CN112051608A - Multi-path micro-seismic data real-time combination method and storage medium - Google Patents
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Abstract
The invention discloses a real-time combination method of multi-channel microseism data and a storage medium. The real-time combination method of the multi-path microseism data comprises the following steps: acquiring parameters required by microseism data combination; automatically scanning the multi-path micro-seismic data files acquired by the acquisition cards based on parameters so as to arrange the multi-path micro-seismic data files into micro-seismic data files respectively corresponding to the acquisition cards; traversing and combining the micro-seismic data files corresponding to the acquisition cards in real time based on the parameters to obtain combined micro-seismic data files; and processing the merged microseism data file into an output file with a standard format and storing the output file into an output data directory. The multi-channel microseism data real-time combination method and the storage medium of the embodiment of the invention can generate the combined data file in real time, provide data support for professional processing software in real time and meet the requirement of monitoring the microseism in real time.
Description
Technical Field
The invention belongs to the technical field of microseism data processing, and particularly relates to a real-time multi-channel microseism data merging method and a storage medium.
Background
The microseism monitoring technology is widely applied to exploration and development of unconventional oil gas such as shale gas, coal bed gas and the like. By positioning the position of a microseism seismic source caused by fracturing, the method can help engineers to dynamically know the extension condition of the underground fracture in the fracturing process, and is helpful for reservoir developers to optimize fracturing construction design, adjust development and well pattern deployment. The microseism monitoring technology provides important technical support for unconventional oil and gas development.
The microseism monitoring technology can realize accurate and real-time positioning of the position of a microseism seismic source. The seismic source location is to collect seismic signals generated by reservoir rock fracture by using a plurality of detectors, determine the location and the seismic time of the seismic source, and further determine the extending direction and the extending length of the fracture. The microseism monitoring technology plays an important role in the fracturing process, the microseism monitoring technology is used for monitoring the fracture change in real time, engineering personnel are helped to dynamically master the extension condition of underground fractures, and a reference basis is provided for fracturing construction optimization. For the application requirement, data acquired by each detector needs to be quickly and continuously transmitted to professional processing software for processing, so that the microseism data can be analyzed in real time.
However, in practical applications, due to the limitation of hardware conditions and observation systems, several related detectors often form a path of data and independently store the path of data into a path of data file, and when micro-seismic monitoring is performed, multiple paths of data files exist, and there may be a certain time difference between the paths of data files due to hardware delay. Professional processing software cannot directly process the multi-channel data files, and real-time monitoring of the micro-seismic data is influenced. Therefore, it is necessary to provide a real-time merging method for multi-channel data of microseism monitoring, which merges and converts original multi-channel data files into a standard format that can be used by professional processing software in real time, so as to meet the requirements of microseism real-time monitoring.
Disclosure of Invention
One of the technical problems to be solved by the invention is how to provide a multi-channel micro-seismic data real-time combination method capable of monitoring micro-seismic data in real time.
In order to solve the above technical problem, an embodiment of the present application first provides a method for merging multiple paths of micro-seismic data in real time, including:
acquiring parameters required by microseism data combination, wherein the parameters comprise information of a plurality of acquisition cards, the number of detectors connected with each acquisition card, sampling intervals, the length of a combination time window, an input data directory and an output data directory;
a scanning step, wherein the multi-path micro-seismic data files acquired by the acquisition cards are automatically scanned based on the parameters so as to be arranged into micro-seismic data files respectively corresponding to the acquisition cards;
a merging step, based on the parameters, traversing and merging the micro-seismic data files corresponding to the acquisition cards in real time to obtain merged micro-seismic data files;
and an output step, namely processing the merged microseism data file into a file with a standard format and storing the file into the output data directory.
Preferably, the method further comprises:
and saving the parameters as parameter files for the scanning step, the combining step and the outputting step.
Preferably, the automatically scanning the multiple paths of micro-seismic data files acquired by the acquisition cards based on the parameters to sort the multiple paths of micro-seismic data files into micro-seismic data files corresponding to the acquisition cards respectively includes:
obtaining a current file list according to the input data directory;
based on the information of the acquisition cards, sorting the current file list into file lists respectively corresponding to the acquisition cards;
repeating the above two steps at fixed time intervals.
Preferably, the file name of the multi-path microseism data file comprises the information of the acquisition card;
based on the information of the acquisition cards, sorting the current file list into file lists respectively corresponding to the acquisition cards, including:
and sorting the multi-channel microseism data files in the current file list into file lists respectively corresponding to the acquisition cards according to file names.
Preferably, traversing and combining the micro-seismic data files corresponding to the acquisition cards in real time based on the parameters to obtain combined micro-seismic data files, and the method comprises the following steps:
traversing all the microseism data files and determining the final time;
determining a merging time window based on the merging time window length;
judging whether the merging time window exceeds the final time or not, and if so, waiting for updating of the microseism data file; if not, merging the microseism data files matched with the merging time window, and sliding the merging time window downwards to form a new merging time window;
and repeating the judging steps based on the new merging time window.
Preferably, determining a merging time window based on the merging time window length comprises:
traversing all the microseism data files and determining the starting time;
determining an initial merging time window according to the starting time and the merging time window length;
sliding the merged time window down to form a new merged time window, comprising:
and determining a new merging time window according to the ending time of the merging time window and the length of the merging time window.
Preferably, if the merging time window does not exceed the end time, merging the micro-seismic data files matched with the merging time window, including:
if the merging time window does not exceed the final time, distributing the cache space of the merging time window;
and filling the data with the time stamp within the time of the merging time window into the cache space according to the time stamp of the data in the micro-seismic data file and the time of the merging time window.
Preferably, if the merging time window does not exceed the end time, merging the micro-seismic data files matched with the merging time window, further comprising:
and managing the cache space of the merging time window according to the time stamp sequence of the sampling interval in the time of the merging time window.
Preferably, the output files in a standard format include files in the SEGY format or files in the SEGD format.
The embodiment of the invention also discloses a storage medium which stores the program of the method.
Compared with the prior art, one or more embodiments in the above scheme can have the following advantages or beneficial effects:
acquiring parameters required by microseism data combination for subsequent steps, automatically scanning multi-channel microseism data files in real time and monitoring updating of the multi-channel microseism data files; traversing and combining the micro-seismic data files corresponding to the acquisition cards in real time to obtain combined micro-seismic data files; and processing the merged micro-seismic data file into an output file with a standard format and storing the output file into the output data directory to obtain the merged data file in real time, so that subsequent professional processing software can directly process the micro-seismic data conveniently, data support is provided for the professional processing software in real time, and the requirement of monitoring the micro-seismic in real time is met.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the technology or prior art of the present application and are incorporated in and constitute a part of this specification. The drawings expressing the embodiments of the present application are used for explaining the technical solutions of the present application, and should not be construed as limiting the technical solutions of the present application.
FIG. 1 is a schematic flow diagram of a method for real-time consolidation of multi-path microseismic data according to one embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method for real-time merging of multi-path microseismic data according to another embodiment of the invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be provided with reference to the accompanying drawings and examples, so that how to apply the technical means to solve the technical problems and achieve the corresponding technical effects can be fully understood and implemented. The embodiments and the features of the embodiments can be combined without conflict, and the technical solutions formed are all within the scope of the present invention.
Acquiring parameters required by microseism data combination, wherein the parameters comprise information of a plurality of acquisition cards, the number of detectors connected with each acquisition card, sampling intervals, the length of a combination time window, an input data directory and an output data directory so as to be used in the subsequent steps; automatically scanning the multi-path micro-seismic data files acquired by the acquisition cards based on the parameters so as to arrange the multi-path micro-seismic data files into micro-seismic data files respectively corresponding to the acquisition cards, automatically scanning the multi-path micro-seismic data in real time and monitoring the updating of the multi-path micro-seismic data; traversing and combining the micro-seismic data files corresponding to the acquisition cards in real time based on the parameters to obtain combined micro-seismic data files; and processing the merged microseism data file into an output file with a standard format and storing the output file in the output data directory, so that subsequent professional processing software can directly process the microseism data conveniently. By the real-time combination method of the multi-path micro-seismic data, the multi-path micro-seismic data can be constantly combined in real time, data support is provided for professional processing software in real time, and the requirement of real-time monitoring of the micro-seismic is met.
The invention is further illustrated by the following specific examples.
As shown in fig. 1, a method for merging multiple micro-seismic data in real time according to an embodiment of the present invention includes:
and S1, acquiring parameters required by microseism data combination, wherein the parameters comprise information of a plurality of acquisition cards, the number of detectors connected with each acquisition card, sampling intervals, the length of a combination time window, an input data directory and an output data directory. Alternatively, the parameters in step S1 may be saved as a parameter file for use in the following scanning step, merging step, and outputting step.
According to the conditions of different receiving hardware, one acquisition card can be connected with 4-8 detectors, and the data acquired by one acquisition card can form one path of data. And generating a data file of the data at intervals according to the set parameters. For example, 24 detectors are used in the observation system, each acquisition card is connected with 8 detectors, 3 acquisition cards are required, and three paths of data are formed by 3 acquisition cards. Each path of data comprises a plurality of data files. The collection hardware device will store the received three-way data with the date as the directory name, for example, if the collection occurs at 2019.01.01, the 2019-01-01 directory will be automatically created, and as the collection proceeds, three-way data, including multiple data files for each way of data, will be stored under the directory.
And S2, automatically scanning the multi-channel micro-seismic data files acquired by the acquisition cards based on the parameters, so as to arrange the multi-channel micro-seismic data files into micro-seismic data files respectively corresponding to the acquisition cards.
Optionally, the current file list is obtained according to the input data directory, and the current file list includes a plurality of data files of the multi-channel data. For example, three paths of data are included, and each path of data has 3 data files. To automatically scan the incoming data directory to automatically obtain dynamically added data files, rather than manually adding data files, a current list of files under the incoming data directory (including date information) may be obtained using a directory manager provided in the generic programming framework Qt (C + +).
And based on the information of the acquisition cards, sorting the current file list into file lists respectively corresponding to the acquisition cards. For example, the file name of the multi-path microseism data file comprises the information of the acquisition card; based on the information of a plurality of acquisition cards, the method for sorting the current file list into file lists respectively corresponding to the plurality of acquisition cards comprises the following steps: and sorting the multi-channel microseism data files in the current file list into file lists respectively corresponding to the acquisition cards according to file names.
The file name of the data file contains the information of the acquisition card, and the data files in different paths in the current file list can be separated according to different acquisition cards according to the naming rule of the data file and the ID (number) of the acquisition card and managed by a list corresponding to the acquisition card. Repeating the above two steps at fixed time intervals. The current file list may be obtained and sorted at regular intervals using a timer provided in the general programming framework Qt. Thus, with the automatic scanning of the input file directory, the data files in different paths can be dynamically added into the file list corresponding to the acquisition card according to the time sequence for the merging step.
And S3, a merging step, wherein the micro-seismic data files corresponding to the acquisition cards are traversed and merged in real time based on the parameters to obtain merged micro-seismic data files. On the basis of automatically scanning multi-channel micro-seismic data acquired by a plurality of acquisition cards to obtain a current file list, combining micro-seismic data files corresponding to the plurality of acquisition cards in real time according to rules.
Optionally, the microseismic data file is traversed to determine an end time. The start time (in milliseconds) and the end time (in milliseconds) of all data are determined by traversing the file list corresponding to all acquisition cards. A combining time window is determined based on the combining time window length. At the beginning of merging the microseismic data files, the initial merging window may be obtained by adding the start time to the length of the merging window (which may be in milliseconds). During the merging process, the initial merging time window slides downwards at certain time intervals. Judging whether the merging time window exceeds the final time, if so, waiting for updating the microseism data file, namely waiting for executing a scanning step and waiting for updating the file list corresponding to all the acquisition cards; and if not, merging the micro-seismic data files matched with the merging time window, and sliding the merging time window downwards to form a new merging time window. The merging time window is slid down, which may be a new merging time window formed by adding the current end time (the end time of the merging time window) to the length of the merging time window. And repeating the judging steps based on the new merging time window. Judging whether the new merging time window exceeds the end time, if so, waiting for updating of the microseism data file, namely waiting for executing a scanning step and waiting for updating of a file list corresponding to all the acquisition cards; if not, combining the micro-seismic data files matched with the new combining time window, forming a new combining time window again, and continuing the judging step, thereby completing the real-time combining of the micro-seismic data files.
Optionally, if the merging time window does not exceed the end time, merging the micro-seismic data files matched with the merging time window, including: if the merging time window does not exceed the final time, distributing the cache space of the merging time window; and filling the data with the timestamp within the time of the merging time window into a cache space according to the timestamp of the data in the micro-seismic data file and the time of the merging time window.
If the merging time window does not exceed the final time, the cache space of the merging time window is allocated, the cache space of the merging time window is managed according to the time stamp sequence of the sampling interval within the time of the merging time window, then the file lists corresponding to all the acquisition cards are traversed, if a certain data file of a certain acquisition card is intersected with the merging time window, the data corresponding to the time stamp in the data file is filled into a proper position in the cache space until the file lists corresponding to all the acquisition cards are traversed, and therefore filling of the cache space of the merging time window is completed.
And S4, an output step, namely processing the merged microseism data file into an output file with a standard format and storing the output file into an output data directory. Specifically, the data in the filled cache space may be converted into standard data, and a data file in a standard format may be generated according to the merging time window information. The output file in the standard format comprises a file in the SEGY format or a file in the SEGD format.
With the progress of microseism monitoring, combined data files are continuously generated in real time and are provided for professional processing software for use, basic data support is provided for the professional processing software to perform real-time processing from the source, the guiding effect of microseism monitoring on actual production is guaranteed, and unconventional oil and gas development service is provided.
Referring to fig. 2, a method for merging multi-channel microseismic data in real time according to an embodiment of the present invention includes:
acquiring merging parameters, wherein the merging parameters comprise information of a plurality of acquisition cards, the number of detectors connected with each acquisition card, sampling intervals, merging time window lengths, input data catalogues and output data catalogues;
the method comprises the following steps of automatically scanning a file directory, wherein the file directory refers to an input data directory which comprises a plurality of data files of multi-channel data, and after automatic scanning, a current file list in the input data directory can be arranged into file lists corresponding to a plurality of acquisition cards respectively;
whether the file list is updated or not can be known by acquiring the file lists corresponding to the acquisition cards at regular intervals;
if yes, entering a merging step, and if not, waiting and returning to the automatic scanning step of the file directory;
the merging step comprises:
calculating a time range and a current merging time window, wherein the time range comprises the starting time and the ending time of the file lists corresponding to all the acquisition cards, and the method for calculating the current merging time window can refer to the above embodiment;
whether the merging time window exceeds the final time or not, wherein in the step, the merging time window refers to the current merging time window;
if yes, waiting, and returning to the steps of calculating the time range and combining the time windows currently;
if not, combining the multi-channel data in real time, outputting the combined file, sliding the combining time window downwards, and returning to the step of calculating the time range and the current combining time window, wherein the method for combining the multi-channel data and outputting the combined file can refer to the above embodiment.
The embodiment of the invention also discloses a storage medium which stores a program for executing any one of the methods. Wherein, the procedure includes: : acquiring parameters required by microseism data combination, wherein the parameters comprise information of a plurality of acquisition cards, the number of detectors connected with each acquisition card, sampling intervals, the length of a combination time window, an input data directory and an output data directory; automatically scanning the multi-path micro-seismic data files acquired by the acquisition cards based on the parameters so as to arrange the multi-path micro-seismic data files into micro-seismic data files respectively corresponding to the acquisition cards; traversing and combining the micro-seismic data files corresponding to the acquisition cards in real time based on the parameters to obtain combined micro-seismic data files; and processing the merged microseism data file into a file with a standard format and storing the file into the output data directory. The specific steps are the same as those of the multi-channel microseism data real-time merging method, and are not described herein again.
Acquiring parameters required by microseism data combination by running the program, using the parameters for the subsequent steps, automatically scanning multi-channel microseism data files in real time and monitoring the updating of the multi-channel microseism data files; traversing and combining the micro-seismic data files corresponding to the acquisition cards in real time to obtain combined micro-seismic data files; the merged microseism data file is processed into a file with a standard format and stored in the output data directory, so that subsequent professional processing software can directly process microseism data conveniently, data support is provided for the professional processing software in real time, and the requirement of monitoring the microseism in real time is met.
The storage media in the embodiments of the invention may take the form of any combination of one or more computer-readable media. The computer readable medium can be, for example, an electronic, magnetic, optical, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A real-time combination method of multi-path micro seismic data is characterized by comprising the following steps:
acquiring parameters required by microseism data combination, wherein the parameters comprise information of a plurality of acquisition cards, the number of detectors connected with each acquisition card, sampling intervals, the length of a combination time window, an input data directory and an output data directory;
a scanning step, wherein the multi-path micro-seismic data files acquired by the acquisition cards are automatically scanned based on the parameters so as to be arranged into micro-seismic data files respectively corresponding to the acquisition cards;
a merging step, based on the parameters, traversing and merging the micro-seismic data files corresponding to the acquisition cards in real time to obtain merged micro-seismic data files;
and an output step, namely processing the merged microseism data file into an output file with a standard format and storing the output file into the output data directory.
2. The method for real-time merging of multi-path microseismic data of claim 1 wherein the method further comprises:
and saving the parameters as parameter files for the scanning step, the combining step and the outputting step.
3. The method of real-time merging of multi-path microseismic data of claim 1 wherein the scanning step comprises:
obtaining a current file list according to the input data directory;
based on the information of the acquisition cards, sorting the current file list into file lists respectively corresponding to the acquisition cards;
repeating the above two steps at fixed time intervals.
4. The method for merging the multi-channel micro-seismic data in real time as claimed in claim 3, wherein the file name of the multi-channel micro-seismic data file contains the information of the acquisition card;
based on the information of the acquisition cards, sorting the current file list into file lists respectively corresponding to the acquisition cards, including:
and sorting the multi-channel microseism data files in the current file list into file lists respectively corresponding to the acquisition cards according to file names.
5. The method of real-time merging of multi-path microseismic data of claim 1 wherein the merging step comprises:
traversing all the microseism data files and determining the final time;
determining a merging time window based on the merging time window length;
judging whether the merging time window exceeds the final time or not, and if so, waiting for updating of the microseism data file; if not, merging the microseism data files matched with the merging time window, and sliding the merging time window downwards to form a new merging time window;
and repeating the judging steps based on the new merging time window.
6. The method of claim 5, wherein determining a merging time window based on the merging time window length comprises:
traversing all the microseism data files and determining the starting time;
determining an initial merging time window according to the starting time and the merging time window length;
sliding the merged time window down to form a new merged time window, comprising:
and determining a new merging time window according to the ending time of the merging time window and the length of the merging time window.
7. The method of claim 5, wherein if the merging time window does not exceed the end time, merging the microseismic data files that match the merging time window comprises:
if the merging time window does not exceed the final time, distributing the cache space of the merging time window;
and filling the data with the time stamp within the time of the merging time window into the cache space according to the time stamp of the data in the micro-seismic data file and the time of the merging time window.
8. The method of claim 7, wherein if the merging time window does not exceed the end time, merging the microseismic data files that match the merging time window, further comprising:
and managing the cache space of the merging time window according to the time stamp sequence of the sampling interval in the time of the merging time window.
9. The method as claimed in claim 1, wherein the output files in standard format include SEGY format files or SEGD format files.
10. A storage medium characterized by storing a program for executing the method of any one of claims 1 to 9.
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| US11719841B1 (en) | 2022-05-27 | 2023-08-08 | China University Of Mining And Technology | Timing alignment method for data acquired by monitoring units of borehole-surface micro-seismic monitoring system |
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