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公开(公告)号：CN108131117A
公开(公告)日：2018-06-08
申请号：CN201711395297.6
申请日：2017-12-21
Applicant: 中国海洋石油集团有限公司 , 中海油研究总院有限责任公司
CPC classification number: E21B37/00 , B06B1/06 , B06B3/00 , B06B2201/73 , E21B28/00
Abstract: 本发明涉及一种大功率超声波换能器，其特征在于：它包括保护筒、上接头、下接头、上护帽、压力平衡器和下护帽；所述保护筒两端分别与所述上接头一端和下接头一端连接，所述上接头另一端与所述上护帽连接，所述下接头另一端经所述压力平衡器与所述下护帽连接。本发明将压电陶瓷直接与保护筒紧密组装，消除了中间介质的阻碍，使超声波传播效率有了较大提高，应用后可提高油井解堵的效率和解堵效果。
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公开(公告)号：CN107243446A
公开(公告)日：2017-10-13
申请号：CN201710631703.8
申请日：2017-07-28
Applicant: 陕西师范大学
CPC classification number: B06B3/02 , B06B3/04 , B06B2201/73
Abstract: 本发明涉及一种大功率多级阶梯型变幅杆，其包括输入杆和输出杆，输出杆直径小于输入杆的直径，在输入杆和输出杆之间连接有多级阶梯型过渡段，输入杆和过渡段、输出杆同轴设置，所述过渡段的直径逐级递减；本发明利用多级台阶梯度过渡来降低输入杆和输出杆之间的应力梯度峰值，而且放大系数高，使用寿命长，增设过渡段的设计大大增加了大功率工作状态下可承受的机械强度，能够承受大功率输入，而且本发明无需精密加工设备，减小了加工难度，大大降低了加工成本。
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公开(公告)号：US20180304308A1
公开(公告)日：2018-10-25
申请号：US15768774
申请日：2016-10-14
Applicant: UWAVE CO., LTD.
Inventor： Kazumasa OHNISHI
CPC classification number: B06B1/0618 , B06B1/06 , B06B3/00 , B06B2201/70 , B06B2201/72 , B06B2201/73 , B08B7/028 , B23C5/06 , B24B47/00 , B26D7/00
Abstract: A novel mode of ultrasonic oscillation is generated in a Langevin ultrasonic transducer comprising a metal block, a metal block provided with a supporting means protruding in a ring shape on its side surface, and polarized piezoelectric elements fixed between these metal blocks, by connecting the ultrasonic transducer to a base via the supporting means, whereby supporting the ultrasonic transducer on the base in a restrained state, and applying to the piezoelectric elements a voltage having such frequency that the ultrasonic transducer generates an ultrasonic oscillation with back-and-forth motion in a direction perpendicular to plane surfaces of the piezoelectric elements which has no oscillation node within the ultrasonic transducer; this novel ultrasonic oscillation mode is utilized for performing ultrasonic machining methods as well as for ultrasonic transmission method.
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公开(公告)号：US11992860B2
公开(公告)日：2024-05-28
申请号：US17346715
申请日：2021-06-14
Applicant: Halliburton Energy Services, Inc.
Inventor： Jing Jin , Ruijia Wang , Xiang Wu
CPC classification number: B06B1/0603 , B06B1/0614 , G01V1/159 , G01V1/52 , B06B2201/73 , G01V2001/526
Abstract: A Transducer in a downhole environment with an increased amplitude of the transducer output at lower frequencies. A transducer may include a bender bar, wherein the bender bar may include a first piezoelectric layer disposed on one surface of the bender bar, a second piezoelectric layer disposed on the opposite surface of the bender bar, and a metallic substrate disposed between the first piezoelectric layer and the second piezoelectric layer. The transducer may further include a first fixed end is attached to the bender bar and connects the bender bar to a base, a second fixed end opposite the first fixed end that attaches the bender bar to the base, and a compartment disposed within the base.
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公开(公告)号：US09797241B2
公开(公告)日：2017-10-24
申请号：US14766421
申请日：2014-02-07
Applicant: XACT Downhole Telemetry Inc.
Inventor： John Godfrey McRory
CPC classification number: E21B47/16 , B06B1/0215 , B06B2201/55 , B06B2201/73 , E21B47/14
Abstract: An acoustic transmitter for transmitting an acoustic signal through a downhole medium includes a voltage source; a composite load; and switching circuitry that applies voltage from the voltage source across the composite load in response to a drive signal. The composite load includes charge control circuitry, in the form of at least one inductor, connected electrically in series with a piezoelectric transducer that may be electrically modeled as a capacitor.
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Patent Agency Ranking
公开(公告)号：EP2954161B1
公开(公告)日：2018-09-12
申请号：EP14749094.0
申请日：2014-02-07
Applicant: Xact Downhole Telemetry, Inc.
Inventor： MCRORY, John Godfrey
CPC classification number: E21B47/16 , B06B1/0215 , B06B2201/55 , B06B2201/73 , E21B47/14
Abstract: An acoustic transmitter for transmitting an acoustic signal through a downhole medium includes a voltage source; a composite load; and switching circuitry that applies voltage from the voltage source across the composite load in response to a drive signal. The composite load includes charge control circuitry, in the form of at least one inductor, connected electrically in series with a piezoelectric transducer that may be electrically modeled as a capacitor.
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7.发明公开
公开(公告)号：EP2954161A1
公开(公告)日：2015-12-16
申请号：EP14749094.0
申请日：2014-02-07
Applicant: Xact Downhole Telemetry, Inc.
Inventor： MCRORY, John Godfrey
CPC classification number: E21B47/16 , B06B1/0215 , B06B2201/55 , B06B2201/73 , E21B47/14
Abstract: An acoustic transmitter for transmitting an acoustic signal through a downhole medium includes a voltage source; a composite load; and switching circuitry that applies voltage from the voltage source across the composite load in response to a drive signal. The composite load includes charge control circuitry, in the form of at least one inductor, connected electrically in series with a piezoelectric transducer that may be electrically modeled as a capacitor.
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公开(公告)号：US20240073624A1
公开(公告)日：2024-02-29
申请号：US17823779
申请日：2022-08-31
Applicant: Halliburton Energy Services, Inc.
CPC classification number: H04R17/02 , B06B1/067 , E21B47/00 , B06B2201/73
Abstract: A downhole transducer can include at least one single-crystal piezoelectric material, the at least one single-crystal piezoelectric material being positioned in the downhole transducer that is deployed downhole in a wellbore. Additionally, the downhole transducer can include at least one pair of electrodes positioned adjacent to the at least one single-crystal piezoelectric material for determining wellbore parameter measurements using one or more acoustic signals transmitted in the wellbore. The single-crystal piezoelectric material can include PIN-PZN-PT.
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公开(公告)号：US20230191503A1
公开(公告)日：2023-06-22
申请号：US17928390
申请日：2022-07-15
Applicant: TAKADA CORPORATION
Inventor： Keiichi Yotsumoto , Nobuhiro Mori , Hironobu Matsuyama
CPC classification number: B23B37/00 , F16B5/02 , B06B3/00 , B06B2201/73
Abstract: A female screw portion 24 is formed over the entire length of a through hole 23 passing through an axis of an ultrasonic horn 13, first and second male screw portions 25, 26 formed on the ultrasonic horn 13 side of axes of first and second boosters 14, 15 are screwed into the female screw portion 24, the ultrasonic horn 13 and the first and second boosters 14, 15 are fastened coaxially, leading ends 27, 28 of the first and second male screw portions 25, 26 are not in contact with each other inside the through hole 23, and a cutting blade 12 is attached to an outer periphery of a base portion 20 of the ultrasonic horn 13 having a space portion 29 surrounded by an inner wall of the through hole 23 and the leading ends 27, 28 of the first and second male screw portions 25, 26.
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10.发明申请公开(公告)号：US20150377017A1
公开(公告)日：2015-12-31
申请号：US14766421
申请日：2014-02-07
Applicant: XACT DOWNHOLE TELEMETRY INC.
Inventor： John Godfrey McRory
IPC: E21B47/16
CPC classification number: E21B47/16 , B06B1/0215 , B06B2201/55 , B06B2201/73 , E21B47/14
Abstract: An acoustic transmitter for transmitting an acoustic signal through a downhole medium includes a voltage source; a composite load; and switching circuitry that applies voltage from the voltage source across the composite load in response to a drive signal. The composite load includes charge control circuitry, in the form of at least one inductor, connected electrically in series with a piezoelectric transducer that may be electrically modeled as a capacitor.
Abstract translation: 用于通过井下介质发送声信号的声发射器包括电压源; 复合载荷 以及响应于驱动信号，从电压源跨复合负载施加电压的开关电路。 复合负载包括以至少一个电感器的形式的电荷控制电路，该电感器与可被电气建模为电容器的压电换能器电串联连接。
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