CN104424840A - Manufacturing method of earthquake physical model - Google Patents
Manufacturing method of earthquake physical model Download PDFInfo
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- CN104424840A CN104424840A CN201310390789.1A CN201310390789A CN104424840A CN 104424840 A CN104424840 A CN 104424840A CN 201310390789 A CN201310390789 A CN 201310390789A CN 104424840 A CN104424840 A CN 104424840A
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- physical model
- seismic physical
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- design structure
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/06—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes for surveying; for geography, e.g. relief models
Abstract
The invention discloses a manufacturing method of an earthquake physical model. The manufacturing method comprises the following steps of 1, drawing a design structure diagram of the earthquake physical model; 2, according to the design structure diagram, manufacturing the earthquake physical model layer by layer; 3, collecting two-dimensional data of the earthquake physical model, and providing reference for the actual effect of the earthquake physical model through the two-dimensional data; 4, collecting three-dimensional data of the earthquake physical model, and providing reference for the actual effect of the earthquake physical model through the three-dimensional data. The manufacturing method disclosed by the embodiment has the advantage that the specific manufacturing steps are provided for the manufacturing of the earthquake physical model, the two-dimensional data and the three-dimensional data are collected, the manufacturing accuracy of the earthquake physical model is timely checked, and the applicable measures are taken to modify the earthquake physical model specific to the checking result, so the manufacturing accuracy of the earthquake physical model is guaranteed, the qualified rate of the manufactured earthquake physical model is higher, the manufacturing efficiency is improved, and the production cost is reduced.
Description
Technical field
The present invention relates to seismic exploration technique field, particularly a kind of method for making of seismic physical model.
Background technology
In seismic prospecting, earthquake simulation technology plays an important role, and it mainly contains following several purposes: 1. the correctness can checking all kinds of dielectric resilient ripple theory, promotes the development of elastic wave theory; 2., for seismic prospecting provides the recording geometry optimal design based on model, ensure the quality of field earthquake data acquisition; 3. for seism processing provides normal data body, the correctness of inspection seismic processes; 4. can check the correctness of seismic data interpretation result.
Earthquake simulation technology is divided into numerical simulation and physical model to simulate two kinds, earthquake numerical simulation has the features such as quick, easy and cheap, but limit by assumed condition, analog result and actual conditions have different, comparatively speaking, seismic physical modeling is truer, and more can reflect the feature of actual conditions, earthquake simulation model completely can the P3D tectonic structure of mould.But prior art does not have ripe method to make seismic physical model, cannot ensure to make the requirement of seismic physical model in precision and accuracy.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
The method that prior art lacks specification makes seismic physical model, systematic method is not had when practical operation makes seismic physical model, theoretical specification and technological guidance can not be provided in manufacturing process, therefore the requirement of seismic physical model precision and accuracy cannot be ensured, and operationally lack purpose in prior art, when may cause making, complex steps or the step taked fall flat, therefore when making seismic physical model, efficiency is lower, owing to lacking technological guidance, the model qualification rate produced is lower, thus causes cost to waste.
Summary of the invention
Lacking the problem of method for normalizing in order to solve prior art making seismic physical model, embodiments providing a kind of method for making of seismic physical model.Described technical scheme is as follows:
As shown in Figure 1, embodiments provide a kind of method for making of seismic physical model, described method for making comprises:
Step 1, draws the design structure figure of described seismic physical model;
Step 2, according to described design structure figure, seismic physical model described in layer-by-layer preparation;
Step 3, gathers the 2-D data of described seismic physical model, provides reference by described 2-D data to described seismic physical model actual effect;
Step 4, gathers the three-dimensional data of described seismic physical model, provides reference by described three-dimensional data to described seismic physical model actual effect.
Further, described step 1 specifically comprises:
Step 11, draws the design structure figure of described seismic physical model layer position, fault block and section;
Step 12, takes out ray examination to described design structure figure;
According to check result, step 13, judges whether described design structure figure meets demand, if so, perform step 2, if not, adjust described design structure figure.
As preferably, the line of taking out described design structure figure being taken out to ray examination is spaced apart: the line of taking out at described seismic physical model two ends is spaced apart 15 centimetres, and the line of taking out in the middle of described seismic physical model is spaced apart 5 centimetres.
Further, described step 12 specifically comprises:
Along outstanding tectonic direction, in described design structure figure, the coordinate of correspondence proving survey line reads corresponding depth value;
According to described depth value, draw the design profile figure of described inspection survey line;
Judge whether described design structure figure meets demand by design profile figure.
As preferably, described step 2 specifically comprises:
Seismic physical model described in layer-by-layer preparation, and morphometry is carried out to seismic physical model every layer described;
Contrast the gap of the data of described morphometry and the data of described design structure figure, if described gap is positioned at specification error scope, then performs step 3, if not, then described seismic physical model is modified.
Further, described step 3 specifically comprises:
Step 33, gathers the 2-D data of described seismic physical model;
Step 34, carries out depth shift process to described 2-D data;
Step 35, contrasts the depth shift result of described 2-D data and the data of described morphometry, determines whether the making precision of described seismic physical model and the quality of described two dimensional data acquisition meet demand according to comparing result.
As preferably, described step 3 also comprises the step 32 be positioned at before described step 33, described step 32 is specially: carry out 2-D data pilot production to described seismic physical model, determined that by pilot production result whether the optimum configurations of the collecting device of described 2-D data is accurate, if, perform step 33, if not, debug described collecting device.
Further, described step 3 also comprises the step 31 be positioned at before described step 32, and described step 31 is specially: described seismic physical model is placed in tank and soaks.
As preferably, the soak time of described seismic physical model is for being more than or equal to 15 days.
Further, described step 4 specifically comprises:
Gather the three-dimensional data of described seismic physical model;
Depth shift process is carried out to described three-dimensional data;
The depth shift result of described three-dimensional data and the data of described morphometry are contrasted, determines whether the quality of described seismic physical model meets demand according to comparing result.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
The embodiment of the present invention provides concrete making step for making seismic physical model, and seismic physical model is carried out to the collection of 2-D data and three-dimensional data after completing, the accuracy that can seismic physical model checked in time to make, and corresponding measure can be taked to modify to it, to ensure the precision that seismic physical model makes for the result of inspection; Making step provided by the invention, making for seismic physical model provides accurate theoretical specification and technological guidance, manufacturing process is made to have logic and purpose, also ensure that the precision that seismic physical model makes and accuracy simultaneously, realistic requirement, the seismic physical model qualification rate produced is higher, and make efficiency is also improved, thus has saved production cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the method for making process flow diagram of the seismic physical model that the embodiment of the present invention provides.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
As shown in Figure 1, embodiments provide a kind of method for making of seismic physical model, described method for making comprises:
Step 1, draws the design structure figure of described seismic physical model;
Step 2, according to described design structure figure, seismic physical model described in layer-by-layer preparation;
Step 3, gathers the 2-D data of described seismic physical model, provides reference by described 2-D data to described seismic physical model actual effect;
Step 4, gathers the three-dimensional data of described seismic physical model, provides reference by described three-dimensional data to described seismic physical model actual effect.
Wherein, according to the structural map in the simulation work area of reality, obtain and draw the necessary data of seismic physical model design structure figure, according to data, design structure figure is drawn out, secondly seismic physical model is made according to drawn design structure figure, due to the making accuracy of model will be ensured, in manufacturing process, therefore take the mode of layer-by-layer preparation; Moreover two and three dimensions data acquisition is carried out to the physical model made, check seismic physical model whether to get a desired effect according to gathered data, do not meet the requirements of and can modify on existing making basis.
The embodiment of the present invention provides concrete making step for making seismic physical model, and seismic physical model is carried out to the collection of 2-D data and three-dimensional data after completing, by the contrast of data, the accuracy that can seismic physical model checked in time to make, and corresponding measure can be taked to modify to it, to ensure the precision that seismic physical model makes for the result of inspection; Making step provided by the invention, making for seismic physical model provides accurate theoretical specification and technological guidance, manufacturing process is made to have logic and purpose, also ensure that the precision that seismic physical model makes and accuracy simultaneously, realistic requirement, the seismic physical model qualification rate produced is higher, and make efficiency is also improved, thus has saved production cost.
Further, described step 1 specifically comprises:
Step 11, draws the design structure figure of the different fault block of described seismic physical model and section;
Step 12, takes out ray examination to described design structure figure;
According to check result, step 13, judges whether described design structure figure meets demand, if so, perform step 2, if not, adjust described design structure figure.
Wherein, in the embodiment of the present invention, the design structure figure of seismic physical model layer position, fault block and section is drawn, and ray examination is taken out to design structure figure, observe intuitively with taking out the result that ray examination obtains, both can judge that whether design structure figure was accurate, and whether meet designing requirement, general by observing in design structure diagram whether occur that layer position intersects, the accuracy of design structure figure is judged intuitively with this, if defective, can modify to design structure figure, guarantee that subsequent fabrication process can accurately carry out.
As preferably, the line of taking out described design structure figure being taken out to ray examination is spaced apart: the take out line of described seismic physical model constructivity to mild two ends is spaced apart 15 centimetres, and due to seismic physical model center section structure comparatively complexity, the difficulty of design is relatively large, easily go wrong, therefore the line of taking out of seismic physical model center section is spaced apart 5 centimetres.
Further, described step 12 specifically comprises:
Along outstanding tectonic direction, in described design structure figure, read often opening the corresponding depth value of correspondence proving line coordinates on design structure figure and record, according to described depth value, the design profile figure of described inspection survey line is drawn by Become the picture software, the design profile figure obtained by taking out ray examination can direct vision, general by observing in design profile figure whether occur that layer position intersects, can judge whether described design structure figure meets demand, thus corresponding amendment can be made to undesirable design structure figure part.
As preferably, described step 2 specifically comprises:
Seismic physical model described in layer-by-layer preparation, and morphometry is carried out to seismic physical model every layer described;
Contrast the gap of the data of described morphometry and the data of described design structure figure, if described gap is positioned at specification error scope, then performs step 3, if not, then described seismic physical model is modified.
Wherein, the making of actual seismic physical model is carried out according to the design structure figure in step 1, in order to improve the accuracy of modelling, in manufacturing process, layering makes, and morphometry is carried out in every layer of manufacturing process, and the data of the data obtained by morphometry and design structure figure contrast, if comparing result exceeds predetermined error range, then can modify to this layer in time, so can Timeliness coverage righting a wrong, avoid carrying out loaded down with trivial details inspection step to it again after completing model, add the reliability of seismic physical model.
Further, described step 3 specifically comprises:
Step 33, gathers the 2-D data of described seismic physical model;
Step 34, carries out depth shift process to described 2-D data;
Step 35, contrasts the depth shift result of described 2-D data and the data of described morphometry, determines whether the making precision of described seismic physical model and the quality of described two dimensional data acquisition meet demand according to comparing result.
Wherein, the 2-D data quality gathered will meet collection requirement, if data are undesirable, need to re-start collection, in the embodiment of the present invention, satisfactory 2-D data is carried out depth shift process, the data of the morphometry in the depth shift result of described 2-D data and step 2 are contrasted, the integral manufacturing quality of offset data precision and model can be reflected by comparing result, such as by checking whether section has the abnormal occurrence such as X-wave and bright spot, thus to reach a conclusion be whether the overall image quality of section is better, whether offset accuracy can meet the demands, and whether the quality of the 2-D data gathered meets requirement of experiment, can again make an amendment for undesirable part, so namely complete the quality control of two-dimentional acquisition phase.
As preferably, described step 3 also comprises the step 32 be positioned at before described step 33, described step 32 is specially: carry out 2-D data pilot production to described seismic physical model, determined that by pilot production result whether the optimum configurations of the collecting device of described 2-D data is accurate, if, perform step 33, if not, debug described collecting device, wherein, in the embodiment of the present invention, if found that according to pilot production, the signal to noise ratio (S/N ratio) of model is lower, understratum reflected energy is more weak, image data quality is undesirable, may be because the optimum configurations of the collecting device of 2-D data is not accurate enough, so, the parameters intensifying transducer probe in collecting device can be revised, and change probe connection line, thus eliminate external conductive to the impact of collection signal, or the silastic-layer of model topmost can be peelled off, because the absorption of rubber layer to energy is larger for this reason, energy is absorbed on lower floor and produces larger impact, namely the debugging of collecting device is completed, after collecting device debugging, again carry out pilot production, repeatable operation, until pilot production result meets quality requirements.
Further, described step 3 also comprises the step 31 be positioned at before described step 32, and described step 31 is specially: described seismic physical model is placed in tank and soaks.
As preferably, the soak time of described seismic physical model, for being more than or equal to 15 days, so can ensure the coupling effect of model and water, eliminates bubble to the impact of acquisition quality.
Further, described step 4 specifically comprises:
Gather the three-dimensional data of described seismic physical model;
Depth shift process is carried out to described three-dimensional data;
The depth shift result of described three-dimensional data and the data of described morphometry are contrasted, determines whether the quality of described seismic physical model meets demand according to comparing result.
Wherein, the three-dimensional data quality of collection will meet collection requirement, if data are undesirable, needs to re-start collection, when carrying out 3-D data collection, needs to carry out some preliminary works, such as, optimizes the design of recording geometry, seismic physical model acquisition system is installed thousand points of instrument that positioning precision is higher, and this is to prevent when power-off transducer probe from returning initial point, reorientating precision, in order to guaranteed water level is constant, mechanical water filling device is installed and keeps water level constant, air-conditioning equipment and thermometer are installed in addition additional, the accuracy of 3-D data collection is guaranteed with this, and because three-dimensional acquisition is comparatively loaded down with trivial details, therefore bilateral collection is adopted to improve collecting efficiency, satisfactory three-dimensional data is carried out depth shift process, the depth shift result of described three-dimensional data and the data of described morphometry are contrasted, the comparative analysis of three-dimensional data can be optional position, any direction, the making quality of whole model can be checked like this, whether inspection model there is interlayer stratification, whether the consolidation of material is good, build and whether occur the problems such as bubble, again guarantee that the seismic physical model made can meet real requirement.
In the present invention, each step has inspection and correction link, step 1 is for taking out ray examination, step 2 is morphometry, step 3 is two dimensional data acquisition and migration processing, step 4 is 3-D data collection and migration processing, can Timeliness coverage each step institute produced problem by these 4 test stages, and can solve in time, ensure the accuracy of each step, to prevent from carrying out scrutiny program loaded down with trivial details in a large number after completing model, while raising accuracy, also improve make efficiency.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a method for making for seismic physical model, is characterized in that, described method for making comprises:
Step 1, draws the design structure figure of described seismic physical model;
Step 2, according to described design structure figure, seismic physical model described in layer-by-layer preparation;
Step 3, gathers the 2-D data of described seismic physical model, provides reference by described 2-D data to described seismic physical model actual effect;
Step 4, gathers the three-dimensional data of described seismic physical model, provides reference by described three-dimensional data to described seismic physical model actual effect.
2. method for making according to claim 1, is characterized in that, described step 1 specifically comprises:
Step 11, draws the design structure figure of described seismic physical model layer position, fault block and section;
Step 12, takes out ray examination to described design structure figure;
According to check result, step 13, judges whether described design structure figure meets demand, if so, perform step 2, if not, adjust described design structure figure.
3. method for making according to claim 2, it is characterized in that, the line of taking out described design structure figure being taken out to ray examination is spaced apart: the line of taking out at described seismic physical model two ends is spaced apart 15 centimetres, and the line of taking out in the middle of described seismic physical model is spaced apart 5 centimetres.
4. method for making according to claim 3, is characterized in that, described step 12 specifically comprises:
Along outstanding tectonic direction, in described design structure figure, the coordinate of correspondence proving survey line reads corresponding depth value;
According to described depth value, draw the design profile figure of described inspection survey line;
Judge whether described design structure figure meets demand by design profile figure.
5. method for making according to claim 1, is characterized in that, described step 2 specifically comprises:
Seismic physical model described in layer-by-layer preparation, and morphometry is carried out to seismic physical model every layer described;
Contrast the gap of the data of described morphometry and the data of described design structure figure, if described gap is positioned at specification error scope, then performs step 3, if not, then described seismic physical model is modified.
6. method for making according to claim 5, is characterized in that, described step 3 specifically comprises:
Step 33, gathers the 2-D data of described seismic physical model;
Step 34, carries out depth shift process to described 2-D data;
Step 35, contrasts the depth shift result of described 2-D data and the data of described morphometry, determines whether the making precision of described seismic physical model and the quality of described two dimensional data acquisition meet demand according to comparing result.
7. method for making according to claim 6, it is characterized in that, described step 3 also comprises the step 32 be positioned at before described step 33, described step 32 is specially: carry out 2-D data pilot production to described seismic physical model, determined that by pilot production result whether the optimum configurations of the collecting device of described 2-D data is accurate, if so, perform step 33, if not, described collecting device is debugged.
8. method for making according to claim 7, is characterized in that, described step 3 also comprises the step 31 be positioned at before described step 32, and described step 31 is specially: described seismic physical model is placed in tank and soaks.
9. method for making according to claim 8, is characterized in that, the soak time of described seismic physical model is for being more than or equal to 15 days.
10. method for making according to claim 9, is characterized in that, described step 4 specifically comprises:
Gather the three-dimensional data of described seismic physical model;
Depth shift process is carried out to described three-dimensional data;
The depth shift result of described three-dimensional data and the data of described morphometry are contrasted, determines whether the quality of described seismic physical model meets demand according to comparing result.
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| CN109283201A (en) * | 2017-07-21 | 2019-01-29 | 中国石油化工股份有限公司 | A kind of method and system for examining seismic physical model modeling accuracy |
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