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1. 发明申请

WO2017138914A1 ELECTRICAL CONVEYANCE FOR DOWNHOLE TOOLS 审中-公开
标题翻译：井下工具的电气传输
公开(公告)号：WO2017138914A1
公开(公告)日：2017-08-17
申请号：PCT/US2016/016997
申请日：2016-02-08
申请人： HALLIBURTON ENERGY SERVICES, INC. , CHEVRON U.S.A. INC.
发明人： SITKA, Mark A. , AGNIHOTRI, Mukul M.
IPC分类号： E21B41/00 , E21B7/14 , E21B7/15
CPC分类号： E21B41/00 , E21B3/02 , E21B7/15 , E21B10/00 , E21B17/003 , E21B17/028 , F16C19/364 , F16C2352/00
摘要： A electrical conveyance for downhole tools is disclosed. The electrical conveyance system may include an electrical power manifold, a drill string coupled to the electrical power manifold, a multi-conductor conduit extending through an interior of the drill string, and a stinger assembly extending from an exterior of the electrical power manifold to an interior of the electrical power manifold to couple the multi-conductor conduit to an electrical power source.
摘要翻译：公开了一种用于井下工具的电力输送装置。电输送系统可以包括电力歧管，联接到电力歧管的钻柱，延伸穿过钻柱内部的多导体管道以及从电力歧管的外部延伸到电力歧管的内部将多导体导管连接到电源。

2. 发明申请

WO2023039314A1 OPTIMIZATION OF PULSE GENERATION PARAMETERS TO COMPENSATE FOR CHANNEL NON-LINEARITY IN MUD PULSE TELEMETRY 审中-公开
公开(公告)号：WO2023039314A1
公开(公告)日：2023-03-16
申请号：PCT/US2022/073495
申请日：2022-07-07
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： SHAH, Faisal , LIE, Joni Polili , AGNIHOTRI, Mukul M.
IPC分类号： E21B47/18 , E21B47/06 , E21B47/12
摘要： Downhole telemetry systems and related methods adaptively compensate for channel non-linearity effects. To compensate for channel non-linearity, the optimum signal generation parameters are determined that produce the desired modulated pressure variation at the surface. The signal generation parameters are optimized to minimize the discrepancy between the surface detected pressure signal and the intended signal. The mud propagation channel is first estimated in light of the known modulation scheme under an ideal linear-time-invariant channel assumption. The estimated channel is used to synthesize the modulated pressure signal undergoing the mud propagation given the initial signal generation parameters. The method then varies the synthesized signal generation parameters to search for the optimal signal generation parameters. The optimal signal generation parameters are then sent over downlink channel to the downhole pulser, which is ultimately used to generate the pulse waveform.

3. 发明申请

WO2022076004A1 SHAPE MEMORY ALLOY SHAFT ALIGNMENT COUPLER FOR DOWNHOLE TOOLS 审中-公开
公开(公告)号：WO2022076004A1
公开(公告)日：2022-04-14
申请号：PCT/US2020/057328
申请日：2020-10-26
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： SCHAEFFER, Alexander J. , AGNIHOTRI, Mukul M. , CARTER, Daniel Patrick
IPC分类号： E21B17/07 , E21B19/16 , E21B23/10
摘要： An apparatus comprising a housing having a housing throughbore extending therethrough along a central axis; a motor drive shaft disposed in the housing throughbore; a component drive shaft disposed in the housing throughbore; and an alignment coupler mechanically coupling the motor drive shaft with the component drive shaft. The alignment coupler comprises: an alignment coupler body having an alignment coupler body throughbore extending therethrough; a spherical bolt comprising a spherical first end and an elongated section extending from the spherical first end to a second end; a thermally expandable material (TEM) section; a spring section comprising one or more springs; and one or more spherical spacers. The alignment coupler enables alignment of the motor drive shaft and the component drive shaft within the apparatus during assembly of the apparatus, and heating of the TEM provides rigidity to the assembled apparatus prior to use.

4. 发明申请

WO2017074352A1 DOWNHOLE TURBINE WITH AN ADJUSTABLE SHROUD 审中-公开
标题翻译：带有可调节罩的井下涡轮机
公开(公告)号：WO2017074352A1
公开(公告)日：2017-05-04
申请号：PCT/US2015/057809
申请日：2015-10-28
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： CHAMBERS, Larry DeLynn , MARZOUK, Joe , ODEGBAMI, Olumide O. , AGNIHOTRI, Mukul M.
IPC分类号： E21B41/00 , H02K7/18 , E21B4/00
CPC分类号： H02K7/1823 , E21B4/02 , F03B13/02 , F05B2250/02
摘要： A method and apparatus according to which an output of a power generation system is controlled. In one embodiment, the power generation system includes a turbine and a feedback control system. The turbine includes a rotor to which a first portion of a power fluid is communicated, the first portion imparting torque to the rotor; a shaft to which the rotor is connected; a shroud extending circumferentially about the rotor and the shaft; and a bypass gap between the rotor and the shroud, through which a second portion of the power fluid is communicated. The feedback control system axially displaces the shroud relative to the rotor, thereby adjusting the size of the bypass gap and, consequently, the ratio of the first portion relative to the second portion.
摘要翻译：根据其控制发电系统的输出的方法和设备。在一个实施例中，发电系统包括涡轮机和反馈控制系统。涡轮机包括转子，动力流体的第一部分连通到转子，第一部分将转矩施加到转子; 与转子连接的轴; 围绕所述转子和所述轴周向延伸的护罩; 以及在转子和护罩之间的旁路间隙，动力流体的第二部分通过该旁路间隙连通。反馈控制系统相对于转子轴向移动护罩，由此调节旁路间隙的尺寸并因此调节第一部分相对于第二部分的比例。

5. 发明申请

WO2022216270A1 ADAPTIVE PULSE WAVEFORM FOR CHANNEL ESTIMATION IN MUD PULSE TELEMETRY 审中-公开
公开(公告)号：WO2022216270A1
公开(公告)日：2022-10-13
申请号：PCT/US2021/025756
申请日：2021-04-05
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： LIE, Joni Polili , AGNIHOTRI, Mukul M. , SHAH, Faisal
IPC分类号： E21B47/18 , E21B44/02 , E21B47/26
摘要： Downhole telemetry systems and related methods to adaptively adjust pulse waveform width through digitally controlled pulsing parameters. Disclosed embodiments provide a computer-implemented downhole telemetry method, comprising: generating a first pulse waveform having a first pulse width and using a first controller communicably coupled to a downhole pulser; propagating the first pulse waveform along a wellbore; detecting the first pulse waveform at a second controller; estimating a channel of the detected first pulse waveform; determining whether the channel estimate meets a quality threshold; responsive to a determination the channel estimate does not meet the quality threshold, transmitting a stretch factor signal from the second controller to the first controller to adjust the first pulse width to a second pulse width; generating a second pulse waveform having the second pulse width using the first controller; propagating the second pulse waveform along the wellbore; and detecting the second pulse waveform at the second controller.

6. 发明申请

WO2021145875A1 COMPRESSIBLE LOAD SHOULDER FOR DAMPENING SHOCK IN DOWNHOLE TELEMETRY TOOL 审中-公开
公开(公告)号：WO2021145875A1
公开(公告)日：2021-07-22
申请号：PCT/US2020/013749
申请日：2020-01-15
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： SCHAEFFER, Alexander J. , AGNIHOTRI, Mukul M. , NANAYAKKARA, Ravi P. , CHONG, Matthew Hui , BROWN, Carl E.
IPC分类号： E21B17/07 , E21B47/18
摘要： A mud pulse telemetry tool includes a dampener for reducing shock and vibration. The mud pulse telemetry tool includes a housing having a shoulder formed along an inner surface thereof, the housing including an orifice formed therein. A piston assembly is longitudinally movable in the housing between a retracted position and an extended position. The piston assembly includes a poppet disposable in the orifice in the extended position and a piston connected to the poppet. The dampener is disposed longitudinally between the piston and the shoulder, the piston being movable in contact with the dampener when the piston assembly is in the extended position.

7. 发明申请

WO2022071935A1 TELEMETRY USING PULSE SHAPE MODULATION 审中-公开
公开(公告)号：WO2022071935A1
公开(公告)日：2022-04-07
申请号：PCT/US2020/053438
申请日：2020-09-30
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： GAO, Li , NANAYAKKARA, Ravi P. , LIE, Joni Polili , AGNIHOTRI, Mukul M.
IPC分类号： E21B47/20 , E21B34/06 , E21B47/06
摘要： A downhole telemetry method and system are disclosed. In some embodiment, a method includes driving a pulser device based on an input data stream, wherein driving the pulser device includes generating modulated pressure pulses including modulated pulse shapes within a fluid telemetry medium. In some embodiments in which bi-modulation is utilized, the method further includes driving the pulser device including modulating pressure pulses including pulse position modulating pressure pulses.

8. 发明申请

WO2017095443A1 MAGNETIC COUPLING FOR DOWNHOLE APPLICATIONS 审中-公开
标题翻译：井下应用的磁耦合
公开(公告)号：WO2017095443A1
公开(公告)日：2017-06-08
申请号：PCT/US2015/064041
申请日：2015-12-04
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： AGNIHOTRI, Mukul M. , RAJAGOPALAN, Satish
IPC分类号： E21B17/02 , E21B17/03 , E21B41/00
CPC分类号： E21B17/03 , E21B17/028
摘要： The present disclosure relates to a magnetic coupling of a downhole tool that includes a first annular array of magnetic sections, a second annular array of magnetic sections coupled to the first annular array by a magnetic field that transfers rotational motion from the first annular array to the second annular array, and a barrier disposed between the first annular array and the second annular array, the barrier including an erosion-resistant layer. The present disclosure also relates to a method of bootstrapping a magnetic coupling of a downhole tool. The method includes supplying electrical current from a battery to an electromagnetic coil in the magnetic coupling, transferring rotational motion from the magnetic coupling to an alternating current (AC) source and supplying electrical current from the AC source to the electromagnetic coil.
摘要翻译：本公开涉及井下工具的磁性联接，该井下工具包括磁性部分的第一环形阵列，通过传递旋转的磁场耦合到第一环形阵列的磁性部分的第二环形阵列从第一环形阵列到第二环形阵列的运动以及设置在第一环形阵列和第二环形阵列之间的屏障，屏障包括耐腐蚀层。本公开还涉及一种引导井下工具的磁耦合的方法。该方法包括从电池向电磁耦合中的电磁线圈提供电流，将旋转运动从磁耦合转移到交流（AC）电源，并将电流从交流电源提供给电磁线圈。

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