CN112698404B - Waveform variable-area seismic section display method and device - Google Patents
Waveform variable-area seismic section display method and device Download PDFInfo
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- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
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Abstract
The invention discloses a waveform variable-area seismic section display method and a device, wherein the method comprises the following steps: and determining a transverse drawing ratio according to the transverse logic resolution of the screen of the display device and the number of seismic traces per inch of the display device, drawing an initial seismic section in the generated temporary grating graph when the transverse drawing ratio is not greater than a transverse drawing ratio threshold value, and displaying the temporary grating graph containing the initial seismic section in a drawing area of the display device to obtain the waveform variable-area seismic section. According to the method, the size of the transverse drawing ratio is compared with the size of the transverse drawing ratio threshold, when the transverse drawing ratio is not larger than the transverse drawing ratio threshold, an initial seismic section is drawn in the temporary grating graph with the generated transverse drawing ratio being the transverse drawing ratio threshold, so that a waveform variable-area seismic section is obtained, abnormal phenomena such as black screens in waveform variable-area seismic section display can be eliminated, simultaneously, false frequency phenomena generated by channel extraction processing are avoided, and the waveform variable-area seismic section display effect is improved.
Description
Technical Field
The invention relates to the technical field of seismic exploration, in particular to a waveform variable area seismic section display method and device.
Background
This section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.
Seismic data display, and in particular, stacked profile display, is a fundamental and important module in seismic data processing and interpretation software systems. The seismic data is needed to be displayed in the form of images by means of computer technology, and a visual judgment basis is provided for seismic and geological personnel. The visual and correct earthquake display can better assist geological researchers to accurately analyze the earthquake data and obtain correct conclusions, and has important practical significance for the fields of oil and gas exploration, geological exploration and the like.
The conventional waveform variable-area seismic section display can be divided into 3 categories of waveform display, variable-area display, variable-density display and the like. With waveform variable area display being the more common way among them. The seismic section with the waveform area-variable display can directly display the wave crest or wave trough energy and the form change, has clear and visual geological characteristics and is beneficial to comparison. The basic method for waveform variable area display is to connect discrete sampling points by straight lines to form a waveform curve, and fill the area below the positive half axis or the negative half axis in each period of waveform display with custom colors to more clearly display the change of wave crests or wave troughs perpendicular to the waveform change direction, so that the corresponding geological structure is clearer.
In order to improve the waveform variable area display effect and the display efficiency, various graphic drawing methods are proposed successively. 2007, meng Xiangbin proposes a computer screen variable area display method of seismic data to reduce the distortion and confusion of the seismic profile graphic display. 2010, liu Jicheng use bezier curve fitting to improve the waveform rendering effect. 2014, zhang Zhehui realize the scaling of the seismic profile by customizing a coordinate system, and realize the filling of polygons by calling WindowsAPI functions, thereby avoiding the defects caused by complex filling algorithms. 2016, deng Bowen combines the characteristics of the seismic data and the principle of graphic rasterization, provides a GPU-based rapid drawing algorithm for the seismic section graph, ensures the drawing effect of the seismic section graph, and improves the drawing efficiency.
However, when a large-scale waveform variable-area seismic section is drawn, due to the limitation of the resolution of a computer screen, when the distance between two adjacent corrugated lines is less than one pixel after narrowing to a certain extent, the conventional waveform variable-area section may have an abnormal phenomenon that the whole screen is entirely blackened. In order to solve the problem, the current general solution is to perform channel extraction processing on the seismic data, namely, extracting one seismic channel every n seismic channels as a representative for drawing. Although the method is simple to realize, false frequency can be generated, and the interpretation personnel can be interfered with the overall grasp of the geological condition.
Therefore, how to eliminate abnormal phenomena such as black screen in waveform variable area seismic section display and avoid the aliasing phenomenon generated by channel pumping treatment becomes a problem to be solved urgently.
Disclosure of Invention
The embodiment of the invention provides a waveform variable area seismic section display method, which is used for eliminating abnormal phenomena such as black screen and the like in waveform variable area seismic section display and avoiding false frequency phenomena generated by channel extraction processing, and comprises the following steps:
determining a transverse drawing ratio according to the screen transverse logic resolution of the display device and the seismic trace number per inch of the display device;
When the transverse drawing ratio is not greater than the transverse drawing ratio threshold value, drawing an initial seismic section in the generated temporary grating graph; the transverse drawing ratio of the temporary grating graph is a transverse drawing ratio threshold value, and the number of pixels of the image width is the product of the number of seismic traces of the seismic data in a drawing area and the transverse drawing ratio threshold value;
And displaying the temporary grating graph containing the initial seismic section in a drawing area of the display equipment to obtain the waveform variable-area seismic section.
The embodiment of the invention also provides a waveform variable area seismic section display device, which is used for eliminating abnormal phenomena such as black screen and the like in waveform variable area seismic section display and avoiding the false frequency phenomenon generated by channel pumping processing, and comprises:
The transverse drawing ratio determining module is used for determining the transverse drawing ratio according to the transverse logic resolution of the screen of the display device and the seismic trace number per inch of the display device;
The initial seismic section drawing module is used for drawing an initial seismic section in the generated temporary grating graph when the transverse drawing ratio is not greater than the transverse drawing ratio threshold value; the transverse drawing ratio of the temporary grating graph is a transverse drawing ratio threshold value, and the number of pixels of the image width is the product of the number of seismic traces of the seismic data in a drawing area and the transverse drawing ratio threshold value;
And the seismic section drawing and displaying module is used for displaying the temporary grating graph containing the initial seismic section in a drawing area of the display equipment to obtain the waveform variable-area seismic section.
The embodiment of the invention also provides computer equipment, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the waveform variable area seismic profile display method when executing the computer program.
The embodiment of the invention also provides a computer readable storage medium which stores a computer program for executing the waveform variable area seismic section display method.
In the embodiment of the invention, the transverse drawing ratio is determined according to the transverse logic resolution of the screen of the display device and the number of seismic traces per inch of the display device, when the transverse drawing ratio is not greater than the transverse drawing ratio threshold value, an initial seismic section is drawn in the generated temporary grating graph, and the temporary grating graph containing the initial seismic section is displayed in the drawing area of the display device to obtain the waveform variable-area seismic section. According to the embodiment of the invention, by comparing the size of the transverse drawing ratio with the size of the transverse drawing ratio threshold, when the transverse drawing ratio is not larger than the transverse drawing ratio threshold, an initial seismic section is drawn in the generated temporary grating graph with the transverse drawing ratio being the transverse drawing ratio threshold, so that a waveform variable-area seismic section is obtained, abnormal phenomena such as a black screen in waveform variable-area seismic section display can be eliminated, an aliasing phenomenon generated by channel extraction processing is avoided, and the waveform variable-area seismic section display effect is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 is a flow chart of an implementation of a method for displaying a waveform variable area seismic profile according to an embodiment of the invention;
FIG. 2 is a flowchart illustrating the implementation of step 101 in a method for displaying a waveform variable-area seismic profile according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating the implementation of step 201 in a method for displaying a waveform variable-area seismic profile according to an embodiment of the present invention;
FIG. 4 is a flowchart showing the implementation of step 102 in a method for displaying a waveform-variable-area seismic profile according to an embodiment of the invention;
FIG. 5 is a flowchart showing the implementation of step 103 in a method for displaying a waveform variable-area seismic profile according to an embodiment of the invention;
FIG. 6 is a flowchart of another implementation of a method for displaying a waveform-variable-area seismic profile according to an embodiment of the invention;
FIG. 7 is a flowchart illustrating the implementation of step 601 in a method for displaying a waveform-based variable-area seismic profile according to an embodiment of the present invention;
FIG. 8 is a functional block diagram of a waveform-variable-area seismic section display device according to an embodiment of the invention;
FIG. 9 is a block diagram illustrating a configuration of a transverse mapping ratio determining module 801 in a waveform-variable-area seismic section display device according to an embodiment of the invention;
FIG. 10 is a block diagram of a resolution acquisition unit 901 in a waveform variable area seismic profile display device according to an embodiment of the present invention;
FIG. 11 is a block diagram illustrating an initial seismic profile rendering module 802 in a waveform-based variable-area seismic profile display device according to an embodiment of the invention;
FIG. 12 is a block diagram illustrating a seismic profile rendering display module 803 in a waveform-variable-area seismic profile display device according to an embodiment of the invention;
FIG. 13 is another functional block diagram of a waveform-variable-area seismic section display device according to an embodiment of the invention;
fig. 14 is a block diagram illustrating a second drawing display module 1301 in a waveform-variable-area seismic section display apparatus according to an embodiment of the present invention;
FIG. 15 is a schematic view of a waveform variable area seismic profile of a seismic work area displayed by commercial software provided by an embodiment of the invention;
FIG. 16a is a schematic view of a waveform, variable area seismic section of a seismic work area displayed by certain business software provided by an embodiment of the invention;
FIG. 16b is a schematic view of a waveform variable area seismic profile of a seismic work area drawn using the waveform variable area seismic profile display method provided by embodiments of the invention;
FIG. 17a is a schematic view of a waveform, variable area seismic section of a seismic work area displayed by certain business software provided by an embodiment of the invention;
FIG. 17b is a schematic diagram of a waveform variable area seismic profile of a seismic work area drawn using the waveform variable area seismic profile display method provided by an embodiment of the invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings. The exemplary embodiments of the present invention and their descriptions herein are for the purpose of explaining the present invention, but are not to be construed as limiting the invention.
Fig. 1 shows a flow chart of implementation of the waveform variable area seismic section display method according to the embodiment of the invention, and for convenience of description, only the parts related to the embodiment of the invention are shown, and the details are as follows:
As shown in fig. 1, the method for displaying a waveform variable area seismic section includes:
Step 101, determining a transverse drawing ratio according to the transverse logic resolution of a screen of the display device and the number of seismic traces per inch of the display device;
102, when the transverse drawing ratio is not greater than the transverse drawing ratio threshold value, drawing an initial seismic section in the generated temporary grating graph; the transverse drawing ratio of the temporary grating graph is a transverse drawing ratio threshold value, and the number of pixels of the image width is the product of the number of seismic traces of the seismic data in a drawing area and the transverse drawing ratio threshold value;
And 103, displaying the temporary grating graph containing the initial seismic section in a drawing area of the display equipment to obtain the waveform variable-area seismic section.
And when the waveform deformation area seismic section is displayed, determining a transverse drawing ratio according to the transverse logic resolution of the screen of the display device and the number of seismic channels per inch of the display device. Wherein the screen transverse logical resolution of the display device refers to the number of pixels per inch along the screen width direction.
Further, the lateral draw ratio is compared with a lateral draw ratio threshold, and when the lateral draw ratio is not smaller than the lateral draw ratio threshold, a temporary raster pattern TGraphic is generated. The transverse mapping ratio of the temporary raster graphic TGraphic is a transverse mapping ratio threshold, and the number of pixels of the image width is the product of the number of seismic traces of the seismic data in the mapping area and the transverse mapping ratio threshold, so as to ensure that the mapping areas between the traces are not overlapped and the number of pixels is enough. And then an initial seismic section is drawn in the generated temporary grating pattern TGraphic.
Assuming that k, k 0, N, and M are used to represent the transverse mapping ratio, the transverse mapping ratio threshold, the number of traces of the seismic data in the mapping region, and the number of image width pixels, respectively, m=n×k 0 when k < k 0.
The transversal drawing ratio threshold is a preset transversal drawing ratio threshold, and a person skilled in the art can preset the transversal drawing ratio threshold according to actual situations and specific requirements. For example, the lateral map ratio threshold value is preset to be 2, or preset to be 3, it will be understood by those skilled in the art that the lateral map ratio threshold value may be preset to other values than 2 or 3, such as 4 or 5, etc., which are not particularly limited in the embodiment of the present invention.
In a preferred embodiment, the lateral map ratio threshold is not less than 2 in order to ensure that at least one pixel spacing remains between adjacent traces and for a variable area fill display. In addition, the larger the transverse drawing ratio threshold is, the better the waveform variable area seismic section display effect drawn by using the temporary grating graph is, but the larger the transverse drawing ratio threshold is, the larger the operation amount and the image display speed are brought to the system. And when the transverse drawing ratio threshold is not less than 3, the display effect of the waveform variable area seismic section can be better realized, so that the transverse drawing ratio threshold is preset to be 3 in order to achieve both the display effect and the display efficiency of the waveform variable area seismic section.
After the initial seismic profile is acquired, displaying a temporary grating graph containing the initial seismic profile in a drawing area of the display device, and thus obtaining the waveform variable-area seismic profile. The waveform variable-area seismic section drawn and displayed according to the method can well eliminate abnormal phenomena such as black screen in waveform variable-area seismic section display, meanwhile avoids the false frequency phenomenon generated by channel pumping treatment, and improves the waveform variable-area seismic section display effect.
In the embodiment of the invention, the transverse drawing ratio is determined according to the transverse logic resolution of the screen of the display device and the number of seismic traces per inch of the display device, when the transverse drawing ratio is not greater than the transverse drawing ratio threshold value, an initial seismic section is drawn in the generated temporary grating graph, and the temporary grating graph containing the initial seismic section is displayed in the drawing area of the display device to obtain the waveform variable-area seismic section. According to the embodiment of the invention, by comparing the size of the transverse drawing ratio with the size of the transverse drawing ratio threshold, when the transverse drawing ratio is not larger than the transverse drawing ratio threshold, an initial seismic section is drawn in the generated temporary grating graph with the transverse drawing ratio being the transverse drawing ratio threshold, so that a waveform variable-area seismic section is obtained, abnormal phenomena such as a black screen in waveform variable-area seismic section display can be eliminated, an aliasing phenomenon generated by channel extraction processing is avoided, and the waveform variable-area seismic section display effect is improved.
Fig. 2 shows a flow chart of step 101 in the waveform variable area seismic section display method according to the embodiment of the invention, and for convenience of description, only the relevant parts of the embodiment of the invention are shown, and the details are as follows:
in one embodiment of the present invention, in order to improve accuracy of the transverse mapping ratio, as shown in fig. 2, step 101 of determining the transverse mapping ratio according to the screen transverse logic resolution of the display device and the seismic traces per inch of the display device includes:
Step 201, obtaining the horizontal logic resolution of a screen of a display device;
Step 202, determining a ratio of a screen transverse logic resolution of the display device to the seismic traces per inch of the display device as a transverse drawing ratio.
When the transverse drawing ratio is determined, firstly, the screen transverse logic resolution of the display device is obtained, and then the transverse drawing ratio is determined by utilizing the screen transverse logic resolution of the display device and the seismic traces per inch of the display device. Specifically, the ratio of the screen lateral logic resolution of the display device to the seismic traces per inch of the display device is determined as the lateral mapping ratio.
Assuming that Cx, tx, and k are used to represent the screen transverse logic resolution of the display device, the seismic traces per inch of the display device, and the transverse mapping ratio, respectively, then there are:
In the embodiment of the invention, the accuracy of the transverse drawing ratio can be improved by acquiring the transverse logic resolution of the screen of the display device and determining the ratio of the transverse logic resolution of the screen of the display device to the seismic traces per inch of the display device as the transverse drawing ratio.
Fig. 3 shows a flow chart of step 201 in the method for displaying a waveform variable area seismic section according to the embodiment of the invention, and for convenience of description, only the portion relevant to the embodiment of the invention is shown, and the details are as follows:
In one embodiment of the present invention, in order to improve the efficiency of obtaining the horizontal resolution of the screen, as shown in fig. 3, step 201, obtaining the horizontal resolution of the screen of the display device includes:
In step 301, the screen transverse logic resolution of the display device is obtained by calling GETDEVICECAPS functions in the Delphi programming language.
In one embodiment of the invention, the software environment is a DELPHI programming language. In particular, in acquiring the screen transverse logic resolution, the screen transverse logic resolution of the display device can be acquired by calling GETDEVICECAPS functions in the Delphi programming language, so that the efficiency of acquiring the screen transverse logic resolution is improved.
In the embodiment of the invention, the efficiency of acquiring the screen transverse logic resolution of the display equipment can be improved by calling GETDEVICECAPS functions in the DELPHI programming language to acquire the screen transverse logic resolution.
Fig. 4 shows a flow chart of step 102 in the method for displaying a waveform variable area seismic section according to the embodiment of the invention, and for convenience of description, only the portions relevant to the embodiment of the invention are shown, and the details are as follows:
In an embodiment of the present invention, in order to further improve the display effect of the waveform variable area seismic section, as shown in fig. 4, step 102 of drawing an initial seismic section in the generated temporary raster pattern when the transverse drawing ratio is not greater than the transverse drawing ratio threshold includes:
Step 401, generating a temporary grating graph when the transverse drawing ratio is not greater than a transverse drawing ratio threshold;
Step 402, determining the number of seismic traces of the acquired seismic data of the target research area in the drawing area;
Step 403, drawing an initial seismic section in the temporary grating graph according to the transverse drawing ratio threshold value and the number of seismic channels of the seismic data in the drawing area.
Specifically, in the process of drawing an initial seismic section, a temporary grating pattern is generated when the transverse drawing ratio k is not greater than the transverse drawing ratio threshold k 0. And then determining the number of the seismic channels of the seismic data of the target research area in the drawing area, and drawing an initial seismic section in the generated temporary grating graph based on the transverse drawing ratio threshold value and the number of the seismic channels of the seismic data in the drawing area. Accordingly, the display effect of the waveform variable-area seismic section can be further improved.
In the embodiment of the invention, when the transverse drawing ratio is not greater than the transverse drawing ratio threshold, a temporary grating graph is generated, the number of the seismic channels of the obtained seismic data of the target research area in the drawing area is determined, and according to the transverse drawing ratio threshold and the number of the seismic channels of the seismic data in the drawing area, an initial seismic section is drawn in the temporary grating graph, so that the display effect of the waveform variable-area seismic section can be improved.
Fig. 5 shows a flow chart of step 103 in the method for displaying a waveform variable area seismic section according to the embodiment of the invention, and for convenience of description, only the portions relevant to the embodiment of the invention are shown, which are described in detail below:
in one embodiment of the present invention, in order to improve the efficiency of drawing and displaying the waveform-variable-area seismic section, as shown in fig. 5, step 103 of displaying a temporary grating graph including an initial seismic section in a drawing area of a display device to obtain the waveform-variable-area seismic section includes:
Step 501, a waveform-variant seismic profile is obtained by calling STRECHDRAW functions in the Delphi programming language, and displaying a temporary raster graphic containing the initial seismic profile in a drawing area of a display device.
Wherein the software environment is a DELPHI programming language. Specifically, when the waveform deformation area seismic section is drawn and displayed, the waveform deformation area seismic section can be drawn and displayed in a mode of displaying a temporary grating graph containing the initial seismic section in a drawing area of display equipment by calling STRECHDRAW functions in the Delphi programming language, so that automatic scaling is realized, and the efficiency of drawing and displaying the waveform deformation area seismic section can be improved.
In the embodiment of the invention, the temporary grating graph containing the initial seismic section is displayed in the drawing area of the display equipment by calling STRECHDRAW functions in the DELPHI programming language to obtain the waveform variable area seismic section, so that the efficiency of drawing and displaying the waveform variable area seismic section can be improved.
Fig. 6 shows another implementation flow of the waveform variable area seismic section display method according to the embodiment of the invention, and for convenience of description, only the portion relevant to the embodiment of the invention is shown, and the details are as follows:
In an embodiment of the present invention, in order to improve the effect of drawing and displaying the waveform deformation area seismic section, as shown in fig. 6, the waveform deformation area seismic section display method further includes:
And 601, when the transverse drawing ratio is larger than the transverse drawing ratio threshold value, drawing and displaying the waveform deformation area seismic section in the drawing area according to the transverse drawing ratio.
When the transverse drawing ratio k is larger than the transverse drawing ratio threshold k 0, the waveform variable area seismic section can be directly drawn and displayed in the drawing area according to the transverse drawing ratio k, and the waveform variable area seismic section is not required to be drawn and displayed in a mode of generating a temporary grating pattern. Therefore, the effect of drawing and displaying the waveform variable-area seismic section can be improved.
In the embodiment of the invention, when the transverse drawing ratio is larger than the transverse drawing ratio threshold, the waveform variable area seismic section is drawn and displayed in the drawing area according to the transverse drawing ratio, so that the effect of drawing and displaying the waveform variable area seismic section can be improved.
Fig. 7 shows a flow chart of implementation of step 601 in the waveform-variable-area seismic section display method according to the embodiment of the invention, and for convenience of description, only the portions relevant to the embodiment of the invention are shown, which are described in detail below:
In one embodiment of the present invention, in order to improve the efficiency of drawing and displaying the waveform deformation area seismic section, as shown in fig. 7, step 601 of drawing and displaying the waveform deformation area seismic section according to the transverse drawing ratio in the drawing area when the transverse drawing ratio is greater than the transverse drawing ratio threshold comprises:
in step 701, when the transverse drawing ratio is greater than the transverse drawing ratio threshold, drawing and displaying the waveform deformation area seismic section according to the transverse drawing ratio in the drawing area by calling STRECHDRAW functions in the Delphi programming language.
When the transverse drawing ratio k is larger than the transverse drawing ratio threshold k 0, the waveform variable area seismic section can be drawn and displayed in the drawing area of the display device according to the transverse drawing ratio k by calling a STRECHDRAW function in the DELPHI programming language, so that the efficiency of drawing and displaying the waveform variable area seismic section is improved.
In the embodiment of the invention, when the transverse drawing ratio is larger than the transverse drawing ratio threshold, the efficiency of drawing and displaying the waveform variable area seismic section can be improved by calling STRECHDRAW functions in the DELPHI programming language to draw and display the waveform variable area seismic section in the drawing area according to the transverse drawing ratio.
The embodiment of the invention also provides a waveform variable-area seismic section display device, which is described in the following embodiment. Because the principle of solving the problems of the devices is similar to that of the waveform variable area seismic section display method, the implementation of the devices can be referred to the implementation of the method, and the repetition is omitted.
Fig. 8 shows functional modules of a waveform-variable-area seismic section display device according to an embodiment of the invention, and for convenience of explanation, only parts related to the embodiment of the invention are shown, and the details are as follows:
Referring to fig. 8, each module included in the waveform-variable-area seismic section display device is configured to perform each step in the corresponding embodiment of fig. 1, and detailed descriptions of the waveform-variable-area seismic section display device in fig. 1 and the corresponding embodiment of fig. 1 are omitted herein. In the embodiment of the invention, the waveform variable area seismic section display device comprises a transverse drawing ratio determining module 801, an initial seismic section drawing module 802 and a seismic section drawing display module 803.
The transverse drawing ratio determining module 801 is configured to determine a transverse drawing ratio according to a screen transverse logic resolution of the display device and the seismic traces per inch of the display device.
An initial seismic profile drawing module 802 for drawing an initial seismic profile in the generated temporary grating pattern when the lateral draw ratio is not greater than the lateral draw ratio threshold; the transverse drawing ratio of the temporary grating graph is a transverse drawing ratio threshold value, and the number of pixels of the image width is the product of the number of seismic traces of the seismic data in the drawing area and the transverse drawing ratio threshold value.
The seismic section drawing and displaying module 803 is configured to display a temporary raster graphic including the initial seismic section in a drawing area of the display device, so as to obtain a waveform variable-area seismic section.
Wherein the lateral plot ratio threshold is not less than 2.
In the embodiment of the invention, the transverse drawing ratio determining module 801 determines the transverse drawing ratio according to the screen transverse logic resolution of the display device and the number of seismic traces per inch of the display device, and when the transverse drawing ratio is not greater than the transverse drawing ratio threshold value, the initial seismic section drawing module 802 draws an initial seismic section in the generated temporary grating pattern, and the seismic section drawing display module 803 displays the temporary grating pattern containing the initial seismic section in the drawing area of the display device to obtain the waveform variable area seismic section. According to the embodiment of the invention, by comparing the size of the transverse drawing ratio with the size of the transverse drawing ratio threshold, when the transverse drawing ratio is not larger than the transverse drawing ratio threshold, an initial seismic section is drawn in the generated temporary grating graph with the transverse drawing ratio being the transverse drawing ratio threshold, so that a waveform variable-area seismic section is obtained, abnormal phenomena such as a black screen in waveform variable-area seismic section display can be eliminated, an aliasing phenomenon generated by channel extraction processing is avoided, and the waveform variable-area seismic section display effect is improved.
Fig. 9 shows a schematic structure of a transverse drawing ratio determining module 801 in a waveform-variable-area seismic section display device according to an embodiment of the invention, and for convenience of explanation, only the portions related to the embodiment of the invention are shown, and the details are as follows:
In an embodiment of the present invention, in order to improve accuracy of the lateral drawing ratio, referring to fig. 9, each unit included in the lateral drawing ratio determining module 801 is configured to perform each step in the corresponding embodiment of fig. 2, and detailed descriptions in fig. 2 and the corresponding embodiment of fig. 2 are omitted herein. In the embodiment of the present invention, the transverse drawing ratio determining module 801 includes a resolution obtaining unit 901 and a transverse drawing ratio determining unit 902.
A resolution acquisition unit 901 for acquiring a screen transverse logical resolution of the display device.
A transverse drawing ratio determining unit 902, configured to determine a ratio of a screen transverse logic resolution of the display device to a seismic trace per inch of the display device as a transverse drawing ratio.
In the embodiment of the present invention, the resolution obtaining unit 901 obtains the horizontal logic resolution of the screen of the display device, and the horizontal drawing ratio determining unit 902 determines the ratio of the horizontal logic resolution of the screen of the display device to the number of seismic traces per inch of the display device as the horizontal drawing ratio, so that the accuracy of the horizontal drawing ratio can be improved.
Fig. 10 shows a schematic structure of a resolution obtaining unit 901 in a waveform-variable-area seismic section display device according to an embodiment of the invention, and for convenience of explanation, only the portions related to the embodiment of the invention are shown, and the details are as follows:
In an embodiment of the present invention, in order to improve efficiency of acquiring the horizontal resolution of the screen, referring to fig. 10, each unit included in the resolution acquiring unit 901 is configured to perform each step in the corresponding embodiment of fig. 3, and detailed descriptions of fig. 3 and the corresponding embodiment of fig. 3 are omitted herein. In the embodiment of the present invention, the resolution obtaining unit 901 includes a resolution obtaining subunit 1001.
A resolution acquisition subunit 1001 for acquiring a screen transverse logic resolution of the display device by calling GETDEVICECAPS functions in the DELPHI programming language.
In the embodiment of the present invention, the resolution obtaining subunit 1001 may obtain the screen transverse logic resolution of the display device by calling GETDEVICECAPS functions in the DELPHI programming language, so as to improve the efficiency of obtaining the screen transverse logic resolution.
Fig. 11 shows a schematic structure of an initial seismic profile drawing module 802 in a waveform-variable-area seismic profile display device according to an embodiment of the invention, and for convenience of explanation, only the portions related to the embodiment of the invention are shown in detail as follows:
In an embodiment of the present invention, in order to further improve the display effect of the waveform variable area seismic profile, referring to fig. 11, each unit included in the initial seismic profile drawing module 802 is configured to execute each step in the corresponding embodiment of fig. 4, and detailed descriptions in fig. 4 and the corresponding embodiment of fig. 4 are omitted herein. In the embodiment of the present invention, the initial seismic section drawing module 802 includes a temporary grating pattern generating unit 1101, a seismic trace number determining unit 1102, and an initial seismic section drawing unit 1103.
The temporary raster pattern generating unit 1101 is configured to generate a temporary raster pattern when the lateral drawing ratio is not greater than the lateral drawing ratio threshold.
And a seismic trace number determining unit 1102, configured to determine the number of seismic traces of the acquired seismic data of the target study area in the drawing area.
An initial seismic section drawing unit 1103 is configured to draw an initial seismic section in the temporary raster pattern according to the transverse mapping ratio threshold and the number of seismic traces of the seismic data in the mapping area.
In the embodiment of the present invention, when the transverse drawing ratio is not greater than the transverse drawing ratio threshold, the temporary grating pattern generating unit 1101 generates a temporary grating pattern, and the seismic trace number determining unit 1102 determines the number of seismic traces of the acquired seismic data of the target study area in the drawing area, and according to the transverse drawing ratio threshold and the number of seismic traces of the seismic data in the drawing area, the initial seismic profile drawing unit 1103 draws an initial seismic profile in the temporary grating pattern, so that the display effect of the waveform variable area seismic profile can be improved.
Fig. 12 shows a schematic structure of a seismic section drawing display module 803 in the waveform-variable-area seismic section display device according to the embodiment of the invention, and for convenience of explanation, only the portions related to the embodiment of the invention are shown in detail as follows:
In an embodiment of the present invention, in order to improve the efficiency of drawing and displaying the seismic section with waveform deformation area, referring to fig. 12, each unit included in the seismic section drawing display module 803 is used to execute each step in the corresponding embodiment of fig. 5, and detailed descriptions in fig. 5 and the corresponding embodiment of fig. 5 are omitted herein. In the embodiment of the present invention, the seismic section drawing display module 803 includes a seismic section drawing display unit 1201.
The seismic profile drawing display unit 1201 is configured to obtain a waveform variable area seismic profile by calling STRECHDRAW functions in the DELPHI programming language to display a temporary raster graphic containing an initial seismic profile in a drawing area of the display device.
In the embodiment of the present invention, the seismic profile drawing display unit 1201 displays the temporary raster graphic including the initial seismic profile in the drawing area of the display device by calling STRECHDRAW functions in the DELPHI programming language, so as to obtain the waveform variable area seismic profile, and thus, the efficiency of drawing and displaying the waveform variable area seismic profile can be improved.
Fig. 13 shows another functional module of the waveform-variable-area seismic section display device according to the embodiment of the invention, and for convenience of explanation, only the portions related to the embodiment of the invention are shown in detail as follows:
In an embodiment of the present invention, in order to improve the effect of drawing and displaying the waveform deformation area seismic section, referring to fig. 13, each unit included in the waveform deformation area seismic section display device is used to execute each step in the corresponding embodiment of fig. 6, and specifically please refer to fig. 6 and the related description in the corresponding embodiment of fig. 6, which are not repeated herein. In the embodiment of the present invention, on the basis of the above module structure, the waveform variable-area seismic section display device further includes a second drawing display module 1301.
And a second drawing display module 1301, configured to draw and display the waveform deformation area seismic section according to the transverse drawing ratio in the drawing area when the transverse drawing ratio is greater than the transverse drawing ratio threshold.
In the embodiment of the present invention, when the horizontal drawing ratio is greater than the horizontal drawing ratio threshold, the second drawing display module 1301 draws and displays the waveform variable area seismic section in the drawing area according to the horizontal drawing ratio, so as to improve the effect of drawing and displaying the waveform variable area seismic section.
Fig. 14 shows a schematic structural diagram of a second drawing display module 1301 in a waveform-variable-area seismic section display device provided in an embodiment of the invention, and for convenience of explanation, only the portions relevant to the embodiment of the invention are shown, and the details are as follows:
In an embodiment of the present invention, in order to improve the efficiency of drawing and displaying the waveform deformation area seismic section, referring to fig. 14, each unit included in the second drawing display module 1301 is used to execute each step in the corresponding embodiment of fig. 7, and detailed descriptions in fig. 7 and the corresponding embodiment of fig. 7 are omitted herein. In the embodiment of the present invention, the second drawing display module 1301 includes a second drawing display unit 1401.
A second drawing display unit 1401 for drawing and displaying a waveform shape area seismic section in a drawing area at a transverse drawing ratio by calling STRECHDRAW functions in the DELPHI programming language when the transverse drawing ratio is greater than a transverse drawing ratio threshold.
In the embodiment of the present invention, when the horizontal drawing ratio is greater than the horizontal drawing ratio threshold, the second drawing display unit 1401 can improve the efficiency of drawing and displaying the waveform variable area seismic section by calling STRECHDRAW functions in the DELPHI programming language to draw and display the waveform variable area seismic section in the drawing area according to the horizontal drawing ratio.
Fig. 15 shows a waveform variable area seismic section of a seismic work area displayed by a certain business software provided by an embodiment of the invention, wherein the number of seismic traces per inch Tx of the seismic section is 32 faces/inch, the transverse drawing ratio k is 96/32=3, 2 pixel points are arranged between the traces, and the seismic section is displayed normally.
Fig. 16a shows a waveform variable area seismic section of a seismic work area displayed by a certain business software provided by an embodiment of the invention, and fig. 16b shows a waveform variable area seismic section of a seismic work area drawn by using the waveform variable area seismic section display method provided by the embodiment of the invention. The waveform variable area seismic section of fig. 16a has a seismic trace number Tx of 64traces/inch, a transverse drawing ratio k of 96/64=1.5, less than 1 pixel point between traces, obvious aliasing phenomenon, the seismic section shows a "noodle hanging" phenomenon, and the seismic reflection waveform characteristics are distorted. The waveform variable area seismic section of fig. 16b has no aliasing and "noodle hanging" phenomenon, and the true seismic reflection characteristics are restored.
Fig. 17a shows a waveform variable area seismic section of a seismic work area displayed by a certain business software provided by an embodiment of the present invention, and fig. 17b shows a waveform variable area seismic section of a seismic work area drawn by using the waveform variable area seismic section display method provided by the embodiment of the present invention. In fig. 17a, the number Tx of seismic traces per inch of the waveform deformation area seismic section is 96 faces/inch, the transverse drawing ratio k is 96/96=1, no pixel points exist among the traces, the traces are basically overlapped, the seismic section completely displays a black screen, and the common phase axis of the seismic reflection cannot be seen. While the waveform-variant seismic profile reflection characteristics depicted in fig. 17b are still better preserved.
The embodiment of the invention also provides computer equipment, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the waveform variable area seismic profile display method when executing the computer program.
The embodiment of the invention also provides a computer readable storage medium which stores a computer program for executing the waveform variable area seismic section display method.
In summary, in the embodiment of the present invention, the transverse drawing ratio is determined according to the transverse logic resolution of the screen of the display device and the number of seismic traces per inch of the display device, when the transverse drawing ratio is not greater than the transverse drawing ratio threshold, an initial seismic section is drawn in the generated temporary grating pattern, and the temporary grating pattern including the initial seismic section is displayed in the drawing area of the display device, so as to obtain the waveform variable area seismic section. According to the embodiment of the invention, by comparing the size of the transverse drawing ratio with the size of the transverse drawing ratio threshold, when the transverse drawing ratio is not larger than the transverse drawing ratio threshold, an initial seismic section is drawn in the generated temporary grating graph with the transverse drawing ratio being the transverse drawing ratio threshold, so that a waveform variable-area seismic section is obtained, abnormal phenomena such as a black screen in waveform variable-area seismic section display can be eliminated, an aliasing phenomenon generated by channel extraction processing is avoided, and the waveform variable-area seismic section display effect is improved.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. A method of displaying a waveform variable area seismic profile, comprising:
determining a transverse drawing ratio according to the screen transverse logic resolution of the display device and the seismic trace number per inch of the display device;
When the transverse drawing ratio is not greater than the transverse drawing ratio threshold value, drawing an initial seismic section in the generated temporary grating graph; the transverse drawing ratio of the temporary grating graph is a transverse drawing ratio threshold value, and the number of pixels of the image width is the product of the number of seismic traces of the seismic data in a drawing area and the transverse drawing ratio threshold value;
displaying a temporary grating graph containing the initial seismic section in a drawing area of display equipment to obtain a waveform variable-area seismic section;
drawing an initial seismic section in the generated temporary raster pattern when the transverse drawing ratio is not greater than the transverse drawing ratio threshold, including: generating a temporary grating pattern when the transverse drawing ratio is not greater than the transverse drawing ratio threshold; determining the number of seismic channels of the obtained seismic data of the target research area in the drawing area; drawing an initial seismic section in a temporary grating graph according to a transverse drawing ratio threshold value and the number of seismic channels of the seismic data in a drawing area;
When the transverse drawing ratio is larger than the transverse drawing ratio threshold value, drawing and displaying the waveform variable-area seismic section in the drawing area according to the transverse drawing ratio;
Determining a lateral mapping ratio based on a screen lateral logic resolution of the display device and a number of seismic traces per inch of the display device, comprising:
acquiring the horizontal logic resolution of a screen of the display device;
Determining the ratio of the screen transverse logic resolution of the display device to the seismic traces per inch of the display device as a transverse drawing ratio; the lateral plot ratio threshold is not less than 2.
2. The method of waveform-area-variable seismic section display of claim 1, wherein obtaining a screen-wise logical resolution of a display device comprises:
the screen-wise logic resolution of the display device is obtained by calling GETDEVICECAPS functions in the DELPHI programming language.
3. The method of displaying a wave-form variable-area seismic section according to claim 1, wherein displaying a temporary raster graphic containing an initial seismic section in a drawing area of a display device to obtain the wave-form variable-area seismic section, comprises:
a waveform-variant seismic profile is obtained by calling STRECHDRAW functions in the Delphi programming language, and displaying a temporary raster graphic containing the initial seismic profile within a drawing area of the display device.
4. The method of claim 1, wherein the step of mapping and displaying the waveform variable area seismic profile in the mapping area at the transverse mapping ratio when the transverse mapping ratio is greater than the transverse mapping ratio threshold comprises:
When the transverse drawing ratio is greater than the transverse drawing ratio threshold, drawing and displaying the waveform deformation area seismic section according to the transverse drawing ratio in the drawing area by calling STRECHDRAW functions in the DELPHI programming language.
5. A wave-shaped variable area seismic profile display device, comprising:
The transverse drawing ratio determining module is used for determining the transverse drawing ratio according to the transverse logic resolution of the screen of the display device and the seismic trace number per inch of the display device;
The initial seismic section drawing module is used for drawing an initial seismic section in the generated temporary grating graph when the transverse drawing ratio is not greater than the transverse drawing ratio threshold value; the transverse drawing ratio of the temporary grating graph is a transverse drawing ratio threshold value, and the number of pixels of the image width is the product of the number of seismic traces of the seismic data in a drawing area and the transverse drawing ratio threshold value;
the seismic section drawing display module is used for displaying a temporary grating graph containing the initial seismic section in a drawing area of display equipment to obtain a waveform variable-area seismic section;
The initial seismic profiling module includes:
A temporary grating pattern generation unit for generating a temporary grating pattern when the lateral drawing ratio is not greater than the lateral drawing ratio threshold;
The seismic channel number determining unit is used for determining the number of seismic channels of the acquired seismic data of the target research area in the drawing area;
the initial seismic section drawing unit is used for drawing an initial seismic section in the temporary grating graph according to the transverse drawing ratio threshold value and the number of seismic channels of the seismic data in the drawing area;
The second drawing display module is used for drawing and displaying the waveform variable-area seismic section in the drawing area according to the transverse drawing ratio when the transverse drawing ratio is larger than the transverse drawing ratio threshold value;
the transverse drawing ratio determining module comprises:
A resolution obtaining unit for obtaining a horizontal logic resolution of a screen of the display device;
A lateral drawing ratio determining unit for determining a ratio of a screen lateral logic resolution of the display device to the number of seismic traces per inch of the display device as a lateral drawing ratio; the lateral plot ratio threshold is not less than 2.
6. The waveform-variable-area seismic section display device of claim 5, wherein the resolution acquisition unit comprises:
A resolution acquisition subunit for acquiring the screen transverse logic resolution of the display device by calling GETDEVICECAPS functions in the DELPHI programming language.
7. The wave form variable area seismic section display device of claim 5, wherein the seismic section mapping display module comprises:
and the seismic section drawing display unit is used for displaying a temporary grating graph containing the initial seismic section in a drawing area of the display device by calling STRECHDRAW functions in the Delphi programming language to obtain the waveform variable-area seismic section.
8. The wave form variable area seismic section display device of claim 5, wherein the second mapping display module comprises:
And the second drawing display unit is used for drawing and displaying the waveform deformation area seismic section according to the transverse drawing ratio in the drawing area by calling STRECHDRAW functions in the DELPHI programming language when the transverse drawing ratio is larger than the transverse drawing ratio threshold.
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of waveform variable area seismic profile display of any one of claims 1 to 4 when the computer program is executed.
10. A computer-readable storage medium storing a computer program for executing the method of displaying a waveform-variable-area seismic profile according to any one of claims 1 to 4.
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| CN104407384B (en) * | 2014-12-08 | 2017-01-25 | 中国石油天然气集团公司 | Seismic section display method |
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