CN105089650B - The method and Reservoir Productivity Prediction Method of evaluation storage lid combination - Google Patents
The method and Reservoir Productivity Prediction Method of evaluation storage lid combination Download PDFInfo
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- CN105089650B CN105089650B CN201410162862.4A CN201410162862A CN105089650B CN 105089650 B CN105089650 B CN 105089650B CN 201410162862 A CN201410162862 A CN 201410162862A CN 105089650 B CN105089650 B CN 105089650B
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Abstract
The present invention, which proposes a kind of method for evaluating storage lid combination and Reservoir Productivity Prediction Method, the evaluation method, to be included：Obtain imaging data image；Using log, the depth profile scope of reservoir and cap rock is determined, and by the depth profile scope scale of reservoir and cap rock to imaging data image, determines the distribution of reservoir and cap rock on imaging data image；It is adjusted to, as the chromatogram value of reservoir on data image, to record the chromatogram value of reservoir when the border of reservoir shows clear, and reservoir threshold value is used as using the chromatogram value；It is adjusted to, as the chromatogram value of cap rock on data image, to record the chromatogram value of cap rock when the border of cap rock shows clear, and cap rock threshold value is used as using the chromatogram value；The cap rock threshold value of the reservoir threshold value of reservoir, and cap rock corresponding with reservoir is combined, forms threshold value combination, is combined with threshold value combination to evaluate storage lid.The evaluation degree of accuracy that the present invention covers storage combination is higher, and method is simpler.
Description
Technical field
The present invention relates to reservoir exploration and development field, in particular it relates to a kind of method and reservoir for evaluating storage lid combination
PRODUCTION FORECASTING METHODS.
Background technology
It is usually the research either only evaluation to cap rock only to reservoir in the prior art, it is combined integrated for storage lid
The research of change is relatively fewer.Find that the method for a small amount of logging evaluation storage lid combination mainly applies reservoir and cap rock physical property by investigating
Parameter and parameters and earth stress carry out the evaluation of reservoir and cap rock quality, wherein physical parameter be mainly porosity, it is permeability, hydrocarbonaceous
Saturation degree；Parameters and earth stress mainly considers cap rock breakthrough pressure.Certain methods also contemplate the thickness and its lid of reservoir and cap rock
The rock character of layer.
With going deep into for exploration and development, the geologic objective of research is increasingly complicated, just for reservoir or cap rock one side
Research often leads to the one-sidedness and uncertainty of understanding.Especially in complicated compact reservoir, the electrical curve of conventional logging
Fewer and fewer to the difference in response opposite sex of reservoir different lithology, physical property, fluid, reflection reservoir pore space, the information of fluid die down；Reservoir
Complexity also necessarily cause anisotropy to be remarkably reinforced, complex pore structure, reservoir parameter computation model establish it is very difficult；
And the physical property model of cap rock at present also necessarily have a greatly reduced quality by Primary Reference reservoir model, the reliability that cap rock parameter calculates, the above
It is difficult that a variety of problems cause to go to accurately identify currently with Logging Curves and evaluate reservoir, cap rock, storage lid combination.
And the imaging logging in new Logging Technology has high resolution, visual and continuity directly perceived, it can directly reflect well
The distribution of strata situation and geologic feature in week, these make it to analyze macrostructure on vertical, and and can is analyzed on microcosmic
Internal finer structures feature, have and carry out stratum characteristic than Conventional Logs and describe more structurally sound feature, can it is more accurate,
Change that is more directly perceived, more easily reflecting formation parameter, preferably reflects the complexity and anisotropism of formation parameter, is studying
It is with a wide range of applications in complicated geological target and space.Therefore the geophysics of imaging logging research storage lid combination is utilized
Characterization method has validity and feasibility.
The content of the invention
It is contemplated that at least solving technical problem present in prior art, a kind of evaluation storage is especially innovatively proposed
The method for covering combination, to solve the problems, such as to store up at present, lid combination evaluation method is complicated and the degree of accuracy is not high.
The present invention also provides a kind of Reservoir Productivity Prediction Method, complicated and accurate to solve current Reservoir Productivity Prediction Method
The problem of degree is not high.
In order to realize the above-mentioned purpose of the present invention, according to the aspect of the present invention, the invention provides one kind evaluation storage
The method for covering combination, including：
Imaging data image obtaining step, obtain imaging data image；
Reservoir and cap rock are distributed on imaging data image determines step, determines reservoir and cap rock in the imaging data images
As upper distribution；
Reservoir threshold value determines step, the chromatogram value of reservoir on the imaging data image is adjusted, with the border of the reservoir
Display clear be criterion, records the chromatogram value of the reservoir when border of the reservoir shows clear, and with chromatogram value work
For reservoir threshold value；
Cap rock threshold value determines step, the chromatogram value of cap rock on the imaging data image is adjusted, with the border of the cap rock
Display clear be criterion, records the chromatogram value of the cap rock when border of the cap rock shows clear, and with chromatogram value work
For cap rock threshold value；
Lid combination evaluation step is stored up, by the reservoir threshold value of the reservoir, and the cap rock of cap rock corresponding with the reservoir
Threshold value is combined, and forms threshold value combination, is combined with the threshold value to evaluate storage lid combination.
In one embodiment of the invention, the method for evaluation storage lid combination also includes：
Chromatogram display pattern simplifies step, the Chromatogram display pattern of the imaging data image is simplified to black and white
Chromatogram display pattern, wherein representing reservoir by white, cap rock is represented by black.
In one embodiment of the invention, the reservoir and cap rock are distributed on imaging data image determines step, bag
Include：
Using log, the depth profile scope of reservoir and cap rock is determined；
By on the depth profile scope scale of the reservoir and cap rock to the imaging data image, so that it is determined that the storage
Layer and distribution of the cap rock on the imaging data image.
According to another aspect of the present invention, the present invention also provides a kind of Reservoir Productivity Prediction Method, including：
Test the combination of reservoir threshold value and determine step, the method that lid combination is stored up using above-mentioned evaluation, it is determined that having tested reservoir
Reservoir threshold value and with the cap rock threshold value for having tested the corresponding cap rock of reservoir, so that it is determined that having tested reservoir pair with described
The threshold value combination for the storage lid combination answered, the threshold value combination include the reservoir threshold value and the cap rock threshold value；
Reservoir threshold value combination classifying step has been tested, it is big according to the production capacity size and the production capacity of production capacity classification of having tested reservoir
Small range, pair with it is described tested the threshold value that storage lid corresponding to reservoir combine and combined classify so that each sets of threshold values
Conjunction both corresponds to a production capacity classification；
Production capacity class threshold standard determines step, the threshold value combination according to corresponding to each production capacity classification, it is determined that respectively
The threshold value standard of the individual production capacity classification, the threshold value standard of each production capacity classification include a reservoir threshold range and one
Individual cap rock threshold range；
The combination of reservoir threshold value is not tested determines step, the method that lid combination is stored up using above-mentioned evaluation, it is determined that not testing reservoir
Reservoir threshold value and with the cap rock threshold value for not testing the corresponding cap rock of reservoir, so that it is determined that not testing reservoir pair with described
The threshold value combination for the storage lid combination answered, the threshold value combination include the reservoir threshold value and the cap rock threshold value；
Do not test reservoir productivity prediction steps, according to it is described do not test reservoir corresponding to storage lid combine threshold value combination,
And the threshold value standard of each production capacity classification, predict the production capacity classification for not testing reservoir.
In one embodiment of the invention, the production capacity classification is for high yield, low yield and without production.
In one embodiment of the invention, tested described in reservoir threshold value combination classifying step, set a certain production
The production capacity magnitude range of energy classification is N1 to N2, if a certain production capacity size for having tested reservoir is in the production capacity magnitude range N1
To N2, it is determined that with it is described tested corresponding to reservoir the threshold value that storage lid combine and combined correspond to the production capacity classification, wherein
N1 and N2 is any real number.
In one embodiment of the invention, the production capacity class threshold standard determines step, including：Ask for respectively each
The maximum and minimum value of reservoir threshold value and cap rock threshold value in threshold value combination corresponding to the production capacity classification；
The reservoir threshold range and cap rock threshold range of each production capacity classification are determined respectively, it is each described so as to obtain
The threshold value standard of production capacity classification.
In one embodiment of the invention, the production capacity class threshold standard determines step, including：
With the reservoir threshold value for having tested reservoir, and make with the cap rock threshold value for having tested the corresponding cap rock of reservoir
For coordinate parameters, coordinate system is established；
According to the difference of production capacity classification, according to different labels, the corresponding storage lid group of reservoir has been tested with described by each
The threshold value combination of conjunction is plotted on the coordinate system；
According to the regularity of distribution of each label on the coordinate system, the threshold value standard of each production capacity classification is determined.
In one embodiment of the invention, it is described not test in reservoir productivity prediction steps, set a certain production capacity classification
Threshold value standard in reservoir threshold range and cap rock threshold range be respectively [R1, R2] and [R3, R4], if described do not test storage
The reservoir threshold value of layer in the reservoir threshold range [R1, R2], and with the cap rock threshold for not testing the corresponding cap rock of reservoir
Value is in the cap rock threshold range [R3, R4], it is determined that the reservoir of not testing is the production capacity classification, wherein R1, R2, R3
It is any real number with R4.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1st, the present invention stores up the basis of lid combination using imaging data image as evaluation, and the evaluation degree of accuracy of storage lid combination is more
It is high；The present invention only needs to gather imaging data image, and gathered data is less；Only imaging data image is analyzed, analyzed
Journey is simple；The geological characteristics of storage cap rock combination are evaluated by threshold value combination, evaluating is less, it can be seen that, compared to current
Evaluation method, evaluation method of the invention is simpler；
2nd, the Chromatogram display pattern of imaging data image is simplified to black and white Chromatogram display pattern by the present invention, can
Guarantee more clearly from shows the border of reservoir and cap rock；
3rd, the present invention is by above-mentioned storage lid combination evaluation method, in being predicted applied to reservoir productivity so that reservoir productivity is predicted
Method is simpler and the degree of accuracy is higher；
4th, the present invention determines each production capacity class in production capacity class threshold standard determination process by the way of coordinate system
Other threshold value standard, it is more visual and clear.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the flow chart of the method for the evaluation storage lid combination that embodiments of the invention 1 provide；
Fig. 2 is the flow chart for the Reservoir Productivity Prediction Method that embodiments of the invention 2 provide；
Fig. 3 is the schematic diagram for being used to determine the coordinate system of the threshold value standard of each production capacity classification in embodiments of the invention 2.
Embodiment
Embodiments of the present invention are described in detail below with reference to drawings and Examples, and how the present invention is applied whereby
Technological means solves technical problem, and the implementation process for reaching technique effect can fully understand and implement according to this.Need to illustrate
As long as not forming conflict, each embodiment in the present invention and each feature in each embodiment can be combined with each other,
The technical scheme formed is within protection scope of the present invention.
In the description of the invention, it can perform and refer in such as one group of computer the step of the flow of accompanying drawing illustrates
Performed in the computer system of order, although also, show logical order in flow charts, in some cases, can be with
To perform shown or described step different from order herein.
Fig. 1 show embodiments of the invention 1 provide evaluation storage lid combination method flow chart, this method include with
Lower step S100 to S500.
S100, imaging data image obtaining step, obtain imaging data image.
Those skilled in the art can easily obtain imaging data image using current logging theory.In imaging number
According to generally carrying out imaging logging to formation at target locations first in image acquisition procedures, then by imaging logging data input to professional software
In, imaging logging data pass through the processing of professional software, export imaging data image.
S200, reservoir and cap rock are distributed on imaging data image determines step, determines reservoir and cap rock in imaging data
Distribution on image.
Due to can not directly determine the depth profile scope of reservoir and cap rock on imaging data image, according to log
It can directly determine the depth profile scope of reservoir and cap rock, and log and imaging data image using identical layer depth
Scale is spent, therefore, present invention utilizes log to determine the distribution of reservoir and cap rock on imaging data image.
In one embodiment of the invention, above-mentioned steps S200 includes：
Using log, the depth profile scope of reservoir and cap rock is determined；
By on the depth profile scope scale of reservoir and cap rock to imaging data image, so that it is determined that reservoir and cap rock into
As the distribution on data image.
S300, reservoir threshold value determine step, are adjusted to, as the chromatogram value of reservoir on data image, show with the border of reservoir
Clear is criterion, records the chromatogram value of reservoir when the border of reservoir shows clear, and is used as reservoir threshold value using the chromatogram value.
S400, cap rock threshold value determine step, are adjusted to, as the chromatogram value of cap rock on data image, show with the border of cap rock
Clear is criterion, records the chromatogram value of cap rock when the border of cap rock shows clear, and is used as cap rock threshold value using the chromatogram value.
S500, storage lid combination evaluation step, by the reservoir threshold value of reservoir, and the cap rock threshold of cap rock corresponding with the reservoir
Value is combined, and forms threshold value combination, is combined with the threshold value to evaluate storage lid combination.
Because imaging logging has the advantages of high resolution, and it intuitively can comprehensively reflect the geologic feature on stratum, because
This present invention stores up the basis of lid combination using imaging data image as evaluation, and the evaluation degree of accuracy of storage lid combination is higher.In addition, this
Invention only needs to gather imaging data image, and gathered data is less；Only imaging data image is analyzed, analysis process letter
It is single；The geological characteristics of storage lid combination are evaluated by threshold value combination, evaluating is less, it can be seen that, compared to current evaluation
Method, evaluation method of the invention are simpler.
The imaging data image obtained in the step s 100, generally by multiple different colourities, to characterize different geology electricity
Conductance, high resistivity is generally represented with white, low-resistivity is represented with black.In fact, the purpose of the present invention does not really want area
Divide conductivity value, and only discriminate between reservoir and cap rock.
For the more clear border for intuitively reflecting reservoir and cap rock, in one embodiment of the invention, this is commented
Valency method also includes：Chromatogram display pattern simplifies step, and the Chromatogram display pattern of imaging data image is simplified into black-and-white two color
Chromatogram display pattern, reservoir is represented by white, cap rock is represented by black.
It should be noted that：In step S300 and S400, although by the way of manually adjusting, to be adjusted to
As the chromatogram value of reservoir on data image and cap rock, and/or by the way of range estimation, whether to judge the border of reservoir and cap rock
When showing clear, the reservoir threshold value and cap rock threshold value of acquisition there may be certain error, but this error is commented storage lid combination
The influence of valency is simultaneously little.Certainly, adjusting chromatogram threshold value and when judging whether border clear, can also use except manual adjustment with
Other modes outside range estimation.
Due in test phase and production phase, having tested out the production capacity size compared with multi-reservoir at present.Therefore, it is of the invention
The method that lid combination is also stored up based on above-mentioned evaluation, to predict the production capacity for not testing reservoir, it is not necessary to be acquired, comment to multiple parameters
Valency is analyzed, and PRODUCTION FORECASTING METHODS is simple and accurate.
Fig. 2 shows the flow chart for the Reservoir Productivity Prediction Method that embodiments of the invention 2 provide, reservoir productivity prediction
Method comprises the following steps S600 to S1000.
S600, reservoir threshold value combination determination step is tested, using above-mentioned steps S100 to the evaluation described in S500
The method of storage lid combination, it is determined that having tested the reservoir threshold value of reservoir and the cap rock threshold of the corresponding cap rock of reservoir having been tested with this
Value, so that it is determined that being combined with the threshold value that storage lid corresponding to this has tested reservoir combine, the threshold value, which combines, includes reservoir threshold value and lid
Layer threshold value.
S700, reservoir threshold value combination classifying step is tested, according to the production capacity size and production capacity classification for having tested reservoir
Production capacity magnitude range, pair the threshold value that storage lid corresponding to reservoir combine is tested with this and has combined and classified, so that each sets of threshold values
Conjunction both corresponds to a production capacity classification.
In above-mentioned steps S800, the production capacity magnitude range of a certain production capacity classification is set as N1 to N2, if a certain surveyed
Try reservoir production capacity size in the production capacity magnitude range N1 to N2, it is determined that with it is described tested reservoir it is corresponding storage lid group
The threshold value combination of conjunction corresponds to the production capacity classification, and wherein N1 and N2 are any real number.
In one embodiment of the invention, production capacity classification includes high yield, low yield and without production.The production capacity classification can be taking human as
Setting division, can also be divided according to the regulation about production capacity height in current professional standard.
S800, production capacity class threshold standard determine step, the threshold value combination according to corresponding to each production capacity classification, it is determined that respectively
The threshold value standard of individual production capacity classification, the threshold value standard of each production capacity classification include a reservoir threshold range and a cap rock threshold
It is worth scope.
In one embodiment of the invention, above-mentioned steps S800, including：
The maximum of reservoir threshold value and cap rock threshold value and most is asked in the threshold value combination corresponding to each production capacity classification respectively
Small value；And
The reservoir threshold range and cap rock threshold range of each production capacity classification are determined respectively, so as to obtain each production capacity
The threshold value standard of classification.
In another embodiment of the invention, above-mentioned steps S800, including：
To have tested the reservoir threshold value of reservoir, and with this cap rock threshold value of the corresponding cap rock of reservoir has been tested as coordinate
Parameter, establish coordinate system；
According to the difference of production capacity classification, according to different labels, cover what is combined with having tested storage corresponding to reservoir by each
Threshold value combination is plotted on coordinate system；And
According to the regularity of distribution of each label on coordinate system, the threshold value standard of each production capacity classification is determined.
For example, as shown in figure 3, using reservoir threshold value as abscissa, cap rock threshold value is ordinate, establishes coordinate system, using filling out
Square is filled to represent high productivity layer, low-productivity layer is represented using rhombus, dried layer (i.e. without payzone) is represented using circle, using not
Square is filled to represent compacted zone.Each threshold value combination combined with having tested storage lid corresponding to reservoir is being plotted in coordinate
After fastening, it can be seen that compacted zone is located at the most left part of coordinate system, and high productivity layer is located at the middle and upper part of coordinate system, and dried layer is located at
The middle and lower part of coordinate system and right lower quadrant, low-productivity layer are located at the right lower quadrant of coordinate system, therefore deduced that, the threshold of each production capacity classification
Value standard.
As can be seen here, the threshold value standard of the invention by determining each production capacity classification in the form of coordinate system, more directly
See clear.
S900, reservoir threshold value combination determination step is not tested, using above-mentioned steps S100 to the evaluation described in S500
The method of storage lid combination, it is determined that not testing the reservoir threshold value of reservoir and not testing the cap rock threshold of the corresponding cap rock of reservoir with this
Value, so that it is determined that not testing the threshold value combination that storage lid corresponding to reservoir combines with this, threshold value combination includes reservoir threshold value and lid
Layer threshold value.
S1000, reservoir productivity prediction steps are not tested, the sets of threshold values that storage lid according to corresponding to not testing reservoir with this combines
Close, and the threshold value standard of each production capacity classification, predict the production capacity classification for not testing reservoir.
(it is expressed as [R1, R2]) as R1 to R2 for example, setting reservoir threshold range in the threshold value standard of a certain production capacity classification,
Cap rock threshold range is R3 to R4 (being expressed as [R3, R4]), if not testing the reservoir threshold value of reservoir in reservoir threshold range
In [R1, R2], and cap rock threshold value of corresponding cap rock of reservoir is not tested with this in cap rock threshold range [R3, R4], it is determined that
It is the production capacity classification that this, which does not test reservoir, and wherein R1, R2, R3 and R4 is any real number.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (9)
- A kind of 1. method for evaluating storage lid combination, it is characterised in that including：Imaging data image obtaining step, obtain imaging data image；Reservoir and cap rock are distributed on imaging data image determines step, determines reservoir and cap rock on the imaging data image Distribution；Reservoir threshold value determines step, adjusts the chromatogram value of reservoir on the imaging data image, is shown with the border of the reservoir Clear be criterion, records the chromatogram value of the reservoir when border of the reservoir shows clear, and is used as and stored up using the chromatogram value Layer threshold value；Cap rock threshold value determines step, adjusts the chromatogram value of cap rock on the imaging data image, is shown with the border of the cap rock Clear be criterion, records the chromatogram value of the cap rock when border of the cap rock shows clear, and is used as and covered using the chromatogram value Layer threshold value；Lid combination evaluation step is stored up, by the reservoir threshold value of the reservoir, and the cap rock threshold value of cap rock corresponding with the reservoir It is combined, forms threshold value combination, is combined with the threshold value to evaluate storage lid combination.
- 2. according to the method for claim 1, it is characterised in that also include：Chromatogram display pattern simplifies step, and the Chromatogram display pattern of the imaging data image is simplified into black and white chromatogram Display pattern, wherein representing reservoir by white, cap rock is represented by black.
- 3. according to the method for claim 1, it is characterised in that the reservoir and cap rock are distributed really on imaging data image Determine step, including：Using log, the depth profile scope of reservoir and cap rock is determined；By on the depth profile scope scale of the reservoir and cap rock to the imaging data image, so that it is determined that the reservoir and Distribution of the cap rock on the imaging data image.
- A kind of 4. Reservoir Productivity Prediction Method, it is characterised in that including：The combination of reservoir threshold value is tested and has determined step, using the side of the evaluation storage lid combination any one of claims 1 to 3 Method, it is determined that tested reservoir the first reservoir threshold value and with the first cover threshold value for having tested the corresponding cap rock of reservoir, So that it is determined that with the first threshold combination tested storage lid corresponding to reservoir and combined, the first threshold combination includes described First reservoir threshold value and the first cover threshold value；Reservoir threshold value combination classifying step is tested, the production capacity according to the production capacity size for having tested reservoir and the first production capacity classification is big Small range, pair with it is described tested the first threshold that storage lid corresponding to reservoir combine and combined classify so that each described the The combination of one threshold value both corresponds to the first production capacity classification；Production capacity class threshold standard determines step, the first threshold combination according to corresponding to each first production capacity classification, really The threshold value standard of fixed each first production capacity classification, the threshold value standard of each first production capacity classification include one first Reservoir threshold range and a first cover threshold range；The combination of reservoir threshold value is not tested and determines step, using the side of the evaluation storage lid combination any one of claims 1 to 3 Method, it is determined that do not test reservoir the second reservoir threshold value and with the second cap rock threshold value for not testing the corresponding cap rock of reservoir, So that it is determined that with the Second Threshold combination do not tested storage lid corresponding to reservoir and combined, the Second Threshold combination includes described Second reservoir threshold value and the second cap rock threshold value；Do not test reservoir productivity prediction steps, according to it is described do not test reservoir corresponding to storage lid combine Second Threshold combination, And the threshold value standard of each first production capacity classification, predict the second production capacity classification for not testing reservoir.
- 5. according to the method for claim 4, it is characterised in that the first production capacity classification and the second production capacity classification are height Production, low yield and without production.
- 6. according to the method for claim 4, it is characterised in that tested described in reservoir threshold value combination classifying step, The production capacity magnitude range of a certain first production capacity classification is set as N1 to N2, if a certain production capacity size for having tested reservoir is described In production capacity magnitude range N1 to N2, it is determined that with it is described tested corresponding to reservoir the first threshold that storage lid combine and combined correspond to The first production capacity classification, wherein N1 and N2 are any real number.
- 7. according to the method for claim 4, it is characterised in that the production capacity class threshold standard determines step, including：Point The first reservoir threshold value and first cover threshold value in the first threshold combination corresponding to each first production capacity classification are not asked for Maximum and minimum value；The the first reservoir threshold range and first cover threshold range of each first production capacity classification are determined respectively, so as to obtain The threshold value standard of each first production capacity classification.
- 8. according to the method for claim 4, it is characterised in that the production capacity class threshold standard determines step, including：With the first reservoir threshold value for having tested reservoir, and with the first cover threshold for having tested the corresponding cap rock of reservoir Value is used as coordinate parameters, establishes coordinate system；According to the difference of the first production capacity classification, according to different labels, the corresponding storage lid group of reservoir has been tested with described by each The first threshold combination of conjunction is plotted on the coordinate system；According to the regularity of distribution of each label on the coordinate system, the threshold value standard of each first production capacity classification is determined.
- 9. according to the method for claim 4, it is characterised in that it is described not test in reservoir productivity prediction steps, set certain In the threshold value standard of one second production capacity classification the second reservoir threshold range and the second cap rock threshold range be respectively [R1, R2] and [R3, R4], if the second reservoir threshold value for not testing reservoir is interior in the second reservoir threshold range [R1, R2], and with The second cap rock threshold value for not testing cap rock corresponding to reservoir is in the second cap rock threshold range [R3, R4], it is determined that The reservoir of not testing is the second production capacity classification, and wherein R1, R2, R3 and R4 is any real number.
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