CN106384188A - Water flooding production potential evaluating method for single horizontal well of strong heterogeneous carbonatite oil reservoir - Google Patents
Water flooding production potential evaluating method for single horizontal well of strong heterogeneous carbonatite oil reservoir Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000010430 carbonatite Substances 0.000 title abstract 4
- 238000011161 development Methods 0.000 claims abstract description 49
- 238000011156 evaluation Methods 0.000 claims abstract description 39
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 46
- 239000003129 oil well Substances 0.000 claims description 34
- 238000002347 injection Methods 0.000 claims description 22
- 239000007924 injection Substances 0.000 claims description 22
- 238000000605 extraction Methods 0.000 claims description 10
- 238000012937 correction Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 6
- 238000012067 mathematical method Methods 0.000 claims description 5
- 230000008901 benefit Effects 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 description 4
- 230000004069 differentiation Effects 0.000 description 3
- 238000011002 quantification Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004836 empirical method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
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Abstract
The invention discloses a water flooding production potential evaluating method for a single horizontal well of a strong heterogeneous carbonatite oil reservoir. An evaluation index group for evaluating the water flooding development degree of the horizontal well is defined on the basis of geological reservoir condition of the strong heterogeneous carbonatite oil reservoir and the water flooding production dynamic feature of the horizontal well and according to difference in reserve control capabilities in different states in the water flooding developing period of the horizontal well; a calculation model which can quantify the development degrees in different water flooding development stages of the horizontal well of the strong heterogeneous carbonatite oil reservoir is established by utilizing a weighted and zero-dimension method according to main factors that influence the evaluation indexes; and refined differentiated water flooding regulation and control of the horizontal well are realized, and the water flooding effect is optimized.
Description
Technical field
The present invention relates to a kind of strong heterogeneous carbonate reservoir horizontal well individual well flooding production Assessment Method on Potential, belong to
Petroleum natural gas exploration field.
Background technology
Waterflooding extraction is the most frequently used secondary oil recovery means in oil field.Common analysis and evaluation individual well waterflooding extraction potentiality side
Method is primarily adapted for use in Homogeneous Reservoir（Or weak heterogeneous reservoir）And straight well.For strong anisotropism Carbonate Reservoir horizontal well note
Water is developed, and the strong anisotropism of reservoir leads to the waterflooding extraction feature significant difference of different parts horizontal well, Horizontal Well simultaneously
Track distance walks strong Heterogeneous reservoir also makes water injection of horizontal well Development characteristics increasingly complex compared with straight well.
There is problems with strong anisotropism Carbonate Reservoir horizontal well individual well waterflooding extraction Potential Evaluation：
1st, the geology of impact horizontal well individual well flooding production potentiality and Development Factors are more, and same influence factor is to varying level
The influence degree of well individual well productive potentialities is different, and these influence factors are difficult to be quantized.
2nd, affect the various factors of horizontal well individual well flooding production potentiality in comprehensive analysis after, the quantitative sign of neither one
The index of individual well flooding production potentiality.
3rd, extract produces one of important means being waterflooding oil field in middle and high Water-cut Period stable yields, and currently without fixed
The index of amount is evaluated to horizontal well individual well future extract productive potentialities.
Content of the invention
It is an object of the invention to the problems referred to above overcoming prior art to exist, provide a kind of strong heterogeneous carbonate oil
Hide horizontal well individual well flooding production Assessment Method on Potential.The present invention is capable of horizontal well is become more meticulous, the water filling of differentiation is adjusted
Control, optimal water injection effect.
For achieving the above object, the technical solution used in the present invention is as follows：
A kind of strong heterogeneous carbonate reservoir horizontal well individual well flooding production Assessment Method on Potential it is characterised in that include as
Lower step：
A, according to strong anisotropism Carbonate Reservoir horizontal well different injection development phase feature, strong anisotropism is evaluated in definition
Carbonate Reservoir horizontal well is in the evaluation index group of different development phases Exploitation degree；
B, according to strong anisotropism Carbonate Reservoir water injection of horizontal well characteristic of production dynamic, in conjunction with reservoir development feature, combing
Summarize the principal element group affecting each evaluation index；
C, set up strong anisotropism Carbonate Reservoir water injection of horizontal well exploitation journey according to the principal element group of impact evaluation index
Degree evaluation index computation model；
D, in horizontal well production process, according to set up evaluation index computation model, flooding production and regulation and control are carried out to horizontal well.
In described step a, according to the blowing of horizontal well experience, water filling, extract 3 different production phases, to horizontal well not
Evaluated with stage development effectiveness.
In described step a, evaluation method is：Stratum natural energy is relied on according to blowing development period, the waterflooding extraction phase utilizes
Artificial benefit and the principle of energy, in conjunction with zones of different, the horizontal well pair reserves control ability difference of different production phases, definition is commented
Valency horizontal well pair history produce in reserves, remaining reserves, following produce in reserves control ability evaluation index group.
In described step b, it is analyzed according to horizontal well different phase characteristic of production dynamic, special in conjunction with reservoir development
Point, selects the geology larger on evaluation index impact, manufacturing parameter composition principal element group.
Described principal element group includes history reserves exploitation index, remaining reserves employ index, index of potential productivity, water filling
Demand index and extract index of potential productivity.
In described step c, according to the major influence factors group of screening, using weighting, zero dimension mathematical method, set up strong
Anisotropism Carbonate Reservoir horizontal well development degree evaluation index computation model.
The model of described foundation is as follows：
History reserves exploitation index=oil well place construction location × 0.15+ brings in the time × 0.15+ oil well tire out oil production ×
0.1+ oil well average daily oil productive capacity intensity of variation × 0.1+ oil well reserves are worn by perimeter well development degree × 0.25+ oil well well track
More high permeability zone relative position relation and length × 0.25；
Remaining reserves employ index=(oil well geological model reserves/oil well tires out oil production) × edge position oil well reserves correction factor；
Index of potential productivity=history reserves exploitation index × remaining reserves employ index；
Water filling demand index=(the oil well initial stage Liquid output/current Liquid output of oil well) × accumulative injection-production ratio correction factor；
Extract index of potential productivity=index of potential productivity × 0.6+ (1- (1/ (water filling demand index × well well track with hypertonic
Permeable layers position relationship correction factor))) × 0.4.
In described step d, in horizontal well production process, by the computation model of each principal element group, by actual production
Data, well track data and geologic data substitute into and calculate, and obtain the development ability index of horizontal well different development phases, according to opening
Send out capacity index and evaluate development effectiveness, strong anisotropism Carbonate Reservoir horizontal well is produced and regulation and control.
Using it is an advantage of the current invention that：
First, the present invention, based on strong anisotropism Carbonate Reservoir reservoir conditions, water injection of horizontal well characteristic of production dynamic, builds
The evaluation methodology of vertical energy quantification strong anisotropism Carbonate Reservoir horizontal well different injection production phase development effectiveness, effectively
Solve the difficult problem that strong anisotropism Carbonate Reservoir horizontal well future flooding production potentiality are difficult to quantitative assessment, be individual well water filling
The determination of Optimizing manufacture strategy or measure provides theoretical foundation, realizes strong anisotropism Carbonate Reservoir horizontal well individual well is noted
Water Optimizing manufacture.
2nd, the present invention considers the strong anisotropism of strong anisotropism Carbonate Reservoir reservoir, complicated production history, well
All reserves exploitation situations, Horizontal Well track and the factors such as high permeability zone position relationship, and by these factor quantification, by adding
Power, the mathematical method such as zero dimension, set up accurate water injection of horizontal well development response evaluation index method.
3rd, the present invention obtains strong anisotropism Carbonate Reservoir water using water injection of horizontal well development response evaluation index method
The method of horizontal well different development phases development effectiveness belongs to horizontal well and produces analysis method innovation, is in strong anisotropism carbonic acid at present
Reservoir horizontal well individual well waterflooding extraction influence factor is more, under conditions of flooding production ability is difficult to quantitative assessment, according to exploitation for rock salt
Capacity index evaluates development effectiveness, thus realizing strong anisotropism Carbonate Reservoir horizontal well is become more meticulous difference production and regulation and control.
4th, the present invention also has：1st, real-time, this method is with strong anisotropism Carbonate Reservoir horizontal well different injection
Based on development phase feature, thus can each production phase achieve horizontal well become more meticulous differentiation water filling regulation and control；2nd, low one-tenth
This, this method be mathematical method, need not any experimental analysiss extra charge；3rd, easy to operate, once setting up strong anisotropism
Carbonate Reservoir horizontal well development degree evaluation index computation model, can get each life of horizontal well by conventional software computing
Product stage Exploitation degree index amount, simple to operate；4th, accuracy is higher, and this method is according to strong anisotropism Carbonate Reservoir water
Horizontal well actual waterflooding extraction feature obtains, and than former empirical method, accuracy is higher.
To sum up, the present invention can be widely applicable to strong anisotropism Carbonate Reservoir water injection of horizontal well exploitation.
Specific embodiment
Embodiment 1
A kind of strong heterogeneous carbonate reservoir horizontal well individual well flooding production Assessment Method on Potential it is characterised in that include as
Lower step：
A, according to strong anisotropism Carbonate Reservoir horizontal well different injection development phase feature, strong anisotropism is evaluated in definition
Carbonate Reservoir horizontal well is in the evaluation index group of different development phases Exploitation degree；
B, according to strong anisotropism Carbonate Reservoir water injection of horizontal well characteristic of production dynamic, in conjunction with reservoir development feature, combing
Summarize the principal element group affecting each evaluation index；
C, set up strong anisotropism Carbonate Reservoir water injection of horizontal well exploitation journey according to the principal element group of impact evaluation index
Degree evaluation index computation model；
D, in horizontal well production process, according to set up evaluation index computation model, flooding production and regulation and control are carried out to horizontal well.
In described step a, according to the blowing of horizontal well experience, water filling, extract 3 different production phases, to horizontal well not
Evaluated with stage development effectiveness.
In described step a, evaluation method is：Stratum natural energy is relied on according to blowing development period, the waterflooding extraction phase utilizes
Artificial benefit and the principle of energy, in conjunction with zones of different, the horizontal well pair reserves control ability difference of different production phases, definition is commented
Valency horizontal well pair history produce in reserves, remaining reserves, following produce in reserves control ability evaluation index group.
In described step b, it is analyzed according to horizontal well different phase characteristic of production dynamic, special in conjunction with reservoir development
Point, selects the geology larger on evaluation index impact, manufacturing parameter composition principal element group.
Described principal element group is history reserves exploitation index respectively（Characterize reserves in production history for the oil well and control energy
Power）, remaining reserves employ index（Characterize oil well region remaining reserves potentiality）, index of potential productivity（Characterize oil well future
Reserves control ability in production）, water filling demand index（Characterize the desirability to water filling for the oil well current renwing stratum energy）、
Extract index of potential productivity（Characterize individual well and improve oil mass hoisting power after liquid measure produces）.
In described step c, according to the major influence factors group of screening, using weighting, zero dimension mathematical method, set up strong
Anisotropism Carbonate Reservoir horizontal well development degree evaluation index computation model.
The computation model set up is as follows
1）History reserves exploitation index is mainly calculated by 6 individual well indexs
History reserves exploitation index=oil well place construction location × 0.15+ brings in the time × 0.15+ oil well tire out oil production ×
0.1+ oil well average daily oil productive capacity intensity of variation × 0.1+ oil well reserves are worn by perimeter well development degree × 0.25+ oil well well track
More high permeability zone relative position relation and length × 0.25.
2）Remaining reserves are employed index and are mainly calculated by 3 individual well indexs
Remaining reserves employ index=(oil well geological model reserves/oil well tires out oil production) × edge position oil well reserves correction factor.
3）Index of potential productivity=history reserves exploitation index × remaining reserves employ index.
4）Water filling demand index is mainly calculated by 3 individual well indexs
Water filling demand index=(the oil well initial stage Liquid output/current Liquid output of oil well) × accumulative injection-production ratio correction factor.
5）Extract index of potential productivity
Extract index of potential productivity=index of potential productivity × 0.6+ (1- (1/ (water filling demand index × well well track with hypertonic
Permeable layers position relationship correction factor))) × 0.4.
In described step d, in horizontal well production process, by actual production data, well track data and geologic data etc.
Data substitutes into influence factor's group and is calculated, and obtains the development ability index of horizontal well different development phases, according to development ability
Metrics evaluation development effectiveness, produces and regulation and control to strong anisotropism Carbonate Reservoir horizontal well.
Embodiment 2
The present invention based on anisotropism Carbonate Reservoir geologic reservoir condition, water injection of horizontal well characteristic of production dynamic, root
According to horizontal well in waterflooding extraction life cycle the diversity to reserves control ability for the different phase, definition evaluate water injection of horizontal well
The evaluation index group of Exploitation degree, sets up energy according to the principal element group of impact evaluation index using weighting, zero dimension method
The computation model of quantification strong anisotropism Carbonate Reservoir horizontal well different injection development phase Exploitation degree, realizes to water
Horizontal well becomes more meticulous, the water filling of differentiation regulation and control, optimal water injection effect.
Subordinate list 1 is being applied to of the actual Instructing manufacture institution adjustment that the present invention develops well group in certain oil-field flooding region
Fruit table.Drawn certain water injection of horizontal well develop oil fields the water filling region well group stage produce adjustment suggestion.
Claims (8)
1. a kind of strong heterogeneous carbonate reservoir horizontal well individual well flooding production Assessment Method on Potential is it is characterised in that include
Following steps：
A, according to strong anisotropism Carbonate Reservoir horizontal well different injection development phase feature, strong anisotropism is evaluated in definition
Carbonate Reservoir horizontal well is in the evaluation index group of different development phases Exploitation degree；
B, according to strong anisotropism Carbonate Reservoir water injection of horizontal well characteristic of production dynamic, in conjunction with reservoir development feature, combing
Summarize the principal element group affecting each evaluation index；
C, set up strong anisotropism Carbonate Reservoir water injection of horizontal well exploitation journey according to the principal element group of impact evaluation index
Degree evaluation index computation model；
D, in horizontal well production process, according to set up evaluation index computation model, flooding production and tune are carried out to horizontal well
Control.
2. strong heterogeneous carbonate reservoir horizontal well individual well flooding production Assessment Method on Potential according to claim 1,
It is characterized in that：In described step a, according to the blowing of horizontal well experience, water filling, extract 3 different production phases, to horizontal well
Different phase development effectiveness is evaluated.
3. strong heterogeneous carbonate reservoir horizontal well individual well flooding production Assessment Method on Potential according to claim 2,
It is characterized in that：In described step a, evaluation method is：Stratum natural energy, waterflooding extraction phase profit are relied on according to blowing development period
With the principle of artificial benefit and energy, in conjunction with zones of different, the horizontal well pair reserves control ability difference of different production phases, definition
Evaluate reserves during horizontal well pair history produces, remaining reserves, following produce in reserves control ability evaluation index group.
4. strong heterogeneous carbonate reservoir horizontal well individual well flooding production Assessment Method on Potential according to claim 3,
It is characterized in that：In described step b, it is analyzed according to horizontal well different phase characteristic of production dynamic, in conjunction with reservoir development
Feature, selects the geology larger on evaluation index impact, manufacturing parameter composition principal element group.
5. strong heterogeneous carbonate reservoir horizontal well individual well flooding production Assessment Method on Potential according to claim 4,
It is characterized in that：Described principal element group includes history reserves exploitation index, remaining reserves employ index, index of potential productivity,
Water filling demand index and extract index of potential productivity.
6. strong heterogeneous carbonate reservoir horizontal well individual well flooding production Assessment Method on Potential according to claim 5,
It is characterized in that：In described step c, according to the major influence factors group of screening, using weighting, zero dimension mathematical method, build
Found strong anisotropism Carbonate Reservoir horizontal well development degree evaluation index computation model.
7. strong heterogeneous carbonate reservoir horizontal well individual well flooding production Assessment Method on Potential according to claim 6,
It is characterized in that：The model of described foundation is as follows：
History reserves exploitation index=oil well place construction location × 0.15+ brings in the time × 0.15+ oil well tire out oil production ×
0.1+ oil well average daily oil productive capacity intensity of variation × 0.1+ oil well reserves are worn by perimeter well development degree × 0.25+ oil well well track
More high permeability zone relative position relation and length × 0.25；
Remaining reserves employ index=(oil well geological model reserves/oil well tires out oil production) × edge position oil well reserves correction factor；
Index of potential productivity=history reserves exploitation index × remaining reserves employ index；
Water filling demand index=(the oil well initial stage Liquid output/current Liquid output of oil well) × accumulative injection-production ratio correction factor；
Extract index of potential productivity=index of potential productivity × 0.6+ (1- (1/ (water filling demand index × well well track with hypertonic
Permeable layers position relationship correction factor))) × 0.4.
8. strong heterogeneous carbonate reservoir horizontal well individual well flooding production Assessment Method on Potential according to claim 7,
It is characterized in that：In described step d, in horizontal well production process, by the computation model of each principal element group, will be actual raw
Produce data, well track data and geologic data and substitute into calculating, obtain the development ability index of horizontal well different development phases, according to
Development ability metrics evaluation development effectiveness, produces and regulation and control to strong anisotropism Carbonate Reservoir horizontal well.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366529A (en) * | 2017-06-28 | 2017-11-21 | 中国石油化工股份有限公司 | Heterogeneous water-drive pool Dimensionless liquid production index curve characterizing method |
| CN107832900A (en) * | 2017-05-09 | 2018-03-23 | 中国石油化工股份有限公司 | Sandy conglomerate bodies Evaluation of Affusion Effect method |
| CN108518219A (en) * | 2018-03-29 | 2018-09-11 | 中国石油大港油田勘探开发研究院 | It is a kind of that the evaluation method of well is selected based on the natural energy scale extract that develops oil fields |
| CN110080743A (en) * | 2018-01-24 | 2019-08-02 | 中国石油天然气股份有限公司 | Oil well potentiality detection method |
| CN110761755A (en) * | 2019-09-25 | 2020-02-07 | 中国石油天然气股份有限公司 | Low-permeability oilfield water flooding development effect evaluation method |
| CN112502677A (en) * | 2020-12-14 | 2021-03-16 | 西南石油大学 | Water injection development effect evaluation method based on multiple linear regression |
| CN114810006A (en) * | 2021-01-27 | 2022-07-29 | 中国石油化工股份有限公司 | Potential evaluation method for regulating and controlling high-water-consumption zone by separate-layer water injection after heterogeneous flooding |
| CN114810006B (en) * | 2021-01-27 | 2024-05-31 | 中国石油化工股份有限公司 | Heterogeneous flooding post-treatment separate layer water injection regulation and control high water consumption layer potential evaluation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107832900A (en) * | 2017-05-09 | 2018-03-23 | 中国石油化工股份有限公司 | Sandy conglomerate bodies Evaluation of Affusion Effect method |
| CN107366529A (en) * | 2017-06-28 | 2017-11-21 | 中国石油化工股份有限公司 | Heterogeneous water-drive pool Dimensionless liquid production index curve characterizing method |
| CN110080743A (en) * | 2018-01-24 | 2019-08-02 | 中国石油天然气股份有限公司 | Oil well potentiality detection method |
| CN108518219A (en) * | 2018-03-29 | 2018-09-11 | 中国石油大港油田勘探开发研究院 | It is a kind of that the evaluation method of well is selected based on the natural energy scale extract that develops oil fields |
| CN108518219B (en) * | 2018-03-29 | 2021-08-31 | 中国石油天然气股份有限公司 | Evaluation method for oil field scale extract well selection based on natural energy development |
| CN110761755A (en) * | 2019-09-25 | 2020-02-07 | 中国石油天然气股份有限公司 | Low-permeability oilfield water flooding development effect evaluation method |
| CN110761755B (en) * | 2019-09-25 | 2021-11-02 | 中国石油天然气股份有限公司 | Low-permeability oilfield water flooding development effect evaluation method |
| CN112502677A (en) * | 2020-12-14 | 2021-03-16 | 西南石油大学 | Water injection development effect evaluation method based on multiple linear regression |
| CN114810006A (en) * | 2021-01-27 | 2022-07-29 | 中国石油化工股份有限公司 | Potential evaluation method for regulating and controlling high-water-consumption zone by separate-layer water injection after heterogeneous flooding |
| CN114810006B (en) * | 2021-01-27 | 2024-05-31 | 中国石油化工股份有限公司 | Heterogeneous flooding post-treatment separate layer water injection regulation and control high water consumption layer potential evaluation method |
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Application publication date: 20170208 |