Method and apparatus for detecting acoustic activity in a subsurface formation
    1.
    发明授权
    Method and apparatus for detecting acoustic activity in a subsurface formation 有权
    用于检测地下地层声学活动的方法和装置

    公开(公告)号:US08069913B2

    公开(公告)日:2011-12-06

    申请号:US12411395

    申请日:2009-03-26

    IPC分类号: E21B47/00

    CPC分类号: G01V1/52 G01V1/46

    摘要: A method of monitoring acoustic activity in a formation from a wellbore includes positioning a flow manipulation device into the wellbore, the flow manipulation device defining a flow path through which fluid may flow. Fluid is then pumped into the wellbore and through the manipulation device. A sensor disposed near the manipulation device is then coupled to the formation, the formation is fractured with fluid, and acoustic events in the formation are detected with the sensor.

    摘要翻译: 从井眼监测地层中的声学活动的方法包括将流动操纵装置定位到井眼中,流动操纵装置限定流体可流过的流动路径。 然后将流体泵入井眼并通过操纵装置。 然后将设置在操纵装置附近的传感器耦合到地层,地层用流体断裂,并且用传感器检测地层中的声学事件。

    Near-simultaneous acquisition for borehole seismic
    3.
    发明授权
    Near-simultaneous acquisition for borehole seismic 有权
    近井同时采集井眼地震

    公开(公告)号:US09164185B2

    公开(公告)日:2015-10-20

    申请号:US13180442

    申请日:2011-07-11

    IPC分类号: G01V1/38 G01V1/00 G01V1/42

    摘要: A technique facilitates performance of seismic profiling, such as three-dimensional vertical seismic profiling. A downhole acquisition system is provided with acoustic receivers designed to receive acoustic source signals. The firing of acoustic source signals is synchronized with the downhole acquisition system. Additionally, the firing of two or more acoustic source signals is controlled to provide simultaneous or nearly simultaneous timing of one acoustic source signal with respect to another acoustic source signal. A processing system is used to acquire and process a data stream of the initial shot and a data stream of the additional shot occurring simultaneously or nearly simultaneously.

    摘要翻译: 一种技术有助于地震剖面的性能,如三维垂直地震剖面。 井下采集系统设置有用于接收声源信号的声接收器。 声源信号的触发与井下采集系统同步。 此外,控制两个或更多个声源信号的触发以提供相对于另一声源信号的一个声源信号的同时或接近同时的定时。 处理系统用于获取和处理初始镜头的数据流和同时或几乎同时发生的附加镜头的数据流。

    Marine vibrator with improved seal
    4.
    发明授权
    Marine vibrator with improved seal 有权
    船用振动器具有改进的密封

    公开(公告)号:US08804462B2

    公开(公告)日:2014-08-12

    申请号:US12966685

    申请日:2010-12-13

    IPC分类号: G01V1/135 G01V1/38

    CPC分类号: G01V1/135 G01V1/38

    摘要: A marine vibrator with improved seal is described. The marine vibrator includes a housing and piston within the housing for generating vibratory signals. The improved seal is comprised of a two-stage seal having a first seal disposed adjacent the water interface and a second seal disposed away from the water interface, thus improving the reliability of the marine vibrator.

    摘要翻译: 描述了具有改进的密封的海洋振动器。 海洋振动器包括在壳体内的壳体和活塞,用于产生振动信号。 改进的密封件包括两级密封件,其具有邻近水界面布置的第一密封件和远离水界面布置的第二密封件,从而提高了海洋振动器的可靠性。

    Seismic vibrator having airwave suppression
    6.
    发明授权
    Seismic vibrator having airwave suppression 失效
    具有空气波抑制的地震振动器

    公开(公告)号:US08689930B2

    公开(公告)日:2014-04-08

    申请号:US13434631

    申请日:2012-03-29

    CPC分类号: G01V1/047 G01V1/135

    摘要: A seismic vibrator includes a baseplate having a surface configured to couple to a ground surface. A driver is coupled to the baseplate and is configured to move the baseplate in a vibratory manner. A decoupling system is coupled to a part of the baseplate other than the ground-contacting surface. The decoupling system includes a first layer having a Young's modulus greater than that of a second layer coupled to the first layer. The second layer is coupled to the baseplate. The Young's moduli, thicknesses and masses of the first and second layer are selected to provide the decoupling system with a resonant frequency of at most, a spatial aliasing frequency of seismic sensors deployed on the ground surface or a lowest seismic frequency of interest.

    摘要翻译: 地震振动器包括具有配置成耦合到地面的表面的基板。 驱动器联接到基板并且被配置成以振动的方式移动底板。 脱耦系统耦合到底板的除地面接触表面之外的一部分。 去耦系统包括具有比耦合到第一层的第二层的杨氏模量大的杨氏模量的第一层。 第二层耦合到基板。 选择第一层和第二层的杨氏模量,厚度和质量以使解耦系统具有至多的共振频率,部署在地面上的地震传感器的空间混叠频率或感兴趣的最低地震频率。

    Reducing noise in seismic surveying environment
    7.
    发明授权
    Reducing noise in seismic surveying environment 失效
    降低地震勘测环境噪声

    公开(公告)号:US08588030B2

    公开(公告)日:2013-11-19

    申请号:US12774304

    申请日:2010-05-05

    IPC分类号: G01V1/04

    CPC分类号: G01V1/155

    摘要: In one embodiment of the invention a method includes (a) operating a combustion engine at a first activity level corresponding to a first noise level; (b) charging an accumulator with a first pressure input; (c) lowering engine activity level of the engine to a second activity level corresponding to a second noise level that is lower than the first noise level; and (d) seismic sweeping with the vibrator based on the first pressure input and lowering engine noise from the first noise level to the second noise level.

    摘要翻译: 在本发明的一个实施例中,一种方法包括(a)以对应于第一噪声水平的第一活动水平操作内燃机; (b)用第一压力输入对蓄电池充电; (c)将发动机的发动机活动水平降低到对应于低于第一噪声水平的第二噪声水平的第二活动水平; 和(d)基于第一压力输入的振动器进行地震扫描,并且将发动机噪声从第一噪声水平降低到第二噪声水平。

    Methods and apparatus of borehole seismic surveys
    8.
    发明授权
    Methods and apparatus of borehole seismic surveys 有权
    井眼地震勘测方法与装置

    公开(公告)号:US08559267B2

    公开(公告)日:2013-10-15

    申请号:US12146453

    申请日:2008-06-26

    IPC分类号: G01V1/38

    摘要: Methods and apparatus for borehole seismic survey are disclosed comprising a first seismic source under water at a first location and a second seismic source at a second, deeper location. Seismic signals from the seismic sources are recorded with synchronized sensors located in a borehole and source signature data are obtained by combining the recorded seismic signals such that low and high frequency content of the combined source signature data is extended relative to the source signature of the first seismic source and the second seismic source.

    摘要翻译: 公开了用于井眼地震勘测的方法和装置,其包括位于第一位置处的水下的第一震源和位于第二较深位置处的第二震源。 利用位于钻孔中的同步传感器记录来自地震源的地震信号,并通过组合所记录的地震信号获得源签名数据,使得组合的源签名数据的低频和高频内容相对于第一 震源和第二震源。

    Reducing Noise in Seismic Surveying Environment
    9.
    发明申请
    Reducing Noise in Seismic Surveying Environment 失效
    地震测量环境中降低噪声

    公开(公告)号:US20110273966A1

    公开(公告)日:2011-11-10

    申请号:US12774304

    申请日:2010-05-05

    IPC分类号: G01V1/155

    CPC分类号: G01V1/155

    摘要: In one embodiment of the invention a method includes (a) operating a combustion engine at a first activity level corresponding to a first noise level; (b) charging an accumulator with a first pressure input; (c) lowering engine activity level of the engine to a second activity level corresponding to a second noise level that is lower than the first noise level; and (d) seismic sweeping with the vibrator based on the first pressure input and lowering engine noise from the first noise level to the second noise level.

    摘要翻译: 在本发明的一个实施例中,一种方法包括(a)以对应于第一噪声水平的第一活动水平操作内燃机; (b)用第一压力输入对蓄电池充电; (c)将发动机的发动机活动水平降低到对应于低于第一噪声水平的第二噪声水平的第二活动水平; 和(d)基于第一压力输入的振动器进行地震扫描,并且将发动机噪声从第一噪声水平降低到第二噪声水平。

    Marine Vibrator with Improved Seal
    10.
    发明申请
    Marine Vibrator with Improved Seal 有权
    海洋振动器改进密封

    公开(公告)号:US20120081997A1

    公开(公告)日:2012-04-05

    申请号:US12966685

    申请日:2010-12-13

    IPC分类号: G01V1/38 G01V1/145

    CPC分类号: G01V1/135 G01V1/38

    摘要: A marine vibrator with improved seal is described. The marine vibrator includes a housing and piston within the housing for generating vibratory signals. The improved seal is comprised of a two-stage seal having a first seal disposed adjacent the water interface and a second seal disposed away from the water interface, thus improving the reliability of the marine vibrator.

    摘要翻译: 描述了具有改进的密封的海洋振动器。 海洋振动器包括在壳体内的壳体和活塞,用于产生振动信号。 改进的密封件包括两级密封件,其具有邻近水界面设置的第一密封件和远离水界面设置的第二密封件,从而提高海洋振动器的可靠性。