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Drilling System patents



      
           
This page is updated frequently with new Drilling System-related patent applications. Subscribe to the Drilling System RSS feed to automatically get the update: related Drilling RSS feeds. RSS updates for this page: Drilling System RSS RSS


System and method for detecting hydrogen sulfide in a formation sampling tool

Schlumberger Technology

System and method for detecting hydrogen sulfide in a formation sampling tool

Drilling system and method of operating a drilling system

Managed Pressure Operations Pte.

Drilling system and method of operating a drilling system

Drilling system and method of operating a drilling system

Tucc Technology

Dissipative surfactant aqueous-based drilling system for use in hydrocarbon recovery operations from heavy oil and tar…

Date/App# patent app List of recent Drilling System-related patents
06/25/15
20150176333
 Advanced drilling systems and methods patent thumbnailAdvanced drilling systems and methods
New systems and methods capable system for drilling are disclosed. An example system can include a vertically-moving platform supporting a gyrotron capable of transmitted electromagnetic energy down a waveguide such that, as the vertically-moving platform moves downward, energy transmitted by the gyrotron through the waveguide will progressively drill a borehole in the earth..
06/18/15
20150167458
 System and  detecting hydrogen sulfide in a formation sampling tool patent thumbnailSystem and detecting hydrogen sulfide in a formation sampling tool
A drilling system includes a downhole sampling tool configured to be placed in a wellbore of a subterranean formation and configured to pump formation fluid from the subterranean formation into the downhole sampling tool. The downhole sampling tool includes internal components configured to route the formation fluid through the downhole sampling tool and drill collars configured to hold the internal components of the downhole sampling tool.
Schlumberger Technology Corporation
06/18/15
20150167415
 Drilling system and  operating a drilling system patent thumbnailDrilling system and operating a drilling system
A drilling system including a riser, a pressure vessel, a source of pressurised gas, and a main flow line which extends from the riser to the pressure vessel, the pressure vessel having a liquid inlet port connected to the main flow line, a gas inlet port connected to the source of pressurised gas, a liquid outlet port located in a lowermost portion of the pressure vessel, and a gas outlet port located in an uppermost portion of the pressure vessel.. .
Managed Pressure Operations Pte. Ltd.
06/18/15
20150166866
 Dissipative surfactant aqueous-based drilling system for use in hydrocarbon recovery operations from heavy oil and tar sands patent thumbnailDissipative 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..
Tucc Technology, Llc
06/11/15
20150159438
 Vibratory drilling system and tool for use in downhole drilling operations and a  manufacturing same patent thumbnailVibratory drilling system and tool for use in downhole drilling operations and a manufacturing same
A vibratory drilling tool for use coupling to a drill string in a borehole in downhole drilling operations has a tool body having a fluid flow path extending along a longitudinal axis there through, a first pin end and an opposite box end. A cam body portion extending longitudinally along the length of said tool has a generally smooth cam arc section on an opening side with at least one elongated flat surface extending longitudinally along a closing side of the cam body portion from a pin end tapering shoulder to a box end tapering shoulder.
Drill Better ,llc
06/04/15
20150152723
 Displaceable components in drilling operations patent thumbnailDisplaceable components in drilling operations
A well drilling system can include a drilling tool with at least one component which is displaced by a material that changes shape. The material can be a shape memory material.
Halliburton Energy Services, Inc.
06/04/15
20150152688
 Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element patent thumbnailCutting 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.
Us Synthetic Corporation
05/28/15
20150144404
 Bearing assemblies and apparatuses including tilting superhard bearing elements, and motor assemblies using the same patent thumbnailBearing 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.
Us Synthetic Corporation
05/21/15
20150136492
 Dual circulation drilling system patent thumbnailDual circulation drilling system
A ground drill system (10) has a drill string 14 which forms first and second mutually isolated fluid paths (16 and 18) respectively. The drill string (14) has an up hole end (20) coupled to a dual circulation rotation head (22) and a down hole end (24) which is coupled to a drilling tool (12).
05/21/15
20150136490
 Steerable well drilling system patent thumbnailSteerable well drilling system
A steerable dual drilling bit having an outer reamer bit defining a central opening and having an inner core removal bit being rotatably driven by a mud motor that is supported within a tubular housing by the outer reamer bit. The dual drilling bit is capable of being threaded to the bit box of a rotary drill string or a straight or bent housing drilling system.
05/14/15
20150131410

Wellbore telemetry and noise cancelation the same


A method of signal processing includes providing at least a first pressure sensor and a second pressure sensor spaced in a drilling system and using an algorithm to separate the downwardly propagating waves from the upwardly propagating waves. In one or more examples, an algorithm may include determining a velocity of pressure signals in a wellbore, time-shifting and stacking pressure signals from at least the first pressure sensor and the second pressure sensor to determine a downwardly propagating noise signal, and subtracting the downwardly propagating noise signal from at least the signal from the first pressure sensor..
05/14/15
20150129236

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.
05/14/15
20150129233

Assembly and system including a surge relief valve


A fluid control system may be included within a blowout preventer subsea control pod of a subsea drilling system. The fluid control system includes a primary fluid flow path including an inlet and an outlet, the inlet connectable to a fluid supply source, the outlet connectable to a component controllable by the fluid supply source, a surge relief valve connected within the primary fluid flow path between the inlet and the outlet, and a control valve connected within the primary fluid flow path between the surge relief valve and the outlet such that hydraulic pressure surges received within the primary fluid flow path are dampened, at least partially, by the surge relief valve before received by the control valve..
05/07/15
20150127040

Cranial drill system


The invention concerns a cranial drill system comprising one or more surgical drill elements for drilling into the brain. The invention also concerns a cranial drilling system comprising a surgical drill element for drilling into the skull and an element for penetrating the dura.
Reinshaw Plc
05/07/15
20150122549

Hydraulic tools, drilling systems including hydraulic tools, and methods of using hydraulic tools


A hydraulic tool includes a rotor rotatably disposed within a stator. At least an inner portion of the stator and/or at least an outer portion of the rotor is configured to be installed in a drill string in either of two inverted orientations along a longitudinal axis of the hydraulic tool.
Baker Hughes Incorporated
05/07/15
20150122548

Method and system for directional drilling and coupling sub


The present invention provides a system and method for directional drilling of a borehole in a formation along a predetermined trajectory. The method comprising the steps of: providing a directional drilling system, comprising a rotatable drill string comprising a first drill string section and a second drill string section; a drill bit connected to a downhole end of the drill string; and a coupling sub comprising a first end connected to the first drill string section; a second end connected to the second drill string section; a hinge member between the first end and the second end allowing hinging of the second end relative to the first end; and locking means, operable between a hinge mode and a locking mode for locking the hinge member to prevent hinging of the second end relative to the first end; operating the directional drilling system with the locking means in the locking mode to drill a substantially straight section of the trajectory; and operating the directional drilling system with the locking means in the hinge mode to drill a curved section of the trajectory..
Shell Oil Company
04/23/15
20150107907

Systems and methods to reduce oscillations in magnetic couplings


A drilling system includes a magnetic coupling and an oscillation absorber. The magnetic coupling has a rotor that rotates about an axis of rotation.
Baker Hughes Incorporated
04/23/15
20150107902

Mud actuated drilling system


A technique facilitates drilling of a variety of a wellbores. The technique comprises providing a directional drilling system with a drill bit mounted at the end of a collar having an internal flow passage for drilling fluid.
Schlumberger Technology Corporation
04/16/15
20150101864

Intelligent reamer for rotary/sliding drilling system and method


A downhole intelligent reamer controller detects the difference between rotary drilling and sliding drilling, responds appropriately and quickly to multiple changes between rotary drilling and sliding drilling that may occur several times each stand of pipe. Additional controls prevent deployment of reamer members at inappropriate times such as when drilling out cement, testing, and running in and out of the wellbore.
04/09/15
20150096805

Downhole closed loop drilling system with depth measurement


A method, system and drilling apparatus for directional drilling are disclosed. A drill bit is located at a downhole end of a drill string in a borehole.
Baker Hughes Incorporated
04/02/15
20150090498

Drilling system


Rock strength is estimated during drilling using a rate of penetration model or a modified mechanical specific energy models. The rock strength estimate can be used in conducting further drilling, for example by a drilling system.
04/02/15
20150090496

Horizontal directional drilling system including sonde position detection using global positioning systems


A locator device and methods of use are disclosed. The locator device includes a first locating system configured to generate to sense an electromagnetic field emanating from a sonde associated with a drill head, and a second locating system including a global positioning system.
Vermeer Manufacturing Company
03/26/15
20150083493

Drilling system and associated monitoring, controlling, and predicting vibration in an underground drilling operation


A drilling system and associated systems and methods for monitoring, controlling, and predicting vibration of a drilling operation. The vibration information can include axial, lateral or torsional vibration of a drill string..
03/26/15
20150083492

Drilling system and associated monitoring, controlling, and predicting vibration in an underground drilling operation


A drilling system and associated systems and methods for monitoring, controlling, and predicting vibration of a drilling operation. The vibration information can include axial, lateral or torsional vibration of a drill string..
03/19/15
20150081221

Drilling system failure risk analysis method


There is disclosed a method for assessing risk associated with drilling a section of a wellbore in a formation using a drilling system, comprising: providing a probabilistic model for the risk of the drilling system triggering a failure mode during drilling; and assessing the risk of the drilling system triggering one of said failure modes during drilling of the section based on said model. A further such method comprises: defining the critical control parameters for the drilling system; and identifying one or more failure modes of the drilling system associated with each critical control parameter which may arise during drilling the section of the formation..
03/05/15
20150063932

System and forming perforations in a barrel section


A drilling system may include a plurality of robotic drilling units. Each one of the robotic drilling units may include a drill end effector positioned inside a barrel section.
The Boeing Company
02/26/15
20150056030

Automated inspection system


A drilling system includes a drilling machine, configured to drill a hole in a work piece along a drilling axis, a deployment mechanism, attached to the drilling machine, a measuring probe, attached to the deployment mechanism, and a controller, coupled to the drilling machine, the measuring probe, and the deployment mechanism. The measuring probe is configured to produce a signal indicative of an actual geometric parameter of the hole when inserted therein.
The Boeing Company
02/19/15
20150047906

Efficient and eco-friendly oil drilling system and method


An efficient and eco-friendly oil drilling system includes at least one storage tank, an initial surface drilling system and a subsequent drilling system, a plurality of rig mud pumps, and a drilling rig. The plurality of rig mud pumps is in fluid communication with the drilling rig as the drilling rig is in fluid communication with the at least one storage tank.
02/19/15
20150047905

Drilling systems and multi-faced drill bit assemblies


A drill bit assembly that includes a shank including a shank axis, first and second ends, a drill bit seat at the second end and a central flow bore extending axially from the first end. Additionally, the assembly includes a sleeve disposed about and translatable axially relative to the shank and a drill bit rotatably coupled to the sleeve.
National Oilwell Dht, L.p.
02/12/15
20150041221

Uncoupling device for connecting a drilling tool to the end of a drilling column and a drilling system comprising such an uncoupling device


Collection device for connecting a drilling tool, such as a bit, to the end of a drilling column, in which the connection device comprises a first element, with a first end, intended to be connected to the end of the drilling column, and a second element, with a second end, intended to be connected to the drilling tool, in which the second element is fixed to the first element so as to allow a translational movement in a longitudinal direction in order to make it possible to change the distance between the first end and this second end, characterized in that the connection device comprises a “pusher” structure for transmitting a thrust force from this first element towards the second element, comprising a set of “belleville” washers making it possible to ensure that said thrust force, from the first element toward the second element, is substantially constant in any position of the second element with respect to the first element.. .
Tercel Ip Ltd.
02/12/15
20150041218

Axis offset cam tool for reverse circulation exploration drilling systems and use thereof


An off-axis “cam” drilling tool is provided. The off-axis “cam” drilling tool includes an outer tubing having a throughbore therein, an inner tubing having a throughbore therein, the inner tubing being configured to be inserted within the throughbore of the outer tubing.
02/12/15
20150041213

Gas injection while drilling


Injection of gas into a managed pressure drilling system to provide for operation of the drilling system in a downhole pressure window defined by the pore pressure of a formation being drilled and a fracture pressure of the formation. Gas injection being controlled so as to produce the desired downhole pressure without causing large oscillations in borehole pressure..
Schlumberger Technology Corporation
02/05/15
20150034388

Downhole motor coupling systems and methods


A drilling system includes a drillstring and a power section further including a stator having a stator axis and a rotor within the stator. The rotor rotates eccentrically within the stator in response to fluid flowing therebetween.
National Oilwell Varco, L.p.
02/05/15
20150034327

Drilling system having slot for underwater storage of bop assembly


A drilling system includes a derrick installed on a platform of a stationary floating structure. An activity forms a borehole in a sea-bed, and carries out installation of a casing pipe assembly and a bop assembly in the formed borehole.
Hyundai Heavy Industries Co., Ltd
01/22/15
20150021092

Drilling system and method


A system for drilling a subterranean bore at a subsea location is provided, the system comprising a drilling unit for location on the seabed and remotely operable from the water surface to drill a bore using a drill string; a transport assembly moveable between the water surface and the drilling unit when at the location on the seabed, wherein the transport assembly comprises a receptacle for receiving a downhole tool; first transfer means for transferring a first downhole tool from the drill string to the transport assembly; and second transfer means for transferring a second downhole from the transport assembly to the drill string; whereby the first and second transfer means are operable to recover from the drill string a first downhole tool and deliver to the drill string a second downhole tool in a single deployment of the transport assembly from the water surface to the drilling unit. A method for drilling a subterranean bore at a seabed location comprises providing a drilling unit on the seabed; conducting a drilling operation using a drill string by remote operation of the drilling unit from a surface location, the drill string having therein a first downhole tool; transporting a second downhole tool from the surface to the drilling unit by means of a transport assembly; recovering the first downhole from the drill string to the transport assembly; transferring the second downhole tool from the transport assembly to the drill string; transporting the first downhole tool to the surface by means of the transport assembly; and continuing the drilling operation using the second downhole tool.
Fugro Seacore Limited
01/15/15
20150014064

Core drilling tools with external fluid pathways


Implementations of the present invention include a core barrel assembly including external fluid pathways extending generally axially long the outer surface of the core barrel assembly. The one or more external fluid pathways can allow for increased fluid flow around a latch mechanism.
Longyear Tm, Inc.
01/15/15
20150014058

Drilling monitoring and displaying drilling parameters for a drilling operation of a drilling system


A drilling system and method for monitoring drilling parameters for an underground drilling operation.. .
01/08/15
20150008045

Steerable drilling system


A steerable system comprises a fluid powered motor 10 having a rotor 16 and a stator 18, and a bias arrangement having a plurality of bias pads 34 connected to the stator 18 so as to be rotatable therewith, the bias pads 34 being moveable to allow the application of a side load to the steerable system.. .
Schlumberger Technology Corporation
12/11/14
20140362664

Methods and apparatus having borehole seismic waveform compression


An illustrative seismic while drilling system includes a drill string having at least one seismic sensor that can be employed to detect seismic signals during pauses in the drilling process, e.g., when extending the length of the drill string. An embedded processor digitizes a signal from the seismic sensor to obtain a digital waveform and processes the digital waveform to derive a compressed waveform representation for storage or transmission.
12/04/14
20140356087

Vacuum drilling system and methods


A vacuum drilling system and methods is provided that may utilize both a through tool coolant supply as well as a central vacuum extraction system. The system may include a cutting head provided on a hollow tube and a vacuum source to apply vacuum pressure to the area of the cutting head via one or more chip inlets arranged proximate to the cutting head.
12/04/14
20140355914

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.
12/04/14
20140353033

Automated drilling system


A drilling system comprises a drilling parameter sensor in communication with a sensor application 22 that generates processed data from raw data that is received from the drilling parameter sensor. A process application 24 is in communication with the sensor application 22 and generates an instruction based on the processed data.
11/13/14
20140332279

Driven latch mechanism


Implementations 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.
11/06/14
20140326511

Enhanced smear effect fracture plugging process for drilling systems


This invention relates to drilling a well, particularly an oil or gas well, where casing or liner will be installed to stabilize the wellbore. The present invention is intended to permit more drilling and longer lengths of casing or liner to be installed at one time.
11/06/14
20140326510

Wireline drilling system


A wireline drilling system for the hydrocarbon exploration and production industry incorporating a drilling cuttings removal system which acts to remove and store cuttings displaced by a drill bit during drilling operations. The cuttings removal system may employ a screw member having a tapered lower portion and a narrow upper portion to transport drilling cuttings to a cuttings basket and distribute the cuttings therein.
11/06/14
20140326505

Well drilling methods with audio and video inputs for event detection


A well drilling method can include sensing at least one of audio and optical signals, generating a parameter signature during a drilling operation, the parameter signature being based at least in part on the sensing, and detecting a drilling event by comparing the parameter signature to an event signature indicative of the drilling event. A well drilling system can include a control system which compares a parameter signature for a drilling operation to an event signature indicative of a drilling event, the parameter signature being based at least in part on an output of at least one audio and/or optical sensor, and a controller which controls the drilling operation in response to the drilling event being indicated by at least a partial match between the parameter signature and the event signature..
10/30/14
20140318865

Method and system for controlling vibrations in a drilling system


A control system and method for limiting vibrations in a drilling system, including a drill string and a drive system for providing drive torque for rotating the drill string at a reference frequency. The control system includes a sensor module for determining an uphole parameter of the drilling system, a model module provided with a model of the drilling system and adapted to provide modeled parameters of the drilling system using the drive torque as an input, a model gain module for providing a model gain vector to the model module in response to one or more of the modeled parameters and the drive torque.
10/30/14
20140318206

Core lifter


A core lifter and method for making same for use in a drilling system. The core lifter can include a tubular body having an exterior surface and an interior surface and can have a plurality of longitudinally-oriented recesses formed in the exterior surface of the tubular body of the core lifter and extending radially inwardly relative to the central axis of the core lifter.
10/23/14
20140314355

Bearing assembly including bearing support ring configured to reduce thermal warping during use


Various embodiments relate to a bearing assembly including a support ring configured to reduce thermal warping under operational temperature conditions, a bearing apparatus that may utilize such a thrust-bearing assembly, and applications that incorporate the disclosed bearing apparatuses such as downhole motors in subterranean drilling systems, directional drilling systems, and many other apparatuses. In an embodiment, a bearing assembly includes a plurality of superhard bearing elements distributed circumferentially about an axis.
10/02/14
20140291499

Mining systems and methods


The present invention provides systems and methods capable of improving the efficiency and effectiveness of leaching operations. In one embodiment, the present invention may utilize a coiled tubing directional drilling system capable of treating interior portions of the heap/formation.
09/25/14
20140284111

Horizontal directional drilling system


The present disclosure provides a drilling machine configuration and related method that avoids drilling mud from contaminating hydraulic fluid that flows through the drive system of the machine. The disclosed system and method provides a drilling mud anti-contamination system that requires infrequent service and a system wherein the service can be quickly and easily performed..
09/25/14
20140284110

Rotary steerable drilling system


A rotary steerable drilling system includes a housing, a drive shaft passing through the housing, a shaft/housing locking mechanism disposed to selectively engage the drive shaft and the housing, and an anti-rotation mechanism disposed to engage a wellbore wall. Shaft/housing locking mechanism includes a first configuration in which rotation of the drive shaft is independent of the housing, and a second configuration in which rotation of the drive shaft causes rotation of the housing.
09/25/14
20140283536

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..
09/18/14
20140270975

Three rail multi-directional direct cantilever skidding system


The present subject matter provides a three-rail multi-direction direct cantilever skidding system suitable for an offshore drilling system, where the three-rail multi-direction direct cantilever skidding system comprises movable guides accommodating the cantilever of a jackup drilling unit and enabling transverse skidding rails to provide direct support for the cantilever so the cantilever may be moved in both longitudinal and transverse directions.. .
09/18/14
20140270974

Multi-direction direct cantilever skidding system


The present subject matter provides a multi-direction direct cantilever skidding system suitable for an offshore drilling system, where the multi-direction direct cantilever skidding system comprises movable guides accommodating a cantilever of a jackup drilling unit or other mobile platform and enabling transverse skidding rails to provide direct support for the cantilever so the cantilever may be moved longitudinally and transversely.. .
09/18/14
20140263215

Laser systems for drilling holes in medical devices


Novel laser drilling systems are disclosed. The laser drilling systems are useful for drilling bore holes in medical devices, especially blind bore holes in surgical needles.
09/18/14
20140262514

Measuring torque in a downhole environment


A drilling system may include one or more downhole components to which a torque is applied. To determine the torque, the rotational velocity may be determined at two locations on a downhole component.
09/18/14
20140262512

Multi-service supply line system and method


Present embodiments are directed toward a drilling system that includes a conduit configured to route a pressurized gas to a top drive of a drilling rig. The drilling system also includes one or more cables disposed in the conduit.
09/18/14
20140262507

Rotary steerable system for vertical drilling


A rotary steerable drilling system that is operable to drill vertical wellbores and automatically maintain a vertical wellbore drilling path. The system includes a control module for operating solenoid valves that control an amount of fluid pressure applied to bias pad piston/cylinders.
09/18/14
20140262309

Offshore well system with a subsea pressure control system movable with a remotely operated vehicle


An offshore well drilling system for drilling a subsea well is presented that includes a floating platform, a surface bop stack, a riser, and a driveable environmental safe guard system. The safe guard system includes an upper wellhead connector, a lower wellhead connector, a blowout preventer with shearing blind rams, and a subsea pressure control system.
09/11/14
20140255115

Drilling system for deep holes


The invention is directed to a drill system that better uses the power curve of modern machine tools. The drill system uses a two-step drill, utilizing ic inserts to perform the major hole diameter cutting, and a central drilling system.
08/28/14
20140241654

Bearing apparatus having superhard bearing elements


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.
08/28/14
20140238748

Slotted liner drilling


Drilling assemblies, systems and methods enable a wellbore to be drilled and lined with a slotted liner. A drilling system includes a liner assembly with a drill string in a bore thereof.
08/21/14
20140231139

Drilling system having a super-capacitor amplifier and a transmitting signals


A method and a drilling system that may include a drilling element for drilling a hole in a geological formation; a sensor module arranged to collect information about the drilling; a transmitter that is arranged to receive the information from the sensor module, amplify the information by a super-capacitor amplifier to provide amplified information and to provide the amplified information to a first element and to a second element of an antenna, the first and second elements of the antenna are located at two opposite sides of a band gap; wherein the antenna is arranged to transmit the amplified information via the geological formation; wherein the super-capacitor amplifier comprises a plurality of switched capacitor converters, each switched capacitor converter comprises a plurality of converter stages, each converter stage comprises capacitors and switches that are arranged to perform a current amplification of an input signal; wherein each converter stage is arranged to operate with alternating charge cycles and discharge cycles.. .


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Drilling System topics: Drilling System, Hydrocarbon, Defibrillator, Cardioverter, Disconnect, Hydraulic Intensifier, Mud Pulse Telemetry, Drilling Method, Longitudinal Axis, Crystallin

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