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41. 发明申请

WO2016191028A1 MEASURING FREQUENCY-DEPENDENT ACOUSTIC ATTENUATION 审中-公开
标题翻译：测量频率依赖性声学衰减
公开(公告)号：WO2016191028A1
公开(公告)日：2016-12-01
申请号：PCT/US2016/029749
申请日：2016-04-28
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： MANDAL, Batakrishna , JAGANNATHAN, Srinivasan
IPC分类号： G01H3/04 , G01N29/036
CPC分类号： E21B47/182 , E21B47/0005 , E21B49/08 , G01V1/46 , G01V1/50 , G01V2001/526
摘要： Methods and systems for frequency-dependent fluid attenuation measurement are provided. In certain embodiments, the methods comprise: generating one or more reference acoustic signals within a reference fluid; receiving one or more reference acoustic signal reflections; determining a frequency-dependent response function based, at least in part, on the one or more reference acoustic signal reflections; generating one or more sample acoustic signals within a sample fluid; receiving one or more sample acoustic signal reflections; and determining a frequency-dependent attenuation function of the sample fluid based, at least in part, on the one or more sample acoustic signal reflections and the frequency-dependent response function.
摘要翻译：提供了频率依赖性流体衰减测量的方法和系统。在某些实施例中，所述方法包括：在参考流体内生成一个或多个参考声学信号; 接收一个或多个参考声信号反射; 至少部分地基于所述一个或多个参考声信号反射来确定频率相关响应函数; 在样品流体内产生一个或多个样本声信号; 接收一个或多个样本声信号反射; 以及至少部分地基于一个或多个样本声信号反射和频率依赖响应函数来确定样本流体的频率依赖衰减函数。

42. 发明申请

WO2016191026A1 IN-SITU BOREHOLE FLUID SPEED AND ATTENUATION MEASUREMENT IN AN ULTRASONIC SCANNING TOOL 审中-公开
标题翻译：超声波扫描工具中的现场钻孔液流速度和衰减测量
公开(公告)号：WO2016191026A1
公开(公告)日：2016-12-01
申请号：PCT/US2016/029738
申请日：2016-04-28
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： MANDAL, Batakrishna
IPC分类号： E21B47/00 , G01V1/40 , G01V1/50
CPC分类号： E21B47/101 , E21B47/0005 , G01V1/46 , G01V2001/526
摘要： An example casing and cement evaluation tool may include a tool body and a rotating portion coupled to the tool body. A first transducer may be coupled to the rotating portion at a radial offset from a longitudinal axis of the tool. A second transducer may be coupled to the rotating portion at a different radial offset from the longitudinal axis of the tool.
摘要翻译：示例性套管和水泥评估工具可以包括工具主体和联接到工具主体的旋转部分。第一换能器可以在与工具的纵向轴线的径向偏移处联接到旋转部分。第二换能器可以以与工具的纵向轴线不同的径向偏移耦合到旋转部分。

43. 发明申请

WO2016191025A1 CASING AND CEMENT EVALUATION TOOL WITH REDUCED TRANSMITTER RINGING 审中-公开
标题翻译：铸造和水泥评估工具与减少发射机的结合
公开(公告)号：WO2016191025A1
公开(公告)日：2016-12-01
申请号：PCT/US2016/029730
申请日：2016-04-28
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： LI, Peng , CHEN, Zheng , MANDAL, Batakrishna
IPC分类号： E21B47/00 , G01V1/40 , G01V1/50
CPC分类号： E21B47/0005 , E21B47/14 , H03F1/34 , H03F3/24 , H04B1/10 , H04B15/02 , H04B2001/0433
摘要： An example cement and casing evaluation tool includes an amplifier and a filter coupled an output of the amplifier. A transducer may be coupled to the output of the filter. A ringing reduction system may be coupled to at least one of the amplifier, the filter, and the transducer, wherein the ringing reduction system selectively dissipates energy from at least one of the amplifier, the filter, and the transducer in response to a control signal.
摘要翻译：示例性的水泥和套管评估工具包括放大器和耦合放大器的输出的滤波器。换能器可以耦合到滤波器的输出端。振铃减小系统可以耦合到放大器，滤波器和换能器中的至少一个，其中响应于控制信号，振铃还原系统选择性地从放大器，滤波器和换能器中的至少一个驱动能量。

44. 发明申请

WO2016191024A1 IMPROVED PULSE GENERATION FOR DOWNHOLE LOGGING 审中-公开
标题翻译：改进的井下测井脉冲发生
公开(公告)号：WO2016191024A1
公开(公告)日：2016-12-01
申请号：PCT/US2016/029722
申请日：2016-04-28
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： LI, Peng , MANDAL, Batakrishna , WIECEK, Boguslaw , CHEN, Zheng
IPC分类号： E21B47/00 , G01V1/40 , G01V1/50
CPC分类号： E21B47/082 , E21B44/005 , G01V1/46 , G01V1/50 , G01V1/52 , G01V2210/10 , G01V2210/12 , H04B11/00
摘要： An example method includes determining a frequency response of a tuned pulse to be transmitted from a transmission element. A matching frequency envelope corresponding to a frequency envelope of the frequency response may be determined. A time domain signal corresponding to the matching frequency envelope may be determined. A series of digital pulses corresponding to the time domain signal may be determined. An analog output at a switching amplifier corresponding to the series of digital pulses may be generated. A transmission element may be excited with the analog output.
摘要翻译：示例性方法包括确定要从传输元件发送的调谐脉冲的频率响应。可以确定对应于频率响应的频率包络的匹配频率包络。可以确定与匹配频率包络相对应的时域信号。可以确定与时域信号对应的一系列数字脉冲。可以产生对应于一系列数字脉冲的开关放大器的模拟输出。传输元件可以用模拟输出激励。

45. 发明申请

WO2016191023A1 METHODS FOR EVALUATING CEMENT BONDING 审中-公开
标题翻译：水泥粘结评估方法
公开(公告)号：WO2016191023A1
公开(公告)日：2016-12-01
申请号：PCT/US2016/029712
申请日：2016-04-28
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： MANDAL, Batakrishna , JAGANNATHAN, Srinivasan
IPC分类号： E21B47/00 , G01V1/40 , G01V1/50
CPC分类号： E21B47/0005 , E21B33/14 , G01V1/306 , G01V1/50 , G01V1/52
摘要： Methods for evaluating cement bonding in a wellbore are provided. An example method for determining cement impedance includes generating one or more acoustic signals within a wellbore comprising a borehole fluid, a casing, and a cement layer. One or more reflections of the acoustic signals may be received from at least a portion of the wellbore, wherein each of the one or more reflections comprises an initial reflection portion and a resonance portion. At least one of the initial reflection portion and the resonance portion may be modified based, at least in part, on an attenuation response of the borehole fluid. An impedance of the cement layer may be determined by analyzing at least one of the modified initial reflection portion and the modified resonance portion.
摘要翻译：提供了一种用于评估井眼中水泥粘结的方法。用于确定水泥阻抗的示例性方法包括在包括井眼流体，壳体和水泥层的井眼内产生一个或多个声学信号。可以从井筒的至少一部分接收声信号的一个或多个反射，其中一个或多个反射中的每一个包括初始反射部分和共振部分。可以至少部分地基于钻孔流体的衰减响应来修改初始反射部分和谐振部分中的至少一个。可以通过分析修改的初始反射部分和修改的共振部分中的至少一个来确定水泥层的阻抗。

46. 发明申请

WO2016144342A1 DETERMINING CHARACTERISTICS OF A FLUID IN A WELLBORE 审中-公开
标题翻译：确定井中流体的特征
公开(公告)号：WO2016144342A1
公开(公告)日：2016-09-15
申请号：PCT/US2015/019845
申请日：2015-03-11
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： RODNEY, Paul F. , ROBERSON, Mark W. , MANDAL, Batakrishna , SHAH, Vimal V. , GOODWIN, Scott
IPC分类号： E21B49/08 , E21B47/12 , G01V9/00
CPC分类号： E21B49/08 , E21B47/011 , E21B47/022 , E21B47/10 , E21B47/12 , E21B2049/085 , G01N27/302
摘要： An assembly for use in a wellbore can include a plurality of sensors positioned external to a casing string. The plurality of sensors can be positioned for detecting an amount of a hydrocarbon that is present in a fluid in the wellbore and a pH of the fluid in the wellbore. The plurality of sensors can be positioned for wirelessly transmitting signals representing the amount of the hydrocarbon that is present in the fluid and the pH of the fluid to a receiving device.
摘要翻译：用于井筒的组件可以包括位于套管柱外部的多个传感器。多个传感器可以被定位用于检测存在于井眼中的流体中的烃的量和井眼中的流体的pH。多个传感器可以被定位成将表示流体中存在的烃的量和流体的pH的信号无线传输到接收装置。

47. 发明申请

WO2016123432A1 PEAK TRACKING AND REJECTION IN ACOUSTIC LOGS 审中-公开
标题翻译：声音记录中的峰值跟踪和抑制
公开(公告)号：WO2016123432A1
公开(公告)日：2016-08-04
申请号：PCT/US2016/015535
申请日：2016-01-29
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： GOODYEAR, Grant Philip , WALKER, Kristoffer Thomas , MANDAL, Batakrishna
IPC分类号： E21B47/00 , G01V1/40 , G01V1/50
CPC分类号： G01V1/50 , G01V2200/14 , G01V2200/16 , G01V2210/41 , G01V2210/47 , G01V2210/6169 , G01V2210/6222 , G01V2210/641
摘要： Disclosed herein is an approach to improving the accuracy of signal-peak tracking in acoustic logs by supplementing a semblance method used to detect signal peaks in individual coherence-, correlation- or amplitude-based semblance maps with consistency checks based on rock-physics constraints and/or based on history and/or future data for the signal of interest.
摘要翻译：本文公开了一种通过在基于岩石物理学约束的一致性检查中补充用于检测基于相干或相关或基于振幅的相似图中的信号峰值的相似方法来提高声学原始信号峰值跟踪精度的方法， /或基于感兴趣的信号的历史和/或未来数据。

48. 发明申请

WO2015187165A1 LOCATING A DOWNHOLE TOOL IN A WELLBORE 审中-公开
标题翻译：在井中定位一个井下工具
公开(公告)号：WO2015187165A1
公开(公告)日：2015-12-10
申请号：PCT/US2014/041114
申请日：2014-06-05
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： GAO, Li , RAVI, Krishna , MANDAL, Batakrishna
IPC分类号： E21B33/12 , E21B47/04
CPC分类号： E21B47/091 , E21B33/1208 , E21B33/14 , E21B33/16 , E21B47/16 , E21B47/18 , E21B47/187
摘要： A downhole cement plug includes a casing collar locator (CCL) operable to generate signals indicative of casing collars on a downhole casing string of a wellbore system; a controller communicably coupled to the CCL to output a plurality of distinct frequency signals based on the signals from the casing collar locator; and a signal generator communicably coupled to the controller to receive the plurality of distinct frequency signals from the controller and transmit the plurality of distinct frequency signals to a terranean surface through a portion of a wellbore system.
摘要翻译：井下水泥塞包括壳体套管定位器（CCL），其可操作以产生指示井筒系统的井下套管柱上的套管套环的信号; 可控制地耦合到CCL的控制器，其基于来自壳体套环定位器的信号输出多个不同的频率信号; 以及信号发生器，其可通信地耦合到所述控制器以从所述控制器接收所述多个不同的频率信号，并且通过井筒系统的一部分将所述多个不同的频率信号发射到地下表面。

49. 发明申请

WO2014204456A1 ACOUSTIC MONITORING OF WELL STRUCTURES 审中-公开
标题翻译：良好结构的声学监测
公开(公告)号：WO2014204456A1
公开(公告)日：2014-12-24
申请号：PCT/US2013/046621
申请日：2013-06-19
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： MANDAL, Batakrishna
IPC分类号： E21B47/14 , E21B47/0224 , E21B47/107
CPC分类号： E21B47/16 , E21B47/0005
摘要： An embodiment of a monitoring system for inspecting underground well structures includes a transmitter, a receiver, a processing module, and a power supply. The monitoring system is used to monitor pipe casings and structures surrounding the exterior of the pipe casings of a well. During operation, the transmitter directs time dependent energy radially towards a portion of a pipe casing, and the receiver measures energy that is returns to the system. The processing module amplifies, digitizes, and analyses the measurements of energy to produce monitoring information regarding the well structures.
摘要翻译：用于检查地下井结构的监视系统的实施例包括发射机，接收机，处理模块和电源。监测系统用于监测井的管壳外部的管壳和结构。在运行期间，发射器对管壳的一部分径向引导时间相关的能量，并且接收器测量返回到系统的能量。处理模块放大，数字化和分析能量测量，以产生关于井结构的监测信息。

50. 发明申请

WO2003060559A2 ACOUSTIC LOGGING TOOL HAVING PROGRAMMABLE SOURCE WAVEFORMS 审中-公开
标题翻译：具有可编程源波形的声学记录工具
公开(公告)号：WO2003060559A2
公开(公告)日：2003-07-24
申请号：PCT/US2002/040756
申请日：2002-12-20
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： WISNIEWSKI, Laurence, T. , VARSAMIS, Georgios, L. , MANDAL, Batakrishna
IPC分类号： G01V
CPC分类号： G01V1/52 , G01V1/44 , H04R3/04
摘要： An acoustic tool that provides a programmable source waveform is disclosed. Numerous advantages may be achieved from the configurability of the source waveform. Notably, acoustic logs at multiple frequencies may be acquired with a single pass. The waveform may be frequency-adapted to maximize formation response and amplitude adapted for gain control. In one embodiment, the acoustic tool comprises: a controller, a digital-to-analog controller (DAC), an acoustic transducer, and a linear driver. The DAC converts a digital waveform from the controller into an analog waveform. The acoustic transducer converts an electrical signal into an acoustic signal. The linear driver receives the analog waveform from the DAC and responsively provides the electrical signal to the acoustic transducer. The electrical signal is proportional to the analog waveform. The tool may further include a memory for storing the digital waveform and/or software for generating the digital waveform.
摘要翻译：公开了一种提供可编程源波形的声学工具。可以从源波形的可配置性获得许多优点。值得注意的是，可以通过单次通过获得多个频率的声学记录。波形可以是频率适应的，以最大化形成响应和适于增益控制的幅度。在一个实施例中，声学工具包括：控制器，数模转换器（DAC），声换能器和线性驱动器。 DAC将数字波形从控制器转换为模拟波形。声换能器将电信号转换成声信号。线性驱动器从DAC接收模拟波形，并响应于将电信号提供给声学换能器。电信号与模拟波形成正比。该工具还可以包括用于存储用于产生数字波形的数字波形和/或软件的存储器。

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