CN112764102A - Seismic data acquisition method and device - Google Patents
Seismic data acquisition method and device Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. analysis, for interpretation, for correction
- G01V1/30—Analysis
- G01V1/301—Analysis for determining seismic cross-sections or geostructures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. analysis, for interpretation, for correction
- G01V1/36—Effecting static or dynamic corrections on records, e.g. correcting spread; Correlating seismic signals; Eliminating effects of unwanted energy
- G01V1/37—Effecting static or dynamic corrections on records, e.g. correcting spread; Correlating seismic signals; Eliminating effects of unwanted energy specially adapted for seismic systems using continuous agitation of the ground, e.g. using pulse compression of frequency swept signals for enhancement of received signals
- G01V1/375—Correlating received seismic signals with the emitted source signal
Abstract
The embodiment of the application provides a method and a device for acquiring seismic data, wherein the method comprises the following steps: acquiring position information of each seismic source on a plurality of survey lines; determining the excitation mode of each seismic source according to the position information of each seismic source; controlling the vibration work of each seismic source according to the excitation mode of each seismic source, and simultaneously acquiring vibration signals generated by the vibration work of each seismic source on the plurality of survey lines to obtain two-dimensional survey line data respectively corresponding to the plurality of survey lines; the method and the device can efficiently collect the seismic data of the plurality of two-dimensional survey lines, meet the condition of mutual separation between aliasing data, and obtain clear and accurate two-dimensional survey line data.
Description
Technical Field
The application relates to the field of geological exploration, in particular to a seismic data acquisition method and device.
Background
In the existing two-dimensional seismic acquisition method for the controllable seismic sources, because the two-dimensional survey line consists of a receiving line and a very close parallel shot line, one group of controllable seismic sources is generally used for shot-by-shot excitation along the survey line direction, or two groups of controllable seismic sources are used for alternate excitation operation of odd-even shot points of 1 shot line or 2 shot lines, or a plurality of groups of controllable seismic sources are used for sliding scanning. If the instrument is used for receiving, the data line for placing and arranging is connected to the instrument, and the instrument obtains blasting data in real time; and if the nodes are used for receiving, recovering the blasting data downloaded indoors by the nodes. After the construction is finished, an underground two-dimensional section can be obtained.
The two-dimensional seismic acquisition method for the controllable seismic source has the advantages of large personnel and equipment cost, less acquired seismic data, low operation efficiency and higher exploration cost.
Disclosure of Invention
Aiming at the problems in the prior art, the application provides a seismic data acquisition method and a seismic data acquisition device, which can efficiently acquire seismic data of a plurality of two-dimensional survey lines, and simultaneously meet the condition of mutual separation between aliasing data to obtain clear and accurate two-dimensional survey line data.
In order to solve at least one of the above problems, the present application provides the following technical solutions:
in a first aspect, the present application provides a seismic data acquisition method, including:
acquiring position information of each seismic source on a plurality of survey lines;
determining the excitation mode of each seismic source according to the position information of each seismic source;
and controlling the vibration work of each seismic source according to the excitation mode of each seismic source, and simultaneously acquiring vibration signals generated by the vibration work of each seismic source on the plurality of survey lines to obtain two-dimensional survey line data respectively corresponding to the plurality of survey lines.
Further, the determining the excitation mode of each seismic source according to the position information of each seismic source includes:
and determining the excitation mode corresponding to the seismic source excited later in the two adjacent seismic sources according to the seismic source distance between the two adjacent seismic sources and the corresponding relation between the preset seismic source distance and the excitation mode, wherein the seismic source excited later is positioned on the same or adjacent measuring line as the seismic source excited earlier in the two adjacent seismic sources.
Further, the determining an excitation mode corresponding to a seismic source excited later in the two adjacent seismic sources according to the correspondence between the seismic source distance between the two adjacent seismic sources and the preset seismic source distance and the excitation mode includes:
if the seismic source distance between the two adjacent seismic sources is located in a first seismic source distance interval in the corresponding relation between the preset seismic source distance and the excitation mode, determining that the excitation mode corresponding to the seismic source excited later is sliding scanning, and simultaneously determining that the sliding time of the sliding scanning is preset sliding time;
if the seismic source distance between the two adjacent seismic sources is located in a second seismic source distance interval in the corresponding relation between the preset seismic source distance and the excitation mode, determining that the excitation mode corresponding to the seismic source excited later is sliding scanning, and determining the sliding time length of the sliding scanning according to the corresponding relation between the seismic source distance and the sliding time length in the corresponding relation between the preset seismic source distance and the excitation mode;
and if the seismic source distance between the two adjacent seismic sources is located in a third seismic source distance interval in the corresponding relation between the preset seismic source distance and the excitation mode, determining that the excitation mode corresponding to the seismic source excited later is autonomous excitation.
Further, the simultaneously acquiring the vibration signals generated by the vibration operation of the seismic sources on the plurality of survey lines includes:
respectively arranging at least one cross station on each measuring line, and collecting vibration signals detected by detectors on each measuring line;
and receiving the vibration signals sent by the cross stations through the cross wires connected with the cross stations on the measuring lines.
Further, the acquiring vibration signals generated by vibration operation of the seismic sources on the plurality of survey lines simultaneously to obtain two-dimensional survey line data corresponding to the plurality of survey lines respectively further comprises:
and carrying out aliasing data separation processing on the acquired vibration signals to obtain effective vibration signals and noise vibration signals, and obtaining two-dimensional line measurement data according to the effective vibration signals.
Further, after the obtaining of the two-dimensional line measurement data corresponding to the plurality of lines, the method further includes:
acquiring the position information of the plurality of measuring lines in the target work area;
and performing transverse geological analysis on the target work area according to the position information of the plurality of measuring lines, the position information of each seismic source on each measuring line and the two-dimensional measuring line data respectively corresponding to the plurality of measuring lines to obtain transverse geological feature data of the target work area.
In a second aspect, the present application provides a seismic data collection device, comprising:
the seismic source distance determining module is used for acquiring the position information of each seismic source on a plurality of survey lines;
the excitation mode determining module is used for determining the excitation mode of each seismic source according to the position information of each seismic source;
and the survey line data acquisition module is used for controlling the vibration work of each seismic source according to the excitation mode of each seismic source and simultaneously acquiring vibration signals generated by the vibration work of each seismic source on the plurality of survey lines to obtain two-dimensional survey line data respectively corresponding to the plurality of survey lines.
Further, the excitation pattern determination module includes:
and the excitation mode determining unit is used for determining the excitation mode corresponding to the seismic source excited later in the two adjacent seismic sources according to the seismic source distance between the two adjacent seismic sources and the corresponding relation between the preset seismic source distance and the excitation mode, wherein the seismic source excited later is positioned on the same or adjacent measuring line as the seismic source excited earlier in the two adjacent seismic sources.
Further, the excitation pattern determination unit includes:
a first excitation mode determining subunit, configured to determine that the excitation mode corresponding to the subsequently excited seismic source is sliding scanning and determine that the sliding duration of the sliding scanning is a preset sliding duration at the same time, when the seismic source distance between the two adjacent seismic sources is located in a first seismic source distance interval in the correspondence between the preset seismic source distance and the excitation mode;
a second excitation mode determining subunit, configured to determine that the excitation mode corresponding to the subsequently excited seismic source is sliding scanning when the seismic source distance between the two adjacent seismic sources is located in a second seismic source distance interval in the correspondence between the preset seismic source distance and the excitation mode, and determine the sliding duration of the sliding scanning according to the correspondence between the seismic source distance and the sliding duration in the correspondence between the preset seismic source distance and the excitation mode;
and the third excitation mode determining subunit is configured to determine that the excitation mode corresponding to the subsequently excited seismic source is the autonomous excitation when the seismic source distance between the two adjacent seismic sources is located in a third seismic source distance interval in the correspondence between the preset seismic source distance and the excitation mode.
Further, the survey line data acquisition module comprises:
the line measurement data acquisition unit is used for acquiring vibration signals detected by the detectors on the line measurement lines through at least one cross station arranged on each line measurement line;
and the cross station data acquisition unit is used for receiving the vibration signals sent by the cross stations through the jumper wires of the cross stations connected to the measuring wires.
Further, the survey line data acquisition module further comprises:
and the chaotic data separation unit is used for carrying out aliasing data separation processing on the acquired vibration signals to obtain effective vibration signals and noise vibration signals and obtaining two-dimensional line measurement data according to the effective vibration signals.
Further, still include:
the measuring line position determining unit is used for acquiring the position information of the plurality of measuring lines in the target work area;
and the target work area geological analysis unit is used for carrying out transverse geological analysis on the target work area according to the position information of the measuring lines, the position information of each seismic source on each measuring line and the two-dimensional measuring line data respectively corresponding to the measuring lines to obtain the transverse geological feature data of the target work area.
In a third aspect, the present application provides an electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the seismic data acquisition method when executing the program.
In a fourth aspect, the present application provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the seismic data acquisition method described.
According to the technical scheme, the seismic data acquisition method and device are characterized in that the position information of seismic sources arranged on a plurality of survey lines is obtained firstly to determine the seismic source distance between the seismic sources, the excitation mode of the seismic source excited later is determined according to the seismic source distance between the seismic sources and the seismic source excitation sequence, and the vibration signals generated by the vibration work of the seismic sources on the plurality of survey lines are acquired simultaneously to obtain clear and accurate data of a plurality of two-dimensional survey lines Accurate two-dimensional survey line data improves the acquisition efficiency and the accuracy of the two-dimensional survey line data of the controllable seismic source.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are 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 schematic flow chart of a seismic data acquisition method according to an embodiment of the present application;
FIG. 2 is a second schematic flow chart of a seismic data acquisition method according to an embodiment of the present application;
FIG. 3 is a third schematic flow chart of a seismic data acquisition method according to an embodiment of the present application;
FIG. 4 is a fourth schematic flowchart of a seismic data acquisition method according to an embodiment of the present application;
FIG. 5 is a diagram of one embodiment of a seismic data acquisition device;
FIG. 6 is a second block diagram of the seismic data acquisition device in the embodiment of the present application;
FIG. 7 is a third block diagram of a seismic data acquisition device according to an embodiment of the present invention;
FIG. 8 is a fourth diagram of the structure of the seismic data acquisition device in the embodiment of the present application;
fig. 9 is a schematic structural diagram of an electronic device in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In consideration of the problems of huge personnel and equipment cost, low operation efficiency and higher exploration cost of the conventional vibroseis two-dimensional seismic acquisition method, the application provides a seismic data acquisition method and a seismic data acquisition device, which are characterized in that the method comprises the steps of firstly acquiring the position information of each seismic source arranged on a plurality of survey lines to determine the seismic source distance between the seismic sources, and determining the excitation mode of the seismic source excited later according to the seismic source excitation sequence according to the seismic source distance between the seismic sources, so as to simultaneously acquire the vibration signals generated by the vibration work of the seismic sources on the plurality of survey lines, thereby obtaining clear and accurate data of the plurality of two-dimensional survey lines, wherein the excitation mode of each seismic source depends on the seismic source distance between the seismic sources, namely the distance from the seismic source excited earlier, so that although the vibration signals of the seismic sources on the plurality of survey lines simultaneously acquire aliasing data, but each vibration signal that gathers can satisfy the required separation condition of aliasing data separation, and then this application can obtain clear, accurate two-dimensional survey line data of each survey line, has promoted the collection efficiency and the degree of accuracy of vibroseis two-dimensional survey line data.
In order to efficiently acquire seismic data of a plurality of two-dimensional survey lines and simultaneously meet the condition of mutual separation of aliasing data, the application provides an embodiment of a seismic data acquisition method, and referring to fig. 1, the seismic data acquisition method specifically includes the following contents:
step S101: and acquiring the position information of each seismic source on a plurality of survey lines.
It is understood that, in general, a two-dimensional survey line is composed of a receiving line (on which at least one detector is sequentially disposed) and an adjacent parallel shot line (on which at least one shot point or controllable seismic source is sequentially disposed), and after a field constructor deploys a plurality of two-dimensional survey lines in a target work area according to actual field operation conditions, position information of each seismic source disposed on each survey line may be acquired by a conventional technology (such as a production management system), wherein the seismic source is preferably a controllable seismic source, and the position information may be position coordinates of each seismic source in a preset coordinate system.
Step S102: and determining the excitation mode of each seismic source according to the position information of each seismic source.
It can be understood that the position information of each seismic source includes position coordinates of each seismic source in a preset coordinate system, so that the seismic source distance between two seismic sources can be known, and the two seismic sources may be two seismic sources arranged on the same survey line or two seismic sources arranged on different survey lines respectively.
For example, if the location coordinates of the seismic source a and the seismic source B are (0,10) and (0,30) on the same line, the seismic source distance between the two seismic sources is 20, which may be measured in meters or other pre-defined measurement units.
For another example, on two different lines a and B, the position coordinates of the seismic source a disposed on the line a are (0,10), and the position coordinates of the seismic source B disposed on the line B are (30,10), and it is known that the source distance between the two seismic sources is 20 in the same manner.
It can be understood that the excitation modes at least include two modes, namely sliding scanning and autonomous excitation, wherein the corresponding sliding duration is configured when the excitation mode is sliding scanning, for example, if one excitation mode is "sliding scanning for 7 seconds", it is characterized that the seismic source excited before starts to vibrate 7 seconds later, and then starts to vibrate at the excited seismic source, and if another excitation mode is "sliding scanning for 3 seconds", it is characterized that the seismic source excited before starts to vibrate 3 seconds later, and then starts to vibrate at the excited seismic source; if the excitation mode is 'autonomous excitation', the corresponding sliding time length may not be configured, and the seismic source excited later may perform vibration operation at any time after the seismic source excited earlier starts to vibrate, or may perform vibration operation simultaneously with the seismic source excited online.
It can be understood that the specific excitation mode of the seismic source excited later is determined by the numerical value of the seismic source distance between the two seismic sources, so that after the aliasing data formed after the seismic data of the two seismic sources are simultaneously acquired, the separation condition required by the aliasing data separation in the prior art can be met, and clear and accurate two-seismic data, namely two-dimensional survey line data, can be obtained.
Step S103: and controlling the vibration work of each seismic source according to the excitation mode of each seismic source, and simultaneously acquiring vibration signals generated by the vibration work of each seismic source on the plurality of survey lines to obtain two-dimensional survey line data respectively corresponding to the plurality of survey lines.
Optionally, an existing production management system can be adopted to control each seismic source to perform vibration operation, and meanwhile, a nanosecond time controller can be configured on each seismic source to accurately capture and record a seismic source box body TB (start time) signal for subsequent aliasing data separation processing.
As can be seen from the above description, the seismic data acquisition method provided in the embodiment of the present application can determine the seismic source distance between the seismic sources by first acquiring the position information of the seismic sources arranged on the multiple survey lines, and determine the excitation mode of the seismic source excited later according to the seismic source distance between the seismic sources and the seismic source excitation sequence, so as to simultaneously acquire the vibration signals generated by the vibration operation of the seismic sources on the multiple survey lines, thereby obtaining clear and accurate data of the multiple two-dimensional survey lines Accurate two-dimensional survey line data improves the acquisition efficiency and the accuracy of the two-dimensional survey line data of the controllable seismic source.
In order to accurately control the excitation mode (i.e., the excitation time) of each seismic source, so as to satisfy the condition of mutual separation between the aliased data, in an embodiment of the seismic data acquisition method of the present application, the following may be further included: and determining the excitation mode corresponding to the seismic source excited later in the two adjacent seismic sources according to the corresponding relation between the seismic source distance between the two adjacent seismic sources and the preset seismic source distance and the excitation mode.
Alternatively, the specific excitation pattern of the seismic source in the post-excitation may be determined by the magnitude of the source distance between two adjacent seismic sources in the preset coordinate system, wherein the seismic source in the post-excitation may be on the same or adjacent line as the seismic source in the previous excitation in the two adjacent seismic sources.
Specifically, according to different aliasing data separation processing methods actually adopted in the later stage, specific separation conditions required by the aliasing data separation processing method are determined, and thus the corresponding relation between a seismic source distance and an excitation mode is obtained.
For example, if the source distance of two adjacent seismic sources is less than 2000 meters, it can be known that aliasing data is easily generated by simultaneously acquiring the vibration signals of the two seismic sources, that is, the two corresponding two-dimensional survey line data are relatively similar and difficult to distinguish, so that the corresponding relationship between a source distance and an excitation mode can be set as "the source distance is less than 2000, a sliding scan is adopted, and the sliding time duration is 7 seconds", so that the seismic sources excited first start to vibrate for 7 seconds after the seismic sources excited first start to vibrate, and the aliasing data generated by the two seismic sources can be smoothly separated through the vibration time duration interval of 7 seconds, thereby obtaining two clear two-dimensional survey line data.
For another example, if the seismic source distance between two adjacent seismic sources is greater than 8000 m, it is known that the two corresponding two-dimensional line data are greatly distinguished (there is a large regional difference), and are easily distinguished, so that a correspondence relationship between the seismic source distance and the excitation mode may be set as "the seismic source distance is greater than 8000 m, and autonomous excitation is adopted", so that after the seismic source excited first starts to vibrate, the seismic source excited later can start to vibrate at any time, and the aliasing data generated by the two seismic sources are separated due to the large difference, so that two clear two-dimensional line data can be obtained.
In order to further accurately control the excitation mode (i.e., the excitation time) of each seismic source, in an embodiment of the seismic data acquisition method of the present application, referring to fig. 2, the following may be further included:
step S201: and if the seismic source distance between the two adjacent seismic sources is located in a first seismic source distance interval in the corresponding relation between the preset seismic source distance and the excitation mode, determining that the excitation mode corresponding to the seismic source excited later is sliding scanning, and simultaneously determining that the sliding time of the sliding scanning is preset sliding time.
Optionally, if the seismic source distance between two adjacent seismic sources is less than 2000 meters, it can be known that aliasing data is easily generated by simultaneously acquiring vibration signals of the two seismic sources, that is, the corresponding two-dimensional survey line data are relatively similar and difficult to distinguish, so that a correspondence relationship between the seismic source distance and the excitation mode may be set to "the seismic source distance is less than 2000, a sliding scan is adopted, and the sliding time duration is 7 seconds", so that the seismic source excited first starts to vibrate for 7 seconds after the seismic source excited first starts to vibrate, and the aliasing data generated by the two seismic sources can be smoothly separated through the vibration time duration interval of 7 seconds, thereby obtaining two clear two-dimensional survey line data.
Step S202: and if the seismic source distance between the two adjacent seismic sources is located in a second seismic source distance interval in the corresponding relation between the preset seismic source distance and the excitation mode, determining the excitation mode corresponding to the seismic source excited later as sliding scanning, and determining the sliding time length of the sliding scanning according to the corresponding relation between the seismic source distance and the sliding time length in the corresponding relation between the preset seismic source distance and the excitation mode.
Optionally, if the seismic source distance between two adjacent seismic sources is greater than 2000 m and less than 8000 m, it is known that aliasing data is easily generated when the vibration signals of the two seismic sources are acquired simultaneously, that is, the corresponding two-dimensional survey line data are relatively similar and difficult to distinguish, but if both are set to be excited at an interval of 7 seconds, the whole seismic data acquisition cycle is too long, and the seismic data acquisition efficiency is low, so that the correspondence relationship between a seismic source distance and an excitation mode may be set as "the seismic source distance is greater than 2000 m and less than 8000 m, sliding scanning is adopted, and the sliding duration follows a linear function
(x is the source distance, y is the sliding time length) ", so that after the vibration of the seismic source excited earlier starts, the seismic source excited later starts to vibrate, and the sliding time length is calculated by the linear function, thereby successfully separating the aliasing data generated by the two seismic sources,thus obtaining two clear two-dimensional line measurement data.
Step S203: and if the seismic source distance between the two adjacent seismic sources is located in a third seismic source distance interval in the corresponding relation between the preset seismic source distance and the excitation mode, determining that the excitation mode corresponding to the seismic source excited later is autonomous excitation.
Optionally, if the seismic source distance between two adjacent seismic sources is greater than 8000 m, it is known that the two corresponding two-dimensional line data are relatively large in difference (having a relatively large regional difference) and are easy to distinguish, and therefore, a correspondence relationship between the seismic source distance and the excitation mode may be set to "the seismic source distance is greater than 8000 m, and autonomous excitation is adopted", so that after the seismic source excited first starts to vibrate, the seismic source excited later can start to vibrate at any time, and the aliasing data generated by the two seismic sources are separated due to the relatively large difference, and thus two clear two-dimensional line data can be obtained.
In order to acquire seismic data of a plurality of survey lines simultaneously and improve the seismic data acquisition efficiency, in an embodiment of the seismic data acquisition method of the present application, referring to fig. 3, the method may further include the following steps:
step S301: and respectively arranging at least one cross station on each measuring line to acquire the vibration signals detected by the detectors on each measuring line.
Optionally, each survey line is provided with at least one detector for acquiring a seismic source vibration signal, and at least one cross station may be respectively arranged on each survey line to acquire vibration signals acquired by all detectors on the survey line, that is, the vibration signals of the survey line are collected.
Step S302: and receiving the vibration signals sent by the cross stations through the cross wires connected with the cross stations on the measuring lines.
Alternatively, at least one jumper may be provided to connect the crossover stations on each survey line, so as to collect the vibration signals of each survey line stored in each crossover station, and finally collect the vibration signals to an information processing system, thereby realizing simultaneous collection of data of a plurality of survey lines.
In order to process the seismic data of a plurality of survey lines acquired simultaneously to obtain clear two-dimensional survey line data of each survey line, in an embodiment of the seismic data acquisition method of the application, the method may further include the following steps: and carrying out aliasing data separation processing on the acquired vibration signals to obtain effective vibration signals and noise vibration signals, and obtaining two-dimensional line measurement data according to the effective vibration signals.
Optionally, after the seismic data acquisition work for a plurality of survey lines is completed once, the existing aliasing data separation method can be adopted for separation processing, so that two-dimensional survey line data corresponding to each survey line is obtained respectively.
In order to perform geological analysis of the entire target work area by combining the simultaneously acquired survey line data, in an embodiment of the seismic data acquisition method of the present application, referring to fig. 4, the following may be further included:
step S401: and acquiring the position information of the plurality of measuring lines in the target work area.
Step S402: and performing transverse geological analysis on the target work area according to the position information of the plurality of measuring lines, the position information of each seismic source on each measuring line and the two-dimensional measuring line data respectively corresponding to the plurality of measuring lines to obtain transverse geological feature data of the target work area.
Optionally, as can be seen from the above description, two-dimensional line measurement data corresponding to each line measurement can be obtained separately in the present application, where the obtained position information of the multiple line measurements in the target work area (for example, a line measurement distance between two adjacent line measurements in the target work area) may be combined to perform lateral geological analysis on the target work area, so as to obtain lateral geological feature data of the target work area.
Specifically, the two-dimensional survey line data of each survey line can represent a geological two-dimensional section under the survey line, and the transverse geological feature data of the target work area is obtained by combining the survey line distance between the survey lines, namely combining the position arrangement of each geological two-dimensional section in the longitudinal direction, and the three-dimensional geological feature data of the target work area can be constructed according to the transverse geological feature data.
In order to efficiently collect seismic data of a plurality of two-dimensional survey lines and simultaneously satisfy the condition of mutual separation between aliasing data, the present application provides an embodiment of a seismic data collection device for implementing all or part of the contents of the seismic data collection method, and referring to fig. 5, the seismic data collection device specifically includes the following contents:
and the seismic source distance determining module 10 is used for acquiring the position information of each seismic source on a plurality of survey lines.
And the excitation mode determining module 20 is configured to determine an excitation mode of each seismic source according to the position information of each seismic source.
And the survey line data acquisition module 30 is configured to control the vibration operation of each seismic source according to the excitation mode of each seismic source, and simultaneously acquire a vibration signal generated by the vibration operation of each seismic source on the multiple survey lines, so as to obtain two-dimensional survey line data corresponding to the multiple survey lines respectively.
As can be seen from the above description, the seismic data acquisition device provided in the embodiment of the present application can determine the seismic source distance between the seismic sources by first acquiring the position information of the seismic sources arranged on the multiple survey lines, and determine the excitation mode of the seismic source excited later according to the seismic source distance between the seismic sources and the seismic source excitation sequence, so as to simultaneously acquire the vibration signals generated by the vibration operation of the seismic sources on the multiple survey lines, thereby obtaining clear and accurate data of the multiple two-dimensional survey lines Accurate two-dimensional survey line data improves the acquisition efficiency and the accuracy of the two-dimensional survey line data of the controllable seismic source.
In order to accurately control the excitation modes (i.e., the excitation times) of the seismic sources so as to satisfy the condition of mutual separation between the aliased data, in an embodiment of the seismic data acquisition apparatus of the present application, referring to fig. 6, the excitation mode determination module 20 includes:
the excitation mode determining unit 21 is configured to determine an excitation mode corresponding to a seismic source excited later in the two adjacent seismic sources according to a seismic source distance between the two adjacent seismic sources and a preset correspondence between the seismic source distance and the excitation mode, where the seismic source excited later is located on a same or an adjacent survey line as the seismic source excited earlier in the two adjacent seismic sources.
In order to further accurately control the excitation pattern (i.e., the excitation time) of each seismic source, in an embodiment of the seismic data acquisition apparatus of the present application, referring to fig. 7, the excitation pattern determining unit 21 includes:
the first excitation mode determining subunit 211 is configured to determine that the excitation mode corresponding to the subsequently excited seismic source is sliding scanning and determine that the sliding duration of the sliding scanning is preset sliding duration at the same time, when the seismic source distance between the two adjacent seismic sources is located in the first seismic source distance interval in the correspondence between the preset seismic source distance and the excitation mode.
And a second excitation mode determining subunit 212, configured to determine that the excitation mode corresponding to the subsequently excited seismic source is sliding scanning when the seismic source distance between the two adjacent seismic sources is located in a second seismic source distance interval in the correspondence between the preset seismic source distance and the excitation mode, and determine the sliding duration of the sliding scanning according to the correspondence between the seismic source distance and the sliding duration in the correspondence between the preset seismic source distance and the excitation mode.
And a third excitation mode determining subunit 213, configured to determine that the excitation mode corresponding to the subsequently excited seismic source is the autonomous excitation when the seismic source distance between the two adjacent seismic sources is located in a third seismic source distance interval in the correspondence between the preset seismic source distance and the excitation mode.
In order to simultaneously acquire seismic data of a plurality of survey lines and process the seismic data of the plurality of survey lines acquired simultaneously, so as to improve seismic data acquisition efficiency, in an embodiment of the seismic data acquisition apparatus of the present application, referring to fig. 8, the survey line data acquisition module 30 includes:
and the measuring line data acquisition unit 31 is used for acquiring the vibration signals detected by the detectors on the measuring lines by respectively arranging at least one cross station on each measuring line.
And the cross station data acquisition unit 32 is configured to receive the vibration signal sent by each cross station through a jumper wire connected to the cross station on each measurement line.
And the chaotic data separation unit 33 is configured to perform aliasing data separation processing on the acquired vibration signal to obtain an effective vibration signal and a noise vibration signal, and obtain two-dimensional line measurement data according to the effective vibration signal.
In order to perform geological analysis of the whole target work area by combining a plurality of survey line data acquired simultaneously, in an embodiment of the seismic data acquisition device of the application, the geological analysis further specifically includes the following contents:
and the measuring line position determining unit is used for acquiring the position information of the plurality of measuring lines in the target work area.
And the target work area geological analysis unit is used for carrying out transverse geological analysis on the target work area according to the position information of the measuring lines, the position information of each seismic source on each measuring line and the two-dimensional measuring line data respectively corresponding to the measuring lines to obtain the transverse geological feature data of the target work area.
An embodiment of the present application further provides a specific implementation manner of an electronic device capable of implementing all steps in the seismic data acquisition method in the foregoing embodiment, and referring to fig. 9, the electronic device specifically includes the following contents:
a processor (processor)601, a memory (memory)602, a communication Interface (Communications Interface)603, and a bus 604;
the processor 601, the memory 602 and the communication interface 603 complete mutual communication through the bus 604; the communication interface 603 is used for realizing information transmission among the seismic data acquisition device, the online service system, the client equipment and other participating mechanisms;
the processor 601 is configured to call a computer program in the memory 602, and when the processor executes the computer program, all the steps in the seismic data acquisition method in the above embodiments are implemented, for example, when the processor executes the computer program, the following steps are implemented:
step S101: and acquiring the position information of each seismic source on a plurality of survey lines.
Step S102: and determining the excitation mode of each seismic source according to the position information of each seismic source.
Step S103: and controlling the vibration work of each seismic source according to the excitation mode of each seismic source, and simultaneously acquiring vibration signals generated by the vibration work of each seismic source on the plurality of survey lines to obtain two-dimensional survey line data respectively corresponding to the plurality of survey lines.
As can be seen from the above description, the electronic device provided in the embodiment of the present application can obtain the position information of the seismic sources arranged on the multiple survey lines to determine the seismic source distance between the seismic sources, and determine the excitation mode of the seismic source excited later according to the seismic source distance between the seismic sources and the excitation sequence of the seismic source, so as to simultaneously acquire the vibration signals generated by the vibration operation of the seismic sources on the multiple survey lines, thereby obtaining clear and accurate data of the multiple two-dimensional survey lines Accurate two-dimensional survey line data improves the acquisition efficiency and the accuracy of the two-dimensional survey line data of the controllable seismic source.
Embodiments of the present application further provide a computer-readable storage medium capable of implementing all steps in the seismic data acquisition method in the above embodiments, where the computer-readable storage medium stores thereon a computer program, and when the computer program is executed by a processor, the computer program implements all steps of the seismic data acquisition method in the above embodiments, for example, when the processor executes the computer program, the processor implements the following steps:
step S101: and acquiring the position information of each seismic source on a plurality of survey lines.
Step S102: and determining the excitation mode of each seismic source according to the position information of each seismic source.
Step S103: and controlling the vibration work of each seismic source according to the excitation mode of each seismic source, and simultaneously acquiring vibration signals generated by the vibration work of each seismic source on the plurality of survey lines to obtain two-dimensional survey line data respectively corresponding to the plurality of survey lines.
As can be seen from the above description, the computer-readable storage medium provided in this application can determine the seismic source distance between the seismic sources by first obtaining the location information of the seismic sources arranged on the multiple survey lines, and determine the excitation mode of the seismic source excited later according to the seismic source distance between the seismic sources and the seismic source excitation sequence, so as to simultaneously acquire the vibration signals generated by the vibration operation of the seismic sources on the multiple survey lines, thereby obtaining clear and accurate multiple two-dimensional survey line data Accurate two-dimensional survey line data improves the acquisition efficiency and the accuracy of the two-dimensional survey line data of the controllable seismic source.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the hardware + program class embodiment, since it is substantially similar to the method embodiment, the description is simple, and the relevant points can be referred to the partial description of the method embodiment.
The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
Although the present application provides method steps as described in an embodiment or flowchart, additional or fewer steps may be included based on conventional or non-inventive efforts. The order of steps recited in the embodiments is merely one manner of performing the steps in a multitude of orders and does not represent the only order of execution. When an actual apparatus or client product executes, it may execute sequentially or in parallel (e.g., in the context of parallel processors or multi-threaded processing) according to the embodiments or methods shown in the figures.
The systems, devices, modules or units illustrated in the above embodiments may be implemented by a computer chip or an entity, or by a product with certain functions. One typical implementation device is a computer. In particular, the computer may be, for example, a personal computer, a laptop computer, a vehicle-mounted human-computer interaction device, a cellular telephone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
As will be appreciated by one skilled in the art, embodiments of the present description may be provided as a method, system, or computer program product. Accordingly, embodiments of the present description may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects.
The embodiments of this specification may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The described embodiments may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the specification. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only an example of the present specification, and is not intended to limit the present specification. Various modifications and variations to the embodiments described herein will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present specification should be included in the scope of the claims of the embodiments of the present specification.
Claims (14)
1. A seismic data acquisition method, the method comprising:
acquiring position information of each seismic source on a plurality of survey lines;
determining the excitation mode of each seismic source according to the position information of each seismic source;
and controlling the vibration work of each seismic source according to the excitation mode of each seismic source, and simultaneously acquiring vibration signals generated by the vibration work of each seismic source on the plurality of survey lines to obtain two-dimensional survey line data respectively corresponding to the plurality of survey lines.
2. The method of claim 1, wherein determining the firing patterns of the seismic sources based on the position information of the seismic sources comprises:
and determining the excitation mode corresponding to the seismic source excited later in the two adjacent seismic sources according to the seismic source distance between the two adjacent seismic sources and the corresponding relation between the preset seismic source distance and the excitation mode, wherein the seismic source excited later is positioned on the same or adjacent measuring line as the seismic source excited earlier in the two adjacent seismic sources.
3. The method for acquiring seismic data according to claim 2, wherein the determining the excitation mode corresponding to the seismic source excited later in the two adjacent seismic sources according to the corresponding relationship between the seismic source distance between the two adjacent seismic sources and the preset seismic source distance and the excitation mode comprises:
if the seismic source distance between the two adjacent seismic sources is located in a first seismic source distance interval in the corresponding relation between the preset seismic source distance and the excitation mode, determining that the excitation mode corresponding to the seismic source excited later is sliding scanning, and simultaneously determining that the sliding time of the sliding scanning is preset sliding time;
if the seismic source distance between the two adjacent seismic sources is located in a second seismic source distance interval in the corresponding relation between the preset seismic source distance and the excitation mode, determining that the excitation mode corresponding to the seismic source excited later is sliding scanning, and determining the sliding time length of the sliding scanning according to the corresponding relation between the seismic source distance and the sliding time length in the corresponding relation between the preset seismic source distance and the excitation mode;
and if the seismic source distance between the two adjacent seismic sources is located in a third seismic source distance interval in the corresponding relation between the preset seismic source distance and the excitation mode, determining that the excitation mode corresponding to the seismic source excited later is autonomous excitation.
4. The method of claim 1, wherein said simultaneously acquiring vibratory signals from vibratory operation of each source on said plurality of lines comprises:
respectively arranging at least one cross station on each measuring line, and collecting vibration signals detected by detectors on each measuring line;
and receiving the vibration signals sent by the cross stations through the cross wires connected with the cross stations on the measuring lines.
5. The method of claim 1, wherein the simultaneously acquiring the vibration signals generated by the vibration operations of the seismic sources on the plurality of lines to obtain two-dimensional line data corresponding to the plurality of lines, further comprises:
and carrying out aliasing data separation processing on the acquired vibration signals to obtain effective vibration signals and noise vibration signals, and obtaining two-dimensional line measurement data according to the effective vibration signals.
6. The seismic data collection method of claim 1, further comprising, after said obtaining two-dimensional line data corresponding to each of said plurality of lines:
acquiring the position information of the plurality of measuring lines in the target work area;
and performing transverse geological analysis on the target work area according to the position information of the plurality of measuring lines, the position information of each seismic source on each measuring line and the two-dimensional measuring line data respectively corresponding to the plurality of measuring lines to obtain transverse geological feature data of the target work area.
7. A seismic data collection device, comprising:
the seismic source distance determining module is used for acquiring the position information of each seismic source on a plurality of survey lines;
the excitation mode determining module is used for determining the excitation mode of each seismic source according to the position information of each seismic source;
and the survey line data acquisition module is used for controlling the vibration work of each seismic source according to the excitation mode of each seismic source and simultaneously acquiring vibration signals generated by the vibration work of each seismic source on the plurality of survey lines to obtain two-dimensional survey line data respectively corresponding to the plurality of survey lines.
8. The seismic data collection device of claim 7, wherein the excitation pattern determination module comprises:
and the excitation mode determining unit is used for determining the excitation mode corresponding to the seismic source excited later in the two adjacent seismic sources according to the seismic source distance between the two adjacent seismic sources and the corresponding relation between the preset seismic source distance and the excitation mode, wherein the seismic source excited later is positioned on the same or adjacent measuring line as the seismic source excited earlier in the two adjacent seismic sources.
9. The seismic data acquisition device of claim 8, wherein the excitation pattern determination unit comprises:
a first excitation mode determining subunit, configured to determine that the excitation mode corresponding to the subsequently excited seismic source is sliding scanning and determine that the sliding duration of the sliding scanning is a preset sliding duration at the same time, when the seismic source distance between the two adjacent seismic sources is located in a first seismic source distance interval in the correspondence between the preset seismic source distance and the excitation mode;
a second excitation mode determining subunit, configured to determine that the excitation mode corresponding to the subsequently excited seismic source is sliding scanning when the seismic source distance between the two adjacent seismic sources is located in a second seismic source distance interval in the correspondence between the preset seismic source distance and the excitation mode, and determine the sliding duration of the sliding scanning according to the correspondence between the seismic source distance and the sliding duration in the correspondence between the preset seismic source distance and the excitation mode;
and the third excitation mode determining subunit is configured to determine that the excitation mode corresponding to the subsequently excited seismic source is the autonomous excitation when the seismic source distance between the two adjacent seismic sources is located in a third seismic source distance interval in the correspondence between the preset seismic source distance and the excitation mode.
10. The seismic data acquisition device of claim 7, wherein the line data acquisition module comprises:
the line measurement data acquisition unit is used for acquiring vibration signals detected by the detectors on the line measurement lines through at least one cross station arranged on each line measurement line;
and the cross station data acquisition unit is used for receiving the vibration signals sent by the cross stations through the jumper wires of the cross stations connected to the measuring wires.
11. The seismic data acquisition device of claim 7, wherein the line data acquisition module further comprises:
and the chaotic data separation unit is used for carrying out aliasing data separation processing on the acquired vibration signals to obtain effective vibration signals and noise vibration signals and obtaining two-dimensional line measurement data according to the effective vibration signals.
12. The seismic data collection device of claim 7, further comprising:
the measuring line position determining unit is used for acquiring the position information of the plurality of measuring lines in the target work area;
and the target work area geological analysis unit is used for carrying out transverse geological analysis on the target work area according to the position information of the measuring lines, the position information of each seismic source on each measuring line and the two-dimensional measuring line data respectively corresponding to the measuring lines to obtain the transverse geological feature data of the target work area.
13. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the steps of the seismic data acquisition method of any of claims 1 to 6 are implemented when the program is executed by the processor.
14. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the seismic data acquisition method according to any one of claims 1 to 6.
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