CN104597486B - Utilize the method for first arrival time quick detection shot gather data - Google Patents
Utilize the method for first arrival time quick detection shot gather data Download PDFInfo
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- CN104597486B CN104597486B CN201310533642.3A CN201310533642A CN104597486B CN 104597486 B CN104597486 B CN 104597486B CN 201310533642 A CN201310533642 A CN 201310533642A CN 104597486 B CN104597486 B CN 104597486B
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Abstract
The invention provides a kind of method of utilization first arrival time quick detection shot gather data, this method has preset tolerance road number, and the standard first arrival time and first arrival time range of tolerable variance of each seismic channel, so, after each seismic channel gathers the data of a single-shot in real time and obtains its respective first arrival time, as long as by with standard first arrival time, the comparison of first arrival time range of tolerable variance and tolerance road number, it can quickly judge whether the shot gather data of the single-shot is correct, so as to the requirement handled in real time, and the embodiment of the present invention is all detected for each single-shot it is achieved thereby that complete detection, in addition, the present invention is clearly a kind of automatic detection means, so as to live real-time, comprehensively, automatically realize and quality testing is carried out to geological data.
Description
Technical field
The present invention relates to geophysical exploration technology, more particularly to utilize the side of first arrival time quick detection shot gather data
Method.
Background technology
In geophysical prospecting for oil, with high density, efficiently, the popularization of multiple tracks number seismic data acquisition, according to
By traditional method by drawing the progress field data collection quality control of the in-situ processing such as papery monitor log means
The real-time and high efficiency needs of actual production can not be met.
At present, highly efficient scheme is in the wild during earthquake data acquisition, to be sampled every 100 big guns or hundreds of big guns,
And sampled data is remotely passed back to progress quality testing analysis in indoor scene processing system.However, this Plan of Double Sampling Inspection can not
Quality testing is all carried out to every big gun data, once pinpointing the problems, it is high that cost is remedied in field.Therefore, needing one kind badly at present can scene
In real time, the method to geological data progress quality testing comprehensively, is automatically realized, to meet the demand currently explored.
The content of the invention
It is an object of the invention to provide a kind of method of utilization first arrival time quick detection shot gather data, it can be showed with realizing
In real time, comprehensively, automatically realize to geological data progress quality testing field.
To reach above-mentioned purpose, the invention provides a kind of method of utilization first arrival time quick detection shot gather data, bag
Include following steps：
B, each seismic channel gather the data of a single-shot in real time；
C, each seismic channel obtain respective first arrival time from the data each collected；
D, the first arrival time for calculating each seismic channel and its respective default standard first arrival time error；
E, judge the first arrival time error of each seismic channel whether beyond respective default first arrival time range of tolerable variance；
F, if it was exceeded, judging the first arrival time mistake of the seismic channel；
H, judge first arrival time mistake seismic channel quantity whether exceed default tolerance road number；
I, if it was exceeded, judging the shot gather data mistake of the single-shot；
Step b~i on k, repetition, until completing the shot gather data detection of all single-shots.
The present invention has preset tolerance road number, and each standard first arrival time and first arrival time tolerance model of seismic channel
Enclose, so, when each seismic channel data of one single-shot of collection and after obtain its respective first arrival time in real time, as long as by with
The comparison of standard first arrival time, first arrival time range of tolerable variance and tolerance road number, so that it may quickly judge the shot gather data of the single-shot
It is whether correct, so that the requirement analyzed in real time is realized, and the embodiment of the present invention all carries out detection for each single-shot so as to real
Complete detection is showed, in addition, the present invention is clearly a kind of automatic detection means, in real time, comprehensively, has automatically been realized so as to live
Quality testing is carried out to geological data.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, not
Constitute limitation of the invention.In the accompanying drawings：
Fig. 1 is the method flow diagram of the utilization first arrival time quick detection shot gather data of the embodiment of the present invention.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further details.Here, the schematic description and description of the present invention is used to explain the present invention, but do not make
For limitation of the invention.
Below in conjunction with the accompanying drawings, the embodiment to the present invention is described in further detail.
Refer to shown in Fig. 1, the method for the utilization first arrival time quick detection shot gather data of the embodiment of the present invention include with
Lower step：
A, in advance one single-shot of selection from several tentative single-shots so that first arrival of all seismic channels based on the single-shot
Ripple waveform is clear and the relation between its first arrival time, geophone offset and first arrival velocity of wave is correct, then will be each in all seismic channels
First arrival time of the seismic channel based on the single-shot as this seismic channel standard first arrival time.
This seismic channel is set previously according to velocity of wave change caused by the pickup precision and change in location of each seismic channel
First arrival time range of tolerable variance, will error that each seismic channel is produced by its pickup precision, and caused by change in location
Velocity of wave variation error is overlapped, and using the overall error after superposition as this seismic channel first arrival time range of tolerable variance.This implementation
In example, it is preferable that first arrival time range of tolerable variance, which is 30 milliseconds,.
Previously according to environmental disturbances（Such as mechanical wave）The mistake road caused accounts for the ratio setting tolerance road number of total seismic channel,
In the present embodiment, it the 30% of total seismic channel number is preferable that tolerance road number, which is,.
B, each seismic channel gather the data of a single-shot in real time.
C, each seismic channel obtain respective first arrival time from the data each collected.
D, the first arrival time for calculating each seismic channel and its respective default standard first arrival time error.
E, judge the first arrival time error of each seismic channel whether beyond respective default first arrival time range of tolerable variance；If
Beyond then execution step f；If without departing from execution step g.
F, if it was exceeded, judge the first arrival time mistake of the seismic channel, then perform step h.
If g, without departing from judging that the first arrival time of the seismic channel is correct, then perform step h.
H, judge first arrival time mistake seismic channel quantity whether exceed tolerance road number；If the execution step i if；
If without departing from execution step j.
I, if it was exceeded, judge the shot gather data mistake of the single-shot, the i.e. single-shot be blown-out shot or inclined big gun, hereafter by its big gun
Collect the attributed graph of single-shot of error in data with red block diagram output display, then perform step k.
If j, without departing from judging that the shot gather data of the single-shot is correct, i.e., the single-shot is normal big gun, hereafter by its big gun collection
The attributed graph of the correct single-shot of data green block diagram output display, and audible alarm is synchronously carried out to point out mistake, then
Perform step k.
Step b~i on k, repetition, until completing the shot gather data detection of all single-shots.
Because the embodiment of the present invention has preset tolerance road number, and each standard first arrival time of seismic channel and first arrival
Time tolerance scope, so, after each seismic channel gathers the data of a single-shot in real time and obtains its respective first arrival time,
As long as passing through the comparison with standard first arrival time, first arrival time range of tolerable variance and tolerance road number, so that it may quickly judge the single-shot
Shot gather data it is whether correct so that the requirement handled in real time, and the embodiment of the present invention is all detected for each single-shot
It is achieved thereby that complete detection, in addition, the embodiment of the present invention is clearly a kind of automatic detection means, so as to live real-time, complete
Face, automatically realization carry out quality testing to geological data.
Particular embodiments described above, has been carried out further in detail to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail it is bright, should be understood that the foregoing is only the present invention specific embodiment, the guarantor being not intended to limit the present invention
Scope is protected, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. should be included in this
Within the protection domain of invention.
Claims (10)
1. a kind of method of utilization first arrival time quick detection shot gather data, it is characterised in that comprise the following steps：
B, each seismic channel gather the data of a single-shot in real time；
C, each seismic channel obtain respective first arrival time from the data each collected；
D, the first arrival time for calculating each seismic channel and its respective default standard first arrival time error；
E, judge the first arrival time error of each seismic channel whether beyond respective default first arrival time range of tolerable variance；
F, if it was exceeded, judging the first arrival time mistake of the seismic channel；
H, judge first arrival time mistake seismic channel quantity whether exceed default tolerance road number；
I, if it was exceeded, judging the shot gather data mistake of the single-shot；
Step b~i on k, repetition, until completing the shot gather data detection of all single-shots.
2. the method for utilization first arrival time quick detection shot gather data according to claim 1, it is characterised in that the mark
Quasi- first arrival time is obtained by following steps：
A single-shot is selected from several tentative single-shots in advance so that preliminary wave waveform of all seismic channels based on the single-shot
The clear and relation between its first arrival time, geophone offset and first arrival velocity of wave is correct, then by all seismic channels each
First arrival time of the road based on the single-shot is shaken as the standard first arrival time of this seismic channel.
3. the method for utilization first arrival time quick detection shot gather data according to claim 1, it is characterised in that described first
Obtained to time tolerance scope by following steps：
The error that each seismic channel is produced by its pickup precision in advance, and the velocity of wave variation error caused by change in location
Be overlapped, and using the overall error after superposition as this seismic channel first arrival time range of tolerable variance.
4. the method for utilization first arrival time quick detection shot gather data according to claim 1, it is characterised in that the appearance
Poor road number is obtained by following steps：
The mistake road caused previously according to environmental disturbances accounts for the ratio setting tolerance road number of total seismic channel.
5. the method for utilization first arrival time quick detection shot gather data according to claim 1, it is characterised in that described first
It it is 30 milliseconds to time tolerance scope.
6. the method for utilization first arrival time quick detection shot gather data according to claim 1, it is characterised in that the appearance
Poor road number is the 30% of total seismic channel number.
7. the method for utilization first arrival time quick detection shot gather data according to claim 1, it is characterised in that when a certain
When first arrival time of the seismic channel based on the single-shot is without departing from its first arrival time range of tolerable variance, then judge that the seismic channel is based on the single-shot
First arrival time it is correct.
8. the method for utilization first arrival time quick detection shot gather data according to claim 1, it is characterised in that when based on
When the quantity of the seismic channel of the first arrival time mistake of the single-shot is without departing from the tolerance road number, then the shot gather data of the single-shot is judged
Correctly.
9. the method for utilization first arrival time quick detection shot gather data according to claim 8, it is characterised in that also wrap
Include：
By the attributed graph of the correct single-shot of its shot gather data with green block diagram output display, and by the list of its shot gather data mistake
The attributed graph of big gun red block diagram output display.
10. the method for utilization first arrival time quick detection shot gather data according to claim 9, it is characterised in that also wrap
Include：
It is synchronous to carry out sound report when the attributed graph of the single-shot by its shot gather data mistake is with red block diagram output display
Warn to point out mistake.
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| CN106324671A (en) * | 2015-07-01 | 2017-01-11 | 中国石油天然气股份有限公司 | Method and device of examining shot point offset |
| CN106291699B (en) * | 2016-08-26 | 2018-05-15 | 中国石油集团东方地球物理勘探有限责任公司 | The inclined detection method of big gun and the correct method for blowing out position of positioning in seismic prospecting |
| CN106842315B (en) * | 2016-12-12 | 2019-07-09 | 中国石油天然气集团公司 | The scene excitation quality monitoring instrument and method of node instrument well big gun acquisition |
| CN107576983B (en) * | 2017-11-02 | 2019-06-04 | 中国石油集团东方地球物理勘探有限责任公司 | Improve the method and data evaluation method of the accuracy of single-shot earthquake record first break pickup |
| CN112180434B (en) * | 2019-07-04 | 2024-03-08 | 中石化海洋石油工程有限公司上海物探分公司 | Time consistency checking method, device and machine-readable storage medium |
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| CN1128373C (en) * | 2001-01-21 | 2003-11-19 | 周熙襄 | Short wavelength static correction method of seismic prospecting data with preliminary refraction wave |
| US7706211B2 (en) * | 2006-02-06 | 2010-04-27 | Shell Oil Company | Method of determining a seismic velocity profile |
| CN102073067B (en) * | 2009-11-25 | 2012-12-12 | 中国石油天然气集团公司 | Method for increasing automatic pickup efficiency of geological data first-motion waves |
| CN102692648A (en) * | 2011-03-23 | 2012-09-26 | 中国石油天然气集团公司 | Refraction wave residual static correction method based on cannon first arrival |
| CN102243320B (en) * | 2011-04-12 | 2013-03-20 | 中国石油天然气股份有限公司 | Method for picking seismic wave first break |
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