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1.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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2.发明授权System and method for processing acoustic signals to image behind reflective layers 失效将声信号处理成反射层后的图像的系统和方法
公开(公告)号：US5995447A
公开(公告)日：1999-11-30
申请号：US856114
申请日：1997-05-14
CPC分类号： G01V1/44
摘要： A system for acoustically imaging a target region behind an acoustically reflective layer includes a transducer configuration for acquiring acoustic image data from the reflective layer and target region, wherein the reflective layer and target region are divided into voxels circumferentially disposed about a central point. The system includes a mechanism for processing the data comprising a transmitting transducer for transmitting a first acoustic pulse, a receiving transducer for detecting a first arrival of a first acoustic reflection signal associated with the first acoustic pulse, and a mechanism for suppressing multiple reflected signals from the acoustic reflection signal associated with the first acoustic pulse, wherein the suppressing mechanism facilitates the acquisition of image data from the target region. The system may also include a mechanism which filters and compresses acoustic data downhole, transmits data uphole and which reassembles data uphole for conversion into an image on standard computer display equipment.
摘要翻译： 用于对声反射层后面的目标区域进行声学成像的系统包括用于从反射层和目标区域获取声像数据的换能器配置，其中反射层和目标区域被分成围绕中心点周向设置的体元。 该系统包括用于处理数据的机构，该机构包括用于发送第一声学脉冲的发射换能器，用于检测与第一声学脉冲相关联的第一声反射信号的第一次到达的接收换能器，以及用于抑制来自 与第一声学脉冲相关联的声反射信号，其中抑制机构有助于从目标区域获取图像数据。 该系统还可以包括一个机构，用于对井下的声学数据进行滤波和压缩，在井上传输数据，并重新组装数据，以便在标准计算机显示设备上转换为图像。
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3.发明授权System and method for providing dual distance transducers to image behind an acoustically reflective layer 失效用于提供双距离换能器以在声反射层之后成像的系统和方法
公开(公告)号：US6125079A
公开(公告)日：2000-09-26
申请号：US856113
申请日：1997-05-14
CPC分类号： G01V1/44
摘要： A transducer configuration for use in acoustically imaging a target region behind an acoustically reflective layer includes a sonde having a geometrical center and constructed and arranged to support a plurality of transducers. The system includes a first transducer disposed within the sonde at a first distance from the geometrical center for generating a first acoustic pulse and for receiving a first acoustic signal. The acoustic signal comprises a first reflection from the reflective surface, a first set of fluid multiples arising from reflections between the reflective layer and a surface of the first transducer, and a first signal associated with the target area. The system also includes a second transducer disposed within the sonde at a second distance from the geometrical center for generating a second acoustic pulse and for receiving a second acoustic signal. The second acoustic comprises a second reflection from the reflective surface, a second set of fluid multiples arising from reflections between the reflective layer and a surface of the second transducer and a second signal associated with the target area. A mechanism for receiving and processing signals received by the first and second transducers at time intervals which occur between receipt of the first and second sets of fluid multiples, respectively, wherein signal values at time intervals between receipt of fluid multiples provide acoustic waveforms associated with the target region. Each target region, therefore, has a time interval on at least one of the two waveforms which is free of fluid multiples.
摘要翻译： 用于对声反射层后面的目标区域进行声学成像的换能器配置包括具有几何中心并被构造和布置成支撑多个换能器的探空器。 该系统包括设置在探头内距离几何中心第一距离处的第一换能器，用于产生第一声脉冲并用于接收第一声信号。 声信号包括来自反射表面的第一反射，由反射层和第一换能器的表面之间的反射产生的第一组流体倍数，以及与目标区域相关联的第一信号。 系统还包括设置在探头内距离几何中心第二距离处的第二换能器，用于产生第二声脉冲并接收第二声信号。 第二声波包括来自反射表面的第二反射，由反射层和第二换能器的表面之间的反射产生的第二组流体倍数和与目标区域相关联的第二信号。 一种用于分别接收和处理由第一和第二组流体倍数接收之间出现的时间间隔由第一和第二换能器接收的信号的机构，其中在接收流体倍数之间的时间间隔处的信号值提供与 目标区域。 因此，每个目标区域在没有流体倍数的两个波形中的至少一个上具有时间间隔。
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4.发明授权Dipole/monopole acoustic transmitter, methods for making and using same in down hole tools 有权偶极/单极声发射器，在井下工具中制作和使用相同的方法
公开(公告)号：US6102152A
公开(公告)日：2000-08-15
申请号：US335988
申请日：1999-06-18
CPC分类号： G01V1/52
摘要： A sonic or acoustic tool is disclosed which includes a transmitter with reduced transmitter spawned noise. The transmitters are either monopole or dipole depending on the orientation of ports in a chamber divided by a piston driven by an actuator. The transmitter size is limited only by the diameter of the tools itself because the transmitters are oriented within the tool parallel to the axis of the tool.
摘要翻译： 公开了一种声音或声学工具，其包括具有减小的发射器产生噪声的发射器。 发射器是单极或偶极，这取决于腔室中的端口的方向，除以由致动器驱动的活塞。 变送器尺寸仅由工具本身的直径限制，因为变送器在平行于工具轴线的工具内定向。
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公开(公告)号：US6021093A
公开(公告)日：2000-02-01
申请号：US856112
申请日：1997-05-14
CPC分类号： G01V1/44
摘要： A transducer configuration of an acoustic sensing tool for determining the consistency of a first medium disposed between a layer having a greater acoustic reflectivity than the first medium and a second medium, the sensing tool including a rotating head, wherein the tool comprises first, second and third transducer pairs in a spaced apart configuration, each pair comprising a transmitting transducer for transmitting an acoustic radiation signal in an insonified zone, and receiving transducer having a receiving radiation pattern in a insonified zone, wherein the space between the transmitting and receiving transducers in each pair is constructed and arranged to allow the transmitting and receiving insonified zones to intersect behind but not in the acoustically reflective layer to null reverberation energy therefrom. The tool also includes a centerline of radiation from each transmitting transducer that propagates and refracts through the reflective layer such that all transmitting centerlines intersect in an intersection near voxel, wherein the intersection voxel is interrogated by all three transducer pairs substantially simultaneously at nearly a single azimuthal head position, such that any occlusion is interrogated from three different directions, thereby facilitating determination of occlusion surface orientation.
摘要翻译： 用于确定布置在具有比第一介质更大的声反射率的层之间的第一介质和第二介质的一致性的声学感测工具的传感器配置，所述感测工具包括旋转头，其中所述工具包括第一和第二介质 第三传感器对以间隔开的配置，每对包括用于在未加密区域中传输声辐射信号的发射换能器，以及在第一增强区域中接收具有接收辐射图的换能器，其中每个发射和接收换能器之间的空间 对被构造和布置成允许发送和接收的声音区域在后面而不是在声反射层中相交，以消除其中的混响能量。 该工具还包括来自每个发射换能器的辐射的中心线，其传播和折射通过反射层，使得所有发射中心线在体素附近的交叉点相交，其中所述三个换能器对基本同时以几乎一个方位角询问交叉体素 头位置，使得从三个不同方向询问任何闭塞，从而有助于确定闭塞表面取向。
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公开(公告)号：US6026913A
公开(公告)日：2000-02-22
申请号：US940352
申请日：1997-09-30
IPC分类号： E21B47/022 , E21B47/02
CPC分类号： E21B47/02208
摘要： The invention is a device and related method of finding from at least one receiver the location of a source of a transmitted acoustic signal. Both signal source and signal receiver are downhole. The invention uses either or both the triangulation method and the holographic method to determine signal location.The triangulation technique uses the relationships existing in Pythagorean's theorem to find source location. In contrast, the holographic technique uses a known velocity structure to assign propagation velocities to volume cells surrounding the receiver. By variational calculus, a ray path and start time may be assigned to a hypothetical source location for a particular receiver position. This is repeated for each receiver position. Where the hypothetical source locations and start times match for multiple receiver locations, the likely position of a source has been found.
摘要翻译： 本发明是从至少一个接收机发现所发送的声信号的源的位置的装置和相关方法。 信号源和信号接收器都是井下的。 本发明使用三角测量方法和全息方法中的一个或两者来确定信号位置。 三角测量技术使用毕达哥拉斯定理中存在的关系找到源位置。 相比之下，全息技术使用已知的速度结构来将传播速度分配给接收器周围的体积单元。 通过变分微积分，射线路径和开始时间可被分配给特定接收器位置的假想源位置。 对于每个接收器位置重复这一点。 假设源位置和起始时间与多个接收器位置匹配的情况下，可以找到源的可能位置。
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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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8.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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