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81. 发明授权

US4845616A Method for extracting acoustic velocities in a well borehole 失效
标题翻译：在井眼中提取声速的方法
公开(公告)号：US4845616A
公开(公告)日：1989-07-04
申请号：US83140
申请日：1987-08-10
申请人： William E. Phillips
发明人： William E. Phillips
IPC分类号： G01V1/48
CPC分类号： G01V1/48
摘要： In an acoustic well logging apparatus including one or two transmitters and having a pair of spaced apart receivers, two interval transit times are measured independently through a common zone of interest. The two independent measured values are then compared and the difference is then used in contrast with a threshold determinant based on the period of the transmitted pulses. This comparison shows a difference. If the threshold value is not exceeded by the difference value a quality indication is then obtained suggesting that the acoustic measurements did not suffer from cycle skipping. If the threshold value is exceeded by the difference value, then a possible cycle skip exists. If testing shows that a cycle skip does exist, then the error that it introduces is removed from the final log, and a quality indication is obtained suggesting that the answer is good and that a cycle skip error has been removed.
摘要翻译：在包括一个或两个发射器并且具有一对间隔开的接收器的声学测井装置中，通过公共感兴趣的区域独立地测量两个间隔传送时间。然后将两个独立的测量值进行比较，然后基于发送脉冲的周期与阈值行列式进行对比。这个比较显示了差异。如果差值不超过阈值，则获得质量指示，表明声学测量没有遭受循环跳跃。如果差值超过阈值，则存在可能的循环跳过。如果测试显示循环跳转确实存在，则从最终日志中删除其引入的错误，并获得质量指示，表明答案很好，并且已经删除了循环跳过错误。

82. 发明授权

US4672588A Method for displaying acoustic well logging data by producing travel time stacks 失效
标题翻译：通过产生旅行时间堆叠显示声学测井数据的方法
公开(公告)号：US4672588A
公开(公告)日：1987-06-09
申请号：US684994
申请日：1984-12-20
申请人： Dennis E. Willen
发明人： Dennis E. Willen
IPC分类号： G01V1/36 , G01V1/48 , G01V1/00
CPC分类号： G01V1/48 , G01V1/362
摘要： A method for producing a display of acoustic signals received during full waveform acoustic well logging. In a preferred embodiment, the signals received at the individual receiver (or receivers) of the logging tool are stacked along lines of constant acoustic velocity to produce for display a stacked signal. Preferably, the raw signals are weighted prior to the stacking step, to compensate for decreasing amplitude of the acoustic arrival of interest with increasing transmitter to receiver distance. The stacked signals produced may be displayed in various formats, such as on a linear or logarithmic scale of inverse acoustic velocity, or of formation porosity. In a preferred embodiment, resulting in production for display of stacked signals providing greater resolution in the direction of the borehole axis, pairwise stacked signals are produced from data received at adjacent receivers, and after two or more acoustic transmitter firings at distinct positions in the borehole, the pairwise stacked signals associated with common depth intervals are added together and the resulting common depth stacks for each depth interval are displayed. The method makes full use of the entire wavetrain of the individual receiver signals processed in accordance therewith, and is sufficiently efficient to facilitate processing and display of acoustic logging data at the well site.
摘要翻译：一种用于产生在全波形声波测井期间接收的声信号的显示的方法。在优选实施例中，在测井工具的单个接收器（或接收器）处接收的信号沿恒定声速的线堆叠以产生用于显示堆叠信号。优选地，原始信号在堆叠步骤之前被加权，以便随着发射机到接收机距离的增加来补偿感兴趣的声学到达的幅度的减小。产生的堆叠信号可以以各种格式显示，例如以反声速度的线性或对数尺度或形成孔隙度。在优选实施例中，产生用于显示在钻孔轴方向上提供更高分辨率的堆叠信号，成对堆叠信号是从在相邻接收机处接收的数据产生的，并且在两个或多个声发射器在钻孔中的不同位置发射，将与公共深度间隔相关联的成对堆叠信号相加在一起，并且显示针对每个深度间隔的所得到的公共深度堆叠。该方法充分利用根据其处理的各个接收机信号的整个波束，并且足以有效地促进在井位处的声学测井数据的处理和显示。

83. 发明授权

US4446540A Acoustic well logging with energy level detection 失效
标题翻译：具有能级检测的声学测井
公开(公告)号：US4446540A
公开(公告)日：1984-05-01
申请号：US230189
申请日：1981-02-02
申请人： Mark D. Zimmer
发明人： Mark D. Zimmer
IPC分类号： G01V1/48 , G01V1/40
CPC分类号： G01V1/48
摘要： A well logging method and apparatus for detecting the first arrival of an acoustic wave in a logging signal under adverse signal conditions. The received acoustic signal is amplified at a fixed gain until clipped at the largest amplitude throughout the logging procedure. This amplified signal is converted RMS to DC level signal and stored in sample and hold means for a period shortly before first arrival of the acoustic wave. The continuing DC level signal and the stored DC level signal are compared to produce a comparator output DC signal when the continuing DC signal has a certain increased magnitude. This certain increased magnitude is used to generate a pulse of given magnitude and duration that is especially suitable in digital data systems.
摘要翻译：一种测井方法和装置，用于在不利的信号条件下检测声波在测井信号中的第一次到达。接收到的声信号以固定的增益被放大，直到在整个测井过程中以最大的振幅被截断。该放大的信号被转换成直流电平信号，并且在声波第一次到达之前的一段时间内被存储在取样和保持装置中。当持续的DC信号具有一定的增加的幅度时，继续DC电平信号和存储的DC电平信号被比较以产生比较器输出DC信号。这种某种增加的幅度用于产生特别适用于数字数据系统的给定幅度和持续时间的脉冲。

84. 发明授权

US3676842A Well logging methods and apparatus 失效
标题翻译：井记录方法和装置
公开(公告)号：US3676842A
公开(公告)日：1972-07-11
申请号：US3676842D
申请日：1969-12-29
申请人： SCHLUMBERGER TECHNOLOGY CORP
发明人： LEE JIMMY G
IPC分类号： G01V1/48 , G01V1/28 , G01V1/36
CPC分类号： G01V1/48
摘要： In accordance with illustrative embodiments of the present invention, techniques are disclosed for compensating acoustic well logging measurements for variations in one or more conditions of a well bore. More particularly, these measurements are compensated for variations in well bore cross-section, and well bore fluid acoustic impedance and velocity. These compensation techniques have particular significance in connection with systems of the type which scan a well bore wall by rotating a transducer means which emits directional bursts of high frequency acoustic energy and receives energy reflected off the bore wall. The electrical signals produced by this received energy are suitably processed to provide information relative to the character of the media forming the well bore wall.
摘要翻译：根据本发明的说明性实施例，公开了用于补偿井眼的一个或多个条件中的变化的声测井测量的技术。更具体地，这些测量被补偿了井眼横截面和井眼流体声阻抗和速度的变化。这些补偿技术对于通过旋转发射高频声能的方向性突发并且接收从孔壁反射的能量的换能器装置来扫描井壁的类型的系统具有特别的意义。由该接收的能量产生的电信号被适当地处理以提供关于形成井眼壁的介质的特性的信息。

85. 发明授权

US3560915A Sonic amplitude logging 失效
标题翻译： SONIC AMPLITUDE LOGGING
公开(公告)号：US3560915A
公开(公告)日：1971-02-02
申请号：US3560915D
申请日：1966-12-12
申请人： PHILLIPS PETROLEUM CO
发明人： ELLIOTT SHELDON E , LINDSEY JOE P
IPC分类号： G01V1/48 , H03K13/02
CPC分类号： G01V1/48
摘要： A SONIC SIGNAL GENERATOR AND RECEIVER ARE PLACED IN VERTICAL SPACED RELATIONSHIP IN A WELL BORE. THE RECEIVER ESTABLISHES AN ANALOG OUTPUT SIGNAL. THIS SIGNAL IS CONVERTED TO A CORRESPONDING DIGITAL SIGNAL BY DIVIDING THE ANALOG SIGNAL INTO SUCCESSIVE INCREMENTS AT A FIRST RATE. THE RESULTING INCREMENTS ARE PASSED TO INDIVIDUAL SIGNAL STORAGE DEVICES. THE INCREMENTS ARE SUBSEQUENTLY REMOVED FROM THE STORAGE DEVICES IN SEQUENCE AT A PRESELECTED SECOND RATE WHICH IS SLOWER THAN THE FIRST RATE, AND THE REMOVED INCREMENTS ARE CONVERTED INTO CORRESPONDING DIGITIZED SIGNALS.

86. 发明授权

US3493849A Methods and apparatus for investigating earth formations wherein the vertical resolution of a first exploring means is altered to approximate the vertical resolution of a second exploring means 失效
标题翻译：用于调查第一次探索手段的垂直分辨率的地球形态的方法和装置被改变为近似第二探测方式的垂直分辨率
公开(公告)号：US3493849A
公开(公告)日：1970-02-03
申请号：US3493849D
申请日：1968-07-31
申请人： SCHLUMBERGER TECHNOLOGY CORP
发明人： DOLL HENRI-GEORGES
IPC分类号： G01V1/48 , G01V3/00 , G01V3/12
CPC分类号： G01V1/48

87. 发明授权

US3457544A Methods and apparatus for recording well logging data 失效
标题翻译：记录井记录数据的方法和装置
公开(公告)号：US3457544A
公开(公告)日：1969-07-22
申请号：US3457544D
申请日：1968-02-06
申请人： SCHLUMBERGER TECHNOLOGY CORP
发明人： MILLER GERALD K , SAUTER WILLIAM D , WARREN JOHN P
IPC分类号： G01V1/44 , G01V1/48 , G01V3/34 , G01V11/00 , H03M1/00 , G01V1/40
CPC分类号： G01V1/44 , G01V1/48 , G01V3/34 , G01V11/002 , H03M1/56

88. 发明授权

US3340955A Logging apparatus with peak amplitude measurement of a selected half-cycle 失效
标题翻译：具有所选半周期峰值幅度测量的测井设备
公开(公告)号：US3340955A
公开(公告)日：1967-09-12
申请号：US83132859
申请日：1959-08-03
申请人： SCHLUMBERGER TECHNOLOGY CORP
发明人： GOLLWITZER LEE H
IPC分类号： G01V1/48
CPC分类号： G01V1/48

89. 发明授权

US11598895B2 Ultrasonic waveform processing using deconvolution in downhole environments 有权
公开(公告)号：US11598895B2
公开(公告)日：2023-03-07
申请号：US16342642
申请日：2018-05-25
申请人： Halliburton Energy Services, Inc.
发明人： Glenn Andrew Wilson , Arthur Cheng
IPC分类号： E21B47/08 , G01V1/46 , G01V1/48 , G01V1/50 , E21B47/005 , E21B47/002 , E21B49/00 , E21B47/18
摘要： Deconvolution-based processing of ultrasonic waveforms enables robust calculation of two-way travel time for an ultrasonic caliper, particularly in the presence of multiple, proximal reflectors (e.g., mud cake, formation, casing, cement, etc.).

90. 发明授权

US11578591B2 Correcting for eccentricity of acoustic sensors in wells and pipes 有权
公开(公告)号：US11578591B2
公开(公告)日：2023-02-14
申请号：US16707797
申请日：2019-12-09
申请人： DARKVISION TECHNOLOGIES INC
发明人： Graham Manders
IPC分类号： E21B47/14 , G01V1/48 , E21B47/085 , G01V11/00
摘要： A device and method used to correct beamforming of an acoustic phased array in cases of eccentricity of the acoustic device in a tubular. A processor calculates the eccentricity from multiple scan lines and create a geometric model of a well or pipe relative to the device. The processor may correct each scan line's focus and/or angle of incidence at a surface of the well or pipe based on the observed eccentricity.

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