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公开(公告)号：US20150142320A1
公开(公告)日：2015-05-21
申请号：US14408774
申请日：2012-08-28
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。
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公开(公告)号：US09631480B2
公开(公告)日：2017-04-25
申请号：US13264336
申请日：2009-07-16
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.
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3.发明授权Acoustic logging-while-drilling tools having a hexapole source configuration and associated logging methods 有权具有六极源配置和相关测井方法的声学测井同时钻孔工具公开(公告)号：US08125848B2
公开(公告)日：2012-02-28
申请号：US11062395
申请日：2005-02-22
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。
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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
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。
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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
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。
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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
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。
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公开(公告)号：US07656747B2
公开(公告)日：2010-02-02
申请号：US11457731
申请日：2006-07-14
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。
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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
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。
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9.发明授权公开(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。
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10.发明授权Sensor configuration for nulling reverberations to image behind reflective layers 失效传感器配置用于使反射层后面的图像归零
公开(公告)号：US6002639A
公开(公告)日：1999-12-14
申请号：US856115
申请日：1997-05-14
CPC分类号： G01V1/44
摘要： A transducer configuration disposed within a wellbore sonde for acoustically imaging a target region behind an acoustically reflective layer includes a transmitting transducer for producing a transmitted acoustic beamspread pattern defined by a insonified zone having a width approximately equal to a width of the transmitting transducer and a transmitting main lobe beyond the transmitting collimated zone. The transducer configuration also includes a receiving transducer disposed adjacent the transmitting transducer. The receiving transducer includes an acoustic signal reception pattern defined by a insonified zone having a width approximately equal to a width of the receiving transducer and a receiving main lobe beyond the receiving insonified zone. A beamspread angle defines an amplitude contour forming an outer periphery of the transmitting and receiving main lobes. Intersection of the transmitting and receiving main lobes behind but not within an acoustically reflective layer allows the transducer configuration to null reverberation energy from the acoustically reflective material and enhance acoustic energy received from the less reflective material disposed behind the highly reflective material.
摘要翻译： 设置在井筒探测器内的换能器配置用于对声反射层后面的目标区域进行声学成像，包括发射换能器，用于产生由具有大致等于发射换能器的宽度的宽度的扩散区限定的透射声束扩展图案， 主瓣超出发射准直区。 换能器配置还包括邻近发射换能器设置的接收换能器。 接收换能器包括由具有近似等于接收换能器的宽度的宽度的增强区限定的声学信号接收图案和超出接收声音区的接收主瓣。 光束展开角度定义了形成发射和接收主瓣的外周的振幅轮廓。 发射和接收主波瓣在后面但不在声反射层内的交叉允许换能器配置将来自声反射材料的混响能量消除，并增强从设置在高反射材料后面的较小反射材料接收的声能。
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