CN109725347A - A kind of interlayer oxidation zone sandstone-type uranium three-dimensional geologic model building method - Google Patents
A kind of interlayer oxidation zone sandstone-type uranium three-dimensional geologic model building method Download PDFInfo
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Abstract
The invention belongs to uranium geology technical fields, specifically disclose a kind of construction method of interlayer oxidation zone sandstone-type uranium three-dimensional geological body Model.This method comprises the following steps: step S1: whether the geologic elements boundary line elevation of comparative analysis exploratory grid cross section and borehole data divides consistent;Step S2: it is inconsistent to division described in above-mentioned steps S1, the absolute altitude in line of demarcation is measured, is modified after being scaled hole depth data to drilling;Step S3: the modeling factors information of the exploratory grid cross section in extraction step S1;Step S4: three-dimensional conversion is carried out to the exploratory grid cross section extracted in above-mentioned steps S3;Step S5: to modeling factors information in above-mentioned steps S3, ore body and sandbody model are drawn a circle to approve;Step S6: creation bore database and three-dimensional geological body Model.This method can be realized more intuitive interlayer oxidation zone sandstone-type uranium ore factor and ore body, flexible, multi-angle, visual displaying, obtain the information that previous two-dimensional visualization is difficult to obtain.
Description
Technical field
The invention belongs to uranium geology technical fields, and in particular to a kind of interlayer oxidation zone sandstone-type uranium three-dimensional geologic
The construction method of model.
Background technique
Sandstone-type uranium mineralization with respect occupies highly important status in uranium ore family, and with low cost, environmentally protective original place
The continuous development of leaching mining technology, up to now, sandstone-type uranium mineralization with respect have occupied first place in global uranium resource structure, become 21
Century most important uranium resource.And interlayer oxidation zone sandstone-type uranium is most important one genetic type.Therefore, carry out layer
Between oxidized zone sandstone-type uranium mineralization with respect 3 D model construction method study existing theory significance, and have important practical application value.
Summary of the invention
The object of the present invention is to provide a kind of interlayer oxidation zone sandstone-type uranium three-dimensional geologic model building method, the party
Method can be realized more intuitive interlayer oxidation zone sandstone-type uranium ore factor and ore body, flexible, multi-angle, visual exhibition
Show, obtains the information that previous two-dimensional visualization is difficult to obtain.
Technical scheme is as follows: a kind of interlayer oxidation zone sandstone-type uranium three-dimensional geologic model building method,
This method comprises the following steps:
Step S1: whether the geologic elements boundary line elevation of comparative analysis exploratory grid cross section and borehole data divides consistent;
Step S2: it is inconsistent to division described in above-mentioned steps S1, the absolute altitude in line of demarcation is measured, hole depth number is scaled
It modifies according to rear to drilling;
Step S3: the modeling factors information of the exploratory grid cross section in extraction step S1;
Step S4: three-dimensional conversion is carried out to the exploratory grid cross section extracted in above-mentioned steps S3;
Step S5: to modeling factors information in above-mentioned steps S3, ore body and sandbody model are drawn a circle to approve;
Step S6: creation bore database and three-dimensional geological body Model.
In the step S1 in comparative analysis exploratory grid cross section and borehole data about stratum, sand body, coal seam and
Whether the geologic elements boundary line elevation of ore body divides consistent.
Geologic elements boundary line elevation is divided in the step S2 inconsistent, is subject to exploratory grid cross section, measurement
The absolute altitude in line of demarcation takes the average value of measurement result three times as final result, repairs after being scaled hole depth data to drilling
Change.
Modeling factors information includes stratum in exploratory grid cross section, sand body, ore body, coal seam and breaks in the step S3
It splits, to the line of demarcation Uniform Name of same layer position in modeling factors information or same nature, and individually saves.
It uses in the step S4 and exploratory grid cross section is carried out in the method that borehole coordinate is three-dimensional conversion datum mark
Three-dimensional conversion.
When constructing sandbody model in the step S5, advance pushes away contracting from 1/2 processing by exploration line spacing between ore body
Subtract parameter by 1/5 processing of extended mine section line.
The step of bore database is created in the step S6 is as follows: borehole data is saved as into * txt format,
In Gocad under File menu, borehole data is successively sequentially introduced into according to location, path, marker tri-, that is, is produced
Bore database.
The step of three-dimensional geological body Model is created in the step S6 is as follows: stratum, coal seam and fracture line of demarcation are led
Enter in Gocad, that is, completes the creation of three-dimensional geological body Model.
The invention has the benefit that (1) present invention firstly provides interlayer oxidation zone sandstone-type uranium three-dimensional modeling numbers
According to process flow, successfully the control errors between exploratory grid cross section and borehole data are substantially increased within the scope of ± 1m
The precision of model;(2) present invention has attempted to convert datum mark using borehole coordinate as exploratory grid cross section three-dimensional space for the first time,
Achieve good effect;(3) this method is in the comprehensive analysis interlayer oxidation zone sandstone-type uranium regularity of ore formation and related uranium ore
It reconnoitres and summarizes on the basis of standard criterion, cover that wide, validity is high, strong applicability, accuracy are good.The present invention is applicable in
In constructing sedimentary basin interlayer oxidation zone sandstone-type uranium geology ore body model under three-dimensional environment, interlayer oxidized zone sandstone is realized
Type Uranium Deposits element and ore body are more intuitive, flexible, multi-angle, visually show.
Detailed description of the invention
Fig. 1 is a kind of stream of interlayer oxidation zone sandstone-type uranium three-dimensional geologic model building method provided by the present invention
Cheng Tu.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, being a kind of interlayer oxidation zone sandstone-type uranium three-dimensional geologic model construction provided by the present invention
Method, this method comprises the following steps:
Below with regard to embodiment to a kind of interlayer oxidation zone sandstone-type uranium three-dimensional geological body Model structure provided by the present invention
Construction method is described in detail.
Step S1: whether the geologic elements boundary line elevation of comparative analysis exploratory grid cross section and borehole data divides consistent
About modeling factors such as stratum, sand body, coal seam and ore bodies in comparative analysis exploratory grid cross section and borehole data
Geologic elements boundary line elevation divide it is whether consistent.
Step S2: it is inconsistent to division described in above-mentioned steps S1, the absolute altitude in line of demarcation is measured, hole depth number is scaled
It modifies according to rear to drilling, the specific steps are as follows:
Geologic elements boundary line elevation described in above-mentioned steps S1 is divided inconsistent, is subject to exploratory grid cross section,
The absolute altitude for measuring line of demarcation takes the average value of measurement result three times as final result, be scaled after hole depth data to drill into
Row modification.
It is consistent that this step can ensure that both exploratory grid cross section and borehole data in equivalent layer position cut through altitude data a little,
Error range is ± 1m, substantially increases the precision of threedimensional model.
Step S3: the modeling factors information of the exploratory grid cross section in extraction step S1, the specific steps are as follows:
The modeling factors information such as stratum, sand body, ore body, coal seam and fracture in exploratory grid cross section is subjected to taxonomic revision,
To the line of demarcation Uniform Name of same layer position in modeling factors information or same nature, and individually save.Two-dimensional space rule
Model, unified data extraction standard can be integrated for three-dimensional space data, modeling factors divide, model construction and inspection provide just
Benefit.
Step S4: three-dimensional conversion is carried out to the exploratory grid cross section extracted in above-mentioned steps S3
The present invention, which is used, carries out three-dimensional conversion to exploratory grid cross section in the method that borehole coordinate is three-dimensional conversion datum mark.
The basic principle is that two o'clock determines a line.And boring point selection need to satisfy two conditions:: first is that meeting in the exploration line
Drilling is fallen near line as far as possible, second is that new exploration line need to coincide as far as possible with the trend of geologic map Central Plains exploration line.It should
Method has broken traditional Utopian exploration line spread pattern, is more in line with real work situation.
Step S5: to modeling factors information in above-mentioned steps S3, ore body and sandbody model are drawn a circle to approve.
Based on above-mentioned steps S3, to modeling object and its single-row display of up-and-down boundary line, some ground can clearly be presented
The space preservation position and Distribution Pattern of ore body and sand body in layer unit.
Since uranium ore correlation geological exploration norm is not to the ore body of interlayer oxidation zone sandstone-type uranium under the conditions of three-dimensional space
Extrapolation, which extends, to be made clearly stipulate that the present embodiment is when constructing three-dimensional ore body and sandbody model, and advance is from by exploration between ore body
1/2 processing of line spacing pushes away reduction parameter by 1/5 processing of extended mine section line.In view of sand body must cover ore body
Situation does not do reduction processing to the sand body boundary line of extrapolation, and extrapolation distance has to be larger than ore body extrapolation distance.Institute's structure in need
The boundary line for building entity must satisfy the requirement of blockade line.All physical models must not cut through stratum line of demarcation up and down.
Step S6: creation bore database and three-dimensional geological body Model, the specific steps are as follows:
Step S61: the step of creating bore database is as follows: the borehole data finished will be arranged and save as * txt format,
The name of file and content do not contain Chinese character.In Gocad under File menu, by borehole data successively according to
Location, path, marker tri- are sequentially introduced into, and can automatically generate bore database.
Step S62: the step of creating three-dimensional geological body Model is as follows: stratum, coal seam and the fracture that arrangement is finished are demarcated
Line imports in Gocad, then carries out taxonomic revision to data, that is, completes the creation of three-dimensional geological body Model.Wherein, coal seam conduct
Special stratum line of demarcation, is included into horizon option together with stratum.Fault option is then included into F1, F2 fracture.
The application with the inventive method in Meng Qiguer typical ore deposits three-dimensional geological object model is embodiment below, into
One step illustrates technical solution of the present invention:
The present invention is explained in detail above in conjunction with drawings and examples, but the present invention is not limited to above-mentioned implementations
Example, within the knowledge of a person skilled in the art, can also make without departing from the purpose of the present invention
Various change out.The content being not described in detail in the present invention can use the prior art.
Claims (8)
1. a kind of interlayer oxidation zone sandstone-type uranium three-dimensional geologic model building method, it is characterised in that: this method includes such as
Lower step:
Step S1: whether the geologic elements boundary line elevation of comparative analysis exploratory grid cross section and borehole data divides consistent;
Step S2: it is inconsistent to division described in above-mentioned steps S1, the absolute altitude in line of demarcation is measured, after being scaled hole depth data
It modifies to drilling;
Step S3: the modeling factors information of the exploratory grid cross section in extraction step S1;
Step S4: three-dimensional conversion is carried out to the exploratory grid cross section extracted in above-mentioned steps S3;
Step S5: to modeling factors information in above-mentioned steps S3, ore body and sandbody model are drawn a circle to approve;
Step S6: creation bore database and three-dimensional geological body Model.
2. a kind of interlayer oxidation zone sandstone-type uranium three-dimensional geologic model building method according to claim 1, special
Sign is: about stratum, sand body, coal seam and mine in comparative analysis exploratory grid cross section and borehole data in the step S1
Whether the geologic elements boundary line elevation of body divides consistent.
3. a kind of interlayer oxidation zone sandstone-type uranium three-dimensional geologic model building method according to claim 2, special
Sign is: dividing inconsistent to geologic elements boundary line elevation in the step S2, is subject to exploratory grid cross section, measurement point
The absolute altitude in boundary line takes the average value of measurement result three times as final result, modifies after being scaled hole depth data to drilling.
4. a kind of interlayer oxidation zone sandstone-type uranium three-dimensional geologic model building method according to claim 3, special
Sign is: modeling factors information includes stratum in exploratory grid cross section, sand body, ore body, coal seam and fracture in the step S3,
To the line of demarcation Uniform Name of same layer position in modeling factors information or same nature, and individually save.
5. a kind of interlayer oxidation zone sandstone-type uranium three-dimensional geologic model building method according to claim 4, special
Sign is: using in the step S4 and carries out three to exploratory grid cross section in the method that borehole coordinate is three-dimensional conversion datum mark
Dimension conversion.
6. a kind of interlayer oxidation zone sandstone-type uranium three-dimensional geologic model building method according to claim 5, special
Sign is: when constructing sandbody model in the step S5, advance is pushed away from 1/2 processing by exploration line spacing between ore body
Reduce parameter and presses 1/5 processing for being extended mine section line.
7. a kind of interlayer oxidation zone sandstone-type uranium three-dimensional geologic model building method according to claim 6, special
Sign is: the step of bore database is created in the step S6 is as follows: borehole data is saved as into * txt format,
In Gocad under File menu, borehole data is successively sequentially introduced into according to location, path, marker tri-, that is, is produced
Bore database.
8. a kind of interlayer oxidation zone sandstone-type uranium three-dimensional geologic model building method according to claim 7, special
Sign is: the step of three-dimensional geological body Model is created in the step S6 is as follows: stratum, coal seam and fracture line of demarcation are imported
In Gocad, that is, complete the creation of three-dimensional geological body Model.
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CN110648378A (en) * | 2019-09-05 | 2020-01-03 | 核工业二四三大队 | Electronic drawing method for horizontal projection drawing of sandstone-type uranium ore body |
CN111239815A (en) * | 2020-01-20 | 2020-06-05 | 吉林大学 | Sandstone-type uranium reservoir mineralization and deposition element extraction method based on three-dimensional seismic attributes |
CN111859687A (en) * | 2020-07-27 | 2020-10-30 | 核工业北京化工冶金研究院 | Mixed geological modeling method and system for depicting geological structure of uranium-bearing sand layer |
CN112415628A (en) * | 2019-08-20 | 2021-02-26 | 核工业二一六大队 | Sandstone-type uranium ore sampling plane distribution diagram mapping method |
CN112489163A (en) * | 2019-09-11 | 2021-03-12 | 核工业二一六大队 | Sandstone-type uranium ore comprehensive result map mapping method |
CN112820184A (en) * | 2019-11-18 | 2021-05-18 | 核工业二一六大队 | Sandstone-type uranium ore exploration line design profile map forming method |
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CN112415628A (en) * | 2019-08-20 | 2021-02-26 | 核工业二一六大队 | Sandstone-type uranium ore sampling plane distribution diagram mapping method |
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CN111859687A (en) * | 2020-07-27 | 2020-10-30 | 核工业北京化工冶金研究院 | Mixed geological modeling method and system for depicting geological structure of uranium-bearing sand layer |
CN111859687B (en) * | 2020-07-27 | 2024-02-02 | 核工业北京化工冶金研究院 | Mixed geological modeling method and system for depicting geological structure of uranium-bearing sand layer |
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