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Quantitative characterization method for river island sand body parameters

A quantitative characterization and sand body technology, applied in image data processing, electrical digital data processing, special data processing applications, etc., can solve the problem that the sand body cannot reflect the changes in the length direction and width direction, and the qualitative characterization method lacks the concept of absolute quantity , cannot accurately describe the characteristics of the sand body boundary, etc., to achieve the effect of improving the intuitive sense, avoiding inaccurate results, and high practicability

Active Publication Date: 2019-12-03
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a quantitative characterization method for channel sand body parameters, which overcomes 1 in the prior art: the qualitative characterization method lacks the concept of absolute quantity, and the expression is too broad to accurately describe the core. 2: The quantitative characterization method is too simple to reflect the changes in the length and width directions of the sand body; 3: The combination of the existing qualitative and quantitative characterization methods still cannot accurately describe the boundary of the sand body Features and other issues

Method used

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specific Embodiment approach

[0026] It should be noted that the structures, proportions, sizes, etc. shown in this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope covered by the technical contents disclosed in the present invention without affecting the functions and objectives of the present invention.

[0027] At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practicable scope of the invention and the change or adjustment of its relative relationship shall also be regarded as the practicable scope of the present invention without any su...

Embodiment 1

[0029] The invention discloses a method for quantitatively characterizing channel beach sand body parameters, comprising the following steps:

[0030] Step 1) Determine the coordinate system of the channel sand body to be measured, where the coordinate system includes the X axis and the Y axis, and take the long axis direction of the channel beach body to be measured as the Y axis of the coordinate system, where the length of the channel beach body to be measured is The intersection points of the axis direction and the two ends of the Y axis are point A and point B respectively, where the X axis and the Y axis are perpendicular and the intersection point of the X axis and the Y axis is the origin;

[0031] Step 2) Take the origin in step 1) as the center of the circle, and use the line segment AB between point A and point B as the diameter to make a circle, where the radius of the circle is R 总 , where the angle between the Y axis and the true north direction is α 总 ;

[003...

Embodiment 2

[0037] The invention discloses a method for quantitatively characterizing channel beach sand body parameters, comprising the following steps:

[0038] Step 1) Determine the coordinate system of the channel sand body to be measured, where the coordinate system includes the X axis and the Y axis, and take the long axis direction of the channel beach body to be measured as the Y axis of the coordinate system, where the length of the channel beach body to be measured is The intersection points of the axis direction and the two ends of the Y axis are point A and point B respectively, where the X axis and the Y axis are perpendicular and the intersection point of the X axis and the Y axis is the origin;

[0039] Step 2) Take the origin in step 1) as the center of the circle, and use the line segment AB between point A and point B as the diameter to make a circle, where the radius of the circle is R 总 , where the angle between the Y axis and the true north direction is α 总 ;

[004...

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Abstract

The invention discloses a quantitative characterization method for river island sand body parameters. The method includes: firstly, describing the scale and direction of a to-be-measured heart beach sand body; describing the shape information of the to-be-measured heart beach sand body through dimensionless quantity parameters. According to the method, clustering analysis can be carried out on thesizes and shapes of the sand bodies of different river islands; the intuition of describing the sand body form of the river island by a parameter system is improved; the planar form of the heart beach sand body can be accurately and quantitatively characterized through the parameters, the characterization result is more accurate and is closer to the form of the natural river island sand body, thenon-standardization of describing the river island sand body simply through terms such as a spindle shape is avoided, and meanwhile the situation that the river island sand bodies with different forms are described simply through quantitative standards such as the length and the width is also avoided.

Description

technical field [0001] The invention belongs to the technical field of quantitative characterization of braided river sediments, and in particular relates to a method for quantitative characterization of channel beach sand body parameters. Background technique [0002] At present, at home and abroad, there are two ways to characterize the planar shape of braided channel sand bodies, one is qualitative expression: for example, "the center bar sand body is spindle-shaped on the plane, and has a flat bottom and a convex top on the profile"; The other is to directly use numbers for quantitative characterization: for example, "the average thickness of channel sand bodies is 3m, the average length is 700m, and the average width is 250m". These two methods have different degrees of disadvantages, mainly in: [0003] (1) Qualitative characterization method: Although this method can vividly express the planar shape of channel sand bodies, it lacks the concept of absolute quantity. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T11/20G06T7/62
CPCG06T11/203G06T7/62
Inventor 李鹏范倩倩马志欣于占海杨辉刘鹏程肖峰尹涛郑腊年霍明会岳君
Owner PETROCHINA CO LTD
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