CN107869334A - Multilayer sandstone oil reservoir is in the series of strata restructuring of middle-late waterflooding stage and recovery method - Google Patents
Multilayer sandstone oil reservoir is in the series of strata restructuring of middle-late waterflooding stage and recovery method Download PDFInfo
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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
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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
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Abstract
The invention provides a kind of multilayer sandstone oil reservoir in the series of strata restructuring of middle-late waterflooding stage and recovery method.It includes：Multilayer sandstone oil reservoir in middle-late waterflooding stage is reconfigured as three sets of straticulate explorations, wherein, percent continuity is more than 80%, moisture content is less than 20%, and recovery percent of reserves is less than 10%, and oil reservoir of the pressure coefficient more than 0.8 is combined as first set straticulate exploration；It is 60% 80% by percent continuity, moisture content is 20% 60%, and recovery percent of reserves is 10% 15%, and the oil reservoir that pressure coefficient is 0.6 0.8 is combined as second set of straticulate exploration；Percent continuity is less than 60%, moisture content is more than 60%, and recovery percent of reserves is more than 15%, and oil reservoir of the pressure coefficient less than 0.6 is combined as the 3rd set of straticulate exploration；Above-mentioned each set straticulate exploration is exploited.Technical scheme provided by the invention realizes effectively employing for the extremely unbalanced multilayer sandstone oil reservoir of each layer development degree of middle-late waterflooding stage, improves the water flooding effectiveness of such oil reservoir.
Description
Technical field
The present invention relates to a kind of multilayer sandstone oil reservoir middle-late waterflooding stage series of strata restructuring and recovery method, belong to oil
Field development technique field.
Background technology
The land water-drive pool in China based on non-homogeneous multi-layer sandstone oil reservoir, such oil reservoir typically have containing well section it is long,
Substratum is more, vertically and horizontally upper the characteristics of physical property changes greatly, anisotropism is serious, and use straight well cage most of oil field initial stages
System note is adopted or the mining type of traditional batch system exploitation, causes interlayer contradiction to protrude, and reservoir development degree is poor, and injection water monolayer is dashed forward
Enter, well water rises comparatively fast, seriously constrains the constantly improve of Exploitation Level of Oilfield.
At present, such oil reservoir of most domestic comes into High water cut or ultra-high water cut stage, Extra-high-water-cut stage storage
Significant change occurs for layer property, while deposits that remaining oil high degree of dispersion, flooding pattern degree of perfection in the plane be low, reserves control journey
The problems such as degree is poor, and each layer employs big difference, serious interlayer interference on longitudinal direction.
Traditional straticulate exploration division is usually what is divided according to the mean parameter and sedimentary characteristic of reservoir,
Consider dynamic parameter change, it may be said that be in more general meaning a series of strata division, it is unsuitable this when
The exploitation of such oil reservoir of phase.
Therefore it provides a kind of multilayer sandstone oil reservoir middle-late waterflooding stage series of strata restructuring and recovery method, with solve
The interlayer contradiction problem of getting worse turns into one of this area technical problem urgently to be resolved hurrily.
The content of the invention
In order to solve the above technical problems, object of the present invention is to provide a kind of multilayer sandstone oil reservoir in waterflooding extraction
The series of strata restructuring in later stage and recovery method, this method are able to ensure that reservoir physical property parameter and exploitation journey in every suit straticulate exploration
Degree as close possible to, reduce interlayer difference, slow down interlayer contradiction, realize different all kinds of oil reservoirs of series of strata effectively employ.
To reach above-mentioned purpose, the invention provides a kind of series of strata of multilayer sandstone oil reservoir in middle-late waterflooding stage to recombinate
And recovery method, it comprises the following steps：
Multilayer sandstone oil reservoir in middle-late waterflooding stage is reconfigured as three sets of straticulate explorations, wherein,
Percent continuity is more than 80%, moisture content is less than 20%, and recovery percent of reserves is less than 10%, and pressure coefficient is more than 0.8
Oil reservoir is combined as first set straticulate exploration；I.e. the combination of first set straticulate exploration needs to meet following condition simultaneously：First set is opened
The percent continuity for sending out each oil reservoir in series of strata is more than 80%, and moisture content is less than 20%, and recovery percent of reserves is less than 10%, and pressure coefficient is more than
0.8；
It is 60%-80%, moisture content 20%-60%, recovery percent of reserves 10%-15% by percent continuity, pressure coefficient
Second set of straticulate exploration is combined as 0.6-0.8 oil reservoir；The combination of i.e. second set straticulate exploration needs to meet following bar simultaneously
Part：The percent continuity of each oil reservoir is 60%-80% in second set of straticulate exploration, moisture content 20%-60%, and recovery percent of reserves is
10%-15%, pressure coefficient 0.6-0.8；
Percent continuity is less than 60%, moisture content is more than 60%, and recovery percent of reserves is more than 15%, and pressure coefficient is less than 0.6
Oil reservoir is combined as the 3rd set of straticulate exploration；The combination of i.e. the 3rd set straticulate exploration needs to meet following condition simultaneously：3rd set is opened
The percent continuity for sending out each oil reservoir in series of strata is less than 60%, and moisture content is more than 60%, and recovery percent of reserves is more than 15%, and pressure coefficient is less than
0.6；
Above-mentioned each set straticulate exploration is exploited by way of perforation is taken in segmentation using straight well flooding pattern.
Multilayer sandstone oil reservoir occupies sizable ratio in land water-drive pool at home, and such oil reservoir typically contains well section
Long, oil reservoir is more, and oil water relation is complicated, and reservoir heterogeneity is serious, and interlayer physical difference is big, and Partial Block permeability grade is even
Up to tens of thousands of times, the traditional for a long time exploitation of layering system or the exploitation of general straight well, gradually expose perforated hole segment length, layer
Between employ the problems such as difference is big, multilayer High water cut is serious, bring very big problem to development behavior adjustment, limit such oil
The whole development effect of Tibetan.Technical scheme provided by the invention specify that the relevant parameters such as sound state when series of strata reconfigure
Technical limitses, multilayer sandstone oil reservoir is reconfigured as more set straticulate explorations, it can be ensured that the oil reservoir in every suit straticulate exploration
Physical parameter and recovery percent are as close possible to reducing interlayer difference, slow down interlayer contradiction, realize different all kinds of oil reservoirs of series of strata
Effectively employ, efficiently solve a series of exploitation problems that such oil reservoir uses traditional development scheme to face, improve such oil
The water flooding effectiveness of Tibetan.
In the above-mentioned methods, it is preferable that respectively covered to above-mentioned by way of perforation is taken in segmentation using straight well flooding pattern
When straticulate exploration is exploited, including procedure below：
Straight well flooding pattern is disposed, the injection-production well in the straight well flooding pattern is straight well；
Above-mentioned each set straticulate exploration is exploited by the way of perforation is taken in segmentation.
The different series of strata of exploitation are taken over by the way of perforation is taken in straight well segmentation, under current low oil price form, are effectively saved
About drilling well investment, while also ensure that same set of well pattern individual well residual recoverable reserves reaches economic requirement, bring pole
Big economic benefit.
In the above-mentioned methods, it is preferable that the straight well flooding pattern is five-spot flooding pattern, is adopted in five-spot note
It is flatly water filling straight well in well pattern, remaining four mouthfuls are oil recovery straight well.
In the above-mentioned methods, it is preferable that the water filling straight well to the distance of each oil recovery straight well is 150-250m, more excellent
Elect 200m as.
In the above-mentioned methods, it is preferable that in the five-spot flooding pattern, four mouthfuls of oil recovery straight wells form quadrangle, institute
State the inside that water filling straight well is located at the quadrangle.
In the above-mentioned methods, it is preferable that in the five-spot flooding pattern, four mouthfuls of oil recovery straight wells form square, institute
State the center that water filling straight well is located at the square interior.
In the above-mentioned methods, it is preferable that the square length of side is 210-360m, more preferably 280m.Using this hair
The problem of well pattern structure of bright offer can effectively avoid straight well from developing easy water breakthrough, improve control journey of the flooding pattern to oil reservoir
Degree.
In the above-mentioned methods, it is preferable that the water filling straight well and the oil recovery straight well are provided with and every suit straticulate exploration
Corresponding perforated interval；By taking water filling straight well as an example, it is in first set straticulate exploration, second set of straticulate exploration, the 3rd set of development layer
It is that place is respectively equipped with perforated interval.
In the above-mentioned methods, it is preferable that respectively covered to above-mentioned by way of perforation is taken in segmentation using straight well flooding pattern
Straticulate exploration, which carries out exploitation, includes procedure below：
The first set straticulate exploration is first penetrated out using straight well flooding pattern, completes to open the first set straticulate exploration
Adopt, then penetrate out second set of straticulate exploration, complete the exploitation to second set of straticulate exploration, finally penetrate out the described 3rd
Straticulate exploration is covered, completes the exploitation to the 3rd set of straticulate exploration.Exploited by the way of perforation is taken in straight well segmentation
The corresponding note for realizing different series of strata is adopted, and expands the swept volume of injected media, employs all kinds of oil reservoirs to greatest extent, fully
Play the potentiality of oil reservoir.
In a detailed embodiment, this method includes：
Multilayer sandstone oil reservoir in middle-late waterflooding stage is reconfigured as three sets of straticulate explorations, wherein,
Percent continuity is more than 80%, moisture content is less than 20%, and recovery percent of reserves is less than 10%, and pressure coefficient is more than 0.8
Oil reservoir is combined as first set straticulate exploration；
It is 60%-80%, moisture content 20%-60%, recovery percent of reserves 10%-15% by percent continuity, pressure coefficient
Second set of straticulate exploration is combined as 0.6-0.8 oil reservoir；
Percent continuity is less than 60%, moisture content is more than 60%, and recovery percent of reserves is more than 15%, and pressure coefficient is less than 0.6
Oil reservoir is combined as the 3rd set of straticulate exploration；
Straight well flooding pattern is disposed, the straight well flooding pattern is disposed according to the structure of five-spot flooding pattern
's；It is flatly water filling straight well in the five-spot flooding pattern, remaining four mouthfuls are oil recovery straight well, the water filling straight well and institute
State and the perforated interval corresponding with every suit straticulate exploration is equipped with oil recovery straight well；
Three sets of straticulate explorations of restructuring are exploited successively by the way of perforation is taken in straight well segmentation, recovery process is such as
Under：
The perforated interval being located at using water filling straight well and oil recovery straight well at first set straticulate exploration penetrates out first set straticulate exploration,
Then the perforated interval that the oil recovery straight well is located at first set straticulate exploration is switched into oil recovery section, water filling straight well is opened positioned at first set
Perforated interval at hair series of strata switchs to water filling section, and the first set straticulate exploration is exploited；
After the exploitation of first set straticulate exploration terminates, using water filling straight well and oil recovery straight well at second set of straticulate exploration
Perforated interval penetrates out second set of straticulate exploration, then switchs to adopt by perforated interval of the oil recovery straight well at second set of straticulate exploration
Oily section, perforated interval of the water filling straight well at second set of straticulate exploration switch to water filling section, second set of straticulate exploration are carried out
Exploitation；
After second set of straticulate exploration exploitation terminates, using water filling straight well and oil recovery straight well at the 3rd set of straticulate exploration
Perforated interval penetrates out the 3rd set of straticulate exploration, then switchs to adopt by perforated interval of the oil recovery straight well at the 3rd set of straticulate exploration
Oily section, perforated interval of the water filling straight well at the 3rd set of straticulate exploration switch to water filling section, the 3rd set of straticulate exploration are carried out
Exploitation.
Beneficial effects of the present invention：
Technical scheme provided by the invention specify that the group again of the multilayer sandstone oil reservoir series of strata in middle-late waterflooding stage
The technical limitses of the relevant parameters such as sound state during conjunction, multilayer sandstone oil reservoir is divided into three sets of straticulate explorations, optimized simultaneously
The structure and injection-production method of flooding pattern, it can be ensured that reservoir physical property parameter and recovery percent in every suit straticulate exploration to the greatest extent may be used
Can be close, interlayer difference is reduced, slows down interlayer contradiction, effectively employing for different all kinds of oil reservoirs of series of strata is realized, efficiently solves this
Class oil reservoir uses a series of exploitation problems that traditional development scheme faces, and improves the water flooding effectiveness of such oil reservoir.
Brief description of the drawings
Fig. 1 is the arrangement signal of more set straticulate explorations and flooding pattern structure provided in an embodiment of the present invention in oil reservoir
Figure；
Fig. 2 is the structural representation of straight well flooding pattern provided in an embodiment of the present invention；
Fig. 3 is the recovery percent of reserves comparison diagram of technical scheme provided in an embodiment of the present invention and prior art；
Fig. 4 is the water drive reserves controlling extent comparison diagram of technical scheme provided in an embodiment of the present invention and prior art；
Fig. 5 is the water drive reserves development degree comparison diagram of technical scheme provided in an embodiment of the present invention and prior art；
Main Reference label declaration：
Ith, II and III straticulate exploration is represented；1：Water filling straight well；11：Perforated interval of the water filling straight well 1 at straticulate exploration I；
12：Perforated interval of the water filling straight well 1 at straticulate exploration II；13：Perforated interval of the water filling straight well 1 at straticulate exploration III；21、22、
23 and 24 represent oil recovery straight well；211：Perforated interval of the oil recovery straight well 21 at straticulate exploration I；212：Oil recovery straight well 21 is being developed
Perforated interval at series of strata II；213：Perforated interval of the oil recovery straight well 21 at straticulate exploration III；221：Oil recovery straight well 22 is in development layer
It is the perforated interval at I；222：Perforated interval of the oil recovery straight well 22 at straticulate exploration II；223：Oil recovery straight well 22 is in straticulate exploration
Perforated interval at III.
Embodiment
In order to which technical characteristic, purpose and the beneficial effect of the present invention is more clearly understood, now to the skill of the present invention
Art scheme carry out it is described further below, but it is not intended that to the present invention can practical range restriction.
Embodiment
Present embodiments provide a kind of multilayer sandstone oil reservoir middle-late waterflooding stage series of strata restructuring and recovery method, should
Method mainly includes the following steps that：
Multilayer sandstone oil reservoir in middle-late waterflooding stage is reconfigured as three sets of straticulate explorations, wherein,
Percent continuity is more than 80%, moisture content is less than 20%, and recovery percent of reserves is less than 10%, and pressure coefficient is more than 0.8
Oil reservoir is combined as first set straticulate exploration I；
It is 60%-80%, moisture content 20%-60%, recovery percent of reserves 10%-15% by percent continuity, pressure coefficient
Second set of straticulate exploration II is combined as 0.6-0.8 oil reservoir；
Percent continuity is less than 60%, moisture content is more than 60%, and recovery percent of reserves is more than 15%, and pressure coefficient is less than 0.6
Oil reservoir is combined as the 3rd set of straticulate exploration III；
Five-spot flooding pattern (as depicted in figs. 1 and 2, wherein Fig. 1 is cut away views of the Fig. 2 along line A-A) is disposed, in well pattern
Injection-production well be straight well, wherein be flatly water filling straight well, be designated as water filling straight well 1, four mouthfuls of remainder is oil recovery straight well, is designated as respectively
Oil recovery straight well 21, oil recovery straight well 22, oil recovery straight well 23 and oil recovery straight well 24, this four mouthfuls of oil recovery straight wells form square, such as Fig. 2 institutes
Show, the distance of adjacent two mouthfuls of oil recovery straight wells is 280m, and water filling straight well is located at the center of square interior；
The perforated interval (as shown in Figure 1) corresponding with often covering straticulate exploration is equipped with water filling straight well and oil recovery straight well, with
Exemplified by water filling straight well 1, it is provided with perforated interval 11 at straticulate exploration I, and it is provided with perforated interval 12 at straticulate exploration II, and it is being opened
Perforated interval 13 is provided with hair series of strata III；Remaining four mouthfuls of oil recovery straight well is also that (oil recovery straight well 21 is provided with perforation at straticulate exploration I
Section 211, is provided with perforated interval 212 at straticulate exploration II；Perforated interval 213 is provided with straticulate exploration III；Oil recovery straight well 22 is being opened
Perforated interval 221 is provided with hair series of strata I, perforated interval 222 is provided with straticulate exploration II, perforated interval is provided with straticulate exploration III
223)., can be on the basis of old well net deployment in real process, Jiang Xinjing is combined with Lao Jing, matches injection-production well again
Net.
Three sets of straticulate explorations are exploited successively by the way of perforation is taken in straight well segmentation, recovery process is as follows：
The perforated interval that straticulate exploration I is located at by all straight wells (including water filling straight well and oil recovery straight well) first penetrates out first set
Straticulate exploration I, then, the perforated interval 211 on oil recovery straight well 21 are changed into oil recovery section, and the perforated interval 11 on water filling straight well 1 changes
For water filling section, the perforated interval 221 on oil recovery straight well 22 also transitions into oil recovery section, and the rest may be inferred, and other oil recovery straight wells are also；To institute
First set straticulate exploration I is stated to be exploited；
After the exploitation for completing first set straticulate exploration I, the perforated interval being located at by all straight wells at straticulate exploration II is penetrated
Second set of straticulate exploration II is opened, then, the perforated interval 212 on oil recovery straight well 21 is changed into oil recovery section, the perforation on water filling straight well 1
Section 12 is changed into water filling section, and the perforated interval 222 on oil recovery straight well 22 is changed into oil recovery section, and the rest may be inferred, other oil recovery straight wells
It is；Second set of straticulate exploration II is exploited；
After the exploitation for completing second set of straticulate exploration II, it is located at by all straight wells at the 3rd set of straticulate exploration III
Perforated interval penetrates out the 3rd set of straticulate exploration III, and now, the perforated interval 213 on oil recovery straight well 21 is changed into oil recovery section, water filling straight well
Perforated interval 13 on 1 is changed into water filling section, and the perforated interval 223 on oil recovery straight well 22 is changed into oil recovery section, and the rest may be inferred, other to adopt
Oily straight well is also；Complete the 3rd set of straticulate exploration III exploitation.
As shown in Fig. 3, Fig. 4, Fig. 5, in the case where the simulation of oil reservoir actual parameter calculates, technology provided in an embodiment of the present invention is contrasted
The straight well of scheme and prior art generally notes the development effectiveness adopted, and technical scheme provided in an embodiment of the present invention is than prior art
Final recovery percent of reserves is high by 10.2%, and water drive reserves controlling extent improves 20.3%, and water drive reserves development degree improves 17.6%；Its
In, generally the note technology of adopting refers to all oil reservoirs regardless of series of strata to existing straight well, a set of series of strata of general conduct, using a set of straight
Well well pattern is exploited, and the technology can cause interlayer to be employed and differ greatly, it is impossible to fully employ because interlayer physical difference is larger
Tap the latent power all kinds of oil reservoirs.
The schematical embodiment of the present invention is the foregoing is only, is not limited to the scope of the present invention.It is any
Those skilled in the art, the equivalent variations made on the premise of the design of the present invention and principle is not departed from and modification, all should
Belong to the scope of protection of the invention.And it should be noted that the present invention each part be not limited in above-mentioned entirety should
With, each technical characteristic described in specification of the invention can according to be actually needed selection one individually use or select it is multinomial
Combine use, and therefore, the present invention naturally covers other relevant with this case innovative point and combined and concrete application.
Claims (10)
1. a kind of multilayer sandstone oil reservoir middle-late waterflooding stage series of strata restructuring and recovery method, it comprises the following steps：
Multilayer sandstone oil reservoir in middle-late waterflooding stage is reconfigured as three sets of straticulate explorations, wherein,
Percent continuity is more than 80%, moisture content is less than 20%, and recovery percent of reserves is less than 10%, and pressure coefficient is more than 0.8 oil reservoir
It is combined as first set straticulate exploration；
It is 60%-80%, moisture content 20%-60%, recovery percent of reserves 10%-15% by percent continuity, pressure coefficient is
0.6-0.8 oil reservoir is combined as second set of straticulate exploration；
Percent continuity is less than 60%, moisture content is more than 60%, and recovery percent of reserves is more than 15%, and pressure coefficient is less than 0.6 oil reservoir
It is combined as the 3rd set of straticulate exploration；
Above-mentioned each set straticulate exploration is exploited by way of perforation is taken in segmentation using straight well flooding pattern.
2. according to the method for claim 1, wherein, the injection-production well in the straight well flooding pattern is straight well；It is described straight
Well flooding pattern is five-spot flooding pattern, is flatly water filling straight well in the five-spot flooding pattern, and remaining four mouthfuls are to adopt
Oily straight well.
3. according to the method for claim 2, wherein, the water filling straight well to the distance of each oil recovery straight well is 150-
250m。
4. according to the method in claim 2 or 3, wherein, the distance of the water filling straight well to each oil recovery straight well is
200m。
5. according to the method in claim 2 or 3, wherein, in the five-spot flooding pattern, four mouthfuls of oil recovery straight wells are formed
Quadrangle, the water filling straight well are located at the inside of the quadrangle.
6. according to the method in claim 2 or 3, wherein, in the five-spot flooding pattern, four mouthfuls of oil recovery straight wells are formed
Square, the water filling straight well are located at the center of the square interior.
7. according to the method for claim 6, wherein, the square length of side is 210-360m.
8. the method according to claim 6 or 7, wherein, the square length of side is 280m.
9. according to the method described in claim any one of 2-8, wherein, the water filling straight well and the oil recovery straight well be provided with
The corresponding perforated interval of every suit straticulate exploration.
10. according to the method described in claim any one of 1-9, wherein, perforation is taken over by segmentation using straight well flooding pattern
Mode exploitation carried out to above-mentioned each set straticulate exploration include procedure below：
The first set straticulate exploration is first penetrated out using straight well flooding pattern, completes the exploitation to the first set straticulate exploration,
Then second set of straticulate exploration is penetrated out, completes the exploitation to second set of straticulate exploration, finally penetrates out described 3rd set
Straticulate exploration, complete the exploitation to the 3rd set of straticulate exploration.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843286A (en) * | 2018-06-21 | 2018-11-20 | 中国石油大港油田勘探开发研究院 | The technical method of well is selected in a kind of Novel layered oil recovery |
| CN115247551A (en) * | 2021-04-26 | 2022-10-28 | 中国石油天然气股份有限公司 | Method and device for improving recovery ratio of super heavy oil reservoir |
| CN115247551B (en) * | 2021-04-26 | 2024-06-04 | 中国石油天然气股份有限公司 | Method and device for improving recovery ratio of super heavy oil reservoir |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2103486C1 (en) * | 1995-06-30 | 1998-01-27 | Научно-производственное управление Акционерного общества открытого типа "Оренбургнефть" | Method for development of oil deposit |
| CN107025507A (en) * | 2016-01-29 | 2017-08-08 | 中国石油天然气股份有限公司 | Terrestrial facies stratiform sandstone oil reservoir Life cycle develops stratagem synergistic combination method |
| CN107218024A (en) * | 2017-05-02 | 2017-09-29 | 中国石油天然气股份有限公司 | The method of adjustment of multilayer low permeability sandstone reservoir high water-cut stage rhombic inverted nini-spot well pattern |
-
2017
- 2017-10-23 CN CN201710990394.3A patent/CN107869334B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2103486C1 (en) * | 1995-06-30 | 1998-01-27 | Научно-производственное управление Акционерного общества открытого типа "Оренбургнефть" | Method for development of oil deposit |
| CN107025507A (en) * | 2016-01-29 | 2017-08-08 | 中国石油天然气股份有限公司 | Terrestrial facies stratiform sandstone oil reservoir Life cycle develops stratagem synergistic combination method |
| CN107218024A (en) * | 2017-05-02 | 2017-09-29 | 中国石油天然气股份有限公司 | The method of adjustment of multilayer low permeability sandstone reservoir high water-cut stage rhombic inverted nini-spot well pattern |
Non-Patent Citations (2)
| Title |
|---|
| 潘扬庆等: "东辛油田辛10断块油藏开发后期井网部署优化研究", 《化工管理》 * |
| 郎兆新等: "油藏工程基础", 《油藏工程基础》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843286A (en) * | 2018-06-21 | 2018-11-20 | 中国石油大港油田勘探开发研究院 | The technical method of well is selected in a kind of Novel layered oil recovery |
| CN108843286B (en) * | 2018-06-21 | 2021-04-02 | 中国石油天然气股份有限公司 | Technical method for layered oil production well selection |
| CN115247551A (en) * | 2021-04-26 | 2022-10-28 | 中国石油天然气股份有限公司 | Method and device for improving recovery ratio of super heavy oil reservoir |
| CN115247551B (en) * | 2021-04-26 | 2024-06-04 | 中国石油天然气股份有限公司 | Method and device for improving recovery ratio of super heavy oil reservoir |
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