CN109100778B - Seismic exploration method and system - Google Patents
Seismic exploration method and system Download PDFInfo
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- CN109100778B CN109100778B CN201810716704.7A CN201810716704A CN109100778B CN 109100778 B CN109100778 B CN 109100778B CN 201810716704 A CN201810716704 A CN 201810716704A CN 109100778 B CN109100778 B CN 109100778B
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/02—Generating seismic energy
- G01V1/104—Generating seismic energy using explosive charges
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
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Abstract
The embodiment of the application provides a seismic exploration method and a seismic exploration system, wherein the method comprises the following steps: the first control device at the appointed shot point position confirms whether first explosion information broadcasted by a second control device in an appointed range is received currently; if not, broadcasting second explosion information to all second control devices within the specified range; after receiving confirmation information returned by all second control devices in the specified range, exciting the specified shot point when the set excitation time arrives; and broadcasting the shot point excitation information of the specified shot point to all second control devices in the specified range. The embodiment of the application can improve the efficiency and the quality of seismic exploration.
Description
Technical Field
The application relates to the technical field of geophysical exploration, in particular to a seismic exploration method and system.
Background
In the current field seismic exploration construction process, an encoder of a synchronous control system for controlling a well shot point excitation source needs to be connected with an instrument host, and time synchronization with the encoder is completed by means of analog radio signal transmission and pulse signals so as to ensure consistency of well shot point excitation time and instrument starting acquisition time. Wherein shot firing of all explosive groups is typically accomplished by an instrument operator operating through the seismic instrumentation mainframe.
With the increasing complexity of geological exploration targets and the increasing requirements on data acquisition precision, the number of field seismic data acquisition tracks and the number of excitation shots are increasing, and for example, exploration projects equipped with about 2 ten thousand acquisition devices are quite common at home and abroad at present. However, due to the low efficiency and error susceptibility of manual operations, the conventional seismic exploration method cannot meet the requirements of efficient and high-quality construction.
Disclosure of Invention
The embodiment of the application aims to provide a seismic exploration method and a seismic exploration system so as to improve the efficiency and quality of seismic exploration.
In order to achieve the above object, in one aspect, an embodiment of the present application provides a seismic exploration method, including:
the first control device at the appointed shot point position confirms whether first explosion information broadcasted by a second control device in an appointed range is received currently;
if not, broadcasting second explosion information to all second control devices within the specified range;
after receiving confirmation information returned by all second control devices in the specified range, exciting the specified shot point when the set excitation time arrives;
and broadcasting the shot point excitation information of the specified shot point to all second control devices in the specified range.
The seismic exploration method of the embodiment of the application further comprises the following steps:
and the first control device, all the second control devices and the seismic data acquisition system in the specified range use the same satellite time service system as a standard clock source in advance to carry out local clock calibration.
According to the seismic exploration method, the first detonation information and the second detonation information respectively comprise detonation group numbers, positions of shot points to be excited and excitation moments of the shot points to be excited.
Before the determining whether the first detonation information broadcasted by the second control device within the specified range is received currently, the seismic exploration method of the embodiment of the application further comprises the following steps:
and the first control device receives a satellite positioning signal, acquires the position of the specified shot point according to the satellite positioning signal, and converts the position of the specified shot point into a shot point stake number according to the pre-imported SPS file information.
According to the seismic exploration method, shot point excitation information comprises excitation time and an excitation state.
In another aspect, embodiments of the present application also provide a seismic exploration system, including a first control device and a plurality of second control devices within a specified range; the first control device comprises a handheld terminal and a source excitation control terminal located at the specified shot point position; wherein the content of the first and second substances,
the handheld terminal is used for confirming whether first explosion initiating information broadcasted by second control devices in a specified range is received or not at present, and if the first explosion initiating information is not received, the handheld terminal broadcasts second explosion initiating information to all the second control devices in the specified range; after receiving confirmation information returned by all second control devices within the specified range, sending an explosion starting instruction and a set excitation time to the source excitation control terminal, and exciting the specified shot point by the source excitation control terminal when the excitation time arrives; and receiving the shot point excitation information of the specified shot point provided by the source excitation control terminal, and broadcasting the shot point excitation information of the specified shot point to all second control devices in the specified range.
In the seismic exploration system of the embodiment of the application, the first control device, all the second control devices in the specified range and the seismic data acquisition system all use the same satellite time service system as a standard clock source in advance to carry out local clock calibration.
According to the seismic exploration system, the first explosion initiating information and the second explosion initiating information respectively comprise an explosion group number, a position of a shot point to be excited and an excitation moment of the shot point to be excited.
The seismic exploration system provided by the embodiment of the application is characterized in that the handheld terminal is further used for receiving a satellite positioning signal before confirming whether first explosion starting information broadcasted by a second control device in a specified range is received at present, acquiring the position of a specified shot point according to the satellite positioning signal, converting the position of the specified shot point into a shot point pile number according to pre-introduced SPS file information, and providing the shot point pile number for the source excitation control terminal.
According to the seismic exploration system, shot firing information comprises firing time and firing states.
According to the technical scheme provided by the embodiment of the application, the first control device located at the appointed shot point position of the embodiment of the application confirms whether the first explosion information broadcasted by the second control device in the appointed range is received currently; if not, broadcasting second explosion information to all second control devices within the specified range; after receiving confirmation information returned by all second control devices within the specified range, exciting the specified shot point when the set excitation time arrives;
the shot point excitation information of the appointed shot point is broadcasted to all second control devices in the appointed range, so that automatic excitation control of the vibroseis shot point is achieved, seismic exploration efficiency is greatly improved, and compared with the prior art, the quality problem caused by manual excitation control due to manual reasons such as misoperation is avoided.
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. In the drawings:
FIG. 1 is a schematic diagram of a first control device of a seismic survey system according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a source excitation control terminal of a first control device according to an embodiment of the present disclosure;
FIG. 3 is a flow chart of a method of seismic surveying in an embodiment of the application;
fig. 4 is a schematic structural diagram of a handheld terminal of a first control device in an embodiment of the present application.
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. For example, in the following description, forming the second component over the first component may include embodiments in which the first and second components are formed in direct contact, embodiments in which the first and second components are formed in non-direct contact (i.e., additional components may be included between the first and second components), and so on.
Also, for ease of description, some embodiments of the present application may use spatially relative terms such as "above …," "below …," "top," "below," etc., to describe the relationship of one element or component to another (or other) element or component as illustrated in the various figures of the embodiments. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or components described as "below" or "beneath" other elements or components would then be oriented "above" or "over" the other elements or components.
The seismic survey system of embodiments of the application may include a first control device and a plurality of second control devices within a specified range. The first control device and the second control device may be both shot firing control devices, and for convenience of description, the first control device and the second control device are used as a distinction in this specification.
Referring to fig. 1, the first control means may include a hand-held terminal 10 and a source firing control terminal 20 located at the designated shot location. The handheld terminal 10 may be configured to determine whether first explosion information broadcasted by second control devices within a specified range is currently received, and if not, broadcast second explosion information to all second control devices within the specified range; after receiving the confirmation information returned by all the second control devices within the specified range, sending an explosion initiating instruction and a set excitation time to the source excitation control terminal 20, and exciting the specified shot point by the source excitation control terminal 20 when the excitation time arrives; receiving the shot point firing information of the specified shot point provided by the source firing control terminal 20, and broadcasting the shot point firing information of the specified shot point to all the second control devices within the specified range. Therefore, the seismic exploration system of the embodiment of the application realizes automatic excitation control of the controllable seismic source shot point, greatly improves the seismic exploration efficiency, and avoids the quality problem caused by artificial reasons such as misoperation in manual excitation control compared with the prior art.
In the prior art, time synchronization between shot firing and seismic data acquisition is typically achieved through real-time radio communication. When seismic data are acquired under the condition of a complex earth surface, the real-time radio station communication is easily limited due to the problems of interference and the like, so that the two links of data acquisition and shot point excitation cannot be synchronous, and even the shot point cannot be normally exploded, the seismic exploration production efficiency and the acquired data quality are influenced. In order to solve this problem, in an embodiment of the present application, the first control device, all the second control devices within the specified range, and the seismic data acquisition system may use the same satellite time service system as a standard clock source in advance to perform local clock calibration. Compared with real-time radio station communication, the satellite time service system is wide in signal coverage and not prone to earth surface interference, so that the same satellite time service system is used as a standard clock source to conduct local clock calibration, and time synchronization of data acquisition and shot point excitation can be well achieved. In an embodiment of the application, before the detonation of the shot point, the seismic data acquisition system can start a continuous acquisition process according to needs, and simultaneously marks the acquired seismic data with timestamp information accurate to microsecond level and then stores the marked seismic data in corresponding storage equipment.
In an embodiment of the present application, the handheld terminal 10 may be further configured to receive a satellite positioning signal before determining whether the first explosion initiating information broadcasted by the second control device within the specified range is received currently, acquire the position of the specified shot point according to the satellite positioning signal, convert the position of the specified shot point into a shot point stake number according to the SPS file information imported in advance, and provide the shot point stake number to the source excitation control terminal 20.
In an exemplary embodiment of the present application, the first detonation information and the second detonation information may each include a detonation group number, a position of a to-be-detonated shot point, an excitation time of the to-be-detonated shot point, and the like. The shot firing information may include firing time and firing status, etc.
In an embodiment of the present application, the handheld terminal 10 and the source excitation control terminal 20 may communicate with each other in a short-distance communication manner. The short-distance communication mode is a short-distance wireless communication mode for realizing wireless transmission in a low-power consumption mode, such as Bluetooth, WiFi, ZigBee and the like.
In one embodiment of the present application, the first control device and the second control device can communicate with each other by remote communication. The remote communication mode refers to a wireless communication mode with the communication capacity of more than 10km by means of satellites, public mobile communication networks or other communication modes. Preferably, when operating in urban areas or other densely populated areas, the remote communication mode can use commercial networks such as china mobile, china unicom or chinese telecommunications to realize communication among all explosive groups in the entire work area. When the remote or unmanned area works, the communication among all explosion groups in the whole work area can be realized by adopting a satellite-based communication mode and the like in a remote communication mode in consideration of the complexity of field construction ground surface conditions.
As shown in fig. 2, in an embodiment of the present application, the source fire control terminal 20 may include a micro control processing unit 200, a display function module 201, a data storage module 202, a clock module 203, a data communication interface module 204, a power management module 205, and a fire control signal interface module 206. Wherein:
the micro-control processing module 200 is connected with signals of other modules for coordinating and controlling the work of each component.
The display function module 201 may be implemented by a touch screen, for example, and is used for inputting and/or displaying information such as a navigation state, a shot point excited UTC time, and a remark.
The data storage module 202 may be configured to store information including fired shot information.
The clock module 203 can be used for receiving time service signals from satellite time service systems such as a GPS system, a Beidou system and the like so as to provide time information for the whole control device.
The data communication interface module 204 may be implemented by using, for example, an ESP8266 chip, and may communicate with the handheld terminal 10 in a wireless communication manner such as a WiFi communication manner, for example, receive a remote start/stop control instruction from the handheld terminal 10, information on a position (stake number) of a current shot point to be excited, and may send information such as excitation time and quality control data of the shot point that has been excited to the handheld terminal 10.
The power management module 205 can convert the input dc voltage, such as 12V, into the required dc voltage by voltage conditioning, so as to provide the necessary working voltage for each part in the whole control device. In addition, when the vibroseis is a detonator, the power management module 205 may also provide an energy supply to the energy storage device of the detonator activation module.
The excitation control signal interface module 206 may be connected to the Shotpro II/Shotpro explosive machine and the like through a dedicated data interface, and may also output an excitation control signal to the Shotpro II/Shotpro explosive machine to detonate a shot point according to a received acquisition start-stop control instruction in combination with a preset time slot control parameter.
In another embodiment of the application, further, each explosion group participating in the operation can analyze and count the received shot point excitation information, and can share the production progress condition of other explosion groups through the display function module 201, so that the efficiency of gun leakage or gun repair during construction operation is improved.
Referring to fig. 3, with a first control device as an execution subject, the seismic exploration method of the embodiment of the application may include the steps of:
s301, the first control device located at the appointed shot point position confirms whether the first explosion information broadcasted by the second control device within the appointed range is received currently.
In the embodiment of the application, the mutual interference caused by the collision of shot point excitation can be prevented by judging whether the second control device broadcast in the specified range is received or not, so that the data acquisition of the earthquake acquisition system is facilitated.
S302, if the second explosion information is not received, the second explosion information is broadcasted to all second control devices within the specified range.
In the embodiment of the present application, the purpose of broadcasting the second explosion information to all the second control devices within the specified range is to: the purpose is to indicate that the initiator of the second detonation information is ready for shot firing by broadcasting the second detonation information and solicit feedback from all second control devices within a specified range. In an embodiment of the application, if the first explosion information broadcasted by the second control device within the specified range is currently received, the confirmation information is fed back to the second control device.
And S303, after receiving the confirmation information returned by all the second control devices in the specified range, exciting the specified shot point when the set excitation time arrives.
In this embodiment of the present application, the receiving in this step may refer to receiving within a preset waiting time after the first explosion initiating message is broadcast. If the confirmation information returned by one or some second control devices is not received, the processing can be carried out according to a preset strategy. For example, the device can be communicated with a second control device which does not return confirmation information separately to confirm the reason; or the second control device which does not return the confirmation information is confirmed as a failure, and the second control device is ignored. And so on.
S304, broadcasting the shot point excitation information of the specified shot point to all second control devices in the specified range.
In the embodiment of the application, all the second control devices in the specified range can be informed that the shot point excitation is completed by broadcasting the shot point excitation information of the specified shot point.
Referring to fig. 4, in an embodiment of the present application, a handheld terminal of the embodiment of the present application may include a memory, a processor, and a computer program stored on the memory, and when the computer program is executed by the processor, the computer program performs the following steps:
confirming whether first explosion information broadcasted by a second control device in a specified range is received currently;
if not, broadcasting second explosion information to all second control devices within the specified range;
after receiving confirmation information returned by all second control devices within the specified range, sending an explosion starting instruction and a set excitation time to the source excitation control terminal, and exciting the specified shot point by the source excitation control terminal when the excitation time arrives;
and receiving the shot point excitation information of the specified shot point provided by the source excitation control terminal, and broadcasting the shot point excitation information of the specified shot point to all second control devices in the specified range.
While the process flows described above include operations that occur in a particular order, it should be appreciated that the processes may include more or less operations that are performed sequentially or in parallel (e.g., using parallel processors or a multi-threaded environment).
For convenience of description, the above devices are described as being divided into various units by function, 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.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, 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, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
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, 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.
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.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (8)
1. A method of seismic exploration, comprising:
the first control device at the appointed shot point position confirms whether first explosion information broadcasted by a second control device in an appointed range is received currently;
if not, broadcasting second explosion information to all second control devices within the specified range;
after receiving confirmation information returned by all second control devices in the specified range, exciting the specified shot point when the set excitation time arrives;
broadcasting shot point excitation information of the specified shot point to all second control devices within the specified range; before the step of confirming whether the first explosion information broadcasted by the second control device within the specified range is received currently, the method further comprises the following steps:
and the first control device receives a satellite positioning signal, acquires the position of the specified shot point according to the satellite positioning signal, and converts the position of the specified shot point into a shot point stake number according to the pre-imported SPS file information.
2. The seismic method of claim 1, further comprising:
and the first control device, all the second control devices in the specified range and the seismic data acquisition system all utilize the same satellite time service system as a standard clock source in advance to carry out local clock calibration.
3. The seismic method of claim 1, wherein the first detonation information and the second detonation information each include a detonation group number, a location of a shot to be fired, and a firing time of the shot to be fired.
4. The seismic method of claim 1, wherein the shot firing information comprises firing time and firing state.
5. A seismic survey system comprising a first control device and a plurality of second control devices within a specified range; the first control device comprises a handheld terminal and a source excitation control terminal located at a specified shot point position; wherein the content of the first and second substances,
the handheld terminal is used for confirming whether first explosion initiating information broadcasted by second control devices in a specified range is received or not at present, and if the first explosion initiating information is not received, the handheld terminal broadcasts second explosion initiating information to all the second control devices in the specified range; after receiving confirmation information returned by all second control devices within the specified range, sending an explosion starting instruction and a set excitation time to the source excitation control terminal, and exciting the specified shot point by the source excitation control terminal when the excitation time arrives; receiving shot point excitation information of the specified shot point provided by the source excitation control terminal, and broadcasting the shot point excitation information of the specified shot point to all second control devices in the specified range; the handheld terminal is further used for receiving a satellite positioning signal before confirming whether first explosion starting information broadcasted by a second control device within a specified range is received currently, acquiring the position of the specified shot point according to the satellite positioning signal, converting the position of the specified shot point into a shot point pile number according to pre-imported SPS file information, and providing the shot point pile number for the source excitation control terminal.
6. A seismic surveying arrangement as claimed in claim 5 wherein the first control means, all second control means within the specified range and the seismic data acquisition system are pre-calibrated locally using the same satellite time service system as a standard clock source.
7. The seismic survey system of claim 5, wherein the first detonation information and the second detonation information each include a detonation group number, a location of a shot to be fired, and a firing time of a shot to be fired.
8. The seismic survey system of claim 5, wherein the shot firing information includes firing time and firing state.
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| CN111474573B (en) * | 2019-01-23 | 2023-04-07 | 中国石油天然气集团有限公司 | Seismic source excitation control system, method and device for seismic exploration |
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| US7028807B2 (en) * | 2003-08-26 | 2006-04-18 | Bae Systems Advanced Technologies, Inc. | Non-explosive acoustic source |
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