CN108508477B

CN108508477B - Seismic data acquisition system and method

Info

Publication number: CN108508477B
Application number: CN201810520289.8A
Authority: CN
Inventors: 罗福龙; 夏颖; 甘志强; 王旭宏; 易碧金
Original assignee: China National Petroleum Corp; BGP Inc
Current assignee: China National Petroleum Corp; BGP Inc
Priority date: 2018-05-28
Filing date: 2018-05-28
Publication date: 2020-06-09
Anticipated expiration: 2038-05-28
Also published as: CN108508477A

Abstract

The embodiment of the application provides a seismic data acquisition system and a method, wherein the system comprises: the system comprises a central controller, a plurality of seismic instruments and a plurality of acquisition controllers, wherein each seismic instrument is coupled with one acquisition controller respectively; the acquisition controller determines and sends a determination result of the seismic instrument according to the preparation instruction; the central controller sends acquisition instructions according to the determination result of the seismic instruments, the acquisition instructions comprise acquisition starting time, and the scheme is characterized in that an acquisition controller is arranged for each seismic instrument and is centrally controlled by one central controller through control instructions, so that the technical problems of weak channel carrying capacity and poor synchronism in the existing method are solved, and the technical effect of efficiently and accurately controlling a large amount of acquisition equipment to synchronously acquire large-scale seismic data is achieved.

Description

Seismic data acquisition system and method

Technical Field

The application relates to the technical field of seismic exploration, in particular to a seismic data acquisition system and a seismic data acquisition method.

Background

In the field of seismic exploration, with the progress of technology, a high-precision, wide-band and full-wave field is gradually becoming a development direction of seismic exploration, which also puts higher and higher requirements on acquisition and control of seismic data.

At present, in order to realize the acquisition of seismic data, it is considered that most of common seismic data acquisition systems control 2 to 3 seismic instruments to acquire seismic data through one control device. Due to the control capability of a single control device, synchronization during acquisition can be maintained by only a few seismic instruments controlled by the same control device, which makes it difficult to meet the requirements of large-scale seismic data acquisition. The technical problems of weak lane carrying capacity and poor synchronism often exist in the concrete implementation of the existing method.

In view of the above problems, no effective solution has been proposed.

Disclosure of Invention

The embodiment of the application provides a seismic data acquisition system and a seismic data acquisition method, which aim to solve the technical problems of weak track carrying capacity and poor synchronism of the existing method and achieve the technical effect of efficiently and accurately controlling a large number of seismic instruments to synchronously acquire large-scale seismic data.

The embodiment of the application provides a seismic data acquisition system, includes: a central controller, a plurality of seismic instruments, and a plurality of acquisition controllers, wherein each of the plurality of seismic instruments is coupled to one acquisition controller, respectively, wherein:

the central controller is coupled with the acquisition controller and is used for sending a preparation instruction to the acquisition controller, and the preparation instruction comprises a shot point pile number;

the acquisition controller is used for determining the shot point pile number according to the preparation instruction, determining whether a target acquisition array corresponding to the shot point pile number exists in acquisition arrays of seismic instruments coupled with the acquisition controller according to the shot point pile number to generate a determination result of the seismic instruments, and sending the determination result of the seismic instruments to the central controller;

the central controller is used for sending an acquisition instruction to the acquisition controller according to the determination result of the seismic instrument, wherein the acquisition instruction comprises acquisition starting time, and the acquisition starting time is the starting time for the acquisition controller to control the seismic instrument with the target acquisition array to acquire seismic data by using the target acquisition array.

In one embodiment, the central controller and the acquisition controller include a satellite function module for acquiring a reference time and correcting the local time of the acquisition controller using the reference time.

In one embodiment, the central controller and the acquisition controller respectively further include a data communication module, and the central controller and the acquisition controller perform data interaction through the data communication module.

In one embodiment, the central controller is integrated with one of the plurality of acquisition controllers.

The embodiment of the application also provides a seismic data acquisition method, which comprises the following steps:

sending a preparation instruction to a plurality of acquisition controllers coupled with seismic instruments by using a central controller in a seismic data acquisition system, wherein the preparation instruction comprises shot point pile numbers;

receiving a determination result of a seismic instrument, and sending acquisition instructions to the plurality of acquisition controllers according to the determination result of the seismic instrument, wherein the acquisition instructions comprise acquisition starting time, the determination result of the seismic instrument is used for representing whether a target acquisition array corresponding to the shot point pile number exists in acquisition arrays of the seismic instrument coupled with the acquisition controllers, and the acquisition starting time is the starting time for the acquisition controllers to control the seismic instrument with the target acquisition array to acquire seismic data by using the target acquisition array.

In one embodiment, prior to sending acquisition instructions to the plurality of acquisition controllers based on the determination of the seismic instrument, the method further comprises:

and acquiring reference time, and correcting the local time of the central controller by using the reference time.

In one embodiment, prior to applying a central controller in a seismic data acquisition system to send preparation instructions to a plurality of acquisition controllers coupled to seismic instruments, the method further comprises:

receiving state information of acquisition arrangement of the seismic instrument sent by an acquisition controller;

and determining whether the acquisition arrangement of the seismic instrument meets the construction requirements or not according to the state information of the acquisition arrangement of the seismic instrument.

In one embodiment, sending acquisition instructions to the plurality of acquisition controllers based on the determination of the seismic instrument comprises:

determining whether the target acquisition arrangement of the seismic instrument is consistent with the range of the target acquisition arrangement according to the determination result of the seismic instrument, wherein the range of the target acquisition arrangement corresponds to the shot point pile number;

and sending the acquisition instruction to the plurality of acquisition controllers under the condition that the target acquisition arrangement of the seismic instrument is consistent with the range of the target acquisition arrangement.

In one embodiment, prior to sending the acquisition instructions to the plurality of acquisition controllers, the method further comprises:

acquiring the pre-excitation time of a shot point;

and determining the acquisition starting time according to the pre-excitation time of the shot point, and generating the acquisition instruction according to the acquisition starting time.

In one embodiment, after the central controller in the seismic data acquisition system is applied to send preparation instructions to a plurality of acquisition controllers coupled to the seismic instruments, the method further comprises, with the central controller integrated with one of the plurality of acquisition controllers:

and determining whether a target acquisition array corresponding to the shot point pile number exists in the acquisition arrays of the seismic instruments coupled with the central controller according to the shot point pile number so as to generate a determination result of the seismic instruments.

receiving a preparation instruction by using an acquisition controller in a seismic data acquisition system, wherein the preparation instruction comprises a shot point pile number;

determining the shot point pile number according to the preparation instruction;

determining whether a target acquisition array corresponding to the shot point pile number exists in acquisition arrays of seismic instruments coupled with an acquisition controller according to the shot point pile number to generate a determination result of the seismic instruments, and sending the determination result of the seismic instruments to a central controller;

receiving an acquisition instruction, and determining acquisition starting time according to the acquisition instruction, wherein the acquisition starting time is the starting time for controlling seismic instruments with target acquisition arrays to acquire seismic data by using the target acquisition arrays by an acquisition controller.

In one embodiment, after receiving the acquisition instruction and determining the acquisition start time according to the acquisition instruction, the method further comprises:

and controlling the seismic instrument coupled with the acquisition controller to acquire the seismic data by using the target acquisition array of the seismic instrument according to the acquisition starting time under the condition that the determined result of the seismic instrument is that the target acquisition array corresponding to the shot point pile number exists in the acquisition array of the seismic instrument.

In one embodiment, determining from the shot point stake number whether a target acquisition spread corresponding to the shot point stake number exists in acquisition spreads of seismic instruments coupled to an acquisition controller comprises:

determining the range of target acquisition arrangement corresponding to the shot point pile number according to the associated files of the shot points and the acquisition arrangement;

and retrieving the acquisition arrangement of the seismic instruments coupled with the acquisition controller according to the range of the target acquisition arrangement so as to determine whether the target acquisition arrangement corresponding to the shot point pile number exists in the acquisition arrangement of the seismic instruments.

In the embodiment of the application, the acquisition controllers are respectively arranged for each seismic instrument in the plurality of seismic instruments, and are subjected to centralized control by the central controller, and the central controller directly sends a uniform control instruction to each acquisition controller, so that the centralized control of the plurality of seismic instruments is realized. The method for acquiring the seismic data avoids the problem of poor real-time channel-taking capability caused by the limited processing capability of a single acquisition controller on one hand, and can ensure the synchronism of a plurality of different seismic instruments when acquiring the multi-channel seismic data on the other hand, thereby solving the technical problems of weak channel-taking capability and poor synchronism in the prior art and achieving the technical effect of efficiently and accurately controlling a large amount of acquisition equipment comprising the seismic instruments to synchronously acquire large-scale seismic data.

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, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort.

FIG. 1 is a schematic diagram of a seismic data acquisition system according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of a component structure of another seismic data acquisition system provided in accordance with an embodiment of the present application;

FIG. 3 is a process flow diagram of a seismic data acquisition method provided in accordance with an embodiment of the present application;

FIG. 4 is a process flow diagram of another seismic data acquisition method provided in accordance with an embodiment of the present application;

FIG. 5 is a schematic structural diagram of an electronic device for a seismic data acquisition method according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of seismic data acquisition using the seismic data acquisition system and method provided by embodiments of the present application in one example scenario;

FIG. 7 is a schematic diagram of an acquisition controller used in applying the seismic data acquisition system and method provided by embodiments of the present application in one example scenario.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, 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 only a part of the embodiments of the present application, and not all of the 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.

Under the current seismic instrument technical conditions, in order to meet the requirements of large channel number and high-density seismic data acquisition, most of the existing seismic data acquisition methods utilize the existing connecting equipment to connect a plurality of seismic instruments so as to control and manage larger-scale acquisition arrangement, thereby obtaining seismic data with higher quality. However, the above method is limited by the existing connection equipment used, and a small number (e.g. two) of seismic instruments can be connected at the same time, and one seismic instrument has limited management and control capability for the acquisition array, so that it is difficult to satisfy management and control for a large-scale acquisition array (e.g. millions of channels) by using the existing equipment based on the existing method. In addition, when the existing connecting equipment is used for connecting a plurality of seismic instruments, the synchronism is poor, and errors are easy to occur in specific implementation. Particularly, when the number of connected seismic instruments is large, the problem is more remarkable, and the acquisition effect of seismic data is affected. In summary, the existing method has the technical problems of weak lane-carrying capability and poor synchronism in the concrete implementation. Aiming at the root cause of the technical problems, the acquisition controllers corresponding to the seismic instruments are arranged on the seismic instruments, the acquisition controllers are used for connecting the seismic instruments, the preparation instructions, the acquisition instructions and the like are interactively transmitted among the acquisition controllers so as to coordinate and uniformly control the seismic instruments to synchronously acquire seismic data, the integral channel carrying capacity is improved, the technical problems of weak channel carrying capacity and poor synchronism in the existing method are solved, and the technical effect of efficiently and accurately controlling a large number of seismic instruments to synchronously acquire large-scale seismic data is achieved.

Based on the thought, the embodiment of the application provides a seismic data acquisition system. Specifically, please refer to fig. 1, which is a schematic structural diagram of a seismic data acquisition system according to an embodiment of the present application. The seismic data acquisition system may specifically include: a central controller, a plurality of seismic instruments, and a plurality of acquisition controllers, wherein each of the plurality of seismic instruments is coupled to one acquisition controller, respectively, wherein:

the central controller may be specifically coupled to the acquisition controller, and may be specifically configured to send a preparation instruction to the acquisition controller, where the preparation instruction includes a shot point stake number;

the acquisition controller may be specifically configured to determine the shot point pile number according to the preparation instruction, and the acquisition controller may specifically determine, according to the shot point pile number, whether a target acquisition array corresponding to the shot point pile number exists in acquisition arrays of seismic instruments coupled to the acquisition controller, so as to generate a determination result of the seismic instrument, and send the determination result of the seismic instrument to the central controller;

the central controller may be specifically configured to send an acquisition instruction to the acquisition controller according to a determination result of the seismic instrument, where the acquisition instruction includes acquisition start time, and the acquisition start time is start time for the acquisition controller to control the seismic instrument with the target acquisition array to acquire seismic data by using the target acquisition array.

In an embodiment, the acquisition instruction may further include a recording duration. The recording duration may be specifically a time range for continuously recording the seismic data after the seismic instrument indicating the existence of the target acquisition array starts the seismic data acquisition by using the target acquisition array. Therefore, the seismic instruments with the target acquisition arrangement can respond to the acquisition starting time in time to start the seismic data acquisition, and accurately acquire and record the seismic data within the recording duration range.

In this embodiment, the seismic devices may be wired seismic devices of the same type, or wired seismic devices of different types. The seismic instruments are respectively provided with a certain number of acquisition arrays, and in the process of acquiring seismic data, the seismic instruments can respectively acquire related seismic data through target acquisition arrays corresponding to shot points in the respective controlled acquisition arrays.

In this embodiment, each of the plurality of seismic apparatuses is coupled to one acquisition controller, and each acquisition controller is coupled to a central controller. Therefore, the central controller can uniformly send related instructions to the acquisition controller, and the acquisition controller can correspondingly control the seismic instruments coupled with the acquisition controller according to the received related instructions. The acquisition controllers are respectively arranged on the seismic instruments to correspondingly control the seismic instruments, and then one central controller controls the acquisition controllers to achieve unified centralized control on a plurality of different seismic instruments, so that the control capability of a single seismic instrument can be overcome, the central controller controls the plurality of acquisition controllers in a centralized manner to improve the whole band-pass capability of the seismic data acquisition system, and therefore, on one hand, the problem of poor band-pass capability caused by limited self processing capability of the single acquisition controller can be avoided, and the band-pass capability is improved from the whole system; on the other hand, the synchronism of a plurality of different seismic instruments for acquiring multi-channel seismic data can be ensured, so that the seismic data acquired by the seismic data acquisition system can meet the precision requirement.

In this embodiment, the seismic equipment may be coupled to the corresponding acquisition controller by a wired or wireless method. Similarly, the central controller may be coupled to the acquisition controllers in a wired or wireless manner. The coupling mode between the seismic instrument and the acquisition controller and the coupling mode between the central controller and the acquisition controller are not limited in the present application.

In one embodiment, the central controller and the acquisition controller may specifically include a satellite function module, and the satellite function module is configured to acquire a reference time and correct the local time of the acquisition controller by using the reference time.

In this embodiment, the central controller and the acquisition controller respectively include a satellite function module, and the satellite function module can communicate with a satellite to obtain the reference time through satellite time service; and furthermore, the reference time is used as standard time, the local time of the acquisition controller and the central controller is corrected, and the use time of different acquisition controllers and central controllers is used, so that errors caused by different controllers due to different local times to seismic data acquisition are avoided, and the synchronization and the accuracy of the seismic data acquisition of a plurality of seismic instruments are further improved.

In an embodiment, the central controller and the acquisition controller may further include a data communication module, and the central controller and the acquisition controller perform data interaction through the data communication module. In specific implementation, the central controller can send a preparation instruction and an acquisition instruction to the acquisition controller through the data communication module, and receive a determination result of the seismic instrument sent by the acquisition controller. Correspondingly, the acquisition controller can receive the preparation instruction and the acquisition instruction sent by the central controller through the data communication module and send the determination result of the seismic instrument to the central controller.

In one embodiment, the central controller may be integrated with one of the plurality of acquisition controllers.

In this embodiment, the central controller may be specifically integrated with one of the plurality of acquisition controllers, and may be specifically understood as one of the plurality of acquisition controllers coupled to the seismic instrument as the central controller. For example, the acquisition controller of the seismic equipment connected to the teledetonation system may be selected as the central controller. Therefore, the number of seismic instruments used by the seismic data acquisition system can be reduced, the connection control flow is reduced, the acquisition efficiency is further improved, and the method is more suitable for seismic data acquisition scenes in real working conditions. The central controller and the acquisition controller can be specifically controllers with the same structure and function, and only the tasks executed in the construction process are different.

In one embodiment, in a specific construction working condition, generally, for convenience of control, and also for reducing the number of controllers used, reducing implementation cost, and improving processing efficiency, during specific implementation, one seismic instrument in a seismic data acquisition system may be selected as a first seismic instrument (or called a main seismic instrument), and an acquisition controller of the first seismic instrument is integrated with a central controller; or the acquisition controller of the first seismic instrument is used as a central controller to execute the work task responsible for the central controller, and meanwhile, the central controller needs to continuously execute the work task responsible for the acquisition controller of the seismic instrument. The other seismic instruments except the first seismic instrument are unified as a second seismic instrument (or called slave seismic instrument), and the acquisition controller of the second seismic instrument only executes the work task which is responsible for the acquisition controller. The seismic data acquisition system provided in the embodiment of the present application will be specifically described below by taking as an example a seismic data acquisition system in which a central controller and an acquisition controller are integrally integrated with an acquisition controller of a first seismic instrument.

Specifically, referring to fig. 2, which is a schematic structural diagram of another seismic data acquisition system provided according to an embodiment of the present application, it should be noted that the diagram is limited by the display range of the picture, and only schematically shows the seismic data acquisition system including two second seismic devices, in fact, the seismic data acquisition system provided in the embodiment of the present application includes a plurality of second seismic devices, and the number of the second seismic devices may be specifically two, or may be another number, for example, several tens of thousands. The present application is not limited thereto.

The seismic data acquisition system provided by the embodiment of the application specifically can include: the method comprises the following steps that a first seismic instrument (such as 1 in the figure) and a plurality of second seismic instruments (such as 2 and 3) are respectively provided with corresponding acquisition controllers (such as 10, 20 and 30 in the figure), the acquisition controller of the first seismic instrument is determined to be a central controller due to the fact that the first seismic instrument is connected with a remote detonation system, and the central controller (10) is connected with the acquisition controllers (20 and 30), wherein in the concrete implementation process:

the central controller may be specifically configured to send preparation instructions to the plurality of acquisition controllers, where the preparation instructions include shot point stake numbers; the central controller may specifically determine, according to the shot point stake number, whether a target acquisition array of the first seismic instrument corresponding to the shot point stake number exists in the acquisition arrays of the first seismic instrument, to obtain a determination result of the first seismic instrument:

the acquisition controller may be specifically configured to determine the shot point pile number according to the preparation instruction, determine whether a target acquisition arrangement of a second seismic instrument corresponding to the shot point pile number exists in the acquisition arrangements of the second seismic instrument according to the shot point pile number, and send a determination result of the second seismic instrument to the central controller;

the central controller may be specifically configured to send acquisition instructions to the plurality of acquisition controllers respectively according to the determination result of the first seismic instrument and the determination result of the second seismic instrument, where the acquisition instructions include acquisition start time, and the acquisition start time is used to indicate a target acquisition array of the first seismic instrument and/or start time for acquiring seismic data by the target acquisition array of the second seismic instrument.

In this embodiment, the number of the first seismic equipment in the seismic data acquisition system may be one, and the number of the second seismic equipment may be multiple. The number of the second seismic instruments can be specifically determined according to the scale of the seismic data to be acquired. When the scale of the seismic data to be acquired is large (for example, millions of channels), the number of the second seismic instruments can be increased to expand the channel carrying capacity of the whole seismic data acquisition system, so that high-quality seismic data can be acquired, and for example, seismic data meeting the requirements of two widths and one height (namely, wide frequency band, wide azimuth and high density) can be acquired.

In the present embodiment, the first seismic equipment may be referred to as a main seismic equipment in a concrete construction. Accordingly, the central controller may be specifically referred to as a main acquisition controller. The second seismic equipment may also be referred to as slave seismic equipment in specific construction. Accordingly, the acquisition controller may be specifically a slave acquisition controller. The first and second (or master and slave) tags are mainly used for distinguishing different types of work tasks borne by the seismic instrument and the acquisition controller corresponding to the seismic instrument in the process of carrying out specific seismic data acquisition by the whole seismic data acquisition system. In particular, for example, the central controller may be understood to be approximately the center of data interaction, command control of the entire seismic data acquisition system, while also being responsible for acquiring seismic data for the range for which the first seismic instrument is responsible. During specific implementation, the central controller can be used for collecting related information of the second seismic instrument so as to determine the overall state of the seismic data acquisition system; sending related instructions to the acquisition control of a plurality of second seismic instruments through the central controller so as to coordinate different seismic instruments to synchronously acquire corresponding seismic data; and simultaneously, the corresponding acquisition array responsible for acquiring the seismic data is also utilized. The acquisition control of the second seismic apparatus can feed back the state information to the central controller, receive the instruction of the central controller, and control the corresponding second seismic apparatus to execute corresponding tasks according to the instruction, for example, acquiring seismic data by using corresponding acquisition arrays.

In this embodiment, the first seismic equipment and the second seismic equipment may be the same type of seismic equipment, and may be different types of seismic equipment. In the present embodiment, in order to facilitate maintenance management (e.g., charging and maintenance) of the seismic equipment, improve storage and transmission performance of seismic data acquired in a large number, and improve operational stability of the entire seismic data acquisition system, the first seismic equipment and the second seismic equipment used may be wired seismic equipment.

In this embodiment, the first and second work task tags of the seismic apparatus may be set or modified according to the construction requirements. Specifically, the acquisition controller comprises a parameter setting module, and the corresponding seismic instrument and the corresponding work task label of the acquisition controller can be set through the parameter setting module so as to indicate the work task type mainly responsible for the seismic instrument and the acquisition controller during seismic data acquisition. For example, the seismic instrument a may be set as the first seismic instrument by the parameter setting module in the acquisition controller of the seismic instrument a, and correspondingly, the acquisition control module of the seismic instrument a is the central controller. In specific implementation, the work task labels of the seismic instruments in the seismic data acquisition system can be changed and modified. One seismic instrument can be flexibly selected to be set as a first seismic instrument according to specific conditions and construction requirements, and other seismic instruments can be set as second seismic instruments. For example, a seismic instrument at a central position in an area where seismic data is to be acquired may be set as a first seismic instrument, and other seismic instruments may be set as second seismic instruments. In addition, the seismic equipment located in the area with stronger communication signals or the area with flatter terrain can be selected as the first seismic equipment. The present application is not limited thereto. In addition, the identity number of the corresponding seismic instrument and the identity number of the acquisition controller can be set through the parameter setting module, for example, the identity number of a certain second seismic instrument can be set to be 3, the identity number of the corresponding acquisition controller is 30, the identity number of another second seismic instrument is set to be 2, and the identity number of the corresponding acquisition controller is 20. The execution mode of the modular instrument can also be set through the parameters, and other auxiliary parameters.

In this embodiment, the first seismic equipment and the second seismic equipment are respectively responsible for controlling the acquisition arrangement within a certain range in the target area. Reference may be made to the acquisition arrangement shown in figure 1 for complex control of the individual seismic instruments. The acquisition arrangement is specifically understood to be a combination of geophone points arranged in a target area according to a construction standard, and is used for receiving seismic waves generated by shot point excitation and generating corresponding seismic data. It should be noted that, according to specific situations and construction requirements, different shot points often correspond to different acquisition arrangements, and the corresponding acquisition arrangements need to be started to acquire the relevant seismic data. For example, for a B shot, the corresponding acquisition permutation may be the acquisition permutation of range 2 in the acquisition permutation controlled by the first seismic instrument and all the acquisition permutations controlled by the second seismic instrument 30, while the second seismic instrument 20 does not have an acquisition permutation corresponding to that shot. In the process of acquiring specific seismic data, the acquisition array corresponding to the shot point is called and started as a target acquisition array by each seismic instrument according to the excited shot point to acquire the seismic data.

In this embodiment, the collection controller may specifically include a data communication module, so that the central controller may perform data interaction with the collection controllers through the data communication module. For example, the central controller may send a preparation command, a collection command, and the like through the data communication module, or receive data such as a determination result of the second seismic equipment.

In this embodiment, the acquisition controller may further include a control interface module, where the control interface module may be specifically connected to the corresponding seismic instrument. The acquisition controller can perform data interaction with the corresponding seismic instrument to further perform corresponding control on the seismic instrument, for example, whether the acquisition array corresponding to the shot point pile number exists in the acquisition array of the corresponding seismic instrument can be retrieved and determined through the control interface module, and the control interface module can also control the seismic instrument to call the corresponding acquisition array to perform seismic data acquisition.

In this embodiment, the acquisition controller may further include a main control unit, and the main control unit may be a processor with certain data processing capability. The main control unit can be respectively connected with each functional module in the acquisition controller, and the acquisition control can be controlled by controlling the corresponding functional module through the main control unit during specific implementation.

In this embodiment, in a specific implementation, the main control unit of the central controller may send a preparation instruction to each acquisition controller in the multiple acquisition controllers through the data communication module, where the preparation instruction includes a shot point stake number, and the preparation instruction may be specifically used to instruct each second seismic apparatus to retrieve whether a target acquisition arrangement corresponding to the shot point stake number exists in an acquisition arrangement responsible for acquiring seismic waves generated by excitation of the shot point stake number. And when the main control unit controls the data communication module, the main control unit can control the control interface module of the acquisition controller, and the control interface module is used for searching whether a target acquisition array of the first seismic instrument corresponding to the shot point pile number exists in the acquisition array of the corresponding first seismic instrument so as to form a determination result of the first seismic instrument. When the retrieval is determined, the control interface module specifically determines the range of the target acquisition arrangement corresponding to the shot point pile number by retrieving the shot points and the acquisition association files preset on the central controller according to the shot point pile number, and then retrieves whether the acquisition arrangement consistent with the range of the target acquisition arrangement exists in the acquisition arrangements of the first seismic instrument as the target acquisition arrangement of the first seismic instrument according to the range of the target acquisition arrangement so as to generate a corresponding first determination result. In the case that the target acquisition array of the first seismic instrument is retrieved, the first determination result may specifically include: and confirming the existence of information such as the target acquisition arrangement of the first seismic instrument corresponding to the shot point pile number, the range of the target acquisition arrangement of the first seismic instrument, the state of the target acquisition arrangement of the first seismic instrument, the identity number of the first seismic instrument and the like. In the case where the target acquisition spread of the first seismic instrument is not retrieved, the first determination may specifically include: and confirming that information such as target acquisition arrangement of the first seismic instrument corresponding to the shot point pile number, the identity number of the first seismic instrument and the like does not exist.

On the other side, the main control unit of the acquisition controller receives a preparation instruction sent by the acquisition control unit of the first seismic instrument through the data communication module, analyzes the preparation instruction to determine the pile number of the shot point, and then sends the pile number of the shot point to the control interface module of the acquisition controller, so that the control interface module can determine whether the target acquisition array of the second seismic instrument corresponding to the pile number of the shot point exists in the acquisition array of the corresponding second seismic instrument according to an execution mode similar to that of the control interface module of the first seismic instrument, and obtains a determination result of the corresponding second seismic instrument. Wherein, in the case of retrieving the target acquisition arrangement of the second seismic apparatus, the second determination result may specifically include: and confirming the existence of information such as target acquisition arrangement of the second seismic instrument corresponding to the shot point pile number, the range of the target acquisition arrangement of the second seismic instrument, the state of the target acquisition arrangement of the second seismic instrument, the identity number of the second seismic instrument and the like. In the case that the target acquisition arrangement of the second seismic apparatus is not retrieved, the second determination result may specifically include: and confirming that information such as target acquisition arrangement of the second seismic instrument corresponding to the shot point pile number, the identity number of the second seismic instrument and the like does not exist. And the main control unit sends the determination result of the second seismic instrument to the central controller through the control data communication module.

And the main control unit of the central controller receives the determination of the second seismic instrument through the data communication module, and determines whether the target acquisition arrangement corresponding to the shot point pile number is found or not according to the determination result of the first seismic instrument and the determination result of the second seismic instrument and the range of the target acquisition arrangement corresponding to the shot point pile number. After the target acquisition arrangement corresponding to the shot point pile number is determined to be found, the data communication module is used for sending acquisition instructions to the plurality of acquisition controllers respectively, so that each acquisition controller can control the corresponding seismic instrument to synchronously acquire seismic data according to the acquisition instructions. The acquisition instruction comprises acquisition starting time, and the acquisition starting time can be specifically used for indicating the specific time for acquiring the seismic data by the target acquisition array of the first seismic instrument and/or the target acquisition array of the second seismic instrument corresponding to the shot point pile number.

In this embodiment, when the central controller determines that all the target acquisition arrays corresponding to the shot point pile numbers are not found according to the determination result of the first seismic instrument and the determination result of the second seismic instrument with reference to the range of the target acquisition arrays corresponding to the shot point pile numbers, it may determine that the current seismic data acquisition system cannot meet the construction requirements, may suspend the operation of the first seismic instrument, and send a suspension instruction to each acquisition controller so as to suspend the operation of the second seismic instrument, and at the same time send an error indication to the command control point so that a technician at the command control point detects and repairs the seismic data acquisition control system, and after the existing problems are eliminated, acquire the seismic data.

In the present embodiment, the target acquisition arrangement is different depending on the shot point. For example, for shot a, the corresponding target acquisition arrangement may include a target acquisition arrangement for a first seismic instrument and a target acquisition arrangement for each of a plurality of second seismic instruments. For shot point B, the corresponding target acquisition arrangement may further include a target acquisition arrangement of the first seismic instrument and a target acquisition arrangement of a second seismic instrument among the plurality of second seismic instruments. In addition, for shot point C, the corresponding target acquisition arrangement may not include the target acquisition arrangement of the first seismic instrument, but only include the target acquisition arrangement of a part of the second seismic instruments among the plurality of second seismic instruments.

After the central controller sends the acquisition instruction, under the condition that the target acquisition array of the first seismic instrument corresponding to the shot point exists in the acquisition array of the first seismic instrument, the main control unit of the acquisition controller can control the first seismic instrument to call the target acquisition array of the first seismic instrument through the control interface module to acquire the seismic data at the acquisition starting time.

After the acquisition controller receives the acquisition instruction, the acquisition controller determines acquisition starting time through analysis of the acquisition instruction. After the acquisition starting time is determined, the acquisition controller with the target acquisition arrangement of the second seismic instrument can use the control interface module to control the corresponding second seismic instrument to call the corresponding target acquisition arrangement of the second seismic instrument to acquire seismic data at the acquisition starting time. And analyzing the acquisition instruction for the acquisition controller of the target acquisition array without the second seismic instrument, and controlling the corresponding second seismic instrument not to acquire seismic data at the acquisition starting time.

In the embodiment of the application, compared with the existing method, the method has the advantages that the acquisition controllers are respectively arranged for the seismic instruments in the plurality of seismic instruments, the acquisition controllers are controlled in a centralized manner by the central controller, and the central controller directly sends a uniform control instruction to the acquisition controllers, so that the centralized control of the plurality of seismic instruments is realized. The method for acquiring the seismic data avoids the problem of poor channel-carrying capacity caused by the limited processing capacity of a single acquisition controller on one hand, and can ensure the synchronism of a plurality of different seismic instruments when acquiring the multi-channel seismic data on the other hand, thereby solving the technical problems of weak channel-carrying capacity and poor synchronism in the existing method and achieving the technical effect of efficiently and accurately controlling a large number of seismic instruments to synchronously acquire large-scale seismic data.

In one embodiment, it is contemplated that the local times of acquisition controllers for different seismic instruments and for different seismic instruments may vary, resulting in errors in the inability to synchronize acquisition when seismic data is specifically acquired. In order to improve the synchronization performance of cooperative acquisition of different seismic instruments in the seismic data acquisition system and improve the accuracy of acquired seismic data, the acquisition controller may further include a satellite function module. The satellite function module can realize satellite time service, can be specifically used for receiving satellite signals, obtains standard time as reference time according to the satellite signals, and corrects the acquisition controller of the seismic instrument and the local time of the corresponding seismic instrument by utilizing the reference time so as to unify each seismic instrument in the seismic data acquisition system and the local time used by the acquisition controller of the seismic instrument, thereby being capable of synchronously and accurately acquiring the seismic data at the acquisition starting time.

In an embodiment, in specific implementation, the acquisition controller further includes a data storage module, where the data storage module may be specifically configured to store corresponding parameters set by a user through the parameter setting module, and an association file of shot point acquisition arrangements that need to be used when determining a target acquisition arrangement. Therefore, the main control unit of the acquisition controller can conveniently call the data to perform corresponding processing, and the processing efficiency is improved.

In one embodiment, the acquisition controller may further include a power module, and the power module may be specifically configured to provide energy required for each functional module in the acquisition controller to perform a specific task, so as to facilitate seismic data acquisition in the field. The power module may be a power module shared with the seismic instrument, or an independent power module separated from the power module of the seismic instrument. The present application is not limited thereto.

In an embodiment, in order to improve the interactivity with the user, improve the user experience, and facilitate the user operation, in the specific implementation, the acquisition controller may further include an information display module. The information display module may specifically include a display screen. The acquisition array channel and the acquisition array state of the current seismic instrument can be visually displayed to a user according to user instructions through a display screen, or the target acquisition array channel and the target acquisition array channel state of the current seismic instrument can be displayed to the user; the relevant content of data such as preparation instructions, acquisition instructions and the like and the progress of the seismic data acquisition process can be displayed to the user according to the user instructions, so that the user can master the execution status of each step in the seismic data acquisition process in real time and give corresponding instructions more accurately.

In one embodiment, the first seismic apparatus may be further connected to a remote detonation system. The remote detonation system can be specifically used for setting the pile number of a shot point to be excited, setting shot point excitation time and carrying out specific shot point excitation in the seismic data acquisition process. The central controller can acquire the shot point pile number and the pre-excitation time of the shot point through the remote explosion system. Furthermore, the main control unit can generate a corresponding preparation instruction according to the shot point stake number. The main control unit can also calculate the acquisition starting time according to the pre-excitation time of the shot point and then generate a corresponding acquisition instruction according to the acquisition starting time, so that the whole seismic data acquisition system and the remote explosion system can be synchronized to be matched with the specific shot point pile number and the shot point excitation time to carry out accurate seismic data acquisition.

In one embodiment, the central controller may further obtain parameters such as data transmission delay and acquisition start delay, and further may synthesize the parameters such as the pre-firing time of the shot, the data transmission delay and the acquisition start delay to generate the acquisition start time with higher accuracy, so as to more accurately control the seismic instrument to acquire the seismic data.

It should be noted that, the systems, devices, modules or units described in the above embodiments may be implemented by a computer chip or an entity, or implemented by a product with certain functions. For convenience of description, in the present specification, the above devices are described as being divided into various units by functions, and are described separately. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.

Moreover, in the subject specification, adjectives such as first and second may only be used to distinguish one element or action from another element or action without necessarily requiring or implying any actual such relationship or order. References to an element or component or step (etc.) should not be construed as limited to only one of the element, component, or step, but rather to one or more of the element, component, or step, etc., where the context permits.

From the above description, it can be seen that, in the seismic data acquisition system provided in the embodiment of the present application, an acquisition controller is respectively provided for each of a plurality of seismic instruments, and the acquisition controllers are centrally controlled by a central controller, and the central controller directly sends a uniform control instruction to each acquisition controller, thereby implementing centralized control over the plurality of seismic instruments. The method for acquiring the seismic data avoids the problem of poor channel-carrying capacity caused by the limited processing capacity of a single acquisition controller on one hand, and can ensure the synchronism of a plurality of different seismic instruments when acquiring the multi-channel seismic data on the other hand, thereby solving the technical problems of weak channel-carrying capacity and poor synchronism in the existing method and achieving the technical effect of efficiently and accurately controlling a large number of seismic instruments to synchronously acquire large-scale seismic data; and the satellite function modules are arranged in the acquisition controller and the central controller to acquire and correct the local time of the acquisition controller by using the reference time, so that errors caused by time differences among different acquisition controllers are avoided, the synchronism in the seismic data acquisition process is improved, and the accuracy of the acquired seismic data is improved.

For the seismic data acquisition system, the embodiment of the application also provides a seismic data acquisition method using the seismic data acquisition system. Please refer to a processing flow chart of a seismic data acquisition method according to an embodiment of the present application shown in fig. 3, which is particularly applied to a seismic data acquisition method at a side of a central controller. When the method is implemented, the following steps can be included.

S31: sending a preparation instruction to a plurality of acquisition controllers coupled with seismic instruments by using a central controller in the seismic data acquisition system, wherein the preparation instruction comprises shot point pile numbers;

s32: receiving a determination result of a seismic instrument, and sending acquisition instructions to the plurality of acquisition controllers according to the determination result of the seismic instrument, wherein the acquisition instructions comprise acquisition starting time, the determination result of the seismic instrument is used for representing whether a target acquisition array corresponding to the shot point pile number exists in acquisition arrays of the seismic instrument coupled with the acquisition controllers, and the acquisition starting time is the starting time for the acquisition controllers to control the seismic instrument with the target acquisition array to acquire seismic data by using the target acquisition array.

In one embodiment, before sending the acquisition instruction to the plurality of acquisition controllers according to the determination result of the seismic instrument, the method may be further implemented by: and acquiring reference time, and correcting the local time of the central controller by using the reference time.

In one embodiment, before sending the preparation instruction to the plurality of acquisition controllers coupled to the seismic instrument by using the central controller in the seismic data acquisition system, the method may further specifically include:

s1: receiving state information of acquisition arrangement of the seismic instrument sent by an acquisition controller;

s2: and determining whether the acquisition arrangement of the seismic instrument meets the construction requirements or not according to the state information of the acquisition arrangement of the seismic instrument.

In one embodiment, the sending of the acquisition instruction to the plurality of acquisition controllers according to the determination result of the seismic instrument may be implemented as follows:

s1: determining whether the target acquisition arrangement of the seismic instrument is consistent with the range of the target acquisition arrangement according to the determination result of the seismic instrument, wherein the range of the target acquisition arrangement corresponds to the shot point pile number;

s2: and sending the acquisition instruction to the plurality of acquisition controllers under the condition that the target acquisition arrangement of the seismic instrument is consistent with the range of the target acquisition arrangement.

In one embodiment, before sending the acquisition instruction to the plurality of acquisition controllers, the method may be further implemented by:

s1: acquiring the pre-excitation time of a shot point;

s2: and determining the acquisition starting time according to the pre-excitation time of the shot point, and generating the acquisition instruction according to the acquisition starting time.

In an embodiment, in a case where the central controller is integrated with one of the acquisition controllers, after the central controller in the seismic data acquisition system sends a preparation instruction to a plurality of acquisition controllers coupled to the seismic instrument, the method may further include: and determining whether a target acquisition array corresponding to the shot point pile number exists in the acquisition arrays of the seismic instruments coupled with the central controller according to the shot point pile number so as to generate a determination result of the seismic instruments.

In one embodiment, considering that in a specific construction condition, one seismic instrument in the seismic data acquisition system is usually selected as a first seismic instrument (or called a main seismic instrument), and an acquisition controller of the first seismic instrument is integrated with a central controller; or the acquisition controller of the first seismic instrument is used as a central controller to execute the work task responsible for the central controller, and meanwhile, the central controller needs to continuously execute the work task responsible for the acquisition controller of the seismic instrument. The other seismic instruments except the first seismic instrument are unified as a second seismic instrument (or called slave seismic instrument), and the acquisition controller of the second seismic instrument only executes the work task which is responsible for the acquisition controller. In the following, taking an example of a seismic data acquisition system in which a central controller and an acquisition controller are integrated into an acquisition controller of a first seismic instrument, how to perform corresponding seismic data acquisition by using the central controller integrated with the acquisition controller of the first seismic instrument in the seismic data acquisition system will be described specifically. The specific implementation process can comprise the following steps.

S1: and sending a preparation instruction to the plurality of acquisition controllers by using the central controller in the seismic data acquisition system, wherein the preparation instruction comprises the shot point pile number.

S2: and determining whether the target acquisition array of the first seismic instrument corresponding to the shot point pile number exists in the acquisition arrays of the first seismic instrument according to the shot point pile number to obtain a determination result of the first seismic instrument.

S3: receiving a determination result of a second seismic instrument, and sending acquisition instructions to the plurality of acquisition controllers according to the determination result of the first seismic instrument and the determination result of the second seismic instrument, wherein the acquisition instructions comprise acquisition starting time, the determination result of the second seismic instrument is used for representing whether a target acquisition array of the second seismic instrument corresponding to the shot point pile number exists in the acquisition array of the second seismic instrument, and the acquisition starting time is used for indicating the target acquisition array of the first seismic instrument and/or the starting time for acquiring seismic data by the target acquisition array of the second seismic instrument.

In this embodiment, in specific implementation, a corresponding acquisition controller may be first set on each seismic instrument, and then a parameter setting module in the acquisition controller sets a seismic instrument (for example, located in the center of a seismic data area to be acquired) meeting requirements as a first seismic instrument, and a corresponding acquisition controller of the seismic instrument as a central controller; and setting other seismic instruments as second seismic instruments, wherein the corresponding acquisition controllers are acquisition controllers. Thereby obtaining the seismic data acquisition system. And the first seismic instrument and the plurality of second seismic instruments carry out data interaction through the central controller and the plurality of acquisition controllers.

In this embodiment, the sending, by the central controller in the seismic data acquisition system, a preparation instruction to the plurality of acquisition controllers, where the preparation instruction includes a shot point stake number, and the implementation may include: the main control unit in the central controller generates a preparation instruction containing the shot point pile number, and then the main control unit controls the data communication module to send the preparation instruction to the acquisition controller. Therefore, the central controller can enable each separated acquisition controller to automatically search and determine through the preparation instruction, so that the determined determination result of the second seismic instrument is gathered to the central controller for analysis, and whether the construction condition for acquiring seismic data of a shot point is met or not is determined.

In this embodiment, the determining, according to the shot point stake number, whether a target acquisition array of the first seismic instrument corresponding to the shot point stake number exists in the acquisition arrays of the first seismic instrument to obtain a determination result of the first seismic instrument may include: and the main control unit of the central controller determines whether a target acquisition array of the first seismic instrument corresponding to the shot point pile number exists in the acquisition arrays of the first seismic instrument by combining and utilizing the control interface module according to the shot point pile number. And under the condition that the target acquisition arrangement of the first seismic instrument exists, generating a range containing the target acquisition arrangement of the first seismic instrument and a corresponding shot point pile number as a determination result of the first seismic instrument. In the case where it is determined that the target acquisition spread of the first seismic instrument does not exist, confirmation information indicating that there is no satisfactory target acquisition spread is generated as a result of the determination of the first seismic instrument.

In this embodiment, the receiving the determination result of the second seismic apparatus and sending the acquisition instruction to the plurality of acquisition controllers according to the determination result of the first seismic apparatus and the determination result of the second seismic apparatus may include: the main control unit of the central controller receives the determination result of the second seismic instrument through the data communication module, synthesizes the received determination result of the second seismic instrument and the determination result of the first seismic instrument, and determines whether the currently determined target acquisition arrangement of the first seismic instrument and/or the currently determined target acquisition arrangement of the second seismic instrument meets the construction condition for acquisition of seismic data of the shot point (for example, determines whether the currently determined target acquisition arrangement of the first seismic instrument and/or the currently determined target acquisition arrangement of the second seismic instrument is consistent with the range of the target acquisition arrangement corresponding to the shot point). And under the condition that the construction conditions are met, generating acquisition starting time by the main control unit according to the shot point pre-excitation time, and generating a corresponding acquisition instruction. And then the acquisition instruction is sent to each acquisition controller through the data communication module. Thus, the specific conditions of the current seismic data acquisition system can be detected and determined through the central controller, namely whether the construction conditions for acquiring the seismic data of the shot point are met or not, and which acquisition arrays of which seismic instruments are to be called specifically for acquiring the seismic data; and then, the acquisition instructions can be generated and uniformly sent to guide the acquisition controllers of different seismic instruments to control the corresponding seismic instruments to synchronously call the target acquisition array at the same acquisition starting time so as to acquire the seismic data of the shot point.

In this embodiment, it is determined that the currently determined target acquisition arrangement of the first seismic equipment and/or the currently determined target acquisition arrangement of the second seismic equipment does not satisfy the construction conditions for acquisition of seismic data for the shot point. For example, when the determined target acquisition arrangement of the first seismic instrument and/or the determined target acquisition arrangement number of the second seismic instrument is less than the total range number of the target acquisition arrangements corresponding to the running point, the current seismic data acquisition system is judged not to meet the construction conditions, and the acquisition of the seismic data should be suspended. At this time, the main control unit in the central controller can send a pause instruction to each acquisition controller through the data communication module and control the first seismic instrument to pause construction through the control interface module; meanwhile, an error prompt is sent to the command control center through the data communication module, so that technicians of the command control center can check each seismic instrument and related connecting circuits in the seismic data acquisition system in time, and the existing problems are solved.

In this embodiment, after sending the acquisition instruction to the plurality of acquisition controllers according to the determination result of the first seismic equipment and the determination result of the second seismic equipment, the method may further include: and controlling the first seismic instrument to acquire seismic data by using the target acquisition array of the first seismic instrument according to the acquisition starting time under the condition that the determination result of the first seismic instrument is that the target acquisition array of the first seismic instrument corresponding to the shot point pile number exists in the acquisition array of the first seismic instrument.

In an embodiment, the determining, by the central controller, whether a target acquisition array of the first seismic instrument corresponding to the shot point stake number exists in the acquisition arrays of the first seismic instrument according to the shot point stake number may specifically include the following:

s1: the central controller determines the range of target acquisition arrangement corresponding to the shot point pile number according to the shot point and the associated file of the acquisition arrangement;

s2: and retrieving the acquisition array of the first seismic instrument according to the range of the target acquisition array so as to determine whether the target acquisition array of the first seismic instrument corresponding to the shot point pile number exists in the acquisition array of the first seismic instrument.

In this embodiment, the associated file of the shot and the collection array may specifically include a corresponding relationship between each shot pile number and the collection array for receiving the seismic waves of the shot. And the associated files of the shot points and the acquisition arrangement can be stored in a data storage module of the acquisition controller. In this way, when the implementation is specific, the main control unit in the central controller may call the association file, determine, according to the correspondence included in the association file, a range of target acquisition arrangement for acquiring seismic waves excited by the shot point, which corresponds to the shot point pile number, and further may retrieve, by the control interface module, whether an arrangement having the same range as the target acquisition arrangement exists in the acquisition arrangement of the first seismic instrument as the target acquisition arrangement of the first seismic instrument, according to the range of the target acquisition arrangement.

In one embodiment, in order to unify the time of the central controller and the acquisition controller, in specific implementation, the time of the acquisition controller of each seismic instrument can be unified by using satellite time service as a standard, so as to avoid acquisition errors caused by local time differences. Specifically, before controlling the first seismic instrument to acquire seismic data by using the target acquisition array of the first seismic instrument according to the acquisition start time, the method may further include: and acquiring reference time provided by the satellite through satellite time service through a satellite functional module, taking the reference time as standard time, and correcting the local time of the central controller by using the reference time. In this way, the time of the central controller can be adjusted according to a uniform time standard, so that the time of the central controller is consistent with the time of the acquisition controller. Of course, a preset time interval (for example, every hour) may be set, and the central controller may acquire the satellite time service as a reference time to correct the local time of the central controller and the first seismic equipment at every preset time interval.

In one embodiment, before sending the preparation instruction to the plurality of acquisition controllers by using the central controller in the seismic data acquisition system, the method may specifically further include the following:

s1: receiving the state information of the acquisition arrangement of the second seismic instrument, and acquiring the state information of the acquisition arrangement of the first seismic instrument;

s2: and determining whether the acquisition arrangement of the first seismic instrument and the acquisition arrangement of the second seismic instrument meet the construction requirements according to the state information of the acquisition arrangement of the first seismic instrument and the state information of the acquisition arrangement of the second seismic instrument.

In this embodiment, the state information of the acquisition array may be specifically used to represent whether the acquisition array state of each seismic apparatus is normal. Before specific seismic data acquisition, the central controller is used for collecting the acquisition and arrangement state information of each second seismic instrument and the acquisition and arrangement state information of the first seismic instrument, and then the acquisition and arrangement state information of the first seismic instrument and the acquisition and arrangement state information of the second seismic instrument can be analyzed in advance to determine whether the acquisition and arrangement of the first seismic instrument and the acquisition and arrangement of the second seismic instrument meet construction requirements or not. If the state of the acquisition array of a certain seismic instrument is abnormal, the acquisition array of the seismic instrument can be overhauled and maintained in time, and the phenomenon that production construction is influenced by faults found in the seismic data acquisition process is avoided.

In an embodiment, the sending of the acquisition instruction to the plurality of acquisition controllers according to the determination result of the first seismic apparatus and the determination result of the second seismic apparatus may include the following steps:

s1: determining whether the target acquisition arrangement of the first seismic instrument and/or the target acquisition arrangement of the second seismic instrument is consistent with the range of the target acquisition arrangement according to the determination result of the first seismic instrument and the determination result of the second seismic instrument;

s2: and sending the acquisition instruction to the plurality of acquisition controllers under the condition that the target acquisition arrangement of the first seismic instrument and the target acquisition arrangement of the second seismic instrument are consistent with the range of the target acquisition arrangement.

In this embodiment, the determining whether the target collection array of the first seismic equipment and/or the target collection array of the second seismic equipment matches the range of the target collection array may specifically be implemented by comparing a current combination of the target collection array of the first seismic equipment and/or the target collection array of the second seismic equipment, which is obtained according to the determination result of the first seismic equipment and the determination result of the second seismic equipment, with the range of the target collection array corresponding to the shot point stake number to determine whether the collection array in the current combination of the target collection array of the first seismic equipment and/or the target collection array of the second seismic equipment corresponds to the range of the target collection array one by one, and if so, determining that the target collection array of the first seismic equipment and/or the target collection array of the second seismic equipment matches the range of the target collection array, and the construction conditions are met, the seismic data of the shot point can be acquired, and an acquisition instruction can be sent. If the fault is not matched, the construction condition is not met, the seismic data acquisition aiming at the shot point cannot be carried out, at this time, a pause instruction can be sent to the acquisition controller, and an error prompt is sent to the command control center, so that technicians of the command control center can carry out fault check processing in time.

s1: acquiring the pre-excitation time of a shot point;

In this embodiment, the first seismic device may be specifically connected to a remote detonation system for firing a shot. The central controller can acquire the shot point excitation time of the remote detonation system through the first seismic instrument, and further can generate an acquisition instruction containing acquisition starting time. Specifically, the main control unit in the central controller may increase the preset duration as the acquisition start time on the basis of the excitation time according to the corresponding rule. The specific value of the preset duration can be determined according to specific conditions and construction precision requirements. The present application is not limited thereto.

In one embodiment, the first instrument may further obtain a shot point stake number to be excited through a remote detonation system, and generate a preparation instruction including the shot point stake number according to the shot point stake number.

In one embodiment, the acquisition instructions contain only acquisition start time information and confirmation instructions requiring the acquisition controller to return after the confirmation is ready, and no instruction information to allow acquisition, in order to more accurately coordinate the acquisition of seismic data by synchronizing the target acquisition arrangements of the various seismic instruments. And further after sending acquisition instructions to the plurality of acquisition controllers, the method further comprises the following steps: receiving confirmation instructions returned by the plurality of acquisition controllers; after the confirmation instructions returned by the plurality of acquisition controllers meet the following conditions, sending an acquisition permission instruction to an acquisition control device of a plurality of second seismic instruments: the central controller receives an acknowledgement indication for each of the plurality of acquisition controllers within a threshold time. If the central controller does not receive the confirmation instructions of all the acquisition controllers, or the time for receiving the confirmation instructions of a certain acquisition controller exceeds the threshold time, the current seismic data acquisition system can be judged to have the risk of interaction delay or interaction failure, at this time, a pause instruction can be respectively sent to each acquisition controller, and an acquisition-permitted instruction is sent after the risk is eliminated through inspection and maintenance. Therefore, the aim of more accurately coordinating a plurality of different seismic instruments to synchronously acquire seismic data can be achieved.

The embodiment of the application also provides another seismic data acquisition method applying the seismic data acquisition system. Please refer to a processing flow chart of another seismic data acquisition method provided by the embodiment of the present application shown in fig. 4, which is particularly applied to the seismic data acquisition method at the acquisition controller side. When the method is implemented, the following steps can be included.

S41: receiving a preparation instruction by using an acquisition controller in the seismic data acquisition system, wherein the preparation instruction comprises a shot point pile number;

s42: determining the shot point pile number according to the preparation instruction;

s43: determining whether a target acquisition array corresponding to the shot point pile number exists in acquisition arrays of seismic instruments coupled with an acquisition controller according to the shot point pile number to generate a determination result of the seismic instruments, and sending the determination result of the seismic instruments to a central controller;

s44: receiving an acquisition instruction, and determining acquisition starting time according to the acquisition instruction, wherein the acquisition starting time is used for instructing an acquisition controller to control the time for acquiring seismic data by using a target acquisition array of seismic instruments with the target acquisition array.

In an embodiment, after receiving the acquisition instruction and determining the acquisition start time according to the acquisition instruction, when the method is implemented, the method may further include: and controlling the seismic instrument coupled with the acquisition controller to acquire the seismic data by using the target acquisition array of the seismic instrument according to the acquisition starting time under the condition that the determined result of the seismic instrument is that the target acquisition array corresponding to the shot point pile number exists in the acquisition array of the seismic instrument.

In one embodiment, determining whether a target acquisition permutation corresponding to the shot point stake number exists in acquisition permutations of seismic instruments coupled to an acquisition controller according to the shot point stake number may include the following:

s1: determining the range of target acquisition arrangement corresponding to the shot point pile number according to the associated files of the shot points and the acquisition arrangement;

s2: and retrieving the acquisition arrangement of the seismic instruments coupled with the acquisition controller according to the range of the target acquisition arrangement so as to determine whether the target acquisition arrangement corresponding to the shot point pile number exists in the acquisition arrangement of the seismic instruments.

In one embodiment, considering that in a specific construction condition, one seismic instrument in the seismic data acquisition system is usually selected as a first seismic instrument (or called a main seismic instrument), and an acquisition controller of the first seismic instrument is integrated with a central controller; or the acquisition controller of the first seismic instrument is used as a central controller to execute the work task responsible for the central controller, and meanwhile, the central controller needs to continuously execute the work task responsible for the acquisition controller of the seismic instrument. The other seismic instruments except the first seismic instrument are unified as a second seismic instrument (or called slave seismic instrument), and the acquisition controller of the second seismic instrument only executes the work task which is responsible for the acquisition controller. In the following, a seismic data acquisition system in which a central controller and an acquisition controller are integrated into an acquisition controller of a first seismic apparatus will be taken as an example to describe how to perform corresponding seismic data acquisition by using an acquisition controller coupled to a second seismic apparatus in the seismic data acquisition system. The specific implementation process can comprise the following steps.

S1: receiving a preparation instruction by using an acquisition controller in the seismic data acquisition system, wherein the preparation instruction comprises a shot point pile number;

s2: determining the number of the shot point pile according to the preparation instruction;

s3: determining whether a target acquisition array of the second seismic instrument corresponding to the shot point pile number exists in the acquisition arrays of the second seismic instrument according to the shot point pile number, and sending a determination result of the second seismic instrument to a central controller;

s4: and receiving an acquisition instruction, and determining acquisition starting time according to the acquisition instruction, wherein the acquisition starting time is used for indicating the time for acquiring the seismic data by the target acquisition array of the first seismic instrument and/or the target acquisition array of the second seismic instrument.

In this embodiment, the above-mentioned acquisition controller applying the seismic data acquisition system receives a preparation instruction, where the preparation instruction includes a shot point stake number, and in a specific implementation, the acquisition controller may receive a preparation instruction sent by a first seismic instrument through a data communication module, where the preparation instruction includes a shot point stake number to be excited.

In this embodiment, the determining the number of the shot point stake according to the preparation instruction may include: the main control unit in the acquisition controller can analyze the preparation instruction to obtain the shot point stake number in the preparation instruction.

In this embodiment, the determining, according to the shot point stake number, whether a target collection array of the second seismic apparatus corresponding to the shot point stake number exists in the collection arrays of the second seismic apparatus, and sending a determination result of the second seismic apparatus to the central controller may include the following steps: the main control unit in the acquisition controller can determine the range of target acquisition arrangement corresponding to the shot point pile number through shot points preset in a data storage module in the acquisition controller and associated files of acquisition arrangement according to the shot point pile number; and searching the acquisition arrangement of the second seismic instrument by using a control interface module according to the range of the target acquisition arrangement so as to determine whether the target acquisition arrangement of the second seismic instrument corresponding to the shot point pile number exists in the acquisition arrangement of the second seismic instrument. If the target acquisition arrangement of the second seismic instrument exists, the range of the target acquisition arrangement of the second seismic instrument and the corresponding shot point stake number can be used as a second determination result. If the target acquisition arrangement of the second seismic apparatus is not present, confirmation information indicating that the target acquisition arrangement does not meet the requirements may be generated as a result of the determination of the second seismic apparatus. And after the determination result of the second seismic apparatus is generated, the main control unit sends the determination result of the second seismic apparatus to the central controller through the data communication module.

In this embodiment, the receiving of the acquisition instruction and the determining of the acquisition start time according to the acquisition instruction may include the following steps: the acquisition controller receives an acquisition instruction sent by the central controller through the data communication module, and the main control unit analyzes the acquisition instruction to determine acquisition starting time. And then if the target acquisition array of the second seismic instrument exists, the main control unit can control the second seismic instrument to call the corresponding target acquisition array of the second seismic instrument to acquire seismic data at the acquisition starting time through the control interface module. If the target acquisition arrangement of the second seismic instruments does not exist, the main control unit does not process the target acquisition arrangement after analyzing the acquisition starting time, and the main control unit can also control the corresponding second seismic instruments to not work at the acquisition starting time.

In an embodiment, after receiving the acquisition instruction and determining the acquisition start time according to the acquisition instruction, the method may further include: and controlling the second seismic instrument to acquire seismic data by using the target acquisition array of the second seismic instrument according to the acquisition starting time under the condition that the determined result of the second seismic instrument is that the target acquisition array of the second seismic instrument corresponding to the shot point pile number exists in the acquisition array of the second seismic instrument.

In one embodiment, in order to unify the time of the acquisition controller and the central controller, in specific implementation, the time of the acquisition controller of each seismic instrument can be unified by using satellite time service as a standard, so as to avoid acquisition errors caused by local time differences. Specifically, after the acquisition start time is determined according to the acquisition instruction, the method may further include the following steps: and acquiring reference time provided by the satellite through satellite time service through a satellite functional module, taking the reference time as standard time, and correcting the local time of the acquisition controller by using the reference time. Thus, the time of the acquisition controller can be adjusted according to a uniform time standard, so that the time of the acquisition controller is consistent with the time of the central controller. Of course, a preset time interval (for example, every hour) may also be set, and the acquisition controller may acquire the satellite time service as the reference time to correct the local time of the acquisition controller and the second seismic apparatus every preset time interval.

In one embodiment, in order to timely detect and eliminate the failure of the seismic data acquisition system, before receiving the preparation instruction, the method may further include the following steps: acquiring the state information of the acquisition arrangement of the second seismic instruments, and sending the state information of the acquisition arrangement of the second seismic instruments to the central controller, so that the acquisition control of the first seismic instruments can synthesize the acquisition arrangement state information of each seismic instrument, and the acquisition arrangement state of each seismic instrument is checked before acquiring seismic data, so that existing problems or faults can be found and processed in time.

In one embodiment, while the acquisition controller controls the target acquisition array of the second seismic instruments to acquire the seismic data according to the acquisition start time and the central controller controls the target acquisition array of the first seismic instruments to acquire the seismic data according to the acquisition start time, the acquisition controller and the central controller may respectively record the real time of acquiring the seismic data and the quality control parameters of the acquisition process, and summarize the real time and the quality control parameters of acquisition of each second seismic instrument and the real time and the quality control parameters of acquisition of the first seismic instrument to the central controller for analysis processing. The central controller can analyze the data to judge whether the executed seismic data acquisition meets the synchronization requirement or not, whether an error occurs in the acquisition process or not, whether the error is larger than an allowable error range or not and whether the seismic data acquisition needs to be carried out again or not. Thereby further improving the accuracy of the acquired seismic data.

In one embodiment, in addition to acquiring seismic data by the seismic data acquisition system, auxiliary data may also be acquired.

In one embodiment, after acquiring seismic data for each seismic instrument by the target acquisition spread of the first seismic instrument and/or the target acquisition spread of the second seismic instrument, the method may further comprise: according to the construction design requirements, the seismic data (which can be called single shot record) acquired by each seismic instrument is subjected to data processing, so that the seismic data from different seismic instruments can be accurately spliced and integrated after the data processing; and splicing and integrating the processed seismic data to obtain the seismic data meeting the requirements. The qualified seismic data may specifically be seismic data that is presented in the form of operation of a single seismic instrument. The data processing may specifically include: the format of the seismic data is uniform, the time of the seismic data is uniform, the error processing of the seismic data is performed, and the like.

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.

From the above description, it can be seen that in the seismic data acquisition method provided in the embodiment of the present application, an acquisition controller is respectively provided for each of a plurality of seismic instruments, and the acquisition controllers are centrally controlled by a central controller, and the central controller directly sends a uniform control instruction to each acquisition controller, thereby implementing centralized control over the plurality of seismic instruments. The method for acquiring the seismic data avoids the problem of poor channel-carrying capacity caused by the limited processing capacity of a single acquisition controller on one hand, and can ensure the synchronism of a plurality of different seismic instruments when acquiring the multi-channel seismic data on the other hand, thereby solving the technical problems of weak channel-carrying capacity and poor synchronism in the existing method and achieving the technical effect of efficiently and accurately controlling a large number of seismic instruments to synchronously acquire large-scale seismic data; and the satellite function module is arranged in the acquisition controller, so that the local time of the acquisition controller is acquired and corrected by using the reference time, errors caused by time difference among different acquisition controllers are avoided, the synchronism in the seismic data acquisition process is improved, and the accuracy of the acquired seismic data is improved.

The embodiment of the present application further provides an electronic device, which may specifically refer to fig. 5, which is a schematic structural diagram of an electronic device based on the seismic data acquisition method provided in the embodiment of the present application, and the electronic device may specifically include an input device 51, a processor 52, and a memory 53. The input device 51 may be specifically configured to input a shot point stake number. The processor 52 may be specifically configured to invoke a central controller in the seismic data acquisition system to send a preparation instruction to a plurality of acquisition controllers, where the preparation instruction includes a shot point stake number; receiving a determination result of a seismic instrument, and sending acquisition instructions to the plurality of acquisition controllers according to the determination result of the seismic instrument, wherein the acquisition instructions comprise acquisition starting time, the determination result of the seismic instrument is used for representing whether a target acquisition array corresponding to the shot point pile number exists in acquisition arrays of the seismic instrument coupled with the acquisition controllers, and the acquisition starting time is used for indicating the acquisition controllers to control the time for the seismic instrument with the target acquisition array to acquire seismic data by using the target acquisition array. The memory 53 may be specifically configured to store the shot stake number input by the input device 51 and the intermediate data generated by the processor 52.

In this embodiment, the input device may be one of the main apparatuses for information exchange between a user and a computer system. The input device may include a keyboard, a mouse, a camera, a scanner, a light pen, a handwriting input board, a voice input device, etc.; the input device is used to input raw data and a program for processing the data into the computer. The input device can also acquire and receive data transmitted by other modules, units and devices. The processor may be implemented in any suitable way. For example, the processor may take the form of, for example, a microprocessor or processor and a computer-readable medium that stores computer-readable program code (e.g., software or firmware) executable by the (micro) processor, logic gates, switches, an Application Specific Integrated Circuit (ASIC), a programmable logic controller, an embedded microcontroller, and so forth. The memory may in particular be a memory device used in modern information technology for storing information. The memory may include multiple levels, and in a digital system, the memory may be any memory as long as it can store binary data; in an integrated circuit, a circuit without a physical form and with a storage function is also called a memory, such as a RAM, a FIFO and the like; in the system, the storage device in physical form is also called a memory, such as a memory bank, a TF card and the like.

In this embodiment, the functions and effects specifically realized by the electronic device can be explained by comparing with other embodiments, and are not described herein again.

There is also provided in an embodiment of the present application a computer storage medium based seismic data acquisition method, the computer storage medium storing computer program instructions that, when executed, implement: calling a central controller in the seismic data acquisition system to send a preparation instruction to a plurality of acquisition controllers, wherein the preparation instruction comprises a shot point pile number; receiving a determination result of a seismic instrument, and sending acquisition instructions to the plurality of acquisition controllers according to the determination result of the seismic instrument, wherein the acquisition instructions comprise acquisition starting time, the determination result of the seismic instrument is used for representing whether a target acquisition array corresponding to the shot point pile number exists in acquisition arrays of the seismic instrument coupled with the acquisition controllers, and the acquisition starting time is used for indicating the acquisition controllers to control the time for the seismic instrument with the target acquisition array to acquire seismic data by using the target acquisition array.

In the present embodiment, the storage medium includes, but is not limited to, a Random Access Memory (RAM), a Read-Only Memory (ROM), a Cache (Cache), a Hard disk (HDD), or a Memory Card (Memory Card). The memory may be used to store computer program instructions. The network communication unit may be an interface for performing network connection communication, which is set in accordance with a standard prescribed by a communication protocol.

In this embodiment, the functions and effects specifically realized by the program instructions stored in the computer storage medium can be explained by comparing with other embodiments, and are not described herein again.

In a specific implementation scenario example, the seismic data acquisition system and method provided by the embodiment of the application are applied to control a plurality of wired seismic instruments to acquire millions of channels of seismic data in a certain target area. The detailed implementation process can be performed with reference to the following contents in conjunction with the schematic diagram of fig. 6, which is used for acquiring seismic data by applying the seismic data acquisition system and method provided by the embodiment of the present application in one scenario example.

In the present embodiment, a seismic data acquisition system may be configured by providing an acquisition controller (which may also be referred to as a seismic data acquisition control device) in each seismic equipment host (i.e., seismic equipment). The acquisition controller can be specifically used for being connected with each seismic instrument host participating in acquisition, and further can send and/or receive corresponding instruction information with the main seismic instrument host according to conditions so as to control each seismic instrument to synchronously acquire seismic data according to preset parameters according to appointed time (namely acquisition starting time), and then feeds back actual acquisition starting time and other related quality control parameters of each seismic instrument to the acquisition controller (namely a central controller) connected with the main seismic instrument host (namely a first seismic instrument) so as to be convenient for subsequent analysis and processing.

The acquisition controller used may specifically refer to fig. 7, which is a schematic structural diagram of the acquisition controller used when the seismic data acquisition system and method provided in the embodiment of the present application are applied in one scenario example. The acquisition controller may specifically include: the system comprises a main control unit 100, an information display module 101, a parameter setting module 102, a control interface module 103, a satellite function module 104, a data communication module 105, a data storage module 106 and a power supply module 107. The main control unit 100 is a core component that can be understood as the whole acquisition controller, and is connected with other component modules to coordinate the work of each component module; the information display module 101 may be specifically configured to display information such as a satellite locking state, shot firing time, shot stake number, part of user configuration parameters, an acquisition arrangement state, acquisition start time, and the like, so as to facilitate information interaction with a user; the parameter setting module 102 may be specifically configured to obtain the arrangement state and provide a parameter configuration interface for a user, where the configurable parameters specifically include: the current acquisition controller and the ID number (identity number) of the corresponding seismic instrument, the type of the control instrument, a work task tag (master or slave) and the like; the control interface module 103 can be used for sending a to-be-excited shot point pile number and a control signal to the seismic instrument host according to an acquisition instruction sent by the host and a corresponding algorithm so as to control the seismic instrument to acquire seismic data; the satellite function module 104 may be specifically configured to receive a satellite signal, obtain coordinate information (longitude, latitude, altitude) and international standard time of a current position from the satellite signal, and provide coordinate and time information for the entire acquisition control device (that is, reference time may be obtained through satellite time service, and local time is corrected by using the reference time); the data communication module 105 is used for performing data interaction (data information such as an interactive instruction) with other acquisition control devices; the data storage module 106 is used for storing user configuration parameters, shot point excitation information, and associated files of shot points and arrangement; the power module 107 may be used to provide power for proper operation of the overall acquisition controller.

The system and the method for acquiring the seismic data are used for controlling a plurality of wired seismic instruments to acquire the seismic data of a million channels in a certain target area, and specifically comprise the following steps. For convenience of description, the following description will only use 3 seismic instruments as an example to describe how to apply the seismic data acquisition system to seismic data acquisition. For a seismic data acquisition system comprising a plurality of seismic instruments, reference may be made to the following manner.

Step 1: the method comprises the steps of sequentially starting a seismic instrument host 1, a seismic instrument host 2, a seismic instrument host 3, an acquisition controller 10, an acquisition controller 20 and an acquisition controller 30, and configuring corresponding ID numbers, control instrument types, working modes (master or slave) and other working parameters for the acquisition controllers of the seismic instruments through a parameter configuration module by using a computer. Specifically, as shown in fig. 6, the seismic apparatus host 1 is a main seismic apparatus (i.e., a first seismic apparatus), and the corresponding acquisition controller 10 is a main acquisition controller (i.e., a central controller); the seismic instrument host 2 is a slave seismic instrument (i.e., a second seismic instrument numbered 2), and the corresponding acquisition controller 20 is a slave acquisition controller (i.e., an acquisition controller numbered 2); the seismic equipment host 3 is a slave seismic equipment (i.e. the second seismic equipment numbered 3), and the corresponding acquisition controller is a slave acquisition controller (i.e. the acquisition controller numbered 3).

Step 2: the slave acquisition controller 20 and the slave acquisition controller 30 respectively acquire the status information of the acquisition array 21 and the acquisition array 31 through the control interface module, and send the status information of the acquisition array 21 and the acquisition array 31 to the master acquisition controller 10 according to a preset time interval.

And step 3: after receiving the state information of the acquisition array 21 and the acquisition array 31 sent from the acquisition controller 20 and the secondary acquisition controller 30, the primary acquisition controller 10 updates the corresponding information in the information display module, detects whether the acquisition array state of each seismic instrument is normal, and sends the state information of the acquisition array 11, the acquisition array 21 and the acquisition array 31 to the secondary acquisition controller 20 and the secondary acquisition controller 30.

And 4, step 4: the current acquisition spread status information is received from acquisition controller 20 and from acquisition controller 30 and updated at the display module in time to determine the acquisition spread status of other seismic instruments of the current seismic data acquisition system.

And 5: after the acquisition arrangement state can meet the acquisition requirement, the seismic instrument host sends information of the shot point pile number to be acquired to the main acquisition controller 10, and the main acquisition controller 10 can send the shot point pile number to be acquired (namely send a preparation instruction containing the shot point pile number) to the relevant slave acquisition controller 20 and/or the slave acquisition controller 30; and calculating the arrangement information (namely the acquisition arrangement range corresponding to the shot point pile number) needing to participate in acquisition according to the acquisition shot points.

Step 6: the corresponding shot point pile number to be collected is received and analyzed from the collection controller 20 and the collection controller 30.

And 7: the slave acquisition controller 20 and the slave acquisition controller 30 can determine whether the corresponding acquisition arrangements (i.e. the target acquisition arrangement of the second seismic instrument) exist in the seismic instrument host 2 and the seismic instrument host 3 according to the shot point stake numbers.

And 8: if the slave acquisition controller 20 and the slave acquisition controller 30 determine that the corresponding acquisition arrangement exists, they immediately transmit the acquisition start confirmation information (i.e., the determination result of the second seismic equipment) to the master control device 10.

And step 9: if the master acquisition controller 10 receives the confirmation start acquisition information of the

slave control modules

20 and 30 within the preset delay time, it feeds back a start acquisition instruction (i.e., acquisition instruction) including the start acquisition time (i.e., acquisition start time) to the master acquisition controller.

Step 10: the main acquisition controller 10 sends an acquisition starting signal to the seismic instrument host 1 at the acquisition starting time, and the seismic instrument host 1 sends an explosion starting instruction to a remote explosion system 12 connected with the seismic instrument host 1 after receiving the signal. The slave acquisition controller 20 and the slave acquisition controller 30 transmit acquisition start signals to the seismic equipment main unit 2 and the seismic equipment main unit 3, respectively, at the acquisition start time to control the corresponding seismic equipment main units to start seismic data acquisition.

Step 11: after the data acquisition of the current shot point to be excited is completed, the slave acquisition controller 20 and the slave acquisition controller 30 record the actual acquisition start time of the seismic data and send the actual acquisition start time to the master acquisition controller 10.

Step 12: the main acquisition controller 10 receives the actual acquisition start time of the slave acquisition controller 20 and the slave acquisition controller 30, calculates whether the acquisition requirements are met, for example, whether an error exists, whether the error is greater than an allowable error range, and displays the error through the display module.

Step 13: and (5) circularly executing the step 5 to the step 12 to finish the acquisition of the seismic data of all the shot points.

Step 14: after all shot points are excited and all seismic data are acquired, single shot records (namely the seismic data acquired by each seismic instrument) and related auxiliary data are output from the seismic instrument host participating in acquisition.

Step 15: according to the construction design requirements, special software is used for sorting the single shot records and auxiliary data output by the seismic instrument host, wherein the single shot records and the auxiliary data are uniform in format, uniform in time and the like. The single shot records collected by different seismic instrument hosts can be spliced and integrated to obtain seismic data and related auxiliary data displayed in a single instrument operation mode.

By combining the existing methods, the comparison shows that: the seismic data acquisition system and the method provided by the embodiment of the application can support the acquisition control of over 20 ten thousand extra-large-scale seismic data, solve the problem of poor channel carrying capacity of the existing seismic instrument and ensure the smooth implementation of various geophysical prospecting methods; in addition, by utilizing satellite time service and wireless communication technologies and adopting a mode of joint construction of a plurality of seismic instruments, the precision of the acquired seismic data can be ensured, meanwhile, the arrangement preparation time is shortened, and the production efficiency is improved.

Through the above example, it is verified that the seismic data acquisition system and method provided by the embodiment of the present application, respectively set an acquisition controller for each of a plurality of seismic instruments, and the acquisition controllers are centrally controlled by a central controller, and the central controller directly sends a uniform control instruction to each acquisition controller, thereby implementing centralized control of the plurality of seismic instruments. The method for acquiring the seismic data avoids the problem of poor channel-carrying capacity caused by the limited processing capacity of a single acquisition controller on one hand, and can ensure the synchronism of a plurality of different seismic instruments when acquiring the multi-channel seismic data on the other hand, thereby solving the technical problems of weak channel-carrying capacity and poor synchronism in the existing method and achieving the technical effect of efficiently and accurately controlling a large number of seismic instruments to synchronously acquire large-scale seismic data.

Although various specific embodiments are mentioned in the disclosure of the present application, the present application is not limited to the cases described in the industry standards or the examples, and the like, and some industry standards or the embodiments slightly modified based on the implementation described in the custom manner or the examples can also achieve the same, equivalent or similar, or the expected implementation effects after the modifications. Embodiments employing such modified or transformed data acquisition, processing, output, determination, etc., may still fall within the scope of alternative embodiments of the present application.

Although the present application provides method steps as described in an embodiment or flowchart, more or fewer steps may be included based on conventional or non-inventive means. 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 apparatus or client product in practice executes, it may execute sequentially or in parallel (e.g., in a parallel processor or multithreaded processing environment, or even in a distributed data processing environment) according to the embodiments or methods shown in the figures. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the presence of additional identical or equivalent elements in a process, method, article, or apparatus that comprises the recited elements is not excluded.

The devices or modules and the like explained in the above embodiments may be specifically implemented by a computer chip or an entity, or implemented by a product with certain functions. For convenience of description, the above devices are described as being divided into various modules by functions, and are described separately. Of course, in implementing the present application, the functions of each module may be implemented in one or more pieces of software and/or hardware, or a module that implements the same function may be implemented by a combination of a plurality of sub-modules, and the like. The above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is merely a logical division, and other divisions may be realized in practice, for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed.

Those skilled in the art will also appreciate that, in addition to implementing the controller as pure computer readable program code, the same functionality can be implemented by logically programming method steps such that the controller is in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Such a controller may therefore be considered as a hardware component, and the means included therein for performing the various functions may also be considered as a structure within the hardware component. Or even means for performing the functions may be regarded as being both a software module for performing the method and a structure within a hardware component.

The application 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, classes, etc. that perform particular tasks or implement particular abstract data types. The application 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.

From the above description of the embodiments, it is clear to those skilled in the art that the present application can be implemented by software plus necessary general hardware platform. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, or the like, and includes several instructions for enabling a computer device (which may be a personal computer, a mobile terminal, a server, or a network device) to execute the method according to the embodiments or some parts of the embodiments of the present application.

The embodiments in the present specification are described in a progressive manner, and the same or similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. The application is operational with numerous general purpose or special purpose computing system environments or configurations. For example: personal computers, server computers, hand-held or portable devices, tablet-type devices, multiprocessor systems, microprocessor-based systems, set top boxes, programmable electronic devices, network PCs, minicomputers, mainframe computers, distributed computing environments that include any of the above systems or devices, and the like.

While the present application has been described by way of examples, those of ordinary skill in the art will appreciate that there are numerous variations and permutations of the present application that do not depart from the spirit of the present application and that the appended embodiments are intended to include such variations and permutations without departing from the present application.

Claims

1. A seismic data acquisition system, comprising: the system comprises a central controller, a plurality of seismic instruments and a plurality of acquisition controllers, wherein each seismic instrument in the plurality of seismic instruments is coupled with one acquisition controller one by one, and the system comprises:

the acquisition controller is used for determining the shot point pile number according to the preparation instruction; determining whether a target acquisition array corresponding to the shot point pile number exists in acquisition arrays of seismic instruments coupled with the acquisition controller according to the shot point pile number to generate a determination result of the seismic instruments, and sending the determination result of the seismic instruments to the central controller;

the central controller is used for sending an acquisition instruction to the acquisition controller according to the determination result of the seismic instrument, wherein the acquisition instruction comprises acquisition starting time, and the acquisition starting time is the starting time for the acquisition controller to control the seismic instrument with the target acquisition array to acquire seismic data by using the target acquisition array;

the central controller and the acquisition controller comprise satellite function modules, and the satellite function modules are used for acquiring reference time through satellite time service and correcting the local time of the acquisition controller and the local time of the central controller by using the reference time.

2. The system of claim 1, wherein the central controller and the collection controller each further comprise a data communication module, and the central controller and the collection controller perform data interaction through the data communication modules.

3. The system of claim 1, wherein the central controller is integrated with one of the plurality of acquisition controllers.

4. A method of seismic data acquisition, comprising:

applying the central controller in a seismic data acquisition system of any of claims 1 to 3 to send preparation instructions to a plurality of acquisition controllers coupled to seismic instruments, the preparation instructions including shot pile numbers;

receiving a determination result of a seismic instrument, and sending acquisition instructions to the plurality of acquisition controllers according to the determination result of the seismic instrument, wherein the acquisition instructions comprise acquisition starting time, the determination result of the seismic instrument is used for representing whether a target acquisition array corresponding to the shot point pile number exists in acquisition arrays of the seismic instrument coupled with the acquisition controllers, and the acquisition starting time is the starting time for the acquisition controllers to control the seismic instrument with the target acquisition array to acquire seismic data by using the target acquisition array;

wherein, prior to sending acquisition instructions to the plurality of acquisition controllers based on the determination of the seismic instrument, the method further comprises:

and acquiring reference time through satellite time service, and correcting the local time of the central controller by using the reference time.

5. The method of claim 4, wherein prior to applying the central controller in the seismic data acquisition system to send preparation instructions to the plurality of acquisition controllers coupled to the seismic instruments, the method further comprises:

6. The method of claim 4, wherein sending acquisition instructions to the plurality of acquisition controllers based on the determination of the seismic instrument comprises:

determining whether the target acquisition arrangement of the seismic instrument is consistent with the range of the target acquisition arrangement according to the determination result of the seismic instrument, wherein the target acquisition arrangement corresponds to the shot point pile number;

7. The method of claim 6, wherein prior to sending the acquisition instructions to the plurality of acquisition controllers, the method further comprises:

acquiring the pre-excitation time of a shot point;

8. The method of claim 4, wherein after the central controller in the seismic data acquisition system is applied to send preparation instructions to a plurality of acquisition controllers coupled to the seismic instruments, the method further comprises, with the central controller integrated with one of the plurality of acquisition controllers:

9. A method of seismic data acquisition, comprising:

receiving a preparation instruction by an acquisition controller in the seismic data acquisition system according to any one of claims 1 to 3, wherein the preparation instruction comprises a shot pile number;

receiving an acquisition instruction, and determining acquisition starting time according to the acquisition instruction, wherein the acquisition starting time is the starting time for an acquisition controller to control seismic instruments with a target acquisition array to acquire seismic data by using the target acquisition array;

wherein, prior to determining an acquisition start time according to the acquisition instruction, the method further comprises: and acquiring reference time through satellite time service, and correcting the local time of the acquisition controller by using the reference time.

10. The method of claim 9, wherein after receiving an acquisition instruction and determining an acquisition start time based on the acquisition instruction, the method further comprises:

11. The method of claim 9, wherein determining from the shot point stake number whether a target acquisition spread corresponding to the shot point stake number exists among acquisition spreads of seismic instruments coupled to an acquisition controller comprises: