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公开(公告)号：US08553493B2
公开(公告)日：2013-10-08
申请号：US11964736
申请日：2007-12-27
IPC分类号： G01V1/40
CPC分类号： G01V1/50
摘要： A method for estimating formation permeability from measured sonic wave Stoneley attributes and particularly the Stoneley attributes of slowness (DTst) and attenuation (ATTst), taking into consideration the existence of a heavy walled drill collar at the end of the drill string and the relative lack of borehole mud cake during a drilling operation. In the subject LWD application a real-time qualitative indication for fracture and permeable zones is estimated from Stoneley measurements. This information is useful to a driller to make important timely decisions about drilling and completion programs.
摘要翻译： 考虑到钻柱末端存在厚壁钻铤，相对缺乏的方法，用于估计测量声波斯通利属性，特别是斯通利度量（DTst）和衰减（ATTst）的地层渗透率 在钻井作业期间钻孔泥饼。 在主题LWD应用中，从Stoneley测量估计了断裂和渗透区域的实时定性指示。 这些信息对于钻井者对钻井和完井计划作出重要的及时决定是有用的。
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公开(公告)号：US08547789B2
公开(公告)日：2013-10-01
申请号：US11964731
申请日：2007-12-27
IPC分类号： G01V1/48
摘要： A method for determining on a real time logging while drilling (LWD) basis gas within earth formations traversed by a borehole. Continuous LWD acoustic measurements are recorded and processed including coherent energy and attenuation attributes to detect downhole gas zones and kick during drilling operations.
摘要翻译： 一种用于在通过钻孔穿过的地层内的钻井（LWD）基础气体的实时测井时确定的方法。 记录和处理连续LWD声学测量，包括相干能量和衰减属性，以检测井下气体区域并在钻井操作期间踢。
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公开(公告)号：US20090168598A1
公开(公告)日：2009-07-02
申请号：US11964736
申请日：2007-12-27
IPC分类号： G01V1/40
CPC分类号： G01V1/50
摘要： A method for estimating formation permeability from measured sonic wave Stoneley attributes and particularly the Stoneley attributes of slowness (DTst) and attenuation (ATTst), taking into consideration the existence of a heavy walled drill collar at the end of the drill string and the relative lack of borehole mud cake during a drilling operation. In the subject LWD application a real-time qualitative indication for fracture and permeable zones is estimated from Stoneley measurements. This information is useful to a driller to make important timely decisions about drilling and completion programs.
摘要翻译： 考虑到钻柱末端存在厚壁钻铤，相对缺乏的方法，用于估计测量声波斯通利属性，特别是斯通利度量（DTst）和衰减（ATTst）的地层渗透率 在钻井作业期间钻孔泥饼。 在主题LWD应用中，从Stoneley测量估计了断裂和渗透区域的实时定性指示。 这些信息对于钻井者对钻井和完井计划作出重要的及时决定是有用的。
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公开(公告)号：US08681582B2
公开(公告)日：2014-03-25
申请号：US11964734
申请日：2007-12-27
申请人： Peter T. Wu , Alain Dumont , Pierre Campanac
发明人： Peter T. Wu , Alain Dumont , Pierre Campanac
IPC分类号： G01V1/40
CPC分类号： G01V1/50
摘要： A method for estimating formation porosity and lithology on a real time basis during a logging while drilling operation using measured values of formation attenuation attributes for compression and/or shear.
摘要翻译： 一种用于在使用测量的压缩和/或剪切的地层衰减特性的测量值的同时在测井期间实时地估计地层孔隙度和岩性的方法。
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公开(公告)号：US07639563B2
公开(公告)日：2009-12-29
申请号：US11964735
申请日：2007-12-27
申请人： Peter T. Wu , Alain Dumont , Pierre Campanac
发明人： Peter T. Wu , Alain Dumont , Pierre Campanac
IPC分类号： G01V1/00
CPC分类号： G01V1/50 , E21B47/0005
摘要： A method for determining on a real time logging while drilling (LWD) basis the top of cement location between casing transition zones in a borehole using at least one sonic attributes of coherent energy, attenuation and slowness as a function of at least one of depth and time.
摘要翻译： 一种用于基于在井眼中的壳体过渡区域之间的水泥位置的顶部使用相干能量，衰减和慢度的至少一个声音属性作为深度和深度之一的函数来确定钻井时实时测井的方法（LWD） 时间。
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公开(公告)号：US08238194B2
公开(公告)日：2012-08-07
申请号：US11566600
申请日：2006-12-04
IPC分类号： G01V1/00
CPC分类号： G01V11/002 , G01V1/48 , G01V2200/16 , G01V2210/72
摘要： Methods for compression of sonic log data include STC processing, sorting peak components in the sonic data; filtering the sorted peak components to remove high-frequency portions in the peak components; and decimating the filtered peak components according to a selected ratio to produce compressed data. One method for telemetry transmission of downhole sonic log data includes sorting peak components in the sonic log data; compressing the sorted peak components to produce compressed data; packing the compressed data to produce data packets for telemetry transmission; and sending the data packets using telemetry.
摘要翻译： 声波测井数据的压缩方法包括STC处理，在声波数据中排列峰分量; 过滤排序的峰值分量以去除峰值分量中的高频部分; 并根据所选择的比例抽取滤波的峰值分量以产生压缩数据。 井下声波测井数据遥测传输的一种方法包括：在声波测井数据中排列峰值分量; 压缩排序的峰值分量以产生压缩数据; 打包压缩数据，产生用于遥测传输的数据包; 并使用遥测发送数据包。
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公开(公告)号：US07668043B2
公开(公告)日：2010-02-23
申请号：US10904035
申请日：2004-10-20
申请人： Peter T. Wu
发明人： Peter T. Wu
IPC分类号： G01V1/40
CPC分类号： G01V1/48
摘要： Techniques for processing sonic waveform data include processing the data based on an initial set of formation-borehole parameters, to produce initial coherence peak attributes, wherein the processing is performed in a borehole; sending the initial coherence peak attributes uphole via telemetry; and correcting the initial coherence peak attributes, based on a second set of formation-borehole parameters, to produce corrected coherence peak attributes.
摘要翻译： 用于处理声波波形数据的技术包括基于地层 - 钻孔参数的初始集合处理数据，以产生初始相干峰值属性，其中在钻孔中执行处理; 通过遥测发送初始相干峰属性; 并且基于第二组地层钻孔参数来校正初始相干峰值属性，以产生校正的相干峰值属性。
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公开(公告)号：US06957572B1
公开(公告)日：2005-10-25
申请号：US10710128
申请日：2004-06-21
申请人： Peter T. Wu
发明人： Peter T. Wu
CPC分类号： G01V1/50
摘要： A method for determining mud slowness of a mud in a borehole includes determining slowness as a function of frequency for at least one fluid mode from a set of measurements acquired with a sonic tool in the borehole; and determining the mud slowness from the slowness as a function of frequency for the at least one fluid mode. A downhole sonic tool includes a transmitter capable of generating signals covering a frequency range, a high end of which is more than 30 KHz; and a receiver array comprising a plurality of receivers, which are responsive to the frequency range of the transmitter, wherein the transmitter and the receiver array are spaced apart on a tool body at a selected TR spacing.
摘要翻译： 用于确定钻孔中泥浆的泥浆慢度的方法包括：从用钻孔中的声波工具获取的一组测量来确定作为至少一种流体模式的频率的函数的慢度; 以及根据所述至少一种流体模式的频率的函数从所述慢度确定泥浆缓慢。 井下声波工具包括能够产生覆盖频率范围的信号的发射机，其高端大于30KHz; 以及接收器阵列，其包括响应于所述发射器的频率范围的多个接收器，其中所述发射器和接收器阵列在所选择的TR间隔处在工具主体上间隔开。
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9.发明授权Intelligent diagnosis of environmental influence on well logs with model-based inversion 有权通过基于模型的反演智能诊断测井对环境的影响公开(公告)号：US06832159B2
公开(公告)日：2004-12-14
申请号：US10249612
申请日：2003-04-23
申请人： Jan W. Smits , Peter T. Wu , Qiming Li , Cheng Bing Liu
发明人： Jan W. Smits , Peter T. Wu , Qiming Li , Cheng Bing Liu
IPC分类号： G01V1100
摘要： A method for identifying environmental effects in well log data includes selecting a plurality of models, each of the plurality of models including at least one parameter to be optimized; fitting the models to the well log data by optimizing the at least one parameter, the fitting producing a plurality of optimized models; determining an indicator of goodness of fit for each of the plurality of optimized models; and selecting a model representing a best fit of the well log data based on the indicator.
摘要翻译： 用于识别测井数据中的环境影响的方法包括选择多个模型，所述多个模型中的每个模型包括要优化的至少一个参数; 通过优化所述至少一个参数将所述模型拟合到所述测井数据，所述拟合产生多个优化模型; 确定所述多个优化模型中的每一个的适合度的指标; 并根据该指标选择表示井测井数据的最佳拟合的模型。
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10.发明授权公开(公告)号：US09606257B2
公开(公告)日：2017-03-28
申请号：US13217983
申请日：2011-08-25
申请人： Peter T. Wu , Dong Weixin , Thomas D. Barber , Dean Homan
发明人： Peter T. Wu , Dong Weixin , Thomas D. Barber , Dean Homan
摘要： A method for determining existence of a fracture in a formation surrounding a wellbore drilled through subsurface rock formations includes calculating vertical resistivity, horizontal resistivity, apparent formation dip, apparent formation azimuth and axial resistivity for a plurality of longitudinal instrument spacings using measurements from a triaxial induction well logging instrument disposed in the formation. A spread in the axial resistivity values is determined and the axial resistivity spread threshold therefrom. Fracture indicator values and fracture orientation values are calculated from transverse components of the triaxial induction measurements. Presence of a fracture is indicated when at least one of the fracture indicator value exceeds a selected threshold, the axial resistivity spread exceeds the spread threshold and when the apparent formation dip exceeds a selected threshold.
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