CN106990449B - multi-dimensional data-based continental facies sequence stratigraphic framework construction characterization method - Google Patents
multi-dimensional data-based continental facies sequence stratigraphic framework construction characterization method Download PDFInfo
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- CN106990449B CN106990449B CN201710260232.4A CN201710260232A CN106990449B CN 106990449 B CN106990449 B CN 106990449B CN 201710260232 A CN201710260232 A CN 201710260232A CN 106990449 B CN106990449 B CN 106990449B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V11/00—Prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/00 - G01V9/00
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- 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. analysis, for interpretation, for correction
- G01V1/30—Analysis
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- 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
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- 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
- G01V2210/6161—Seismic or acoustic, e.g. land or sea measurements
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- 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
Abstract
The invention provides a continental facies stratigraphic framework construction characterization method based on multidimensional data, which comprises the following steps: collecting and analyzing data; establishing a sequence stratigraphic framework on points according to characteristics of lithologic catastrophe surfaces, curve change surfaces and the like; establishing a sequence stratum framework on a line according to the interface characteristics of ablation, upper surpass, lower surpass and the like; connecting the lines according to the data correlation of the lines to form a surface, compiling a sequential stratum thickness correlation graph, and analyzing distribution characteristics on the surface of the sequential stratum; based on the characteristics on the 'surface', the establishment of a three-dimensional space 'body' of the full-basin sequence stratum is carried out, and the construction of a sequence stratum framework is perfected; according to a construction scheme on a sequence stratum framework body, sequence development time series data are collected, development characteristics and vertical evolution characteristics of basin stratum sequences in three-dimensional space at different development stages are analyzed, a sequence stratum framework on a full basin 'time' is established, and finally the full basin sequence stratum framework is established.
Description
Technical Field
The invention relates to the technical field of geological exploration, in particular to a method for characterizing the construction of a continental facies stratigraphic framework based on multi-dimensional data.
background
After the development of the sequence stratigraphy for decades, particularly under the continuous effort of geological workers in China after the sequence stratigraphy is introduced into China, the theory becomes the most important basic work and means for searching energy resources, particularly, the theory has great success in the oil-gas exploration of continental lake basins in China, and therefore, the difference of theoretical systems and technical routes is also introduced, so that the oil-gas exploration is seriously restricted due to the fact that the research results of the same stratum in the same research area are different.
Disclosure of Invention
In view of this, the embodiment of the present invention provides a continental facies stratigraphic framework construction characterization method based on multidimensional data.
The embodiment of the invention provides a continental facies sequence stratigraphic framework construction characterization method based on multi-dimensional data, which comprises the following steps of: collecting and analyzing data; collecting data of drilling cores, well logging, earthquake and the like of different points in the ancient and near system stratum with the concave part of the manifold, identifying a sequence stratum interface on a single well according to characteristics of lithological mutation surfaces, curve change surfaces and the like, analyzing sedimentary development characteristics inside the sequence, dividing different levels of the sequence, and establishing a single well sequence grid on the point; collecting well-connecting section and seismic section data in the ancient near stratum with the notch of the manifold, constructing according to a sequence stratum framework on the points, connecting according to the relevance of the data of the points to form a line, calibrating a well-seismic sequence interface on the seismic section, explaining the sequence stratum and analyzing the internal structure of the sequence, and establishing a sequence stratum framework on the line; according to the established line-based sequence stratum framework, connecting the lines according to the data correlation of the lines to form a surface, compiling a sequence stratum thickness related graph, and analyzing the distribution characteristics on the surface of the sequence stratum; collecting three-dimensional seismic data volume of the ancient near system stratum with the concave bifurcation, establishing a three-dimensional space 'volume' of the full basin sequence stratum based on the development characteristics of the sequence on the surface, and perfecting the construction of a sequence stratum framework; according to the construction scheme on the sequence stratum framework body, sequence development time series data are collected, the development characteristics and the vertical evolution characteristics of the basin stratum in the three-dimensional space at different development stages are analyzed, and the construction of the stratum framework on the full basin time is completed.
Preferably, the data collected in step (1) is embodied as multidimensional data relating to well drilling, geology, earthquakes, archaea, and the like.
Preferably, the specific steps of step (2) are: developing the on-site development characteristic analysis of the sequence, comprehensively utilizing field outcrop, geochemical test, logging curve, logging lithology and seismic data to identify the sequence interface according to lithology catastrophe and curve change surface characteristics, and establishing a single-well sequence stratum framework.
Preferably, the specific steps of step (3) are: developing sequence 'line' upper development characteristic analysis, identifying sequence interfaces according to the seismic reflection characteristics of ablation, upper surpass and lower surpass on the seismic section, establishing a well-connecting section sequence stratum framework by using the characteristics of a single well interface, and establishing a sequence stratum framework of a basin on the basis of stratum contrast and closure.
Preferably, the specific steps of step (4) are: aiming at the on-line sequence stratum framework, the analysis on the surface is carried out, the scanning work of the level of each three-level sequence system domain of the key layer interval is carried out in a large three-dimensional area, the construction drawing, the stratum isopachrome, the sand body thickness drawing, the percentage drawing, the sedimentary facies drawing and other plane drawings of each identifiable system domain are compiled, the development characteristics of the sequence space are analyzed, and the basin-ground sequence stratum framework division scheme is perfected.
Preferably, the specific steps of step (5) are: the method comprises the steps of utilizing a three-dimensional data body to carry out analysis on the space geometric forms, distribution ranges and the space superposition relations of the sequence, the system domain, the quasi-sequence group and other types of sedimentary bodies in a three-dimensional space on the 'body', dissecting the distribution relations of all sedimentary bodies of a target horizon in the three-dimensional space, establishing a structure-sequence-sedimentary facies pattern diagram in the three-dimensional space, analyzing the development characteristics of the sequence of the full basin three-dimensional space, and perfecting a sequence stratum framework construction scheme.
Preferably, the specific steps of step (6) are: and (3) carrying out evolution analysis of basin stratum sequence framework evolution-deposition filling process-structure action by combining the time-up development series of the stratum sequence on the basis of the analysis of points, lines, surfaces and bodies, further perfecting a basin stratum sequence framework construction scheme and establishing a basin stratum framework.
Preferably, the method further comprises the following steps: and determining the matching relation of the basin generation, storage and covering in the sequence grid by combining the oil and gas exploration practice.
Compared with the prior art, the method for constructing and characterizing the continental facies stratigraphic framework based on the multi-dimensional data constructs the continental facies stratigraphic framework based on points, lines, surfaces, bodies and time, has clear thought and distinct hierarchy, is gradually deepened, and accords with the logical thinking of scientific research; the research idea of 'point, line, surface, body and time' is used for carrying out the whole research process of the sequence stratigraphy, covering all research contents of the sequence stratigraphy and establishing a perfect sequence stratigraphic framework; thirdly, the technology provides a research platform for the research of the sequence stratigraphy, and the method can automatically and continuously expand along with the development of scientific technology and the abundance of data and automatically perfect the method for constructing and characterizing the sequence stratigraphic framework; fourthly, the method is simple and easy to understand and operate, is beneficial to a beginner to quickly master the characterization method for constructing the stratigraphic framework of the sequence, effectively develops the research on the stratigraphic sequence, and is also beneficial to the popularization of the stratigraphic sequence theory.
drawings
The invention is described in detail below with reference to the drawings and specific embodiments;
FIG. 1 is a flow chart of a method for constructing and characterizing a stratigraphic framework of a continental facies sequence based on multidimensional data.
FIG. 2 is a "point" top-manifold-recess A-well single-well sequence stratigraphic column and sedimentary facies analysis.
FIG. 3 is a sequence stratigraphic explanation of the ancient near system backbone seismic section with a notch on the upper branch of the line.
FIG. 4 is a thickness diagram of a three-level sequence stratum with a notch on the "face".
FIG. 5 is a perspective view of the ancient topography of the "bulk" upper manifold recess sand-lower stage sequence (under SQEs 1).
FIG. 6 is a diagram of analysis of the vertical evolution of the ancient sequence-deposition in the notch of the upper notch of the "hour".
FIG. 7 is a stratigraphic framework of the order of the ancestral and recent family of the bifurcation concavities.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Please refer to fig. 1, which is a flowchart of a method for constructing and characterizing a stratigraphic framework of a continental facies sequence based on multidimensional data according to the present invention, comprising the following steps:
Step 101, collecting and analyzing data; and collecting data such as well drilling, geology, seismic data volume, archaea and the like in the ancient and near system stratum with the notch of the manifold, and screening and classifying the data.
102, collecting data of drilling cores, well logging, earthquake and the like of different points in an ancient and near system stratum with a concave manifold, identifying a stratigraphic interface on a single well according to characteristics of lithological catastrophe surfaces and curve change surfaces, analyzing sedimentary development characteristics in the stratigraphic interface, dividing different levels of stratigraphic framework, and establishing a stratigraphic framework of the single well; the method specifically comprises the steps of comprehensively utilizing field outcrop, geological test, well logging curve, well logging lithology and seismic data to identify sequence interfaces according to lithology catastrophe and curve change surface characteristics, and establishing a single well sequence stratum framework on a point.
For example, in fig. 2, the division of the sequence formation interface is mainly completed by a lithology change surface, a curve change surface and combination with well seismic calibration.
103, collecting well-connecting section and seismic section data in the ancient near stratum with the concave branch mouth, constructing according to a sequence stratum framework on the 'points', connecting according to the relevance of the data of the points to form sequence stratum characteristics on a line analysis line, calibrating a well-seismic sequence interface of the line on the seismic section, carrying out sequence stratum interpretation and sequence internal structure analysis, and establishing the 'line' sequence stratum framework. In particular to the development characteristic analysis on the sequence line.
As shown in fig. 3, the seismic interface is identified according to the seismic reflection features of ablation, upper surpass and lower surpass on the seismic section, the well-connecting section stratigraphic framework is established by using the single-well interface feature, and the stratigraphic framework of the basin is established on the basis of stratigraphic comparison and closure.
And 104, connecting the lines according to the established line-based stratigraphic framework of the stratigraphic hierarchy according to the data correlation of the lines to form a surface, compiling related graphs such as the thickness of the stratigraphic hierarchy and the like, and analyzing the distribution characteristics on the stratigraphic hierarchy. Specifically, the method comprises the steps of carrying out surface analysis on a line upper sequence stratum framework, carrying out surface scanning work of each three-level sequence system domain level of a key layer in a large three-dimensional region, compiling recognizable plane graphs such as a structural diagram, a stratum equal thickness diagram, a sand body thickness diagram, a percentage diagram and a sedimentary facies diagram of each system domain, analyzing the sequence space development characteristics and perfecting a basin-ground sequence stratum framework division scheme.
For example, fig. 4 is a graph constructed mainly according to a sequence stratum framework, and then the sequence stratum thickness data is extracted, a thickness map is compiled, and the spatial distribution characteristics of the sequence stratum thickness are analyzed in combination with a structure.
And 105, acquiring a three-dimensional data volume of the ancient near system stratum with the concave bifurcation, and performing sequence stratum development characteristic analysis on the three-dimensional space 'volume' of the full basin sequence stratum based on the development characteristics of the sequence on the surface to perfect the construction of a sequence stratum framework. The method specifically comprises the steps of utilizing a three-dimensional data body to carry out analysis on the space geometric forms and the distribution ranges of a sequence, a system domain, a quasi-sequence group and other types of sedimentary bodies in a three-dimensional space on the 'body' and the superposition relationship of the three-dimensional data body on the space-time, dissecting the distribution relationship of each sedimentary body of a target horizon on the three-dimensional space, establishing a structure-sequence-sedimentary facies pattern diagram on the three-dimensional space, analyzing the development characteristics of the sequence of the full basin three-dimensional space, and perfecting a construction scheme of a sequence stratum framework.
For example, fig. 5 is to analyze the change characteristics in the three-dimensional space of the sequence by extracting the thickness data of the sequence stratum, recovering the ancient landform morphology through de-compaction and denudation amount calculation.
And step 106, acquiring sequence development time series data according to a construction scheme on a sequence stratum framework body, analyzing the vertical evolution characteristics of the basin stratum sequence and the development characteristics of the sequence in the three-dimensional space vertical direction at different development stages, and completing the establishment of the sequence stratum framework on the full basin time. Specifically, by combining the sequence 'time' upgrowth series, on the basis of the analysis of 'point, line, surface and body', the evolution analysis of basin sequence lattice frame evolution-deposition filling process-structure action is developed, the basin sequence lattice frame construction scheme is further perfected, and the basin sequence lattice frame is established.
For example, fig. 6 mainly extracts the ancient landforms and sedimentary facies data of each sequence, restores the ancient landforms, overlaps the sedimentary facies, and analyzes the change characteristics of sedimentary development of each sequence on a time series.
Fig. 7, based on the multidimensional data analysis of point, line, surface, volume and time, a full basin sequence stratigraphic framework is finally established.
And step 107, determining and developing the matching relation of the basin generation, storage and covering in the sequence lattice by combining the oil and gas exploration practice.
The method for constructing and characterizing the continental facies stratigraphic framework based on the multi-dimensional data establishes the stratigraphic framework with sunken branches and openings (as shown in fig. 7) based on the comprehensive research of point, line, surface, body and time of basin stratigraphic framework. On the basis, the matching relation research of the basin generation, storage and covering in the sequence framework can be determined by combining oil-gas exploration, and scientific basis is provided for the oil-gas exploration.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. a continental facies sequence stratigraphic framework construction characterization method based on multi-dimensional data is characterized by comprising the following steps: the method comprises the following steps:
(1) Collecting and analyzing data; collecting data of the ancient near stratum of the notch depression, and screening and classifying the data;
(2) Collecting drilling cores, well logging and seismic data of different points in the ancient and near system stratum with the concave of the manifold, identifying a sequence stratum interface on a single well according to characteristics of lithologic catastrophe surfaces and curve change surfaces, analyzing sedimentary development characteristics in the sequence, dividing different levels of the sequence, and establishing a single well sequence stratum framework on the point;
(3) Collecting well-connecting section and seismic section data in the ancient near stratum with the notch of the manifold, constructing according to a sequence stratum framework on the points, connecting according to the relevance of the data of the points to form a line, calibrating a well-seismic sequence interface on the seismic section, explaining the sequence stratum and analyzing the internal structure of the sequence, and establishing a sequence stratum framework on the line;
(4) According to the established line-based sequence stratum framework, connecting the lines according to the data correlation of the lines to form a surface, compiling a sequence stratum thickness related graph, and analyzing the distribution characteristics on the surface of the sequence stratum;
(5) The method comprises the following steps of collecting three-dimensional data bodies of the ancient near system stratum with the concave bifurcation, establishing a three-dimensional space 'body' of the full basin sequence stratum based on the development characteristics of the sequence on the surface, perfecting the construction of a sequence stratum framework, and specifically comprising the following steps: analyzing the space geometric forms, distribution ranges and the space superposition relations of the sequence, the system domain, the quasi-sequence group and the sedimentary bodies in the three-dimensional space on the 'body' by utilizing the three-dimensional data body, dissecting the distribution relations of all the sedimentary bodies of the target horizon in the three-dimensional space, establishing a structure-sequence-sedimentary facies pattern diagram in the three-dimensional space, analyzing the development characteristics of the sequence of the full basin three-dimensional space, and perfecting the construction scheme of a sequence stratum framework;
(6) According to a construction scheme on a sequence stratum framework body, acquiring sequence development time series data, analyzing development characteristics and vertical evolution characteristics of a basin stratum sequence in a three-dimensional space at different development stages, and completing the construction of the sequence stratum framework on a full basin time, the method comprises the following specific steps: and (3) carrying out evolution analysis of basin stratum sequence framework evolution-deposition filling process-structure action by combining the time-up development series of the stratum sequence on the basis of the analysis of points, lines, surfaces and bodies, further perfecting a basin stratum sequence framework construction scheme and establishing a basin stratum framework.
2. The method for constructing and characterizing a continental facies stratigraphic framework based on multidimensional data as claimed in claim 1, wherein the data collected in step (1) is in particular multidimensional data related to well drilling, geology, earthquake and archaea.
3. The method for constructing and characterizing the stratigraphic framework of the continental facies sequence based on the multidimensional data as claimed in claim 1, wherein the concrete steps of the step (2) are as follows: developing the on-site development characteristic analysis of the sequence, comprehensively utilizing field outcrop, geochemical test, logging curve, logging lithology and seismic data to identify the sequence interface according to lithology catastrophe and curve change surface characteristics, and establishing a single-well sequence stratum framework.
4. The method for constructing and characterizing the stratigraphic framework of the continental facies sequence based on the multidimensional data as claimed in claim 1, wherein the concrete steps of the step (3) are as follows: developing sequence 'line' upper development characteristic analysis, identifying a seismic interface according to the seismic reflection characteristics of ablation, upper surpass and lower surpass on the seismic section, establishing a well-connecting section sequence stratum framework by using the characteristics of a single well interface, and establishing a sequence stratum framework of a basin on the basis of stratum contrast and closure.
5. The method for constructing and characterizing the stratigraphic framework of the continental facies sequence based on the multidimensional data as claimed in claim 1, wherein the concrete steps of the step (4) are as follows: aiming at the on-line sequence stratum framework, carrying out analysis on a 'surface', carrying out 'scanning' work of each three-level sequence system domain level of the key layer in a large three-dimensional region, compiling a structure diagram, a stratum isopachrome, a sand thickness diagram, a percentage diagram and a sedimentary facies diagram plane diagram of each identifiable system domain, analyzing the development characteristics of the sequence space, and perfecting the basin-ground sequence stratum framework division scheme.
6. The method for constructing and characterizing the stratigraphic framework of continental facies sequences based on multidimensional data as claimed in claim 1, further comprising the steps of: and determining the matching relation of the basin generation, storage and covering in the sequence grid by combining the oil and gas exploration practice.
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| CN109001840B (en) * | 2018-07-18 | 2019-08-09 | 中国地质大学（北京） | A kind of mud shale genetic analysis method and device |
| CN111983714B (en) * | 2019-05-24 | 2023-04-25 | 中国石油天然气股份有限公司 | Method and system for measuring field stratum based on sedimentary structure profile |
| CN112731561B (en) * | 2021-01-04 | 2023-05-12 | 中国石油天然气集团有限公司 | Reservoir space analysis method for carbonate rock |
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