CN106646592B - The real-time stacking method of single shot record - Google Patents
The real-time stacking method of single shot record Download PDFInfo
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Abstract
The present invention provides a kind of real-time stacking method of single shot record, and the real-time stacking method of the single shot record includes: step 1, by the synchronous reading technology of teledata, carries out seismic data real-time Transmission；Step 2, according to seismic-data traces head essential information, theoretical trace header information required for horizontal superposition is calculated；Step 3, for the data of new incoming, common midpoint gather is extracted by the common point information and speed library information preset according to trace header information automatically, by weighted vertical stacking method, the process that a big gun is just superimposed a big gun is often put in realization；Step 4, process is superimposed by automatic trigger, Mobile state of going forward side by side is shown, monitors field seismic data acquisition quality in real time.The real-time stacking method of the single shot record can all automate the process of processing profiles, and often discharged a big gun in field condition and be superimposed a big gun automatically, and monitoring efficiency and monitoring effect are substantially increased.
Description
Technical field
The present invention relates to field of geophysical exploration, especially relate to a kind of real-time stacking method of single shot record.
Background technique
As the raising of seismic prospecting construction efficiency, especially controlled source effectively collect, common seismic data quality prison
There are certain deficiencies for prosecutor method.There are mainly two types of methods for common seismic data quality monitoring: the playback of instrument cab single shot record is led to
Cross the evaluation field construction quality such as single-shot energy, frequency, signal-to-noise ratio；One working day of in-situ processing or multiple work sunrise one
CMP stack section.For seismic acquisition project under construction, main deficiency is embodied in: field monitoring is single-shot, is not examined
Consider the influence of degree of covering, it cannot macroscopic view reflection acquisition quality；Indoor section processing, monitoring lag, there are quality for highly effective gathering
Monitor hidden danger.Quality in site monitoring is carried out using the real-time superimposing technique of single shot record, Dynamically Announce monitoring is cutd open while blowing out
Face has a very important significance mass data highly effective gathering.We have invented a kind of new single shot record is real-time thus
Stacking method solves the above technical problem.
Summary of the invention
The object of the present invention is to provide one kind, and stacked section can be used to monitor in real time seismic prospecting site operation quality,
It can be realized seismic acquisition scene single shot record to be superimposed in real time, be suitable for seismic acquisition scene, seismic data acquisition
The real-time stacking method of single shot record of real-time quality control.
The purpose of the present invention can be achieved by the following technical measures: the real-time stacking method of single shot record, the single shot record
Real-time stacking method includes: step 1, by the synchronous reading technology of teledata, carries out seismic data real-time Transmission；Step 2, root
According to seismic data trace header essential information, theoretical trace header information required for horizontal superposition is calculated；Step 3, for the number of new incoming
According to, common midpoint gather is extracted by the common point information and speed library information preset according to trace header information automatically, it is logical
Weighted vertical stacking method is crossed, the process that a big gun is just superimposed a big gun is often put in realization；Step 4, process is superimposed by automatic trigger, and
Dynamically Announce is carried out, monitors field seismic data acquisition quality in real time.
The purpose of the present invention can be also achieved by the following technical measures:
In step 1, by remote synchronization update method, generated field SEG-D in automatic monitoring instrument device vehicle disk
Original earthquake data, one big gun of every production will be synchronized with the working directory in processing workstation, read single-shot data in real time
Into working directory；And single-shot superposition processing process, automatic trigger superposition processing process are executed by constant duration.
In step 2, a big gun, according to the trace header information recorded in single-shot SEG-D data, the basic trace header packet of unloading are read
Include the point number and wire size of shot point and geophone station；By the shot point of formula computational theory, geophone station and common point plane coordinates, with
And geophone offset information.
In step 2, the public affairs of the shot point, geophone station and common point plane coordinates and geophone offset information of computational theory
Formula are as follows:
Xcord_source=source_point_id*detect_interval+original_x
Ycord_source=source_line_id*detect_interval+original_y
Xcord_dectect=detect_point_id*detect_interval+original_x
Ycord_dectect=detect_line_id*detect_interval+original_y
Xcord_midpt=(xcord_source+xcord_dectect) * 0.5
Ycord_midpt=(ycord_source+ycord_dectect) * 0.5
Xcord_source is shot point x coordinate in formula, and source_point_id is the point number of shot point, detect_
Interval is track pitch, and original_x is shot point starting point X-coordinate, and ycord_source is shot point Y coordinate, original_y
For shot point starting point Y coordinate, xcord_dectect is geophone station X-coordinate, and ycord_dectect is geophone station Y coordinate,
Xcord_midpt is common point X-coordinate, and source_detect_dist is offset distance, and source_line_id is shot point line
Number, detect_point_id is geophone station point number, and detect_line_id is geophone station wire size, and detect_interval is
Away from calculating separately out theoretical shot point, geophone station and common point plane coordinates and geophone offset information by trace header information.
In step 3, by the trace header information of calculated theoretical shot point, geophone station and common point information write-in data
In, and the common midpoint gather according to trace header information extraction for superposition.
In step 3, the common midpoint gather of extraction is weighted superposition, circular are as follows:
Stack_n=[(stack_n-1) (n-1)+shot_n]/n
In formula, the big gun collection that inputs when shot_n is n-th job execution, stack_n be the superposition of these single-shots as a result,
Stack_n-1 is preceding n-1 subjob stack result, and stack_n and stack_n-1 are weighted longitudinal stack, every subjob system
One one file of output, always show the data volume, for monitoring the real-time Overlay of single-shot, to often be put chasing after for a big gun
Add superposition monitoring section.
In step 4, it by file directory monitoring technology, checks the variation of seismic data acquisition catalogue, works as specified directory
Under when having corresponding new file generated, automatic trigger is superimposed process；By the Dynamically Announce to specified superposition of data body, supervise in real time
Control field seismic data acquisition quality.
The real-time stacking method of single shot record in the present invention, this more complicated multistep interactive process by superposition processing,
It is final to realize that often putting a big gun is just superimposed a big gun by redesigning and changing stacking method, it is suitable for seismic acquisition scene
Real-time quality monitoring.Single shot record real-time Transmission, in real time superposition, section can be passed through with outer seismic data acquisition scene out of office
Real-time display, dynamic monitor field acquisition quality, solve collection site and rely only on single-shot progress quality monitoring, cannot achieve in real time
The bottleneck problem of macro-control seismic data collecting quality.Conventional stacked section monitoring construction quality is after construction in several days
Interact what processing was completed by multiple processes, this method can all automate the process of processing profiles, and out of office
Outer scene is often discharged a big gun and is superimposed a big gun automatically, and monitoring efficiency and monitoring effect are substantially increased.
Detailed description of the invention
Fig. 1 is the flow chart of a specific embodiment of the real-time stacking method of single shot record of the invention；
Fig. 2 is the real-time superposition processing process of single-shot in a specific embodiment of the invention；
Fig. 3 is the real-time stacked section figure of changing of single-shot in a specific embodiment of the invention.
Specific embodiment
To enable above and other objects, features and advantages of the invention to be clearer and more comprehensible, preferably implementation is cited below particularly out
Example, and cooperate shown in attached drawing, it is described in detail below.
As shown in FIG. 1, FIG. 1 is the flow charts of the real-time stacking method of single shot record of the invention.
Seismic data real-time Transmission is carried out by the synchronous reading technology of teledata in step 101.In one embodiment,
By remote synchronization update method, generated field SEG-D original earthquake data in automatic monitoring instrument device vehicle disk, every production
One big gun will be synchronized with the working directory in processing workstation, read single-shot data in real time and entered working directory.And pass through
Constant duration executes single-shot superposition processing process, automatic trigger superposition processing process.
In step 102, according to seismic-data traces head essential information, theoretical trace header information required for horizontal superposition is calculated.
A big gun is read, according to the trace header information recorded in single-shot SEG-D data, the basic trace header of unloading, including shot point and geophone station
Point number and wire size；Pass through the shot point of formula computational theory, geophone station and common point plane coordinates and geophone offset information.
In step 103, for the data of new incoming, according to trace header information extraction common midpoint gather and preset speed
Library information realizes that one big gun of every input carries out the process of additional superposition by weighted vertical stacking method.By calculated theoretical big gun
Point, geophone station and common point information write-in data trace header information in, and according to trace header information extraction for superposition altogether in
Heart point trace gather.
It checks the variation of seismic data acquisition catalogue by file directory monitoring technology in step 104, works as specified directory
Under when having corresponding new file generated, automatic trigger is superimposed process.
It monitors field seismic data in real time by the Dynamically Announce to specified superposition of data body in step 105 and acquires matter
Amount.
In an application specific embodiment of the invention, the actual production data in certain western work area, track pitch 30 are had chosen
Rice, starting point coordinate original_x=154340, original_y=4407180.The following steps are included:
1, pass through remote synchronization update method, the generated original earthquake of field SEG-D in automatic monitoring instrument device vehicle disk
Data, one big gun of every production will be synchronized with the working directory in processing workstation, read single-shot data in real time and entered work
Catalogue.And single-shot superposition processing process, automatic trigger superposition processing process are executed by constant duration；
2, a big gun, according to the trace header information recorded in single-shot SEG-D data, the basic trace header of unloading, including shot point are read
With the point number and wire size of geophone station；By the shot point, geophone station and common point plane coordinates of formula (1) computational theory, and
Geophone offset information；
Xcord_source=source_point_id*detect_interval+original_x
Ycord_source=source_line_id*detect_interval+original_y
Xcord_dectect=detect_point_id*detect_interval+original_x
Ycord_dectect=detect_line_id*detect_interval+original_y
Xcord_midpt=(xcord_source+xcord_dectect) * 0.5
Ycord_midpt=(ycord_source+ycord_dectect) * 0.5
Xcord_source is shot point x coordinate in formula, and source_point_id is the point number of shot point, detect_
Interval is track pitch, and original_x is shot point starting point X-coordinate, and ycord_source is shot point Y coordinate, xcord_
Dectect is geophone station X-coordinate, and xcord_midpt is common point X-coordinate, and source_detect_dist is offset distance,
Source_line_id is shot point wire size, and detect_point_id is geophone station point number, and detect_line_id is detection dotted line
Number, detect_interval is track pitch, and it is flat to calculate separately out theoretical shot point, geophone station and common point by trace header information
Areal coordinate and geophone offset information.
3, calculated theoretical shot point, geophone station and common point information are written in the trace header information of data, and according to
Common midpoint gather of the trace header information extraction for superposition；
4, by the common midpoint gather of extraction, the velocity information obtained by preset speed library is weighted superposition, tool
Body method such as formula (2), to often be put the additional superposition monitoring section of a big gun:
Stack_n=[(stack_n-1) (n-1)+shot_n]/n (2)
For the big gun collection that the real-time superposition processing process of single-shot, shot_n input when being n-th job execution, stack_n is this
The result of a little single-shot superpositions.Stack_n-1 is preceding n-1 subjob stack result, and stack_n and stack_n-1 is weighted vertical
Straight superposition.It is illustrated in figure 2 specific implementation process, by taking shot_3 has been survived in field as an example, passes through synchronization system first
Shot_3 is read into work station disk directory, then automatic trigger Programmable detection has new file production that can touch automatically into catalogue
Send out process operation subsequent, by call respectively produced before the stacked section stack_2 of two big guns and a list of the 3rd big gun
Then two data are weighted superposition according to formula (2), obtain the stacked section of preceding 3 big gun by the stacked section stack_3 of big gun
stack_3.So circulation can produce a big gun and be superimposed a big gun, finally obtain the stacked section stack_n of the n-th big gun.
5, obtained weighted superposition section is subjected to dynamic and updates display, carry out dynamic stacked section monitoring in real time.
As shown in figure 3, increasing with big gun number, section looks also change correspondingly in real time, convenient for monitoring in real time to data.
The present invention redesigns conventional stacked section process, and old process is more complicated, needs multistep operation,
And every step operation requires interactive completion.It generally wants to monitor field construction quality using stacked section, needs several days time
It could complete the production of stacked section.So the production of entire monitoring section can be automated by this method, it can be with every production
One big gun is just superimposed a big gun, live can monitor construction quality using stacked section in real time.
The present invention is suitable for seismic acquisition Site quality control.Outer seismic data acquisition scene out of office, passes through single-shot
Real-time Transmission, in real time superposition, section real-time display are recorded, dynamic monitors field acquisition quality, solves collection site and relies only on list
Big gun carries out quality monitoring, cannot achieve the bottleneck problem of macro-control seismic data collecting quality.Especially suitable for low signal-to-noise ratio
Area, single-shot signal-to-noise ratio is low, can not evaluate and monitor construction quality by single-shot in field, can only wait until that the later period completes superposition and cuts open
Face revalues construction quality, delays production efficiency significantly.So quickly can comprehensively evaluate construction effect by this method
Fruit substantially increases construction efficiency.
Embodiment described above, only one kind of the present invention more preferably specific embodiment, those skilled in the art
The usual variations and alternatives that member carries out within the scope of technical solution of the present invention should be all included within the scope of the present invention.
Claims (1)
1. the real-time stacking method of single shot record, which is characterized in that the real-time stacking method of the single shot record includes:
Step 1, by the synchronous reading technology of teledata, seismic data real-time Transmission is carried out；
Step 2, according to seismic-data traces head information, theoretical trace header information required for horizontal superposition is calculated；
Step 3, for the data of new incoming, according to trace header information, by the common point information and speed library information preset,
Automatic to extract common midpoint gather, by weighted vertical stacking method, the process that a big gun is just superimposed a big gun is often put in realization；
Step 4, process is superimposed by automatic trigger, Mobile state of going forward side by side is shown, monitors field seismic data acquisition quality in real time；
In step 1, reading technology, generated field SEG-D in automatic monitoring instrument device vehicle disk are synchronized by teledata
Original earthquake data, one big gun of every production will be synchronized with the working directory in processing workstation, read single-shot data in real time
Into working directory；And single-shot superposition processing process is executed by constant duration；
In step 2, a big gun is read, according to the trace header information recorded in single-shot SEG-D data, trace header information includes shot point and inspection
The point number and wire size of wave point；Believed by the shot point of formula computational theory, geophone station and common point plane coordinates and geophone offset
Breath are as follows:
Xcord_source=source_point_id*detect_interval+original_x
Ycord_source=source_line_id*detect_interval+original_y
Xcord_dectect=detect_point_id*detect_interval+original_x
Ycord_dectect=detect_line_id*detect_interval+original_y
Xcord_midpt=(xcord_source+xcord_dectect) * 0.5
Ycord_midpt=(ycord_source+ycord_dectect) * 0.5
Xcord_source is shot point x coordinate in formula, and source_point_id is the point number of shot point, and detect_interval is
Track pitch, original_x are shot point starting point X-coordinate, and ycord_source is shot point Y coordinate, and original_y is shot point starting
Point Y coordinate, xcord_dectect are geophone station X-coordinate, and ycord_dectect is geophone station Y coordinate, and xcord_midpt is total
Central point X-coordinate, ycord_midpt are common point Y coordinate, and source_detect_dist is offset distance, source_
Line_id is shot point wire size, and detect_point_id is geophone station point number, and detect_line_id is geophone station wire size,
Detect_interval is track pitch, calculates separately out theoretical shot point, geophone station and common point plane by trace header information and sits
Mark and geophone offset information；
In step 3, calculated theoretical shot point, geophone station and common point information are written in the trace header information of data, and
Common midpoint gather according to trace header information extraction for superposition；The common midpoint gather of extraction is weighted superposition, specifically
Calculation method are as follows:
Stack_n=[(stack_n-1) (n-1)+shot_n]/n
In formula, the big gun collection that shot_n is inputted when being n-th job execution, stack_n is the superposition of these single-shots as a result, stack_
N-1 is preceding n-1 subjob stack result, and stack_n and stack_n-1 are weighted longitudinal stack, and every subjob is unified to be exported
One file, for monitoring the real-time Overlay of single-shot, to often be put the additional superposition monitoring section of a big gun；
In step 4, it by file directory monitoring technology, checks the variation of seismic data acquisition catalogue, has when under specified directory
When corresponding new file generated, automatic trigger is superimposed process；By the Dynamically Announce to specified superposition of data body, real time monitoring is wild
Outer seismic data collecting quality.
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| CN112748460B (en) * | 2019-10-30 | 2024-03-01 | 中国石油天然气集团有限公司 | Method and system for calibrating actual single shot record horizon based on simulated earthquake single shot record |
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Effective date of registration: 20221213 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: SINOPEC Group Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: SINOPEC PETROLEUM ENGINEERING GEOPHYSICS Co.,Ltd. Patentee after: SHENGLI BRANCH OF SINOPEC PETROLEUM ENGINEERING GEOPHYSICS Co.,Ltd. Address before: 257086 No. 70 Qianjie Street, Niuzhuang Town, Dongying District, Dongying City, Shandong Province Patentee before: SHENGLI BRANCH OF SINOPEC PETROLEUM ENGINEERING GEOPHYSICS Co.,Ltd. |
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