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11. 发明申请

WO2012034071A1 METHOD OF CONTROLLED PULSE DRIVING OF A STACKED PZT BENDER BAR FOR DIPOLE ACOUSTIC RADIATION 审中-公开
标题翻译：用于DIPOLE ACOUSTIC辐射的堆叠PZT弯曲杆的控制脉冲驱动方法
公开(公告)号：WO2012034071A1
公开(公告)日：2012-03-15
申请号：PCT/US2011/051083
申请日：2011-09-09
申请人： HALLIBURTON ENERGY SERVICES, INC. , MANDAL, Batakrishna , LI, Chen
发明人： MANDAL, Batakrishna , LI, Chen
IPC分类号： H01L41/00
CPC分类号： G01V1/159 , H01L41/04 , H01L41/042 , H01L41/0933
摘要： A bender bar is presented. The bender bar includes at least two pairs of piezoelectric elements arranged on an inert element to adjust the response frequency of the bender bar. In some embodiments, the piezoelectric elements can be stacked on the inert element. In some embodiments, the piezoelectric elements are symmetrically arranged with respect to the bender bar such that a gap is formed between piezoelectric elements arranged on the inert element.
摘要翻译：提供一个弯曲酒吧。弯曲杆包括布置在惰性元件上的至少两对压电元件，以调节弯曲杆的响应频率。在一些实施例中，压电元件可以堆叠在惰性元件上。在一些实施例中，压电元件相对于弯曲杆对称布置，使得在布置在惰性元件上的压电元件之间形成间隙。

12. 发明申请

WO2006091516A1 ACOUSTIC LOGGING-WHILE-DRILLING TOOLS HAVING A HEXAPOLE SOURCE CONFIGURATION AND ASSOCIATED LOGGING METHODS 审中-公开
标题翻译：具有十六进制源配置和相关记录方法的声学记录 - 钻探工具
公开(公告)号：WO2006091516A1
公开(公告)日：2006-08-31
申请号：PCT/US2006/005901
申请日：2006-02-17
申请人： HALLIBURTON ENERGY SERVICES, INC. , GEERITS, Theodorus, W. , MANDAL, Batakrishna , SCHMITT, Denis, P.
发明人： GEERITS, Theodorus, W. , MANDAL, Batakrishna , SCHMITT, Denis, P.
IPC分类号： G01V1/40 , G01V1/44 , G01V1/46 , G01V1/48 , G01V1/52
CPC分类号： G01V1/46 , Y10S367/911
摘要： Multipole acoustic logging-while-drilling (LWD) tools and associated methods are disclosed herein. In some embodiments, the disclosed acoustic LWD tool comprises a transmitter array and at least one receiver array. The transmitter array generates acoustic waves with an excitation pattern having a cutoff frequency greater than about 3 kHz. The receiver array is spaced apart from the transmitter array and is configured to detect said acoustic waves. Some of the disclosed method embodiments comprise: generating multipole acoustic waves in a fluid-filled borehole using an excitation pattern with a cutoff frequency greater than about 3 kHz; selectively detecting acoustic waves that propagate with said excitation pattern; and determining an acoustic shear wave slowness for a formation penetrated by the borehole.
摘要翻译：本文公开了多极声学测井同时钻探（LWD）工具和相关方法。在一些实施例中，所公开的声学LWD工具包括发射器阵列和至少一个接收器阵列。发射器阵列产生具有大于约3kHz的截止频率的激励图案的声波。接收器阵列与发射器阵列间隔开并且被配置为检测所述声波。所公开的方法实施例中的一些包括：使用截止频率大于约3kHz的激励模式在流体填充的钻孔中产生多极声波; 选择性地检测与所述激励图案一起传播的声波; 并确定由钻孔穿透的地层的声剪切波慢度。

13. 发明申请

WO2014035378A1 MEASUREMENT TRANSFORMATION APPARATUS, METHODS, AND SYSTEMS 审中-公开
标题翻译：测量转换装置，方法和系统
公开(公告)号：WO2014035378A1
公开(公告)日：2014-03-06
申请号：PCT/US2012/052689
申请日：2012-08-28
申请人： HALLIBURTON ENERGY SERVICES, INC. , WU, Dagang , SANMARTIN, Luis , MANDAL, Batakrishna
发明人： WU, Dagang , SANMARTIN, Luis , MANDAL, Batakrishna
IPC分类号： G01V1/40 , G01V3/18
CPC分类号： G01V3/38 , G01V3/18 , G01V3/30 , G01V13/00
摘要： In some embodiments, an apparatus and a system, as well as a method and an article, may operate to receive electromagnetic measurement data characterizing a formation from at least one transmitter-receiver pair. Further activity includes transforming the electromagnetic measurement data into transformed measurement data by computing a wavelet transform over the electromagnetic measurement data to provide wavelet coefficients, removing the wavelet coefficients below a selected threshold to provide remaining coefficients, and synthesizing the transformed measurement data by computing a reverse wavelet transform over a combination of the remaining coefficients. Additional apparatus, systems, and methods are described.
摘要翻译：在一些实施例中，设备和系统以及方法和物品可以操作以从至少一个发射机 - 接收机对接收表征地层的电磁测量数据。进一步的活动包括通过计算电磁测量数据上的小波变换来将电磁测量数据变换成变换的测量数据，以提供小波系数，去除低于所选阈值的小波系数以提供剩余系数，以及通过计算反向来合成变换的测量数据通过剩余系数的组合进行小波变换。描述了附加装置，系统和方法。

14. 发明申请

WO2015072976A1 VALIDATION OF CASED-HOLE ACOUSTIC TOOLS 审中-公开
标题翻译：阀体声学工具的验证
公开(公告)号：WO2015072976A1
公开(公告)日：2015-05-21
申请号：PCT/US2013/069719
申请日：2013-11-12
申请人： JIMENEZ, Walmy Cuello , PANG, Xueyu , JONES, Paul , EPSTEIN, Robert Eric , GORDON, Zachary Edward , MANDAL, Batakrishna , GILSTRAP, Tatiana
发明人： JIMENEZ, Walmy Cuello , PANG, Xueyu , JONES, Paul , EPSTEIN, Robert Eric , GORDON, Zachary Edward , MANDAL, Batakrishna , GILSTRAP, Tatiana
IPC分类号： E21B47/007 , E21B49/08 , G01V1/40
CPC分类号： G01N29/09 , E21B33/14 , E21B47/0005 , E21B47/101 , G01N17/00 , G01N2291/0232 , G01V1/40
摘要： In some implementations, a method for validating an acoustic bond-log tool includes having a test fixture including a wellbore casing emulating tubing. An outer tubing emulates a well formation and forms a perimeter of an annulus surrounding the wellbore casing emulating tubing. The wellbore casing tubing is configured with a stepped outer surface emulating different wellbore casing sidewall thicknesses. A dividing structure is coupled in the axial direction to the outer surface of the wellbore casing emulating tubing and to the inner surface of the outer tubing to radially subdivide the annulus into a plurality of hermetically sealable sample sections. Each sample section contains a sample of a material having a known acoustic impedance. The acoustic bond-log tool is validated by comparing a bond-log tool measurement of the acoustic impedance of each sample in a particular sample section to the known acoustic impedance of the sample.
摘要翻译：在一些实施方式中，用于验证声学键合工具的方法包括具有包括井眼套管仿真管道的测试夹具。外管模拟井结构并形成围绕井眼套管仿真管的环的周边。井筒套管配置有模拟不同井眼外壳侧壁厚度的阶梯式外表面。分隔结构在轴向方向上联接到井眼套管仿真管的外表面和外管的内表面，以将环形空间径向细分成多个可气密密封的样品部分。每个样品部分包含具有已知声阻抗的材料的样品。通过将特定样品部分中的每个样品的声阻抗的粘合日志工具测量与样品的已知声阻抗进行比较来验证声键对数工具。

15. 发明申请

WO2010132039A1 ACOUSTIC VELOCITY MEASUREMENTS USING TILTED TRANSDUCERS 审中-公开
标题翻译：使用倾斜传感器的声学速度测量
公开(公告)号：WO2010132039A1
公开(公告)日：2010-11-18
申请号：PCT/US2009/002905
申请日：2009-05-11
申请人： COOPER, Paul , MANDAL, Batakrishna
发明人： COOPER, Paul , MANDAL, Batakrishna
IPC分类号： E21B47/08
CPC分类号： E21B47/082 , G01V1/44
摘要： In some embodiments, a method includes emitting a first acoustic pulse into a drilling fluid in a well bore, using a first acoustic transducer in a downhole tool, wherein a face of the first acoustic transducer is at an angle that is not parallel to an outer surface of the downhole tool. The method includes detecting the first acoustic pulse after the first acoustic pulse has traveled through the drilling fluid and reflected of a wall of the well bore, using a second acoustic transducer in the downhole tool, wherein a face of the second acoustic transducer is approximately parallel with the outer surface of the downhole tool. The method also includes emitting a second acoustic pulse into the drilling fluid in the well bore, using the second acoustic transducer. The method includes detecting the second acoustic pulse after the second acoustic pulse has traveled through the drilling fluid and reflected of the wall of the well bore, using the second acoustic transducer. The method also includes determining an acoustic velocity of the drilling fluid based on a travel time of the first acoustic pulse and a travel time of the second acoustic pulse.
摘要翻译：在一些实施例中，一种方法包括使用井下工具中的第一声换能器将第一声脉冲发射到井眼中的钻井液中，其中第一声换能器的表面处于不平行于外侧的角度井下工具的表面。该方法包括：利用井下工具中的第二声换能器，检测在第一声脉冲已穿过钻井流体并反射井壁的壁之后的第一声脉冲，其中第二声换能器的面近似平行与井下工具的外表面。该方法还包括使用第二声换能器将第二声脉冲发射到井眼中的钻井液中。该方法包括：使用第二声换能器，检测在第二声脉冲已穿过钻井液并被井的壁反射之后的第二声脉冲。该方法还包括基于第一声脉冲的行进时间和第二声脉冲的行进时间来确定钻井液的声速。

16. 发明申请

WO2016191029A1 REAL-TIME ADAPTIVE MINIMUM PHASE WAVELET GENERATION FOR DOWNHOLE TOOLS 审中-公开
标题翻译：实时自适应最小相位波形生成用于井下工具
公开(公告)号：WO2016191029A1
公开(公告)日：2016-12-01
申请号：PCT/US2016/029755
申请日：2016-04-28
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： MANDAL, Batakrishna , LU, Yinghui
IPC分类号： E21B47/00 , G01V1/40 , G01V1/50
CPC分类号： G01V1/50 , E21B47/00 , E21B47/0005
摘要： An example method may include selecting a proposed pulse. A minimum phase wavelet may be generated based, at least in part, on the proposed pulse. A pulse signal within a wellbore may be generated based, at least in part, on the minimum phase wavelet. An echo signal corresponding to the pulse signal from at least a portion of the wellbore may be received, wherein the echo signal is indicative of a wellbore property
摘要翻译：示例性方法可以包括选择所提出的脉冲。可以至少部分地基于所提出的脉冲来生成最小相位小波。可以至少部分地基于最小相位小波来生成井眼内的脉冲信号。可以接收对应于来自井筒的至少一部分的脉冲信号的回波信号，其中回波信号指示井眼性质

17. 发明申请

WO2016144349A1 DOWNHOLE FLUID DETECTION USING SURFACE WAVES 审中-公开
标题翻译：使用表面波的井下流体检测
公开(公告)号：WO2016144349A1
公开(公告)日：2016-09-15
申请号：PCT/US2015/019872
申请日：2015-03-11
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： ROBERSON, Mark W. , RODNEY, Paul F. , MANDAL, Batakrishna , RAVI, Krishna M. , GOODWIN, Scott , SHAH, Vimal V.
IPC分类号： E21B47/12 , E21B49/08 , G01V3/18
CPC分类号： E21B47/101 , G01V3/18
摘要： A communication system that is positionable in a wellbore can include a first transceiver positioned externally to a casing string. The first transceiver can be operable to detect a presence or an absence of a surface wave; determine a location of a fluid in the wellbore based on the presence or the absence of the surface wave; and transmit data indicative of the location to a second transceiver. The surface wave can include an electromagnetic wave that has a magnetic field or an electric field that is non-transverse to a direction of propagation of the surface wave. The communication system can also include the second transceiver, which can be positioned externally the casing string and operable to receive the data.
摘要翻译：可定位在井筒中的通信系统可以包括位于套管柱外部的第一收发器。第一收发器可用于检测表面波的存在或不存在; 基于表面波的存在或不存在，确定井筒中流体的位置; 以及将指示所述位置的数据发送到第二收发器。表面波可以包括具有与表面波的传播方向非横向的磁场或电场的电磁波。通信系统还可以包括第二收发器，其可以定位在套管柱的外部并可操作以接收数据。

18. 发明申请

WO2003060559A3 ACOUSTIC LOGGING TOOL HAVING PROGRAMMABLE SOURCE WAVEFORMS 审中-公开
公开(公告)号：WO2003060559A3
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： G01V1/40
摘要： An acoustic tool (24) that provides a programmable source waveform is disclosed. Acoustic logs at multiple frequencies may be acquired at a single pass. The waveform may be frequency-adapted to maximize formation response and amplitude-adapted for gain control. The tool comprises: a controller (130), a digital-to-analog controller (128), an acoustic transducer (44), and a linear driver. The digital-to-analog controller 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 digital-to-analog controller and responsively provides the electrical signal to the acoustic transducer.

19. 发明申请

WO2016148684A1 MUD SETTLEMENT DETECTION TECHNIQUE BY NON-DESTRUCTIVE ULTRASONIC MEASUREMENTS 审中-公开
标题翻译：非破坏性超声波测量技术的MUD沉降检测技术
公开(公告)号：WO2016148684A1
公开(公告)日：2016-09-22
申请号：PCT/US2015/020753
申请日：2015-03-16
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： MANDAL, Batakrishna , GHOSH, Shubhajit
IPC分类号： E21B49/08 , G01V1/40 , G01N1/10
CPC分类号： G01N29/024 , G01N29/02 , G01N29/4409 , G01N29/4427 , G01N2291/011 , G01N2291/02416 , G01N2291/025 , G01N2291/02836 , G01N2291/02881
摘要： Systems and methods of determining settlement characteristics of a drilling mud are disclosed. Conditions under which heavier elements of the drilling mud settle under the influence of gravity can be determined. Samples of drilling mud can be placed in testing cells, and ultrasonic test pulses can be transmitted through the samples. Responses to the test pulses can be detected and compared to other responses detected at different vertical positions within the testing cell. Settlement can be detected when the responses from different vertical positions are generally dissimilar. An environmental temperature of the testing cell can be changed over a testing time interval, and a settlement temperature can be determined by detecting a divergence in the responses from different vertical positions.
摘要翻译：公开了确定钻井泥浆沉降特性的系统和方法。可以确定在重力作用下钻井泥浆中较重元素沉降的条件。钻井泥浆样品可放置在测试单元中，超声波测试脉冲可通过样品传输。可以检测对测试脉冲的响应，并与在测试单元内的不同垂直位置处检测到的其他响应进行比较。当不同垂直位置的反应通常不相似时，可以检测到沉降。可以在测试时间间隔内改变测试单元的环境温度，并且可以通过检测来自不同垂直位置的响应的发散度来确定沉降温度。

20. 发明申请

WO2016010517A1 ACOUSTIC CALIPERING AND ANALYSIS OF ANNULUS MATERIALS 审中-公开
标题翻译：声学材料的声学计算和分析
公开(公告)号：WO2016010517A1
公开(公告)日：2016-01-21
申请号：PCT/US2014/046623
申请日：2014-07-15
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： MANDAL, Batakrishna
IPC分类号： E21B47/08 , G01V1/40 , G01B17/08
CPC分类号： G01V1/50 , E21B33/14 , E21B47/0005 , E21B47/011 , E21B47/082
摘要： An apparatus and method may operate to mount acoustic sensors, azimuthally offset from each other, to the exterior of a casing. After the casing and acoustic sensors are in the borehole, signals are provided to the acoustic sensors to cause the acoustic sensors to emit acoustic signals into the annulus around the casing. The method further includes detecting reflected compression waves, shear waves or a combination or conversion thereof at the acoustic sensors to generate a set of two]way travel times of the acoustic signals. The method can further include generating distance measurements of a distance between corresponding acoustic sensors and points on the borehole wall, based on the two]way travel times, to determine a position of the casing within the borehole. The method can further include identifying fluids based on the two]way travel times. Additional apparatus, systems, and methods are disclosed.
摘要翻译：装置和方法可以操作以将彼此方位偏移的声学传感器安装到壳体的外部。在壳体和声学传感器在钻孔中之后，向声学传感器提供信号以使声学传感器将声学信号发射到壳体周围的环形空间中。该方法还包括在声学传感器处检测反射的压缩波，剪切波或其组合或转换，以产生声信号的两路行进时间的集合。该方法还可以包括基于两个行进时间来产生相应的声学传感器和井壁上的点之间的距离的距离测量，以确定壳体在钻孔内的位置。该方法还可以包括基于两路行驶时间识别流体。公开了附加装置，系统和方法。

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