Methods and apparatus to sample heavy oil from a subteranean formation
    23.
    发明授权
    Methods and apparatus to sample heavy oil from a subteranean formation 有权
    从侏儒形成层析样品的方法和装置

    公开(公告)号:US07717172B2

    公开(公告)日:2010-05-18

    申请号:US11755039

    申请日:2007-05-30

    IPC分类号: E21B47/00 E21B49/08

    CPC分类号: E21B49/081 E21B43/24

    摘要: A method of sampling fluid from a subterranean formation includes positioning a first tool having a heater in a borehole so that the heater is adjacent a portion of the subterranean formation; heating with the heater the portion of the subterranean formation; removing the first tool from the borehole; orienting a second tool having a sampling probe in the borehole so that the sampling probe is to contact a portion of the subterranean formation heated by the heater; and obtaining via the sampling probe a fluid sample from the portion of the subterranean formation heated by the heater.

    摘要翻译: 从地下地层采样流体的方法包括将具有加热器的第一工具定位在钻孔中,使得加热器邻近地层的一部分; 用加热器加热地层的一部分; 从钻孔中移除第一个工具; 将具有采样探针的第二工具定向在钻孔中,使得采样探针接触由加热器加热的地下地层的一部分; 以及通过所述采样探针从所述加热器加热的所述地下部分的部分获得流体样品。