Method and device for quickly positioning by observing coordinate anomaly shot record

Abstract

The application provides a kind of observation coordinate anomaly shot record fast positioning method and device, the method includes: step 1, load observation system to seismic acquisition shot record;Step 2, calculate linear moveout curve t (x, v) ;Step 3, according to the linear moveout curve calculated, the corresponding x i And t i Reflection amplitude absolute value A i Of shot record is extracted;Step 4, calculate the statistical absolute amplitude of linear moveout curve corresponding time of each channel in shot record;Step 5, output the statistical absolute amplitude E value of each shot record and shot record position information, and sort according to E value from small to large.The observation coordinate anomaly shot record fast positioning method and device can efficiently and intuitively locate the observation coordinate anomaly shot record, meet the needs of fast detection and positioning of abnormal observation shot record in the process of field efficient acquisition and pre-processing.

Description

Technical Field

[0001] This invention relates to the field of seismic exploration data processing technology, and in particular to a method and device for rapid location of shot records with anomalies in observation coordinates. Background Technology

[0002] In the field seismic data acquisition process for oil and gas seismic exploration, the locations of field excitation and receiver points are first determined based on field reconnaissance and observation system design. The coordinates of these points are measured and recorded in the acquisition report. During forward monitoring and indoor processing, an observation system is established based on the acquisition report, and the system data, including coordinate information, is loaded into the acquired shot records, generating the shot point coordinates and the coordinates and offset information of each receiver channel in the shot records. At the beginning of the forward seismic acquisition field data quality control and indoor seismic data processing, the accuracy of the shot receiver point observation coordinates measured in the field and loaded into the shot records must be checked to ensure the accuracy of subsequent data processing and migration imaging.

[0003] Typically, the method for checking the correctness of the observation coordinate information loaded in shot records generally involves performing linear dynamic correction on the shot records using near-shot point seismic trace data. After outputting the linear dynamic correction results, they are displayed on paper or on a computer screen, and each shot record is checked manually and interactively. This method helps processing personnel identify shot records with abnormal observation information. However, in the current widespread application of high shot density and high-efficiency seismic acquisition, manually checking the correctness of observation information for each shot record using interactive methods for the massive amount of shot record data generated by high acquisition efficiency is characterized by a huge workload and low efficiency, which seriously restricts the efficiency of seismic acquisition data quality control and affects the overall progress of acquisition and processing. Therefore, there is an urgent need to develop a convenient, efficient, and intuitive method for checking the correctness of shot record observation information.

[0004] Chinese patent application CN201410305273.7 discloses a method and system for identifying anomalous first arrivals based on the shot-receiver offset domain. The method includes: acquiring seismic data; extracting multiple shot-receiver pairs from the seismic data, each pair including first arrival, midpoint coordinates, excitation point, and receiver point; applying a basic static correction to the first arrivals of the extracted multiple shot-receiver pairs to obtain the first time of each pair; obtaining a pre-set threshold; and identifying anomalous first arrivals from the first arrivals of the extracted multiple shot-receiver pairs based on the first time, the extracted multiple shot-receiver pairs, and the threshold. This invention utilizes the principle that the first arrival time applying the basic static correction in a center-point plane is a smooth plane within a common shot-receiver offset trace set, avoiding the shortcomings of polynomial fitting for first arrivals in a common excitation point trace set, and is suitable for both two-dimensional and three-dimensional exploration.

[0005] Chinese patent application CN201410743510.8 discloses a method and system for removing anomalous first arrivals. The method includes: acquiring seismic data; obtaining shot-receiver distance and first arrival data from the seismic data; gridding the shot-receiver distance and first arrival data from the seismic data; setting a threshold for the number of first arrivals; and removing anomalous first arrivals from the gridded shot-receiver distance and first arrival data according to the threshold. This application provides a method and system for removing anomalous first arrivals by utilizing statistical data on the shot-receiver distance and first arrivals of all shots to divide the shot-receiver distance and first arrivals into grids, deleting all first arrivals from grids where the number of first arrivals is less than a preset threshold, thereby improving the accuracy of removing anomalous first arrivals.

[0006] Chinese patent application CN201711062828.X discloses a method for improving the accuracy of first arrival picking in single-shot seismic records and a data evaluation method. The picking method includes the following steps: excluding energy anomaly channels and transmission error channels in the single-shot record; starting from a first boundary, using M consecutive channels as a sliding unit, sliding channel by channel towards a second boundary, recording the coordinates of the middle channel where the energy is maximum within the sliding unit; recalculating the offset and theoretical first arrival time based on the coordinates; extending the theoretical first arrival time along the time direction by 300-500 ms to obtain a first time window; using N consecutive sampling points starting at the top of the first time window as a first unit, sliding along the time direction to the bottom of the first time window, and calculating the actual first arrival time. The evaluation method includes using the above picking method to pick the actual first arrival time during the seismic data evaluation process. This invention can solve the problem of incorrect first arrival picking due to shot-receiver relationship errors and can meet the needs of field single-shot record monitoring and automatic evaluation.

[0007] The above-mentioned existing technologies are all quite different from the present invention and have failed to solve the technical problem we want to solve. Therefore, we have invented a new method and device for rapid location of shot records with anomalies in observation coordinates. Summary of the Invention

[0008] The purpose of this invention is to provide a method and device for rapid location of shot records with abnormal observation coordinates, addressing the need for rapid verification of the accuracy of observation information from efficient data acquisition.

[0009] The objective of this invention can be achieved through the following technical measures: a method for rapid location of shot records with anomaly observed coordinates, comprising:

[0010] Step 1: Load the observation system onto the seismic acquisition shot record;

[0011] Step 2: Calculate the linear dynamic correction curve t(x,v);

[0012] Step 3: Based on the calculated linear dynamic correction curve, extract the corresponding x from the shot record.i and t i The absolute value of the reflection amplitude A i ;

[0013] Step 4: Calculate the statistical absolute amplitude of each linear dynamic correction curve in the shot record at the corresponding time.

[0014] Step 5: Output the statistical absolute amplitude E value and shot record position information for each shot record, and sort them in ascending order of E value.

[0015] The objective of this invention can also be achieved through the following technical measures:

[0016] In step 2, the linear dynamic correction curve t(x,v) is calculated based on the offset x and surface velocity v of each receiver channel in the shot record.

[0017] In step 5, unlike normal shot records, in shot records with obvious abnormalities in the observed coordinates, the linear dynamic correction curve is mostly located below the first arrival time of the shot record, and the statistical absolute amplitude of the abnormal shot record will be significantly higher than that of the normal shot record.

[0018] The method for rapid location of shot records with anomalies in observation coordinates also includes, after step 5, step 6, displaying a statistical histogram of the sum of absolute amplitudes and determining the range of the sum of abnormal absolute amplitudes.

[0019] In step 6, based on the significant difference in the distribution range of the statistical absolute amplitude between the normal and abnormal shot records under linear dynamic correction, the distribution range of the statistical absolute amplitude of the normal and abnormal shot records is determined.

[0020] The rapid location method for anomaly shot records in the observation coordinates also includes, after step 6, step 7, adjusting the color bar of the planar distribution attribute base map display based on the determined absolute amplitude and range of the anomaly.

[0021] In step 7, based on the distribution range of the normal and abnormal statistical absolute amplitude E determined in step 6, the display color bar of the E value plane distribution map is adjusted to distinguish and display the E values ​​of normal shot records and abnormal shot records.

[0022] The method for rapid location of shot records with abnormal observation coordinates also includes, after step 7, step 8, locating the position of the abnormal shot record based on the difference in displayed color, and obtaining the shot record coordinates and ID information.

[0023] In step 8, the spatial location of the abnormal shot record is determined based on the color difference of the marker points; and the ID number of the shot record and its x and y coordinates are queried to locate the abnormal shot record.

[0024] The objective of this invention can also be achieved through the following technical measures: a rapid positioning device for shot records with abnormal observation coordinates, comprising:

[0025] The statistical amplitude histogram monitoring module, based on sorting the statistical absolute amplitude E of each shot record from smallest to largest and performing segmented number statistics, displays the number of shot records in different amplitude segments using histograms and monitors the distribution range of statistical absolute amplitude of abnormal shot records.

[0026] The statistical amplitude plane distribution map monitoring module displays the statistical absolute amplitude E of different shot records at the corresponding coordinate positions (X,Y) with different colored markers, forming a plane distribution map of E values, and monitors the spatial location of shot records with abnormal statistical absolute amplitude.

[0027] The objective of this invention can also be achieved through the following technical measures:

[0028] In this statistical amplitude histogram monitoring module, based on the significant difference in the statistical absolute amplitude E between normal and abnormal shot records under linear dynamic correction, the distribution range of normal and abnormal E values ​​is determined.

[0029] In the statistical amplitude plane distribution map monitoring module, the display color bar of the plane distribution map is adjusted according to the determined normal and abnormal statistical absolute amplitude distribution range to distinguish the statistical absolute amplitude of normal shot records and abnormal shot records, quickly locate the location point of the abnormal shot record in the observation coordinates; and the shot record ID and its coordinate information can be queried through the plane distribution map marker points.

[0030] The present invention discloses a method and apparatus for rapid location of shot records with abnormal observation coordinates. Based on the linear dynamic correction time curve, the sum of the absolute values ​​of the reflection amplitude at corresponding times in each trace of the shot record is calculated. This results in the formation of a statistical distribution histogram of energy extracted from the linear dynamic correction curves of all shot records, as well as a statistical amplitude planar distribution map. The distribution range of abnormally high energy is determined based on the statistical amplitude distribution histogram. Color bars on the statistical amplitude planar distribution map are then used to highlight the locations of shot points with high statistical amplitude, enabling rapid location of abnormal shot records. After interactive querying of abnormal shot record information, the records are separated. This invention can efficiently and intuitively locate shot records with abnormal observation coordinates, meeting the needs for rapid detection and location of abnormal observation shot records during efficient field acquisition and forward processing. Attached Figure Description

[0031] Figure 1 This is a flowchart of a specific embodiment of the rapid location method for shot records with anomalies in observation coordinates according to the present invention;

[0032] Figure 2 This is a schematic diagram of a shot record and its linear dynamic correction time curve showing abnormal observation information in a specific embodiment 1 of the present invention;

[0033] Figure 3 This is a schematic histogram of the distribution of the statistical absolute amplitude of the linear dynamic correction curves of all shot records in a specific embodiment 1 of the present invention;

[0034] Figure 4 This is a schematic diagram of the planar distribution of the statistical absolute amplitude of all shot records in a specific embodiment 1 of the present invention, which is displayed in different colors.

[0035] Figure 5 This is a schematic diagram illustrating how the present invention queries abnormal shot record information from a statistical amplitude plane distribution map in a specific embodiment 1.

[0036] Figure 6 This is a schematic diagram of a shot record and its linear dynamic correction time curve after re-measuring the observation information of the abnormal shot record in Example 1 in a specific embodiment 2 of the present invention;

[0037] Figure 7 This is a schematic diagram of the statistical amplitude distribution histogram after re-measuring the observation information of the abnormal shot record in Example 1 in a specific embodiment 2 of the present invention;

[0038] Figure 8 This is a schematic diagram of the statistical amplitude plane distribution after re-measuring the observation information of the abnormal shot record in Example 1 in a specific embodiment 2 of the present invention;

[0039] Figure 9 This is a schematic diagram of the planar distribution of the statistical absolute amplitude of all shot records in a specific embodiment 3 of the present invention, which is displayed in different colors.

[0040] Figure 10 This is a schematic diagram of a shot record and its linear dynamic correction time curve showing abnormal observation information in a specific embodiment 3 of the present invention;

[0041] Figure 11 In a specific embodiment 3 of the present invention, Figure 10 A schematic diagram of the shot record and its linear dynamic correction time curve after re-measuring the observation information of the shot record with anomalies. Detailed Implementation

[0042] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0043] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, and / or combinations thereof.

[0044] The rapid location method for shot records with anomalies in observation coordinates according to the present invention specifically includes the following steps:

[0045] Step 1: Load the seismic acquisition shot record into the observation system;

[0046] Step 2: Calculate the linear dynamic correction curve t(x,v) based on the offset distance x and surface velocity v of each receiver channel in the shot record;

[0047] Step 3: Based on the calculated linear dynamic correction curve, extract the corresponding x from the shot record. i and t i The absolute value of the reflection amplitude A i ;

[0048] Step 4: Calculate the statistical absolute amplitude of each linear dynamic correction curve in the shot record at the corresponding time.

[0049] Step 5: Output the statistical absolute amplitude E value and shot record position information for each shot record, and sort them in ascending order of E value.

[0050] In step 5, unlike normal shot records, in shot records caused by obvious anomalies in the observation coordinates, the linear dynamic correction curve is mostly located below the first arrival time of the shot record, and the statistical absolute amplitude of abnormal shot records will be significantly higher than that of normal shot records.

[0051] The present invention also includes a rapid location device for shot records with observed coordinate anomalies, the device comprising:

[0052] The statistical amplitude histogram monitoring module, based on sorting the statistical absolute amplitude E of each shot record from smallest to largest and performing segmented quantity statistics, displays the number of shot records in different amplitude segments using histograms and monitors the distribution range of statistical absolute amplitude of abnormal shot records.

[0053] The statistical amplitude plane distribution map monitoring module displays the statistical absolute amplitude E of different shot records at the corresponding coordinate positions (X,Y) with different colored markers, forming a plane distribution map of E values, and monitors the spatial location of shot records with abnormal statistical absolute amplitude.

[0054] In the statistical amplitude histogram monitoring module, based on the significant difference in the statistical absolute amplitude E between normal and abnormal shot records under linear dynamic correction, the distribution range of normal and abnormal E values ​​can be intuitively determined.

[0055] In the statistical amplitude plane distribution map monitoring module, based on the determined normal and abnormal statistical absolute amplitude distribution ranges, the display color bars of the plane distribution map are adjusted to differentiate the statistical absolute amplitudes of normal and abnormal shot records, quickly locating the position points of abnormal shot records at observation coordinates. Shot record IDs and their coordinate information can be queried through the marker points on the plane distribution map.

[0056] This invention discloses a method and apparatus for rapid location of shot records with abnormal observation coordinates. It calculates the sum of the absolute values ​​of the reflection amplitudes at corresponding times in each trace of the shot record based on the linear dynamic correction time curve. Based on this, it generates a statistical distribution histogram of the energy extracted from the linear dynamic correction curves of all shot records, as well as a statistical amplitude planar distribution map. The distribution range of abnormally high energy is determined based on the statistical amplitude distribution histogram. Color bars on the statistical amplitude planar distribution map are then used to highlight the locations of shot points with high statistical amplitudes, enabling rapid location of abnormal shot records. After interactively querying information on abnormal shot records, they are separated. This invention can efficiently and intuitively locate shot records with abnormal observation coordinates, meeting the needs for rapid detection and location of abnormal observation shot records during efficient field acquisition and forward processing.

[0057] In a specific embodiment 1 of the present invention, such as Figure 1 As shown, Figure 1 This is a flowchart of a method for rapid localization of shot records with anomalies in observation coordinates according to the present invention. The method includes the following steps:

[0058] In step 101, the observation system is loaded onto the original seismic acquisition shot records obtained from the field construction.

[0059] In step 102, the linear dynamic correction curve t(x,v) is calculated based on the offset x and surface velocity v of each receiver channel in the shot record.

[0060] like Figure 2 The figure shows the shot record and its linear dynamic correction time curve for a shot with abnormal observation coordinate information in specific embodiment 1. As can be seen from the figure, the linear dynamic correction curve is mostly located below the first arrival time.

[0061] In step 103, based on the calculated linear dynamic correction curve, the corresponding x-values ​​in the shot record are extracted. i and t i The absolute value of the reflection amplitude A i ;

[0062] In step 104, the statistical absolute amplitude of each linear dynamic correction curve in the shot record at the corresponding time is calculated.

[0063] In step 105, the statistical absolute amplitude E value and shot record position information of each shot record are output and sorted in ascending order of E value.

[0064] In step 106, the statistical amplitude histogram monitoring module displays the statistical absolute amplitude E values ​​extracted from each shot record output in step 105 in a segmented statistical manner. For example... Figure 3 As shown, this module displays a histogram of the number of shot records with different statistical absolute amplitudes. The histogram allows for intuitive monitoring of the distribution range of statistical absolute amplitudes in normal and abnormal shot records. Figure 3 As shown, the statistical absolute amplitude values ​​of the abnormal shot records are above 0.25.

[0065] In step 106, within the statistical amplitude histogram monitoring module, based on the significant difference in the distribution range of the statistical absolute amplitude E between normal and abnormal shot records under linear dynamic correction, the distribution range of the statistical absolute amplitude of normal and abnormal shot records can be intuitively determined. For example... Figure 3 As shown, the distribution range of the statistical absolute amplitude values ​​of normal shot records is [0.00, 0.25), and the distribution range of the statistical absolute amplitude values ​​of abnormal shot records is [0.25, 7.50).

[0066] In step 107, in the statistical amplitude plane distribution map monitoring module, based on the distribution range of normal and abnormal statistical absolute amplitude E determined in the statistical amplitude histogram monitoring module in step 106, the display color bar of the E-value plane distribution map is adjusted to differentiate the E-values ​​of normal and abnormal shot records. For example... Figure 4 As shown, normal shot record attribute points with a statistical absolute amplitude distribution range of [0.00, 0.25) are displayed in gray, while abnormal shot record attribute points with a statistical absolute amplitude distribution range of [0.25, 7.50) are displayed in black. According to statistics, there are 5 shot records with abnormal observation coordinate information in specific embodiment 1.

[0067] In step 108, in the statistical amplitude plane distribution map monitoring module, such as Figure 5 As shown, the spatial locations of five abnormal shot records can be determined based on the color differences of the marker points. By clicking on the marker point of an abnormal shot record, the ID number of that shot record, as well as its x and y coordinates, can be retrieved, thus locating the abnormal shot record.

[0068] In a specific embodiment 2 of the present invention, the observation coordinates of the five abnormal shot records located in specific embodiment 1 are remeasured in the field, and the remeasured observation system is loaded. All shot records after loading the new observation system are then processed as follows: Figure 1 The process shown includes each step of the operation.

[0069] like Figure 6 As shown, this is a specific embodiment 1. Figure 2 The shot record shown is accompanied by its recalculated linear dynamic correction curve. Figure 6 It can be seen that the linear dynamic correction curves at this time are all above the initial arrival time.

[0070] like Figure 7 The image shows a histogram of the statistical absolute amplitude distribution extracted from the linear dynamic correction curve of the shot record after re-measurement based on the observed coordinate information. This is similar to the histogram in Specific Example 1. Figure 3 As can be seen from the comparison, the statistical absolute amplitudes are all below 0.25, and there are no abnormal statistical amplitudes.

[0071] like Figure 8 The figure shows the statistical absolute amplitude plane distribution map extracted from the linear dynamic correction curve of the shot record after re-measurement based on the observed coordinate information. As shown in the figure, the method used is the same as in specific embodiment 1. Figure 4 With the same display color bar settings shown, no shot records with abnormal statistical amplitude were observed, indicating that the remeasurement results of the observation information are correct.

[0072] Example 3:

[0073] In a specific embodiment 3 of the present invention, such as Figure 9 The image shows the locations of abnormal shot records identified using different color bars based on the statistical absolute amplitude distribution range. Normal shot record attribute points with a statistical absolute amplitude distribution range of [0.00, 0.45) are displayed in gray, while abnormal shot record attribute points with a statistical absolute amplitude distribution range of [0.45, 0.65) are displayed in black. According to statistics, 21 shot records with abnormal observation coordinate information were found in specific embodiment 3.

[0074] In a specific embodiment 3 of the present invention, such as Figure 10 The figure shows the shot record and its linear dynamic correction time curve for a specific example 3 where the observed coordinate information is abnormal. As can be seen from the figure, the left part of the linear dynamic correction curve is below the first arrival time.

[0075] In a specific embodiment 3 of the present invention, such as Figure 11 As shown, this is a specific embodiment 3 of the method. Figure 10 The image shows the shot record after retesting the abnormal shot record and its recalculated linear dynamic correction curve. (From...) Figure 11It can be seen that the linear dynamic correction curve at this time matches the initial arrival time.

[0076] It is foreseeable and proven in practice that, given the same number of shot records, the method and apparatus for rapid location of anomaly observation information in field seismic acquisition using the method and apparatus of the present invention will be more convenient and efficient for locating anomaly observation information.

[0077] The present invention discloses a method and apparatus for rapid location of abnormal shot records based on observation coordinates. It calculates the sum of the absolute values ​​of the reflection amplitudes at corresponding times in each trace of the shot record based on the linear dynamic correction time curve. Based on this, it generates a statistical distribution histogram of the energy extracted from the linear dynamic correction curves of all shot records, as well as a statistical amplitude planar distribution map. The distribution range of abnormally high energy is determined based on the statistical amplitude distribution histogram. Accordingly, display bars on the statistical amplitude planar distribution map are set to highlight the locations of shot points with high statistical amplitudes, achieving rapid location of abnormal shot records. After interactively querying abnormal shot record information, the abnormal shot records are separated.

[0078] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0079] Except for the technical features described in the specification, all other technologies are known to those skilled in the art.

Claims

1. A method for quick positioning of a coordinate anomaly shot record, characterized in that, The method comprises the following steps: Step 1, loading the observation system to the seismic acquisition shot record; Step 2, calculating the linear moveout curve t(x, v); Step 3, extract the absolute value of the reflection amplitude A i of the corresponding x i and t i from the shot record according to the calculated linear moveout curve. Step 4, calculate the statistical absolute amplitude of each linear moveout curve in the shot record at the corresponding time Step 5, outputting the statistical absolute amplitude E value of each shot record and the shot record position information, and sorting according to the E value from small to large; In step 2, the linear moveout curve t(x, v) is calculated according to the offset x and surface velocity v of each receiving channel in the shot record; In step 5, in the shot record caused by the obvious abnormal reason in the observation coordinates, the linear moveout curve is mostly located below the first arrival time of the shot record, and the statistical absolute amplitude of the abnormal shot record is obviously higher than that of the normal shot record.

2. The method of claim 1, wherein, The method further comprises the following step 6 after step 5: displaying the statistical histogram of the sum of absolute amplitudes and determining the range of abnormal absolute amplitude sum.

3. The method of claim 2, wherein, In step 6, the distribution range of the statistical absolute amplitude of normal and abnormal shot records is determined according to the significant distribution range difference between the statistical absolute amplitude of normal shot records and the statistical absolute amplitude of abnormal shot records.

4. The method of claim 3, wherein, The method further comprises the following step 7 after step 6: adjusting the display color bar of the planar distribution attribute base map according to the determined abnormal absolute amplitude range.

5. The method of claim 4, wherein, In step 7, the display color bar of the E value planar distribution map is adjusted according to the distribution range of the normal and abnormal statistical absolute amplitude E determined in step 6, and the E value of the normal shot record and the abnormal shot record is displayed differently.

6. The method of claim 4, wherein, The method further comprises the following step 8 after step 7: positioning the abnormal shot record position according to the display color difference, and obtaining the shot record coordinate and ID information.

7. The method of claim 6, wherein, In step 8, the spatial position of the abnormal shot record is determined according to the display color difference of the marker point; and the ID number, x and y coordinates of the shot record are inquired, so as to realize the positioning of the abnormal shot record.

8. A device for quick positioning of a coordinate anomaly shot record, characterized in that The device comprises: The statistical amplitude histogram monitoring module displays the number of shot records in different amplitude segments in a histogram based on the statistical absolute amplitude E of each shot record being sorted from small to large and the number of segments being counted, and monitors the distribution range of the statistical absolute amplitude of abnormal shot records; The statistical amplitude planar distribution map monitoring module displays the statistical absolute amplitude E of different shot records as marker points in the corresponding coordinate positions (X, Y) in different colors to form an E value planar distribution map, and monitors the spatial position of the shot record with abnormal statistical absolute amplitude; In the statistical amplitude histogram monitoring module, the distribution range of the normal and abnormal E value is determined according to the significant difference between the statistical absolute amplitude E of normal shot records and the statistical absolute amplitude E of abnormal shot records; In the statistical amplitude planar distribution map monitoring module, the display color bar of the planar distribution map is adjusted according to the determined distribution range of the normal and abnormal statistical absolute amplitude, the statistical absolute amplitude of the normal shot record and the abnormal shot record is displayed differently, and the position of the shot record with abnormal observation coordinates is quickly positioned; the ID and coordinate information of the shot record are inquired through the marker point of the planar distribution map.

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