CN108561129A - Craven fault block reservoirs water to oil area remaining oil fast appraisement method - Google Patents
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000011156 evaluation Methods 0.000 claims abstract description 26
- 238000009826 distribution Methods 0.000 claims abstract description 22
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 238000012216 screening Methods 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 230000035699 permeability Effects 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000008595 infiltration Effects 0.000 claims description 4
- 238000001764 infiltration Methods 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- 230000001020 rhythmical effect Effects 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000007621 cluster analysis Methods 0.000 claims description 2
- 238000011161 development Methods 0.000 abstract description 19
- 238000011084 recovery Methods 0.000 abstract description 14
- 239000003921 oil Substances 0.000 description 231
- 230000037230 mobility Effects 0.000 description 12
- 238000004458 analytical method Methods 0.000 description 7
- 239000004519 grease Substances 0.000 description 6
- 238000011160 research Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000033764 rhythmic process Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000013213 extrapolation Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 230000005311 nuclear magnetism Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011158 quantitative evaluation 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 present invention relates to a kind of craven fault block reservoirs water to oil area remaining oil fast appraisement methods, include the following steps：Different type oil reservoir water to oil area remaining oil Dominated Factors are evaluated, remaining oil enrichment degree under different condition is analyzed, realize water to oil area remaining oil screening and assessment；Establish oil reservoir mobility and remaining oil relationship plate；Realize the mathematical computations of intermediate zone potentiality of remaining oil composite index；Analyze remaining oil abundance plane distribution.The present invention can make full use of the different geology of different oil reservoirs and Development Factors carry out classification oil reservoir potentiality of remaining oil evaluation, it can realize the Fast Evaluation for mid-later development phase oil reservoir water to oil area potentiality of remaining oil, improve oil reservoir intermediate zone reserves exploitation degree out of control and ultimate recovery, effectively reduce oil field craven fault block reservoirs declining rate of recovery, extend the stable yields time limit in oil field, oil reservoir ultimate recovery is significantly improved, the needs of practical application can be met well.
Description
Technical field
The invention belongs to oil-gas field development technical fields, and in particular to a kind of craven fault block reservoirs water to oil area remaining oil is fast
Fast evaluation method.
Background technology
The connotation of water to oil area refers in oil reservoir or oil-gas reservoir, and oil-containing outer boundary is between oil-containing inner boundary (water boundary)
Or the intermediate zone that oil-containing outer boundary is surrounded (when no oil-containing inner boundary).Main packet is studied about water to oil area Remaining Oil Saturation Evaluation
Include the research of two aspects：1. the identification of oil reservoir water to oil area；Determine that the research of water to oil area position is not very much, master
If determining the position of oil-water interfaces using well log interpretation, capillary pressure, core analyzing data etc.；Capillary pressure data passes through
The depth of an oil-water interfaces can be directly obtained by calculating, and delimit oil-water interfaces by well log interpretation, core analyzing data etc.
It then needs on the basis of accurately identifying oil-water-layer, divides grease combined system, understand fully the vertical syntagmatic of oil-water-layer, in turn
Oil-water interfaces delimited in a suitable depth；2. water to oil area Remaining Oil Saturation Evaluation is studied；Development late stage oil reservoir is surplus at present
The main method of excess oil analysis has dynamic-analysis method, dynamic monitor method, Flow Units, nuclear magnetic resonance log method, numerical simulation
A variety of methods such as method, but there are various problems, such as dynamic in the analysis of water to oil area remaining oil for these relative maturity methods
Analytic approach, dynamic monitor method need to study a large amount of oil-water wells of area's distribution, but often drilling hole number is limited for water to oil area, Numerical-Mode
The quasi- method required time is again longer thus larger for water to oil area remaining oil research technology difficulty.The country is to grease mistake at present
It crosses few with the research practice for implementing to tap the latent power.To the understanding of oils water boundary from barodynamics analysis shows：Oil gathers in trap
It is necessarily horizontal by gravitational differentiation and the law of buoyancy oil-water interfaces when collection.However, due to the complexity of geological conditions, grease
Interface true form is not horizontal, and form and characteristic distributions become because of geological conditions, oil property, development scheme difference
Change, in practice it has proved that there is also the potentiality taped the latent power other than oils water boundary and below oil-water interfaces.
Enough attention are not yet caused to the significance for improving recovery ratio to the potentiality of reservoir boundary and thus at present.It is existing
There are the problem of technology and disadvantage to have：(1) the water to oil area position under oil reservoir reset condition and oil and water zonation situation are easy
In evaluation, but water to oil area oil and water zonation rule is complicated, and after Reservoir Development the zone grease amplitude of variation it is big,
Pace of change is fast, and influence factor is more, situation is complicated, thus conventional dynamic-analysis method, dynamic monitor method, Flow Units, nuclear-magnetism
The methods of resonance well logging method, Method for Numerical are difficult to accurately carry out Remaining Oil Saturation Evaluation；(2) due to mid-later development phase grease mistake
The influence that band experienced various Development Factors is crossed, causes Remaining Oil Distribution complicated, thus Remaining Oil Saturation Evaluation process is complicated, speed
Degree is slow, efficiency is low.From the point of view of current research conditions both at home and abroad, the water to oil area petroleum distribution under oil reservoir reset condition characterizes skill
Art relative maturity, but water to oil area remaining oil distribution is influenced by factors after developing, the regularity of distribution is complicated, for opening
The research for sending out middle and later periods water to oil area Remaining Oil Saturation Evaluation is less, especially Fast Evaluation, correlative study that so far there are no.Oil
Water intermediate zone remaining oil influence factor is more, and Remaining Oil Saturation Evaluation difficulty is big, and water to oil area remaining oil is mainly by geologic(al) factor, exploitation
The influence of factor.Geological factors affecting includes mainly：Construction feature, reservoir properties, core intersection, sedimentary micro, attitude of stratum,
Every interlayer development, edge-bottom water energy, fluid properties, edge viscous crude ring etc.；Developing influence factor includes：Development scheme, well pattern shape
Formula, fluid production rate, stress level, injection-production ratio etc..
Invention content
For the above-mentioned prior art the problem of, the purpose of the present invention is to provide one kind can avoid above-mentioned skill occur
The craven fault block reservoirs water to oil area remaining oil fast appraisement method of art defect.
In order to achieve the above-mentioned object of the invention, technical solution provided by the invention is as follows：
A kind of craven fault block reservoirs water to oil area remaining oil fast appraisement method, includes the following steps：
Step (1) evaluates different type oil reservoir water to oil area remaining oil Dominated Factors, analyzes remaining oil under different condition
Enrichment degree realizes water to oil area remaining oil screening and assessment；
Step (2) establishes oil reservoir mobility and remaining oil relationship plate；
Step (3) realizes the mathematical computations of intermediate zone potentiality of remaining oil composite index；
Step (4) analyzes remaining oil abundance plane distribution.
Further, step (1) specifically includes：
Step 1：Establish typical mould：The characteristics of according to oil field oil reservoir, establishes all kinds of craven fault block reservoirs typical models；
Step 2：Analyze Edge water energy factor：The factor for designing weak edge-wa- ter reservoir and strong edge-wa- ter reservoir is same, in Bian Shuineng
Measure it is different in the case of, compare two oil reservoirs remaining oil pattern and pressure field distribution pattern；
Step 3：Analyzing different permeabilities influences：Compare low-permeability oil deposit and middle infiltration oil reservoir water to oil area remaining oil
The regularity of distribution；
Step 4：Analyzing different rhythmic naturies influences；
Step 5：Analyzing different injection-production ratios influences.
Further, step (2) includes：Mobility k/ μ and intermediate zone residue moveable oil curve plate are established, the plate is passed through
Judge the Oil Reservoir Types with larger potentiality of remaining oil in all kinds of oil reservoirs.
Further, step (3) includes：Step 1)：Obtain all kinds of indexs that oil reservoir injection adopts channelling assessment indicator system；Step
It is rapid 2)：Carry out potential comprehensive exponent obfuscation Cluster Assessment.
Further, each index calculation formula of the step 1) includes：
Intermediate zone oil saturation：
Individual well daily oil production：
Relative mobility ratio：
Oil productive capacity index：
Unit oil displacement efficiency：
Oil storage equivalent proportion：
Abundance of remaining reserves：
Oil storage equivalent abundance：
Further, step 2) is specially：Intermediate zone exploitation potential assessment index based on foundation, utilizes fuzzy clustering side
Method determines different zones advantage residue potentiality to be exploited, and to determine, targetedly excavating resistance is prepared.
Further, the step of fuzzy cluster analysis is：Primary data standardizes；Construct fuzzy similarity matrix；Evaluation is single
First fuzzy clustering.
Craven fault block reservoirs water to oil area remaining oil fast appraisement method provided by the invention, passes through multifactor classification potentiality
Evaluation method describes the Remaining Oil Distribution of craven fault block reservoirs water to oil area difference zone, quantitative assessment craven fault block reservoirs
Water to oil area potentiality of remaining oil, can make full use of the different geology of different oil reservoirs and Development Factors carry out classification oil reservoir residue
Oily Potential Evaluation can be realized for the Fast Evaluation of mid-later development phase oil reservoir water to oil area potentiality of remaining oil, improve oil
Intermediate zone reserves exploitation degree out of control and ultimate recovery are hidden, oil field craven fault block reservoirs declining rate of recovery is effectively reduced, prolongs
The stable yields time limit in oil field is grown, hence it is evident that improve oil reservoir ultimate recovery, the needs of practical application can be met well.
Description of the drawings
Fig. 1 is the flow chart of the present invention；
Fig. 2 is that different edge-wa- ter reservoirs are aqueous with recovery percent of reserves comparison diagram；
Fig. 3 is that different infiltration oil reservoirs are aqueous and recovery percent of reserves comparison diagram；
Fig. 4 is that different rhythm oil reservoirs are aqueous with recovery percent of reserves comparison diagram；
Fig. 5 is aqueous with recovery percent of reserves comparison diagram when being different injection-production ratios；
Fig. 6 is water to oil area remaining oil and mobility graph of relation；
Fig. 7 is Critical scores oil reservoir E1f1 1Series of strata water to oil area remaining oil abundance evaluation figure；
Fig. 8 is Critical scores oil reservoir E1f2 3Series of strata water to oil area remaining oil abundance evaluation figure.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with the accompanying drawings and specific implementation
The present invention will be further described for example.It should be appreciated that described herein, specific examples are only used to explain the present invention, and does not have to
It is of the invention in limiting.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
Craven fault block reservoirs water to oil area remaining oil fast appraisement method, principle are in tail period craven fault block reservoirs
Using the methods of fuzzy mathematics on the basis of water to oil area remaining oil Dominated Factors, realize that craven fault block reservoirs water to oil area is remaining
Oily quantitative assessment, shown referring to Fig.1, this approach includes the following steps：
Step (1) evaluates different type oil reservoir water to oil area remaining oil Dominated Factors, utilizes different Edge water energies, difference
Permeability, different mobilities, different rhythmic naturies, whether there is or not evaluation (such as Fig. 2 that the factors such as viscous crude ring influence water to oil area remaining oil
Shown in~Fig. 5), remaining oil enrichment degree under different condition is analyzed, realizes water to oil area remaining oil screening and assessment；
Step (2) establishes oil reservoir mobility and remaining oil relationship plate, judges to have in all kinds of oil reservoirs by the plate larger
The Oil Reservoir Types of potentiality of remaining oil point the direction for further Tapping Residual Oil；
Step (3) realizes the mathematical computations of intermediate zone potentiality of remaining oil composite index using fuzzy clustering evaluation method；It crosses
It is to obtain to evaluate the specific specific substratum of oil reservoir by the computational methods in specific oil reservoir to cross with potentiality of remaining oil composite index
One parameter of remaining oil enrichment degree；
Step (4) analyzes remaining oil abundance plane distribution, determines specific oil reservoir potentiality of remaining oil, is bored by calculating full oil reservoir
The water to oil area potentiality of remaining oil composite index of well completes remaining oil abundance flat distribution map, to realize craven fault block reservoirs
Water to oil area remaining oil rapid quantitatively evaluating.
Step (1) specifically includes following steps：
Step 1：Establish typical mould：The characteristics of according to oil field oil reservoir, establishes all kinds of craven fault block reservoirs typical models；
Step 2：Analyze Edge water energy (weak edge-wa- ter reservoir and strong edge-wa- ter reservoir) factor：The weak edge-wa- ter reservoir of conceptual design and
The factors such as strong edge-wa- ter reservoir development scheme, flooding pattern are same, only different in Edge water energy, compare two oil reservoirs
Remaining oil pattern and pressure field distribution pattern；
Step 3：Analyzing different permeabilities (low-permeability oil deposit and middle infiltration oil reservoir) influences：Low-permeability oil deposit is compared in
It permeates known to oil reservoir water to oil area Remaining Oil Distribution：LOW PERMEABILITY RESERVOIR (10md) internal flooding is developed, edge residue oil phase
To enrichment；
Step 4：Analyzing different rhythmic naturies (positive rhythm reservoir and anti-rhythm oil reservoir) influences：Compare different prosodic features oil
It hides, when injection-production ratio is 1:When 1, positive rhythm reservoir recovery percent of reserves is big, and aqueous to rise slowly, development effectiveness is good, and the anti-rhythm is oil reservoir produced
Degree is low, and development effectiveness is poor, and intermediate zone remaining oil is opposite to be enriched with, and is main force's zone that lower step is taped the latent power；
Step 5：Analyzing different injection-production ratios influences：LOW PERMEABILITY RESERVOIR theoretical model is shown：There are offices with water injection well face region
Portion boundary is excessive, injection-production ratio 1：When 1, local oils water boundary extrapolation 20m, injection-production ratio 1：When 1.5, extrapolate 40m, and injection-production ratio is bigger,
Boundary extrapolation is remoter.
Step (2) specifically includes following steps：
Mobility k/ μ and intermediate zone residue moveable oil curve plate (Fig. 6) are established, all kinds of oil are judged by the plate (Fig. 6)
Oil Reservoir Types with larger potentiality of remaining oil in Tibetan, point the direction for further Tapping Residual Oil.Reservoir properties are better, exploitation
Effect is better, and the block of intermediate row of water injector is weak, and edge water propelling effect is apparent；It is remaining with intermediate zone by establishing mobility k/ μ
Moveable oil curve plate analyzes (Fig. 6), and when oil reservoir mobility is equal to 15, intermediate zone edge moveable oil corner feature is apparent, therefore with
This thinks that there are potentialities to be exploited for water to oil area as oil reservoir mobility ＜ 15.
Step (3) specifically includes following steps：
Step 1)：Obtain all kinds of indexs shown in table 1；
1 oil reservoir injection of table adopts channelling assessment indicator system
The calculation formula of each index is as follows：
Intermediate zone oil saturation：
Wherein, L represents water to oil area width；
Intermediate zone well oil output：
Wherein, K represents in-place permeability, and h represents oil reservoir average effective caliper, reRepresent oil well drainage radius, rwRepresent oil
Well radius, S represent skin factor, kroRepresent oil relative permeability, μoViscosity of crude is represented,
BoRepresent oil volume factor in formation, PeRepresent stratum outer boundary pressure i.e. supply pressure, PwfRepresent stratum inner edge
Boundary's pressure, that is, flowing bottomhole pressure (FBHP), QlRepresent intermediate zone oilwell produced fluid amount, foRepresent oil well oil productivity；
Relative mobility ratio：
Wherein, μoRepresent viscosity of crude, μwRepresent water flooding viscosity, SwcOil reservoir irreducible water saturation is represented,It represents average
Saturation degree, krwRepresent water phase relative permeability；
Oil productive capacity index：
Wherein, k represents effective permeability, SwRepresent water saturation；
Unit oil displacement efficiency：
Wherein, BoiOil volume factor in formation under initial condition is represented,Represent remaining oil saturation, SoiIt represents original
Oil saturation；
Oil storage equivalent proportion：
Wherein, EDRepresentative unit oil displacement efficiency；
Abundance of remaining reserves：
Wherein, NoPetroleum-in-place is represented, A represents oil reservoir oil area,Average effective porosity is represented,
ρoRepresent stock tank oil density；
Oil storage equivalent abundance：
Wherein, ΩoRepresent Abundance of remaining reserves, λowRepresent oil storage equivalent proportion；
By above formula, oil reservoir injection can be obtained and adopt all index value ranges needed for channelling assessment indicator system；
Step 2)：Carry out potential comprehensive exponent obfuscation Cluster Assessment：Intermediate zone exploitation potential assessment index based on foundation,
Using fuzzy clustering method, different zones advantage residue potentiality to be exploited is determined, to determine, targetedly excavating resistance is prepared；Mould
The step of clustering analysis is：Primary data standardizes；Construct fuzzy similarity matrix；Evaluation unit fuzzy clustering.
Fuzzy overall evaluation, potentiality to be exploited of gaining the upper hand index are carried out by Multiple factors above to each object, and made
Advantage potentiality to be exploited exponential accumulation distribution frequency curve (as shown in table 2).
2 fuzzy relationship matrix r of table
Step (4) is specially：
By the calculating of the water to oil area potentiality of remaining oil composite index of full oil reservoir drilling well, remaining oil abundance plane is completed
Distribution map (Fig. 7~Fig. 8), to realize craven fault block reservoirs water to oil area remaining oil rapid quantitatively evaluating.From remaining oil abundance
Flat distribution map can be seen that in Critical scores oil reservoir E1f2 3And E1f1 1Series of strata water to oil area has certain potentiality to be exploited --
The deployed position for having adjustment well can improve the reserves controlling extent of oil reservoir by encryption.
On the basis of being evaluated the present invention is based on different type oil reservoir water to oil area remaining oil Dominated Factors, grease transition is established
Band residual oil quantitative evaluation plate establishes water to oil area difference zone under multifactor impact using fuzzy clustering basic theory
It is classified Assessment Method on Potential, the stage development potentiality of the same oil reservoir water to oil area difference zone of quantitative description ultimately form small
The composite index fast appraisement method of fault block oil reservoir water to oil area potentiality of remaining oil, being capable of efficient Fast Evaluation water to oil area
Potentiality of remaining oil.The present invention, which proposes, utilizes oil reservoir mobility and remaining oil relationship plate macroscopic analysis different type oil reservoir remaining oil
Potentiality；It proposes intermediate zone potentiality of remaining oil composite index and is calculated using fuzzy clustering evaluation method.Energy of the present invention
It enough makes full use of the different geology of different oil reservoirs and Development Factors to carry out classification oil reservoir potentiality of remaining oil evaluation, can realize and be directed to
The Fast Evaluation of mid-later development phase oil reservoir water to oil area potentiality of remaining oil.The method of the present invention is in oil field Complex Fault Block Oil Reservoir reality
It is widely used in the production of border, effectively directs the adjustment of craven fault block reservoirs water to oil area remaining oil and tap the latent power, improved
Oil reservoir intermediate zone reserves exploitation degree out of control and ultimate recovery, effectively reduce oil field craven fault block reservoirs production decline width
Degree, extends the stable yields time limit in oil field, hence it is evident that improve oil reservoir ultimate recovery, achieve apparent development effectiveness and benefit.
Craven fault block reservoirs water to oil area difference zone can be described by multifactor classification Potential Evaluation using the method for the present invention
Remaining Oil Distribution, quantitative assessment craven fault block reservoirs water to oil area potentiality of remaining oil.
Embodiments of the present invention above described embodiment only expresses, the description thereof is more specific and detailed, but can not
Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection model of the present invention
It encloses.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (7)
1. a kind of craven fault block reservoirs water to oil area remaining oil fast appraisement method, which is characterized in that include the following steps：
Step (1) evaluates different type oil reservoir water to oil area remaining oil Dominated Factors, analyzes remaining oil enrichment under different condition
Degree realizes water to oil area remaining oil screening and assessment；
Step (2) establishes oil reservoir mobility and remaining oil relationship plate；
Step (3) realizes the mathematical computations of intermediate zone potentiality of remaining oil composite index；
Step (4) analyzes remaining oil abundance plane distribution.
2. craven fault block reservoirs water to oil area remaining oil fast appraisement method according to claim 1, which is characterized in that step
Suddenly (1) specifically includes：
Step 1：Establish typical mould：The characteristics of according to oil field oil reservoir, establishes all kinds of craven fault block reservoirs typical models；
Step 2：Analyze Edge water energy factor：The factor for designing weak edge-wa- ter reservoir and strong edge-wa- ter reservoir is same, Edge water energy not
In the case of the same, the remaining oil pattern and pressure field distribution pattern of two oil reservoirs are compared；
Step 3：Analyzing different permeabilities influences：Compare low-permeability oil deposit and middle infiltration oil reservoir water to oil area remaining oil distribution
Rule；
Step 4：Analyzing different rhythmic naturies influences；
Step 5：Analyzing different injection-production ratios influences.
3. the craven fault block reservoirs water to oil area remaining oil fast appraisement method according to claim 1-2, which is characterized in that
Step (2) includes：Mobility k/ μ and intermediate zone residue moveable oil curve plate are established, judges have in all kinds of oil reservoirs by the plate
There are the Oil Reservoir Types of larger potentiality of remaining oil.
4. the craven fault block reservoirs water to oil area remaining oil fast appraisement method according to claim 1-3, which is characterized in that
Step (3) includes：Step 1)：Obtain all kinds of indexs that oil reservoir injection adopts channelling assessment indicator system；Step 2)：Carry out potential comprehensive
Exponent obfuscation Cluster Assessment.
5. the craven fault block reservoirs water to oil area remaining oil fast appraisement method according to claim 1-4, which is characterized in that
Each index calculation formula of the step 1) includes：
Intermediate zone oil saturation：
Individual well daily oil production：
Relative mobility ratio：
Oil productive capacity index：
Unit oil displacement efficiency：
Oil storage equivalent proportion：
Abundance of remaining reserves：
Oil storage equivalent abundance：
6. the craven fault block reservoirs water to oil area remaining oil fast appraisement method according to claim 1-5, which is characterized in that
Step 2) is specially：Intermediate zone exploitation potential assessment index based on foundation determines that different zones are excellent using fuzzy clustering method
Gesture residue potentiality to be exploited, to determine, targetedly excavating resistance is prepared.
7. the craven fault block reservoirs water to oil area remaining oil fast appraisement method according to claim 1-6, which is characterized in that
The step of fuzzy cluster analysis is：Primary data standardizes；Construct fuzzy similarity matrix；Evaluation unit fuzzy clustering.
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| CN116066067A (en) * | 2021-12-30 | 2023-05-05 | 中国石油天然气集团有限公司 | Evaluation method for potential of residual oil in oil field and application thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111287739A (en) * | 2020-03-12 | 2020-06-16 | 中国石油天然气集团有限公司 | Residual oil distribution prediction method based on formation crude oil viscosity |
| CN111287739B (en) * | 2020-03-12 | 2023-05-26 | 中国石油天然气集团有限公司 | Residual oil distribution prediction method based on stratum crude oil viscosity |
| CN112001132A (en) * | 2020-08-06 | 2020-11-27 | 中国石油化工股份有限公司 | Rigid water-drive reservoir residual oil distribution condition determining method and oil extraction method |
| CN116066067A (en) * | 2021-12-30 | 2023-05-05 | 中国石油天然气集团有限公司 | Evaluation method for potential of residual oil in oil field and application thereof |
| CN116066067B (en) * | 2021-12-30 | 2024-02-02 | 中国石油天然气集团有限公司 | Evaluation method for potential of residual oil in oil field and application thereof |
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