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    ENHANCING LOW FREQUENCY CONTENT IN MARINE SIMULTANEOUS VIBROSEIS AQUISITION
    1.
    发明申请
    ENHANCING LOW FREQUENCY CONTENT IN MARINE SIMULTANEOUS VIBROSEIS AQUISITION 审中-公开
    增强海洋同步震动检测中的低频内容

    公开(公告)号：WO2012170608A3

    公开(公告)日：2013-04-25

    申请号：PCT/US2012041219

    申请日：2012-06-07

    Applicant: GECO TECHNOLOGY BV ,  WESTERNGECO LLC ,  SCHLUMBERGER CA LTD ,  SCHLUMBERGER TECHNOLOGY BV ,  BAGAINI CLAUDIO

    Inventor： BAGAINI CLAUDIO

    IPC: G01V1/38 ,  G01V1/02

    CPC classification number: G01V1/3808 ,  G01V1/3861

    Abstract: A technique is designed for conducting a seismic survey. The technique utilizes a plurality of vibrator arrays employed to conduct a seismic survey utilizing low frequency and high frequency vibrators in each vibrator array. The plurality of vibrator arrays continuously sweeps low frequency signals via low frequency vibrators. While sweeping low frequency signals, high-frequency vibrators emit high-frequency signals in an alternating pattern between vibrator arrays to enhance the seismic survey.

    Abstract translation: 一种技术用于进行地震勘测。 该技术利用多个振动器阵列，用于在每个振子阵列中进行使用低频和高频振动器的地震勘测。 多个振子阵列通过低频振子连续扫描低频信号。 在扫频低频信号时，高频振子以振动器阵列之间的交替模式发射高频信号，以增强地震勘测。

    IMAGING BY EXTRAPOLATION OF VECTOR-ACOUSTIC DATA
    2.
    发明申请
    IMAGING BY EXTRAPOLATION OF VECTOR-ACOUSTIC DATA 审中-公开
    通过扩展矢量声学数据成像

    公开(公告)号：WO2012160431A3

    公开(公告)日：2013-02-21

    申请号：PCT/IB2012000972

    申请日：2012-05-18

    Applicant: GECO TECHNOLOGY BV ,  SCHLUMBERGER CA LTD ,  SCHLUMBERGER SEACO INC ,  VASCONCELOS IVAN

    Inventor： VASCONCELOS IVAN

    IPC: G01V1/28 ,  A61B8/00 ,  G01N29/26 ,  G01V1/24

    CPC classification number: G01V1/282 ,  A61B8/00 ,  G01N29/26 ,  G01V1/003 ,  G01V1/24 ,  G01V1/28 ,  G01V1/3808 ,  G01V3/083 ,  G01V2003/086 ,  G01V2210/614 ,  G01V2210/67 ,  G01V2210/675 ,  G01V2210/679

    Abstract: Methods for wavefield extrapolation using measurements of a wavefield quantity and a component of the gradient of the wavefield quantity are disclosed. The methods use "exact" representations of scattering reciprocity. The methods can yield "exact", nonlinear, "true-amplitude" receiver wavefields that are beyond the receiver measurement boundary. Methods of evaluating/validating the extrapolated data are also disclosed. Some methods may also evaluate the accuracy of models for the areas where data are extrapolated or measured. These methods can be used in any industries involving imaging, such as geophysical/seismic exploration, bio-medical imaging, non-destructive remote sensing, acoustic space architecture, design and engineering.

    Abstract translation: 公开了使用波场量的测量和波场量梯度分量的波场外推方法。 该方法使用散射互易的“精确”表示。 这些方法可以产生超出接收机测量边界的“精确”非线性“真实振幅”接收机波场。 还公开了评估/验证外推数据的方法。 一些方法还可以评估数据外推或测量的区域的模型的准确性。 这些方法可用于涉及成像的任何行业，如地球物理/地震勘探，生物医学成像，非破坏性遥感，声学空间结构，设计和工程。

    REMOVING NOISE FROM A SEISMIC MEASUREMENT
    4.
    发明申请
    REMOVING NOISE FROM A SEISMIC MEASUREMENT 审中-公开
    从地震测量中消除噪音

    公开(公告)号：WO2012087632A3

    公开(公告)日：2012-10-26

    申请号：PCT/US2011064380

    申请日：2011-12-12

    Applicant: WESTERNGECO LLC ,  GECO TECHNOLOGY BV ,  SCHLUMBERGER CA LTD ,  SCHLUMBERGER TECHNOLOGY BV ,  OZDEMIR KEMAL ,  KJELLESVIG BENT ANDREAS

    Inventor： OZDEMIR KEMAL ,  KJELLESVIG BENT ANDREAS

    IPC: G01V1/28 ,  G01V1/36 ,  G01V1/38

    CPC classification number: G01V1/364 ,  G01V2210/21 ,  G01V2210/32

    Abstract: A technique includes decomposing a signal that is derived from a seismic acquisition into a plurality of signals such that each signal is associated with a different frequency band. For each signal of the plurality of signals, the technique includes performing the following: decomposing the signal into subbands in successive stages, where the subbands are associated with at least different frequency ranges of the signal; selectively applying adaptive noise attenuation in between the successive stages such that the stages decompose noise-attenuated subbands; and reconstructing the signal from the subbands resulting from the decomposition. The technique includes combining the reconstructed signals.

    Abstract translation: 一种技术包括将从地震采集导出的信号分解为多个信号，使得每个信号与不同的频带相关联。 对于多个信号中的每个信号，该技术包括执行以下步骤：在连续的阶段将信号分解为子带，其中子带与信号的至少不同的频率范围相关联; 在连续级之间选择性地应用自适应噪声衰减，使得这些级分解噪声衰减子带; 并且从分解得到的子带重建信号。 该技术包括组合重建的信号。

    DETERMINING A QUANTITY OF A GIVEN MATERIAL IN A SUBTERRANEAN STRUCTURE
    8.
    发明申请
    DETERMINING A QUANTITY OF A GIVEN MATERIAL IN A SUBTERRANEAN STRUCTURE 审中-公开
    确定地下结构中物质的数量

    公开(公告)号：WO2011150387A3

    公开(公告)日：2012-04-19

    申请号：PCT/US2011038431

    申请日：2011-05-27

    Applicant: GECO TECHNOLOGY BV ,  SCHLUMBERGER CA LTD ,  DAI JIANCHUN

    Inventor： DAI JIANCHUN

    IPC: G01V1/38 ,  G01V1/28 ,  G06F19/00

    CPC classification number: G01V1/282 ,  G01V1/3808

    Abstract: A profile is produced based on measured survey data, where the profile contains indications corresponding to refraction events at different depths in a subterranean structure. Based on the profile and a critical angle model that correlates different concentrations of a given material to respective critical angles, a quantity of the given material in a subterranean structure at a particular depth is determined.

    Abstract translation: 基于测量的测量数据生成轮廓，其中轮廓包含对应于地下结构中不同深度处的折射事件的指示。 基于轮廓和临界角模型，其将给定材料的不同浓度与相应的临界角度相关联，确定在特定深度处的地下结构中的给定材料的量。

    OBTAINING A RESPONSE BASED ON DIFFERENCING OF OUTPUTS OF SENSORS
    9.
    发明申请
    OBTAINING A RESPONSE BASED ON DIFFERENCING OF OUTPUTS OF SENSORS 审中-公开
    基于传感器输出的差异获得响应

    公开(公告)号：WO2012018450A3

    公开(公告)日：2012-04-12

    申请号：PCT/US2011041635

    申请日：2011-06-23

    Applicant: GECO TECHNOLOGY BV ,  SCHLUMBERGER CA LTD ,  WESTERNGECO LLC ,  MUYZERT EVERHARD ,  EDME PASCAL ,  KRAGH JULIAN EDWARD

    Inventor： MUYZERT EVERHARD ,  EDME PASCAL ,  KRAGH JULIAN EDWARD

    IPC: G01V1/28 ,  G01V1/16

    CPC classification number: G01V1/20 ,  G01V1/364 ,  G01V2210/3246

    Abstract: A sensor assembly has first sensors spaced apart along a first direction, and second sensors oriented in a second direction generally orthogonal to the first direction. Differencing of outputs of the first sensors is performed, and differencing of outputs of the second sensors is performed. A signal output is produced by combining the differenced outputs of the first sensors and the differenced outputs of the second sensors, where the signal output represents a seismic response of a subterranean structure.

    Abstract translation: 传感器组件具有沿着第一方向间隔开的第一传感器以及沿大致正交于第一方向的第二方向取向的第二传感器。 执行第一传感器的输出的差分，并且执行第二传感器的输出的差分。 通过组合第一传感器的差分输出和第二传感器的差分输出产生信号输出，其中信号输出表示地下结构的地震响应。

    METHOD AND APPARATUS TO BUILD A THREE-DIMENSIONAL MECHANICAL EARTH MODEL
    10.
    发明申请
    METHOD AND APPARATUS TO BUILD A THREE-DIMENSIONAL MECHANICAL EARTH MODEL 审中-公开
    建立三维机械地球模型的方法与装置

    公开(公告)号：WO2011123774A3

    公开(公告)日：2012-03-08

    申请号：PCT/US2011030932

    申请日：2011-04-01

    Applicant: GECO TECHNOLOGY BV ,  SCHLUMBERGER CA LTD ,  HERWANGER JORG V ,  SENGUPTA MADHUMITA

    Inventor： HERWANGER JORG V ,  SENGUPTA MADHUMITA

    IPC: G01V1/28 ,  G01V1/30 ,  G06F19/00 ,  G06T17/05

    CPC classification number: G01V1/306 ,  G01V2210/624 ,  G01V2210/6242 ,  G01V2210/66

    Abstract: A technique includes inverting seismic data acquired for a subsurface region to determine dynamic elastic properties and converting the dynamic elastic properties to static elastic properties and rock strength properties. The technique includes generating a three-dimensional mechanical earth model for the subsurface region, where the model includes the dynamic elastic properties, the static elastic properties, the rock strength properties and a subsurface stress field. The technique can include a calibration step that matches seismic data observations to predictions from the geomechanical model.

    Abstract translation: 一种技术包括反演为地下区域获取的地震数据，以确定动态弹性性能，并将动态弹性性能转化为静态弹性性能和岩石强度性能。 该技术包括为地下区域生成三维机械地球模型，其中模型包括动态弹性性质，静态弹性特性，岩石强度性质和地下应力场。 该技术可以包括将地震数据观测与来自地质力学模型的预测相匹配的校准步骤。

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