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    Method to Characterize Heterogeneous Anisotropic Media
    31.
    发明申请
    Method to Characterize Heterogeneous Anisotropic Media 有权
    表征异构各向异性介质的方法

    公开(公告)号：US20140365420A1

    公开(公告)日：2014-12-11

    申请号：US14373034

    申请日：2013-01-22

    Applicant: Schlumberger Technology Corporation

    Inventor： Jeroen Jocker ,  Erik Wielemaker ,  Romain Charles Andre Prioul ,  Henri-Pierre Valero

    IPC: G06N5/04 ,  G01V99/00 ,  G06N7/00

    CPC classification number: G06N5/04 ,  G01V1/48 ,  G01V11/00 ,  G01V99/00 ,  G06N7/005

    Abstract: A computer-implemented method for determining elastic properties for a heterogeneous anisotropic geological formation is described herein. The method includes grouping sonic velocity data from a borehole section (or borehole sections) into a number of clusters (e.g., one or more clusters). The sonic velocity data is grouped into clusters using petrophysical log data from the borehole section. The method also includes inverting the sonic velocity data for the clusters to determine elastic properties for each cluster. In some cases, the elastic properties for the clusters are combined to determine a relationship between the elastic properties and formation heterogeneity.

    Abstract translation: 本文描述了用于确定各向异性地质构造的弹性特性的计算机实现方法。 该方法包括将来自井眼部分（或井眼部分）的声速数据分组成多个簇（例如，一个或多个簇）。 使用来自钻孔部分的岩石物理数据将声速数据分组成簇。 该方法还包括反转簇的声速数据，以确定每个簇的弹性特性。 在某些情况下，组合弹性性质以确定弹性性质与形成异质性之间的关系。

    Automatic Processing of Ultrasonic Data
    32.
    发明申请
    Automatic Processing of Ultrasonic Data 有权
    超声波数据自动处理

    公开(公告)号：US20140204700A1

    公开(公告)日：2014-07-24

    申请号：US13943791

    申请日：2013-07-17

    Applicant: Schlumberger Technology Corporation

    Inventor： Henri-Pierre Valero ,  Adam Pedrycz ,  Takeo Fujihara

    IPC: G01S15/00

    CPC classification number: G01S15/006 ,  G01N29/07 ,  G01N29/4472 ,  G01N29/46 ,  G01N2291/011 ,  G01N2291/044 ,  G01V1/48 ,  G06F17/14

    Abstract: An example method for automatically characterizing an echo contained in an ultrasonic signal generated with an ultrasonic transducer can include receiving data corresponding to the ultrasonic signal, calculating an energy ratio of the ultrasonic signal and localizing the echo using the energy ratio. The method can include windowing a portion of the ultrasonic signal around the localized echo and calculating a Fast Fourier Transform (FFT) and a Hilbert envelop of the windowed portion. The method can include estimating M echo parameters from the FFT and the Hilbert envelope of the windowed portion, where each of the M parameter vectors includes a plurality of echo parameters, calculating M parametric echo models based on each of the M echo parameter vectors and iteratively minimizing a difference between the windowed portion of the ultrasonic signal and a sum of the M parametric echo models.

    Abstract translation: 用于自动表征包含在用超声波换能器产生的超声信号中的回波的示例性方法可以包括接收与超声波信号相对应的数据，计算超声信号的能量比并使用能量比定位回波。 该方法可以包括在局部回波周围加窗超声波信号的一部分，并计算窗口部分的快速傅立叶变换（FFT）和希尔伯特包络。 该方法可以包括从FFT和希尔伯特包络估计M回波参数，其中M个参数矢量中的每一个包括多个回波参数，基于每个M个回波参数向量计算M个参数回波模型， 最小化超声波信号的窗口部分与M个参数回波模型的和之间的差异。

    Methods and Apparatus to Process Measurements Associated with Drilling Operations
    33.
    发明申请
    Methods and Apparatus to Process Measurements Associated with Drilling Operations 审中-公开
    用于处理与钻井作业相关的测量的方法和装置

    公开(公告)号：US20130345984A1

    公开(公告)日：2013-12-26

    申请号：US13975364

    申请日：2013-08-25

    Applicant: Schlumberger Technology Corporation

    Inventor： Henri-Pierre Valero ,  Sandip Bose

    IPC: E21B47/12

    CPC classification number: E21B47/12 ,  E21B47/00 ,  G01V1/46 ,  G01V11/00

    Abstract: 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.

    Abstract translation: 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。

    Method and system for estimating formation slowness
    38.
    发明授权
    Method and system for estimating formation slowness 有权

    公开(公告)号：US10379247B2

    公开(公告)日：2019-08-13

    申请号：US15333246

    申请日：2016-10-25

    Applicant: Schlumberger Technology Corporation

    Inventor： Mitsuko Kitazawa ,  Henri-Pierre Valero ,  Takeshi Endo ,  John Adam Donald ,  Erik Wielemaker

    IPC: G01V1/50 ,  G01V1/28 ,  G01V1/30

    Abstract: A method for estimating formation slowness is provided. The method comprises forward modeling to compute formation slownesses based on a first method for orthorhombic media using stress magnitudes and third-order elastic constants as inputs, and forward modeling to determine formation slownesses analytically based on a second method using stress magnitudes, stress azimuth and third-order elastic constants as inputs. The first method may be based on Tsvankin method and the second method may be based on Christoffel method. The forward modeling may further use well configuration and reference moduli as inputs, and the results from the forward modeling may include formation slownesses, and at least one of vertical slownesses, anisotropic parameters, anellipticity indicators and fast shear azimuth. The method may further comprise assessing quality of the forward modeling based on results output from the forward modeling.

    Systems And Methods For Estimating Time Of Flight For An Acoustic Wave
    39.
    发明申请
    Systems And Methods For Estimating Time Of Flight For An Acoustic Wave 审中-公开

    公开(公告)号：US20170176621A1

    公开(公告)日：2017-06-22

    申请号：US15325785

    申请日：2015-07-16

    Applicant: Schlumberger Technology Corporation

    Inventor： Henri-Pierre Valero ,  Vivien Seguy

    IPC: G01V1/50

    CPC classification number: G01V1/50 ,  E21B47/14

    Abstract: An example method for estimating a time of flight (“TOF”) for an acoustic wave generated by an acoustic source for each of a plurality of acoustic receivers in an array can include recording data corresponding to the acoustic wave received at each of the acoustic receivers, estimating a respective TOF for the acoustic wave for each of the acoustic receivers, and discarding one or more of the respective estimated TOFs. Each of the discarded TOFs can be a statistical outlier. The method can also include calculating a plurality of time delays for the acoustic wave using a plurality of non-discarded estimated TOFs, and updating the respective estimated TOFs for the acoustic wave for each of the acoustic receivers using the calculated time delays. Each of the time delays can be a difference between respective estimated TOFs for the acoustic wave for at least two of the acoustic receivers.

    SYSTEMS, METHODS AND APPARATUS FOR DOWNHOLE MONITORING
    40.
    发明申请
    SYSTEMS, METHODS AND APPARATUS FOR DOWNHOLE MONITORING 审中-公开
    用于井下监测的系统，方法和装置

    公开(公告)号：US20170022806A1

    公开(公告)日：2017-01-26

    申请号：US15300831

    申请日：2015-03-31

    Applicant: Schlumberger Technology Corporation

    Inventor： Abderrhamane Ounadjela ,  Bhavik Shah ,  Marthe Souquiere ,  Henri-Pierre Valero ,  Sandip Bose ,  Philippe F. Salamitou

    IPC: E21B49/00 ,  G01V1/48 ,  G01V1/46 ,  E21B47/12 ,  E21B43/26

    CPC classification number: E21B49/006 ,  E21B43/26 ,  E21B47/12 ,  G01V1/288 ,  G01V1/46 ,  G01V1/48 ,  G01V2210/1234 ,  G01V2210/646

    Abstract: A downhole monitoring system and method that includes a sensor system with a sensor array with a number of sensors and a hub. Data measured by the sensors is processed by the hub and wirelessly communicated to a smart node. The sensor system may be mounted in the annulus formed between a borehole wall and an exterior surface of a well casing. The sensors may be configured to monitor the formation for microseismic events generated during hydraulic fracturing. The fracture growth and propagation may be monitored using the data obtained by the sensors. The data may facilitate real time control of the hydraulic fracturing operation.

    Abstract translation: 一种井下监测系统和方法，其包括具有传感器阵列的传感器系统，所述传感器阵列具有多个传感器和集线器。 由传感器测量的数据由集线器处理，并无线传送到智能节点。 传感器系统可以安装在形成在钻孔壁和井套管的外表面之间的环形空间中。 传感器可以被配置为监测在水力压裂期间产生的微震事件的形成。 可以使用由传感器获得的数据来监测骨折生长和传播。 该数据可以促进水力压裂作业的实时控制。

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