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    • 1. 发明申请
    • EXTRACTING GEOLOGIC INFORMATION FROM MULTIPLE OFFSET STACKS AND/OR ANGLE STACKS
    • 从多个偏置堆栈和/或角度堆栈中提取地质信息
    • WO2012106201A3
    • 2012-12-06
    • PCT/US2012022903
    • 2012-01-27
    • CHEVRON USA INCPOSAMENTIER HENRY WVU CUNG KHACDISIENA JAMES PDYGERT TODD
    • POSAMENTIER HENRY WVU CUNG KHACDISIENA JAMES PDYGERT TODD
    • G01V1/28G01V1/30G06F19/00
    • G01V1/30G01V2210/63
    • Geologic information may be extracted from multiple offset stacks and/or angle stacks. Offset stacks and/or angle stacks may be received that represent energy that has propagated through a geologic volume of interest from energy sources to energy receivers. Attribute volumes associated with individual source-receiver offsets and/or source-receiver angles may be determined based on corresponding offset stacks and/or angle stacks. For individual offset stacks or angle stacks, corresponding sets of geologic features represented in the attribute volumes may be identified. The sets of geologic features corresponding to the different offset stacks and/or angle stacks may be compared to determine discrepancies and/or similarities between the sets of geologic features corresponding to the different offset stacks and/or angle stacks. Stratigraphic interpretations, stratigraphic predictions, and/or other interpretations and/or predictions may be determined based on causes of the discrepancies and/or similarities.
    • 地质信息可以从多个偏移堆栈和/或角度堆栈中提取。 可以接收表示已经通过从能量源到能量接收器的感兴趣的地质体积传播的能量的偏移堆叠和/或角度堆叠。 可以基于对应的偏移堆栈和/或角度堆栈来确定与各个源 - 接收器偏移和/或源 - 接收器角度相关联的属性体积。 对于单个偏移堆栈或角度堆栈,可以识别在属性卷中表示的对应组的地质特征。 可以比较对应于不同偏移堆叠和/或角度堆叠的各组地质特征以确定对应于不同偏移堆叠和/或角度堆叠的各组地质特征之间的差异和/或相似性。 可以基于差异和/或相似性的原因确定地层解释,地层预测和/或其他解释和/或预测。
    • 5. 发明申请
    • SYSTEM AND METHOD FOR GENERATING MICRO-SEISMIC EVENTS AND CHARACTERIZING PROPERTIES OF A MEDIUM WITH NON-LINEAR ACOUSTIC INTERACTIONS
    • 用于生成微地震事件的系统和方法以及具有非线性声学相互作用的介质的特性
    • WO2012064842A3
    • 2013-06-13
    • PCT/US2011059973
    • 2011-11-09
    • CHEVRON USA INCLOS ALAMOS NAT SECURITY LLCVU CUNG KHACNIHEI KURT TJOHNSON PAUL AGUYER ROBERT ATEN CATE JAMES ALE BAS PIERRE-YVESLARMAT CARENE S
    • VU CUNG KHACNIHEI KURT TJOHNSON PAUL AGUYER ROBERT ATEN CATE JAMES ALE BAS PIERRE-YVESLARMAT CARENE S
    • G01V1/46G01V1/00
    • G01V1/006G01V1/44G01V1/46G01V1/50G01V1/52G01V2210/125G01V2210/127G01V2210/588G10K15/02
    • A method and system for generating a micro-seismic event in a medium from a non-linear interaction to characterize the medium is provided. The method includes generating, by a first acoustic source (SI, 12), a first coded acoustic signal comprising a first plurality of pulses arranged as a time sequence, each pulse comprising a modulated signal at a central frequency; and generating, by a second acoustic source (S2,14), a second coded acoustic signal comprising a second plurality of pulses arranged as a time sequence, wherein each pulse comprises a modulated signal and a central frequency of the modulated signal within each pulse in the second plurality of pulses is a selected fraction d of the central frequency of the modulated signal for the corresponding pulse in the first plurality of pulses. The method further includes receiving, by a receiver (R), a detected signal including a third signal being generated by a non-linear mixing process from the first acoustic signal and the second acoustic signal in the mixing zone; performing, by a processor, data processing on the received signal, or correlating with a coded signal template, or both, to extract the third signal generated by the non-linear mixing process over noise or over signals generated by a linear interaction process, or both, to obtain an emulated micro-seismic event signal occurring at the mixing zone; and characterizing properties of the medium or creating a 3D image of the properties of the medium, or both, based on the emulated micro-seismic event signal.
    • 提供了一种用于从非线性相互作用产生介质中的微地震事件以表征介质的方法和系统。 该方法包括通过第一声源(SI,12)产生包括排列成时间序列的第一多个脉冲的第一编码声信号,每个脉冲包括中心频率的调制信号; 以及通过第二声源(S2,14)产生包括排列为时间序列的第二多个脉冲的第二编码声信号,其中每个脉冲包括调制信号和在每个脉冲内的调制信号的中心频率 所述第二多个脉冲是所述第一多个脉冲中相应脉冲的调制信号的中心频率的选定分数d。 该方法还包括由接收器(R)接收包括由混合区中的第一声信号和第二声信号通过非线性混合处理产生的第三信号的检测信号; 通过处理器对接收到的信号执行数据处理或与编码信号模板或两者相关,以通过由线性相互作用过程产生的噪声或过度信号来提取由非线性混合处理产生的第三信号,或 以获得在混合区发生的模拟微地震事件信号; 并且基于仿真的微地震事件信号来表征介质的性质或者创建介质的属性的3D图像,或两者。
    • 8. 发明申请
    • DEVICE AND METHOD FOR GENERATING A COLLIMATED BEAM OF ACOUSTIC ENERGY IN A BOREHOLE
    • 在井眼中产生聚合能量的束缚的装置和方法
    • WO2011152957A3
    • 2012-02-02
    • PCT/US2011035608
    • 2011-05-06
    • CHEVRON USA INCLOS ALAMOS NAT SECURITY LLCVU CUNG KHACSINHA DIPEN NPANTEA CRISTIANNIHEI KURT TSCHMITT DENIS PSKELT CHRISTOPHER
    • VU CUNG KHACSINHA DIPEN NPANTEA CRISTIANNIHEI KURT TSCHMITT DENIS PSKELT CHRISTOPHER
    • G01V1/04G01V1/40G01V1/46
    • G01V1/46
    • In some aspects of the invention, a method of generating a beam of acoustic energy in a borehole is disclosed. The method includes generating a first broad-band acoustic pulse at a first broad-band frequency range having a first central frequency and a first bandwidth spread; generating a second broad-band acoustic pulse at a second broad-band frequency range different than the first frequency range having a second central frequency and a second bandwidth spread, wherein the first acoustic pulse and second acoustic pulse are generated by at least one transducer arranged on a tool located within the borehole; and transmitting the first and the second broad-band acoustic pulses into an acoustically non-linear medium, wherein the composition of the non-linear medium produces a collimated pulse by a non-linear mixing of the first and second acoustic pulses, wherein the collimated pulse has a frequency equal to the difference in frequencies between the first central frequency and the second central frequency and a bandwidth spread equal to the sum of the first bandwidth spread and the second bandwidth spread.
    • 在本发明的一些方面,公开了一种在钻孔中产生声能束的方法。 该方法包括在具有第一中心频率和第一带宽扩展的第一宽带频率范围内产生第一宽带声波脉冲; 在与具有第二中心频率和第二带宽扩展的第一频率范围不同的第二宽带频率范围处产生第二宽带声波脉冲,其中第一声脉冲和第二声脉冲由至少一个换能器布置 位于钻孔内的工具上; 以及将所述第一和第二宽带声脉冲发射到声学非线性介质中,其中所述非线性介质的组成通过所述第一和第二声学脉冲的非线性混合产生准直脉冲,其中所述准直 脉冲的频率等于第一中心频率和第二中心频率之间的频率差,以及等于第一带宽扩展和第二带宽扩展之和的带宽扩展。