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1.发明申请公开(公告)号：US20130043381A1
公开(公告)日：2013-02-21
申请号：US13645248
申请日：2012-10-04
IPC分类号： G01V5/08
CPC分类号： G01V5/08 , E21B43/04 , E21B43/26 , E21B47/082 , G01V5/125
摘要： Fractures at a wellbore wall and in a region surrounding a wellbore wall can be detected by monitoring gamma rays scattered from the fractures. Gamma rays are strategically directed from a tool disposed within the wellbore and to the wall and/or the region. Some of the gamma rays scatter from the fractures and are detected with detectors set a designated axial distance from the gamma ray source. In addition to identifying the presence of the fractures, the location and size of the fractures is also estimated. Based on the location and disposition of the fractures, perforations are formed in the formation to provide communication between the fractures and the wellbore.
摘要翻译： 可以通过监测从裂缝散射的γ射线来检测在井筒壁和井壁周围的区域中的裂缝。 伽马射线从设置在井眼内的工具和壁和/或区域战略性地引导。 一些伽马射线从裂缝中散射，并用检测器设置与伽马射线源的指定轴向距离来检测。 除了确定骨折的存在之外，还估计了骨折的位置和大小。 基于裂缝的位置和位置，在地层中形成穿孔以提供裂缝与井眼之间的连通。
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公开(公告)号：US20140291500A1
公开(公告)日：2014-10-02
申请号：US14305677
申请日：2014-06-16
IPC分类号： E21B47/00
摘要： Voids adjacent a wellbore wall and in a region surrounding a wellbore wall can be detected by monitoring gamma rays scattered from the fractures. Gamma rays are strategically directed from a tool disposed within the wellbore and to the wall and/or the region. Some of the gamma rays scatter from the voids and are detected with detectors set a designated axial distance from the gamma ray source. In addition to identifying the presence of the voids, the location and size of the fractures/perforations is also estimated. Time lapsed imaging of the wellbore wall can yield changes in the voids that in turn can affect permeability of the well. Examples of the voids include fractures and/or perforations.
摘要翻译： 可以通过监测从裂缝散射的伽马射线来检测邻近井眼壁和围绕井壁的区域中的空隙。 伽马射线从设置在井眼内的工具和壁和/或区域战略性地引导。 一些伽马射线从空隙散射，并用与伽马射线源设定的指定轴距的探测器进行检测。 除了确定空隙的存在之外，还估计了断裂/穿孔的位置和尺寸。 井眼壁的时间经过成像可以产生空隙的变化，这又可以影响井的渗透性。 空隙的实例包括断裂和/或穿孔。
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3.发明授权公开(公告)号：US08754362B2
公开(公告)日：2014-06-17
申请号：US13645248
申请日：2012-10-04
IPC分类号： G01V5/08
CPC分类号： G01V5/08 , E21B43/04 , E21B43/26 , E21B47/082 , G01V5/125
摘要： Fractures at a wellbore wall and in a region surrounding a wellbore wall can be detected by monitoring gamma rays scattered from the fractures. Gamma rays are strategically directed from a tool disposed within the wellbore and to the wall and/or the region. Some of the gamma rays scatter from the fractures and are detected with detectors set a designated axial distance from the gamma ray source. In addition to identifying the presence of the fractures, the location and size of the fractures is also estimated. Based on the location and disposition of the fractures, perforations are formed in the formation to provide communication between the fractures and the wellbore.
摘要翻译： 可以通过监测从裂缝散射的γ射线来检测在井筒壁和井壁周围的区域中的裂缝。 伽马射线从设置在井眼内的工具和壁和/或区域战略性地引导。 一些伽马射线从裂缝中散射，并用检测器设置与伽马射线源的指定轴向距离来检测。 除了确定骨折的存在之外，还估计了骨折的位置和大小。 基于裂缝的位置和位置，在地层中形成穿孔以提供裂缝与井眼之间的连通。
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