CN117950046A - Method for checking and monitoring positions of offset points, observation system, electronic equipment and medium - Google Patents
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Abstract
The invention provides a method for checking and monitoring the position of a point of attachment, an observation system, electronic equipment and a medium, wherein the method comprises the following steps: acquiring a design SPS file, an actual SPS file, GPS positions of various offset points and time data; selecting a data range based on the design SPS file, the actual SPS file and GPS position data of each offset point, and calculating a change result of attribute data along with a line number and/or a pile number; and displaying the change result obtained by calculation, and observing the change trend between the space position data or the correlation between the change of the space position data and the pile number change, thereby realizing the detection and monitoring of the position of the shot points in the seismic acquisition. According to the invention, a visual mode is adopted to draw a working area map and a theoretical position of a physical point in a software interface, and the deviation or inaccuracy on the position of a detection point and the mismatch information of the pile number and the position of a shot point are inspected and monitored on a construction site of the outdoor seismic acquisition of the node by comparing the design position and the actual position of the physical point of the working area.
Description
Technical Field
The invention belongs to the field of oil gas and coalbed methane seismic exploration and development, and relates to a method for checking and monitoring the position of an offset point in land node seismic acquisition, a seismic acquisition observation system, electronic equipment and a storage medium.
Background
Seismic exploration is one of the most dominant method technologies for oil and gas resource exploration at present. The geophysical exploration method utilizes the difference of elasticity and density of underground medium to infer the property and morphology of underground rock stratum by observing and analyzing the propagation rule of earthquake waves generated by artificial earthquake in the underground.
In actual production, the seismic exploration includes three links: acquisition, processing and interpretation. The first link is also the most important link in field collection work. The task of this link is to arrange the survey line (receiving point or detecting point) in the desired detection area of the oil gas initially determined in the geological work and other geophysical prospecting works, manually excite (at the shot point or excitation point) the seismic wave, and record the condition of the seismic wave propagation by using a field seismometer. The result of this stage is a digital "tape" recording the ground vibration conditions, i.e., the raw seismic data.
While during acquisition, the exact location of the offset is critical to subsequent processing and interpretation.
In land seismic surveys, the shot point locations often deviate from the design locations due to surface condition limitations, such as when obstacles are encountered in the field acquisition of the seismic survey. In addition, factors such as personnel negligence can also lead to inaccurate positioning of the offset point.
If the positions of the offset points are not right or are disordered, the spatial relationship among the acquired seismic data is disordered, so that subsequent processing is seriously influenced, even an incorrect imaging result is generated, and the geological structure condition of the target area is wrongly judged. Thus, the vision system is checked prior to the actual process to ensure that the location and interrelationship of the offset points are correct.
Linear motion correction and first arrival time fitting are common methods for checking offset of the position of the offset point at present. These methods are used for acquired seismic data. Under the condition of the traditional cable, the seismic data can be transmitted in real time, a worker can timely spot check the original seismic data record acquired every day, and then the position of the shot point can be checked to be correct by matching with the first arrival pick-up result or the linear dynamic correction.
On one hand, the processing mode is to perform post-positioning processing on physical point location data, so that on-site errors cannot be rapidly and timely and effectively judged, and timely giving and correcting on a construction site are difficult.
On the other hand, although the cabled seismograph is a seismic prospecting instrument widely applied at home and abroad at present, a large number of cables make the cable difficult to lay in the field, and the requirements of deep resource exploration in high-density, large-channel number, three-dimensional structure and complex terrain environments are difficult to meet. Therefore, cabled seismic acquisition is being replaced by node acquisition.
The node acquisition technology is that each individual node acquisition station completes the steps of seismic signal pickup, analog-to-digital conversion, data storage, centralized downloading of recorded data and the like, continuous acquisition is carried out according to accurate time sequence, and finally the generated original seismic data is stored on the node acquisition station.
Each node system is provided with an independent GPS device, can continuously collect data in a complex area under the support of an internal power supply, and can autonomously record the collected data, so that the defect of a traditional wired instrument is effectively overcome.
However, in the node acquisition mode, the stability of data transmission based on the wireless communication technology is difficult to be effectively ensured, and the communication distance is limited, so that the method is only suitable for seismic exploration in a small range. In the currently adopted node acquisition technology, mass real-time seismic data transmission is a luxury, and the realization cost is very high.
Therefore, when the node seismograph works, the collected seismic data are stored, and after the operation is finished, the collected seismic data are recovered uniformly. The self-storage working mode can better meet the current deep resource exploration requirements of high density and large track distance, but the quality of the seismic acquisition data is difficult to guarantee due to the lack of an effective on-site quality real-time monitoring means.
Disclosure of Invention
The invention provides a method for checking and monitoring the position of a shot point in land node seismic acquisition, which introduces GPS and 5G communication technology into a node seismic data acquisition system to realize full coverage and real-time monitoring of the shot point and a detector in arrangement so as to ensure the field working quality of the shot point in the node acquisition.
In order to achieve the above object, the present invention provides a method for detecting and monitoring the position of a shot point in a land node seismic acquisition, comprising:
Acquiring a design SPS file, an actual SPS file, GPS positions of various offset points and time data;
Selecting a data range based on the design SPS file, the actual SPS file and GPS position data of each offset point, and calculating a change result of attribute data along with a line number and/or a pile number;
And displaying the change result obtained by calculation, and observing the change trend between the space position data or the correlation between the change of the space position data and the pile number change, thereby realizing the detection and monitoring of the position of the shot points in the seismic acquisition.
Further, according to the design SPS file, the actual SPS file and GPS position data of each offset point, the offset point positions and the line numbers are displayed in the form of a map, a data range is selected on the generated map, and the change result of the attribute parameters along with the line numbers and/or pile numbers is calculated.
Further, according to a certain time interval, acquiring a seismic source production file and a data wave detection point file through a 5G network;
The source production file contains source data for all shots: shot point excitation time, a GPS position of a shot point, a shot line number, a shot point pile number, a shot point ID and a seismic source type which are time-shared by a GPS;
The data detector file contains data of all detectors: GPS position information, wire measuring number, wave detecting point pile number and node state information.
Further, in the selected data range, a coordinate system is established, the detection points and/or the shot points are respectively drawn in the coordinate system, and offset or inaccuracy on the positions of the detection points and mismatch information of the pile numbers and the positions of the detection points are checked and monitored in the coordinate system.
Further, pile numbers and positions of shot points on the shot lines are respectively extracted, the pile numbers are used as horizontal coordinates, the shot line extension distance is used as vertical coordinates, and the coordinate system is established.
Further, the calculation of the change result of the attribute data along with the line number and/or the pile number comprises the steps of extracting the position of the offset point and the pile number data in the full work area, calculating the position offset, and displaying the result in a matrix form.
Further, a threshold is set, and when the offset data exceeds the threshold, an alarm message is sent.
The invention also provides an earthquake acquisition observation system, which comprises:
the file reading module is used for reading the design SPS file, the actual SPS file and GPS position and time data of each offset point;
The attribute data calculation module is used for selecting a data range and calculating the change results of the attribute parameters of the cannon line distance, the cannon point distance, the receiving line distance and the receiving point distance along with the line number and/or the pile number;
And the attribute data display module is used for displaying the attribute data and the calculated change result, and checking and monitoring the change trend between the space position data or the correlation between the change of the space position data and the change of the line number and/or the pile number.
The invention also provides an electronic device comprising:
a memory storing executable instructions;
And the processor runs the executable instructions in the memory to realize the method for checking and monitoring the position of the offset point in the land node seismic acquisition.
The invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which when executed by a processor implements the method of shot point location inspection and monitoring in land node seismic acquisition.
The invention provides a method for checking and monitoring the position of an offset point in land node seismic acquisition, which utilizes a GPS positioning and 5G communication system of a designed SPS file, an actual SPS file and the offset point, converts GPS coordinates into local geodetic coordinates through coordinate conversion, draws a work area map and a physical point theoretical position in a software interface in a visual mode, extracts actual parameters of each physical point in serial port data of the offset point, compares the designed position and the actual position (including attribute parameter calculation and comparison) of the physical point of the work area, and further realizes the checking and monitoring of offset or inaccuracy on the position of the offset point and mismatching information of the pile number and the position of the offset point in a construction site of node field seismic acquisition, thereby providing a guarantee for the seismic acquisition quality of the field node.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular descriptions of exemplary embodiments of the invention as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the invention.
Fig. 1 is a block schematic diagram of a seismic acquisition observation system according to an embodiment of the invention.
FIG. 2 is a flow chart of a method for shot point location inspection and monitoring in land node seismic acquisition according to an embodiment of the invention.
Fig. 3 is a schematic diagram of an observation system and a map overlay display according to an embodiment of the invention.
FIG. 4 is a schematic diagram of a layout of an observation system according to an embodiment of the present invention.
FIG. 5 is a diagram of a global observation system and a local selection zoom-in display in accordance with an embodiment of the present invention.
Fig. 6 is a pile number and offset correlation analysis according to an embodiment of the present invention.
FIG. 7 is a schematic diagram of global offset locations according to an embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention provides a method for checking and monitoring the position of an offset point in land node seismic acquisition, which comprises the steps of converting GPS coordinates into local geodetic coordinates through coordinate conversion according to seismic geographic information (SPS), a GPS positioning and 5G communication system of the offset point, drawing a work area map and a physical point theoretical position in a software interface in a visual mode, extracting actual parameters of each physical point in serial data of the offset point, and comparing the design position and the actual position (comprising calculation and comparison of attribute parameters) of the physical point of the work area, thereby monitoring the physical point of a seismic exploration construction area in real time.
The invention is further described below with reference to the drawings and specific examples, which are not intended to be limiting. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
Example 1
As shown in fig. 1, the present embodiment provides a seismic acquisition observation system 1, the seismic acquisition observation system 1 being deployed on a server 14, including:
A file reading module 11 for reading the design SPS file, the actual SPS file and GPS position and time data of each offset point;
The attribute data calculation module 12 is used for selecting a data range, and calculating the variation results of the shot line distance, the shot point distance, the receiving line distance and the receiving point distance attribute parameters along with the line number and/or the pile number;
And the attribute data display module 13 is used for displaying the attribute data and the calculated change result, and checking and monitoring the change trend between the space position data or the correlation between the change of the space position data and the change of the line number and/or the pile number.
Specifically, the file reading module 11 of the seismic acquisition and observation system 1 reads the designed SPS file, the actual SPS file, and the GPS position and time data of each physical point, and can display the position of the offset point and the line number in the form of a map from the three types of data files.
The attribute data calculation module 12 of the seismic acquisition observation system 1 calculates the change results of attribute parameters such as the cannon line distance, the cannon point distance, the receiving line distance, the receiving point distance and the like along with the line number or the pile number according to three types of data files or by selecting data ranges on a map respectively.
The attribute data display module 14 of the seismic acquisition and observation system 1 timely displays the attribute data of the seismic acquisition and observation system obtained by the calculation in the last step to observe the change trend between the spatial position data or the correlation between the change of the spatial position data and the pile number change, thereby realizing the inspection and monitoring of the seismic field acquisition physical points.
Example two
As shown in fig. 2, the embodiment provides a method for checking and monitoring the positions of offset points in land node seismic acquisition, which includes:
Acquiring a design SPS file, an actual SPS file, GPS positions of various offset points and time data;
Selecting a data range based on the design SPS file, the actual SPS file and GPS position data of each offset point, and calculating a change result of attribute data along with a line number and/or a pile number;
And displaying the change result obtained by calculation, and observing the change trend between the space position data or the correlation between the change of the space position data and the pile number change, thereby realizing the detection and monitoring of the position of the shot points in the seismic acquisition.
The method comprises the steps of designing SPS files into designed observation system files before the seismic field collection, acquiring GPS position data into GPS positions of all physical points in the seismic field, and realizing the physical point inspection and monitoring of the seismic field collection by using 5G communication transmission data, wherein the actual SPS files are actually laid observation system files during the seismic field collection.
The acquisition of the related file is specifically described next. The line number and the stake number of the node collection station can be input by an operator through the handheld terminal and the node collection station is activated or set to a working mode. When the GPS receiver in the node acquisition station is started, the synchronous signal of the GPS satellite is started to be received, and the GPS position information, the wire measuring number and the wave detecting point pile number of the node acquisition station are stored in the SD card, and the data and the node state information, such as storage space, battery power and the like, are stored in the SD card. The data wave detection point files are transmitted to the cloud server 14 through a 5G network according to a certain time interval, and then obtained by the file reading module 11 of the seismic acquisition observation system 1.
After each shot is fired, its source production file is transmitted over a 5G network to cloud data server 14. According to a certain time interval, acquiring a seismic source production file through a 5G network; the source production file contains source data of all shots: the shot point excitation time of GPS timing, the GPS position of the shot point, the shot line number, the shot point pile number and the shot point ID; source type, etc.
The file reading module 11 of the seismic acquisition observation system 1 also obtains a designed observation system file (designed SPS file) before the seismic field acquisition and an observation system file (actual SPS file) actually laid during the seismic field acquisition. These two types of data files are typically not transmitted over a network, but are obtained by other file transfer means. The designed SPS file contains the positions, line numbers and pile numbers of the offset points in an ideal state, and the actual SPS file contains the positions, line numbers and pile numbers of the offset points adopted when the actual SPS file is actually laid according to the designed SPS.
The offset location and the line number may be displayed in the form of a map. The three types of file data can be displayed respectively in a display mode similar to that of conventional observation system design software. For example, as shown in fig. 3, the map is based on a GIS or DEM map display with a display of offset points superimposed thereon. The offset point may also be displayed directly without any background, such as that shown in fig. 4. By the mode, the three types of file data are directly displayed, and the design position and the actual position of the physical point of the work area can be compared.
Conventional attribute analysis of the seismic acquisition observation system 1 may include providing information of shot line spacing, reception line spacing, shot spacing, trace spacing, etc. of the seismic acquisition observation system; and the distribution of offset and coverage times is displayed in the form of a bar graph. However, this is often the design SPS that is ultimately generated during the design phase of the observation system, and the attributes that it provides are also often statistical attributes of the total work area, which do not directly provide offset or inaccuracy in offset location and offset pile number and location mismatch information. The manner in which the comparison of the three documents is displayed may be used to check for offset in the location of the offset point. However, when the work area is large, and the offset points are densely displayed in one window, it is difficult to check only for offset of the offset point positions in this way. For this purpose, the embodiment adopts a linkage mode, that is, a rectangular range is selected by a mouse in any one of the three windows, and then the position of the offset point in the range is enlarged and displayed in another pop-up window, as shown in fig. 5. This operation is only performed for any one of the three contrast windows, but the three contrast windows can be completed synchronously by means of linkage. When the rectangular range is fixed, the data of the whole work area can be carefully browsed and compared just by moving the mouse like a practical magnifying glass.
The situation that the pile number of the offset point is not matched with the position is difficult to check in the mode. For this reason, the present embodiment further performs some of the attribute parameter analysis calculations while enlarging and displaying the selected data, and displays the results thereof. It is assumed that two shot lines are included in the selected data, pile numbers and positions of shot points on the two shot lines are extracted respectively, then the pile numbers are taken as horizontal coordinates (the coordinate increasing direction is the pile number increasing direction), the shot line extending distance is taken as vertical coordinates, and the shot points on the two shot lines are drawn in the coordinate system respectively, as shown in fig. 6. Then for the same shot line, if the shot spacing is uniform and the pile number is continuously increasing, the shots should be on a straight line. If the shot positions are shifted or the pile numbers are out of order, the shots will not be in a straight line. The detector spot data may be processed in the same manner. The ordinate may be the extending distance in the X direction of the original map coordinates or the extending distance in the Y direction of the original map coordinates. In addition, a certain receiving line in a straight line in a selected range may be used as an abscissa, instead of the pile number. Thus, offset or inaccuracy in the location of the offset point and mismatch between the offset point and the location can be clearly observed.
In addition, in order to quickly extract offset or inaccuracy in global overview shot point positions and shot point pile number and position mismatch information, some analysis and calculation may be performed on shot point positions and pile number information in the full work area, and the results may be displayed in a matrix form. The gun lines can be used as the abscissa or the rows of the matrix (the coordinate increasing direction is the line number increasing direction), the gun point pile numbers can be used as the ordinate (the coordinate increasing direction is the pile number increasing direction) or the columns of the matrix, and then the adjacent gun distances on the same gun line can be used as matrix elements, and the matrix elements are represented by colors, so that a graph is drawn, as shown in fig. 7.
The detector point data can be processed in the same way, and the attribute of the characterization is not only the adjacent gun distance on the same gun line or the adjacent channel distance on the same receiving line, but also the point distance of the same gun line or the same receiving line in the X direction of the original map coordinate or the point distance of the same receiving line in the Y direction of the original map coordinate.
In addition to the above display of information, manual inspection by a worker may be performed, since the shot spacing or the track spacing is substantially fixed in the same work area, a threshold may be set on the basis of the above method, for example, when the detected shot spacing is greater than or less than half of the designed shot spacing, the shot is highlighted or blinked to display the shot point, thereby performing an automatic alarm.
Based on map display, the map browsing, map measurement, data query, geometric calculation and space analysis are integrated by using the designed SPS file, the GPS and the actual SPS file respectively, offset or inaccuracy on the detection point position and offset point pile number and position mismatch information are checked and monitored on the construction site of the field node seismic acquisition, and guarantee is provided for the field node seismic acquisition quality.
Example III
The present embodiment provides an electronic device, including:
a memory storing executable instructions;
A processor executing the executable instructions in the memory to implement the above-provided method for detecting and monitoring the location of a shot point in a land node seismic acquisition, the method comprising: acquiring a design SPS file, an actual SPS file, GPS positions of various offset points and time data; selecting a data range based on the design SPS file, the actual SPS file and GPS position data of each offset point, and calculating a change result of attribute data along with a line number and/or a pile number; and displaying the change result obtained by calculation, and observing the change trend between the space position data or the correlation between the change of the space position data and the pile number change, thereby realizing the detection and monitoring of the position of the shot points in the seismic acquisition.
Example IV
The present embodiment provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the above-provided method for detecting and monitoring a location of a shot point in a land node seismic acquisition, the method comprising: acquiring a design SPS file, an actual SPS file, GPS positions of various offset points and time data; selecting a data range based on the design SPS file, the actual SPS file and GPS position data of each offset point, and calculating a change result of attribute data along with a line number and/or a pile number; and displaying the change result obtained by calculation, and observing the change trend between the space position data or the correlation between the change of the space position data and the pile number change, thereby realizing the detection and monitoring of the position of the shot points in the seismic acquisition.
The computer-readable storage medium described above includes, but is not limited to: optical storage media (e.g., CD-ROM and DVD), magneto-optical storage media (e.g., MO), magnetic storage media (e.g., magnetic tape or removable hard disk), media with built-in rewritable non-volatile memory (e.g., memory card), and media with built-in ROM (e.g., ROM cartridge).
In summary, the invention provides a method for checking and monitoring the position of a shot point in land node seismic acquisition, which utilizes GPS positioning data of a designed SPS file, an actual SPS file and the shot point, then adopts a visual mode to draw a working area map and a physical point theoretical position in a software interface, and realizes checking and monitoring offset or inaccuracy on the position of the shot point and mismatching information of the shot point pile number and the position in a construction site of node field seismic acquisition by comparing the designed position and the actual position (including attribute parameter calculation and comparison) of the physical point of the working area, thereby providing guarantee for field node seismic acquisition quality.
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.
Claims (10)
1. A method for detecting and monitoring the position of a shot point in land node seismic acquisition, comprising the steps of:
Acquiring a design SPS file, an actual SPS file, GPS positions of various offset points and time data;
Selecting a data range based on the design SPS file, the actual SPS file and GPS position data of each offset point, and calculating a change result of attribute data along with a line number and/or a pile number;
And displaying the change result obtained by calculation, and observing the change trend between the space position data or the correlation between the change of the space position data and the pile number change, thereby realizing the detection and monitoring of the position of the shot points in the seismic acquisition.
2. The method for detecting and monitoring the positions of the points in the seismic acquisition of land nodes according to claim 1, wherein the positions of the points and the line numbers are displayed in the form of a map according to the designed SPS file, the actual SPS file and GPS position data of each point, a data range is selected on the generated map, and the change result of attribute parameters along with the line numbers and/or pile numbers is calculated.
3. The method for detecting and monitoring the positions of shot points in the seismic acquisition of land nodes according to claim 1, wherein the source production file and the data detection point file are acquired through a 5G network according to a certain time interval;
The source production file contains source data for all shots: shot point excitation time, a GPS position of a shot point, a shot line number, a shot point pile number, a shot point ID and a seismic source type which are time-shared by a GPS;
The data detector file contains data of all detectors: GPS position information, wire measuring number, wave detecting point pile number and node state information.
4. The method of claim 1, wherein within the selected data range, a coordinate system is established in which the geophones and/or shots are respectively mapped, and offset or inaccuracy in the position of the geophone and the information of mismatch between the geophone pile number and the position are checked and monitored in the coordinate system.
5. The method for detecting and monitoring the positions of shot points in the seismic acquisition of land nodes according to claim 4, wherein the pile numbers and the positions of the shot points on the shot lines are extracted respectively, the pile numbers are used as abscissa, and the shot line extension distance is used as ordinate, and the coordinate system is established.
6. The method for detecting and monitoring the positions of offset points in seismic acquisition of land nodes according to claim 1, wherein calculating the change results of attribute data along with line numbers and/or pile numbers comprises extracting the positions of the offset points and the pile numbers in a full working area, performing position offset calculation, and displaying the results in a matrix form.
7. The method of claim 6, wherein a threshold is set and an alarm message is sent when the offset data exceeds the threshold.
8. A seismic acquisition observation system, comprising:
the file reading module is used for reading the design SPS file, the actual SPS file and GPS position and time data of each offset point;
The attribute data calculation module is used for selecting a data range and calculating the change results of the attribute parameters of the cannon line distance, the cannon point distance, the receiving line distance and the receiving point distance along with the line number and/or the pile number;
And the attribute data display module is used for displaying the attribute data and the calculated change result, and checking and monitoring the change trend between the space position data or the correlation between the change of the space position data and the change of the line number and/or the pile number.
9. An electronic device, the electronic device comprising:
a memory storing executable instructions;
A processor executing the executable instructions in the memory to implement the land node seismic acquisition shot point location inspection and monitoring method of any of claims 1-7.
10. A non-transitory computer readable storage medium having stored thereon a computer program which when executed by a processor implements the method of shot point location inspection and monitoring in land node seismic acquisition as claimed in any one of claims 1 to 7.
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| CN202211318188.5A CN117950046A (en) | 2022-10-26 | 2022-10-26 | Method for checking and monitoring positions of offset points, observation system, electronic equipment and medium |
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| CN202211318188.5A CN117950046A (en) | 2022-10-26 | 2022-10-26 | Method for checking and monitoring positions of offset points, observation system, electronic equipment and medium |
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