公开(公告)号：US20130163387A1

公开(公告)日：2013-06-27

申请号：US13821847

申请日：2011-09-09

申请人： Batakrishna Mandal ,  Chen Li

发明人： Batakrishna Mandal ,  Chen Li

IPC分类号： G01V1/02 ,  H01L41/04

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。

公开(公告)号：US09541657B2

公开(公告)日：2017-01-10

申请号：US13821847

申请日：2011-09-09

申请人： Batakrishna Mandal ,  Chen Li

发明人： Batakrishna Mandal ,  Chen Li

IPC分类号： G01V1/06 ,  G01V1/02 ,  H01L41/04 ,  H01L41/09

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。

公开(公告)号：US09631480B2

公开(公告)日：2017-04-25

申请号：US13264336

申请日：2009-07-16

申请人： Paul Cooper ,  Kristopher V Sherrill ,  Ricardo Ortiz ,  Daniel Flores ,  Batakrishna Mandal

发明人： Paul Cooper ,  Kristopher V Sherrill ,  Ricardo Ortiz ,  Daniel Flores ,  Batakrishna Mandal

IPC分类号： E21B47/10

CPC分类号： E21B47/101

摘要： Apparatus, systems, and methods may operate to emit acoustic pulses into a drilling fluid in a well bore, using a first acoustic transducer in a downhole tool, and detecting the acoustic pulses after reflection from the wall of the well bore, using a second acoustic transducer in the downhole tool. The faces of the first and second acoustic transducers are non-parallel. Further activities include emitting additional acoustic pulses into the drilling fluid using the second acoustic transducer, and detecting them using the second acoustic transducer. The acoustic velocity of the drilling fluid can be determined based on respective travel times. Additional apparatus, systems, and methods are described.

公开(公告)号：US08125848B2

公开(公告)日：2012-02-28

申请号：US11062395

申请日：2005-02-22

申请人： Theodorus W. Geerits ,  Batakrishna Mandal ,  Denis P. Schmitt

发明人： Theodorus W. Geerits ,  Batakrishna Mandal ,  Denis P. Schmitt

IPC分类号： G01V1/00

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。

公开(公告)号：US20110192597A1

公开(公告)日：2011-08-11

申请号：US13031513

申请日：2011-02-21

申请人： Craig W. RODDY ,  Rick Covington ,  Krishna M. Ravi ,  Clovis Bonavides ,  Gary Frisch ,  Batakrishna Mandal

发明人： Craig W. RODDY ,  Rick Covington ,  Krishna M. Ravi ,  Clovis Bonavides ,  Gary Frisch ,  Batakrishna Mandal

IPC分类号： E21B47/00 ,  E21B33/13

CPC分类号： E21B33/13 ,  E21B43/25 ,  E21B47/0005 ,  E21B47/01 ,  E21B47/10 ,  E21B47/122

摘要： A method of servicing a wellbore, comprising placing a plurality of Micro-Electro-Mechanical System (MEMS) sensors in a wellbore composition, pumping the wellbore composition into the wellbore at a flow rate, determining velocities of the MEMS sensors along a length of the wellbore, and determining an approximate cross-sectional area profile of the wellbore along the length of the wellbore from at least the velocities of the MEMS sensors and the fluid flow rate. A method of servicing a wellbore, comprising placing a plurality of Micro-Electro-Mechanical System (MEMS) sensors in a wellbore composition, pumping the wellbore composition into the wellbore, determining positions of the MEMS sensors relative to one or more known positions along a length of the wellbore, and determining an approximate cross-sectional area profile of the wellbore along the length of the wellbore from at least the determined positions of the MEMS sensors.

摘要翻译： 一种维修井眼的方法，包括将多个微机电系统（MEMS）传感器放置在井眼组合物中，以将井筒组合物以流速泵送到井眼中，确定MEMS传感器沿着长度为 井筒，并且从至少MEMS传感器的速度和流体流速确定沿着井眼的长度的井筒的近似横截面面积轮廓。 一种维修井筒的方法，包括将多个微机电系统（MEMS）传感器放置在井筒组合物中，将井筒组合物泵送到井眼中，确定MEMS传感器相对于沿着一个或多个已知位置的一个或多个已知位置的位置 并且从至少所述MEMS传感器的所确定的位置确定所述井眼沿所述井眼的长度的近似横截面面积轮廓。

公开(公告)号：US20110186290A1

公开(公告)日：2011-08-04

申请号：US13031535

申请日：2011-02-21

申请人： Craig W. RODDY ,  Rick Covington ,  Krishna M. Ravi ,  Clovis Bonavides ,  Michael Bittar ,  Gordon Moake ,  Batakrishna Mandal

发明人： Craig W. RODDY ,  Rick Covington ,  Krishna M. Ravi ,  Clovis Bonavides ,  Michael Bittar ,  Gordon Moake ,  Batakrishna Mandal

IPC分类号： E21B47/00 ,  E21B33/13

CPC分类号： E21B47/0005 ,  E21B41/0085 ,  E21B43/25 ,  E21B47/01 ,  E21B47/09 ,  E21B47/10

摘要： A method of servicing a wellbore, comprising placing a wellbore composition comprising a plurality of Micro-Electro-Mechanical System (MEMS) sensors in the wellbore, placing a plurality of acoustic sensors in the wellbore, obtaining data from the MEMS sensors and data from the acoustic sensors using a plurality of data interrogation units spaced along a length of the wellbore, and transmitting the data obtained from the MEMS sensors and the acoustic sensors from an interior of the wellbore to an exterior of the wellbore. A method of servicing a wellbore, comprising placing a wellbore composition comprising a plurality of Micro-Electro-Mechanical System (MEMS) sensors in the wellbore, and obtaining data from the MEMS sensors using a plurality of data interrogation units spaced along a length of the wellbore, wherein one or more of the data interrogation units is powered by a turbo generator or a thermoelectric generator located in the wellbore.

摘要翻译： 一种维修井筒的方法，包括将包含多个微机电系统（MEMS）传感器的井筒组合物放置在井筒中，将多个声传感器放置在井筒中，从MEMS传感器获得数据和从 使用沿着井眼的长度间隔开的多个数据询问单元的声学传感器，以及将从MEMS传感器和声学传感器获得的数据从井眼的内部传送到井眼的外部。 一种维修井筒的方法，包括将包含多个微机电系统（MEMS）传感器的井筒组合物放置在井眼中，以及使用沿着长度为的长度间隔开的多个数据询问单元从MEMS传感器获得数据 井筒，其中一个或多个数据询问单元由位于井眼中的涡轮发电机或热电发电机供电。

公开(公告)号：US20100073189A1

公开(公告)日：2010-03-25

申请号：US12520798

申请日：2007-09-07

申请人： Batakrishna Mandal ,  Clovis Bonavides ,  Carl Dodge ,  Syed Ali ,  Alberto Quintero

发明人： Batakrishna Mandal ,  Clovis Bonavides ,  Carl Dodge ,  Syed Ali ,  Alberto Quintero

IPC分类号： G01V3/00 ,  H02P6/18

CPC分类号： G01V11/002 ,  E21B47/12

摘要： In some embodiments, apparatus and systems, as well as methods, may operate to acquire downhole data associated with a borehole casing, process a portion of the downhole data at a downhole location to provide processed data, regulate surface motor power received at a motor downhole, filter the surface motor power, and transmit the processed data to a surface location on a monoconductor that also carries the surface motor power. Additional apparatus, systems, and methods are disclosed.

摘要翻译： 在一些实施例中，装置和系统以及方法可以操作以获取与钻孔套管相关联的井下数据，在井下位置处理井下数据的一部分以提供经处理的数据，调节在井下电机处接收的表面马达功率 ，过滤表面电机功率，并将处理后的数据传输到也带有表面电机功率的单体电感器上的表面位置。 公开了附加装置，系统和方法。

公开(公告)号：US07656747B2

公开(公告)日：2010-02-02

申请号：US11457731

申请日：2006-07-14

申请人： Batakrishna Mandal ,  Clovis S. Bonavides

发明人： Batakrishna Mandal ,  Clovis S. Bonavides

IPC分类号： G01V1/44 ,  G01V1/50

CPC分类号： G01V1/306 ,  G01N29/11 ,  G01N29/348 ,  G01N29/4427 ,  G01N29/46 ,  G01N2291/02863 ,  G01N2291/044 ,  G01V1/00 ,  G01V1/40 ,  G01V2210/542

摘要： An ultrasonic imaging method is provided. A wideband acoustic pulse is fired at a wall. A wideband response signal is received. The wideband response signal is processed to select an impedance measurement frequency. A wavelet having a characteristic frequency approximately equal to the impedance measurement frequency is fired. A wavelet response signal is received. A reflection coefficient is determined from the wavelet response signal. An impedance measurement is calculated from the reflection coefficient. Related tools and systems are also disclosed.

摘要翻译： 提供超声成像方法。 在墙壁上发射一个宽带的声脉冲。 接收宽带响应信号。 处理宽带响应信号以选择阻抗测量频率。 具有大致等于阻抗测量频率的特征频率的小波被点燃。 接收小波响应信号。 根据小波响应信号确定反射系数。 根据反射系数计算阻抗测量值。 还公开了相关的工具和系统。

公开(公告)号：US20060175057A1

公开(公告)日：2006-08-10

申请号：US11054217

申请日：2005-02-09

申请人： Batakrishna Mandal ,  Michael Bittar

发明人： Batakrishna Mandal ,  Michael Bittar

IPC分类号： E21B25/16

CPC分类号： G01V1/46 ,  E21B47/01 ,  G01V3/265

摘要： A method for logging a well is provided. The method includes receiving energy with at least one array of elements coupled to a drill bit, wherein the at least one array of elements functions as an electronic array. An apparatus for logging a well is also provided. The apparatus includes a drill bit and at least one array of elements coupled to the drill bit, wherein the at least one array of elements functions as an electronic array.

摘要翻译： 提供了一种记录井的方法。 该方法包括用耦合到钻头的至少一个元件阵列接收能量，其中所述至少一个元件阵列用作电子阵列。 还提供了用于记录井的装置。 该装置包括钻头和耦合到钻头的至少一个元件阵列，其中所述至少一个元件阵列用作电子阵列。

公开(公告)号：US06712138B2

公开(公告)日：2004-03-30

申请号：US09927067

申请日：2001-08-09

申请人： Batakrishna Mandal

发明人： Batakrishna Mandal

IPC分类号： E21B4706

CPC分类号： G01N29/46 ,  E21B49/003 ,  G01N29/024 ,  G01N29/30 ,  G01N29/4418 ,  G01N2291/02818 ,  G01N2291/045

摘要： The acoustic impedance of the drilling fluid may be found using reflections from a precise metal disk, and therefrom the density of the drilling fluid. Because the reverberation characteristics of an acoustic wave depend in part on the acoustic wave shape, the first reflection from the metal disk may be used to calibrate the measurement. A method for determining a borehole fluid property is disclosed that includes (i) generating an acoustic signal within a borehole fluid, (ii) receiving reflections of the acoustic signal from the fluid, and (iii) analyzing a reverberation portion of the acoustic signal to determine the property. The analyzing of the reverberation portion may include obtaining a theoretical reverberation signal and relating the measured reverberation signal with the theoretical reverberation signal to determine the borehole fluid property.

摘要翻译： 可以使用来自精密金属盘的反射以及钻井液的密度来发现钻井液的声阻抗。 由于声波的混响特性部分地取决于声波形状，所以可以使用来自金属盘的第一反射来校准测量。 公开了一种用于确定井眼流体性质的方法，其包括（i）在井眼流体内产生声学信号，（ii）从流体接收声学信号的反射，以及（iii）将声学信号的混响部分分析成 确定属性。 混响部分的分析可以包括获得理论混响信号并将测量的混响信号与理论混响信号相关联以确定井眼流体性质。