CN109255834A - Deposit three-dimensional oil in place evaluation method - Google Patents
Deposit three-dimensional oil in place evaluation method Download PDFInfo
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- CN109255834A CN109255834A CN201811065804.4A CN201811065804A CN109255834A CN 109255834 A CN109255834 A CN 109255834A CN 201811065804 A CN201811065804 A CN 201811065804A CN 109255834 A CN109255834 A CN 109255834A
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- 238000011156 evaluation Methods 0.000 title claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000008859 change Effects 0.000 claims description 4
- 239000003086 colorant Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 10
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 10
- 239000011707 mineral Substances 0.000 abstract description 10
- 238000004458 analytical method Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000011160 research Methods 0.000 abstract description 2
- 241001269238 Data Species 0.000 abstract 1
- 238000004393 prognosis Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000012800 visualization Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 2
- 229910052745 lead Inorganic materials 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 230000037396 body weight Effects 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007794 visualization technique Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/05—Geographic models
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Abstract
The invention discloses a kind of deposit three-dimensional oil in place evaluation methods, the present invention is on the basis of modern metallogenic prognosis theoretical research, in conjunction with data such as existing terrain and geologic map, exploratory grid cross section, borehole datas, the terrain model, fracture model, stratum physical model, ore body model of diameter mouth mine section are established with three-dimensional geological modeling technology.Applied geology block method and Block Model statistic law have carried out the Resource management estimation of ore body respectively on this basis, and two kinds of reserve estimate results are analyzed.Analysis the result shows that, Block Model statistic law is wider than geological blocking application range, and effect is more accurate, can clearly express Orebody Grade value variation characteristic, and then deepen the understanding to the space distribution rule of ore body, mineral deposit.
Description
Technical field
Present invention relates particularly to a kind of methods of the high precision computation of ore body reserves under three-dimensional visualization environment.
Background technique
With earth's surface mineral products, the increasingly reduction of superficial part mineral resources, deep mine and buried ore be increasingly becoming every country and
Mainly reconnoitre object in area.It is existing that multiple Metals Deposit Ore areas progress resource is surveyed using multi-fractal mineral resource prediction theory
It looks into and evaluates, however as the continuous development of electronic computer and three-dimensional visualization technique, traditional analysis method has met
The not analysis demand of existing earth's surface mineral products.
Summary of the invention
For existing issue, the present invention is intended to provide a kind of deposit three-dimensional oil in place evaluation method.
For this purpose, the invention adopts the following technical scheme: deposit three-dimensional oil in place evaluation method, it is characterized in that including following
Step: establishing a blank nugget model on the basis of three-dimensional geological modeling, and nugget model is identical small by a series of sizes
Cuboid cell block composition, approximatively expresses ore body using cell block, there is each cell block corresponding attribute to indicate
The grade value of a certain position inside ore body, the difference of attribute represents Grade change inside ore body between these cell blocks
Rule carries out block interpolation using apart from inverse ratio weighting method, and the distance of interpolation is determined according to the radius of search ellipsoid, is passed through
The radius of search ellipsoid determines the number for participating in the Rigid Body Element of interpolation arithmetic, real according to area's internal drilling and exploration line spacing etc.
Border situation after interpolation is primary, checks interpolation situation in Block Model, then successively carries out the 2nd, 3,4 search value interposition, interpolation radius
Successively, the different range of the grade of ore is represented by the way that different colors is arranged, finally obtains ore body Block Model in mine section.
The present invention can achieve following the utility model has the advantages that Block Model statistic law of the invention is wanted when calculating ore body reserves
It is more accurate more reasonable than traditional geological blocking, it is to utilize nugget model knot using modern Block Model statistic law advantage
The visualization function for closing three-dimensional geological model can express the grade value changing rule of ore body part, and then deepen to ore body, mine
The understanding of the space distribution rule of bed.Three-dimensional geological modeling technology is used simultaneously, and high reliablity, effect of visualization is good, will be traditional
Two-dimentional geology be extended to three-dimensional space and carry out positioning and quantification, help to analyze Mine area geologic structure feature and mineral deposit at
Cause, is a kind of modern effective means for finding mineral deposit, this research can extend to other mines.
Specific embodiment
The present invention the following steps are included:
Block Model statistic law reserve estimate: a blank nugget model, mine are established on the basis of three-dimensional geological modeling
Block models are made of a series of identical small cuboid cell block of sizes, approximatively express ore body using cell block, each list
First block has corresponding attribute all to indicate the grade value of a certain position inside ore body, and the difference of attribute is between cell block
Grade change rule inside ore body is represented, carries out block interpolation using apart from inverse ratio weighting method, the distance of interpolation is according to search
The radius of spheroid determines, the number for participating in the Rigid Body Element of interpolation arithmetic is determined by the radius of search ellipsoid, according to
The actual conditions such as area's internal drilling and exploration line spacing after interpolation is primary, check interpolation situation in Block Model, then successively carry out
2,3,4 search value interpositions, interpolation radius successively, by the way that different colors is arranged represent the different range of the grade of ore, finally
Obtain ore body Block Model in mine section.
Traditional geological blocking is that common method, strong applicability have wide range of applications in mineral metal products reserve estimate.
The Computing Principle of this method is to project to ore body in one plane according to horizontal or vertical direction, when the slanting angle of ore body is larger
It is suitble to use upright projection, is suitble to when the slanting angle of ore body is more gentle using floor projection.On the projection surface according to the difference of ore
One ore body is divided into several blocks of varying thickness by the geologic features such as category of reserves, different industrial types, successively flat with counting
Equal method calculates the reserves of each block.It has the advantages that arithmetic mean method, simultaneously effective overcomes arithmetic mean method not
The shortcomings that geological block can be divided.
It is in like stratiform output to certain mine section ore body, inclination angle is 65 °~70 °, reconnoitres engineering near vertical orebody trend cloth
It sets.According to the form (stratiform) of ore body, occurrence (inclination angle), scale and to the controlling extent of ore body, this is using vertical vertical projection
Stock number estimation is carried out using geological blocking on figure.According to statistics, diameter mouth mine section Pb- Zn orebody, across pitch extend about 300 meters, edge
Inclination extends to 30~250 meters, and 125 meters of average out to, orebody thickness variation coefficient is that the coefficient of variation of grade of 42%, Pb is
174%, Zn coefficient of variation of grade are 166%, are divided into 333 stock numbers.
Mineral Resource main formulas for calculating:
Ore amount: Q=V × d；Amount of metal: P=Q × C；V=M × S
Wherein: Q- ore amount (t), P- amount of metal (t), V- block volume (m3), d- ore body weight (t/m3), C- ore body is flat
It samples, average level thickness in M- block, area of the S- block on vertical vertical perspective plane.
The stock number of the mine section 1. number mother-lode is calculated herein, is divided geological block totally 8, is estimated that total ore amount is
979932t, total metal resource amount are 50956t, and Pb, Zn average grade are respectively 2.4 and 2.8.
Reserve estimate method comparative analysis
On the basis of certain ore body three-dimensional geological model, estimated respectively using traditional geological blocking and Block Model statistic law
Ore body resource reserve is calculated.Analysis result table 1 shows result ore amount that Block Model statistic law obtains than geological blocking
High, average grade is lower than geological blocking, and amount of metal is higher than geological blocking.
1 reserve estimate interpretation of result of table
For comparing, Block Model statistic law is more more accurate than geological blocking reasonable when calculating ore body reserves
It is some.It is the ore amount for calculating separately each geological block using arithmetic mean method using traditional geological blocking, is visited when encountering
Ore control engineering distribution is uneven or geometric configuration of orebody it is very irregular when, easily cause and compare in calculated reserves
Big error.Visualization using nugget models coupling three-dimensional geological model is using modern Block Model statistic law advantage
Function, can understand the grade value variation at expression ore body each position, and can deepen to ore body, mineral deposit space distribution rule
Understanding, calculated result are true and reliable.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (1)
1. deposit three-dimensional oil in place evaluation method, it is characterized in that the following steps are included: being built on the basis of three-dimensional geological modeling
A blank nugget model is found, nugget model is made of a series of identical small cuboid cell block of sizes, close using cell block
As express ore body, each cell block has corresponding attribute to indicate the grade value of a certain position inside ore body, unit
The difference of attribute represents Grade change rule inside ore body between block, is inserted using block is carried out apart from inverse ratio weighting method
Value, the distance of interpolation are determined according to the radius of search ellipsoid, are determined by the radius of search ellipsoid and are participated in interpolation arithmetic
The number of Rigid Body Element after interpolation is primary, checked in Block Model according to the actual conditions such as area's internal drilling and exploration line spacing
Interpolation situation, then the 2nd, 3,4 search value interposition is successively carried out, interpolation radius successively, by the way that different colors is arranged represents mine
The different range of stone grade finally obtains ore body Block Model in mine section.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110378600A (en) * | 2019-07-23 | 2019-10-25 | 湖南省有色地质勘查局二一七队 | A kind of ore body is drawn a circle to approve automatically and reserves intelligent estimation system |
| CN111768503A (en) * | 2020-07-08 | 2020-10-13 | 广州海洋地质调查局 | Sea sand resource amount estimation method based on three-dimensional geological model |
| CN111784761A (en) * | 2020-07-06 | 2020-10-16 | 中广核铀业发展有限公司 | Mineral resource set volume estimation method |
| CN113077546A (en) * | 2021-04-14 | 2021-07-06 | 中国地质大学（武汉） | Automatic search ellipsoid setting method for mineral resource reserve estimation |
| CN114186762A (en) * | 2020-09-14 | 2022-03-15 | 核工业二一六大队 | Uranium ore reserve estimation profile map ore body engineering sample section thickness updating method |
| CN114240081A (en) * | 2021-11-26 | 2022-03-25 | 成都理工大学 | Mineralization characteristic quantification system and method |
| CN114492205A (en) * | 2022-02-16 | 2022-05-13 | 中国地质大学（武汉） | Local anisotropy search ellipsoid model simplification method based on similarity judgment |
| CN117635994A (en) * | 2024-01-17 | 2024-03-01 | 江西省地质局生态地质大队 | MPS mineral resource reserve estimation method capable of automatically generating training images |
| CN117876598A (en) * | 2024-01-15 | 2024-04-12 | 核工业航测遥感中心 | Three-dimensional expression method, system and readable storage medium for attribute volume model |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110378600A (en) * | 2019-07-23 | 2019-10-25 | 湖南省有色地质勘查局二一七队 | A kind of ore body is drawn a circle to approve automatically and reserves intelligent estimation system |
| CN111784761A (en) * | 2020-07-06 | 2020-10-16 | 中广核铀业发展有限公司 | Mineral resource set volume estimation method |
| CN111784761B (en) * | 2020-07-06 | 2024-02-09 | 中广核铀业发展有限公司 | Mineral resource aggregate volume estimation method |
| CN111768503A (en) * | 2020-07-08 | 2020-10-13 | 广州海洋地质调查局 | Sea sand resource amount estimation method based on three-dimensional geological model |
| CN114186762A (en) * | 2020-09-14 | 2022-03-15 | 核工业二一六大队 | Uranium ore reserve estimation profile map ore body engineering sample section thickness updating method |
| CN113077546A (en) * | 2021-04-14 | 2021-07-06 | 中国地质大学（武汉） | Automatic search ellipsoid setting method for mineral resource reserve estimation |
| CN113077546B (en) * | 2021-04-14 | 2022-03-15 | 中国地质大学（武汉） | Automatic search ellipsoid setting method for mineral resource reserve estimation |
| CN114240081A (en) * | 2021-11-26 | 2022-03-25 | 成都理工大学 | Mineralization characteristic quantification system and method |
| CN114240081B (en) * | 2021-11-26 | 2023-04-07 | 成都理工大学 | Mineralization characteristic quantification system and method |
| CN114492205A (en) * | 2022-02-16 | 2022-05-13 | 中国地质大学（武汉） | Local anisotropy search ellipsoid model simplification method based on similarity judgment |
| CN117876598A (en) * | 2024-01-15 | 2024-04-12 | 核工业航测遥感中心 | Three-dimensional expression method, system and readable storage medium for attribute volume model |
| CN117635994A (en) * | 2024-01-17 | 2024-03-01 | 江西省地质局生态地质大队 | MPS mineral resource reserve estimation method capable of automatically generating training images |
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