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公开(公告)号：US09619731B2
公开(公告)日：2017-04-11
申请号：US14781082
申请日：2014-03-31
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Taketo Akama , Josselin Kherroubi , Arnaud Etchecopar
CPC classification number: G06K9/52 , G01V1/301 , G01V2210/64 , G06T7/68 , G06T7/73 , G06T7/77 , G06T2207/10072 , G06T2207/10136 , G06T2207/20076 , G06T2207/30181
Abstract: Methods for dip determination from an image obtained by a down-hole imaging tool. For each pixel forming the image, a probability that a symmetry axis coincides with the pixel is determined. A probability map is then generated, depicting the determined probability of each pixel coinciding with the symmetry axis. The probability map and the image are then superposed to generate a mapped image. The symmetry axis is then estimated based on the mapped image. Image pixels coinciding with a boundary of the geologic feature are then selected in multiple depth zones, and a segment of a sinusoid is fitted to the selected image pixels within each depth zone. Dip within each of the depth zones is then determined based on the fitted sinusoid segments therein.
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公开(公告)号：US10378346B2
公开(公告)日：2019-08-13
申请号：US14378973
申请日：2013-02-13
Applicant: Schlumberger Technology Corporation
Inventor： Arnaud Etchecopar , Daniel Quesada , Isabelle Le Nir
Abstract: Systems and methods for estimating surface of fracture per volume of rock are provided. The systems include a logging tool, such as a resistivity tool, for generating a borehole image representative of segments of fractures in one or more planes and a processor for estimating surface of fracture per volume of rock (P32) from the segments without the need for defining the one or more planes bearing the segments. The methods include using a downhole logging tool, such as a resistivity tool, to collect data corresponding to segments of fractures in one or more planes, and estimating surface of fracture per volume of rock (P32) by reconstructing theoretical elliptical fractures from the segment data, calculating length of fracture segment per surface of borehole (P21) for the theoretical elliptical fractures, and deriving P32 from P21.
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公开(公告)号：US20160307066A1
公开(公告)日：2016-10-20
申请号：US14781082
申请日：2014-03-31
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Taketo Akama , Josselin Kherroubi , Arnaud Etchecopar
CPC classification number: G06K9/52 , G01V1/301 , G01V2210/64 , G06T7/68 , G06T7/73 , G06T7/77 , G06T2207/10072 , G06T2207/10136 , G06T2207/20076 , G06T2207/30181
Abstract: Methods for dip determination from an image obtained by a down-hole imaging tool. For each pixel forming the image, a probability that a symmetry axis coincides with the pixel is determined. A probability map is then generated, depicting the determined probability of each pixel coinciding with the symmetry axis. The probability map and the image are then superposed to generate a mapped image. The symmetry axis is then estimated based on the mapped image. Image pixels coinciding with a boundary of the geologic feature are then selected in multiple depth zones, and a segment of a sinusoid is fitted to the selected image pixels within each depth zone. Dip within each of the depth zones is then determined based on the fitted sinusoid segments therein.
Abstract translation: 用于通过井下成像工具获得的图像的倾斜确定方法。 对于形成图像的每个像素，确定对称轴与像素一致的概率。 然后生成概率图，描绘所确定的每个像素与对称轴重合的概率。 然后将概率图和图像叠加以生成映射图像。 然后基于映射图像来估计对称轴。 然后在多个深度区域中选择与地质特征的边界相符的图像像素，并且将正弦曲线的段拟合到每个深度区域内的所选择的图像像素。 然后根据其中的拟合的正弦曲线段确定每个深度区域内的浸渍。
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