CN108661630A - One kind being based on the preferred geology dessert quantitative evaluation method of parameter - Google Patents
One kind being based on the preferred geology dessert quantitative evaluation method of parameter Download PDFInfo
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- 235000021185 dessert Nutrition 0.000 title claims abstract description 193
- 238000000034 method Methods 0.000 title claims abstract description 53
- 238000011158 quantitative evaluation Methods 0.000 title claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 claims abstract description 42
- 238000004364 calculation method Methods 0.000 claims abstract description 8
- 239000011148 porous material Substances 0.000 claims description 10
- 239000005416 organic matter Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 235000013351 cheese Nutrition 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 238000010606 normalization Methods 0.000 claims description 5
- 239000011435 rock Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000011156 evaluation Methods 0.000 abstract description 16
- 238000011161 development Methods 0.000 abstract description 11
- 238000004458 analytical method Methods 0.000 description 7
- 241001122767 Theaceae Species 0.000 description 4
- 235000009508 confectionery Nutrition 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000002407 reforming Methods 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 235000011850 desserts Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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Abstract
The invention discloses one kind being based on the preferred geology dessert quantitative evaluation method of parameter, the method includes：Main geologic dessert parameter is determined using the correlation between geology dessert parameter and gas production；Determine the weight of each main geologic dessert parameter；The geology dessert coefficient that weight calculation shale formation based on the main geologic dessert parameter is indicated with weight；The geology dessert of the shale formation is evaluated according to the geology dessert quantifies.The preferred main geology dessert parameter of method fortune of the present invention, the weight of shale formation main geologic dessert parameter is determined with independence weight coefficient；Accessed geology dessert evaluation result can effectively assist carrying out engineering development decision according to the method for the present invention, to greatly improve shale gas development efficiency, reduce development cost.
Description
Technical field
The present invention relates to geological exploration fields, and in particular to one kind being based on parameter preferred geology dessert quantitative assessment side
Method.
Background technology
" dessert ", which is shale formation, in geological exploration field, in shale formation has preferable reservoir geology quality and can
Fracturing engineering reforming character.Shale formation " dessert " is extremely important to shale formation exploitation, finds " dessert " and advantageously reduces page
Rock cost of exploration ＆ development improves gas bearing shale stratum production capacity.
In the prior art, there are a variety of dessert evaluation analysis methods for shale formation.Its common practice is profit
It is described " dessert " with the method for geological statistics：Shale formation brittle mineral content, porosity, thermal maturity, the content of organic matter,
The parameters such as net thickness, buried depth, gas content and water saturation, but these parameters there is no distinguish geology dessert parameter and
Engineering dessert parameter, and each weight of parameter.This results in the sweet tea of the shale formation gone out according to existing method evaluation analysis
Point can not reflect actual conditions well, especially, can not carry out careful division in geology and engineering direction.
Invention content
The present invention provides one kind being based on the preferred geology dessert quantitative evaluation method of parameter, the method includes：
Main geologic dessert parameter is determined using the correlation between geology dessert parameter and gas production；
Determine the weight of each main geologic dessert parameter；
The geology dessert coefficient that weight calculation shale formation based on the main geologic dessert parameter is indicated with weight；
The geology dessert of the shale formation is evaluated according to the geology dessert quantifies.
In one embodiment, determine that main geologic dessert is joined using the correlation between geology dessert parameter and gas production
Number, including：
Collect the geology dessert parameter of well log interpretation；
Obtain gas production, wherein the gas production is the open-flow capacity of shale formation gas testing production；
Calculate the related coefficient between each geology dessert parameter and the open-flow capacity；
According to the size of the related coefficient from the geology dessert parameter the preferred main geologic dessert parameter.
In one embodiment, the related coefficient between each geology dessert parameter and the open-flow capacity is calculated,
In, the related coefficient between each geology dessert parameter and the open-flow capacity is calculated using correlation coefficient process.
In one embodiment, the weight of each main geologic dessert parameter is obtained, wherein be based on independence weight coefficient
Method, which calculates, obtains the weight.
In one embodiment, it is based on independence weight coefficient and calculates the acquisition weight, including：
Calculate the related coefficient between each main geologic dessert parameter and the open-flow capacity；
Calculate each multiple correlation coefficient between the main geologic dessert parameter and other main geologic dessert parameters；
The coefficient of colligation of the main geologic dessert parameter is calculated, wherein：Coefficient of colligation=related coefficient/complex phase relationship
Number；
The weight is calculated according to the coefficient of colligation.
In one embodiment, the weight is calculated according to the coefficient of colligation, wherein normalizing is carried out to the coefficient of colligation
Change processing and obtains the weight to calculate.
In one embodiment, to the coefficient of colligation be normalized for：
Wherein, WiFor weight coefficient, RiFor related coefficient, CRiFor multiple correlation coefficient, i and n are positive integer, and n indicates main
The number of geology dessert parameter.
In one embodiment, the ground that the weight calculation shale formation based on the main geologic dessert parameter is indicated with weight
Matter dessert coefficient, including：
The main geologic dessert parameter is normalized,
Wherein, XiFor main geologic dessert parameter, Xi' it is the normalization of main geologic dessert parameter as a result, Xmax、XminPoint
Not Wei main geologic dessert parameter values section maximum, minimum value；
The geology dessert coefficient is calculated,
Wherein, XGFor the geology dessert coefficient.
In one embodiment, the geology dessert of the shale formation is evaluated according to the geology dessert quantifies, wherein
The numerical value of the geology dessert coefficient is bigger, and the geology dessert is more excellent.
In one embodiment：
The geology dessert parameter include shale content, siliceous content, calcareous content, the content of organic matter, cheese radical content,
Practical gas yield after porosity, gas saturation, pore pressure and pressure break；
The main geologic dessert parameter include organic carbon content, kerogen volume, gas-bearing porosity, water saturation and
Pore pressure.
To sum up, the preferred main geology dessert parameter of of the invention method fortune, page is determined with independence weight coefficient
The weight of rock stratum main geologic dessert parameter；Accessed geology dessert evaluation result can have according to the method for the present invention
The auxiliary of effect carries out engineering development decision, to greatly improve shale gas development efficiency, reduce development cost.
The other feature or advantage of the present invention will illustrate in the following description.Also, the present invention Partial Feature or
Advantage will be become apparent by specification, or be appreciated that by implementing the present invention.The purpose of the present invention and part
Advantage can be realized or be obtained by specifically noted step in specification, claims and attached drawing.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example and is used together to explain the present invention, be not construed as limiting the invention.In the accompanying drawings：
The flow chart of Fig. 1 methods according to an embodiment of the invention；
Fig. 2 single geology dessert parameters according to an embodiment of the invention and gas production relational graph；
Fig. 3 geology dessert coefficient result of calculations according to an embodiment of the invention and gas production relational graph.
Specific implementation mode
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and examples, whereby implementation personnel of the invention
Can fully understand that how the invention applies technical means to solve technical problems, and reach technique effect realization process and according to
The present invention is embodied according to above-mentioned realization process.If it should be noted that do not constitute conflict, each embodiment in the present invention
And each feature in each embodiment can be combined with each other, be formed by technical solution protection scope of the present invention it
It is interior.
" dessert ", which is shale formation, in geological exploration field, in shale formation has preferable reservoir geology quality and can
Fracturing engineering reforming character.Shale formation " dessert " is extremely important to shale formation exploitation, finds " dessert " and advantageously reduces page
Rock cost of exploration ＆ development improves gas bearing shale stratum production capacity.
In the prior art, there are a variety of dessert evaluation analysis methods for shale formation.Its common practice is profit
It is described " dessert " with the method for geological statistics：Shale formation brittle mineral content, porosity, thermal maturity, the content of organic matter,
The parameters such as net thickness, buried depth, gas content and water saturation, but these parameters there is no distinguish geology dessert parameter and
Engineering dessert parameter, and each weight of parameter.This results in the sweet tea of the shale formation gone out according to existing method evaluation analysis
Point can not reflect actual conditions well.
In view of the above-mentioned problems, the present invention proposes a kind of geology dessert quantitative evaluation method for shale formation.
Geology dessert parameter include shale content, siliceous content, calcareous content, the content of organic matter, cheese radical content, heat at
The parameters such as ripe degree, porosity, water saturation, pore pressure and total Gas content.It is both mutually closed between these geology dessert parameters
Connection, also independently of each other.
In practical applications, above-mentioned parameter is different the situation influence degree of geology dessert, if using same
Standard, that makes no exception is carried out evaluation to all parameters and is carried out the evaluation analysis of geology dessert with the evaluation result, is bound to
The analysis result to tally with the actual situation cannot be obtained.
Therefore, in an embodiment of the present invention, preferably go out from numerous geology dessert parameters first multiple to geology sweet tea
The situation of selecting influences several main geologic dessert parameters the most significant；Then further according to different main geologic desserts
Parameter divides weight to the influence size of geology dessert situation (specifically, for for shale formation geology dessert parameter, to be influenced
Big parameter should just assign big weight, influence small parameter and give small weight)；Finally according to main geologic dessert parameter
Geology dessert evaluate and weight is introduced into the assay.In this manner it is possible to which reality can be reflected by getting
The evaluation result of situation.
In practical applications, geology dessert can be reflected in aerogenesis numerical quantity under identical pressure break scale, and geology dessert is got over
Good, shale formation gas production is higher；Conversely, geology dessert is poorer, shale formation gas production is lower.Also, each geology dessert
Parameter is different to the influence to shale formation air content.
Therefore, in one embodiment, using gas production as preferred main geologic dessert parameter and additional response weight
Mark post.Contribution of these parameters to air content is effectively determined by the relationship between these parameters and between gas production,
It is preferred that going out main dessert parameter, and provide its weight.Compared to the prior art, method of the invention, is more advantageous to accurate evaluation
The geology dessert of shale formation.
Further, in one embodiment, geology dessert parameter include shale content, it is siliceous content, calcareous content, organic
Practical gas yield after matter content, cheese radical content, porosity, gas saturation, pore pressure and pressure break；Main geologic dessert is joined
Number includes organic carbon content, kerogen volume, gas-bearing porosity, water saturation and pore pressure.
Next based on attached drawing detailed description detailed process according to the method for the embodiment of the present invention, in the flow chart of attached drawing
The step of showing can execute in the computer system comprising such as a group of computer-executable instructions.Although in flow charts
Show the logical order of each step, but in some cases, it can be to execute shown different from sequence herein or retouch
The step of stating.
As shown in Figure 1, in one embodiment, being determined first with the correlation between geology dessert parameter and gas production
Main geologic dessert parameter (step S110)；Then the weight (step S120) of each main geologic dessert parameter is determined；It connects down
The geology dessert coefficient (step S130) indicated with weight come the weight calculation shale formation based on main geologic dessert parameter；Most
The geology dessert (step S140) of shale formation is evaluated according to geology dessert quantifies afterwards.
Specifically, in one embodiment, in step s 110, collecting the geology dessert parameter of well log interpretation first；Then
(or simultaneously) obtain gas production；Then the related coefficient between each geology dessert parameter and open-flow capacity is calculated；Last basis
The size of related coefficient preferred main geologic dessert parameter from geology dessert parameter.
Specifically, in one embodiment, gas production herein is the open-flow capacity of shale formation gas testing production.In the present invention
In other embodiments, other kinds of gas production parameter can also be used in step s 110.
Further, in one embodiment, each geology dessert parameter and open-flow capacity (production are calculated using correlation coefficient process
Tolerance) between related coefficient.Specifically, correlation coefficient process be according to the synteny power between each index and output-index come
Determine the importance and role of index.Equipped with index item X (X1, X2..., Xn), if index XiWith the related coefficient of output-index Y
It is bigger, then illustrate XiCo-linear relationship between output-index Y is stronger, therefore output-index is influenced also just to answer by the index
This is bigger.Related coefficient is：
Wherein, COV (X, Y) is X, and the covariance of Y, D (X) is the variance of X, and D (Y) is the variance of Y.
After calculating the related coefficient between each geology dessert parameter and open-flow capacity (gas production), to each phase relation
Number is ranked up, and preferably goes out main geologic dessert parameter according to sequence from big to small.
Further, in one embodiment, the geology dessert parameter gone out using well log interpretation and preferably, analyzes these parameters
With the relationship between practical post-flush production.By studying the single factor test regression relation between geology dessert parameter and gas production,
(abscissa is gas production, and ordinate is respectively from top to bottom the content of organic matter, porosity, cheese radical content, contains as shown in Figure 2
Gas saturation, pore pressure), exponential relationship is presented between geology dessert parameter and gas production in figure, i.e. geology dessert parameter is got over
Greatly, usual gas production is bigger, but single precision between parameter and gas production is poor.As seen from Figure 2, organic matter parametric index
Return correlation (the related coefficient square R of index return equation between gas production2) it is maximum, reach 0.5655, it is followed by dry
Junket root and porosity, correlation R2For 0.4183 and 0.373, minimum is gas saturation and pore pressure, their correlation
Property R2It is 0.1361 and 0.1787 respectively, explanation cannot characterize the air content and geology dessert on stratum with single parameter well.
This has just been proved compared to the prior art, and preferably multiple main geologic dessert parameters can be preferably anti-according to the method for the present invention
Answer the actual conditions of geology dessert.Also, shale formation geology dessert is characterized relative to single factor test, is used according to the method for the present invention
The geology dessert precision that Exchanger Efficiency with Weight Coefficient Method calculates increases substantially.
Further, in one embodiment, it is based on independence weight coefficient in the step s 120 and calculates acquisition parameters
Weight.Independence weight coefficient is to determine index weights according to the synteny power between each index and other indexs.
Equipped with index item X (X1,X2,…,Xm), if index XkIt is bigger with the multiple correlation coefficient of other indexs, then illustrate XkWith other indexs
Between co-linear relationship it is stronger, the easier linear combination by other indexs indicates that duplicate message is more, therefore the index
Weight also just should be smaller.
Even index XkBigger with the multiple correlation coefficient CR of other indexs, the weight of the index is smaller.Wherein complex phase relationship
Number is：
Wherein, X is index value；For its average value；For the expectation of X.
Therefore, in one embodiment, the related coefficient between each main geologic dessert parameter and gas production is calculated first；
And calculate the multiple correlation coefficient between each main geologic dessert parameter and other main geologic dessert parameters；Then complex phase is combined
The coefficient of colligation that Y-factor method Y calculates main geologic dessert parameter is closed, wherein：Coefficient of colligation=related coefficient/multiple correlation coefficient, i.e.,
Coefficient of colligation is Ri/CRi；Weight is finally calculated according to coefficient of colligation.
After the coefficient of colligation for getting main geologic dessert parameter, then calculate the opposite of each main geologic dessert parameter
Important coefficient, i.e. weight.Further, in one embodiment, coefficient of colligation is normalized to calculate the power of acquisition
Weight.
Specifically, in one embodiment, to coefficient of colligation be normalized for：
Wherein, WiFor weight coefficient, RiFor related coefficient, CRiFor multiple correlation coefficient, i and n are positive integer, and n indicates main
The number of geology dessert parameter.
Further, in one embodiment, the weight based on the calculated main geologic dessert parameter of above-mentioned calculating process
Calculate the geology dessert coefficient that shale formation is indicated with weight.In view of geology dessert parameter values section is inconsistent, therefore it is
It is unified and facilitate research, before calculating geology dessert coefficient also need to that geology dessert parameter is normalized.
Specifically, in one embodiment, the weight calculation shale formation based on main geologic dessert parameter is indicated with weight
The process of geology dessert coefficient include：
Main geologic dessert parameter is normalized,
Wherein, XiFor main geologic dessert parameter, Xi' it is the normalization of main geologic dessert parameter as a result, Xmax、XminPoint
Not Wei main geologic dessert parameter values section maximum, minimum value；
Geology dessert coefficient is calculated,
Wherein, XGFor geology dessert coefficient.
To sum up, in a concrete application example, evaluation geology dessert process is as follows：
(a) the geology dessert parameter of well log interpretation is collected；
(b) open-flow capacity of shale formation gas testing production is collected；
(c) data collected according to (a) and (b) calculate the related coefficient between geology dessert parameter and open-flow capacity,
Ri；
(d) according to the preferred main geologic dessert parameter of related coefficient size, Xi；
(e) the multiple correlation coefficient size of each main geologic dessert parameter and other parameters, CR are calculatedi；
(f) 1/CR reciprocal of multiple correlation coefficient is calculatedi；
(g) the product R reciprocal of the related coefficient and the multiple correlation coefficient calculated in (f) in (c) is calculatedi/CRi；
(h) (g) numerical value calculated is normalized to get to the weight W of each parameter according to formula (3)i；
(i) according to formula (4) to main geologic dessert parameter XiNumerical value be normalized, main geologic dessert parameter Xi
Normalization result Xi'；
(j) gas bearing shale stratum X is calculated according to formula (5)G；
(k) judge that gas bearing shale stratum geology dessert is good and bad, XGNumerical value is bigger, then geology dessert is better.
Further, final evaluation result is simply divided into excellent by evaluation result in one embodiment for ease of understanding
Bad two etc., wherein XGIllustrate that geology dessert is excellent more than 0.5, illustrates that geology dessert is bad less than 0.5.
To sum up, the preferred main geology dessert parameter of of the invention method fortune, page is determined with independence weight coefficient
The weight of rock stratum main geologic dessert parameter；Accessed geology dessert evaluation result can have according to the method for the present invention
The auxiliary of effect carries out engineering development decision, to greatly improve shale gas development efficiency, reduce development cost.
Next with the implementation process of the method for the concrete application example description present invention.In an application scenarios, according to
Shale formation result of log interpretation selects shale content Vs, siliceous content Vq, calcareous content Vc, content of organic matter TOC, cheese
The parameters such as radical content Vker, porosity Φ (POR), gas saturation Sg, pore pressure Pp and total Gas content, total air content pressure
Rear practical gas yield is split to indicate.By studying the related coefficient between these dessert parameters and gas production, find TOC, Φ,
Vker, Pf, PD are affected to gas production, and related coefficient is more than 0.35, and the influence of Vs, Vq, Vc to gas production is little, related
Coefficient is less than 0.15 (as shown in table 1).
Table 1
By the analysis to shale formation geology dessert parameter, preferably goes out organic carbon content, kerogen volume, contains spiracular slit
Degree, the main affecting parameters that five parameters of water saturation and pore pressure are shale formation geology dessert, and it is to aerogenesis
The influence size of amount is：Pf>TOC>Φ>Sg>Vker。
Then the geology dessert parameter preferably gone out using correlation coefficient process, must there emerged a the comprehensive of parameter in conjunction with multiple correlation coefficient method
Close coefficients Ri/CRi.From which further follow that the weight (as shown in table 2) of the main dessert parameter of shale formation.
| Parameter | TOC (%) | POR (%) | Vker (%) | Sg (%) | Pf(g/cm3) |
| Sequence | 2 | 3 | 5 | 4 | 1 |
| 1/CRi | 0.703 | 0.633 | 0.545 | 0.317 | 0.319 |
| Coefficient of colligation | 0.393 | 0.264 | 0.194 | 0.127 | 0.182 |
| Normalization | 0.339 | 0.228 | 0.167 | 0.110 | 0.157 |
Table 2
By calculating the geology dessert coefficient in Tables 1 and 2, compared with the practical gas production of shale formation, such as institute in Fig. 3
Show that (abscissa is gas production, and ordinate is geology dessert coefficient, R2For square of related coefficient).Shale formation geology sweet tea in figure
Dot factor is higher, and practical gas production of exploiting is higher, and it is smaller that geology dessert gets over low yield tolerance, between gas production and geology dessert coefficient
It has exponent relation, the correlation (R between them2) reach 0.76, it is slightly less than the geology dessert calculated with radar Area Model, together
The geology dessert that sample evaluates these wells is preferable, and is much better than the evaluation result of single parameter.
While it is disclosed that embodiment content as above but described only to facilitate understanding the present invention and adopting
Embodiment is not limited to the present invention.Method of the present invention can also have other various embodiments.Without departing substantially from
In the case of essence of the present invention, those skilled in the art make various corresponding changes or change in accordance with the present invention
Shape, but these corresponding changes or deformation should all belong to the scope of the claims of the present invention.
Claims (10)
1. one kind being based on the preferred geology dessert quantitative evaluation method of parameter, which is characterized in that the method includes：
Main geologic dessert parameter is determined using the correlation between geology dessert parameter and gas production；
Determine the weight of each main geologic dessert parameter；
The geology dessert coefficient that weight calculation shale formation based on the main geologic dessert parameter is indicated with weight；
The geology dessert of the shale formation is evaluated according to the geology dessert quantifies.
2. according to the method described in claim 1, it is characterized in that, utilizing the correlation between geology dessert parameter and gas production
Determine main geologic dessert parameter, including：
Collect the geology dessert parameter of well log interpretation；
Obtain gas production, wherein the gas production is the open-flow capacity of shale formation gas testing production；
Calculate the related coefficient between each geology dessert parameter and the open-flow capacity；
According to the size of the related coefficient from the geology dessert parameter the preferred main geologic dessert parameter.
3. according to the method described in claim 2, it is characterized in that, calculating each geology dessert parameter and the no choked flow
Related coefficient between amount, wherein calculated between each geology dessert parameter and the open-flow capacity using correlation coefficient process
Related coefficient.
4. according to the method described in claim 2, it is characterized in that, obtain the weight of each main geologic dessert parameter,
Wherein, it is based on independence weight coefficient and calculates the acquisition weight.
5. according to the method described in claim 4, obtain the weight it is characterized in that, being calculated based on independence weight coefficient,
Including：
Calculate the related coefficient between each main geologic dessert parameter and the open-flow capacity；
Calculate each multiple correlation coefficient between the main geologic dessert parameter and other main geologic dessert parameters；
The coefficient of colligation of the main geologic dessert parameter is calculated, wherein：Coefficient of colligation=related coefficient/multiple correlation coefficient；
The weight is calculated according to the coefficient of colligation.
6. according to the method described in claim 5, it is characterized in that, calculating the weight according to the coefficient of colligation, wherein right
The coefficient of colligation is normalized obtains the weight to calculate.
7. according to the method described in claim 6, it is characterized in that, to the coefficient of colligation be normalized for：
Wherein, WiFor weight coefficient, RiFor related coefficient, CRiFor multiple correlation coefficient, i and n are positive integer, and n indicates main geologic
The number of dessert parameter.
8. the method according to the description of claim 7 is characterized in that the weight calculation page based on the main geologic dessert parameter
The geology dessert coefficient that rock stratum is indicated with weight, including：
The main geologic dessert parameter is normalized,
Wherein, XiFor main geologic dessert parameter, X 'iFor main geologic dessert parameter normalization as a result, Xmax、XminRespectively
Maximum, the minimum value in main geologic dessert parameter values section；
The geology dessert coefficient is calculated,
Wherein, XGFor the geology dessert coefficient.
9. according to the method described in claim 8, it is characterized in that, evaluating the shale according to the geology dessert quantifies
The geology dessert on stratum, wherein the numerical value of the geology dessert coefficient is bigger, and the geology dessert is more excellent.
10. according to the method described in any one of claim 1-9, it is characterised in that：
The geology dessert parameter includes shale content, siliceous content, calcareous content, the content of organic matter, cheese radical content, hole
Practical gas yield after degree, gas saturation, pore pressure and pressure break；
The main geologic dessert parameter includes organic carbon content, kerogen volume, gas-bearing porosity, water saturation and hole
Pressure.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109343019A (en) * | 2018-11-05 | 2019-02-15 | 中国矿业大学(北京) | A kind of Georadar Data means of interpretation and device |
| CN111046585A (en) * | 2019-12-27 | 2020-04-21 | 中国地质调查局成都地质调查中心 | Shale gas sweet spot prediction method based on multivariate linear regression analysis |
| CN111428907A (en) * | 2020-02-17 | 2020-07-17 | 中国石油化工股份有限公司 | Method for optimizing dessert for old oil field development |
| CN112031740A (en) * | 2019-05-15 | 2020-12-04 | 中国石油化工股份有限公司 | Shale gas geological dessert evaluation method and device based on stratum elements |
| CN113537702A (en) * | 2021-06-04 | 2021-10-22 | 中国石油大学(北京) | Geological dessert evaluation method, device, equipment and storage medium |
| CN114991745A (en) * | 2021-11-01 | 2022-09-02 | 中国石油天然气股份有限公司 | Shale oil reservoir dessert identification method and device |
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| CN111428907B (en) * | 2020-02-17 | 2022-12-02 | 中国石油化工股份有限公司 | Method for optimizing dessert for old oil field development |
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