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    • 8. 发明申请
    • MAXIMUM DEPTH OF INVESTIGATION OF MEASUREMENTS IN A FORMATION
    • 在形成中测量的最大深度
    • US20120239300A1
    • 2012-09-20
    • US13048833
    • 2011-03-15
    • Jean-Michel Denichou
    • Jean-Michel Denichou
    • G06F19/00G01R33/44
    • G01V3/18
    • The present disclosure relates to a method to determine a volume of clearance surrounding a wellbore. A logging tool is provided. The logging tool may be disposed on a wireline, a drill string, or a wired drill pipe. A formation property is obtained using the logging tool. The formation property may include a voltage, a bulk resistivity, a horizontal resistivity, a vertical resistivity, a porosity, a permeability, a fluid saturation, an NMR relaxation time, a borehole size, a borehole shape, a borehole fluid composition, an MWD parameter, or an LWD parameter. The maximum depth of investigation into the subsurface formation is determined using a model response and a noise level, and the volume of clearance is determined using the determined maximum depth of investigation. The maximum depth of investigation and volume of clearance may be determined even though no boundary layers are detected.
    • 本公开涉及一种确定围绕井筒的间隙的体积的方法。 提供测井工具。 测井工具可以设置在有线,钻柱或有线钻杆上。 使用测井工具获得地层属性。 形成特性可以包括电压,体电阻率,水平电阻率,垂直电阻率,孔隙率,渗透率,流体饱和度,NMR弛豫时间,井眼尺寸,井眼形状,井眼流体组成,MWD 参数或LWD参数。 使用模型响应和噪声水平确定对地下地层的最大深度调查,并使用确定的最大调查深度确定清除量。 即使没有检测到边界层,也可以确定最大的调查深度和清除量。
    • 10. 发明授权
    • Maximum depth of investigation of measurements in a formation
    • 地层测量的最大深度调查
    • US09043153B2
    • 2015-05-26
    • US13048833
    • 2011-03-15
    • Jean-Michel Denichou
    • Jean-Michel Denichou
    • G06F19/00G01V3/18
    • G01V3/18
    • The present disclosure relates to a method to determine a volume of clearance surrounding a wellbore. A logging tool is provided. The logging tool may be disposed on a wireline, a drill string, or a wired drill pipe. A formation property is obtained using the logging tool. The formation property may include a voltage, a bulk resistivity, a horizontal resistivity, a vertical resistivity, a porosity, a permeability, a fluid saturation, an NMR relaxation time, a borehole size, a borehole shape, a borehole fluid composition, an MWD parameter, or an LWD parameter. The maximum depth of investigation into the subsurface formation is determined using a model response and a noise level, and the volume of clearance is determined using the determined maximum depth of investigation. The maximum depth of investigation and volume of clearance may be determined even though no boundary layers are detected.
    • 本公开涉及一种确定围绕井筒的间隙的体积的方法。 提供测井工具。 测井工具可以设置在有线,钻柱或有线钻杆上。 使用测井工具获得地层属性。 形成特性可以包括电压,体电阻率,水平电阻率,垂直电阻率,孔隙率,渗透率,流体饱和度,NMR弛豫时间,井眼尺寸,井眼形状,井眼流体组成,MWD 参数或LWD参数。 使用模型响应和噪声水平确定对地下地层的最大深度调查,并使用确定的最大调查深度确定清除量。 即使没有检测到边界层,也可以确定最大的调查深度和清除量。