CN104199099A - Efficient seismic interpretation method through multi-window continuous sections - Google Patents
Efficient seismic interpretation method through multi-window continuous sections Download PDFInfo
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- CN104199099A CN104199099A CN201410480841.7A CN201410480841A CN104199099A CN 104199099 A CN104199099 A CN 104199099A CN 201410480841 A CN201410480841 A CN 201410480841A CN 104199099 A CN104199099 A CN 104199099A
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Abstract
The invention relates to an efficient seismic interpretation method through multi-window continuous sections. The method includes 1, fault interpretation, namely analyzing a planar structural pattern on coherence time slices, determining the corresponded section structural pattern on the sections, and considering the fault combination, observing the situation of a target fault on a first interpretation channel section, opening the section of the next interpretation channel, comparing the content, opening the isochronal coherence slices at the head and tail of the fault, confirming the connection relationship of the target fault and an adjacent fault, controlling the direction of the fault, and implementing the fault interpretation on the section; 2, horizon interpretation, namely avoiding the fault and establishing a backbone section on a time slice adjacent to a target horizon, interpreting the backbone section, opening the interpretation channel sections of two adjacent main lines, opening the interpretation channel sections of two adjacent cross lines at one end, and repeating the steps until the horizon interpretation of the region between the two main lines is completed. By the aid of the method, the accuracy of seismic data interpretation and interpretation efficiency can be improved.
Description
Technical field
The present invention relates to the seismic interpretation work of petroleum exploration domain, be specifically related to a kind of method of utilizing multiwindow serial section efficiently to carry out seismic interpretation.
Background technology
Seismic data interpretation occupies very consequence in seismic prospecting, and the correctness of explanation results is directly connected to the great strategic issue such as the discovery of hydrocarbon-bearing pool, basin assessment and oil-gas exploration set direction.The accuracy that improves seismic data interpretation promotes simultaneously explains that efficiency is significant.At present conventional seismic interpretation technique has dynamic testing method, three-dimensional visualization technique, quick three-dimensional tomography and layer position interpretation procedure based on horizontal navigation.
1, dynamic testing method, can accomplish to observe clear complex geologic body spatial shape, but has increased exponent's memory burden, is easy to make mistakes;
2, three-dimensional visualization technique, the three-dimensional space shape of observation place plastid intuitively, but need to carry out adjusting transparency and viewing angle complicatedly, accuracy is higher, but efficiency is lower;
3, the quick three-dimensional layer position interpretation procedure based on horizontal navigation, can improve the accuracy that explain layer position, but need to repeatedly carry out the interpretation work of arbitrary section, and work efficiency is still lower;
4, the quick three-dimensional fault interpretation method based on horizontal navigation, because the form of fault plane and section changes more, utilizes the method to be difficult to the fault interpretation under handle complex situations.
Summary of the invention
The object of this invention is to provide a kind of method of utilizing multiwindow serial section efficiently to carry out seismic interpretation, thisly utilize method that multiwindow serial section efficiently carries out seismic interpretation for solving the conventional inefficient problem of seismic interpretation method at present.
The technical solution adopted for the present invention to solve the technical problems is: this method of utilizing multiwindow serial section efficiently to carry out seismic interpretation, first carry out fault interpretation, and then carry out layer position and explain, specific as follows:
One, fault interpretation:
1) before interpretation work and in interpretation process taking stress field as guidance, on coherent body time slice, analyze planar configuration pattern, and judge fault properties by trend, thus on section definite profile construction pattern of correspondence with it, take into account fault complex simultaneously;
2) on first explains section the tendency inclination angle of object observing tomography, longitudinally scale, form and with the combined situation of adjacent tomography;
3) open adjacent next and explain section, above content is examined to comparison, object is to get rid of the poor impact of seismic data quality and other tomographies in cutting or the overlapping impact mutually of a certain section;
4) body slice while opening the waiting of tomography head and the tail place, the bonding relation of hard objectives tomography and adjacent tomography, and control the trend of tomography;
5) obtain after the spatial, character scale feature of target fault by above-mentioned steps, on section, carry out fault interpretation;
6) repeating step 2) ~ 5), the interpretation work of target fault completed;
7) repeating step 2) ~ 6), the interpretation work of the whole tomographies in work area completed;
Two, explain layer position:
1) with the approaching time slice of zone of interest on, avoid tomography, set up key section, thereby reduce tomography on the successional impact of key section lineups;
2) key section is made an explanation, when explanation, be noted that as run between well or the unsharp place of the outer lineups of well, should abandon explaining, with the confidence level of " Seed Points " guaranteeing to explain;
3) open two adjacent main profiles and explain section, adjacent two cross-tracks of simultaneously opening one end are explained section, now, article four, section intersects a rectangle, if there are any one side lineups unintelligible, still can accurately explain by other three limits, thereby reduce minor fault and the poor impact of layer position being explained to accuracy of seismic data quality;
4) open successively next cross-track and explain section, until complete the layer position interpretation work in region between these two main profiles;
5) opening next organizes two adjacent main profiles and explains section, repeating step 3), 4), until complete the interpretation work of destination layer position.
The present invention has following beneficial effect:
1, the accuracy that the present invention can improve seismic data interpretation promotes explanation efficiency simultaneously, for exploration of oil and gas field work is laid a solid foundation, and how outstanding explanation personnel can be freed from heavy interpretation work, for more contribution is made in the development of oil gas field.
2, the present invention is in fault interpretation, take into account simultaneously multiple adjacent explanation sections and time window, the feature such as spatial, character scale of target fault just can be very clear, and can ensure position of fault accurately, realize closed.
3, the present invention is in explain layer position, adjacently explain that main profile section stepping type makes an explanation forward with two, be aided with and take into account multiple cross-track sections and make an explanation, can the impact of tomography and data quality be dropped to minimum, ensure that layer position explained accurate, realize closed.
4, the present invention is making full use of on the basis of 3D seismic data data, helps exponent to set up better geologic body three dimensions spread, contributes to improve precision and the accuracy of seismic data interpretation.
Brief description of the drawings
Fig. 1 is that a main profile L1954 explains that Profile Faults explains timely window position schematic diagram;
Fig. 2 is that adjacent main profile L1986 explains that Profile Faults explains timely window position schematic diagram;
Window T2784 fault interpretation and main profile position view when Fig. 3 is tomography top;
Window T3300 fault interpretation and main profile position view when Fig. 4 is tomography bottom;
Fig. 5 is the track schematic diagram of key section near time slice zone of interest;
Fig. 6 is on main profile L4060 and two cross-track position of intersecting point schematic diagram;
Fig. 7 is on main profile L4028 and two cross-track position of intersecting point schematic diagram;
Fig. 8 is on cross-track T3470 and two main profile position of intersecting point schematic diagram;
Fig. 9 is on cross-track T3438 and two main profile position of intersecting point schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
This method of utilizing multiwindow serial section efficiently to carry out seismic interpretation, first carries out fault interpretation, then carries out layer position and explains, specific as follows:
One, fault interpretation:
1) before interpretation work and in interpretation process taking stress field as guidance, on coherent body time slice, analyze planar configuration pattern, and judge fault properties by trend, thus on section definite profile construction pattern of correspondence with it, take into account fault complex simultaneously;
2) first explain the tendency inclination angle of the upper object observing tomography of section (consulting Fig. 1), longitudinally scale, form and with the combined situation of adjacent tomography;
3) open adjacent next and explain section (consulting Fig. 2), above content is examined to comparison, object is to get rid of the poor impact of seismic data quality and other tomographies in cutting or the overlapping impact mutually of a certain section;
4) body slice (consulting Fig. 3, Fig. 4) while opening the waiting of tomography head and the tail place, the bonding relation of hard objectives tomography and adjacent tomography, and control the trend of tomography;
5) obtain after the spatial, character scale feature of target fault by above-mentioned steps, on section, carry out fault interpretation;
6) repeating step 2) ~ 5), the interpretation work of target fault completed;
7) repeating step 2) ~ 6), the interpretation work of the whole tomographies in work area completed;
Two, explain layer position:
1) with the approaching time slice of zone of interest on (consulting Fig. 5), avoid tomography, set up key section, thereby reduce tomography on the successional impact of key section lineups;
2) key section is made an explanation, when explanation, be noted that as run between well or the unsharp place of the outer lineups of well, should abandon explaining, with the confidence level of " Seed Points " guaranteeing to explain;
3) open two adjacent main profiles and explain section (consulting Fig. 6, Fig. 7), adjacent two cross-tracks of simultaneously opening one end are explained section (consulting Fig. 8, Fig. 9), now, article four, section intersects a rectangle, if there are any one side lineups unintelligible, still can accurately explain by other three limits, thereby reduce minor fault and the poor impact of layer position being explained to accuracy of seismic data quality;
4) open successively next cross-track and explain section, until complete the layer position interpretation work in region between these two main profiles;
5) opening next organizes two adjacent main profiles and explains section, repeating step 3), 4), until complete the interpretation work of destination layer position.
The present invention is intended to make full use of 3D seismic data data, helps exponent to set up better the interpretation technique of geologic body three dimensions spread.It is applicable to tomography and the layer position in block that block, the seismic facies horizontal change of complex structure is large and the poor deep of seismic data quality and explains, contributes to improve precision and the efficiency of seismic data interpretation, has significantly efficiently, advantage accurately.In fault interpretation, utilize the method, take into account simultaneously multiple adjacent explanation sections and time window, the feature such as spatial, character scale of target fault just can be very clear, and can ensure position of fault accurately, realize closed.In explain layer position, utilize the method, adjacently explain that main profile section stepping type makes an explanation forward with two, be aided with and take into account multiple cross-track sections and make an explanation, the impact of tomography and data quality can be dropped to minimum, ensure that layer position explain accurately, realize closed.
Claims (1)
1. utilize multiwindow serial section efficiently to carry out a method for seismic interpretation, it is characterized in that: this method of utilizing multiwindow serial section efficiently to carry out seismic interpretation, first carry out fault interpretation, then carry out layer position and explain, specific as follows:
One, fault interpretation:
1) before interpretation work and in interpretation process taking stress field as guidance, on coherent body time slice, analyze planar configuration pattern, and judge fault properties by trend, thus on section definite profile construction pattern of correspondence with it, take into account fault complex simultaneously;
2) on first explains section the tendency inclination angle of object observing tomography, longitudinally scale, form and with the combined situation of adjacent tomography;
3) open adjacent next and explain section, above content is examined to comparison, object is to get rid of the poor impact of seismic data quality and other tomographies in cutting or the overlapping impact mutually of a certain section;
4) body slice while opening the waiting of tomography head and the tail place, the bonding relation of hard objectives tomography and adjacent tomography, and control the trend of tomography;
5) obtain after the spatial, character scale feature of target fault by above-mentioned steps, on section, carry out fault interpretation;
6) repeating step 2) ~ 5), the interpretation work of target fault completed;
7) repeating step 2) ~ 6), the interpretation work of the whole tomographies in work area completed;
Two, explain layer position:
1) with the approaching time slice of zone of interest on, avoid tomography, set up key section, thereby reduce tomography on the successional impact of key section lineups;
2) key section is made an explanation, when explanation, be noted that as run between well or the unsharp place of the outer lineups of well, should abandon explaining;
3) open two adjacent main profiles and explain section, adjacent two cross-tracks of simultaneously opening one end are explained section, now, article four, section intersects a rectangle, if there are any one side lineups unintelligible, still can accurately explain by other three limits, thereby reduce minor fault and the poor impact of layer position being explained to accuracy of seismic data quality;
4) open successively next cross-track and explain section, until complete the layer position interpretation work in region between these two main profiles;
5) opening next organizes two adjacent main profiles and explains section, repeating step 3), 4), until complete the interpretation work of destination layer position.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488353A (en) * | 2019-09-04 | 2019-11-22 | 中海石油(中国)有限公司 | It is a kind of based on the fault interpretation method cuing open flat interaction and being combined with tectonic style guidance |
| CN110764142A (en) * | 2019-11-12 | 2020-02-07 | 西南石油大学 | Method for assisting seismic data interpretation |
| CN113267815A (en) * | 2021-07-07 | 2021-08-17 | 中海油田服务股份有限公司 | Filtering method and device for repeated broken edge data |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5999885A (en) * | 1996-09-25 | 1999-12-07 | Geoquest | Method and apparatus for automatically identifying fault cuts in seismic data using a horizon time structure |
| AU2003275021A1 (en) * | 2002-10-18 | 2004-05-13 | Exxonmobil Upstream Research Company | A method for rapid fault interpretation of fault surfaces generated to fit three-dimensional seismic discontinuity data |
| CN103135136A (en) * | 2011-11-25 | 2013-06-05 | 中国石油化工股份有限公司 | Automatic fault interpretation device for three-dimensional seismic data body |
| CN102867330B (en) * | 2012-08-29 | 2014-10-01 | 电子科技大学 | Region-division-based spatial complex horizon reconstruction method |
| CN103514630B (en) * | 2013-10-16 | 2017-02-15 | 北京石油化工学院 | Fault structure three-dimensional modeling method |
| CN103941288B (en) * | 2014-04-16 | 2016-08-17 | 中国海洋石油总公司 | A kind of objective geologic body means of interpretation based on horizontal navigation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488353A (en) * | 2019-09-04 | 2019-11-22 | 中海石油(中国)有限公司 | It is a kind of based on the fault interpretation method cuing open flat interaction and being combined with tectonic style guidance |
| CN110764142A (en) * | 2019-11-12 | 2020-02-07 | 西南石油大学 | Method for assisting seismic data interpretation |
| CN113267815A (en) * | 2021-07-07 | 2021-08-17 | 中海油田服务股份有限公司 | Filtering method and device for repeated broken edge data |
| CN113267815B (en) * | 2021-07-07 | 2022-05-10 | 中海油田服务股份有限公司 | Method and device for filtering repeated broken edge data |
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