CN107238860A - The modeling method and system of D geology model - Google Patents
The modeling method and system of D geology model Download PDFInfo
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- CN107238860A CN107238860A CN201610183149.7A CN201610183149A CN107238860A CN 107238860 A CN107238860 A CN 107238860A CN 201610183149 A CN201610183149 A CN 201610183149A CN 107238860 A CN107238860 A CN 107238860A
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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. for interpretation or for event detection
- G01V1/282—Application of seismic models, synthetic seismograms
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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
- G01V2210/66—Subsurface modeling
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Abstract
Disclose the modeling method and system of a kind of D geology model.This method can include:Geologic body interface based on geological model, builds geometrical model framework;Based on the geometrical model framework, closed cell is recognized, two-dimentional geology geometrical model is obtained;And based on the two-dimentional geology geometrical model, geological property parameter is filled to closed cell, obtain two-dimentional solid models of geological entities.
Description
Technical field
The present invention relates to field of seismic exploration, more particularly, to a kind of modeling method of D geology model
And system.
Background technology
In field of seismic exploration, forward simulation technology runs through earthquake data acquisition, seism processing and earthquake
The links of data interpretation, are the bases for carrying out seismic inversion, are to recognize with Study of The Underground geologic structure most
For effective means.Forward simulation includes physical and numerical modeling.Physical analogy have intuitive it is strong,
With actual conditions closer to advantage, but model modification is more difficult, and the computational efficiency of numerical simulation is higher,
Parameter modification is convenient, and cost has great advantage than physical analogy, therefore uses more extensive.
Earthquake numerical simulation technology is exactly to make appropriate simplification to actual complicated ball medium, to seismic wave
Propagation law also makees appropriate simplification, then specific at certain with mathematics or physics technique study seismic wave
Simplified model in the characteristics of propagate, for simulating propagation characteristic of the seismic wave in geological model, and then refer to
Lead the theoretical research and production work of each side such as the field acquisition, processing and explanation of seismic prospecting.Although,
It is three-dimensional closer actual, but be due to that amount of calculation and work complexity are big, D integral pin-fin tube does not substitute two
Tie up forward modeling.
The foundation of geological model is first link during seismic forward simulation.It is to be generally based on people
Machine is interacted, and simplified geologic concept model is converted into the recognizable geometrical model of computer, then converted again
For physical model or grid model with physical attribute.That is it is general to set up doing for grid model
Method is typically all to be based on geometrical model, that is, uses for reference the thought of stratified model, geometric framework model is considered as into simplification
Stratigraphic model, and think in geometric framework model that each closed cell is uniform dielectric, then by each closing
The attributes such as different speed, density are set in unit, physical model is obtained.Net finally is carried out to physical model
Format acquisition grid model.In this process, Geometric Modeling is most to close again in other words for the foundation of geometrical model
One step of key.Geometric Modeling Method common at present all uses the thinking of two-dimensional closed structural modeling.But
When implementing but have difference.A kind of be achieved in that by main unit of the polygon of closure is built
Mould.It is, using initial model region as an initial closed polygon, then to be used in the initial polygon
Mouse draws polygon one by one in the way of man-machine interaction, and polygonal the first end points can be connected automatically
A closed polygon is formed, model is collectively formed by these small polygons and initial polygon.Another
It is achieved in that with point, section, line and face to describe a full two-dimensional model of a closed structure.Identical geology category
Property be an autonomous closure geologic element, geological model is divided into autonomous closure one by one according to geological property
Geologic element, all autonomous closure geologic elements are spatially distributed lines up in order, the set so constituted
Body just constructs a D geology model.
Inventor has found that the modeling pattern of existing D geology model is complex, and modeling efficiency is relatively low.
Therefore, it is necessary to develop a kind of modeling method and system of efficient D geology model.
The information for being disclosed in background of invention part is merely intended to deepen the general background technology to the present invention
Understanding, and be not construed as recognizing or imply in any form the information structure be people in the art
Prior art well known to member.
The content of the invention
The present invention proposes the modeling method and system of a kind of D geology model, and it can utilize Points And lines section
Geometrical model framework is built, and then obtains two-dimentional geology geometrical model, physical model and/or grid model, it is real
The now modeling of efficient D geology model.
According to an aspect of the invention, it is proposed that a kind of modeling method of D geology model.Methods described can
With including:Geologic body interface based on geological model, builds geometrical model framework;Based on the geometry mould
Type framework, recognizes closed cell, obtains two-dimentional geology geometrical model;And based on the two-dimentional geology geometry
Model, geological property parameter is filled to closed cell, obtains two-dimentional solid models of geological entities.
According to another aspect of the invention, it is proposed that a kind of modeling of D geology model, the system
It can include:For the geologic body interface based on geological model, the unit of geometrical model framework is built;With
In based on the geometrical model framework, closed cell is recognized, the unit of two-dimentional geology geometrical model is obtained;With
And for based on the two-dimentional geology geometrical model, geological property parameter to be filled to closed cell, obtain two dimension
The unit of solid models of geological entities.
Methods and apparatus of the present invention has other characteristics and an advantage, and these characteristics and advantage are from being incorporated herein
In accompanying drawing and subsequent specific embodiment in will be apparent, or by the accompanying drawing being incorporated herein
Stated in detail with subsequent specific embodiment, these the drawings and specific embodiments are provided commonly for explaining this
The certain principles of invention.
Brief description of the drawings
By the way that exemplary embodiment of the present is described in more detail with reference to accompanying drawing, it is of the invention it is above-mentioned with
And other purposes, feature and advantage will be apparent, wherein, in exemplary embodiments of the present invention,
Identical reference number typically represents same parts.
The flow chart for the step of Fig. 1 shows the modeling method according to the D geology model of the present invention.
Fig. 2 shows the signal of the target geological model of the modeling method of the D geology model according to the present invention
Figure.
Fig. 3 shows the structure geometrical model framework of the modeling method of the D geology model according to the present invention
Schematic diagram.
Fig. 4 shows the two-dimentional geology geometry mould of the acquisition of the modeling method of the D geology model according to the present invention
The schematic diagram of type.
Embodiment
The present invention is more fully described below with reference to accompanying drawings.Although showing the preferred reality of the present invention in accompanying drawing
Example is applied, however, it is to be appreciated that may be realized in various forms the present invention without should be by embodiments set forth here
Limited.On the contrary, these embodiments are provided so that the present invention is more thorough and complete, and can be by
The scope of the present invention intactly conveys to those skilled in the art.
Embodiment 1
The flow chart for the step of Fig. 1 shows the modeling method of D geology model.
In this embodiment, it can be included according to the modeling method of the D geology model of the present invention:Step 101,
Geologic body interface based on geological model, builds geometrical model framework;Step 102, based on the geometry mould
Type framework, recognizes closed cell, obtains two-dimentional geology geometrical model;And step 103, based on the two dimension
Geology geometrical model, geological property parameter is filled to closed cell, obtains two-dimentional solid models of geological entities.
The embodiment builds geometrical model framework by using Points And lines section, and then obtains two-dimentional geology geometry mould
Type, physical model and/or grid model, realize the modeling of efficient D geology model.
The following detailed description of the specific steps of the modeling method of the D geology model according to the present invention.
Build geometrical model framework
In one example, can the geologic body interface based on geological model, structure geometrical model framework.
In one example, building geometrical model framework can include:Geologic body boundary based on geological model
Face, geometrical model framework is built using Points And lines section;And increase, delete or pull control in the middle of line segment
It is processed, so that whole line segment more approaches geologic body interface.
Specifically, the present invention uses layer structure, and the geometric Framework that model is set up using point, line segment is (several
What model framework).Wherein, layer structure refers in sequence, from the bottom to top, the distribution of stratum layered,
It is uniform that every layer, which has inside unified layer attribute, such as speed, density, i.e. stratum,.In earthquake just
Drill in simulation, be to demarcate layer position sequence number successively according to the order of locus from top to bottom in most cases, and
Its specific geological epoch is not considered and forms order.Therefore, two-dimensional layered structure model can be described as by
The stratum line of demarcation of penetration model right boundary is separated into many simply connected ribbon blocks, and same area
There is the stratum of unified attribute in block.
The present invention builds geometrical model framework just with point, line segment, is similarly to be delineated on paper with pen.
A model scope is defined by the user in the present invention first, and this scope is equivalent to paper.Then user can use
Mouse arbitrarily delineates any figure in this model scope, and mouse is equivalent to pen.Certainly in real work,
User can not possibly arbitrarily delineate, but be delineated according to certain geological structure.At this moment user plane is to being only
Line segment with two end points, i.e., represent the interface of geologic body with line segment, and randomness represents this and hooked
Picture adapts to any complicated structural interface, i.e., one interface can be made up of some end to end line segments,
It can also increase, delete or pull control point in the middle of a line segment to cause whole line segment more to approach boundary
Face form.User can preserve result at any time in this process, so that next time continues to delineate on this basis,
Or geometrical model framework is successfully saved as afterwards delineating.In this process, user need not very be concerned about this
The geological Significance at a little interfaces, as long as the geometric shape delineated is consistent with the form of geological model.
By the above-mentioned means, the geometrical model framework of D geology model can be constructed using Points And lines section.
Obtain two-dimentional geology geometrical model
In one example, the geometrical model framework can be based on, closed cell is recognized, obtained two-dimensionally
Matter geometrical model.
In one example, obtaining two-dimentional geology geometrical model can include:It is automatic using triangulation methodology
Recognize closed cell;And check whether each closed cell consistent with geological model, and closed cell with
In the case that geological model is inconsistent, corresponding modification geometrical model framework.
Specifically, after geometrical model framework establishment is good, it is possible to use triangulation methodology automatic identification is sealed
Unit is closed, so that geometrical model framework is rapidly converted into geometrical model, geometrical model modeling efficiency is improved.
Because triangulation is very fast, and do not omit, therefore sealed using triangulation automatic identification
Close unit efficiencies very high.Furthermore, it is possible to check whether each closed cell is consistent with geological model, if
It is inconsistent, geometrical model framework can accordingly be changed.But check the process with modification than traditional people
Work directly draws closed cell will fast, when especially model is complicated, and efficiency closes single than artificial directly draw
Member is much higher.
By the above-mentioned means, the geometrical model of D geology model can be obtained.
Obtain two-dimentional solid models of geological entities
In one example, the two-dimentional geology geometrical model can be based on, to closed cell filling geology category
Property parameter, obtain two-dimentional solid models of geological entities., can be to closing after two-dimentional geology geometrical model is built up
Unit fill area attribute, you can the two-dimentional solid models of geological entities of generation.Preferably, the geological property parameter can be with
Including velocity of longitudinal wave, shear wave velocity, density, porosity, fluid saturation and Thomsen (thomson)
Anisotropic parameters etc..
It will be appreciated by those skilled in the art that the geological property parameter filled is not limited to this, it can use
Various conventional geology property parameters commonly used in the art, the two-dimentional solid models of geological entities of generation.
Obtain two-dimentional geology grid model
In one example, two-dimentional geology can be obtained to the two-dimentional solid models of geological entities gridding
Grid model.
Two-dimentional geology geometrical model, the entity obtained according to the modeling method of the D geology model of the present invention
Model and/or grid model can be exported at any time, for the seismic forward simulation of different purposes.
Using example
For ease of understanding the scheme and its effect of the embodiment of the present invention, a concrete application example given below.
It will be understood by those skilled in the art that the example is only for the purposes of understanding the present invention, its any detail is not
It is intended to limit the present invention in any way.
Fig. 2 shows the signal of the target geological model of the modeling method of the D geology model according to the present invention
Figure;Fig. 3 shows the structure geometrical model framework of the modeling method of the D geology model according to the present invention
Schematic diagram;Fig. 4 shows that the two-dimentional geology of the acquisition of the modeling method of the D geology model according to the present invention is several
The schematic diagram of what model.In Fig. 2-Fig. 4, X-axis represents the distance of horizontal direction, and Z axis represents vertical direction
Distance, unit be rice (m).
As shown in Fig. 2 first, determining the scope of the scope of the two dimensional cross-section, i.e. X, Z both direction.
Then, as shown in figure 3, according to the geologic section in the two dimensional cross-section, set up with the mode of Points And lines section with
The corresponding geometric framework model of this geologic section.For the geometric framework model shown in Fig. 3, triangulation is used
Algorithm rapidly carries out subdivision, so as to automatically identify obturator therein, as shown in Figure 4.Now can be with
Whether comparison diagram 4 and Fig. 2 is consistent, if inconsistent, Fig. 3 can be modified so that the two is consistent,
So as to obtain the geometrical model consistent with geologic section.For the closing block identified, i.e. geologic body,
It can be activated and be operated, be i.e. fill area attribute, such as velocity of longitudinal wave and shear wave velocity.By all pieces
Body is all filled finish after, it is possible to by this two dimensional cross-section dx, dz carries out gridding, obtains the two dimension and cuts open
Two-dimentional geology grid model on face.
It can be seen that, according to the modeling method of the D geology model of the present invention, it can be built using Points And lines section several
What model framework, and then two-dimentional geology geometrical model, physical model and/or grid model are obtained, realize efficient
D geology model modeling.
It will be understood by those skilled in the art that the purpose of the description above to embodiments of the invention is only for example
Illustrate to property the beneficial effect of embodiments of the invention, be not intended to limit embodiments of the invention to
Any example gone out.
Embodiment 2
Embodiments in accordance with the present invention are there is provided a kind of modeling of D geology model, and the system can
With including:For the geologic body interface based on geological model, the unit of geometrical model framework is built;For
Based on the geometrical model framework, closed cell is recognized, the unit of two-dimentional geology geometrical model is obtained;And
For based on the two-dimentional geology geometrical model, geological property parameter to be filled to closed cell, obtain two-dimensionally
The unit of matter physical model.
The embodiment builds geometrical model framework by using Points And lines section, and then obtains two-dimentional geology geometry mould
Type, physical model and/or grid model, realize the modeling of efficient D geology model.
In one example, the modeling of the D geology model can also include:For to described two
Solid models of geological entities gridding is tieed up, the unit of two-dimentional geology grid model is obtained.
In one example, building geometrical model framework can include:Geologic body boundary based on geological model
Face, geometrical model framework is built using Points And lines section;And increase, delete or pull control in the middle of line segment
It is processed, so that whole line segment more approaches geologic body interface.
In one example, obtaining two-dimentional geology geometrical model can include:It is automatic using triangulation methodology
Recognize closed cell;And check whether each closed cell consistent with geological model, and closed cell with
In the case that geological model is inconsistent, corresponding modification geometrical model framework.
In one example, the geological property parameter can include velocity of longitudinal wave, shear wave velocity, density,
Porosity, fluid saturation and Thomsen (thomson) anisotropic parameters etc..
It will be understood by those skilled in the art that the purpose of the description above to embodiments of the invention is only for example
Illustrate to property the beneficial effect of embodiments of the invention, be not intended to limit embodiments of the invention to
Any example gone out.
It is described above various embodiments of the present invention, described above is exemplary, and non-exclusive,
And it is also not necessarily limited to disclosed each embodiment.In the scope and spirit without departing from illustrated each embodiment
In the case of, many modifications and changes will be apparent from for those skilled in the art.
The selection of term used herein, it is intended to best explain the principle of each embodiment, practical application or to market
In technology improvement, or make the art other those of ordinary skill be understood that it is disclosed herein each
Embodiment.
Claims (10)
1. a kind of modeling method of D geology model, including:
Geologic body interface based on geological model, builds geometrical model framework;
Based on the geometrical model framework, closed cell is recognized, two-dimentional geology geometrical model is obtained;And
Based on the two-dimentional geology geometrical model, geological property parameter is filled to closed cell, obtained two-dimensionally
Matter physical model.
2. the modeling method of D geology model according to claim 1, further comprises:
To the two-dimentional solid models of geological entities gridding, two-dimentional geology grid model is obtained.
3. the modeling method of D geology model according to claim 1, wherein, build geometrical model
Framework includes:
Geologic body interface based on geological model, geometrical model framework is built using Points And lines section;And
Increase, delete or pull control point in the middle of line segment, so that whole line segment more approaches geologic body point
Interface.
4. the modeling method of D geology model according to claim 1, wherein, obtain two-dimentional geology
Geometrical model includes:
Using triangulation methodology automatic identification closed cell;And
Check whether each closed cell is consistent with geological model, and it is inconsistent with geological model in closed cell
In the case of, corresponding modification geometrical model framework.
5. the modeling method of D geology model according to claim 1, wherein, the geological property
Parameter is each including velocity of longitudinal wave, shear wave velocity, density, porosity, fluid saturation, and Thomsen
Anisotropy parameter.
6. a kind of modeling of D geology model, including:
For the geologic body interface based on geological model, the unit of geometrical model framework is built;
For based on the geometrical model framework, recognizing closed cell, the list of two-dimentional geology geometrical model is obtained
Member;And
For based on the two-dimentional geology geometrical model, geological property parameter to be filled to closed cell, two are obtained
Tie up the unit of solid models of geological entities.
7. the modeling of D geology model according to claim 6, further comprises:
For to the two-dimentional solid models of geological entities gridding, obtaining the unit of two-dimentional geology grid model.
8. the modeling of D geology model according to claim 6, wherein, build geometrical model
Framework includes:
Geologic body interface based on geological model, geometrical model framework is built using Points And lines section;And
Increase, delete or pull control point in the middle of line segment, so that whole line segment more approaches geologic body point
Interface.
9. the modeling of D geology model according to claim 6, wherein, obtain two-dimentional geology
Geometrical model includes:
Using triangulation methodology automatic identification closed cell;And
Check whether each closed cell is consistent with geological model, and it is inconsistent with geological model in closed cell
In the case of, corresponding modification geometrical model framework.
10. the modeling of D geology model according to claim 6, wherein, the geology category
Property parameter include velocity of longitudinal wave, shear wave velocity, density, porosity, fluid saturation, and Thomsen
Anisotropic parameters.
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