|| List of recent Drilling System-related patents
| Bearing assemblies and apparatuses including tilting superhard bearing elements, and motor assemblies using the same|
Embodiments relate to tilting superhard bearing element bearing assemblies and apparatuses. The disclosed assemblies/apparatuses may be employed in downhole motors of a subterranean drilling system or other mechanical systems.
| Direct drive fluid pump for subsea mudlift pump drilling systems|
A subsea mudlift pump includes a pressure sealed housing disposed in a body of water in which a wellbore is being drilled by a drilling rig disposed above the surface of the body of water. A motor (44) is configured to generate linear motion is coupled to at least one piston (46) disposed within the housing such that operation of the motor causes linear motion of the piston within the housing.
| Rotary steerable drilling system for drilling a borehole in an earth formation|
A bottom hole assembly for drilling a deviated wellbore is provided. The bottom hole assembly includes a drill bit and a connected rotary steerable drilling system, or rss.
| Dual drive directional drilling system|
One aspect of the present disclosure relates to a dual drive drilling system having a plurality of drill rods that make up a drill string and a steering element for controlling the path of the drill string. The dual drive drilling system also includes a drill bit located near the end of the drill string, a first rotational drive for controlling the rotation of a steering element, and a second rotational drive for controlling the rotation of a drill bit.
| Systems and methods for directional drilling|
An underground directional drilling system can comprise a plurality of elongated dual-shaft segments coupled together end-to-end in a drilling string. The segments include an inner shaft that is independently rotable relative to an annular outer shaft, with the inner shafts being coupled together and the outer shafts being coupled together.
| Dual gradient drilling system|
A dual gradient drilling system comprises a primary riser that is coupled to a drilling rig and a subsea wellhead and an auxiliary riser that is coupled to the drilling rig and to the primary riser by a fluid conduit that is disposed at a point between the drilling rig and the wellhead. The fluid conduit provides fluid communication between the primary riser and the auxiliary riser.
| Drilling tool system and method of manufacture|
A drilling system includes a first section of a drilling tool having a collar configured to hold internal components of the first section. The drilling system also includes a second section of the drilling tool configured to be coupled with the first section in a specific orientation relative to the first section.
|Apparatus, system, and method for controlling the flow of drilling fluid in a wellbore|
A drilling system includes a drill string extending through a bop and a drilling fluid discharge coupling mounted to the bop. In addition, the drilling system includes a drilling fluid control system configured to control a pressure or flow rate of a drilling fluid flowing through the discharge coupling.
|Drilling bottom hole assembly having wireless power and data connection|
A bottom hole assembly (bha) configured for use in a drill string of a wellsite drilling system. The bha includes a measuring-while-drilling (mwd) module, a wireless power and data connection, and a rotary steerable system (rss).
|Gas injection for managed pressure drilling|
Injection of gas into a managed pressure drilling system to provide for operation of the drilling system in a pressure window defined by the pore pressure of a formation being drilled and a fracture pressure of the formation. The gas is injected through gas injection ports and drilling fluids are allowed to flow between the drilling annulus and the gas injection system though a plurality of flow ports that are disposed vertically below the gas injection ports in the borehole being drilled.
|Floating structure and riser systems for drilling and production|
An offshore well system for a subsea well, including a floating platform, a drilling riser system connected with the well for drilling operations, and a production riser system connected with the well for production operations. The drilling system also includes a riser tension system.
|Downhole robotic micro-drilling system|
The process of micro-holes can replace the process known as “fracking”. Fracking is being employed; however the process is being reviewed due to safety of human life.
|Drill with remotely controlled operating modes and system and method for providing the same|
The present invention relates to a drilling system with a multi-function drill head used in, among other applications, oil and gas drilling. The system is used to enhance the effective permeability of an oil and/or gas reservoir by drilling or cutting new structures into the reservoir.
|Managed pressure drilling system having well control mode|
A method of drilling a subsea wellbore includes drilling the subsea wellbore and, while drilling the subsea wellbore: measuring a flow rate of the drilling fluid injected into a tubular string; measuring a flow rate of returns; comparing the returns flow rate to the drilling fluid flow rate to detect a kick by a formation being drilled; and exerting backpressure on the returns using a first variable choke valve. The method further includes, in response to detecting the kick: closing a blowout preventer of a subsea pressure control assembly (pca) against the tubular string; and diverting the flow of returns from the pca, through a choke line having a second variable choke valve, and through the first variable choke valve..
|Drilling composition, process for its preparation, and applications thereof|
The present invention additionally relates to the use and preparation of the drilling composition, to a drilling system, to a process for making a borehole, to a process for conveying cuttings, to a process for treating a drill head, and to a process for production of oil and/or gas.. .
|Friction reduction device for drill pipe|
A device to couple to a rotatable drill pipe to control pressure of a drilling system is disclosed. The device includes an inner surface to wrap around a portion of a rotatable drill pipe and having an inner diameter.
|High-speed triple string drilling system|
A drilling system for boring into ground includes a bottom hole assembly having a rotatable casing shoe, an independently rotatable driveshaft disposed within the casing shoe, and a bearing housing interdisposed between the driveshaft and the casing shoe to control a distance between a centerline of the driveshaft and a centerline of the casing shoe. The driveshaft includes a bit disposed at a distal end thereof, extending beyond the casing shoe distal end.
|Systems and methods for sonic subsurface material removal|
A system for removing desired subsurface materials. A drilling system has a sonic drill head assembly capable of rotating a drill string and transmitting oscillating forces to the drill string.
|Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element|
A subterranean drilling system may include a drill string and a rotary drill bit coupled to the drill string. The rotary drill bit may include a bit body and a cutting element coupled to the bit body, with the cutting element being structured to rotate in response to torque applied to the cutting element.
The chemical solvent disclosed includes a means for cleaning and maintaining industrial process components including one or more of a valve, a pump, a pipeline, and a drilling system.. .
|Drilling system with flow control valve|
A technique facilitates drilling of wellbores with a steerable system having a plurality of pads which may be selectively actuated in a lateral direction to apply a side force. Application of the side force is used to steer a drill bit.
|Downhole drilling force assembly and method of using same|
A drilling assembly, drilling system and method is provided. The drilling system includes a drilling rig with a drill string deployable therefrom and drivable thereby.
|Methods of operating a bearing apparatus including tilting pads|
Embodiments of the invention relate to tilting pad bearing assemblies and apparatuses. The disclosed tilting pad bearing assemblies and apparatuses may be employed in downhole motors of a subterranean drilling system or other mechanical systems.
|Directional drilling system|
A technique facilitates drilling of wellbores or other types of bore holes in a variety of applications. A steerable system or other well tool is designed with a plurality of actuators which are positioned to provide controlled steering during a drilling operation.
|Instrumented drilling system|
A technique facilitates drilling of wellbores or other types of bore holes in a variety of applications. A steerable system is designed with a main shaft coupled to a drill bit shaft by a universal joint to provide steering functionality.
|Systems, methods, and devices for frozen sample distribution|
A drilling system including a motor that produces a sonic, linear oscillatory motion is provided for removing a frozen biological sample from a stored frozen specimen and methods of use thereof without thawing the remainder of the specimen. The stator and slider assembly is operated by a servo controller which can communicate and be programmed through a port of a pc equipped with software..
|Systems and methods for detecting drillstring loads|
A drilling system comprises a drillstring including a dill bit, a bottomhole assembly coupled to the drill bit, and a plurality of interconnected tubular members coupled to the bottomhole assembly. A first tubular member includes a communication link having a first annular inductive coupler element disposed in an annular recess in a first end, a second annular inductive coupler element disposed in an annular recess in a second end, and a cable coupling the first annular inductive coupler element to the second annular inductive coupler element.
|Drilling system, biasing mechanism and method for directionally drilling a borehole|
A drilling system for directional drilling of a borehole includes a biasing mechanism having a pivot associated with a lower bearing assembly, an offset mechanism associated with an upper radial bearing assembly, and a toolface controller, whereby the angular relationship of a drill bit and its toolface angle may be actively managed.. .
|Drill bits with axially-tapered waterways|
Implementations of the present invention include drilling tools having axially-tapered waterways that can increase flushing and bit life, while also decreasing clogging. According to some implementations of the present invention, the waterways can be radially tapered in addition to being axially tapered.
|Core drilling tools with retractably lockable driven latch mechanisms|
Implementations of the present invention include a core barrel assembly having a driven latch mechanism. The driven latch mechanism can lock the core barrel assembly axially and rotationally relative to a drill string.
|Bearing apparatuses and motor assemblies using same|
Bearing assemblies and apparatuses are disclosed. Such bearing assemblies may be employed in bearing apparatuses for use in downhole motors of a subterranean drilling system or other mechanical systems.
A drilling system including a drill string (12) which extends into a borehole (10), and a well closure system which contains fluid in the annular space (16) in the borehole around the drill string, the well closure system having a side bore whereby controlled flow of fluid out of the annular space in the borehole around the drill string is permitted, the side bore being connected to fluid return line (28) which extends from the side bore to a fluid reservoir (34), there being provided in the fluid return line a valve (30a) which is operable to restrict flow of fluid along the fluid return line to variable extent, and a flow meter (32) operable to measure the rate of flow of fluid along the fluid return line, the flow meter being located between the valve and the side bore, wherein a filter (40) is provided between the flow meter and the side bore, the filter including a plurality of apertures which have a smaller cross-sectional area than the smallest fluid flow lines in the flow meter.. .
|Modeling and designing of well drilling system that accounts for vibrations|
A method and apparatus associated with the production of hydrocarbons is disclosed. The method, which relates to modeling of drilling equipment, includes constructing one or more design configurations for at least a portion of a bottom hole assembly (bha) and calculating results from each of the one or more design configurations.
|Downhole surveying utilizing multiple measurements|
Certain embodiments described herein provide an estimate of the magnetic interference incident upon a drilling system using multiple magnetic sensors within a downhole portion of the drilling system in a first wellbore. Certain embodiments utilize the magnetic measurements to determine an axial interference resulting from one or more magnetic portions of the downhole portion and to provide an estimate of a relative location of a second wellbore spaced from the first wellbore..
|Valve for communication of a measurement while drilling system|
A valve for communication of a measurement while drilling system includes a first structure having a central portion and one or more elongate portions radially extending from the central portion, and a second structure having one or more portions which substantially bound a central orifice region and one or more elongate orifice regions radially extending from the central orifice region. At least one of the first structure and the second structure is configured to be rotated about a rotation axis to produce a relative rotation between the first structure and the second structure such that a flow path through which mud can flow varies as the at least one of the first structure and the second structure rotates about the rotation axis.
|Controlling vibrations in a drilling system|
A method for controlling vibrations in a drilling system, the drilling system including an elongate body extending from surface into a borehole formed in an earth formation, and an associated drive system for driving the elongate body, the drive system comprising a torque controller, the method comprising obtaining a model of the drilling system; obtaining at least one input parameter for the model that relates to an uphole parameter of the drilling system; operating the drive system to provide a drive torque to the elongated body; obtaining at least one output parameter from applying the model using the at least one input parameter, the at least one output parameter including at least one modelled downhole parameter of rotational motion; using the modelled downhole parameter of rotational motion in the torque controller for determining an adjustment to the drive torque, so as to control vibrations; as well as a drilling system comprising a torque controller, which torque controller is adapted to use the modelled downhole parameter of rotational motion for determining an adjustment to the drive torque.. .
|Electrochemical drilling system and process for improving electrical porosity of etched anode foil|
A process for creating porous anode foil for use in an electrolytic capacitor of an implantable cardioverter defibrillator is provided. The process includes electrochemical drilling a plurality of etched metal foils in sequence one after the other in a bath containing electrochemical drilling (ecd) solution initially having a ph of less than 5.
|Methods and apparatus for mechanical and thermal drilling|
Methods and apparatus for excavation of a borehole in a geological formation are provided. Such methods may include providing a thermal system capable of providing substantially hot fluid, and comprising at least one jet nozzle, providing a mechanical drilling system comprising a drill bit, directing the substantially hot fluid through the jet nozzle towards the geological formation causing an altered portion of geological formation to form, and removing the altered portion using the drill bit, thereby creating cuttings and producing a borehole in the geological formation..
|Subsea casing drilling system|
In one embodiment, a casing bit drive assembly may be used with a casing drilling system. The casing bit drive assembly may include one or more of the following: a retrievable drilling motor; a decoupled casing sub; a releasable coupling between the motor and casing bit; a releasable coupling between the motor and casing; a cement diverter; and a casing bit..
|Continuous rotary drilling system and method of use|
A drilling system has a drill string that is made up of tubular segments of coiled tubing joined together by connectors. The connectors can be selectively changed between locked and unlocked configurations.
|Rock drilling rig and method for transmission of rock drilling rig|
A rock drilling rig and to a method for transmission thereof is provided. The rock drilling rig includes a carriage that is movable by drive equipment in a mine.
|Wellhead system with gasket seal|
An offshore well system for a subsea well. The system includes a floating platform, an external riser and an internal riser nested within the external riser.
|Mud pulse telemetry mechanism using power generation turbines|
A method and apparatus of creating a mud pulse for a drilling system, comprising creating a mud flow through the drilling system and creating at least one pressure pulse in the mud flow with a power generation mechanism.. .
|High energy tubular shear|
A high energy tubular shear is connectable within a drilling system and includes a body forming a bore through which a tubular is disposed, a cross-bore intersecting the bore, opposing cutters moveably positioned in the cross-bore on opposite sides of the bore, and the each cutter in hydraulic communication with a respective hydraulic intensifier.. .
|Internal tubing cutter|
Implementations of the present invention include an internal tubing cutter including ramp surface(s) and roller that cause cutters to move linearly between retracted and deployed positions. The linear actuation of the cutters can allow for more robust cutting and increased cutting efficiency.
|Well drilling systems and methods with pump drawing fluid from annulus|
A well pressure control method can include regulating pressure in a wellbore by operating a suction pump which draws fluid from an annulus formed between a drill string and the wellbore, the fluid entering the suction pump proximate the earth's surface. Another well pressure control method can include regulating pressure in a wellbore by operating a suction pump which applies suction pressure to an annulus formed between a drill string and the wellbore.
|Directional drilling systems|
A directional drilling system for use in drilling a wellbore can include a bit deflection assembly with a bit axis deflection mechanism which applies a deflecting force to a shaft connected to a drill bit. The deflecting force may deflect the shaft, without being reacted between the deflection mechanism and the drill bit.
|Drilling system and a device for assembling and disassembling pipe stands|
A system for storing one or more tubulars comprises a drilling deck including a hole offset from a wellbore centerline. In addition, the system comprises a rack unit coupled to the drilling deck and extending downward from the hole in the drilling deck.
|Remotely operable underwater drilling system and drilling method|
A drilling system including a drill head. The drill head defines a drill head bore and includes a drill head bore closure device.
|Systems and methods for managing pressure in a wellbore|
A method for drilling a subsea well from a rig through a subsea wellhead below the rig includes employing a single gradient or dual gradient drilling system that includes a drill string that extends from the rig into the well and surface mud pumps for pumping drilling fluid through the drill string and into a well annulus of the well. The drilling system includes a subsea rotating device for conducting the drilling fluid from the well annulus and through a solids processing unit.
|Tilting pad bearing apparatuses and motor assemblies using the same|
Embodiments of the invention relate to tilting pad bearing assemblies and apparatuses. The disclosed tilting pad bearing assemblies and apparatuses may be employed in downhole motors of a subterranean drilling system or other mechanical systems.
|Top drive with automatic anti-rotation safety control|
An automatic drilling system includes a top drive comprising a proximity sensor disposed in a housing thereof. A portion of the top drive is coupled to elevators through load transfer springs such that axial loading applied to the elevators results in relative movement between a link load collar and a load ring.
|Bearing assemblies, and bearing apparatuses using the same|
Various embodiments relate to bearing assemblies configured to enable removal and replacement of superhard bearing elements, and bearing apparatuses that may utilize such bearing assemblies. The disclosed bearing assemblies may be used in a number of applications, such as downhole motors in subterranean drilling systems, directional drilling systems, roller-cone drill bits, and many other applications.
|Horizontal directional drilling area network and methods|
A drilling area network hub is located proximate to a drill rig and includes an uphole transceiver in bidirectional communication with a downhole transceiver by utilizing the drill string as an electrical conductor. Certain information is collected including rig-based and/or location information.
|Tubular engaging device and method|
Present embodiments are directed to a device for a top drive drilling system. The device includes a movable sleeve configured to be disposed around at least a portion of a sub.
|Offshore well drilling system with nested drilling risers|
An offshore well drilling system for drilling a subsea well, including a floating platform, an external riser extending from the subsea well, and an internal riser extending from the subsea well to the platform. The internal riser is nested within the external riser.
|X-ray microscopy for characterizing hole shape and dimensions in surgical needles|
A novel method of characterizing laser drilled boreholes is disclosed. The method uses x-ray microscopy for dimensional characterization.
|Reverse circulation drilling system, apparatus and method|
In one embodiment, the present invention provides a reverse circulation drilling apparatus which comprises a concentric dual wall drill pipe, having a first threaded end, a second threaded end, an outer pipe and an inner pipe captured in a concentric arrangement within the outer pipe and defining an annulus therebetween. The inner pipe defines an inside passage, which is not in fluid communication with the annulus.
|Use of downhole pressure measurements while drilling to detect and mitigate influxes|
A well drilling system can include a hydraulics model which determines a modeled fluid friction pressure and a calibration factor applied to the modeled friction pressure, and a flow control device which is automatically controlled in response to a change in the calibration factor. A well drilling method can include drilling a wellbore, a fluid circulating through the wellbore during the drilling, determining a calibration factor which is applied to a modeled fluid friction pressure, and controlling the drilling based at least in part on a change in the calibration factor..
|Ultra high viscosity pill and methods for use with an oil-based drilling system|
A fluid pressure transmission pill (fptp) having an ultra-high viscosity for use in association with hydrocarbon drilling and exploration operations, particularly, managed pressure drilling (mpd) operations, is described. The ultra-high viscosity pill is a weighted pill composition that includes a hydrocarbon fluid, a thixotropic viscosifying agent, one or more activators, an emulsifier/wetting agent, a fluid loss control additive, and a weighting material.
|Dissipative surfactant aqueous-based drilling system for use in hydrocarbon recovery operations from heavy oil and tar sands|
A water-based drilling fluid which includes an aqueous fluid and a water-soluble dissipative surfactant composition is described, wherein the dissipative surfactant composition includes at least one fatty acid or ester derivative of a plant or vegetable oil. Also described are methods of using such aqueous-based drilling fluids including the dissipative surfactant composition as described in hydrocarbon recovery operations associated with oil/tar sand, where such fluids act to increase the dispersant qualities of hydrocarbons within the oil/tar sand, and where such fluid exhibit a reduced coefficient of friction..
|Interface for controlling and improving drilling operations|
A system including a display for displaying a comparison between a calculated energy value and a desired energy value of a drilling system, the display including a first portion defining a first potential operational issue, a second portion defining a second potential operational issue, a third portion defining a third potential operational issue, and a fourth portion indicating the comparison between the calculated energy value compared and the desired energy value of the drilling system.. .
|Riserless, pollutionless drilling system|
The invention provides a drilling system for drilling subsea wells from a floating mobile offshore drilling unit (modu), the system comprising a subsea bop. The system is distinctive in that the subsea bop has relative small weight and size, the system includes no marine riser but the system comprises: flexible choke and kill lines arranged between the subsea bop and the modu, means for drill string guidance and cleaning, for guiding when inserting or taking out a drill string from the bop and for drill string cleaning when pulling the drill string out from the bop, means for controlled leakage of seawater into a recovery funnel arranged below the means for drill string cleaning but above the bop, and means for return from the recovery funnel to the modu of drilling fluid and seawater leaked into the recovery funnel..
|Micro-sonic density imaging while drilling systems and methods|
Various micro-sonic density imaging-while-drilling systems and methods are disclosed. In at least some forms, the micro-sonic logging tool is embodied in a drill collar having at least one stabilizer blade.
|Boring tool control using remote locator|
A drilling system performs underground boring using a drill rig and a boring tool which is configured for moving through the ground under control of the drill rig to form an underground bore. A monitoring arrangement, forming part of the system, includes a detection arrangement at the drill rig for monitoring at least one operational parameter to produce a data signal relating to at least one of a utility to be installed in the underground bore, the drill rig and the boring tool.
|Eccentric sleeve for directional drilling systems|
A drill bit includes a bit body configured to rotate about a bit rotational axis and a sleeve coupled to the bit body. The sleeve is coupled to the bit body on an uphole portion of the bit body.
|Drill members for mine roofs|
A drilling system for drilling vertical holes in a mine roof includes a chuck configured to be driven in rotation by a motorized drill head. The chuck is cylindrical has a bore having a first polygonal inside perimeter.
|Preemptive setpoint pressure offset for flow diversion in drilling operations|
A method of controlling pressure in a well can include transmitting an instruction to change flow through an annulus formed radially between a drill string and a wellbore, and adjusting a pressure setpoint in response to the transmitting. A well drilling system can include a flow control device which varies flow through a drill string, and a control system which changes a pressure setpoint in response to an instruction for the flow control device to change the flow through the drill string.
|High productivity core drilling system|
High productivity core drilling systems include a drill string, an inner core barrel assembly, an outer core barrel assembly, and a retrieval tool that connects the inner core barrel assembly to a wireline cable and hoist. The drill string comprises multiple variable geometry drill rods.
|System and method for torque stabilization of a drilling system|
A drill string suitable for use in directional drilling of a borehole, comprising a rotatable shaft at the leading end of which is a drill bit, and wherein the shaft comprises a variable friction inducing member, which provides rotational friction by physical contact with an inside face of the borehole, the friction inducing member being arranged to exert a first rotational frictional force when the shaft in the vicinity of the member is substantially rotating and a second rotational frictional force when the shaft in the vicinity of the member is substantially not rotating, wherein the first rotational frictional force is less than the second rotational frictional force.. .