CN117523035B - Method, device, equipment and storage medium for densely filling curves in horizontal well section - Google Patents

Method, device, equipment and storage medium for densely filling curves in horizontal well section Download PDF

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CN117523035B
CN117523035B CN202410016179.3A CN202410016179A CN117523035B CN 117523035 B CN117523035 B CN 117523035B CN 202410016179 A CN202410016179 A CN 202410016179A CN 117523035 B CN117523035 B CN 117523035B
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curve
horizontal well
filling
boundary
points
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CN117523035A (en
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王昌宏
冉贤华
陈茂山
黄娜
金瑞锋
杨继云
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Cnpc Oil Gas Exploration Software National Engineering Research Center Co ltd
China National Petroleum Corp
BGP Inc
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Cnpc Oil Gas Exploration Software National Engineering Research Center Co ltd
China National Petroleum Corp
BGP Inc
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V9/00Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/002D [Two Dimensional] image generation
    • G06T11/20Drawing from basic elements, e.g. lines or circles
    • G06T11/203Drawing of straight lines or curves
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/002D [Two Dimensional] image generation
    • G06T11/40Filling a planar surface by adding surface attributes, e.g. colour or texture

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Image Generation (AREA)

Abstract

The invention belongs to the technical field of geophysical well logging interpretation, and discloses a curve densification filling method in a horizontal well section, which comprises the steps of calculating the boundary of a well in the horizontal well section; calculating the boundary of a logging curve in the horizontal well section according to the boundary of the well in the horizontal well section; calculating each section of the logging curve in the horizontal well section in the drawing area according to the boundary of the logging curve in the horizontal well section; calculating polygons used for filling in curve segments of all the segments according to all the segments in the drawing area; finally, according to the principle that the filling colors of the equal depth points are consistent, the polygonal deformation density filling in all curve sections is completed; the invention also discloses a device, equipment and storage medium for densely filling the curves in the section of the horizontal well. The method is used for quickly filling the logging curve in the section of the horizontal well in variable density, and ensures the precision requirement of the variable density filling drawing of the logging curve.

Description

Method, device, equipment and storage medium for densely filling curves in horizontal well section
Technical Field
The invention belongs to the technical field of geophysical well logging interpretation, and relates to a method, a device, equipment and a storage medium for densely filling curves in a horizontal well section.
Background
Horizontal wells are an important technology for developing oil and gas fields and improving recovery efficiency, and with the deep exploration and development, a large number of horizontal well technologies are used in oil field development. The original well is usually corrected by a vertical well and is basically an inclined well, and compared with a horizontal well, the inclined well is basically difficult to draw by an algorithm, and is usually processed according to the horizontal well mode.
At present, various inclined well/horizontal well display technologies exist at home and abroad, but a filling algorithm of a logging curve variable density in a horizontal well section is still relatively difficult, software capable of correctly and rapidly realizing the algorithm is not much, and the logging software of most horizontal well sections generally does not support the filling method in order to avoid complexity. Therefore, the variable density filling method for the logging curves in the horizontal well section, which can meet the precision requirement of users and can be drawn rapidly, has important significance.
Disclosure of Invention
The invention aims to provide a curve densification filling method in a horizontal well section so as to meet the basic requirement of a user on the variable density display of a logging curve in the horizontal well section, and has the advantages of quick drawing speed and good display effect;
it is another object of the present invention to provide a device, apparatus and storage medium for densely packing curves in a horizontal well section.
The technical scheme adopted by the invention for realizing the purposes is as follows:
a curve densification filling method in a horizontal well section comprises the following steps:
obtaining a boundary of a well in a horizontal well section;
calculating the boundary of a logging curve in the horizontal well section according to the boundary of the well in the horizontal well section;
calculating each section of the logging curve in the horizontal well section in the drawing area according to the boundary of the logging curve in the horizontal well section;
calculating polygons used for filling in curve segments of all the segments according to all the segments in the drawing area;
and (5) finishing polygonal deformation density filling in all curve sections.
By way of definition, obtaining the boundaries of the well in the flat profile comprises the steps of:
obtaining the position relation between logging data and the well track according to the projection of the well track of the horizontal well on the section;
and obtaining the boundary of the well in the horizontal well section according to the position relation between the logging data and the well track.
As a second definition, the boundaries of the log in the horizontal well section are calculated from the boundaries of the well in the horizontal well section by the following method:
and interpolating and calculating the boundary of the logging curve in the horizontal well section according to the well boundary in the horizontal well section and the position of the logging curve head.
As a third definition, each segment of the log in the horizontal well section within the plot area is calculated from the boundaries of the log in the horizontal well section, comprising the steps of:
and (3) obtaining the intersection point of the boundary of the logging curve in the horizontal well section and the rectangle of the drawing area, and finally obtaining each segment of the logging curve in the horizontal well section in the drawing area through combination.
As a fourth definition, from each segment in the rendering area, a polygon for filling in a curve segment of each segment is calculated, comprising the steps of:
sequentially taking a curve segment of each segment, and intersecting with a given filling base line to obtain continuous curve segments of the curve segment on the same side of the filling base line;
adding the curve path boundary points into the curve small sections to obtain curve points composed of the curve small section points and the curve path boundary points;
calculating the positions of each point of the curve point in a world coordinate system according to the sounding of each point in the curve point;
calculating projection points of each point of the curve points on the filling base line;
the above-mentioned projection points are added into curve small segments to form a polygon for filling colour.
By way of further limitation, the polygonal deformation density filling in all curve segments is accomplished by the steps of:
1) Taking out four points from the polygon in the direction of small depth measurement value, namely taking out two points from the curve point and the projection point respectively to form a quadrilateral, and converting the quadrilateral into a pixel coordinate system;
2) Calculating the position of a painting brushing dead point and the filling color according to the principle that the filling colors of the equal-depth points are the same;
3) Interpolating attribute values of each quadrilateral point in a brushing dead point under a pixel coordinate system, and obtaining colors of each point through a color look-up table;
4) Setting the colors of the rest points in the painting brush according to the colors of the points obtained by looking up the color table, and filling the quadrangle by using the painting brush;
5) And (3) sequentially moving the quadrangle forward by one point along the depth measurement increasing direction of the curve small section to form a new quadrangle, and then repeating the steps (2) to (4), thereby finally completing the variable density filling of all quadrangles in the polygon.
The invention also provides a curve densification filling device in the section of the horizontal well, which comprises the following steps:
a well boundary obtaining module for obtaining a boundary of a well in a horizontal well section;
the curve boundary obtaining module is used for calculating the boundary of a logging curve in the horizontal well section according to the boundary of the well in the horizontal well section;
the subsection calculation module is used for calculating each subsection of the logging curve in the horizontal well section in the drawing area according to the boundary of the logging curve in the horizontal well section;
the polygon calculation module is used for calculating polygons used for filling in curve segments of all the segments according to all the segments in the drawing area;
and the polygonal deformation density filling module is used for completing polygonal deformation density filling in all curve sections.
The invention also provides a computer device comprising a processor and a memory for storing at least one section of a computer program loaded by the processor and executing the method for curve densification filling in a horizontal well section.
The invention also provides a storage medium for storing at least one section of computer program for executing the curve densification filling method in the horizontal well section.
Compared with the prior art, the technical proposal adopted by the invention has the following technical progress:
(1) The invention can meet the basic requirement of users on variable density filling and drawing of the logging curves in the horizontal well section, has quick drawing speed, and can not only overview the filling condition of each logging curve in the horizontal well section, but also view the local condition of the logging curve;
(2) According to the invention, by utilizing the painting in the logging software and calculating the colors of each point of the painting, the variable density filling and filling of the logging curve in the section of the horizontal well are achieved, the filling speed is high, and the drawing result is more attractive;
(3) The method has the advantages of quick calculation and good display effect, and is an efficient method for clearly expressing the filling attribute.
In summary, the method is used for quickly filling the variable density of the logging curve in the horizontal well section, ensures the precision requirement of the variable density filling drawing of the logging curve in the horizontal well section, and has good display effect.
Drawings
FIG. 1 is a flow chart of the method of embodiment 1 of the present invention;
FIG. 2 is a boundary view of a log of example 1 of the present invention;
FIG. 3 is a schematic diagram of a small curve segment on the same side of the filling base line for the curve segment in example 1 of the present invention;
FIG. 4 is a schematic diagram of a polygon obtained in example 1 of the present invention;
FIG. 5 is a schematic view of a quadrangle obtained in example 1 of the present invention;
FIG. 6 is a graph showing the left and right boundary misplacement of a trace where a log is located in a horizontal well section according to example 1 of the present invention;
FIG. 7 is a graph showing the calculation of the variable density packing between two points of a log in a horizontal well section according to example 1 of the present invention;
FIG. 8 is a schematic diagram showing the filling of a brush according to embodiment 1 of the present invention;
FIG. 9 is a schematic representation of the variable density packing of logs in a horizontal well section of example 1 of the present invention;
FIG. 10 is a block diagram showing an apparatus according to embodiment 2 of the present invention;
FIG. 11 is a schematic diagram showing the structure of a computer device according to embodiment 2 of the present invention;
fig. 12 is a schematic diagram showing the structure of a computer storage medium according to embodiment 2 of the present invention.
Detailed Description
The invention will be better explained by the following detailed description of the embodiments with reference to the drawings.
Example 1A method for dense packing of curves in a horizontal well section
As shown in fig. 1, the embodiment is a method for densely filling curves in a horizontal well section, which includes the following steps:
s1, obtaining a well boundary in a horizontal well section;
in particular, there are various methods for obtaining the boundary of the well in the horizontal well section, and the method for obtaining the boundary of the well in the horizontal well section provided in this embodiment specifically includes:
obtaining the position relation between logging data and the well track according to the projection of the well track of the horizontal well on the section;
and obtaining the boundary of the well in the horizontal well section according to the position relation between the logging data and the well track.
In this step, according to the positional relationship between the logging data and the well track, the boundary of the well in the horizontal well section is obtained by utilizing the projection of the well track of the horizontal well on the section, comprehensively considering the display width of the logging well, the position of the logging curve in the logging, the width of the logging curve and the like, and obtaining the boundary of the well in the horizontal well section through interpolation calculation.
S2, calculating the boundary of a logging curve in the horizontal well section according to the boundary of the well in the horizontal well section;
in specific implementation, there are various methods for calculating the boundary of the logging curve in the horizontal well section according to the boundary of the well in the horizontal well section, and the method provided in this embodiment specifically includes:
and interpolating and calculating the boundary of the logging curve in the horizontal well section according to the well boundary in the horizontal well section and the position of the logging curve head.
As shown in fig. 2, the outermost layer of the diagram is the boundary of the well, and the dashed line boundary is the left and right boundary of the well (one boundary of the well coincides with the boundary of the well).
S3, calculating each section of the logging curve in the horizontal well section in the drawing area according to the boundary of the logging curve in the horizontal well section;
in specific implementation, according to the boundary of the log in the horizontal well section, there are various methods for calculating each segment of the log in the horizontal well section in the drawing area, and the method provided in this embodiment specifically includes:
and (3) obtaining the intersection point of the boundary of the logging curve in the horizontal well section and the rectangle of the drawing area, and finally obtaining each segment of the logging curve in the horizontal well section in the drawing area through combination.
S4, calculating polygons used for filling in curve segments of all the segments according to all the segments in the drawing area;
in specific implementation, there are various methods for calculating the polygon used for filling in each segmented curve segment, and the method provided in this embodiment is specifically:
sequentially taking a curve segment of each segment, and intersecting with a given filling base line to obtain continuous curve segments of the curve segment on the same side of the filling base line;
adding the curve path boundary points into the curve small sections to obtain curve points composed of the curve small section points and the curve path boundary points;
calculating the positions of each point of the curve point in a world coordinate system according to the sounding of each point in the curve point;
calculating projection points of each point of the curve points on the filling base line;
the above-mentioned projection points are added into curve small segments to form a polygon for filling colour.
Further, the more specific method provided in this embodiment is:
s41, sequentially taking a curve segment of each segment according to each segment in the drawing area, and obtaining continuous curve small segments of the curve segment on the same side of a filling base line according to a given filling base line;
as shown in fig. 3, the curve segment obtained in this step is a continuous curve segment at the same side of the filling baseline, and in fig. 3 ABCEF is an obtained continuous curve segment at the same side of the filling baseline;
s42, adding the boundary point of the curve path into the curve segment to obtain a curve point CurvePoints1;
in the step, the boundary point of the curve path is the boundary control point of the path of the logging curve in the horizontal well section, and is obtained by calculating the boundary point of the well in the horizontal well section and the position of the logging curve in the well; since the curve segment itself is composed of a series of points, the curve boundary point is added into the curve segment to obtain a curve point CurvePoints1, wherein the point D in FIG. 4 is a newly added point influenced by the curve boundary point;
s43, calculating the well section where the Curve points1 are located according to the sounding of each point in the Curve points1, and solving the left and right boundaries of the Curve points1 and the positions of each point in the Curve points1 in the world coordinate system;
s44, calculating a projection point CurvePoints2 of each point in the curve point CurvePoints1 on the filling base line;
s45, connecting the curve point CurvePoints1 with the projection point CurvePoints2 end to form a polygon filled with colors;
as shown in FIG. 4, the polygon ABCDEFF obtained in this step 1 E 1 D 1 C 1 B 1 A 1 Wherein the projections of each point ABCDEF in the Curve point Curve points1 on the filling base line are A respectively 1 B 1 C 1 D 1 E 1 F 1 The method comprises the steps of carrying out a first treatment on the surface of the In the figures A and A 1 Point overlap, F and F 1 The points are overlapped;
s46, calculating world coordinates corresponding to each point in the polygon by utilizing the positions of each point in the Curve points1 in the world coordinate system and the sounding of each point obtained in the step S43.
S5, completing polygonal deformation density filling in all curve sections;
in specific implementation, there are various methods for completing polygonal deformation density filling in all curve segments, and the method provided in this embodiment specifically includes:
1) Taking out four points from the polygon in the direction of small depth measurement value, namely taking out two points from the curve point and the projection point respectively to form a quadrilateral, and converting the quadrilateral into a pixel coordinate system;
2) Calculating the position of a painting brushing dead point and the filling color according to the principle that the filling colors of the equal-depth points are the same;
3) Interpolating attribute values of each quadrilateral point in a brushing dead point under a pixel coordinate system, and obtaining colors of each point through a color look-up table;
4) Setting the colors of the rest points in the painting brush according to the colors of the points obtained by looking up the color table, and filling the quadrangle by using the painting brush;
5) And (3) sequentially moving the quadrangle forward by one point along the depth measurement increasing direction of the curve small section to form a new quadrangle, and then repeating the steps (2) to (4), thereby finally completing the variable density filling of all quadrangles in the polygon.
Further, the more specific method given on the basis of step S41 to step S46 in the process of completing the polygonal deformation density filling in all curve segments in this embodiment is as follows:
s51, respectively taking out two points from a curve point CurvePoints1 and a projection point CurvePoints2 in the polygon to form a quadrilateral;
ABB as shown in fig. 5 1 A 1 For the quadrangle obtained in this step, two points taken out of Curve points1 in the figure are A and B, and two points taken out of Curve points2 in the projection point are A 1 And B 1 Forms a quadrilateral ABB 1 A 1
S52, converting four points of the quadrangle from world coordinates to pixel coordinates;
s53, calculating the position of a painting and brushing dead point in logging software aiming at the quadrangle; interpolating positions of points of the quadrangle in the drawing and brushing dead points in the logging software according to the pixel level, interpolating and calculating attribute values of the interpolation points according to the attribute values of the dead points, searching colors of the interpolation points through an attribute value color look-up table, and filling the quadrangle through drawing and brushing;
in this step, when the position of the drawing and brushing dead point is calculated for the quadrangle in the logging software, if the logging control points of the well track of the horizontal well are insufficient, the left and right boundaries of the path where the logging curve is located in the section of the horizontal well will generate dislocation in some logging sections, as shown in fig. 6, a in the diagram 1 C 1 The depth is the same, but A 1 C 1 Non-perpendicular to baseline C 1 D 1
Since the same sounding section should be filled with the same color, it is in the straight line A 1 C 1 And B is connected with 1 D 1 Linear gradual change between, regardless of A 1 ,B 1 A specific position on a straight line; thus to achieve thisOne object, need to be connected with A 1 C 1 、B 1 D 1 And making a vertical line D 1 E 1 Perpendicular to A 1 C 1 At E 1 Points, as shown in fig. 7;
handle E 1 、D 1 Two points are used as the starting and stopping points of the section of the painting brush E 1 、D 1 The colors of points between the two are according to A 1 、B 1 The attribute value (default is curve value) of each interpolation point is interpolated, and then the attribute value color look-up table is searched to obtain the given color value. Creating a linearly graded drawing brush by using the data, and then calling a drawing function to fill, so as to obtain a drawing brush filling schematic diagram shown in fig. 8;
in the step, the fact that the change of the well track of the horizontal well is large is considered, so that only one quadrangle is drawn at a time, but not one polygon of a curve section is drawn, and the curve in the curve section is distorted for a plurality of times, so that drawing precision is insufficient, and errors of variable density filling are large;
s54, reserving one point in each of CurvePoints1 and CurvePoints2 of curve points in the quadrangle of the composing step S53, and then taking out one point in the quadrangle from CurvePoints1 and CurvePoints2 of projection points respectively, and recombining the points into a quadrangle;
wherein, each fetching point from the curve point CurvePoints1 and the projection point CurvePoints2 in the polygon is not repeated with the previous fetching point;
s55, obtaining pixel coordinates of four points of the quadrilateral, filling the quadrilateral in logging software through painting until all points of a curve point CurvePoints1 and a projection point CurvePoints2 in the polygon are selected;
s56, repeating the steps S52-S54, sequentially selecting the segments in the drawing area until all the segments are selected, and completing polygonal deformation density filling in all curve segments in the segments to realize variable density filling of logging curves in a horizontal well section; as shown in fig. 9, the variable density filling diagram of the log in the horizontal well section obtained in this embodiment is a schematic diagram, and it can be seen that, due to the dislocation of the left and right boundaries of the log in the horizontal well section and the inconsistent length between the outside and the inside of the horizontal well (long outside and short inside), the variable density filling diagram of the log in the horizontal well section obtained in this embodiment has a slight deviation, but this is only obvious when the scale is enlarged, and in general, the problem can be solved by properly encrypting the boundary points of the trace.
Example 2A device, apparatus and storage Medium for dense Curve filling in horizontal well Profile
As shown in fig. 10, the present embodiment is a curve densification filling apparatus in a horizontal well section, including:
a well boundary obtaining module for obtaining a boundary of a well in a horizontal well section;
the curve boundary obtaining module is used for calculating the boundary of a logging curve in the horizontal well section according to the boundary of the well in the horizontal well section;
the subsection calculation module is used for calculating each subsection of the logging curve in the horizontal well section in the drawing area according to the boundary of the logging curve in the horizontal well section;
the polygon calculation module is used for calculating polygons used for filling in curve segments of all the segments according to all the segments in the drawing area;
and the polygonal deformation density filling module is used for completing polygonal deformation density filling in all curve sections.
In the apparatus for curve densification filling in a horizontal well section provided in this embodiment, only the division of the above functional modules is used for illustration when data processing is performed, and in practical application, the above functional allocation may be performed by different functional modules as required.
Based on the same inventive concept, as shown in fig. 11, the present embodiment further provides a computer apparatus, including: at least a processor and a memory for storing at least one computer program loaded by the processor and executing the curve densification filling method in the horizontal well profile of embodiment 1.
Based on the same inventive concept, as shown in fig. 12, the present embodiment also provides a computer readable storage medium, where the storage medium is used to store at least one section of computer program, and the at least one section of computer program is used to execute the curve densification filling method in the horizontal well section of embodiment 1.
It should be noted that, it will be understood by those skilled in the art that all or part of the processes in the above embodiments may be implemented by a computer program to instruct related hardware, and the program may be stored in a computer readable storage medium, and the program may include the processes in the above embodiments of the methods when executed.
Further, it should be appreciated that the computer-readable storage medium (e.g., memory) herein can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the disclosure herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as software or hardware depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
It should be noted that the foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but the present invention is described in detail with reference to the foregoing embodiment, and it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The method for densely filling the curve in the section of the horizontal well is characterized by comprising the following steps of:
obtaining a boundary of a well in a horizontal well section;
calculating the boundary of a logging curve in the horizontal well section according to the boundary of the well in the horizontal well section;
calculating each section of the logging curve in the horizontal well section in the drawing area according to the boundary of the logging curve in the horizontal well section;
according to the boundary of the logging curve in the horizontal well section, each segment of the logging curve in the horizontal well section in the drawing area is calculated, and the method comprises the following steps:
obtaining intersection points of the boundary of the logging curve in the horizontal well section and the rectangle of the drawing area, and finally obtaining each section of the logging curve in the horizontal well section in the drawing area through combination;
calculating polygons used for filling in curve segments of all the segments according to all the segments in the drawing area;
the method for calculating the polygon used for filling in the curve segment of each segment comprises the following steps:
sequentially taking a curve segment of each segment, and intersecting with a given filling base line to obtain continuous curve segments of the curve segment on the same side of the filling base line;
adding the curve path boundary points into the curve small sections to obtain curve points composed of the curve small section points and the curve path boundary points;
calculating the positions of each point of the curve point in a world coordinate system according to the sounding of each point in the curve point;
calculating projection points of each point of the curve points on the filling base line;
adding the projection points into curve segments to form a polygon for filling colors;
completing polygonal deformation density filling in all curve sections;
the polygonal deformation density filling in all curve segments is completed, and the method comprises the following steps:
1) Taking out four points from the polygon in the direction of small depth measurement value, namely taking out two points from the curve point and the projection point respectively to form a quadrilateral, and converting the quadrilateral into a pixel coordinate system;
2) Calculating the position of a painting brushing dead point and the filling color according to the principle that the filling colors of the equal-depth points are the same;
3) Interpolating attribute values of each quadrilateral point in a brushing dead point under a pixel coordinate system, and obtaining colors of each point through a color look-up table;
4) Setting the colors of the rest points in the painting brush according to the colors of the points obtained by looking up the color table, and filling the quadrangle by using the painting brush;
5) And (3) sequentially moving the quadrangle forward by one point along the depth measurement increasing direction of the curve small section to form a new quadrangle, and then repeating the steps (2) to (4), thereby finally completing the variable density filling of all quadrangles in the polygon.
2. The method of dense packing of curves in a horizontal well section according to claim 1, wherein the step of obtaining the boundaries of the well in the horizontal well section comprises the steps of:
obtaining the position relation between logging data and the well track according to the projection of the well track of the horizontal well on the section;
and obtaining the boundary of the well in the horizontal well section according to the position relation between the logging data and the well track.
3. The method of dense packing of curves in a horizontal well section according to claim 1, wherein the boundaries of the log curves in the horizontal well section are calculated from the boundaries of the well in the horizontal well section by the following method:
and interpolating and calculating the boundary of the logging curve in the horizontal well section according to the well boundary in the horizontal well section and the position of the logging curve head.
4. A curve densification filling device in a horizontal well section, comprising:
a well boundary obtaining module for obtaining a boundary of a well in a horizontal well section;
the curve boundary obtaining module is used for calculating the boundary of a logging curve in the horizontal well section according to the boundary of the well in the horizontal well section;
the subsection calculation module is used for calculating each subsection of the logging curve in the horizontal well section in the drawing area according to the boundary of the logging curve in the horizontal well section;
according to the boundary of the logging curve in the horizontal well section, each segment of the logging curve in the horizontal well section in the drawing area is calculated, and the method comprises the following steps:
obtaining intersection points of the boundary of the logging curve in the horizontal well section and the rectangle of the drawing area, and finally obtaining each section of the logging curve in the horizontal well section in the drawing area through combination;
the polygon calculation module is used for calculating polygons used for filling in curve segments of all the segments according to all the segments in the drawing area;
the method for calculating the polygon used for filling in the curve segment of each segment comprises the following steps:
sequentially taking a curve segment of each segment, and intersecting with a given filling base line to obtain continuous curve segments of the curve segment on the same side of the filling base line;
adding the curve path boundary points into the curve small sections to obtain curve points composed of the curve small section points and the curve path boundary points;
calculating the positions of each point of the curve point in a world coordinate system according to the sounding of each point in the curve point;
calculating projection points of each point of the curve points on the filling base line;
adding the projection points into curve segments to form a polygon for filling colors;
the polygonal deformation density filling module is used for completing polygonal deformation density filling in all curve sections;
the polygonal deformation density filling in all curve segments is completed, and the method comprises the following steps:
1) Taking out four points from the polygon in the direction of small depth measurement value, namely taking out two points from the curve point and the projection point respectively to form a quadrilateral, and converting the quadrilateral into a pixel coordinate system;
2) Calculating the position of a painting brushing dead point and the filling color according to the principle that the filling colors of the equal-depth points are the same;
3) Interpolating attribute values of each quadrilateral point in a brushing dead point under a pixel coordinate system, and obtaining colors of each point through a color look-up table;
4) Setting the colors of the rest points in the painting brush according to the colors of the points obtained by looking up the color table, and filling the quadrangle by using the painting brush;
5) And (3) sequentially moving the quadrangle forward by one point along the depth measurement increasing direction of the curve small section to form a new quadrangle, and then repeating the steps (2) to (4), thereby finally completing the variable density filling of all quadrangles in the polygon.
5. A computer device, characterized in that it comprises a processor and a memory for storing at least one computer program, which is loaded by the processor and which performs the curve-packing method in a horizontal well section according to any of claims 1-3.
6. A storage medium for storing at least one computer program for executing the method of curve packing in a horizontal well section according to any one of claims 1-3.
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