公开(公告)号：US12276183B2

公开(公告)日：2025-04-15

申请号：US17879856

申请日：2022-08-03

Applicant: Probe Technology Services, Inc.

Inventor： Roger Archibald

IPC: E21B43/1185 ,  E21B47/12 ,  F42D1/05

Abstract: An initiator circuit for a perforating gun includes a microprocessor structured to perform a circuit-startup algorithm comprising determining whether the circuit supply voltage is stable enough for operation and, if it is, or if a predetermined period of time has passed since powering up the circuit, sending a message indicating the circuit (and thus gun) is ready for operation. The sent message may be a communication uplink indicating an address of the circuit and its ready state or a short burst of pulses indicating the circuit's ready state.

公开(公告)号：USD894025S1

公开(公告)日：2020-08-25

申请号：US29670517

申请日：2018-11-16

Applicant: Nidec-Read Corporation ,  SV Probe Technology Taiwan Co., Ltd.

Designer： Michio Kaida ,  Huei Che Yu

公开(公告)号：US20200264014A1

公开(公告)日：2020-08-20

申请号：US16793342

申请日：2020-02-18

Applicant: Probe Technology Services, Inc.

Inventor： Marvin Beckman ,  Thientu Ho ,  Loi Tran ,  Mark Hastings ,  Terry Hendrix

IPC: G01D5/22 ,  E21B47/08 ,  E21B47/00

Abstract: A caliper-arm-position sensor comprising a differential variable reluctance transducer (DVRT) and circuits to drive the DVRT with a substantially sinusoidal signal and to sample a signal at the DVRT once per drive-signal cycle at a predetermined position in the drive-signal cycle is disclosed.

公开(公告)号：US20130270431A1

公开(公告)日：2013-10-17

申请号：US13817115

申请日：2011-05-24

Applicant: Daniel Carl Minette ,  Harry D. Smith ,  Phillip R. Phelps

Inventor： Daniel Carl Minette ,  Harry D. Smith ,  Phillip R. Phelps

IPC: G01V5/12

CPC classification number: G01V5/12

Abstract: A full bore spectral gas holdup tool that measures gas holdup that is corrected for effects of the flowstream lamination and the salinity of the liquid in the a flowstream. The basic methodology utilizes spectral data from two gamma ray detectors at different spacings from a nuclear source that emits gamma radiation. 57Co is the preferred source and the gamma ray detectors are scintillation spectrometers. In addition to a full bore gas holdup measurement, the spectral gas holdup tool also provides indications of the degree of flowstream lamination and the salinity of the liquid in the flowstream. An iterative data processing method optimizes the accuracy of the measured flowstream parameters.

Abstract translation: 一种全孔光谱气体滞留工具，用于测量气流层压效应校正的气体滞留量，以及流动流中液体的盐度。 基本方法利用来自发射γ辐射的核源的不同间隔的两个伽马射线检测器的光谱数据。 57Co是优选的来源，γ射线检测器是闪烁光谱仪。 除了全口径气体保持测量之外，光谱气体保持工具还提供流动流层流程度和流动流体中液体的盐度的指示。 迭代数据处理方法优化了测量流量参数的准确性。

公开(公告)号：US07802619B2

公开(公告)日：2010-09-28

申请号：US12231469

申请日：2008-09-03

Applicant: Brian W. Hurst ,  John L. Marshall ,  David S. Wesson

Inventor： Brian W. Hurst ,  John L. Marshall ,  David S. Wesson

IPC: E21B29/02 ,  E21B43/1185

CPC classification number: E21B43/1185

Abstract: Methods and devices are provided for controlling detonation of explosives in a well bore for perforation or a well bore casing, which avoid or reduce unintentional or undesirable detonations while ensuring or increasing desirable detonations. An explosive trigger system or tool may comprise a central processing unit (CPU), memory, and one or more sensors disposed for measuring one or more downhole conditions. Downhole conditions may be measured with the sensor and then used to program detonation parameters (such as temperature or pressure) or preconditions (such as time or distance traveled) to the trigger system. Detonation can only occur when the programmed parameters or preconditions are satisfied. In this way, undesirable detonations are avoided by requiring certain preconditions to arming the trigger system. To further control arming and/or detonating, a line sequencer may be provided, wherein energy is propagate down along the physical deployment line as pulses or line “jerks” through mechanical manipulations of physical deployment line near surface. These pulses can form signals for downhole control of the trigger system.

公开(公告)号：US07411864B2

公开(公告)日：2008-08-12

申请号：US11233720

申请日：2005-09-23

Applicant: Brian Hurst ,  John L. Marshall ,  David M. O'Connor

Inventor： Brian Hurst ,  John L. Marshall ,  David M. O'Connor

IPC: G01V1/48

CPC classification number: G01V1/46

Abstract: A longitudinally segmented acoustic transducer for a cement bond logging (CBL) tool having a plurality of adjoining PZT ring-like segments driven synchronously in parallel by one or more pulses and caused to vibrate in an anti-resonant mode, substantially below the resonant frequency of an individual segment when used in a transmitting application. When used in a receiving application, each of the plurality of transducer rings are caused to vibrate by acoustic signals detected by the transducer array, also in an anti-resonant mode. High speed digital signal processing enables on-depth, high quality data for all azimuths at each depth to be obtained, processed, normalized and either sent to the surface in real time for each 20 Hz firing cycle, as the CBL tool is pulled toward the surface, or stored in a memory module in digital form for later retrieval. Built-in calibration factors used for normalizing the output signals to the operating conditions of use may be accessed at any time.

Abstract translation: 一种用于水泥结合测井（CBL）工具的纵向分段的声换能器，其具有多个邻接的PZT环形段，其通过一个或多个脉冲并行驱动并且以反谐振模式振动，基本上低于谐振频率 在传送应用程序中使用的单个段。 当在接收应用中使用时，通过由换能器阵列检测的声信号也使多个换能器环中的每一个也以反谐振模式振动。 高速数字信号处理使得能够获得，处理，归一化每个深度的所有方位角的深度，高质量数据，并且在每个20Hz的点火周期内实时地发送到表面，因为CBL工具被拉向 表面或以数字形式存储在存储器模块中以供稍后检索。 可以随时访问用于将输出信号归一化到使用条件的内置校准因子。

公开(公告)号：US06861855B2

公开(公告)日：2005-03-01

申请号：US09735684

申请日：2000-12-13

Applicant: Jean-Michel Jurine ,  Isabelle George

Inventor： Jean-Michel Jurine ,  Isabelle George

IPC: G01R31/26 ,  G01R1/067 ,  G01R1/073 ,  G01R3/00 ,  H01L21/66 ,  H01R13/02 ,  G01R31/02

CPC classification number: G01R1/0675 ,  G01R1/07357 ,  G01R3/00

Abstract: This invention pertains to a high density interconnection test connector intended especially for verification of integrated circuits, including a plate supporting a multiplicity of conductive pins one of the ends of which forms a contact zone with the electronic circuit to be tested and the other end forms a contact zone with a connecting plate that has a connection means with the test equipment, with the conductive pins presenting a form that is capable of ensuring flexibility and including a longitudinal component, characterized in that the pins present a succession of at least three arc-shaped sections (4, 5, 6) in alternating directions extended on both sides by rectilinear segments that are mobile according to one degree of freedom in axial translation, with the pins being inserted in the front plates.

Abstract translation: 本发明涉及一种特别用于验证集成电路的高密度互连测试连接器，其包括支撑多个导电引脚的板，其中一个端部与待测试的电子电路形成接触区域，另一端形成 接触区带有与测试设备具有连接装置的连接板，导电销具有能够确保柔性并且包括纵向部件的形式，其特征在于，所述销呈现一系列至少三个弧形 在两侧的交替方向上的横截面（4,5,6）由直线段延伸，直线段可根据轴向平移中的一个自由度移动，并将销插入前板。

公开(公告)号：US06850462B2

公开(公告)日：2005-02-01

申请号：US10079626

申请日：2002-02-19

Applicant: Ronald E. McDaniel ,  Tony M. Small ,  Dwight A. Bloomfield

Inventor： Ronald E. McDaniel ,  Tony M. Small ,  Dwight A. Bloomfield

IPC: G01V1/44 ,  G01V1/40

CPC classification number: G01V1/44

Abstract: A method and device are shown for detecting the characteristics of a cement annulus between a casing in a borehole and the surrounding earth formations in a slickline cement bond logging operation. An acoustic logging tool is utilized which produces a pure signal downhole. The received acoustically transmitted energy produces electrical signals indicative of both the amplitude of the received energy and variable density log data. Both the amplitude data and the variable density log data are captured in memory downhole by the use of a time amplitude matrix which stores a limited number of data points for producing a cement bond log at the well surface.

Abstract translation: 示出了一种方法和装置，其用于检测在井眼中的壳体与周围的地层之间的水泥环的特性，在水泥粘结测井作业中。 使用了一种声学测井工具，可在井下产生纯粹的信号。 所接收的声发射能量产生指示接收能量的振幅和可变密度测井数据两者的电信号。 振幅数据和可变密度测井数据都通过使用时间幅度矩阵在井下的存储器中捕获，时间幅度矩阵存储有限数量的数据点，用于在井表面产生水泥结合记录。

公开(公告)号：US11746643B2

公开(公告)日：2023-09-05

申请号：US17382620

申请日：2021-07-22

Applicant: Probe Technology Services, Inc.

Inventor： Jun Zhang ,  Yibing Zheng

IPC: E21B47/005 ,  G01V1/50 ,  G01V1/40 ,  E21B33/14

CPC classification number: E21B47/005 ,  G01V1/40 ,  G01V1/50 ,  E21B33/14

Abstract: Various downhole logging tools and methods of using and making the same are disclosed. In one aspect a method evaluating cement bond quality in a well is provided. In a well with a particular casing/tubing configuration, waveforms of acoustic energy returning from the tubing and the casing with the tubing present are recorded. A frequency spectrum from the recorded waveforms is determined. Amplitudes of the returning acoustic energy at one or more preselected frequency(s) of interest of a range of frequencies at which the amplitudes are noticeably affected by cement bond quality for the particular casing/tubing configuration are determined. The determined amplitudes are compared with one or more baseline amplitudes to look for indications of cement bond quality. Other aspects involve time domain analysis.

公开(公告)号：US20210348500A1

公开(公告)日：2021-11-11

申请号：US17382620

申请日：2021-07-22

Applicant: Probe Technology Services, Inc.

Inventor： Jun Zhang ,  Yibing Zheng

IPC: E21B47/005 ,  G01V1/50 ,  G01V1/40

Abstract: Various downhole logging tools and methods of using and making the same are disclosed. In one aspect a method evaluating cement bond quality in a well is provided. In a well with a particular casing/tubing configuration, waveforms of acoustic energy returning from the tubing and the casing with the tubing present are recorded. A frequency spectrum from the recorded waveforms is determined. Amplitudes of the returning acoustic energy at one or more preselected frequency(s) of interest of a range of frequencies at which the amplitudes are noticeably affected by cement bond quality for the particular casing/tubing configuration are determined. The determined amplitudes are compared with one or more baseline amplitudes to look for indications of cement bond quality. Other aspects involve time domain analysis.