CN115508894A

CN115508894A - Method, device, equipment and storage medium for determining ground grid parameters

Info

Publication number: CN115508894A
Application number: CN202110697552.2A
Authority: CN
Inventors: 李少英; 张文波; 黄燕; 刘增强; 李晓宇
Original assignee: China National Petroleum Corp; BGP Inc
Current assignee: China National Petroleum Corp; BGP Inc
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-12-23

Abstract

The application provides a method, a device, equipment and a storage medium for determining ground grid parameters, and belongs to the technical field of petroleum geophysical exploration. The method comprises the following steps: determining first grid information and second grid information of a ground data grid based on ground detection seismic data; determining first coordinates of a plurality of shot points of a target area, first coordinates of a plurality of demodulator probes of the target area and second surface elevations of the plurality of shot points based on the vertical seismic profile data; determining offset parameters between the plurality of shot points and the plurality of demodulator probes based on the second coordinates of the plurality of shot points, the second coordinates of the plurality of demodulator probes and the second coordinates of the calculation points in the ground data grid corrected by the correction parameters, the line number and the track number of the calculation points, and the line spacing and the track spacing; and determining the ground grid parameters of the target area based on the offset distance parameters, the first grid information and the second ground elevation. The method improves the accuracy of the determined ground grid parameters.

Description

Method, device, equipment and storage medium for determining ground grid parameters

Technical Field

The application relates to the technical field of petroleum geophysical exploration, in particular to a method, a device, equipment and a storage medium for determining ground grid parameters.

Background

During the oil reservoir exploration process, the ground seismic exploration data and the vertical seismic profile exploration data are seismic wave data for exploring the underground geological structure. The surface seismic survey data is received by a geophone at the surface and the vertical seismic profile survey data is received by a geophone in the underground well. The ground seismic exploration data and the vertical seismic profile exploration data are seismic wave data obtained by different acquisition methods, and in order to better determine the image of the underground geological structure, the ground seismic profile exploration data and the vertical seismic profile exploration data can be synchronously processed, namely the ground seismic exploration data and the vertical seismic profile exploration data are jointly applied to determine ground grid parameters, and the ground grid parameters, the ground seismic profile exploration data and the vertical seismic profile exploration data are combined to better determine the image of the underground geological structure.

In the related technology, the joint depth migration of the ground seismic exploration data and the vertical seismic profile exploration data is realized by the same migration algorithm and the same velocity model. Since the ground grid parameters respectively created by the ground seismic survey data and the vertical seismic profile survey data are used, the accuracy of the processing result is reduced due to the difference between the shot point and the geophone position and the difference of the velocity model caused by the difference.

Disclosure of Invention

The embodiment of the application provides a method, a device, equipment and a storage medium for determining ground grid parameters, which can improve the accuracy of the ground grid parameters. The technical scheme is as follows:

in one aspect, a method for determining ground grid parameters is provided, the method comprising:

acquiring ground detection seismic data and vertical seismic profile data of a target area to be researched;

determining first grid information and second grid information of a ground data grid based on the ground detection seismic data, wherein the ground data grid is a grid formed by a plurality of main survey lines and a plurality of common center points on each main survey line, the first grid information comprises a track number of each common center point, a first earth surface elevation of each common center point and a line number of each main survey line, and the second grid information comprises coordinates of each common center point, line spacing between adjacent main survey lines and track spacing between adjacent common center points;

determining a correction parameter of the coordinate based on the coordinate of a first common central point and the coordinate of a second common central point on each main measuring line, wherein the first common central point and the second common central point are respectively common central points corresponding to a maximum track number and a minimum track number;

determining, based on the vertical seismic profile data, first coordinates of a plurality of shots of the target area, first coordinates of a plurality of demodulator probes of the target area, and second surface elevations of the plurality of shots;

respectively correcting the first coordinates of the plurality of shot points, the first coordinates of the plurality of wave detection points and the first coordinates of the calculation points of the target area through the correction parameters to obtain second coordinates of the plurality of shot points, the second coordinates of the plurality of wave detection points and the second coordinates of the calculation points;

determining line and track numbers of the plurality of shots and the plurality of demodulator probes based on the second coordinates of the plurality of shots, the second coordinates of the plurality of demodulator probes and the second coordinates of the computation points, the line and track numbers of the computation points, and the line and track spacings;

determining offset parameters based on the line numbers and the track numbers of the plurality of shot points and the plurality of demodulator probes, and the line spacing and the track spacing;

and determining the ground grid parameters of the target area based on the offset distance parameters, the first grid information and the second earth surface elevation.

In a possible implementation manner, the determining the correction parameters of the coordinates based on the coordinates of the first common center point and the coordinates of the second common center point on each line includes:

for each main line, determining that the difference value between the ordinate of the first common center point and the ordinate of the second common center point on the main line is a first difference value, and the difference value between the abscissa of the first common center point and the abscissa of the second common center point on the main line is a second difference value;

determining a distance between the first and second common center points based on the first and second difference values;

determining the quotient of the first difference value and the distance to obtain a sine value of an included angle between the main measuring line and an abscissa, wherein the abscissa is the abscissa of the ground data grid;

determining the quotient of the second difference value and the distance to obtain a cosine value of an included angle between the main measuring line and the abscissa;

determining an average value of sine values of included angles between the plurality of main measuring lines and the abscissa to obtain the target sine value;

and determining the average value of the cosine values of the included angles between the plurality of main measuring lines and the abscissa to obtain the target cosine value.

In one possible implementation, the correction parameters include a target sine value and a target cosine value;

the step of correcting the first coordinates of the plurality of shot points, the first coordinates of the plurality of demodulator probes and the first coordinates of the calculation points of the target area respectively through the correction parameters to obtain the second coordinates of the plurality of shot points, the second coordinates of the plurality of demodulator probes and the second coordinates of the calculation points includes:

generating correction relation data based on the target sine value and the target cosine value, wherein two parameters of the correction relation data are the target sine value and the target cosine value respectively, and the correction relation data are relation data with a first coordinate as an independent variable and a second coordinate as a dependent variable;

and respectively correcting the first coordinates of the plurality of shot points, the first coordinates of the plurality of wave detection points and the first coordinates of the calculation points through the correction relation data to obtain second coordinates of the plurality of shot points, the second coordinates of the plurality of wave detection points and the second coordinates of the calculation points.

In one possible implementation, the determining the line number and the track number of the plurality of shots and the plurality of geophones based on the second coordinates of the plurality of shots, the second coordinates of the plurality of geophones, and the second coordinates of the calculation points, the line number and the track number of the calculation points, and the line spacing and the track spacing includes:

for each shot point, determining that the difference value between the abscissa of the shot point and the abscissa of the calculation point is a third difference value, and the difference value between the ordinate of the shot point and the ordinate of the calculation point is a fourth difference value;

determining the quotient of the third difference value and the track spacing to obtain a first track number difference;

determining the sum of the first track number difference and the track number of the calculation point to obtain the track number of the shot point;

determining the quotient of the fourth difference value and the line spacing to obtain a first line number difference;

determining the sum of the first line number difference and the line number of the calculation point to obtain the line number of the shot point;

for each demodulator probe, determining that the difference value between the abscissa of the demodulator probe and the abscissa of the calculation point is a fifth difference value, and the difference value between the ordinate of the demodulator probe and the ordinate of the calculation point is a sixth difference value;

determining the quotient of the fifth difference value and the track spacing to obtain a second track number difference;

determining the sum of the second channel number difference and the channel number of the calculation point to obtain the channel number of the demodulation point;

determining the quotient of the sixth difference value and the line spacing to obtain a second line number difference;

and determining the sum of the second line number difference and the line number of the calculation point to obtain the line number of the detection point.

In one possible implementation, the determining the offset parameter includes determining the offset parameter based on the line number and the track number of the plurality of shot points and the plurality of geophone points, and the line spacing and the track spacing, including:

determining the maximum track number difference in the track number differences of shot points and demodulator probes in a plurality of shot-check pairs in each common-center-point direction, and obtaining the maximum shot-check distance in the common-center-point direction based on the product of the maximum track number difference and the track spacing, wherein each shot-check pair comprises a shot point and a demodulator probe;

obtaining the first maximum offset from the maximum offsets in the direction of the common central points, wherein the first maximum offset is the maximum distance between a shot point and a demodulator probe in a shot-geophone pair in the direction of the common central points;

determining the maximum line number difference in the line number differences of shot points and demodulator probes in a plurality of shot-check pairs in each common-center point line direction, and obtaining the maximum shot-check distance in the common-center point line direction based on the product of the maximum line number difference and the line spacing;

obtaining a second maximum offset from the maximum offsets in the direction of the plurality of concentric point lines, wherein the second maximum offset is the maximum distance between a shot point and a geophone point in a shot-geophone pair in the direction of the concentric point lines;

for each shot point and demodulator probe in each shot-checking pair, determining the distance between the shot point and the demodulator probe based on the line number and the track number of the shot point, the line number and the track number of the demodulator probe, and the line spacing and the track spacing;

and obtaining the maximum distance and the minimum distance between the shot point and the demodulator probe in the shot-geophone pair from the distances between the shot point and the demodulator probe in the shot-geophone pair, and respectively using the maximum distance and the minimum distance as the third maximum offset distance and the minimum offset distance which are respectively the maximum distance and the minimum distance between the shot point and the demodulator probe in the shot-geophone pair on the ground data grid.

In one possible implementation, the determining, for a shot point and a geophone point in each shot-geophone pair, a distance between the shot point and the geophone point based on a line number and a track number of the shot point, a line number and a track number of the geophone point, and the line spacing and the track spacing includes:

determining that the difference value between the line number of the shot point and the line number of the demodulator probe is a seventh difference value, and determining that the difference value between the track number of the shot point and the track number of the demodulator probe is an eighth difference value;

determining the product of the seventh difference and the line spacing to obtain the distance between the shot point and the demodulator probe in the direction of the concentric point line;

determining the product of the eighth difference value and the channel spacing to obtain the distance between the shot point and the demodulator probe in the direction of the common central point;

and determining the distance between the shot point and the wave detection point based on the distance between the shot point and the wave detection point in the direction of the common-center point line and the distance in the direction of the common-center point.

In one possible implementation, the determining the ground grid parameters of the target area based on the offset parameters, the first grid information and the second surface elevation includes:

determining a maximum line number, a minimum line number, a maximum track number and a minimum track number in the first grid information;

determining an average value of the first surface elevations of the plurality of common center points and the second surface elevations of the plurality of shot points to obtain corrected surface elevations of the ground data grid;

the ground grid parameters of the target area are a plurality of the first maximum offset, the second maximum offset, the third maximum offset, the minimum offset, the corrected surface elevation, the maximum line number, the minimum line number, the maximum track number and the minimum track number.

In another aspect, there is provided an apparatus for determining ground grid parameters, the apparatus comprising:

the acquisition module is used for acquiring ground detection seismic data and vertical seismic profile data of a target area to be researched;

a first determining module, configured to determine first grid information and second grid information of a ground data grid based on the ground exploration seismic data, where the ground data grid is a grid formed by a plurality of geolines and a plurality of common center points on each geoline, the first grid information includes a track number of each common center point, a first surface elevation of each common center point, and a line number of each geoline, and the second grid information includes coordinates of each common center point, a line interval between adjacent geolines, and a line interval between adjacent common center points;

the second determining module is used for determining correction parameters of the coordinates based on the coordinates of a first common central point and the coordinates of a second common central point on each main measuring line, wherein the first common central point and the second common central point are common central points corresponding to a maximum track number and a minimum track number respectively;

a third determination module configured to determine first coordinates of a plurality of shots of the target area, first coordinates of a plurality of geophones of the target area, and a second surface elevation of the plurality of shots based on the vertical seismic profile data;

the correction module is used for correcting the first coordinates of the plurality of shot points, the first coordinates of the plurality of demodulator probes and the first coordinates of the calculation points of the target area respectively through the correction parameters to obtain second coordinates of the plurality of shot points, the second coordinates of the plurality of demodulator probes and the second coordinates of the calculation points;

a fourth determining module, configured to determine line numbers and track numbers of the plurality of shots and the plurality of demodulator probes based on the second coordinates of the plurality of shots, the second coordinates of the plurality of demodulator probes, and the second coordinates of the calculation points, the line numbers and track numbers of the calculation points, and the line distances and the track distances;

a fifth determining module, configured to determine offset parameters based on the line numbers and the track numbers of the plurality of shot points and the plurality of demodulator probes, and the line spacing and the track spacing;

a sixth determining module, configured to determine a ground grid parameter of the target area based on the offset parameter, the first grid information, and the second surface elevation.

In one possible implementation, the correction parameter includes a target sine value and a target cosine value, and the second determining module includes:

a first determining unit, configured to determine that a difference between a vertical coordinate of the first common center point and a vertical coordinate of the second common center point on the main line is a first difference, and a difference between a horizontal coordinate of the first common center point and a horizontal coordinate of the second common center point on the main line is a second difference;

a second determining unit, configured to determine a distance between the first common center point and the second common center point based on the first difference and the second difference;

a third determining unit, configured to determine a quotient between the first difference and the distance to obtain a sine value of an included angle between the main measurement line and an abscissa, where the abscissa is an abscissa of the ground data grid;

a fourth determining unit, configured to determine a quotient of the second difference and the distance, to obtain a cosine value of an included angle between the main measurement line and the abscissa;

the fifth determining unit is used for determining the average value of the sine values of included angles between the plurality of main measuring lines and the abscissa to obtain the target sine value;

and the sixth determining unit is used for determining the average value of the cosine values of the included angles between the plurality of main measuring lines and the abscissa, so as to obtain the target cosine value.

the correction module comprises:

a generating unit, configured to generate correction relationship data based on the target sine value and the target cosine value, where two parameters of the correction relationship data are the target sine value and the target cosine value respectively, and the correction relationship data is relationship data in which a coordinate is an independent variable and a second coordinate is a dependent variable;

a seventh determining unit, configured to correct the first coordinates of the multiple shot points, the first coordinates of the multiple demodulator probes, and the first coordinates of the computation points respectively according to the correction relationship data, so as to obtain second coordinates of the multiple shot points, the second coordinates of the multiple demodulator probes, and the second coordinates of the computation points.

In a possible implementation manner, the fourth determining module includes:

an eighth determining unit, configured to determine, for each shot point, that a difference between an abscissa of the shot point and an abscissa of the calculation point is a third difference, and that a difference between an ordinate of the shot point and an ordinate of the calculation point is a fourth difference;

a ninth determining unit, configured to determine a quotient between the third difference and the track pitch to obtain a first track number difference;

a tenth determining unit, configured to determine a sum of the first lane number difference and the lane number of the calculation point, to obtain the lane number of the shot point;

an eleventh determining unit, configured to determine a quotient between the fourth difference and the line spacing to obtain a first line number difference;

a twelfth determining unit, configured to determine a sum of the first line number difference and the line number of the calculation point, to obtain the line number of the shot point;

a thirteenth determining unit configured to determine, for each of the detection points, that a difference between an abscissa of the detection point and an abscissa of the calculation point is a fifth difference, and that a difference between an ordinate of the detection point and an ordinate of the calculation point is a sixth difference;

a fourteenth determining unit, configured to determine a quotient between the fifth difference and the track pitch to obtain a second track number difference;

a fifteenth determining unit, configured to determine a sum of the second channel number difference and the channel number of the calculation point, to obtain the channel number of the demodulation point;

a sixteenth determining unit, configured to determine a quotient of the sixth difference value and the line spacing to obtain a second line number difference;

a seventeenth determining unit, configured to determine a sum of the second line size difference and the line size of the calculation point, to obtain the line size of the detection point.

In one possible implementation, the offset parameters include a first maximum offset, a second maximum offset, a third maximum offset, and a minimum offset, and the fifth determining module includes:

an eighteenth determining unit, configured to determine a maximum track number difference among track number differences between shot points and geophone points in multiple shot-geophone pairs in each common-midpoint direction, and obtain a maximum shot-geophone distance in the common-midpoint direction based on a product of the maximum track number difference and the track pitch, where each shot-geophone pair includes one shot point and one geophone point;

a nineteenth determining unit, configured to obtain the first maximum offset from maximum offsets in the directions of multiple common center points, where the first maximum offset is a maximum distance between a shot point in a shot pair and a geophone point in the direction of the common center point;

a twentieth determining unit, configured to determine a maximum line number difference among line number differences between shot points and demodulator probes in a plurality of shot-check pairs in each common-center point line direction, and obtain a maximum offset in the common-center point line direction based on a product of the maximum line number difference and the line interval;

a twenty-first determining unit, configured to obtain a second maximum offset from maximum offsets in the direction of multiple concentric point lines, where the second maximum offset is a maximum distance between a shot point and a geophone point in a shot-geophone pair in the direction of the concentric point lines;

a twenty-second determining unit, configured to determine, for a shot point and a geophone point in each shot-geophone pair, a distance between the shot point and the geophone point based on a line number and a track number of the shot point, a line number and a track number of the geophone point, and the line spacing and the track spacing;

and a twenty-third determining unit, configured to obtain, from distances between the shot points and the demodulator probes in the multiple shot-test pairs, a maximum distance and a minimum distance between the shot points and the demodulator probes in the shot-test pairs, as a third maximum shot-test distance and a minimum shot-test distance, respectively, where the third maximum shot-test distance and the minimum shot-test distance are the maximum distance and the minimum distance on the ground data grid, respectively.

In a possible implementation manner, the twenty-second determining unit includes:

the first determining subunit is configured to determine that a difference value between the line number of the shot point and the line number of the demodulator probe is a seventh difference value, and determine that a difference value between the track number of the shot point and the track number of the demodulator probe is an eighth difference value;

a second determining subunit, configured to determine a product of the seventh difference and the line spacing to obtain a distance between the shot point and the demodulator probe in a direction of a common-center point line;

a third determining subunit, configured to determine a product of the eighth difference and the inter-track distance, to obtain a distance between the shot point and the demodulator probe in a direction of a common center point;

and the fourth determining subunit is configured to determine the distance between the shot point and the demodulator probe based on the distance between the shot point and the demodulator probe in the direction of the common-center point line and the distance in the direction of the common-center point.

In one possible implementation, the offset parameters include a first maximum offset, a second maximum offset, a third maximum offset, and a minimum offset, and the sixth determining module includes:

a twenty-fourth determining unit, configured to determine a maximum line number, a minimum line number, a maximum track number, and a minimum track number in the first mesh information;

a twenty-fifth determining unit, configured to determine an average value of the first surface elevations of the multiple common center points and the second surface elevations of the multiple shot points, to obtain corrected surface elevations of the ground data grid;

and the composition unit is used for composing a plurality of ground grid parameters of the target area, wherein the ground grid parameters comprise the first maximum offset, the second maximum offset, the third maximum offset, the minimum offset, the corrected earth surface elevation, the maximum line number, the minimum line number, the maximum track number and the minimum track number.

In another aspect, a computer device is provided that includes one or more processors and one or more memories having at least one instruction stored therein, the at least one instruction being loaded by the one or more processors and executed to implement the operations performed by the ground grid parameters of any of the above implementations.

In another aspect, a computer-readable storage medium is provided, in which at least one instruction is stored, and the at least one instruction is loaded and executed by a processor to implement the operations performed by the method for determining ground grid parameters according to any one of the above-described implementation manners.

In another aspect, a computer program product or a computer program is provided, the computer program product or the computer program comprising computer program code, the computer program code being stored in a computer readable storage medium. The processor of the computer device reads the computer program code from the computer-readable storage medium, and the processor executes the computer program code to cause the computer device to perform the operations performed by the above-described method for determining a ground grid parameter.

The technical scheme provided by the embodiment of the application has the beneficial effects that at least:

the embodiment of the application provides a method for determining ground grid parameters, which utilizes first coordinates of a shot point, a demodulator probe and a calculation point, uniformly corrects the line number and the track number of the calculation point and determines the line number and the track number of the shot point and the demodulator probe based on correction parameters, so that uniform ground data grid parameters are obtained from vertical seismic section data and ground seismic detection data, and the uniform ground grid parameters obviously improve the relevance between the vertical seismic section data and the ground seismic detection data, namely the accuracy of the ground grid parameters obtained by the joint processing of the vertical seismic section data and the ground seismic detection data.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a flowchart of a method for determining ground grid parameters according to an embodiment of the present application;

fig. 2 is a block diagram of an apparatus for determining ground grid parameters according to an embodiment of the present application;

fig. 3 is a block diagram of a computer device according to an embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different elements and not for describing a particular sequential order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

The embodiment of the application provides a method for determining ground grid parameters, and with reference to fig. 1, the method comprises the following steps:

step 101: a computer device obtains surface survey seismic data and vertical seismic profile data for a target area to be studied.

Wherein the ground detection seismic data are seismic wave data received by geophones on the ground of the target area; the ground detection seismic data mainly comprise track head data, the track head data of the ground detection seismic data comprise coordinates and surface elevations of a plurality of wave detection points and a plurality of shot points, line numbers of a plurality of main survey lines and the like, and the wave detection points are corresponding to the detectors on the ground. The vertical seismic profile data is seismic wave data received by receivers in a target well in the subsurface of the target area; the vertical seismic profile data mainly comprise trace head data, the trace head data of the vertical seismic profile data comprise coordinates, surface elevations and the like of a plurality of demodulator probes and a plurality of shot points, and the demodulator probes are corresponding to the geophones in the underground well.

In the present embodiment, the coordinates are geodetic coordinates using a reference ellipsoid as a reference surface in geodetic surveying, and the geodetic longitude and the geodetic latitude of the position of any point on the ground are respectively used as the abscissa and the ordinate of the coordinates of the point.

Step 102: the computer device determines first and second mesh information for a ground data mesh based on the ground-sounding seismic data.

The ground data grid is formed by a plurality of main measuring lines and a plurality of common central points on each main measuring line, the first grid information comprises the track number of each common central point, the first earth surface elevation of each common central point and the line number of each main measuring line, the second grid information comprises the coordinate of each common central point, the line distance between adjacent main measuring lines and the track distance between adjacent common central points.

It should be noted that the common center point is the position between the shot point and the demodulator probe; and the computer equipment reads the coordinates of the plurality of shot points and the plurality of wave detection points from the trace head data of the ground detection seismic data, covers the coordinates of the plurality of shot points and the plurality of wave detection points, and takes the average value of the obtained coordinates of the plurality of shot points and the plurality of wave detection points as the coordinate of the common center point. The computer equipment reads the surface elevations of a plurality of shot points and a plurality of wave detection points from the trace head data of the ground detection seismic data, covers the surface elevations of the plurality of shot points and the plurality of wave detection points, and takes the average value of the obtained surface elevations of the plurality of shot points and the plurality of wave detection points as a first surface elevation of a common central point.

The line numbers of the main measuring lines are sequentially sequenced, and the line distances between the two main measuring lines are equal; the track numbers of the common central points on each main measuring line are sequentially sequenced, and the track distance between the two common central points is equal. The line number of the main measuring line can be set and changed according to the requirement; for example, the minimum line number of the inline may be 1000, and the adjacent line numbers may be 1001, 1002, 1003 …, and the like in this order. The track number of the common central point can be set and changed as required; for example, the minimum track number of the common center may be 10001, and the adjacent track numbers may be 10001, 10002, 10003 …, etc. in sequence, and the common center on each line is arranged according to the track number of 10001, 10002, 10003 ….

Step 103: the computer device determines correction parameters for the coordinates based on the coordinates of the first common center point and the coordinates of the second common center point on each inline.

The first common center point and the second common center point are common center points corresponding to the maximum track number and the minimum track number respectively. The correction parameters include a target sine value and a target cosine value.

This step can be achieved by the following steps (1) to (6):

(1) For each main line, the computer device determines that the difference value between the ordinate of the first common center point and the ordinate of the second common center point on the main line is a first difference value, and the difference value between the abscissa of the first common center point and the abscissa of the second common center point on the main line is a second difference value.

(2) The computer device determines a distance between the first and second common center points based on the first and second difference values.

In this step, the computer device adds the square of the first difference to the square of the second difference and then squares the sum by using the pythagorean theorem to obtain the linear distance, i.e., the distance, between the first common center point and the second common center point.

In the embodiment of the present application, the first difference and the second difference are differences between an abscissa and an ordinate of a first common center point of a maximum track number and a second common center point of a minimum track number on the main measurement line, respectively, so that the first difference and the second difference represent an overall variation trend of coordinates of the main measurement line.

(3) And the computer equipment determines the quotient of the first difference value and the distance to obtain a sine value of an included angle between the main measuring line and the abscissa. The abscissa is the abscissa of the ground data grid.

(4) And the computer equipment determines the quotient of the second difference value and the distance to obtain a cosine value of an included angle between the main measuring line and the abscissa.

In the embodiment of the application, sine theorem and cosine theorem are adopted to obtain sine values and cosine values of included angles between each main measuring line and the abscissa.

(5) And the computer equipment determines the average value of the sine values of the included angles between the plurality of main measuring lines and the abscissa to obtain a target sine value.

In the embodiment of the application, an average value of sine values of included angles between the plurality of main measuring lines and the abscissa is used as a target sine value, so that the target sine value represents the deviation of the overall angle of the plurality of main measuring lines on the ground data grid.

(6) And the computer equipment determines the average value of the cosine values of the included angles between the main measuring lines and the abscissa to obtain a target cosine value.

In the embodiment of the present application, an average value of cosine values of a plurality of main lines is taken as a target cosine value, so that the target cosine value represents a deviation of an overall angle of the plurality of main lines on the ground data grid.

Step 104: the computer device determines first coordinates of a plurality of shots of the target area, first coordinates of a plurality of geophones of the target area, and a second surface elevation of the plurality of shots based on the vertical seismic profile data.

The method comprises the steps that the trace head data of the vertical seismic section data comprise first coordinates of a plurality of shot points of a target area, first coordinates of a plurality of demodulator probes of the target area and second surface elevations of the plurality of shot points; the computer equipment reads the first coordinates of the multiple shot points, the first coordinates of the multiple wave detection points and the second surface elevations of the multiple shot points from the track head data to obtain the first coordinates of the multiple shot points, the first coordinates of the multiple wave detection points and the second surface elevations of the multiple shot points.

The plurality of detection points in the vertical seismic profile data are detection points corresponding to receivers located in a target well of the target region.

Step 105: and the computer equipment corrects the first coordinates of the plurality of shot points, the first coordinates of the plurality of wave detection points and the first coordinates of the calculation points of the target area respectively through the correction parameters to obtain second coordinates of the plurality of shot points, the second coordinates of the plurality of wave detection points and the second coordinates of the calculation points.

And the calculation point is a common central point corresponding to the minimum track number on the main measurement line with the minimum line number. The correction parameters include a target sine value and a target cosine value.

This step can be realized by the following steps (1) to (2):

(1) The computer equipment generates correction relation data based on the target sine value and the target cosine value, wherein two parameters of the correction relation data are the target sine value and the target cosine value respectively, and the correction relation data are relation data taking the first coordinate as an independent variable and the second coordinate as a dependent variable.

(2) And the computer equipment corrects the first coordinates of the plurality of shot points, the first coordinates of the plurality of demodulator probes and the first coordinates of the calculation points respectively through correcting the relation data to obtain second coordinates of the plurality of shot points, the second coordinates of the plurality of demodulator probes and the second coordinates of the calculation points.

The correction relationship data is: x1= xcos β + ysin β, y1= ycos β -xsin β.

Wherein x1 is an abscissa of the second coordinate, y1 is an ordinate of the second coordinate, cos β is a target cosine value, sin β is a target sine value, x is an abscissa of the first coordinate, and y is an ordinate of the first coordinate.

And for each shot point, the computer equipment substitutes the first coordinate of the shot point into the correction relation data to obtain a second coordinate of the shot point. And for each detection point, the computer equipment substitutes the first coordinate of the detection point into the correction relation data to obtain a second coordinate of the detection point. And for the calculation point, the computer equipment substitutes the coordinate of the calculation point into the correction relation data to obtain a second coordinate of the calculation point.

In the embodiment of the application, the first coordinates of the plurality of shot points, the first coordinates of the plurality of wave detection points and the first coordinates of the calculation points are corrected to obtain the second coordinates of the plurality of shot points, the second coordinates of the plurality of wave detection points and the second coordinates of the calculation points, namely the coordinates of the plurality of shot points and the plurality of wave detection points on the basis of the ground data grid are obtained, the combination of the plurality of shot points and the plurality of wave detection points with the ground data grid is realized, and the unified correction with the calculation points is realized.

Step 106: the computer device determines the line number and the track number of the plurality of shot points and the plurality of demodulator probes based on the second coordinates of the plurality of shot points, the second coordinates of the plurality of demodulator probes, and the second coordinates of the calculation points, the line number and the track number of the calculation points, and the line spacing and the track spacing.

The determination of the line number and the track number of a plurality of shot points in the step can be realized through the following steps (1) to (5):

(1) The computer equipment determines that the difference value between the abscissa of the shot and the abscissa of the calculation point is a third difference value and the difference value between the ordinate of the shot and the ordinate of the calculation point is a fourth difference value for each shot.

It should be noted that the third difference is a distance between the shot point and the calculated point in the direction of the common center point, and the fourth difference is a distance between the shot point and the calculated point in the direction of the common center point. The common center point line direction is the same direction of the line number, and the common center point line direction is the same direction of the track number.

(2) The computer equipment determines the quotient of the third difference value and the track spacing to obtain a first track number difference.

And if the third difference is the distance between the shot point and the calculation point in the direction of the common central point, the quotient of the third difference and the track spacing is the track number difference between the shot point and the calculation point in the direction of the common central point, namely the first track number difference is the track number difference between the shot point and the calculation point in the direction of the common central point.

(3) And the computer equipment determines the sum of the first track number difference and the track number of the calculation point to obtain the track number of the shot point.

And if the first track number difference is the track number difference of the shot point and the calculation point in the direction of the common central point, adding the track number of the calculation point to the first track number difference to obtain the track number of the shot point, wherein the track number of the shot point is the track number of the shot point relative to the calculation point.

(4) And the computer equipment determines the quotient of the fourth difference value and the line spacing to obtain a first line number difference.

And if the fourth difference is the distance between the shot point and the calculated point in the direction of the concentric point line, the quotient of the fourth difference and the line spacing is the line number difference between the shot point and the calculated point in the direction of the concentric point line, that is, the first line number difference is the line number difference between the shot point and the calculated point in the direction of the concentric point line.

(5) And the computer equipment determines the sum of the first line number difference and the line number of the calculation point to obtain the line number of the shot point.

And if the first line number difference is the line number difference of the shot point and the calculation point in the direction of the concentric point line, adding the line number of the calculation point to the first line number difference to obtain the line number of the shot point, wherein the line number of the shot point is the line number of the shot point relative to the calculation point.

The detection point is a detection point corresponding to a detector located in a target well in the target region. If the target well is an inclined well, the first coordinates of the multiple wave detection points are different, and the determination of the line numbers and the track numbers of the multiple wave detection points in the step 106 can be realized through the following steps A1 to A5:

a1: and for each demodulator probe, the computer equipment determines that the difference value between the abscissa of the demodulator probe and the abscissa of the calculation point is a fifth difference value, and the difference value between the ordinate of the demodulator probe and the ordinate of the calculation point is a sixth difference value.

The fifth difference is a distance between the detected point and the calculated point in the direction of the common center point. The sixth difference is the distance between the detection point and the calculation point in the direction of the concentric point line.

A2: the computer device obtains a second track number difference based on the quotient of the fifth difference value and the track spacing.

And if the fifth difference is the distance between the detection point and the calculation point in the direction of the common center point, the quotient of the fifth difference and the track pitch is the track number difference between the detection point and the calculation point in the direction of the common center point, that is, the second track number difference is the track number difference between the detection point and the calculation point in the direction of the common center point.

A3: and the computer equipment determines the sum of the second channel number difference and the channel number of the calculation point to obtain the channel number of the detection point.

And if the second track number difference is the track number difference of the detection point and the calculation point in the direction of the common center point, adding the track number of the calculation point to the second track number difference to obtain the track number of the detection point, wherein the track number of the detection point is the track number of the detection point relative to the calculation point.

A4: the computer device obtains a second line number difference based on the quotient of the sixth difference value and the line spacing.

And if the sixth difference is the distance between the detection point and the calculation point in the direction of the concentric point line, the quotient of the sixth difference and the track pitch is the line number difference between the detection point and the calculation point in the direction of the concentric point line, that is, the second line number difference is the line number difference between the detection point and the calculation point in the direction of the concentric point line.

A5: and the computer equipment obtains the line number of the wave detection point based on the sum of the second line number difference and the line number of the calculation point.

And if the second line number difference is the line number difference of the detection point and the calculation point in the direction of the concentric point line, adding the line number of the calculation point to the second line number difference to obtain the line number of the detection point, wherein the line number of the detection point is the line number of the detection point relative to the calculation point.

In another possible implementation manner, if the target well is a vertical well, the first coordinates of the multiple detection points are the same, and the first coordinates of the multiple detection points are the first coordinates of the wellhead positions of the target well, then determining the line numbers and the track numbers of the multiple detection points in step 106 may be implemented by:

and the computer equipment determines that the difference value between the abscissa of the wellhead position of the target well and the abscissa of the calculation point is a ninth difference value, and the difference value between the ordinate of the wellhead position and the ordinate of the calculation point is a tenth difference value. And the computer equipment obtains a third track number difference based on the quotient of the ninth difference value and the track spacing, and determines the sum of the third track number difference and the line sum of the calculation points to obtain the track number of the wellhead position. And the computer equipment obtains a third line number difference based on the quotient of the tenth difference value and the line spacing, and obtains the line number of the wellhead position based on the sum of the third line number difference and the line number of the calculation point. And taking the line number and the track number of the wellhead position as the line number and the track number of a plurality of wave detection points.

It should be noted that the computer device writes the track numbers and line numbers of the multiple shot points and the multiple geophone points into the track head data of the vertical seismic profile data, so as to facilitate the subsequent work of establishing a bottom hole velocity model and processing surface problems by using the track numbers and line numbers of the multiple shot points and geophone points.

In the embodiment of the application, the unified ground data grid parameters created by the joint of the ground detection seismic data and the vertical seismic profile data are realized based on the calculation points, the track spacing and the line spacing of the ground data grid.

Step 107: the computer device determines offset parameters based on the line and track numbers, and the line and track spacings of the plurality of shot points and the plurality of demodulator points.

The offset parameters comprise a first maximum offset, a second maximum offset, a third maximum offset and a minimum offset.

This step can be realized by the following steps (1) to (6):

(1) The computer equipment determines the maximum track number difference in the track number differences of the shot points and the demodulator probes in the multiple shot-check pairs in the direction of the common central point, and obtains the maximum shot-check distance in the direction of the common central point based on the product of the maximum track number difference and the track spacing.

It should be noted that each common midpoint direction includes a plurality of shot points and geophone points with the same line number, each offset includes a shot point and a geophone point, the geophone point receives seismic waves of the shot point, and the difference value between the track number of the shot point and the track number of the geophone point is the track number difference between the shot point and the geophone point. The distance between the shot point and the demodulator probe in the shot-geophone pair is the shot-geophone distance; because the track spacing between adjacent track numbers is the same, the distance between the shot point and the demodulator probe with the largest track number difference is the largest, namely the product of the largest track number difference and the track spacing is the largest offset distance in the direction of the common central point.

(2) The computer equipment obtains a first maximum offset from the maximum offsets in the directions of the plurality of common central points.

And the first maximum offset is the maximum distance between a shot point in the offset and a demodulator probe in the direction of the common central point.

It should be noted that each common center point direction corresponds to one maximum offset, and the computer device determines the maximum value of the maximum offsets as the first maximum offset. And the computer equipment writes the maximum offsets into the trace head data of the vertical seismic profile data, so that the subsequent work of establishing a bottom hole velocity model by using the maximum offsets, processing the surface problem and the like is facilitated.

(3) The computer equipment determines the maximum line number difference in the line number differences of the shot points and the demodulator probes in the multiple shot-check pairs in each common-center point line direction, and obtains the maximum shot-check distance in the common-center point line direction based on the product of the maximum line number difference and the line spacing.

It should be noted that each common center point line direction penetrates through a plurality of main measurement lines, each common center point line direction includes a plurality of shot points and demodulator probes with the same track number, and the distance between the shot points and the demodulator probes in the same shot-test pair is a shot-test distance; because the line spacing between adjacent line numbers is the same, the distance between the shot point and the wave detection point with the largest line number difference is the largest, namely the product of the largest line number difference and the line spacing is the largest shot-to-receiver distance in the direction of the concentric point line.

(4) And the computer equipment obtains a second maximum offset from the maximum offsets in the directions of the plurality of concentric point lines.

And the second maximum offset distance is the maximum distance between the shot point and the demodulator probe in the shot-geophone pair in the direction of the concentric point line.

It should be noted that each common center point line direction corresponds to one maximum offset, and the computer device determines the maximum value of the multiple offsets as the second maximum offset. And the computer equipment writes the maximum offsets into the trace head data of the vertical seismic profile data, so that the subsequent work of establishing a bottom hole velocity model by using the maximum offsets, processing the surface problem and the like is facilitated.

(5) The computer equipment determines the distance between the shot point and the wave detection point based on the line number and the track number of the shot point, the line number and the track number of the wave detection point, and the line distance and the track distance for the shot point and the wave detection point in each shot detection pair.

This step can be achieved by the following steps A1-A4:

a1: and the computer equipment determines that the difference value between the line number of the shot point and the line number of the demodulator probe is a seventh difference value, and determines that the difference value between the track number of the shot point and the track number of the demodulator probe is an eighth difference value.

It should be noted that the seventh difference is a line number difference between the shot point and the demodulator probe in the direction of the common center point line, and the eighth difference is a track number difference between the shot point and the demodulator probe in the direction of the common center point.

A2: and the computer equipment determines the product of the seventh difference and the line spacing to obtain the distance between the shot point and the demodulator probe in the direction of the concentric point line.

And if the seventh difference is the line size difference of the shot point and the demodulator probe in the direction of the concentric point line, the product of the seventh difference and the line spacing is the distance between the shot point and the demodulator probe in the direction of the concentric point line.

A3: and the computer equipment determines the product of the eighth difference value and the track spacing to obtain the distance between the shot point and the demodulator probe in the direction of the common central point.

And if the eighth difference value is the track number difference of the shot point and the demodulator probe in the direction of the common central point, the product of the eighth difference value and the track spacing is the distance of the shot point and the demodulator probe in the direction of the common central point.

A4: the computer equipment determines the distance between the shot point and the demodulator probe based on the distance between the shot point and the demodulator probe in the direction of the concentric point line and the distance in the direction of the concentric point line.

In the step, the computer equipment adds the square of the distance between the shot point and the demodulator probe in the direction of the common-center point line and the square of the distance in the direction of the common-center point line and then opens the square by adopting a pythagorean theorem method to obtain the distance between the shot point and the demodulator probe.

(6) And the computer equipment obtains the maximum distance and the minimum distance between the shot point and the wave detection point in the shot detection pairs from the distances between the shot point and the wave detection point in the shot detection pairs, and the maximum distance and the minimum distance are respectively used as a third maximum shot detection distance and a minimum shot detection distance.

And the third maximum offset and the minimum offset are respectively the maximum distance and the minimum distance between the shot point and the demodulator probe in the shot-geophone pair on the ground data grid.

It should be noted that, a distance corresponds to a shot point and a geophone point in each shot-geophone pair, and the computer device determines the maximum value of the distances as the third maximum shot-geophone distance, which is the maximum distance between the shot point and the geophone point in the shot-geophone pair on the ground data grid. And the computer determines the minimum value of the plurality of distances as the minimum offset, and the minimum offset is the minimum distance between the shot point in the shot-check pair and the demodulator probe on the ground data grid. The computer equipment writes the distances into the trace head data of the vertical seismic profile data, so that the subsequent work of establishing a bottom hole velocity model by using the distances, processing surface problems and the like is facilitated.

Step 108: the computer device determines a ground grid parameter of the target area based on the offset distance parameter, the first grid information and the second ground elevation.

And the offset parameters comprise a first maximum offset, a second maximum offset, a third maximum offset and a minimum offset.

This step can be realized by the following steps (1) to (3):

(1) The computer device determines a maximum line number, a minimum line number, a maximum track number, and a minimum track number in the first mesh information.

In the embodiment of the present application, the maximum line number, the minimum line number, the maximum lane number, and the minimum lane number in the first mesh information are determined, and then the overall range of the ground data mesh is determined.

(2) The computer device determines an average of the first surface elevations of the plurality of common center points and the second surface elevations of the plurality of shot points to obtain a corrected surface elevation of the ground data grid.

It should be noted that the first surface elevation of the common center point is an average value of the surface elevations of the plurality of shot points and the plurality of detector points included in the ground exploration seismic data, and is a surface elevation obtained by the ground exploration seismic data, and the second surface elevation of the shot points is a surface elevation obtained by the vertical seismic profile data, and since the ground exploration seismic data and the vertical seismic profile data are obtained in different manners, and an error exists between the ground exploration seismic data and the vertical seismic profile data, an error also exists between the first surface elevation of the common center point and the second surface elevation of the shot points obtained through the ground exploration seismic data and the vertical seismic profile data, the average value of the first surface elevations of the plurality of common center points and the second surface elevations of the plurality of shot points is used as a corrected surface elevation of the ground data grid, so that the accuracy of the corrected surface elevation of the ground data grid is improved.

(3) The computer equipment comprises ground grid parameters of a target area comprising a plurality of first maximum offset, second maximum offset, third maximum offset, minimum offset, corrected surface elevation, maximum line number, minimum line number, maximum track number and minimum track number.

The ground grid parameters comprise a plurality of first maximum offset, second maximum offset, third maximum offset, minimum offset, corrected earth surface elevation, maximum line number, minimum line number, maximum track number and minimum track number; for example, in one possible implementation, the ground grid parameters include a first maximum offset, a second maximum offset, a third maximum offset, a minimum offset, a corrected surface elevation, a maximum line number, a minimum line number, a maximum track number, and a minimum track number. In another possible implementation, the ground grid parameters include a first maximum offset, a second maximum offset, a third maximum offset, a minimum offset, a maximum line number, a minimum line number, a maximum track number, and a minimum track number.

In the embodiment of the present application, the ground grid parameters including the first maximum offset, the second maximum offset, the third maximum offset, the minimum offset, the corrected surface elevation, the maximum line number, the minimum line number, the maximum track number, and the minimum track number are taken as an example for explanation. It should be noted that the computer device writes the obtained ground grid parameters into the grid text file for storage, so as to facilitate the subsequent work of directly calling the ground grid parameters to establish a bottom hole speed model, process surface problems, and the like.

The method determines the ground grid parameters through the combination of the vertical seismic profile data and the ground seismic data, so that the well-ground data combined migration is realized on the same ground data grid; and then, the accuracy of the well-ground speed model can be improved by establishing the well-ground speed model on the basis of the ground grid parameters, and the consistency of ray travel time calculation is improved, so that the earth surface problem can be better processed in the well-ground data joint migration, and the imaging quality is improved.

The embodiment of the present application provides a device for determining ground grid parameters, referring to fig. 2, the device includes:

an obtaining module 201, configured to obtain ground detection seismic data and vertical seismic profile data of a target area to be studied;

a first determining module 202, configured to determine first grid information and second grid information of a ground data grid based on ground detection seismic data, where the ground data grid is a grid formed by a plurality of survey lines and a plurality of common center points on each survey line, the first grid information includes a track number of each common center point, a first surface elevation of each common center point, and a line number of each survey line, and the second grid information includes coordinates of each common center point, a line interval between adjacent survey lines, and a track interval between adjacent common center points;

a second determining module 203, configured to determine a correction parameter of the coordinate based on a coordinate of a first common center point and a coordinate of a second common center point on each main measurement line, where the first common center point and the second common center point are common center points corresponding to a maximum track number and a minimum track number, respectively;

a third determining module 204, configured to determine first coordinates of a plurality of shots of the target area, first coordinates of a plurality of geophones of the target area, and a second surface elevation of the plurality of shots based on the vertical seismic profile data;

the correction module 205 is configured to correct the first coordinates of the multiple shot points, the first coordinates of the multiple demodulator probes, and the first coordinates of the calculation points of the target area respectively through the correction parameters, so as to obtain second coordinates of the multiple shot points, the second coordinates of the multiple demodulator probes, and the second coordinates of the calculation points;

a fourth determining module 206, configured to determine line numbers and track numbers of the multiple shot points and the multiple demodulator probes based on the second coordinates of the multiple shot points, the second coordinates of the multiple demodulator probes, and the second coordinates of the computation points, the line numbers and track numbers of the computation points, and the line distances and track distances;

a fifth determining module 207, configured to determine offset parameters based on the line number and the track number of the multiple shot points and the multiple demodulator probes, and the line spacing and the track spacing;

a sixth determining module 208, configured to determine a ground grid parameter of the target area based on the offset parameter, the first grid information, and the second ground elevation.

In a possible implementation manner, the correction parameter includes a target sine value and a target cosine value, and the second determining module 203 includes:

the first determining unit is used for determining that the difference value between the ordinate of the first common center point and the ordinate of the second common center point on the main measuring line is a first difference value, and the difference value between the abscissa of the first common center point and the abscissa of the second common center point on the main measuring line is a second difference value;

a second determining unit configured to determine a distance between the first common center point and the second common center point based on the first difference value and the second difference value;

a third determining unit, configured to determine a quotient between the first difference and the distance, to obtain a sine value of an included angle between the main measurement line and an abscissa, where the abscissa is an abscissa of the ground data grid;

the fourth determining unit is used for determining the quotient of the second difference value and the distance to obtain a cosine value of an included angle between the main measuring line and the abscissa;

the fifth determining unit is used for determining the average value of the sine values of included angles between the plurality of main measuring lines and the abscissa to obtain a target sine value;

and the sixth determining unit is used for determining the average value of the cosine values of the included angles between the main measuring lines and the abscissa to obtain the target cosine value.

a correction module 205 comprising:

the generating unit is used for generating correction relation data based on the target sine value and the target cosine value, two parameters of the correction relation data are the target sine value and the target cosine value respectively, and the correction relation data are relation data with coordinates as independent variables and second coordinates as dependent variables;

and the seventh determining unit is used for correcting the first coordinates of the plurality of shot points, the first coordinates of the plurality of demodulator probes and the first coordinates of the calculating points respectively through the correction relation data to obtain second coordinates of the plurality of shot points, the second coordinates of the plurality of demodulator probes and the second coordinates of the calculating points.

In one possible implementation, the fourth determining module 206 includes:

an eighth determining unit, configured to determine, for each shot, that a difference between an abscissa of the shot and an abscissa of the calculation point is a third difference, and that a difference between an ordinate of the shot and an ordinate of the calculation point is a fourth difference;

a fifteenth determining unit, configured to determine a sum of the second channel number difference and the channel number of the calculation point, to obtain a channel number of the demodulation point;

a sixteenth determining unit, configured to determine a quotient between the sixth difference and the line interval to obtain a second line number difference;

and a seventeenth determining unit, configured to determine a sum of the second line number difference and the line number of the calculation point, to obtain the line number of the detection point.

In a possible implementation manner, the offset parameters include a first maximum offset, a second maximum offset, a third maximum offset, and a minimum offset, and the fifth determining module 207 includes:

an eighteenth determining unit, configured to determine a maximum track number difference among track number differences between shot points and geophone points in a plurality of shot-geophone pairs in each common-midpoint direction, and obtain a maximum shot-geophone distance in the common-midpoint direction based on a product of the maximum track number difference and a track pitch, where each shot-geophone pair includes one shot point and one geophone point;

a nineteenth determining unit, configured to obtain a first maximum offset from the maximum offsets in the direction of the multiple common center points, where the first maximum offset is a maximum distance between a shot point in the shot pair and a geophone point in the direction of the common center point;

a twentieth determining unit, configured to determine a maximum line number difference among line number differences between shot points and geophone points in the plurality of shot-geophone pairs in each common-center point line direction, and obtain a maximum offset in the common-center point line direction based on a product of the maximum line number difference and a line spacing;

a twenty-first determining unit, configured to obtain a second maximum offset from the maximum offsets in the direction of the multiple concentric point lines, where the second maximum offset is a maximum distance between a shot point and a geophone point in a shot-geophone pair in the direction of the concentric point lines;

a twenty-second determining unit, configured to determine, for a shot point and a geophone point in each shot-geophone pair, a distance between the shot point and the geophone point based on a line number and a track number of the shot point, a line number and a track number of the geophone point, and a line spacing and a track spacing;

and a twenty-third determining unit, configured to obtain a maximum distance and a minimum distance between the shot point and the demodulator probe in the shot-geophone pair from the distances between the shot point and the demodulator probe in the multiple shot-geophone pairs, and respectively use the maximum distance and the minimum distance as a third maximum shot-geophone distance and a minimum shot-geophone distance, where the third maximum shot-geophone distance and the minimum shot-geophone distance are respectively a maximum distance and a minimum distance between the shot point and the demodulator probe in the shot-geophone pair on the ground data grid.

the first determining subunit is used for determining that the difference value between the line number of the shot point and the line number of the demodulator probe is a seventh difference value, and determining that the difference value between the track number of the shot point and the track number of the demodulator probe is an eighth difference value;

the second determining subunit is used for determining the product of the seventh difference and the line spacing to obtain the distance between the shot point and the demodulator probe in the direction of the common-center point line;

the third determining subunit is configured to determine a product of the eighth difference and the track pitch to obtain a distance between the shot point and the demodulator probe in the direction of the common center point;

and the fourth determining subunit is used for determining the distance between the shot point and the demodulator probe based on the distance between the shot point and the demodulator probe in the direction of the common-center point line and the distance in the direction of the common-center point.

In one possible implementation, the offset parameters include a first maximum offset, a second maximum offset, a third maximum offset, and a minimum offset, and the sixth determining module 208 includes:

a twenty-fifth determining unit, configured to determine an average value of the first surface elevations of the multiple common center points and the second surface elevations of the multiple shot points, to obtain a corrected surface elevation of the ground data grid;

and the composition unit is used for composing the ground grid parameters of the target area comprising a plurality of the first maximum offset, the second maximum offset, the third maximum offset, the minimum offset, the corrected surface elevation, the maximum line number, the minimum line number, the maximum track number and the minimum track number.

Fig. 3 shows a block diagram of a computer device 300 provided in an exemplary embodiment of the present application. The computer device 300 may be a portable mobile computer device such as: a smart phone, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III, motion video Experts compression standard Audio Layer 3), an MP4 player (Moving Picture Experts Group Audio Layer IV, motion video Experts compression standard Audio Layer 4), a notebook computer, or a desktop computer. Computer device 300 may also be referred to by other names such as user device, portable computer device, laptop computer device, desktop computer device, and the like.

Generally, the computer device 300 includes: a processor 301 and a memory 302.

The processor 301 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so on. The processor 301 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 301 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 301 may be integrated with a GPU (Graphics Processing Unit) that is responsible for rendering and drawing content that the display screen needs to display. In some embodiments, the processor 301 may further include an AI (Artificial Intelligence) processor for processing computing operations related to machine learning.

Memory 302 may include one or more computer-readable storage media, which may be non-transitory. Memory 302 may also include high speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 302 is used to store at least one instruction for execution by processor 301 to implement the method of determining ground grid parameters provided by the method embodiments herein.

In some embodiments, the computer device 300 may further optionally include: a peripheral interface 303 and at least one peripheral. The processor 301, memory 302 and peripheral interface 303 may be connected by a bus or signal lines. Each peripheral may be connected to the peripheral interface 303 by a bus, signal line, or circuit board. Specifically, the peripheral device includes: at least one of radio frequency circuitry 304, display screen 305, camera assembly 306, audio circuitry 307, positioning assembly 308, and power supply 309.

The peripheral interface 303 may be used to connect at least one peripheral related to I/O (Input/Output) to the processor 301 and the memory 302. In some embodiments, processor 301, memory 302, and peripheral interface 303 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 301, the memory 302 and the peripheral interface 303 may be implemented on a separate chip or circuit board, which is not limited by the embodiment.

The Radio Frequency circuit 304 is used for receiving and transmitting RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuitry 304 communicates with communication networks and other communication devices via electromagnetic signals. The rf circuit 304 converts the electrical signal into an electromagnetic signal for transmission, or converts the received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 304 comprises: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and so forth. Radio frequency circuitry 304 may communicate with other computer devices via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: the world wide web, metropolitan area networks, intranets, generations of mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the rf circuit 304 may further include NFC (Near Field Communication) related circuits, which are not limited in this application.

The display screen 305 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display screen 305 is a touch display screen, the display screen 305 also has the ability to capture touch signals on or over the surface of the display screen 305. The touch signal may be input to the processor 301 as a control signal for processing. At this point, the display screen 305 may also be used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, the display screen 305 may be one, disposed on the front panel of the computer device 300; in other embodiments, the display screens 305 may be at least two, each disposed on a different surface of the computer device 300 or in a folded design; in other embodiments, the display screen 305 may be a flexible display screen disposed on a curved surface or a folded surface of the computer device 300. Even further, the display screen 305 may be arranged in a non-rectangular irregular figure, i.e. a shaped screen. The Display screen 305 may be made of LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), and the like.

The camera assembly 306 is used to capture images or video. Optionally, camera assembly 306 includes a front camera and a rear camera. Generally, a front camera is disposed on a front panel of a computer apparatus, and a rear camera is disposed on a rear surface of the computer apparatus. In some embodiments, the number of the rear cameras is at least two, and each rear camera is any one of a main camera, a depth-of-field camera, a wide-angle camera and a telephoto camera, so that the main camera and the depth-of-field camera are fused to realize a background blurring function, and the main camera and the wide-angle camera are fused to realize panoramic shooting and VR (Virtual Reality) shooting functions or other fusion shooting functions. In some embodiments, camera assembly 306 may also include a flash. The flash lamp can be a monochrome temperature flash lamp or a bicolor temperature flash lamp. The double-color-temperature flash lamp is a combination of a warm-light flash lamp and a cold-light flash lamp and can be used for light compensation under different color temperatures.

Audio circuitry 307 may include a microphone and a speaker. The microphone is used for collecting sound waves of a user and the environment, converting the sound waves into electric signals, and inputting the electric signals into the processor 301 for processing or inputting the electric signals into the radio frequency circuit 304 to realize voice communication. For stereo capture or noise reduction purposes, the microphones may be multiple and located at different locations on the computer device 300. The microphone may also be an array microphone or an omni-directional acquisition microphone. The speaker is used to convert electrical signals from the processor 301 or the radio frequency circuitry 304 into sound waves. The loudspeaker can be a traditional film loudspeaker or a piezoelectric ceramic loudspeaker. When the speaker is a piezoelectric ceramic speaker, the speaker can be used for purposes such as converting an electric signal into a sound wave audible to a human being, or converting an electric signal into a sound wave inaudible to a human being to measure a distance. In some embodiments, audio circuitry 307 may also include a headphone jack.

The Location component 308 is used to locate the current geographic Location of the computer device 300 to implement navigation or LBS (Location Based Service). The Positioning component 308 may be a Positioning component based on the Global Positioning System (GPS) in the united states, the beidou System in china, or the galileo System in russia.

The power supply 309 is used to supply power to the various components in the computer device 300. The power source 309 may be alternating current, direct current, disposable batteries, or rechargeable batteries. When the power source 309 includes a rechargeable battery, the rechargeable battery may be a wired rechargeable battery or a wireless rechargeable battery. The wired rechargeable battery is a battery charged through a wired line, and the wireless rechargeable battery is a battery charged through a wireless coil. The rechargeable battery may also be used to support fast charge technology.

In some embodiments, the computer device 300 also includes one or more sensors 310. The one or more sensors 310 include, but are not limited to: acceleration sensor 311, gyro sensor 312, pressure sensor 313, fingerprint sensor 314, optical sensor 315, and proximity sensor 316.

The acceleration sensor 311 may detect the magnitude of acceleration in three coordinate axes of a coordinate system established with the computer apparatus 300. For example, the acceleration sensor 311 may be used to detect components of the gravitational acceleration in three coordinate axes. The processor 301 may control the display screen 305 to display the user interface in a landscape view or a portrait view according to the gravitational acceleration signal collected by the acceleration sensor 311. The acceleration sensor 311 may also be used for acquisition of motion data of a game or a user.

The gyro sensor 312 may detect a body direction and a rotation angle of the computer device 300, and the gyro sensor 312 may cooperate with the acceleration sensor 311 to acquire a 3D motion of the user on the computer device 300. The processor 301 may implement the following functions according to the data collected by the gyro sensor 312: motion sensing (such as changing the UI according to a user's tilting operation), image stabilization at the time of photographing, game control, and inertial navigation.

The pressure sensor 313 may be disposed on a side bezel of the computer device 300 and/or underneath the display screen 305. When the pressure sensor 313 is arranged on the side frame of the computer device 300, the holding signal of the user to the computer device 300 can be detected, and the processor 301 can perform left-right hand identification or shortcut operation according to the holding signal collected by the pressure sensor 313. When the pressure sensor 313 is disposed at the lower layer of the display screen 305, the processor 301 controls the operability control on the UI interface according to the pressure operation of the user on the display screen 305. The operability control comprises at least one of a button control, a scroll bar control, an icon control and a menu control.

The fingerprint sensor 314 is used for collecting a fingerprint of the user, and the processor 301 identifies the identity of the user according to the fingerprint collected by the fingerprint sensor 314, or the fingerprint sensor 314 identifies the identity of the user according to the collected fingerprint. Upon identifying that the user's identity is a trusted identity, processor 301 authorizes the user to perform relevant sensitive operations including unlocking the screen, viewing encrypted information, downloading software, paying, and changing settings, etc. The fingerprint sensor 314 may be disposed on the front, back, or side of the computer device 300. When a physical key or vendor Logo is provided on the computer device 300, the fingerprint sensor 314 may be integrated with the physical key or vendor Logo.

The optical sensor 315 is used to collect the ambient light intensity. In one embodiment, the processor 301 may control the display brightness of the display screen 305 based on the ambient light intensity collected by the optical sensor 315. Specifically, when the ambient light intensity is high, the display brightness of the display screen 305 is increased; when the ambient light intensity is low, the display brightness of the display screen 305 is adjusted down. In another embodiment, the processor 301 may also dynamically adjust the shooting parameters of the camera head assembly 306 according to the ambient light intensity collected by the optical sensor 315.

The proximity sensor 316, also known as a distance sensor, is typically disposed on the front panel of the computer device 300. The proximity sensor 316 is used to capture the distance between the user and the front of the computer device 300. In one embodiment, the processor 301 controls the display screen 305 to switch from the bright screen state to the dark screen state when the proximity sensor 316 detects that the distance between the user and the front face of the computer device 300 is gradually decreased; when the proximity sensor 316 detects that the distance between the user and the front of the computer device 300 is gradually increasing, the display screen 305 is controlled by the processor 301 to switch from a breath-screen state to a bright-screen state.

Those skilled in the art will appreciate that the configuration shown in FIG. 3 does not constitute a limitation of the computer device 300, and may include more or fewer components than those shown, or combine certain components, or employ a different arrangement of components.

The embodiment of the present application further provides a computer-readable storage medium, where at least one instruction is stored in the computer-readable storage medium, and the at least one instruction is loaded and executed by a processor to implement the operations performed by the method for determining a ground grid parameter in any implementation manner.

Embodiments of the present application also provide a computer program product or a computer program comprising computer program code, the computer program code being stored in a computer readable storage medium. A processor of the computer device reads the computer program code from the computer-readable storage medium, and the processor executes the computer program code to cause the computer device to perform the operations performed by the above-described method for determining a ground grid parameter.

In some embodiments, the computer program according to the embodiments of the present application may be deployed to be executed on one computer device or on multiple computer devices located at one site, or may be executed on multiple computer devices distributed at multiple sites and interconnected by a communication network, and the multiple computer devices distributed at the multiple sites and interconnected by the communication network may constitute a block chain system.

The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method of determining ground grid parameters, the method comprising:

determining a correction parameter of the coordinate based on the coordinate of a first common center point and the coordinate of a second common center point on each main measuring line, wherein the first common center point and the second common center point are common center points corresponding to a maximum track number and a minimum track number respectively;

determining, based on the vertical seismic profile data, first coordinates of a plurality of shots of the target area, first coordinates of a plurality of geophones of the target area, and second surface elevations of the plurality of shots;

respectively correcting the first coordinates of the plurality of shot points, the first coordinates of the plurality of demodulator probes and the first coordinates of the calculation points of the target area through the correction parameters to obtain second coordinates of the plurality of shot points, the second coordinates of the plurality of demodulator probes and the second coordinates of the calculation points;

determining line numbers and track numbers of the plurality of shots and the plurality of geophones based on the second coordinates of the plurality of shots, the second coordinates of the plurality of geophones, and the second coordinates of the computation points, the line numbers and track numbers of the computation points, and the line spacings and the track spacings;

determining a shot-geophone distance parameter based on the line number and the track number of the plurality of shot points and the plurality of demodulator probes, and the line spacing and the track spacing;

2. The method according to claim 1, wherein the calibration parameters include a target sine value and a target cosine value, and the determining the calibration parameters of coordinates based on the coordinates of the first common center point and the coordinates of the second common center point on each of the principal lines comprises:

determining a distance between the first common center point and the second common center point based on the first difference and the second difference;

determining the quotient of the first difference value and the distance to obtain a sine value of an included angle between the main measurement line and an abscissa, wherein the abscissa is an abscissa of the ground data grid;

determining the quotient of the second difference value and the distance to obtain a cosine value of an included angle between the main measurement line and the abscissa;

3. The method of determining ground grid parameters of claim 1, wherein said correction parameters comprise a target sine value and a target cosine value;

4. The method of determining ground grid parameters of claim 1, wherein said determining line and track numbers of said plurality of shots and said plurality of detector points based on said second coordinates of said plurality of shots, said second coordinates of said plurality of detector points and said second coordinates of said computation points, said line and track numbers of said computation points, and said line and track spacings comprises:

5. The method of determining ground grid parameters of claim 1, wherein said offset parameters comprise a first maximum offset, a second maximum offset, a third maximum offset, and a minimum offset, and wherein said determining offset parameters based on line and track numbers of said plurality of shots and said plurality of geophones, and said line and track spacings comprises:

6. The method of determining ground grid parameters of claim 5, wherein said determining, for each shot and demodulator probe in a shot pair, the distance of said shot from said demodulator probe based on the line and trace number of said shot, the line and trace number of said demodulator probe, and the line and trace spacing comprises:

and determining the distance between the shot point and the wave detection point based on the distance between the shot point and the wave detection point in the direction of the common-center point line and the distance between the shot point and the wave detection point in the direction of the common-center point.

7. The method of determining the ground grid parameters of claim 1, wherein the offset parameters comprise a first maximum offset, a second maximum offset, a third maximum offset, and a minimum offset, and wherein determining the ground grid parameters for the target region based on the offset parameters, the first grid information, and the second surface elevation comprises:

determining an average value of the first surface elevations of the plurality of common center points and the second surface elevations of the plurality of shot points to obtain a corrected surface elevation of the ground data grid;

the composition comprises a plurality of the first maximum offset, the second maximum offset, the third maximum offset, the minimum offset, the corrected surface elevation, the maximum line number, the minimum line number, the maximum track number and the minimum track number ground grid parameters of the target area.

8. An apparatus for determining ground grid parameters, the apparatus comprising:

9. A computer device, comprising one or more processors and one or more memories having stored therein at least one instruction, the at least one instruction being loaded and executed by the one or more processors to perform operations performed by the method of determining ground grid parameters of any of claims 1 to 7.

10. A computer-readable storage medium, having stored therein at least one instruction, which is loaded and executed by a processor, to perform operations performed by a method for determining parameters of a ground grid as claimed in any one of claims 1 to 7.