |
A drilling system includes a rotatable string for connecting with a bit for drilling a borehole, and an active stabilizer which includes a body having an outer surface for contacting a wall of the borehole, and a plurality of actuators c...
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WO/2018/120581A1 |
Disclosed is a flexible tube-assisted delivery device for a radial horizontal well, comprising an oil pipe (10), and a rotating device (20) and two impellers (30) connected to a bottom opening of the oil pipe (10). A top surface of the r...
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WO/2018/125616A1 |
Directional drilling is an extremely important area of technology for the extraction of oil and gas from earthen formations. The technology of the present application relates to improved positioning elements for directional drilling asse...
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WO/2018/125071A1 |
A completion sleeve includes a body that defines an inner passage and a window that provides a lateral exit from the inner passage. A deflector is positioned within the inner passage and is pivotable between a stowed position, where the ...
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WO/2018/121815A1 |
The invention relates to a drilling device (1) for hard rock using a fluid, having at least one drill head (2) with a pre-chamber (8) and a mixing chamber (3) where at least one front-facing nozzle (4) and at least one rear-facing nozzle...
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WO/2018/125075A1 |
A shear bolt can include a body having a shear portion. A port in the body may be used for introducing a fluid into the body. A core disposed in the body may include a chamber at least partially surrounded by the shear portion. A fluid p...
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WO/2018/112678A1 |
Disclosed is a pile casting torque multiplier (1), wherein an upper connecting plate (2) is connected to a power head box (21); the upper connecting board (2) is connected to a planetary gear shaft connecting ring (3); a planetary gear s...
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WO/2018/118020A1 |
A method may include drilling a deviated wellbore penetrating a subterranean formation according to bottom hole assembly parameters and surface parameters; collecting real-time formation data during drilling; updating a model of the subt...
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WO/2018/116140A1 |
A drill bit for coupling in use downhole drilling apparatus, the drill bit comprising: an annular coring drill bit that is rotatable to cut a formation bore face to create a core plug, a concentric drill bit that can be repeatedly axiall...
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WO/2018/118523A1 |
A rotary table drive with a top plate and a bottom plate cooperating to define a bore and an adjacent sealed gear housing. A bushing adapter passes through the bore and is configured to receive a bushing to mate with a segment of polygon...
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WO/2018/119007A1 |
A shock tool (120) for reciprocating a drillstring (20) includes an outer housing (130) and a mandrel assembly (150) coaxially disposed in the outer housing (130). The outer housing (130) has a radially inner surface (132) including a pl...
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WO/2018/116318A1 |
Embodiments of the present disclosure, relates to the field of deep sea mining. Particularly, but not exclusively, the present disclosure relates to a system and method of off shore mining for retrieval and extraction of heavy mineral co...
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WO/2018/119151A1 |
A shock tool for reciprocating a drillstring includes an outer housing. The outer housing has a central axis, a first end, a second end opposite the first end, and a passage extending axially from the first end to the second end. In addi...
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WO/2018/111283A1 |
The disclosed embodiments include a rotating survey tool. The rotating survey tool includes a first sensor array that in operation collects a first set of survey measurements during a downhole drilling operation. Additionally, the rotati...
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WO/2018/108662A1 |
The invention relates to methods for determining a soil class, in which an earth drilling is introduced into the ground by means of a ground drilling device with a drill head, wherein a parameter of the ground drilling device and/or an o...
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WO/2018/107557A1 |
Disclosed is a vertical lifting drilling rig, wherein a well frame (2) is formed of multi-stage well frame modules spliced together; a stationary pulley set (10) and a guide pulley (9) are mounted at an upper end of a well frame base sta...
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WO/2018/107712A1 |
A straight hole drilling method for a drilling machine, suitable for drilling an extraction borehole in an underground coal mine. A drill bit (6) is arranged on a section of round drill rod (5) so as to start hole drilling work; after a ...
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WO/2018/106254A1 |
A disclosed drilling method includes: obtaining a formation model representing formation properties to be encountered by a drilling assembly being steered towards a target; identifying at least one path-dependent drilling dynamics model ...
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WO/2018/106287A1 |
A system and method for drilling a borehole (180) using a drilling rig (110) having a rotary drill bit (140) includes monitoring one or more drilling parameters; determining whether the one or more monitored drilling parameters are withi...
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WO/2018/104546A1 |
An unmanned wellhead platform (1) (UWP) comprising a jacket (10) designed and adapted to be supported on the seabed and projecting above the sea level is shown. The unmanned wellhead platform (1) includes a topside installed on top of th...
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WO/2018/103919A1 |
The invention relates to a drilling tool and a method for producing a bore in the ground, in which method ground material is carried away by a removal device on the underside of a main body of the drilling tool, flushing air is supplied ...
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WO/2018/106347A1 |
A coupling system includes a lower marine riser package having a connector at a bottom end and at least one blowout preventer pressure control element coupled to a wellhead and having a connector at an upper end. Explosively frangible fa...
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WO/2018/106835A1 |
A skid-mounted chemical and hydrate remediation system including a subsea separator is described for use in the event of a hydrate plug with chemical injection. This system comprises a manifold which communicates between a subsea pipelin...
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WO/2018/106255A1 |
A disclosed drilling system includes a drill string assembly having subsystem inputs that control ROP and other performance parameters; and a processing system that provides automated uncertainty mitigation of a model for controlling the...
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WO/2018/104547A1 |
The invention proposes a method and devices that can be used in the method for trenchless laying of a cable (1) in the ground (13), in which method vertical multifunction bores (3) are created along a drilling line (4) in the ground (13)...
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WO/2018/101960A1 |
It may be required at a well site to create a lateral wellbore from a primary wellbore. A dissolvable whipstock assembly may be positioned within a primary wellbore to deflect a mill or drill bit to create a secondary wellbore. The disso...
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WO/2018/096160A1 |
A method for processing a plurality of surface-wells arranged in a well cluster on an offshore wellhead platform is provided. Each surface-well comprises a conductor having an upper part, the upper part of two or more of the conductors b...
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