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公开(公告)号：US06614716B2
公开(公告)日：2003-09-02
申请号：US09741574
申请日：2000-12-19
IPC分类号： G01V128
摘要： A method for determining properties of an earth formation surrounding an earth borehole that involves: providing a logging device moveable through the borehole; transmitting sonic energy into the formation; receiving sonic energy that has traveled through the formation; producing signals representative of the received sonic energy; determining whether the formation is anisotropic; determining whether the formation is inhomogeneous; and outputting a characterization of the formation as one of the following types: isotropic/homogeneous, anisotropic/homogeneous, isotropic/inhomogeneous, and anisotropic/inhomogeneous.
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公开(公告)号：US06526354B2
公开(公告)日：2003-02-25
申请号：US09741573
申请日：2001-02-01
IPC分类号： G01V140
CPC分类号： G01V1/44
摘要： A method for determining alteration of a region of an earth formation surrounding an earth borehole, comprising the steps of providing a logging device that is moveable through the borehole; transmitting sonic energy into the formation and receiving, at a plurality of transmitter-to-receiver spacings, sonic energy that has traveled through the formation, and producing signals representative of the received sonic energy for the plurality of transmitter-to-receiver spacings; determining sonic transit times and differential transit times for the respective transmitter-to-receiver spacings; deriving a test statistic from the differential transit times; and determining the presence of alteration of a region of the formations from the test statistic. An associated apparatus for carrying out the method is also described.
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3.发明申请Methods and Apparatus to Process Time Series Data for Propagating Signals in A Subterranean Formation 审中-公开用于处理地层中传播信号的时间序列数据的方法和装置公开(公告)号：US20120201096A1
公开(公告)日：2012-08-09
申请号：US13497252
申请日：2010-10-27
申请人： Henri-Pierre Valero , Sandip Bose , Jiaqi Yang , Bikash K. Sinha , Tarek M. Habashy , Andrew Hawthorn
发明人： Henri-Pierre Valero , Sandip Bose , Jiaqi Yang , Bikash K. Sinha , Tarek M. Habashy , Andrew Hawthorn
IPC分类号： G01V1/40
CPC分类号： G01V1/44
摘要： Methods and apparatus to process time series data for propagating signals in a subterranean formation are disclosed. An example method described herein for processing measured data comprises receiving a time series of measured data obtained by sensing a propagating signal, the propagating signal having passed through a subterranean formation, transforming the time series of measured data to generate a time-frequency representation of the time series, and processing the time-frequency representation to at least one of reduce noise in the time frequency representation, or enhance a component of the propagating signal present in the time-frequency representation.
摘要翻译： 公开了处理地层中传播信号的时间序列数据的方法和装置。 本文描述的用于处理测量数据的示例性方法包括接收通过感测传播信号获得的测量数据的时间序列，传播信号已经通过地下地层，变换测量数据的时间序列以产生时间序列 时间序列，并且将时间频率表示处理为时间频率表示中的减少噪声中的至少一个，或增强存在于时间频率表示中的传播信号的分量。
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公开(公告)号：US06718266B1
公开(公告)日：2004-04-06
申请号：US10284612
申请日：2002-10-31
申请人： Bikash K. Sinha , Sandip Bose , Xiaojun Huang
发明人： Bikash K. Sinha , Sandip Bose , Xiaojun Huang
IPC分类号： G01V128
CPC分类号： G01V1/48
摘要： A method for determining formation shear slowness of formations surrounding an earth borehole that includes: transmitting sonic energy into the formations from a dipole source in the borehole; measuring signals from orthogonal wave components that have traveled through the formations at each of a plurality of receiver locations in the borehole, spaced at a respective plurality of distances from the transmitter location; transforming the signals to the frequency domain and separating dispersive and non-dispersive portions of the transformed signals; and determining fast and slow shear slowness of the formation from the low frequency asymptotes of the dispersive portions of the transformed signals. Related methods for determining shear directionality and the magnitude of anisotropy of anisotropic formations surrounding an earth borehole and associated apparatus are also described.
摘要翻译： 确定地球钻孔周围地层形成剪切慢度的方法，其包括：将声能从井眼中的偶极源传播到地层中; 测量来自在穿过钻孔中的多个接收器位置中的每一个处的地层的正交波分量的信号，其间隔距离发射机位置相应的多个距离; 将信号变换到频域并分离变换信号的色散和非色散部分; 以及从变换信号的色散部分的低频渐近线确定地层的快速和慢剪切慢度。 还描述了用于确定剪切方向性和围绕地球钻孔及相关联装置的各向异性形状的各向异性的大小的相关方法。
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公开(公告)号：US20120307596A1
公开(公告)日：2012-12-06
申请号：US13152189
申请日：2011-06-02
CPC分类号： H02M3/1563 , E21B47/00 , G01V1/159 , G01V1/42 , H04B11/00
摘要： Systems, methods, and apparatus to drive reactive loads are disclosed. An example apparatus to drive a reactive load includes a reactive component in circuit with the reactive load, a first switching element in circuit with the reactive load to selectively hold the reactive load in a first energy state and to selectively allow the reactive load to change from the first energy state to a second energy state, a second switching element in circuit with the reactive load to selectively hold the reactive load in the second energy state and to selectively allow the reactive load to change from the second energy state to the first energy state, and a controller to detect a current in the reactive load, and to control the first and second switching elements to hold the reactive load in the first or the second energy state when the current traverses a threshold.
摘要翻译： 公开了用于驱动无功负载的系统，方法和装置。 驱动无功负载的示例性装置包括具有无功负载的电路中的无功分量，具有无功负载的电路中的第一开关元件，以选择性地将无功负载保持在第一能量状态并且选择性地允许无功负载从 第一能量状态到第二能量状态，第二开关元件在电路中具有无功负载以选择性地将无功负载保持在第二能量状态，并且选择性地允许无功负载从第二能量状态改变到第一能量状态 以及控制器，用于检测无功负载中的电流，并且当电流横穿阈值时，控制第一和第二开关元件将无功负载保持在第一或第二能量状态。
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公开(公告)号：US08199609B2
公开(公告)日：2012-06-12
申请号：US12367866
申请日：2009-02-09
IPC分类号： G01V1/00
CPC分类号： G01V1/40 , B06B1/0607
摘要： A multimode acoustic source device for disposition in a borehole formed in a subterranean formation is aligned along an axial axis of the borehole and has a plurality of radiating plates circumferentially disposed about the axial axis. A drive mechanism is proposed to independently and reversibly move each radiating plate from a first position to a second position in a direction transverse to the axial axis. This enables the multimode source to generate each of several azimuthal modes for logging a subterranean formation.
摘要翻译： 用于配置在地层中形成的钻孔中的多模声源装置沿着钻孔的轴线对准，并且具有围绕轴向轴向周向设置的多个辐射板。 提出了一种驱动机构，用于在横向于轴向的方向上将每个辐射板从第一位置独立地和可逆地移动到第二位置。 这使得多模源能够产生用于记录地下地层的几种方位角模式中的每一种。
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公开(公告)号：US07649805B2
公开(公告)日：2010-01-19
申请号：US11854405
申请日：2007-09-12
申请人： Sandip Bose , Henri-Pierre Valero , Shuchin Aeron
发明人： Sandip Bose , Henri-Pierre Valero , Shuchin Aeron
IPC分类号： G01V1/00
CPC分类号： G01V1/48
摘要： This invention pertains to the extraction of the slowness dispersion characteristics of acoustic waves received by an array of two or more sensors by the application of a continuous wavelet transform on the received array waveforms (data). This produces a time-frequency map of the data for each sensor that facilitates the separation of the propagating components thereon. Two different methods are described to achieve the dispersion extraction by exploiting the time frequency localization of the propagating mode and the continuity of the dispersion curve as a function of frequency. The first method uses some features on the modulus map such as the peak to determine the time locus of the energy of each mode as a function of frequency. The second method uses a new modified Radon transform applied to the coefficients of the time frequency representation of the waveform traces received by the aforementioned sensors. Both methods are appropriate for automated extraction of the dispersion estimates from the data without the need for expert user input or supervision.
摘要翻译： 本发明涉及通过对接收到的阵列波形（数据）应用连续小波变换来提取由两个或更多个传感器的阵列接收的声波的慢度色散特性。 这产生用于每个传感器的数据的时间 - 频率图，其有助于在其上分离传播部件。 描述了两种不同的方法来通过利用传播模式的时间频率定位和作为频率的函数的色散曲线的连续性来实现色散提取。 第一种方法使用诸如峰值的模态图上的一些特征来确定每种模式的能量的时间轨迹作为频率的函数。 第二种方法使用新的修改的Radon变换，其应用于由上述传感器接收的波形迹线的时间频率表示的系数。 这两种方法适用于从数据中自动提取色散估计值，而无需专家用户输入或监督。
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8.发明申请公开(公告)号：US20060233047A1
公开(公告)日：2006-10-19
申请号：US11286790
申请日：2005-11-23
申请人： Smaine Zeroug , Henri-Pierre Valero , Sandip Bose
发明人： Smaine Zeroug , Henri-Pierre Valero , Sandip Bose
IPC分类号： G01V1/40
CPC分类号： G01V1/44
摘要： Methods and apparatus facilitating radial profiling of acoustic slowness of a formation traversed by a borehole are disclosed. According to some aspects of the invention, a radial slowness profile is imaged, including an image of altered region slowness.
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9.发明申请公开(公告)号：US20160281497A1
公开(公告)日：2016-09-29
申请号：US14670040
申请日：2015-03-26
申请人： Peter Tilke , Sandip Bose , Benoit Couet , Jason Wu , Smaine Zeroug
发明人： Peter Tilke , Sandip Bose , Benoit Couet , Jason Wu , Smaine Zeroug
摘要： Methods and systems are provided for modeling an aspect of a hydrocarbon-containing reservoir by constructing a first factor graph having variables and factors that describe the aspect of the hydrocarbon-containing reservoir. The first factor graph is converted to a tree-structured graph that does not have any cycle or loops. The tree-structured graph is converted to a second factor graph that does not contain any cycles or loops, wherein the second factor graph has variables and factors that describe the aspect of the hydrocarbon-containing reservoir. A query on the second factor graph is carried out involving message passing operations that perform probabilistic inference on the second factor graph with regard to the aspect of the hydrocarbon-containing reservoir that is modeled by the second factor graph.
摘要翻译： 提供了用于通过构造具有描述含烃储层的方面的变量和因素的第一因子图来模拟含烃储层的方面的方法和系统。 第一个因子图被转换为没有任何循环或循环的树结构图。 树结构图转换为不包含任何循环或循环的第二因子图，其中第二因子图具有描述含烃储层的方面的变量和因子。 对第二因子图进行查询，涉及消息传递操作，该操作对由第二因子图建模的含烃储层的方面对第二因子图执行概率推断。
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公开(公告)号：US20100202252A1
公开(公告)日：2010-08-12
申请号：US12367866
申请日：2009-02-09
IPC分类号： G01V1/40
CPC分类号： G01V1/40 , B06B1/0607
摘要： A multimode acoustic source device for disposition in a borehole formed in a subterranean formation is aligned along an axial axis of the borehole and has a plurality of radiating plates circumferentially disposed about the axial axis. A drive mechanism is proposed to independently and reversibly move each radiating plate from a first position to a second position in a direction transverse to the axial axis. This enables the multimode source to generate each of several azimuthal modes for logging a subterranean formation.
摘要翻译： 用于配置在地层中形成的钻孔中的多模声源装置沿着钻孔的轴线对准，并且具有围绕轴向轴向周向设置的多个辐射板。 提出了一种驱动机构，用于在横向于轴向的方向上将每个辐射板从第一位置独立地和可逆地移动到第二位置。 这使得多模源能够产生用于记录地下地层的几种方位角模式中的每一种。
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