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公开(公告)号：US20050222775A1
公开(公告)日：2005-10-06
申请号：US10848806
申请日：2004-05-19
申请人： Saad Kisra , Henri-Pierre Valero
发明人： Saad Kisra , Henri-Pierre Valero
CPC分类号： G01V11/002 , G01V3/34 , G01V2210/6163
摘要： The present invention is directed to methods and systems for taking measurements relating to subterranean formations. The methods and systems effectively compress data and thus facilitate more efficient data transmission. The methods and systems are capable of automatically varying data compression rates during a measurement operation. The variable data compression capability facilitates reliable collection of measurement data at faster and/or constant logging speeds. The data compression methods and systems may be applied to any measurement operation relating to subterranean formations, including, but not limited to: acoustic wireline logging measurements, acoustic logging-while-drilling measurements, electromagnetic measurements, nuclear magnetic resonance measurements, and resistivity measurements.
摘要翻译： 本发明涉及用于进行与地下地层相关的测量的方法和系统。 方法和系统有效地压缩数据，从而促进更有效的数据传输。 方法和系统能够在测量操作期间自动改变数据压缩率。 可变数据压缩功能有助于以更快和/或恒定的记录速度可靠地收集测量数据。 数据压缩方法和系统可以应用于与地下地层相关的任何测量操作，包括但不限于：声学有线测井测量，钻井前测井，电磁测量，核磁共振测量和电阻率测量。
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22.发明授权Methods and apparatus to process measurements associated with drilling operations 有权处理与钻井作业有关的测量的方法和装置公开(公告)号：US08554483B2
公开(公告)日：2013-10-08
申请号：US12685633
申请日：2010-01-11
申请人： Henri-Pierre Valero , Sandip Bose
发明人： Henri-Pierre Valero , Sandip Bose
摘要： Methods and apparatus to process measurements associated with drilling operations are described. An example method of modifying processing results during a subterranean formation drilling operation includes identifying a plurality of parameters and processing measurements associated with the subterranean formation obtained while drilling and the plurality of parameters to generate first results. Additionally, the example method includes processing measurements associated with the subterranean formation obtained while drilling is temporarily suspended and the plurality of parameters to generate second results and comparing the first and second results. Further, the example method includes, in response to the comparison of the first and second results, modifying the first results based on the second results to improve a quality of the first results.
摘要翻译： 描述了用于处理与钻井操作相关的测量的方法和装置。 在地层钻井操作期间修改处理结果的示例性方法包括识别与钻井时获得的地下岩层相关联的多个参数和处理测量，以及多个参数以产生第一结果。 另外，示例性方法包括处理与临时停止钻井时获得的地下地层相关联的测量，以及多个参数以产生第二结果并比较第一和第二结果。 此外，示例方法包括响应于第一和第二结果的比较，基于第二结果修改第一结果以改善第一结果的质量。
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23.发明授权公开(公告)号：US08339897B2
公开(公告)日：2012-12-25
申请号：US12644862
申请日：2009-12-22
IPC分类号： G01V1/50
CPC分类号： G01V1/50 , G01V1/30 , G01V1/307 , G01V2210/00
摘要： Slowness dispersion characteristics of multiple possibly interfering signals in broadband acoustic waves as received by an array of two or more sensors are extracted without using a physical model. The problem of dispersion extraction is mapped to the problem of reconstructing signals having a sparse representation in an appropriately chosen over-complete dictionary of basis elements. A sparsity penalized signal reconstruction algorithm is described where the sparsity constraints are implemented by imposing a l1 norm type penalty. The candidate modes that are extracted are consolidated by means of a clustering algorithm to extract phase and group slowness estimates at a number of frequencies which are then used to reconstruct the desired dispersion curves. These estimates can be further refined by building time domain propagators when signals are known to be time compact, such as by using the continuous wavelet transform.
摘要翻译： 在不使用物理模型的情况下提取由两个或更多个传感器的阵列接收的宽带声波中的多个可能干扰信号的慢度色散特性。 色散提取的问题被映射到在基本元素的适当选择的过完整字典中重建具有稀疏表示的信号的问题。 描述了稀疏惩罚信号重建算法，其中稀疏约束通过施加l1范数类型惩罚来实现。 提取的候选模式通过聚类算法进行合并，以提取多个频率的相位和组慢度估计，然后用于重建所需的色散曲线。 当已知信号是时间紧凑的，例如通过使用连续小波变换，可以通过构建时域传播器来进一步改进这些估计。
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公开(公告)号：US07603238B2
公开(公告)日：2009-10-13
申请号：US11867663
申请日：2007-10-04
CPC分类号： G01V1/30
摘要： A method for acquiring and analyzing time-series data using singularities is described. This method allows for the analysis of data over a wide spectrum of frequencies. Once the data is acquired in an oil field, singularities of the data are extracted; and the extracted singularities are utilized to interpret the formation properties related to the data.
摘要翻译： 描述了使用奇异点获取和分析时间序列数据的方法。 该方法允许在宽频谱范围内对数据进行分析。 一旦在油田中获取数据，则提取数据的奇点; 并且提取的奇点用于解释与数据相关的形成属性。
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25.发明授权Radial profiling of slowness: methods and apparatus for near-wellbore alteration estimation 有权径向剖面缓慢：近井眼改造估算的方法和装置公开(公告)号：US07558153B2
公开(公告)日：2009-07-07
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.
摘要翻译： 公开了一种便于通过钻孔穿过的地层的声缓慢的径向剖面的方法和装置。 根据本发明的一些方面，对径向慢度分布进行成像，包括改变区域慢度的图像。
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公开(公告)号：US07107153B2
公开(公告)日：2006-09-12
申请号：US10848806
申请日：2004-05-19
申请人： Saad Kisra , Henri-Pierre Valero
发明人： Saad Kisra , Henri-Pierre Valero
CPC分类号： G01V11/002 , G01V3/34 , G01V2210/6163
摘要： The present invention is directed to methods and systems for taking measurements relating to subterranean formations. The methods and systems effectively compress data and thus facilitate more efficient data transmission. The methods and systems are capable of automatically varying data compression rates during a measurement operation. The variable data compression capability facilitates reliable collection of measurement data at faster and/or constant logging speeds. The data compression methods and systems may be applied to any measurement operation relating to subterranean formations, including, but not limited to: acoustic wireline logging measurements, acoustic logging-while-drilling measurements, electromagnetic measurements, nuclear magnetic resonance measurements, and resistivity measurements.
摘要翻译： 本发明涉及用于进行与地下地层相关的测量的方法和系统。 方法和系统有效地压缩数据，从而促进更有效的数据传输。 方法和系统能够在测量操作期间自动改变数据压缩率。 可变数据压缩功能有助于以更快和/或恒定的记录速度可靠地收集测量数据。 数据压缩方法和系统可以应用于与地下地层相关的任何测量操作，包括但不限于：声学有线测井测量，钻井前测井，电磁测量，核磁共振测量和电阻率测量。
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27.发明授权Methods and apparatus for processing acoustic waveforms received in a borehole 有权用于处理在井眼中接收的声波的方法和装置公开(公告)号：US06868341B2
公开(公告)日：2005-03-15
申请号：US10328311
申请日：2002-12-23
申请人： Henri-Pierre Valero
发明人： Henri-Pierre Valero
CPC分类号： G01V1/48 , G01V1/366 , G01V2210/20 , G01V2210/30
摘要： A method and apparatus for determining isolating and/or removing a signal of interest from acoustic data. The method and apparatus may be used to measure formation slowness in a cased borehole, in which case the signal of interest may be a casing arrival signal. The casing arrival signal may be detected, rebuilt and removed from a set of acoustic data. Semblance processing is applied to the acoustic data with the casing signal removed, yielding a coherent formation slowness log. A filter band may be defined and automatically administered to detect and remove the signal of interest such as the casing signal.
摘要翻译： 一种用于确定从声学数据中分离和/或去除感兴趣信号的方法和装置。 该方法和装置可用于测量套管钻孔中的地层慢度，在这种情况下，感兴趣的信号可以是套管到达信号。 可以从一组声学数据中检测，重建和去除套管到达信号。 将外壳信号去除时，对声学数据进行外观处理，产生一个相干的形成缓慢记录。 可以限定滤波器带并且自动地施加以检测和去除感兴趣的信号，例如壳体信号。
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公开(公告)号：US06845325B2
公开(公告)日：2005-01-18
申请号：US10005497
申请日：2001-11-08
申请人： Henri-Pierre Valero , Alain Brie , Takeshi Endo
发明人： Henri-Pierre Valero , Alain Brie , Takeshi Endo
CPC分类号： G01V1/48
摘要： A method of determining the sonic slowness of a formation traversed by a borehole comprising generating tracks from sonic waveform peaks received at a plurality of depths wherein the peaks that are not classified prior to tracking is set forth. A method for generating a slowness versus depth log is generated for waveform arrivals by classifying long tracks, classifying small tracks; classifying tracks that overlap; filling in gaps; and creating a final log is disclosed. In further improvements, non-classified tracks and interpolation are used to fill in gaps.
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公开(公告)号：US06625541B1
公开(公告)日：2003-09-23
申请号：US09591405
申请日：2000-06-12
IPC分类号： G01V100
摘要： Methods for downhole waveform tracking and sonic labeling employ “tracking algorithms” and Bayesian analysis to classify STC waveforms. More particularly, according to the tracking part of the invention, a probability model is built to distinguish true “arrivals” (e.g. compressional, shear, etc.) from “false alarms” (e.g. noise) before the arrivals are classified. The probability model maps the “continuity” of tracks (slowness/time over depth) and is used to determine whether sequences of measurements are sufficiently “continuous” to be classified as tracks. The probability model is used to evaluate the likelihood of the data in various possible classifications (hypotheses). Prior and posterior probabilities are constructed for each track using the tracking algorithm. The posterior probabilities are computed sequentially and recursively, updating the probabilities after each measurement frame at depth k is acquired. The classification part of the invention determines the hypotheses with the maximum “posterior probability” according to Bayes' Theorem.
摘要翻译： 井下波形跟踪和声波标记的方法采用“跟踪算法”和贝叶斯分析来分类STC波形。 更具体地，根据本发明的跟踪部分，构建概率模型以在到达之前分类真实的“到达”（例如压缩，剪切等）与“假警报”（例如噪声）。 概率模型映射轨道的“连续性”（慢度/深度上的时间），并且用于确定测量序列是否足够“连续”以被分类为轨道。 概率模型用于评估数据在各种可能分类（假设）中的可能性。 使用跟踪算法为每个轨道构建先验和后验概率。 顺序和递归地计算后验概率，在深度k获取每个测量帧之后更新概率。 本发明的分类部分根据贝叶斯定理确定具有最大“后验概率”的假设。
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30.发明授权公开(公告)号：US09110192B2
公开(公告)日：2015-08-18
申请号：US12752122
申请日：2010-04-01
CPC分类号： G01V1/50
摘要： Methods and apparatus to identify layer boundaries in subterranean formations are described. An example method of identifying a layer boundary of a subterranean formation includes transmitting an acoustic signal from a transmitter into a borehole of the subterranean formation and receiving the acoustic signal at a receiver coupled to the downhole tool and spaced from the transmitter. Additionally, the example method includes logging an energy value associated with the acoustic signal received by the receiver as the downhole tool is moved in the borehole and identifying a change in the logged energy value associated with an impedance change in the subterranean formation to identify the layer boundary.
摘要翻译： 描述了确定地层中层间边界的方法和装置。 识别地层的层边界的示例性方法包括将声信号从发射机传输到地下井的井眼中，并在耦合到井下工具并与发射器间隔开的接收器处接收声信号。 此外，示例性方法包括：当井下工具在钻孔中移动时，记录与接收器接收的声信号相关联的能量值，并且识别与地下地层中的阻抗变化相关联的记录能量值的变化，以识别层 边界。
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