CN103941286B - A kind of quick three-dimensional layer position based on horizontal navigation means of interpretation - Google Patents
A kind of quick three-dimensional layer position based on horizontal navigation means of interpretation Download PDFInfo
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Abstract
The present invention relates to a kind of quick three-dimensional layer position based on horizontal navigation means of interpretation, including: 1. the seismic data interpretation explained for layer position is processed, obtain seismic data cube；2. the isochronous surface near extract layer position, and fault interpretation achievement is projected on isochronous surface, the horizontal navigation section explained as layer position；3. layer position interpretation scheme is set up；4. selecting another not passing fault and can enter another seismic profile of next fault block, the layer position carrying out another seismic profile on seismic data cube is explained, so that layer position interpretation scheme is incorporated into next fault block；5. the layer position completing the whole district's all seismic profiles of each tomography is explained；6. the intersection point with fault interpretation is explained in computation layer position, is projected in by intersection point on the base map of earthquake work area, one by one the compilation each tomography plane polygon this layer of position, and the gridding carrying out layer position interpretation results under it retrains calculates, and obtains the structure grid surface of layer position；3.～6. 7. repeat, complete the whole district's all of layer position and explain.
Description
Technical field
The present invention relates to petroleum exploration domain one seismic interpretation method, especially with regard to a kind of based on horizontal navigation fast
Speed three-dimension layer position means of interpretation.
Background technology
Seismic data interpretation includes three piths such as fault interpretation, the explanation of layer position, target geological body explanation, at present
For the 3-d seismic data set of petroleum exploration and development stage acquisition process, seismic interpretation still uses conventional two-dimensional
Explain, three dimensions truly could not be realized and explain, because the inc problem of Existential Space is explained in layer position,
Therefore, layer position is explained and often be there is bigger error.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of space Guan Bi that ensure that and explain layer position based on flat
The quick three-dimensional layer position means of interpretation of face navigation.
For achieving the above object, the present invention takes techniques below scheme: 1, a kind of quick three-dimensional layer based on horizontal navigation
Position means of interpretation, it comprises the following steps: the geological data explained for layer position 1) carries out the explanation such as denoising, mixed road
Property process, to strengthen the lateral continuity of original earthquake data body lineups, obtain can fully highlighting layer position information
Seismic data cube；2) on seismic data cube, the isochronous surface near layer position to be explained is extracted, and by fault interpretation achievement
Project on isochronous surface, the horizontal navigation section that this isochronous surface is explained as layer position；3) cut into slices at horizontal navigation
Navigation directions under, avoid tomography and select a seismic profile crossing well or even well, combine and log well and seismic response features,
The layer position carrying out this seismic profile on seismic data cube is explained, sets up layer position interpretation scheme；4) cut into slices at horizontal navigation
Navigation directions under, from layer position interpretation scheme, select another not passing fault and the another of next fault block can be entered
One seismic profile, the layer position carrying out another seismic profile on seismic data cube is explained, layer position interpretation scheme to be introduced
To next fault block；It should be understood that for individually by the fault block of fault sealing, from the local choosing that fault throw is less
Selecting seismic profile, use the mode of seismic wave groups response characteristic contrast, layer position interpretation scheme is incorporated into this fault block, until
Each fault block of selected areas has the layer position interpretation scheme determined；5) in setting up selected areas, the layer position of all fault blocks solves
After releasing scheme, explain Density extraction main profile and cross-track seismic profile according to layer position, explain in the layer position of each fault block
Under the navigation directions of scheme, the layer position completing each seismic profile on seismic data cube is explained, until it is each disconnected to complete the whole district
The layer position of all seismic profile of layer is explained；6) intersection point with fault interpretation is explained in computation layer position, and intersection point is projected in earthquake
On the base map of work area, the compilation each tomography plane polygon this layer of position one by one, under the polygonal constraint of each fault plane,
The gridding carrying out layer position interpretation results calculates, and obtains the structure grid surface of layer position, the explanation of complete layer position；7) repeat
Step 3)～6), until completing the explanation of the whole district's all layers position.
Described step 2) in the fault interpretation achievement quick three-dimensional earthquake fault means of interpretation by a kind of horizontal navigation
Obtaining, it comprises the following steps: 1. to for fault interpretation geological data application variance, curvature, the tomography such as be concerned with
Edge detection method, carries out the explanatory process of tomography reinforcement, so that the breakpoint of tomography and section are at geological data section
On become apparent from, obtain fully highlighting the seismic data cube of fault information；2. on seismic data cube, extract purpose
The dropping cut slice of interval different time, i.e. extracts the isochronous surface that can reflect fault plane Distribution Characteristics, by this time
The horizontal navigation as fault interpretation of cutting into slices is cut into slices；3. horizontal navigation section on according to fault plane extended length by greatly
A tomography is chosen to little principle；4. it is drawn up seismic profile in the side being perpendicular to selected fault strike, selected
The Interpretation of profile of this tomography is completed at the subpoint of tomography section；5. the navigation plane of selected tomography explained and extract
On the seismic profile gone out, the interpretation results of tomography carries out gridding process according to fault interpretation density, after gridding being processed
Fault plane project to newly extract on another seismic profile to be explained, another seismic profile obtains and breaks clearly
Layer projection line, with the fault interpretation of the seismic profile that effectively navigates；6., under the navigation directions that fault plane is explained, press
Density is explained according to three-dimensional earthquake fault, and in tomography complex region local cypher, along being perpendicular to fault strike direction progressively
Roll and extract seismic profile and complete the fault interpretation of this seismic profile, until completing all seismic profiles of this tomography
Explanation；3.～6. 7. step is repeated, until completing all of fault interpretation of the whole district.
Due to the fact that and take above technical scheme, it has the advantage that owing to the present invention is to cut into slices at horizontal navigation
Guide under, around passing fault extract seismic profile, progressively the layer position interpretation scheme at well point is incorporated into each fault block,
Therefore, it is possible to ensure the space Guan Bi explained layer position, effectively reduce the impact that layer position is explained by tomography.
Accompanying drawing explanation
Fig. 1 is the horizontal navigation section schematic diagram that certain layer position, oil field is explained
Fig. 2 was any line seismic profile and the H1 layer position interpretation scheme schematic diagram of well B1, B2, B4 and B3
Fig. 3 was any line seismic profile and the H1 layer position interpretation scheme schematic diagram of well B4
Fig. 4 was any line seismic profile and the H1 layer position interpretation scheme schematic diagram of well B1
Fig. 5 was another seismic profile of any line and the H1 layer position interpretation scheme schematic diagram of well B1
Fig. 6 is that each fault block of H1 layer position interpretation scheme progressively extends schematic diagram
Fig. 7 is H1 layer position interpretation scheme subpoint and one Interpretation of profile achievement schematic diagram
Fig. 8 is H1 layer position interpretation scheme subpoint and another Interpretation of profile achievement schematic diagram
Fig. 9 ShiH1Ceng Wei whole district's seismic profile interpretation achievement plane projection and the polygonal schematic diagram of fault plane
Figure 10 is the schematic diagram of H1 layer position structure grid surface
Detailed description of the invention
With embodiment, the present invention is described in detail below in conjunction with the accompanying drawings.
The present invention provides one ensure that on the basis of a kind of quick three-dimensional fault interpretation method based on horizontal navigation
Quick three-dimensional layer position based on the horizontal navigation means of interpretation of the space Guan Bi that layer position is explained, comprises the following steps:
1) geological data explained for layer position is carried out the explanatory process such as denoising, mixed road, to strengthen original earthquake number
According to the lateral continuity of lineups, obtain fully highlighting the seismic data cube of layer position information.
2) on seismic data cube, extract the isochronous surface near layer position to be explained, and the fast of a kind of horizontal navigation will be applied
The speed fault interpretation achievement that completes of three-dimensional earthquake fault means of interpretation projects on isochronous surface, using this isochronous surface as
The horizontal navigation section that layer position is explained.Wherein, the quick three-dimensional earthquake fault means of interpretation of a kind of horizontal navigation, including
Following steps:
1. to for the geological data application variance of fault interpretation, curvature, the tomography edge detection method such as relevant, carry out
The explanatory process that tomography is strengthened, so that the breakpoint of tomography and section become apparent from geological data section, obtains energy
The seismic data cube of the most prominent enough fault information.
2. on seismic data cube, extract the dropping cut slice of interval of interest different time, i.e. extract and can reflect fault plane
The isochronous surface of Distribution Characteristics, cuts into slices this isochronous surface as the horizontal navigation of fault interpretation.
3. in horizontal navigation section, a tomography is chosen according to the principle that fault plane extended length is descending.
4. it is drawn up seismic profile in the side being perpendicular to selected fault strike, complete at the subpoint of selected tomography section
Become the Interpretation of profile of this tomography.
5. on the seismic profile navigation plane of selected tomography explained and extracted, the interpretation results of tomography is according to tomography solution
Releasing density and carry out gridding process, the fault plane after gridding being processed projects to newly extract another earthquake to be explained
On section, another seismic profile obtains tomographic projection line clearly, with the tomography solution of the seismic profile that effectively navigates
Release.
6., under the navigation directions that fault plane is explained, density is explained according to three-dimensional earthquake fault, and in tomography complex area
Territory local cypher, progressively rolls extraction seismic profile along being perpendicular to fault strike direction and completes the tomography of this seismic profile
Explain, until completing the explanation of all seismic profiles of this tomography.
3.～6. 7. step is repeated, until completing all of fault interpretation of the whole district.
3) under the navigation directions of horizontal navigation section, avoid tomography and select one cross well or connect the seismic profile of well, knot
Closing well logging and seismic response features, the layer position carrying out this seismic profile on seismic data cube is explained, sets up layer position and explains
Scheme.
4) horizontal navigation section navigation directions under, from layer position interpretation scheme, select another not passing fault and
Can enter another seismic profile of next fault block, the layer position carrying out another seismic profile on seismic data cube is explained,
So that layer position interpretation scheme is incorporated into next fault block.It should be understood that for individually by the fault block of fault sealing, from
The local seismic profile that selects that fault throw is less, the mode of employing seismic wave groups response characteristic contrast, layer position explanation side
Case is incorporated into this fault block.Until each fault block of selected areas has the layer position interpretation scheme determined.
5) in setting up selected areas after the layer position interpretation scheme of all fault blocks, according to layer position explain Density extraction main profile and
Cross-track seismic profile, under the navigation directions of the layer position interpretation scheme of each fault block, completes each on seismic data cube
The layer position of seismic profile is explained, until the layer position completing the whole district's all seismic profiles of each tomography is explained.
6) intersection point with fault interpretation is explained in computation layer position, is projected in by intersection point on the base map of earthquake work area, and compilation is each one by one
Tomography, in the plane polygon of this layer of position, under the polygonal constraint of each fault plane, carries out the net of layer position interpretation results
Format calculating, obtain the structure grid surface of layer position, the explanation of complete layer position.
7) step 3 is repeated)～6), until completing the explanation of the whole district's all layers position.
Specific embodiment is set forth below, to have a better understanding of the present invention.
Embodiment: explain for being rapidly completed the layer position in certain oil field, implement the structural feature in oil field, use the inventive method
Carry out the explanation of layer position, comprise the following steps:
1) geological data explained for layer position is carried out the explanatory process such as denoising, mixed road, to strengthen original earthquake number
According to the lateral continuity of lineups, obtain fully highlighting the seismic data cube of layer position information.
2) on seismic data cube, extract the isochronous surface near layer position to be explained, and the fast of a kind of horizontal navigation will be applied
The speed fault interpretation achievement that completes of three-dimensional earthquake fault means of interpretation projects on isochronous surface (as shown in Figure 1), at this
Preliminary establishment fault plane polygon on isochronous surface, the horizontal navigation section explained as layer position.
3) as shown in Fig. 2～Fig. 5, horizontal navigation cut into slices on, avoid tomography extract one simultaneously cross well B1, B2,
B4, B3, only cross B4, only crosses any line seismic profile of B1 and only crosses another seismic profile of any line of B1, in combination
Shake and logging response character, determine the interpretation scheme of H1 layer position.
4) as shown in Figure 6, on horizontal navigation is cut into slices, from the well point of well B1, B2, B3 and B4, progressively will
The interpretation scheme of H1 layer position extends to each fault block.
5) extract main profile and cross-track seismic profile, each fault block of seismic profile to be explained all will have fixed
The subpoint of H1 layer position interpretation scheme, i.e. rectangle stain a, b in Fig. 7 and Fig. 8, H1 layer position, accurate navigation location
Seismic profile interpretation.Explain that density rolls seismic profile according to layer position, and in structural feature complex region local cypher,
Under the navigation directions of the H1 layer position interpretation scheme determined, it is gradually completing whole district's Interpretation of profile of H1 layer position (such as Fig. 9
Shown in).
6) calculate H1 layer position and explain the intersection point with fault interpretation, intersection point is projected on the base map of earthquake work area, compiles one by one
Paint each tomography plane polygon (as shown in filled black region in Figure 10) in H1 layer position, at each tomography in H1 layer position
Under the constraint of plane polygon, the H1 layer position explained is carried out gridding calculating, obtains the structure grid of H1 layer position
Face, this grid surface can accurately reflect the Changing Pattern of the structure height fluctuating of H1 layer position (as in Figure 10, gray scale shows
Shown in region), the H1 layer position so far completed is explained.
7) step 3 is repeated)～6), explain until completing the whole district's all layers position.
The various embodiments described above are merely to illustrate the present invention, and the structure of the most each parts, connected mode and processing technology etc. are all
Can be varied from, every equivalents carried out on the basis of technical solution of the present invention and improvement, the most should not
Get rid of outside protection scope of the present invention.
Claims (2)
1. quick three-dimensional layer position based on a horizontal navigation means of interpretation, it comprises the following steps:
1) geological data explained for layer position is carried out denoising, the explanatory process in mixed road, to strengthen original earthquake number
According to the lateral continuity of body lineups, obtain fully highlighting the seismic data cube of layer position information；
2) on seismic data cube, the isochronous surface near layer position to be explained is extracted, and when fault interpretation achievement is projected to
Between in section, the horizontal navigation explained as layer position by this isochronous surface is cut into slices；
3) under the navigation directions of horizontal navigation section, avoid tomography and select one cross well or connect the seismic profile of well, knot
Closing well logging and seismic response features, the layer position carrying out this seismic profile on seismic data cube is explained, sets up layer position and explains
Scheme；
4) horizontal navigation section navigation directions under, from layer position interpretation scheme, select another not passing fault and
Can enter another seismic profile of next fault block, the layer position carrying out another seismic profile on seismic data cube is explained,
So that layer position interpretation scheme is incorporated into next fault block；It should be understood that for individually by the fault block of fault sealing, from
The local seismic profile that selects that fault throw is less, the mode of employing seismic wave groups response characteristic contrast, layer position explanation side
Case is incorporated into this fault block, until each fault block of selected areas has the layer position interpretation scheme determined；
5) in setting up selected areas after the layer position interpretation scheme of all fault blocks, according to layer position explain Density extraction main profile and
Cross-track seismic profile, under the navigation directions of the layer position interpretation scheme of each fault block, completes each on seismic data cube
The layer position of seismic profile is explained, until the layer position completing the whole district's all seismic profiles of each tomography is explained；
6) intersection point with fault interpretation is explained in computation layer position, is projected in by intersection point on the base map of earthquake work area, and compilation is each one by one
Tomography, in the plane polygon of this layer of position, under the polygonal constraint of each fault plane, carries out the net of layer position interpretation results
Format calculating, obtain the structure grid surface of layer position, the explanation of complete layer position；
7) step 3 is repeated)～6), until completing the explanation of the whole district's all layers position.
A kind of quick three-dimensional layer position based on horizontal navigation means of interpretation, it is characterised in that:
Described step 2) in fault interpretation achievement obtained by the quick three-dimensional earthquake fault means of interpretation of a kind of horizontal navigation,
It comprises the following steps:
1. to for the geological data application variance of fault interpretation, curvature, relevant tomography edge detection method, carry out
The explanatory process that tomography is strengthened, so that the breakpoint of tomography and section become apparent from geological data section, obtains energy
The seismic data cube of the most prominent enough fault information；
2. on seismic data cube, extract the dropping cut slice of interval of interest different time, i.e. extract and can reflect fault plane
The isochronous surface of Distribution Characteristics, cuts into slices this isochronous surface as the horizontal navigation of fault interpretation；
3. in horizontal navigation section, a tomography is chosen according to the principle that fault plane extended length is descending；
4. it is drawn up seismic profile in the side being perpendicular to selected fault strike, complete at the subpoint of selected tomography section
Become the Interpretation of profile of this tomography；
5. on the seismic profile navigation plane of selected tomography explained and extracted, the interpretation results of tomography is according to tomography solution
Releasing density and carry out gridding process, the fault plane after gridding being processed projects to newly extract another earthquake to be explained
On section, another seismic profile obtains tomographic projection line clearly, with the tomography solution of the seismic profile that effectively navigates
Release；
6., under the navigation directions that fault plane is explained, density is explained according to three-dimensional earthquake fault, and in tomography complex area
Territory local cypher, progressively rolls extraction seismic profile along being perpendicular to fault strike direction and completes the tomography of this seismic profile
Explain, until completing the explanation of all seismic profiles of this tomography；
3.～6. 7. step is repeated, until completing all of fault interpretation of the whole district.
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| CN108254784B (en) * | 2017-12-11 | 2020-09-08 | 中国石油天然气股份有限公司 | Fault identification method, device and system based on two-dimensional seismic data |
| CN110879681B (en) * | 2018-09-06 | 2021-08-03 | 中国石油天然气股份有限公司 | Method and device for displaying fault fracture strength |
| CN110441814B (en) * | 2019-07-29 | 2021-06-29 | 中国海洋石油集团有限公司 | Seismic profile iteration layer flattening method for deep water basin |
| CN110441821B (en) * | 2019-09-03 | 2020-10-09 | 中海石油(中国)有限公司 | A Fast Fault Interpretation Method Based on Variable Interpretation Network Density |
| CN110703334B (en) * | 2019-10-12 | 2021-02-05 | 中海石油(中国)有限公司 | Method for quickly explaining complex fault block oil field horizon |
| CN113625339B (en) * | 2020-05-08 | 2024-08-02 | 中国石油天然气集团有限公司 | Positive fault stratum thickness determination method and device |
| CN111856572B (en) * | 2020-07-06 | 2021-07-20 | 中国石油大学(北京) | A method and device for determining the width of a fault fracture zone |
| CN113960672B (en) * | 2021-10-22 | 2023-09-22 | 中国石油大学(华东) | Method, system and medium for evaluating polygonal fault function in fluid migration process |
| CN116736380B (en) * | 2023-06-14 | 2024-11-05 | 重庆地质矿产研究院 | A method for batch production and accurate characterization of fracture drop-strike curves |
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