Time-lapse seismic survey of a reservoir region
    1.
    发明授权
    Time-lapse seismic survey of a reservoir region 有权
    油藏地区延时地震勘测

    公开(公告)号:US07242637B2

    公开(公告)日:2007-07-10

    申请号:US10971883

    申请日:2004-10-22

    IPC分类号: G01V1/28 G01V1/30

    摘要: A method of investigating a reservoir region in a subsurface formation by a time-lapse seismic survey. The subsurface formation comprises a further formation region adjacent to the reservoir region. Data are obtained from a time-lapse seismic survey and includes seismic data of the subsurface formation at a first point in time and a later point in time. The seismic data is processed to obtain a seismic representation of change in a predetermined seismic parameter in the further formation region, whereby the seismic parameter is dependent on stress. The seismic representation of change in the seismic parameter in the further formation region is interpreted for an indication of changes of stress distribution in the further formation region, and a property of the reservoir region is derived using the indication of change of stress distribution in the further formation region.

    摘要翻译: 通过延时地震勘测调查地下地层储层区域的方法。 地下构造包括与储层区域相邻的另外的形成区域。 数据是从延时地震勘测中获得的,并且包括在第一时间点和稍后时间点的地下地层地震数据。 处理地震数据以获得进一步形成区域中的预定地震参数的变化的地震表示,由此地震参数取决于应力。 解释进一步形成区域的地震参数变化的地震表示,用于指示进一步形成区域中应力分布的变化,并且使用更多的应力分布变化指标得出储层区域的性质 形成区域。