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公开(公告)号：US11988092B2
公开(公告)日：2024-05-21
申请号：US17065064
申请日：2020-10-07
发明人： William M. Moeny
摘要： A downhole drilling system is disclosed. The downhole drilling system may include a bottom-hole assembly having a pulse-generating circuit and a switching circuit within the pulse-generating circuit, the switching circuit comprising a solid-state switch. The downhole drilling system may also include a drill bit having a first electrode and a second electrode electrically coupled to the pulse-generating circuit to receive a pulse from the pulse-generating circuit.
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公开(公告)号：US20210025240A1
公开(公告)日：2021-01-28
申请号：US17065064
申请日：2020-10-07
发明人： William M. Moeny
摘要： A downhole drilling system is disclosed. The downhole drilling system may include a bottom-hole assembly having a pulse-generating circuit and a switching circuit within the pulse-generating circuit, the switching circuit comprising a solid-state switch. The downhole drilling system may also include a drill bit having a first electrode and a second electrode electrically coupled to the pulse-generating circuit to receive a pulse from the pulse-generating circuit.
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公开(公告)号：US10472894B2
公开(公告)日：2019-11-12
申请号：US15544408
申请日：2016-10-13
发明人： Joshua A. Gilbrech
摘要： A downhole drilling system is disclosed. The downhole drilling system may include a pulse-generating circuit electrically coupled to a power source to provide power at a frequency, the pulse-generating circuit comprising an input stage tank circuit electrically coupled to the power source, the input stage tank circuit configured to have a resonant frequency approximately equal to the frequency; a series tank circuit electromagnetically coupled to the input stage tank circuit, the series tank circuit configured to have a resonant frequency approximately equal to the frequency; and an output stage tank circuit electromagnetically coupled to the series tank circuit, the output stage tank circuit configured to have a resonant frequency approximately equal to the frequency; and a drill bit including a first electrode and a second electrode electrically coupled to the output stage tank circuit to receive an electric pulse from the pulse-generating circuit.
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4.发明申请APPARATUS AND METHOD FOR SUPPLYING ELECTRICAL POWER TO AN ELECTROCRUSHING DRILL 审中-公开将电力供应给电钻的装置和方法公开(公告)号：US20150308235A1
公开(公告)日：2015-10-29
申请号：US14694517
申请日：2015-04-23
申请人： SDG, LLC
发明人： William M. Moeny
摘要： An apparatus and method for controlling power delivered to a pulsed power system which includes a command charge switch for controlling when power produced by a primary power system is fed into a cable. The command charge switch also controls the power delivered to the pulsed power system in a bottom hole assembly.
摘要翻译： 一种用于控制传送到脉冲电力系统的功率的装置和方法，包括用于控制由主电力系统产生的电力何时被馈送到电缆中的指令充电开关。 命令充电开关还控制底孔组件中传递到脉冲电力系统的功率。
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5.发明申请APPARATUSES AND METHODS FOR SUPPLYING ELECTRICAL POWER TO AN ELECTROCRUSHING DRILL 审中-公开将电力供应给电钻的装置和方法公开(公告)号：US20140008968A1
公开(公告)日：2014-01-09
申请号：US13935995
申请日：2013-07-05
申请人： SDG, LLC
发明人： William M. Moeny
IPC分类号： E21B7/15
CPC分类号： E21B7/15 , E21B17/003
摘要： Methods and apparatuses for directly charging capacitors in a down-hole pulsed power system used for electrocrushing drilling. An above ground power supply is directly connected to the capacitors. The power supply can be a switching power supply, a DC supply, or an AC supply. Capacitor voltage is monitored and controlled. The system reduces noise caused by coupling control signal cables and the power cable, and does not have the ground swing control problems of other charging schemes. The power may alternatively be provided by microwave transmission.
摘要翻译： 在用于电钻钻井的井下脉冲电力系统中直接对电容器充电的方法和装置。 地面电源直接连接到电容器。 电源可以是开关电源，直流电源或交流电源。 监测和控制电容器电压。 该系统降低了耦合控制信号电缆和电源线引起的噪声，并且不具备其他充电方案的地面摆动控制问题。 可以通过微波传输来提供功率。
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公开(公告)号：US08567522B2
公开(公告)日：2013-10-29
申请号：US13719779
申请日：2012-12-19
申请人： SDG, LLC
发明人： William M. Moeny
IPC分类号： E21B7/15
摘要： An apparatus and method for controlling power delivered to a pulsed power system which includes a command charge switch for controlling when power produced by a primary power system is fed into a cable. The command charge switch also controls the power delivered to the pulsed power system in a bottom hole assembly.
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公开(公告)号：US20230332470A1
公开(公告)日：2023-10-19
申请号：US18340709
申请日：2023-06-23
发明人： William M. Moeny
CPC分类号： E21B7/15 , E21C37/18 , E21B10/00 , E21B10/60 , B02C2019/183
摘要： An electrocrushing drill bit comprises a bit body and at least one electrode coupled to a power source and the bit body, wherein the at least one electrode having a distal portion for engaging with a surface of a wellbore. The electrocrushing drill bit comprises a ground structure coupled to the bit body proximate to the at least one electrode and having a distal portion for engaging with the surface of the wellbore, wherein the ground structure comprises a transverse ground structure.
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公开(公告)号：US20230144083A1
公开(公告)日：2023-05-11
申请号：US17982789
申请日：2022-11-08
CPC分类号： E21B7/15 , E21B41/0085
摘要： An apparatus comprises an electrode assembly positioned at a bottom end of a pulse power drill string to be positioned in a borehole formed in a subsurface formation. The electrode assembly comprises multiple electrodes, wherein at least a subset of the multiple electrodes is to periodically emit a pulse of an electrical discharge into the subsurface formation to drill the borehole. The electrode assembly comprises a controller configured to alter a direction of drilling of the borehole based on selection of the subset from the multiple electrodes, wherein an effective attribute of at least one electrode of the multiple electrodes is different than the effective attribute of other electrodes of the multiple electrodes, wherein the effective attribute comprises at least one of a shape and a size.
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公开(公告)号：US11480015B2
公开(公告)日：2022-10-25
申请号：US17108765
申请日：2020-12-01
发明人： William M. Moeny
摘要： 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 surface of a wellbore; a ground ring coupled to the bit body proximate to the electrode and having a distal portion for engaging with the surface of the wellbore, the electrode and the ground ring positioned in relation to each other such that an electric field produced by a voltage applied between the ground ring and the electrode is enhanced at a portion of the electrode proximate to the distal portion of the electrode and at a portion of the ground ring proximate to the distal portion of the ground ring; and an insulator coupled to the bit body between the electrode and the ground ring.
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10.发明申请公开(公告)号：US20210324683A1
公开(公告)日：2021-10-21
申请号：US17363590
申请日：2021-06-30
摘要： A disclosed pulsed-power drilling system may include a controller that receives and analyzes feedback from downhole components reflecting changing conditions or performance measurements associated with a pulsed drilling operation to determine that an operating parameter of the drilling operation should be modified. The controller may output a control signal to cause an adjustment of a configurable downhole component, such as mechanical, electrical, or hydraulic component that affects the operating parameter, while the drill bit remains in the wellbore. The controller may adjust a segmented transformer of a pulse-generating circuit, changing the number of primary winding switches that are fired, or the timing of the firing of the switches, to modify characteristics of the generated pulses. Adjusting a downhole component may affect the drilling rate, the drilling direction, the flow of drilling fluid, a pulse rise time, a pulse repetition rate, or a rate of penetration for the drilling operation.
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