CN103744115A - Method and system for realizing data regularization processing at common-offset-distance and common-azimuth-angle domain - Google Patents
Method and system for realizing data regularization processing at common-offset-distance and common-azimuth-angle domain Download PDFInfo
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Abstract
The invention relates to the technical field of data processing, and discloses a method and a system for realizing data regularization processing at a common-offset-distance and common-azimuth-angle domain, wherein the method comprises the following steps that data to be processed is sorted to a crossed arrangement domain; the data of the crossed arrangement domain is sorted to the common-offset-distance and common-azimuth-angle domain; a corresponding and exchangeable common-offset-distance and common-azimuth-angle domain trace set is found according to the exchanging performance of the common-offset-distance and common-azimuth-angle domain; a seismic trace in a corresponding position in the exchangeable common-offset-distance and common-azimuth-angle domain trace set is lent to the common-offset-distance and common-azimuth-angle domain trace set; rest holes in the common-offset-distance and common-azimuth-angle domain trace set are subjected to data interpolation, and the data regularization processing is completed. The method and the system provided by the invention have the advantages that the trace lending and the interpolation of the same azimuth angle are realized, the data interpolation precision is ensured, the whole-work-region single-time coverage data subset hardly without any holes can be obtained, the vibration amplitude fidelity is ensured, and in addition, the data reliability after the interpolation is also ensured.
Description
Technical field
The present invention relates to technical field of data processing, particularly a kind of in the common offset method and system that orientation angular domain is carried out data rule processing altogether.
Background technology
Data rule is an important process step during seismic data is processed, its objective is that the data that make for being offset are spatially evenly distributed (being ideally single-coverage), there is no cavity, after skew, just can reduce like this skew picture arc, be conducive to compacting and gather footprint.Conventional data rule method is to carry out piggybacking or interpolation processing at common offset at present, mainly there are two problems in this rule method: the one, because each common offset road collection is not spatially single-coverage, can cause the interior seismic trace number of each bin unequal, after skew, energy is inconsistent, bring very large impact to hi-fi of amplitude, this impact, for wide-azimuth data acquisition, seems particularly serious; The 2nd, the common offset road collection of nearly offset distance and offset distance far away has too many cavity, is usually that more than the data with existing of cavity,, if carry out by force interpolation, the reliability of the data after gained interpolation is very low.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of in the common offset method and system that altogether orientation angular domain is carried out data rule processing, it can obtain single-coverage, almost there is no empty data subset, be very beneficial for migration before stack and process.
For solving the problems of the technologies described above, the invention provides a kind of method of carrying out data rule processing in the common orientation of common offset angular domain, comprising:
Pending data are sorted into cross spread territory;
The data in described cross spread territory are sorted into common offset orientation angular domain altogether;
Common offset altogether position angle numeric field data is prepared; Concrete grammar is: the interchangeability that is total to orientation angular domain according to described common offset finds the interchangeable common offset corresponding with it angular domain road, orientation collection altogether;
From described interchangeable common offset, be total to orientation angular domain piggybacking; Concrete grammar is: concentrate the seismic trace of correspondence position to borrow described common offset to concentrate in angular domain road, orientation altogether in angular domain road, orientation altogether described interchangeable common offset;
To described common offset, concentrate remaining cavity to carry out data interpolating in angular domain road, orientation altogether, the regularization that completes data is processed.
Further, described according to common offset altogether the interchangeability of orientation angular domain find the interchangeable common offset corresponding with it altogether the step of angular domain road, orientation collection specifically comprise: add up described in each common offset position angle, the space distribution scope of common offset and the position at empty place of angular domain road, orientation collection altogether, find with the described common offset space distribution scope interchangeable common offset consistent, that can cover cavity that the position angle of angular domain road, orientation collection differs 180 degree, common offset altogether and be total to angular domain road, orientation collection.
Further, the described step of concentrating remaining cavity to carry out data interpolating to angular domain road, the common orientation of common offset is specially: by five dimension method of interpolation, to described common offset, concentrate remaining cavity to carry out high accuracy data interpolation in angular domain road, orientation altogether.
It is a kind of in the common offset system that orientation angular domain is carried out data rule processing altogether that the present invention also provides, and comprising:
Road, cross spread territory collection acquisition module, for being sorted into cross spread territory by pending data;
Common offset is angular domain road, orientation collection acquisition module altogether, for the data in described cross spread territory being sorted into common offset orientation angular domain altogether;
Common offset is position angle numeric field data preparation module altogether, for be total to the interchangeability of orientation angular domain according to described common offset, finds the interchangeable common offset corresponding with it angular domain road, orientation collection altogether;
Common offset altogether position angle numeric field data exchanges module, for concentrating the seismic trace of correspondence position to borrow described common offset to concentrate in angular domain road, orientation altogether in angular domain road, orientation altogether described interchangeable common offset;
Data interpolating module, for concentrating remaining cavity to carry out data interpolating in angular domain road, orientation altogether to described common offset, the regularization that completes data is processed.
Further, described common offset is position angle numeric field data preparation module altogether, comprising:
Data statistics unit, for adding up described in each common offset position angle, the space distribution scope of common offset and the position at empty place of angular domain road, orientation collection altogether;
Common offset is orientation angular domain query unit altogether, for find with described common offset altogether the position angle of angular domain road, orientation collection differ that the space distribution scope of 180 degree, common offset is consistent, the interchangeable common offset that can cover cavity angular domain road, orientation collection altogether.
Further, described data interpolating module, specifically for concentrating remaining cavity to carry out high accuracy data interpolation in angular domain road, orientation by five dimension method of interpolation altogether to described common offset, the regularization that completes data is processed.
Beneficial effect of the present invention is:
Provided by the invention in the common offset method and system that orientation angular domain is carried out data rule processing altogether, utilize common offset altogether orientation angular domain process and the technical advantage such as there is single-coverage, preserve azimuth information, be interchangeable, same azimuthal piggybacking and interpolation have been realized, guaranteed the precision of data interpolating, can access full work area single-coverage, almost there is no an empty data subset, not only guarantee hi-fi of amplitude, but also guaranteed the reliability of the data after interpolation.
Accompanying drawing explanation
The method flow diagram that Fig. 1 provides for the embodiment of the present invention;
The system architecture diagram that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 is a certain common offset data profile of angular domain road, orientation collection altogether;
Fig. 4 carries out interchangeable piggybacking data profile afterwards for the common offset shown in Fig. 3 being total to angular domain road, orientation collection by the present invention;
Fig. 5 is that the common offset not carrying out before high precision interpolation is total to angular domain road, orientation collection data;
Fig. 6 carries out high precision interpolation data afterwards for the common offset shown in Fig. 5 being total to angular domain road, orientation collection by the present invention;
Fig. 7 carries out regularization processing data profile afterwards for common offset being total to angular domain road, orientation collection by the present invention.
Embodiment
For further setting forth the present invention, reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to being elaborated in common offset orientation angular domain is carried out the method and system of data rule processing altogether embodiment and principle of work of proposing according to the present invention.
Referring to Fig. 1, what the embodiment of the present invention provided is total at common offset the method that orientation angular domain is carried out data rule processing, comprising:
Step S110: pending data are sorted into cross spread territory;
Step S120: the data in cross spread territory are sorted into common offset orientation angular domain altogether;
Step S130: common offset altogether position angle numeric field data is prepared, concrete grammar is: based on common offset, be total to orientation angular domain and have the advantage of preserving azimuth information, before data ruleization is processed, need each common offset of statistics position angle of angular domain road, orientation collection altogether, the space distribution scope of common offset and the position at empty place, find with common offset and differ 180 degree in the position angle of angular domain road, orientation collection altogether, the space distribution scope of common offset is consistent, the interchangeable common offset that can cover cavity is total to angular domain road, orientation collection, according to the interchangeability of the common orientation of common offset angular domain, find the interchangeable common offset corresponding with it angular domain road, orientation collection altogether,
Step S140: be total to orientation angular domain piggybacking from interchangeable common offset; Concrete grammar is: according to the position at empty place, concentrate the seismic trace of correspondence position to borrow this common offset to concentrate in angular domain road, orientation altogether in angular domain road, orientation altogether interchangeable common offset; Because angular domain road, the common orientation of interchangeable common offset collection has and this common offset position angle that angular domain road, orientation collection is contrary altogether, therefore the position angle of angular domain road, the common orientation of this common offset collection after piggybacking is constant;
Step S150: concentrate remaining cavity to carry out high accuracy data interpolation in angular domain road, orientation by five dimension method of interpolation altogether to common offset, the regularization that completes data is processed.The data that are total in angular domain road, orientation collection due to same common offset have identical position angle, and the consistance of data is apparently higher than common offset road collection, therefore the data interpolating precision of the embodiment of the present invention is apparently higher than conventional common offset interpolation precision.
Referring to Fig. 2, what the embodiment of the present invention provided is total at common offset the system that orientation angular domain is carried out data rule, comprising:
Road, cross spread territory collection acquisition module 100, for being sorted into cross spread territory by pending data;
Common offset is angular domain road, orientation collection acquisition module 200 altogether, for the data in cross spread territory being sorted into common offset orientation angular domain altogether;
Common offset is position angle numeric field data preparation module 300 altogether, for be total to the interchangeability of orientation angular domain according to common offset, finds the interchangeable common offset corresponding with it angular domain road, orientation collection altogether;
In the present embodiment, common offset is position angle numeric field data preparation module 300 altogether, comprising:
Common offset is orientation angular domain query unit 320 altogether, for find with described common offset altogether the position angle of angular domain road, orientation collection differ that the space distribution scope of 180 degree, common offset is consistent, the interchangeable common offset that can cover cavity angular domain road, orientation collection altogether, according to common offset altogether the interchangeability of orientation angular domain find the interchangeable common offset corresponding with it to be total to angular domain road, orientation collection.
Common offset altogether position angle numeric field data exchanges module 400, for according to the position at empty place, concentrates the seismic trace of correspondence position to borrow common offset to concentrate in angular domain road, orientation altogether in angular domain road, orientation altogether interchangeable common offset.Because angular domain road, the common orientation of interchangeable common offset collection has and this common offset position angle that angular domain road, orientation collection is contrary altogether, therefore the position angle of angular domain road, the common orientation of this common offset collection after piggybacking is constant;
In the present embodiment, data interpolating module 500, specifically for concentrating remaining cavity to carry out high accuracy data interpolation in angular domain road, orientation by five dimension method of interpolation altogether to common offset, the regularization that completes data is processed.
In an embodiment of the present invention, first, pending data are sorted into cross spread territory.This can obtain according to the Data Extraction Technology in the cross territory in earth physical treatment general knowledge.
Then, the data in cross spread territory are sorted into common offset orientation angular domain altogether.
The present embodiment is to utilize certain actual seismic data (perpendicular offset and seisline distance are all 400 meters, degree of covering 96 times) to carry out, and obtains 96 common offsets angular domain road, orientation collection altogether, and number is identical with degree of covering.
Figure 3 shows that a certain common offset data profile of angular domain road, orientation collection altogether.The spread in Ji space, this road has the feature of single-coverage, but has a lot of data void holes to have (the more shallow part of color in figure), need to carry out regularization processing.
To common offset position angle numeric field data preparation altogether.Before data ruleization is processed, add up each common offset position at position angle, space distribution scope and the empty place of angular domain road, orientation collection altogether.The interchangeability that while is total to orientation angular domain according to common offset finds the interchangeable common offset corresponding with it angular domain road, orientation collection altogether;
From interchangeable common offset, concentrate piggybacking in angular domain road, orientation altogether.According to empty coordinate position, concentrate the seismic trace of correspondence position to borrow this common offset to concentrate in angular domain road, orientation altogether in angular domain road, orientation altogether interchangeable common offset; Because angular domain road, the common orientation of interchangeable common offset collection has and this common offset position angle that angular domain road, orientation collection is contrary altogether, therefore the position angle of angular domain road, the common orientation of this common offset collection is constant after piggybacking;
Fig. 4 carries out interchangeable piggybacking data profile afterwards for the common offset shown in Fig. 3 being total to angular domain road, orientation collection by the embodiment of the present invention.Compare with Fig. 3, most of large data void holes is supplemented, only more remaining little cavities.
High accuracy data interpolation is carried out in remaining cavity, after completing, can carry out migration processing.The data that are total in angular domain road, orientation collection due to same common offset have identical position angle, and the consistance of data is apparently higher than common offset road collection, therefore the precision of embodiment of the present invention data interpolating is apparently higher than conventional common offset interpolation precision.Wherein, the concrete interpolation method adopting is depending on concrete processing requirements.The present embodiment adopts irregular recording geometry five dimension interpolation algorithms, and precision is very high.
Fig. 5 and Fig. 6 have shown that the common offset before and after high precision interpolation is total to angular domain road, orientation collection Data Comparison, and visible interpolation the data obtained is consistent with amplitude, frequency, phase place and the Surface wave characteristic of legacy data, illustrates that interpolation precision is very high.
Fig. 7 carries out regularization processing data profile afterwards for common offset being total to angular domain road, orientation collection by the embodiment of the present invention.It has carried out five dimension interpolation on the basis of Fig. 4.Can see, data distribute does not almost have cavity (in figure, the more shallow part of color obviously reduces), and is single-coverage, is ideal data rule result.
After data rule completes, can be total to angular domain road, orientation collection to each common offset and carry out migration before stack processing.
What the embodiment of the present invention provided is total at common offset the method and system that orientation angular domain is carried out data rule processing, utilize common offset altogether orientation angular domain process and the technical advantage such as there is single-coverage, preserve azimuth information, be interchangeable, same azimuthal piggybacking and interpolation have been realized, guaranteed the precision of data interpolating, can access full work area single-coverage, almost there is no an empty data subset, not only guarantee hi-fi of amplitude, but also guaranteed the reliability of the data after interpolation.By the embodiment of the present invention, can obtain being close to optimal data rule result, be very beneficial for migration before stack and process.And conventional common offset piggybacking and interpolation are not considered azimuthal variation, the pixel accuracy changing greatly at stratigraphic dip is obviously not enough.And the common offset in the embodiment of the present invention altogether the data ruleization of orientation angular domain can keep the feature of single-coverage, this is also that the data ruleization of conventional common offset is not available.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to example, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (6)
1. in the common offset method that orientation angular domain is carried out data rule processing altogether, it is characterized in that, comprising:
Pending data are sorted into cross spread territory;
The data in described cross spread territory are sorted into common offset orientation angular domain altogether;
Common offset altogether position angle numeric field data is prepared; Concrete grammar is: the interchangeability that is total to orientation angular domain according to described common offset finds the interchangeable common offset corresponding with it angular domain road, orientation collection altogether;
From described interchangeable common offset, be total to orientation angular domain piggybacking; Concrete grammar is: concentrate the seismic trace of correspondence position to borrow described common offset to concentrate in angular domain road, orientation altogether in angular domain road, orientation altogether described interchangeable common offset;
To described common offset, concentrate remaining cavity to carry out data interpolating in angular domain road, orientation altogether, the regularization that completes data is processed.
2. as claimed in claim 1 in the common offset method that orientation angular domain is carried out data rule processing altogether, it is characterized in that, described according to common offset altogether the interchangeability of orientation angular domain find the interchangeable common offset corresponding with it altogether the step of angular domain road, orientation collection specifically comprise: add up described in each the common offset position angle of angular domain road, orientation collection altogether, the space distribution scope of common offset and the position at empty place, find with described common offset and differ 180 degree in the position angle of angular domain road, orientation collection altogether, the space distribution scope of common offset is consistent, the interchangeable common offset that can cover cavity is total to angular domain road, orientation collection.
3. as claimed in claim 1 or 2 in the common offset method that orientation angular domain is carried out data rule processing altogether, it is characterized in that, the described step of concentrating remaining cavity to carry out data interpolating to angular domain road, the common orientation of common offset is specially: by five dimension method of interpolation, to described common offset, concentrate remaining cavity to carry out high accuracy data interpolation in angular domain road, orientation altogether.
4. in the common offset system that orientation angular domain is carried out data rule processing altogether, it is characterized in that, comprising:
Road, cross spread territory collection acquisition module, for being sorted into cross spread territory by pending data;
Common offset is angular domain road, orientation collection acquisition module altogether, for the data in described cross spread territory being sorted into common offset orientation angular domain altogether;
Common offset is position angle numeric field data preparation module altogether, for be total to the interchangeability of orientation angular domain according to described common offset, finds the interchangeable common offset corresponding with it angular domain road, orientation collection altogether;
Common offset altogether position angle numeric field data exchanges module, for concentrating the seismic trace of correspondence position to borrow described common offset to concentrate in angular domain road, orientation altogether in angular domain road, orientation altogether described interchangeable common offset;
Data interpolating module, for concentrating remaining cavity to carry out data interpolating in angular domain road, orientation altogether to described common offset, the regularization that completes data is processed.
5. system of carrying out data rule processing in the common orientation of common offset angular domain as claimed in claim 4, is characterized in that, described common offset altogether position angle numeric field data preparation module comprises:
Data statistics unit, for adding up described in each common offset position angle, the space distribution scope of common offset and the position at empty place of angular domain road, orientation collection altogether;
Common offset is orientation angular domain query unit altogether, for find with described common offset altogether the position angle of angular domain road, orientation collection differ that the space distribution scope of 180 degree, common offset is consistent, the interchangeable common offset that can cover cavity angular domain road, orientation collection altogether.
As described in claim 4 or 5 in the common offset system that altogether orientation angular domain is carried out data rule processing, it is characterized in that, described data interpolating module, specifically for concentrating remaining cavity to carry out high accuracy data interpolation in angular domain road, orientation by five dimension method of interpolation altogether to described common offset, the regularization that completes data is processed.
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| CN105277985A (en) * | 2014-07-24 | 2016-01-27 | 中国石油化工股份有限公司 | OVT-domain seismic data regularization method based on image processing |
| CN104635266A (en) * | 2015-01-14 | 2015-05-20 | 中国石油天然气集团公司 | Multi-dimensional set display method and multi-dimensional set display system based on offset-azimuth angle domain |
| CN104635266B (en) * | 2015-01-14 | 2017-06-06 | 中国石油天然气集团公司 | A kind of multidimensional road collection display methods and system based on offset distance orientation angular domain |
| CN104570098A (en) * | 2015-01-28 | 2015-04-29 | 中国石油集团东方地球物理勘探有限责任公司 | Method and device for acquiring common-azimuth-angle seismic data |
| CN107167841A (en) * | 2016-03-08 | 2017-09-15 | 中国石油天然气股份有限公司 | Obtain the method and system of the common orientation angular domain trace gather of common offset |
| CN107167841B (en) * | 2016-03-08 | 2019-03-12 | 中国石油天然气股份有限公司 | Obtain the method and system that common offset is total to orientation angular domain trace gather |
| CN107728197A (en) * | 2016-08-11 | 2018-02-23 | 中国石油化工股份有限公司 | A kind of seismic data processing technique towards AVO invertings |
| CN107728197B (en) * | 2016-08-11 | 2019-04-09 | 中国石油化工股份有限公司 | A kind of seismic data processing technique towards AVO inverting |
| CN109521466A (en) * | 2017-09-20 | 2019-03-26 | 中国石油化工股份有限公司 | Division methods and system of the regular offset based on pencil observation system away from trace gather |
| CN108387927A (en) * | 2018-02-01 | 2018-08-10 | 中国石油天然气集团有限公司 | Crack and the adaptive of reservoir advantage Azimuth data volume determine method and apparatus |
| CN109031410A (en) * | 2018-07-16 | 2018-12-18 | 中国石油大学(华东) | The bilateral beam synthetic method in big gun inspection domain and system of common offset field result constraint |
| CN109031410B (en) * | 2018-07-16 | 2019-07-02 | 中国石油大学(华东) | The bilateral beam synthetic method in big gun inspection domain and system of common offset field result constraint |
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