CN112904423B - Engraving method and device for land-phase river channel - Google Patents
Engraving method and device for land-phase river channel Download PDFInfo
- Publication number
- CN112904423B CN112904423B CN201911218119.5A CN201911218119A CN112904423B CN 112904423 B CN112904423 B CN 112904423B CN 201911218119 A CN201911218119 A CN 201911218119A CN 112904423 B CN112904423 B CN 112904423B
- Authority
- CN
- China
- Prior art keywords
- seismic data
- land
- river
- wheeler
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 75
- 238000012937 correction Methods 0.000 claims abstract description 22
- 238000004590 computer program Methods 0.000 claims description 17
- 238000005553 drilling Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000010363 phase shift Effects 0.000 claims description 4
- 239000013049 sediment Substances 0.000 abstract description 11
- 230000007480 spreading Effects 0.000 abstract description 9
- 238000003892 spreading Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 14
- 238000004458 analytical method Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 10
- 230000004044 response Effects 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000012800 visualization Methods 0.000 description 2
- 208000035126 Facies Diseases 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
- G01V1/30—Analysis
- G01V1/301—Analysis for determining seismic cross-sections or geostructures
- G01V1/302—Analysis for determining seismic cross-sections or geostructures in 3D data cubes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
- G01V1/32—Transforming one recording into another or one representation into another
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
- G01V1/36—Effecting static or dynamic corrections on records, e.g. correcting spread; Correlating seismic signals; Eliminating effects of unwanted energy
- G01V1/362—Effecting static or dynamic corrections; Stacking
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/61—Analysis by combining or comparing a seismic data set with other data
- G01V2210/616—Data from specific type of measurement
- G01V2210/6169—Data from specific type of measurement using well-logging
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention provides a land river carving method and a device, wherein the method comprises the following steps: converting the time domain seismic data of the target work area into Wheeler domain seismic data; performing unequal correction on the Wheeler seismic data to generate corrected Wheeler domain seismic data; and engraving the land river channel according to the corrected Wheeler domain seismic data. The land river channel carving method provided by the invention can fully utilize the seismic data to identify the river channel in land sediment, and accurately and quantitatively carve the spreading form of the river channel in space.
Description
Technical Field
The invention relates to the field of petroleum exploration, in particular to a land-phase river carving method and device.
Background
In recent years, I have discovered more and more reservoirs in land-phase river courses, particularly dwarf tight sandstone reservoirs in the Sichuan basin-Chuan-zhong region, have been drilled with multiple wells and have demonstrated the presence of good quality reservoirs in land-phase river course sand, li Qingzhong yard write articles written "river is always diverted by frequent swings on plain to pave the sediment it carries. The basin subsides at a very slow rate so that the curvelet and the plait river are continuously moving back and forth and lodging in the subsurface as in a machine that turns over the land. After tens of thousands of years, the sediment in the basin becomes an unordered "mixture" and no complete river channel is found on the surface, i.e. where the beach is and where the ox yoke lake is. Therefore, it is difficult to accurately and effectively find a land-based river channel using conventional seismic exploration techniques.
In view of the foregoing, there is a need for a quantitative carving technique for river channels in a land-phase stratum.
Disclosure of Invention
Aiming at the problem that the quantitative carving technology for the river channels in the land stratum is lacking in the prior art, the land river channel carving method and device provided by the invention can be used for identifying the river channels in land sediment by utilizing three-dimensional seismic data and quantitatively carving the distribution form of the river channels in space.
In order to solve the technical problems, the invention provides the following technical scheme:
In a first aspect, the present invention provides a method for engraving a land-based river, comprising:
converting the time domain seismic data of the target work area into Wheeler domain seismic data;
Performing unequal correction on the Wheeler seismic data to generate corrected Wheeler domain seismic data;
and engraving the land river channel according to the corrected Wheeler domain seismic data.
In one embodiment, performing isochronism determination on the Wheeler domain seismic data includes:
Performing linkage comparison on the time slice of the conventional seismic data of the target work area and the stratum slice of the Wheeler domain seismic data to generate a comparison result;
and judging whether the same phase axis of the Wheeler domain seismic data is equal or not by using a residual inclination angle method according to the comparison result.
In one embodiment, the engraving the land river according to the corrected Wheeler domain seismic data includes:
calibrating the Wheeler domain seismic data by using drilling data to generate a seismic phase of the land-phase river channel;
tracking boundaries of the land-phase river channel in the corrected Wheeler domain seismic data according to the seismic phases.
In an embodiment, the carving the land river according to the corrected Wheeler domain seismic data further includes:
generating a relation between the land river channel thickness and the amplitude of the land river channel by using a wave equation forward modeling method;
Tracking boundaries of the land-phase river course in the corrected Wheeler domain seismic data according to the relation.
In a second aspect, the present invention provides a carving apparatus for a land-based river, the apparatus comprising:
the seismic data conversion unit is used for converting the time domain seismic data of the target work area into Wheeler domain seismic data;
The seismic data generation unit is used for carrying out unequal correction on the Wheeler seismic data so as to generate corrected Wheeler domain seismic data;
and the river carving unit is used for carving the land-phase river according to the corrected Wheeler domain seismic data.
In one embodiment, the carving device of the land river further comprises: an isochronicity judging unit, configured to perform isochronicity judgment on the Wheeler domain seismic data, where the isochronicity judging unit includes:
The comparison result generation module is used for carrying out linkage comparison on the time slice of the conventional seismic data of the target work area and the stratum slice of the Wheeler domain seismic data so as to generate a comparison result;
And the event judging module is used for judging whether the event of the Wheeler domain seismic data is equal or not by utilizing a residual inclination angle method according to the comparison result.
In one embodiment, the river carving unit includes:
the seismic phase generation module is used for calibrating the seismic data in the Wheeler domain by utilizing the drilling data to generate a seismic phase of the land-phase river channel;
and a boundary tracking first module, configured to track a boundary of the land-phase river channel in the corrected Wheeler domain seismic data according to the seismic phase.
In an embodiment, the river carving unit further includes:
the relation generation module is used for generating a relation between the land river channel thickness and the amplitude of the land river channel by utilizing a wave equation forward modeling method;
And a boundary tracking second module, configured to track the boundary of the land river channel in the corrected Wheeler domain seismic data according to the relation.
In a third aspect, the present invention provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the steps of the method for engraving a terrestrial river.
In a fourth aspect, the present invention provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of a method of engraving a land-based river channel.
As can be seen from the above description, the carving method and apparatus for land-phase river provided in the embodiments of the present invention firstly track the land-phase river based on the Wheeler domain seismic data (the Wheeler domain data can accurately track the isochronous interface in the land-phase river environment), and perform isochronous correction on the Wheeler domain seismic data, and finally track the land-phase river based on the corrected Wheeler domain seismic data. The land river carving method solves the problem that the quantitative carving technology for the river in the land stratum is lacking in the prior art, and the three-dimensional seismic data are fully utilized to identify the river in land sediment, so that the spatial spreading form of the river is accurately and quantitatively carved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a method for engraving a land-based river in an embodiment of the invention;
FIG. 2 is a schematic diagram of a land river carving method according to an embodiment of the present invention;
FIG. 3 is a flow chart of step 400 in an embodiment of the invention;
FIG. 4 is a flowchart illustrating a step 300 according to an embodiment of the present invention;
FIG. 5 is a second flowchart of step 300 according to an embodiment of the present invention;
FIG. 6 is a schematic flow chart of a land river carving method in a specific application example of the invention;
FIG. 7 is a wheeler-domain explanatory cross-section in an embodiment of the present invention;
FIG. 8 is a schematic illustration of a river course in an example of an embodiment of the present invention;
FIG. 9 is a schematic diagram of a river profile of the 8 th stage of the temple region in an embodiment of the present invention;
FIG. 10 is a schematic diagram showing the result of the spatial distribution of the river channel in the 8 th period in the temple region in the specific application example of the present invention;
FIG. 11 is a block diagram of a land-phase river carving apparatus according to an embodiment of the present invention;
FIG. 12 is a block diagram of a land river carving apparatus according to an embodiment of the present invention;
FIG. 13 is a block diagram showing a construction of a riverway carving unit according to an embodiment of the invention;
FIG. 14 is a block diagram of a river carving unit according to an embodiment of the present invention;
fig. 15 is a schematic structural diagram of an electronic device in an embodiment of the invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Because of its frequent diversion, the reflective phase axis of the formation cannot be tracked continuously over a large period, which is typically interrupted, split and combined frequently. Therefore, if an interpreter always scales forward along the intermittent trough (or peak) according to the conventional stratum interpretation habit, the interpreter scales to an upper and lower non-parallel position, and only one phase can be skipped to advance again. So that each time a jump phase is encountered and each time a bifurcation merge is encountered, there is an abnormal change in amplitude, and this contrast method generally forces it to close on the plan view of the three-dimensional data volume.
The embodiment of the present invention provides a specific implementation manner of a land river carving method, referring to fig. 1, the method specifically includes the following steps:
step 100: and converting the time domain seismic data of the target work area into Wheeler domain seismic data.
It will be appreciated that each time slice in the longitudinal direction in the Wheeler data may represent a sedimentary formation of the same geologic time, not a time-domain or depth-domain seismic data volume, but rather a transform into a geologic time domain, characterizing the distribution of the formation in the conventional geologic time-space domain and associated sedimentary or erosive ablation events, which Wheeler domain data is able to visually characterize. Therefore, in order to accurately track the isochronous interface in the land-phase river-phase environment, the seismography-based method carries out layer sequence interpretation in the Wheeler domain, carries out isochronous analysis on each horizon, and carries out nonlinear adjustment in the non-isochronous region through linkage comparison of a plane and a section.
Step 200: and performing unequal correction on the Wheeler seismic data to generate corrected Wheeler domain seismic data.
Specifically, the original seismic section, the section after 90 degrees phase shift and the corresponding stratum slice are displayed in a linkage way, and whether the slices are unequal or not is checked by previewing the slices. And performing nonlinear correction of polygon constraint at the position where the non-isochronal phenomenon exists. And selecting the slice positions and splicing the slice positions to generate corrected Wheeler domain seismic data.
Step 300: and engraving the land river channel according to the corrected Wheeler domain seismic data.
Specifically, a geologic model in the development period of the river is established by using a small layer based on Wheeler domain fine layer sequence interpretation. The amplitude values of the seismic trace curves are then represented in color under the constraints of the geologic model, thereby changing a three-dimensional seismic trace data volume into a data volume represented by a different color volume. And then, adjusting parameters in the three-dimensional visualizer explanation, namely values and value range ranges of the seed points, by using the relation between the river channel and the amplitude obtained by forward modeling. And finally, carrying out interactive tracking on each river channel so as to determine the boundary and the top and bottom of the river channel.
As can be seen from the above description, the carving method of the land-phase river provided by the embodiment of the invention firstly tracks the land-phase river based on the Wheeler domain seismic data (the Wheeler domain data can accurately track the isochronous interface under the land-phase river environment), and performs isochronous correction on the Wheeler domain seismic data, and finally tracks the land-phase river based on the corrected Wheeler domain seismic data. The land river carving method solves the problem that the quantitative carving technology for the river in the land stratum is lacking in the prior art, and the three-dimensional seismic data are fully utilized to identify the river in land sediment, so that the spatial spreading form of the river is accurately and quantitatively carved.
In one embodiment, referring to fig. 2, the carving method of the land river further includes:
Step 400: and judging isochronicity of the Wheeler domain seismic data.
In one embodiment, referring to fig. 3, step 400 specifically includes:
Step 401: and carrying out linkage comparison on the time slice of the conventional seismic data of the target work area and the stratum slice of the Wheeler domain seismic data to generate a comparison result.
Step 402: and judging whether the same phase axis of the Wheeler domain seismic data is equal or not by using a residual inclination angle method according to the comparison result.
It is understood that the method of judging whether the same phase axis is equal in the Wheeler data body is the residual inclination method. The method is realized on the basis of the stratigraphic slice data volume, namely whether the generated stratigraphic slice data volume is equal or not is judged. The time slice of the slice isochronal analysis data volume is aligned with the data volume slice of the Wheeler data volume to perform the slice isochronal analysis.
In one embodiment, referring to fig. 4, step 300 comprises:
step 301: and calibrating the seismic data in the Wheeler domain by using the drilling data to generate the seismic phase of the land-phase river channel.
Step 302: tracking boundaries of the land-phase river channel in the corrected Wheeler domain seismic data according to the seismic phases.
In the implementation of step 301 and step 302, the corresponding mode of the land river channel needs to be determined first, and the land river channel response mode is determined by two main methods: ① Through the fine calibration of the drilled well, a seismic phase mode of the river channel is established, and the seismic phase mode is mainly represented by short-axis strong amplitude, the top boundary of the river channel is a trough, and the bottom boundary is a crest. ② And utilizing wave equation forward modeling to clearly utilize three-dimensional data to identify the characteristics of the river channel and the quantitative relation between the river channel and the amplitude. Establishing a wedge forward model, wherein the design of the river channel thickness comes from actual well data, parameters of forward modeling come from actual field acquisition parameters, and forward modeling is performed by adopting a wave equation forward modeling method to obtain seismic response characteristics of different river channel thicknesses; and then, calculating the thickness of the river channel of the single well in the work area, extracting the maximum peak amplitude value at the well point, carrying out intersection analysis on the maximum peak amplitude value and the maximum peak amplitude value to obtain a nonlinear positive correlation relation between the thickness and the seismic peak amplitude, and fitting a relation formula of the thickness of the river channel along with the amplitude change.
In one embodiment, referring to fig. 5, step 300 may further include:
step 30a: and generating a relation between the land river channel thickness and the amplitude thereof by using a wave equation forward modeling method.
Step 30b: tracking boundaries of the land-phase river course in the corrected Wheeler domain seismic data according to the relation.
In step 30a and step 30b, a geologic model is first built within the development period of the river using the small layers under Wheeler domain based fine layer sequence interpretation. The amplitude values of the seismic trace curves are then represented in color under the constraints of the geologic model, thereby changing a three-dimensional seismic trace data volume into a data volume represented by a different color volume. And then, adjusting parameters in the three-dimensional visualizer explanation, namely values and value range ranges of the seed points, by using the relation between the river channel and the amplitude obtained by forward modeling. And finally, carrying out interactive tracking on each river channel so as to determine the boundary and the top and bottom of the river channel.
As can be seen from the above description, the carving method of the land-phase river provided by the embodiment of the invention firstly tracks the land-phase river based on the Wheeler domain seismic data (the Wheeler domain data can accurately track the isochronous interface under the land-phase river environment), and performs isochronous correction on the Wheeler domain seismic data, and finally tracks the land-phase river based on the corrected Wheeler domain seismic data. The land river carving method solves the problem that the quantitative carving technology for the river in the land stratum is lacking in the prior art, and the three-dimensional seismic data are fully utilized to identify the river in land sediment, so that the spatial spreading form of the river is accurately and quantitatively carved.
To further illustrate the scheme, the invention takes the temple region of the mountain in Sichuan basin and the Gaoshan region of the high stone terraced and the Gong region as an example, and provides a specific application example of the carving method of the land river channel, wherein the specific application example specifically comprises the following content, and is shown in fig. 6.
Three-dimensional visualization technology starts in the late 80 s of the 20 th century, but is limited in application due to the limitation of computer hardware conditions. Three-dimensional visualization technology has matured after the mid 90 s of the 20 th century. The basic principle is that the seismic reflectivity of the underground reflection interface is directly evaluated in a three-dimensional space through transparency adjustment and stereoscopic display of the seismic data. In short, the amplitude value of the seismic trace curve is represented by a certain color, so that a three-dimensional seismic trace data volume is changed into a data volume represented by different color volumes.
In the engraving of a land river channel, the method firstly carries out fine river channel feature calibration through actual drilling data, determines the earthquake response mode of the river channel based on forward modeling of wave equation, and determines the color body range of the river channel in a three-dimensional visual window. The boundary of the river channel is then tracked by seed point tracking in a three-dimensional visualizer interpretation. And finally, determining the top interface and the bottom interface of the river channel by tracking seed points in the longitudinal direction on the basis of fine sequence interpretation.
S0: the time domain data volume is converted into a Wheeler domain data volume.
The conventional seismic data are utilized for carrying out layer sequence division, sedimentary facies identification, sedimentary evolution analysis and reservoir prediction, and the method has stronger multi-solution property due to the influence of the current construction trend. The Wheeler domain seismic data has isochrony, clear stratum gyratory property and clear spreading range, is convenient for layer sequence and system domain division after well earthquake calibration, is easy to identify sand bodies, can analyze distribution characteristics and causes of the sand bodies under phase control constraint during analysis of the deposition evolution process of the stratum, evaluates favorable reservoirs and reduces multiple solutions. The converted Wheeler domain data volume is obtained through calculation by using Geosed software through a corresponding algorithm (Wheeler conversion method), and the quick browsing of stratum slices is realized according to FIG. 7.
S1: isochronism analysis of formation sections.
Referring to fig. 8, the residual tilt method was used to determine whether the same phase axis was equal in the Wheeler body. It will be appreciated that the method is implemented on the basis of a slice data volume, i.e. determining whether the generated slice data volume is isochronous. The time slice of the slice isochronal analysis data volume is aligned with the data volume slice of the Wheeler data volume to perform the slice isochronal analysis. When the mouse cursor is moved over one slice, there will be a cursor present at the same location as another Zhang Qiepian. As can be seen, there is a sporadic gray display on the right slice, which indicates that the slice is relatively unequal at that location. From this it can be concluded that: the slices have better overall isochronism and have local isochronism.
S2: nonlinear isochronism correction of formation slices.
And carrying out linkage display on the original seismic section, the section after 90 DEG phase shift and the corresponding stratum slice, and checking whether the slice is unequal or not through previewing the slice. And performing nonlinear correction of polygon constraint at the position where the non-isochronal phenomenon exists. And selecting the slice by adjusting the position of the slice, and then splicing the slice.
S3: quantitative classification of river response patterns.
There are two main methods to determine the river response pattern: ① Through the fine calibration of the drilled well, a seismic phase mode of the river channel is established, and the seismic phase mode is mainly represented by short-axis strong amplitude, the top boundary of the river channel is a trough, and the bottom boundary is a crest. ② And utilizing wave equation forward modeling to clearly utilize three-dimensional data to identify the characteristics of the river channel and the quantitative relation between the river channel and the amplitude. Establishing a wedge forward model, wherein the design of the river channel thickness comes from actual well data, parameters of forward modeling come from actual field acquisition parameters, and forward modeling is performed by adopting a wave equation forward modeling method to obtain seismic response characteristics of different river channel thicknesses; and then, calculating the thickness of the river channel of the single well in the work area, extracting the maximum peak amplitude value at the well point, carrying out intersection analysis on the maximum peak amplitude value and the maximum peak amplitude value to obtain a nonlinear positive correlation relation between the thickness and the seismic peak amplitude, and fitting a relation formula of the thickness of the river channel along with the change of the amplitude, wherein the relation formula is shown in fig. 8.
S4: the three-dimensional interpretation technique engraves the boundary and the top and bottom of the river channel.
Firstly, establishing a geological model in the development period of a river channel by utilizing a small layer based on Wheeler domain fine layer sequence interpretation. The amplitude values of the seismic trace curves are then represented in color under the constraints of the geologic model, thereby changing a three-dimensional seismic trace data volume into a data volume represented by a different color volume. And then, adjusting parameters in the three-dimensional visualizer explanation, namely values and value range ranges of the seed points, by using the relation between the river channel and the amplitude obtained by forward modeling. Finally, each river channel is interactively tracked to determine the boundary and the top and the bottom of the river channel, see fig. 9 and 10.
The method provided by the embodiment is utilized to carry out the engraving of land-phase river channels in the temple region and the high stone terraced and ground river region of Sichuan basin river, and the 23-stage river channels of the dwarf system Shaxi temple group are engraved together, so that the beneficial area is near 5000km2, and further, the task of 300-ten-thousand-ton capacity construction in the shallow dense oil field of Sichuan basin is effectively supported.
As can be seen from the above description, the carving method of the land-phase river provided by the embodiment of the invention firstly tracks the land-phase river based on the Wheeler domain seismic data (the Wheeler domain data can accurately track the isochronous interface under the land-phase river environment), and performs isochronous correction on the Wheeler domain seismic data, and finally tracks the land-phase river based on the corrected Wheeler domain seismic data. The land river carving method solves the problem that the quantitative carving technology for the river in the land stratum is lacking in the prior art, and the three-dimensional seismic data are fully utilized to identify the river in land sediment, so that the spatial spreading form of the river is accurately and quantitatively carved.
Based on the same inventive concept, the embodiment of the application also provides a carving device of a land river course, which can be used for realizing the method described in the embodiment, such as the following embodiment. The principle of the land river carving device for solving the problems is similar to that of a land river carving method, so that the land river carving device can be implemented by referring to the land river carving method, and repeated parts are omitted. As used below, the term "unit" or "module" may be a combination of software and/or hardware that implements the intended function. While the system described in the following embodiments is preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and contemplated.
An embodiment of the present invention provides a specific implementation manner of a land river carving device capable of implementing a land river carving method, referring to fig. 11, the land river carving device specifically includes:
a seismic data conversion unit 10 for converting time domain seismic data of the target work area into Wheeler domain seismic data;
A seismic data generating unit 20, configured to perform unequal correction on the Wheeler seismic data, so as to generate corrected Wheeler domain seismic data;
And the river carving unit 30 is used for carving the land river according to the corrected Wheeler domain seismic data.
In one embodiment, referring to fig. 12, the carving device of the land river further includes: an isochronicity determination unit 40 configured to perform isochronicity determination on the Wheeler domain seismic data, where the isochronicity determination unit 40 includes:
The comparison result generation module 401 is configured to perform linkage comparison on a time slice of conventional seismic data of the target work area and a stratum slice of the Wheeler domain seismic data, so as to generate a comparison result;
the event judging module 402 is configured to judge whether the event of the Wheeler domain seismic data is equal according to the comparison result by using a residual inclination method.
In one embodiment, referring to fig. 13, the river carving unit 30 includes:
The seismic phase generating module 301 is configured to perform calibration on the Wheeler domain seismic data by using drilling data, and generate a seismic phase of the land-phase river channel;
a boundary tracking first module 302 is configured to track a boundary of the land-phase river channel in the corrected Wheeler domain seismic data according to the seismic phase.
In one embodiment, referring to fig. 14, the river carving unit 30 further includes:
A relational expression generating module 30a, configured to generate a relational expression between the land river channel thickness and the amplitude thereof by using a wave equation forward modeling method;
A boundary tracking second module 30b for tracking the boundary of the land-phase river in the corrected Wheeler domain seismic data according to the relation.
As can be seen from the above description, the carving device for land-phase river provided by the embodiments of the present invention firstly tracks the land-phase river based on the Wheeler domain seismic data (the Wheeler domain data can accurately track the isochronous interface in the land-phase river environment), and performs isochronous correction on the Wheeler domain seismic data, and finally tracks the land-phase river based on the corrected Wheeler domain seismic data. The land river carving method solves the problem that the quantitative carving technology for the river in the land stratum is lacking in the prior art, and the three-dimensional seismic data are fully utilized to identify the river in land sediment, so that the spatial spreading form of the river is accurately and quantitatively carved.
The embodiment of the present application further provides a specific implementation manner of an electronic device capable of implementing all the steps in the land river carving method in the foregoing embodiment, and referring to fig. 15, the electronic device specifically includes the following contents:
a processor 1201, a memory 1202, a communication interface (Communications Interface) 1203, and a bus 1204;
Wherein the processor 1201, the memory 1202 and the communication interface 1203 perform communication with each other through the bus 1204; the communication interface 1203 is configured to implement information transmission between related devices such as a server device, an acquisition device, and a user device.
The processor 1201 is configured to call a computer program in the memory 1202, and when the processor executes the computer program, the processor performs all the steps in the land river carving method in the above embodiment, for example, when the processor executes the computer program, the processor performs the following steps:
step 100: and converting the time domain seismic data of the target work area into Wheeler domain seismic data.
Step 200: and performing unequal correction on the Wheeler seismic data to generate corrected Wheeler domain seismic data.
Step 300: and engraving the land river channel according to the corrected Wheeler domain seismic data.
As can be seen from the above description, the electronic device in the embodiment of the present application firstly tracks the land river channel based on the Wheeler domain seismic data (the Wheeler domain data can accurately track the isochronous interface in the land river phase environment), and performs isochronous correction on the Wheeler domain seismic data, and finally tracks the land river channel based on the corrected Wheeler domain seismic data. The land river carving method solves the problem that the quantitative carving technology for the river in the land stratum is lacking in the prior art, and the three-dimensional seismic data are fully utilized to identify the river in land sediment, so that the spatial spreading form of the river is accurately and quantitatively carved.
The embodiment of the present application also provides a computer-readable storage medium capable of implementing all the steps in the method for engraving a terrestrial river in the above embodiment, on which a computer program is stored, which when executed by a processor implements all the steps in the method for engraving a terrestrial river in the above embodiment, for example, the processor implements the following steps when executing the computer program:
step 100: and converting the time domain seismic data of the target work area into Wheeler domain seismic data.
Step 200: and performing unequal correction on the Wheeler seismic data to generate corrected Wheeler domain seismic data.
Step 300: and engraving the land river channel according to the corrected Wheeler domain seismic data.
As can be seen from the above description, the computer readable storage medium in the embodiments of the present application firstly tracks the land-phase river course based on the Wheeler domain seismic data (the Wheeler domain data can accurately track the isochronous interface in the land-phase river-phase environment), and performs isochronous correction on the Wheeler domain seismic data, and finally tracks the land-phase river course based on the corrected Wheeler domain seismic data. The land river carving method solves the problem that the quantitative carving technology for the river in the land stratum is lacking in the prior art, and the three-dimensional seismic data are fully utilized to identify the river in land sediment, so that the spatial spreading form of the river is accurately and quantitatively carved.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (6)
1. A method of engraving a land-based river, comprising:
converting the time domain seismic data of the target work area into Wheeler domain seismic data;
Performing isochronism judgment on the Wheeler domain seismic data;
performing unequal correction on the Wheeler domain seismic data to generate corrected Wheeler domain seismic data;
Engraving the land river according to the corrected Wheeler domain seismic data;
performing unequal correction on the Wheeler domain seismic data to generate corrected Wheeler domain seismic data, comprising:
The original seismic section, the section after 90 degrees phase shift and the corresponding stratum slice are displayed in a linkage way;
Checking whether the slices have unequal phenomena by previewing the slices;
Performing nonlinear correction of polygon constraint at a position where the unequal phenomenon exists;
Splicing the slices by adjusting the position selection of the slices and the like to generate corrected Wheeler domain seismic data;
The engraving of the land-phase river course according to the corrected Wheeler domain seismic data comprises:
calibrating the Wheeler domain seismic data by using drilling data to generate a seismic phase of the land-phase river channel;
tracking boundaries of the land-phase river channel in the corrected Wheeler domain seismic data according to the seismic phases;
the engraving of the land-phase river course according to the corrected Wheeler domain seismic data further comprises:
generating a relation between the land river channel thickness and the amplitude of the land river channel by using a wave equation forward modeling method;
Tracking boundaries of the land-phase river course in the corrected Wheeler domain seismic data according to the relation.
2. The engraving method of claim 1, wherein making an isochronal determination of the Wheeler domain seismic data comprises:
Performing linkage comparison on the time slice of the conventional seismic data of the target work area and the stratum slice of the Wheeler domain seismic data to generate a comparison result;
and judging whether the same phase axis of the Wheeler domain seismic data is equal or not by using a residual inclination angle method according to the comparison result.
3. An engraving device for land-phase river channels, comprising:
the seismic data conversion unit is used for converting the time domain seismic data of the target work area into Wheeler domain seismic data;
the isochronal judging unit is used for judging isochronal of the Wheeler domain seismic data;
the seismic data generation unit is used for carrying out unequal correction on the Wheeler domain seismic data so as to generate corrected Wheeler domain seismic data;
the river carving unit is used for carving the land-phase river according to the corrected Wheeler domain seismic data;
the seismic data generation unit is specifically configured to:
The original seismic section, the section after 90 degrees phase shift and the corresponding stratum slice are displayed in a linkage way;
Checking whether the slices have unequal phenomena by previewing the slices;
Performing nonlinear correction of polygon constraint at a position where the unequal phenomenon exists;
Splicing the slices by adjusting the position selection of the slices and the like to generate corrected Wheeler domain seismic data;
the river carving unit includes:
the seismic phase generation module is used for calibrating the seismic data in the Wheeler domain by utilizing the drilling data to generate a seismic phase of the land-phase river channel;
a boundary tracking first module for tracking the boundary of the land river channel in the corrected Wheeler domain seismic data according to the seismic phase;
The river carving unit further comprises:
the relation generation module is used for generating a relation between the land river channel thickness and the amplitude of the land river channel by utilizing a wave equation forward modeling method;
And a boundary tracking second module, configured to track the boundary of the land river channel in the corrected Wheeler domain seismic data according to the relation.
4. The engraving apparatus of claim 3, wherein the isochronicity determination unit comprises:
The comparison result generation module is used for carrying out linkage comparison on the time slice of the conventional seismic data of the target work area and the stratum slice of the Wheeler domain seismic data so as to generate a comparison result;
And the event judging module is used for judging whether the event of the Wheeler domain seismic data is equal or not by utilizing a residual inclination angle method according to the comparison result.
5. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method for engraving a land-phase river according to any one of claims 1 to 2 when the program is executed.
6. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, carries out the steps of the method for engraving a land-based river according to any one of claims 1 to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911218119.5A CN112904423B (en) | 2019-12-03 | 2019-12-03 | Engraving method and device for land-phase river channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911218119.5A CN112904423B (en) | 2019-12-03 | 2019-12-03 | Engraving method and device for land-phase river channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112904423A CN112904423A (en) | 2021-06-04 |
| CN112904423B true CN112904423B (en) | 2024-04-30 |
Family
ID=76103985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911218119.5A Active CN112904423B (en) | 2019-12-03 | 2019-12-03 | Engraving method and device for land-phase river channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112904423B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707317A (en) * | 2010-10-27 | 2012-10-03 | 中国石油化工股份有限公司 | Method of using absorption and attenuation characteristics of seismic wave for reservoir analysis |
| CN103454678A (en) * | 2013-08-12 | 2013-12-18 | 中国石油天然气股份有限公司 | Method and system for determining seismic slice isochronism |
| CN104330828A (en) * | 2014-10-27 | 2015-02-04 | 中国石油天然气股份有限公司 | Dessert reservoir forecasting method and forecasting device |
| CN105717542A (en) * | 2016-04-11 | 2016-06-29 | 北京科胜伟达石油科技股份有限公司 | Wheeler domain section sand body carving method based on three-dimensional earthquake |
| CN106597547A (en) * | 2016-12-28 | 2017-04-26 | 中国石油化工股份有限公司 | Method for accurately describing earthquake in thin reservoir |
| CN107976713A (en) * | 2017-11-08 | 2018-05-01 | 中国石油天然气股份有限公司 | A kind of lower method and device for removing sedimentation setting of higher-dimension seismic data input |
| CN108614293A (en) * | 2018-03-14 | 2018-10-02 | 中国石油天然气股份有限公司 | Sand-body Prediction method and device |
-
2019
- 2019-12-03 CN CN201911218119.5A patent/CN112904423B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707317A (en) * | 2010-10-27 | 2012-10-03 | 中国石油化工股份有限公司 | Method of using absorption and attenuation characteristics of seismic wave for reservoir analysis |
| CN103454678A (en) * | 2013-08-12 | 2013-12-18 | 中国石油天然气股份有限公司 | Method and system for determining seismic slice isochronism |
| CN104330828A (en) * | 2014-10-27 | 2015-02-04 | 中国石油天然气股份有限公司 | Dessert reservoir forecasting method and forecasting device |
| CN105717542A (en) * | 2016-04-11 | 2016-06-29 | 北京科胜伟达石油科技股份有限公司 | Wheeler domain section sand body carving method based on three-dimensional earthquake |
| CN106597547A (en) * | 2016-12-28 | 2017-04-26 | 中国石油化工股份有限公司 | Method for accurately describing earthquake in thin reservoir |
| CN107976713A (en) * | 2017-11-08 | 2018-05-01 | 中国石油天然气股份有限公司 | A kind of lower method and device for removing sedimentation setting of higher-dimension seismic data input |
| CN108614293A (en) * | 2018-03-14 | 2018-10-02 | 中国石油天然气股份有限公司 | Sand-body Prediction method and device |
Non-Patent Citations (1)
| Title |
|---|
| 利用地震切片技术分析沉积相的潜在风险与对策;苏明军 等;《天然气地球科学》;第25卷(第12期);第2034-2039页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112904423A (en) | 2021-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Guerra et al. | Role of halokinesis in controlling structural styles and sediment dispersal in the Santos Basin, offshore Brazil | |
| Jiang et al. | Sequence-stratigraphic architectures and sand-body distribution in Cenozoic rifted lacustrine basins, east China | |
| DK201570358A1 (en) | Seismic data processing method and apparatus | |
| Martinsen et al. | Source-to-sink systems on passive margins: theory and practice with an example from the Norwegian continental margin | |
| NO335324B1 (en) | Method of simulating deposition of a sedimentary sequence in a sedimentation pool | |
| CN105093311A (en) | Stratum denudation thickness measurement method for superposition basin multi-phase difference upheaval region | |
| CN111624651B (en) | Reservoir prediction method and device based on paleo-topography constraint | |
| Masoumi et al. | Buried pockmarks on the Top Chalk surface of the Danish North Sea and their potential significance for interpreting palaeocirculation patterns | |
| Shaban et al. | Comparison between curvature and 3D strain analysis methods for fracture predicting in the Gachsaran oil field (Iran) | |
| Elmahdy et al. | An integrated structural and stratigraphic characterization of the Apollonia carbonate reservoir, Abu El-Gharadig Basin, Western Desert, Egypt | |
| Fang et al. | Fine description of structure and sedimentary microfacies of Li32 block of Lijin oilfield, Dongying depression, China | |
| Gupta et al. | Seismic attribute driven integrated characterization of the Woodford Shale in west-central Oklahoma | |
| Yong et al. | Application of stratigraphic-sedimentological forward modeling of sedimentary processes to predict high-quality reservoirs within tight sandstone | |
| Shabalin et al. | Tight oil development in RN-Yuganskneftegas | |
| CN106443772B (en) | One kind going diapir original stratigraphic thickness restoration methods | |
| Escalona et al. | Subsidence controls on foreland basin development of northwestern offshore Cuba, southeastern Gulf of Mexico | |
| CN112904423B (en) | Engraving method and device for land-phase river channel | |
| Saein | Tectonic and Structural Framework of the Zagros Fold-thrust Belt | |
| Clairmont et al. | Controls of pre‐existing structures on clinoform architecture and the associated progradational system elements | |
| Le Heron | Interpretation of Late Ordovician glaciogenic reservoirs from 3-D seismic data: an example from the Murzuq Basin, Libya | |
| Duvbiama et al. | 3D Static Modelling of an offshore field in the Niger-delta | |
| Li et al. | Application of new geological modeling technology in secondary development in Daqing oil field | |
| CN114076982B (en) | Karst paleo-landform restoration method and device based on waveform characteristic difference | |
| Schenk et al. | Integrated Gravity Modeling of Salt Feature in the Mississippi Salt Basin | |
| Yusuf et al. | Use of pilot wells to cost-effectively unlock field potential: Case studies from the Jasmine Field |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |