CN105822270A - Method for governing large pore paths of oil deposit through oil-water well type transformation - Google Patents
Method for governing large pore paths of oil deposit through oil-water well type transformation Download PDFInfo
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Abstract
The invention provides a method for governing large pore paths of an oil deposit through oil-water well type transformation. The method comprises the following steps: firstly, performing fine oil deposit geologic feature research, and performing classified description on the large pore paths; secondly, performing analysis of development effect influence factors, including pressure and perforation influence; thirdly, performing fine description of a geologic non-seepage interlayer; fourthly, designing a variable flow line well pattern adjustment scheme according to the fine description of the geologic non-seepage interlayer, performing layered water flooding recovery on continuous distribution areas of the non-seepage interlayer, and transforming the oil-water well type for the non-seepage interlayer; fifthly, performing index predication through a numerical modeling technology, and selecting an optimal plan. The method is high in practicability, can economically and effectively improve the recovery efficiency of the oil deposit, and greatly increases accumulated oil production of old oil fields.
Description
Technical field
The present invention relates to oil field development technical field, especially relate to a kind of method utilizing oil-water well not change improvement oil reservoir macropore.
Background technology
Macropore oil reservoir is due to its Geologic Structure Feature, and seepage channel advantage is relatively big, and non-available water circulation is serious, causes waterflooding effect poor.On the basis of high infiltration strip describes, improve former flooding pattern, carry out stifled tune and the efficiently displacement of reservoir oil, cannot attain the results expected, adjustment difficulty is big, improves recovery ratio further the most difficult, Well pattern edjustment to be strengthened under the conditions of existing well pattern, must flow direction change, with improve swept volume reach improve recovery ratio purpose.We have invented a kind of new oil-water well that utilizes for this and do not change the method administering oil reservoir macropore, solve above technical problem.
Summary of the invention
It is an object of the invention to provide one and there is good practicality and effect, it is possible to be effectively improved the recovery ratio of macropore oil reservoir, the most significantly improved the unsteady flow line method of adjustment of macropore effect of reservoir development by conversion oil-water well.
The purpose of the present invention can be achieved by the following technical measures: utilizes oil-water well not change the method administering oil reservoir macropore, this method utilizing oil-water well not change improvement oil reservoir macropore includes: step 1, carry out fine reservoir geologic character research, macropore is carried out classified description；Step 2, develops influential effect factorial analysis, including pressure and the impact of perforation；Step 3, carries out the fine description of geology not seepage flow interlayer；Step 4, according to the fine description of geology not permeable stream interlayer, designs unsteady flow line Well pattern edjustment scheme, carries out demixing injection-production for not seepage flow interlayer areal area in flakes, and for not seepage flow interlayer district the most in flakes, conversion oil-water well is other；Step 5, application numerical simulation technology carries out index prediction, chooses the best alternatives.
The purpose of the present invention realizes also by following technical measures:
In step 1, the fine reservoir geologic character research carried out includes Strata Comparison, structure, reservoir, sedimentary facies, oil-water system, warm-pressing system；Study in conjunction with fine reservoir geologic character, macropore is carried out classified description.
In step 2, on the basis of fine geological study, by injection well pressure change is tracked, in conjunction with the classification of macropore, analyze and inject the oil pressure of well, day water filling and apparent water injectivity index situation of change；Change dynamic to producing well is tracked, and analyzes producing well and takes effect situation, is analyzed the impact of development effectiveness in combination with optimizing perforation.
In step 3, utilizing well-log information to carry out stratum rhythm section subdivision and correlation, the electrical standard of lithology and the electrical physical property standard of application interlayer carry out fine description to type and the distribution characteristics of not seepage flow interlayer.
In step 4, for geology not seepage flow interlayer areal area in flakes when designing series of strata subdivision scheme, high infiltration strip top remaining oil of focusing on taping the latent power；For high infiltration strip bottom, significantly extract, strengthening displacement on the basis of wide spacing.
In step 4, during for geology not seepage flow interlayer district the most in flakes design well pattern Adjusted Option, consider that note adopts direction and main stem angular separation, oil well is made to there is not seepage flow interlayer, conversion oil-water well is other simultaneously, and flow direction change injects water intrinsic displacement passage improving ecology development effectiveness by changing, the most significantly extract, strengthens weak driving.
In steps of 5, utilize numerical simulation technology, it was predicted that the ultimate recovery of unsteady flow line scheme, according to improving recovery ratio size, select to implement optimal case.
The present invention relates to macropore oil reservoir unsteady flow line adjust, particularly relate to exist macropore oil reservoir conversion oil-water well other unsteady flow line method of adjustment of geology not seepage flow interlayer.The method includes: carry out fine geological study, and macropore is carried out classified description；Develop influential effect factorial analysis, mainly include the impact of pressure and perforation；Carry out the fine description of geology not seepage flow interlayer；Design unsteady flow line Well pattern edjustment scheme, carries out demixing injection-production for not seepage flow interlayer areal area in flakes, and for not seepage flow interlayer district the most in flakes, conversion oil-water well is other；Application numerical simulation technology carries out index prediction, chooses the best alternatives.The method changes injection water intrinsic displacement passage improving ecology development effectiveness for macropore oil reservoir and has good practicality, it is possible to economical and effective improves such oil recovery, significantly increases the cumulative oil production of old filed.This invention changes thinking, carries out efficient transfer drive, can reach preferable Adjustment effect on the basis of duct closure combines with transformation streamline.
Accompanying drawing explanation
Fig. 1 is that the oil-water well that utilizes of the present invention does not change the flow chart of a specific embodiment of the method administering oil reservoir macropore；
Fig. 2 be the present invention an instantiation in pilot test district high infiltration strip classification schematic diagram；
Fig. 3 be the present invention an instantiation in the hyperbranched closure in pilot test district well water flooding curve；
Fig. 4 be the present invention a specific embodiment in water injection well 32-266 well curve；
Fig. 5 be the present invention a specific embodiment in producing well 25-234 log；
Fig. 6 be the present invention a specific embodiment in 632-41Geology not seepage flow interbed distribution figure；
Fig. 7 be the present invention a specific embodiment in 631-32Geology not seepage flow interbed distribution figure；
Fig. 8 be the present invention a specific embodiment in 641-42Geology not seepage flow interbed distribution figure；
Fig. 9 be the present invention a specific embodiment in the northwestward, trial zone choose well location map；
Figure 10 is that the specific embodiment transfer of the present invention is changed oil well other Well pattern edjustment conceptual design figure；
Figure 11 be the present invention a specific embodiment in constituency, the southeast, trial zone well location map；
Figure 12 be the present invention a specific embodiment in local mesh subdivision unsteady flow line conceptual design figure.
Detailed description of the invention
For making the above and other objects, features and advantages of the present invention to become apparent, cited below particularly go out preferred embodiment, and coordinate shown in accompanying drawing, be described in detail below.
As it is shown in figure 1, the flow chart of a specific embodiment of the macropore oil reservoir conversion oil-water well other unsteady flow line method of adjustment that Fig. 1 is the present invention.The method considers that macropore oil reservoir improves former flooding pattern and carries out stifled tune and do not attain the results expected, it is also contemplated that the existence of geology not seepage flow interlayer.
In step 101. fine reservoir geology research, mainly study Strata Comparison, structure, reservoir, sedimentary facies, oil-water system, warm-pressing system, macropore is carried out classified description.Flow process enters into step 102.
In step 102, on the basis of fine geological study, develop influential effect factorial analysis, mainly include the impact of pressure and perforation.Flow process enters into step 103.
In step 103, mainly utilizing well-log information to carry out stratum rhythm section subdivision and correlation, the electrical standard of lithology and the electrical physical property standard of application interlayer carry out fine description to type and the distribution characteristics of not seepage flow interlayer.Flow process enters into step 104.
In step 104, according to the fine description of geology not permeable stream interlayer, design unsteady flow line Well pattern edjustment scheme.Carrying out demixing injection-production for not seepage flow interlayer areal area in flakes, for not seepage flow interlayer district the most in flakes, conversion oil-water well is other.Flow process enters into step 105.
In step 105, utilize numerical simulation technology, it was predicted that the ultimate recovery at the end of the 15 of each scheme, select to implement optimal case.Flow process terminates.
For making the foregoing of the present invention to become apparent, below by Gu Dong seven district western Ng63+4 IV class oil reservoir is compound stifled drive raising recovery ratio pilot test district as a example by, be described in detail below:
The western Ng6 in Gu Dong seven district3+4Compound stifled the driving of IV class oil reservoir improves recovery ratio pilot test district oil in place 3,660,000 tons, carries out hyperbranched system closure in April, 2011, starts to inject high concentration polymer slug in November, 2011, has accumulated note 0.174PV.Ending on March 8th, 2013, inject well and drive a well 19 mouthfuls, producing well drives a well 26 mouthfuls, average individual well day oil 1.2t/d, comprehensive water cut 98.8%, note 111.5m of average individual well day3/ d, oil pressure 9.25MPa, polymer Injection volume 0.174PV, average polymerization substrate concentration 2500mg/L.At present pressure averagely rises 0.3MPa, and oil well the most substantially takes effect sign.Pilot test, on the basis of high infiltration strip describes, improves former flooding pattern, carries out blocking up and adjusts and the efficiently displacement of reservoir oil, do not attain the results expected, need to change thinking, carries out efficient transfer drive on the basis of duct closure combines with transformation streamline.
1, fine geological study and macropore classified description
Geological research is basis, carries out the research in terms of Strata Comparison, structure, reservoir, sedimentary facies, oil-water system, warm-pressing system geologic feature.As in figure 2 it is shown, macropore is carried out classified description.
2, development effect influence factorial analysis
On the basis of fine geology grinds, develop influential effect factorial analysis, mainly include the impact of pressure and perforation.
By being tracked injection well pressure, high infiltration strip grows region, and pressure of well declines.In 7 mouthful of one class high infiltration strip well, 5 mouthfuls have carried out hyperbranched closure, and after closure, oil pressure rises, but it is short to hold time, and after polymer slug injects, pressure presents downward trend, such as Fig. 3.Two, three class high infiltration strips grow region, and oil pressure rises.After conventional profile control well profile control, pressure averagely rises 1.5MPa, afterwards rapid pressure drop, and after in October, 12, oil pressure rises.Two, the not serious well of three class high infiltration strips " macropore ", oil pressure ascendant trend is obvious, such as Fig. 4.
Change dynamic to producing well is tracked, and oil well does not occurs substantially taking effect sign, and optimize perforation can suggestions for improvement simultaneously.In 30 mouthfuls of oil wells, bottom is kept away and is penetrated by 12 mouthfuls of oil wells, does not keeps away that the 16 mouthfuls of straight wells penetrated are aqueous is all higher than 98.4%, and day, oil was all at below 1t/d.
3, geology not seepage flow interlayer fine description
Mainly utilizing well-log information to carry out stratum rhythm section subdivision and correlation, the electrical standard of lithology and the electrical physical property standard of application interlayer carry out fine description to type and the distribution characteristics of not seepage flow interlayer.
Such as Fig. 5, by rhythm section subdivision and correlation, 63+4Pilot test district target zone is group shop, Neogene System Guantao epimere 6 Sand member 3+4 substratum, and buried depth of strata 1300-1350m, according to 63、64The rhythmic nature of time quantum fluvial deposit, is respectively divided into 2 rhythm sections.
Found by rock Electrical Property Correlation, 632-41Geology not seepage flow interlayer, based on mudstone foundation, is distributed in the form of sheets, and area accounts for 38%, sees Fig. 6.
631-32Not seepage flow interlayer+physical property interlayer, in ribbon, area accounts for 29%.641-42Seepage flow interlayer+physical property interlayer, is not distributed in the form of sheets, and area accounts for 34%, sees Fig. 7 and Fig. 8.
4, unsteady flow line Well pattern edjustment conceptual design and preferably
For geology not seepage flow interlayer areal area in flakes when designing series of strata subdivision scheme, high infiltration strip top remaining oil of focusing on taping the latent power.For high infiltration strip bottom, significantly extract, strengthening displacement on the basis of wide spacing.During for geology not seepage flow interlayer district the most in flakes design well pattern Adjusted Option, consider that note adopts direction and main stem angular separation, major part oil well is made to there is not seepage flow interlayer, conversion oil-water well is other simultaneously, flow direction change, inject water intrinsic displacement passage improving ecology development effectiveness, the most significantly extract by changing, strengthen weak driving.
632-41Interlayer, based on stable muddy intercalation, thickness 0.3-2.4m, is distributed in the form of sheets, and area accounts for 32.9%, is mainly distributed on the southeast, trial zone.
The northwestward, trial zone oil area 0.4km2, see Fig. 9, oil in place 111 × 104T, thickness 19.62m, inject Jing6Kou, producing well 8 mouthfuls, recovery percent of reserves 44.78%, average individual well day oil 1.2t/d, comprehensive water cut 98.8%, note 111m of average individual well day3/ d, oil pressure 9.5MPa, polymer Injection volume 0.174PV.
The northwestward not seepage flow interlayer is in flakes, the most other by conversion oil-water well, and flow direction change injects water intrinsic displacement passage improving ecology development effectiveness, the most significantly extract by changing, strengthens weak driving.It is big (60 degree) with main stem angular separation that design note adopts direction, and major part oil well exists not seepage flow interlayer, sees Figure 10.
5, index prediction and scheme are preferred
Utilize numerical simulation technology, it was predicted that the ultimate recovery at the end of unsteady flow line scheme 15, improve recovery ratio the highest for unsteady flow line+extract scheme, improve recovery ratio 3.14% at the end of program prediction 15, there is preferable economic benefit, for optimum embodiment.
The southeast, trial zone oil area 0.19km2, see Figure 11, oil in place 54 × 104T, thickness 18.23m, inject Jing6Kou, producing well 2 mouthfuls, average individual well day oil 2.15t/d, comprehensive water cut 98.3%, recovery percent of reserves 44.8%, note 117m of average individual well day3/ d, oil pressure 9.2MPa, polymer Injection volume 0.174PV.
Geology not seepage flow interlayer in the southeast, trial zone is distributed in flakes, makes full use of and carries out series of strata segmentation every interlayer, increases well spacing, improves liquid measure, strengthens displacement.Mentality of designing: former 63+4Layer is subdivided into 6 every interlayer in utilizing layer3With 64Layer, 63The former Well Pattern And Spacing of layer, 64Layer well spacing expands 1 times, and for Five-point method pattern, current scheme has completed perforation optimization, to be performed, sees Figure 12.63Layer enhancing displacement, high infiltration strip top remaining oil of taping the latent power, 64Layer is taken out dilute rear well spacing and is put and be twice, significantly extract on the basis of wide spacing, strengthens displacement.
Utilize numerical simulation technology, it was predicted that the ultimate recovery of unsteady flow line Well pattern edjustment scheme, improve recovery ratio the highest for local mesh subdivision+extract scheme, improve recovery ratio 2.6% at the end of program prediction 15, for optimum embodiment.
Claims (7)
1. utilize oil-water well not change the method administering oil reservoir macropore, it is characterised in that this method utilizing oil-water well not change improvement oil reservoir macropore includes
Step 1, carries out fine reservoir geologic character research, macropore is carried out classified description；
Step 2, develops influential effect factorial analysis, including pressure and the impact of perforation；
Step 3, carries out the fine description of geology not seepage flow interlayer；
Step 4, according to the fine description of geology not permeable stream interlayer, designs unsteady flow line Well pattern edjustment scheme, carries out demixing injection-production for not seepage flow interlayer areal area in flakes, and for not seepage flow interlayer district the most in flakes, conversion oil-water well is other；
Step 5, application numerical simulation technology carries out index prediction, chooses the best alternatives.
The method utilizing oil-water well not change improvement oil reservoir macropore the most according to claim 1, it is characterised in that in step 1, the fine reservoir geologic character research carried out includes Strata Comparison, structure, reservoir, sedimentary facies, oil-water system, warm-pressing system；Study in conjunction with fine reservoir geologic character, macropore is carried out classified description.
The method utilizing oil-water well not change improvement oil reservoir macropore the most according to claim 1, it is characterized in that, in step 2, on the basis of fine geological study, by injection well pressure change is tracked, in conjunction with the classification of macropore, analyze and inject the oil pressure of well, day water filling and apparent water injectivity index situation of change；Change dynamic to producing well is tracked, and analyzes producing well and takes effect situation, is analyzed the impact of development effectiveness in combination with optimizing perforation.
The method utilizing oil-water well not change improvement oil reservoir macropore the most according to claim 1, it is characterized in that, in step 3, utilizing well-log information to carry out stratum rhythm section subdivision and correlation, the electrical standard of lithology and the electrical physical property standard of application interlayer carry out fine description to type and the distribution characteristics of not seepage flow interlayer.
The method utilizing oil-water well not change improvement oil reservoir macropore the most according to claim 1, it is characterised in that in step 4, for geology not seepage flow interlayer areal area in flakes when designing series of strata subdivision scheme, high infiltration strip top remaining oil of focusing on taping the latent power；For high infiltration strip bottom, extract on the basis of wide spacing, strengthen displacement.
The method utilizing oil-water well not change improvement oil reservoir macropore the most according to claim 1, it is characterized in that, in step 4, for geology not seepage flow interlayer district the most in flakes design well pattern Adjusted Option time, it is considered to note adopts direction and main stem angular separation, oil well is made to there is not seepage flow interlayer, conversion oil-water well is other simultaneously, and flow direction change injects water intrinsic displacement passage improving ecology development effectiveness by changing, extract on this basis, strengthens weak driving.
The method utilizing oil-water well not change improvement oil reservoir macropore the most according to claim 1, it is characterised in that in steps of 5, utilize numerical simulation technology, it was predicted that the ultimate recovery of unsteady flow line scheme, according to improving recovery ratio size, selects to implement optimal case.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968647A (en) * | 2017-05-23 | 2017-07-21 | 中海石油(中国)有限公司 | A kind of preparation method of slit formation Carbonate Reservoir perforation |
| CN107939357A (en) * | 2017-11-30 | 2018-04-20 | 中国石油化工股份有限公司 | Improve oilfield development system efficiency method |
| CN109577942A (en) * | 2017-09-27 | 2019-04-05 | 中国石油化工股份有限公司 | A kind of Tapping Potential Method of dominant flowing path development oil reservoir remaining oil |
| CN110630245A (en) * | 2019-09-20 | 2019-12-31 | 中国石油集团川庆钻探工程有限公司 | Single-well oil drainage area quantitative calculation method based on permeability advantage channel |
| CN113343434A (en) * | 2021-08-06 | 2021-09-03 | 中国海洋石油集团有限公司 | Development method utilizing oil field large pore passage |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146788A (en) * | 2011-03-30 | 2011-08-10 | 中国石油化工股份有限公司 | Method for enhancing recovery ratio through three-dimensional streamline regulation of water drive reservoir |
| EP2559844A2 (en) * | 2011-08-17 | 2013-02-20 | Wintershall Holding GmbH | Method for transporting crude oil from subterranean storage areas |
| CN103745022A (en) * | 2013-11-14 | 2014-04-23 | 中国石油化工股份有限公司 | Changing-streamline adjusting method after polymer flooding |
| CN103742130A (en) * | 2013-01-11 | 2014-04-23 | 中国石油化工股份有限公司 | High permeability band characterization method based on time varying |
| CN103899285A (en) * | 2012-12-29 | 2014-07-02 | 中国石油化工股份有限公司 | Similar limit water cut period take-turn water drive method for multi-layer sandstone reservoir |
| CN104100243A (en) * | 2013-04-08 | 2014-10-15 | 中国石油化工股份有限公司 | Three-stage subdivision method for retarding interlayer interference of fault-block oil reservoir with ultrahigh water-cut stage and multiple oil layers |
-
2015
- 2015-08-25 CN CN201510527011.XA patent/CN105822270A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146788A (en) * | 2011-03-30 | 2011-08-10 | 中国石油化工股份有限公司 | Method for enhancing recovery ratio through three-dimensional streamline regulation of water drive reservoir |
| EP2559844A2 (en) * | 2011-08-17 | 2013-02-20 | Wintershall Holding GmbH | Method for transporting crude oil from subterranean storage areas |
| CN103899285A (en) * | 2012-12-29 | 2014-07-02 | 中国石油化工股份有限公司 | Similar limit water cut period take-turn water drive method for multi-layer sandstone reservoir |
| CN103742130A (en) * | 2013-01-11 | 2014-04-23 | 中国石油化工股份有限公司 | High permeability band characterization method based on time varying |
| CN104100243A (en) * | 2013-04-08 | 2014-10-15 | 中国石油化工股份有限公司 | Three-stage subdivision method for retarding interlayer interference of fault-block oil reservoir with ultrahigh water-cut stage and multiple oil layers |
| CN103745022A (en) * | 2013-11-14 | 2014-04-23 | 中国石油化工股份有限公司 | Changing-streamline adjusting method after polymer flooding |
Non-Patent Citations (1)
| Title |
|---|
| 李阳等: "陆相水驱油藏剩余油富集区研究", 《石油勘探与开发》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968647A (en) * | 2017-05-23 | 2017-07-21 | 中海石油(中国)有限公司 | A kind of preparation method of slit formation Carbonate Reservoir perforation |
| CN106968647B (en) * | 2017-05-23 | 2019-02-26 | 中海石油(中国)有限公司 | A kind of preparation method of slit formation Carbonate Reservoir perforation |
| CN109577942A (en) * | 2017-09-27 | 2019-04-05 | 中国石油化工股份有限公司 | A kind of Tapping Potential Method of dominant flowing path development oil reservoir remaining oil |
| CN109577942B (en) * | 2017-09-27 | 2022-07-19 | 中国石油化工股份有限公司 | Excavation and submergence method for residual oil in dominant seepage channel development reservoir |
| CN107939357A (en) * | 2017-11-30 | 2018-04-20 | 中国石油化工股份有限公司 | Improve oilfield development system efficiency method |
| CN110630245A (en) * | 2019-09-20 | 2019-12-31 | 中国石油集团川庆钻探工程有限公司 | Single-well oil drainage area quantitative calculation method based on permeability advantage channel |
| CN113818849A (en) * | 2020-06-18 | 2021-12-21 | 中国石油化工股份有限公司 | Method for improving oil extraction speed of oil-water reverse migration development with low cost |
| CN113818849B (en) * | 2020-06-18 | 2023-08-01 | 中国石油化工股份有限公司 | Method for improving oil extraction speed by reverse migration of oil and water at low cost |
| CN113343434A (en) * | 2021-08-06 | 2021-09-03 | 中国海洋石油集团有限公司 | Development method utilizing oil field large pore passage |
| CN116950637A (en) * | 2023-07-11 | 2023-10-27 | 德州学院 | Single well group profile control method and system based on micro-pressure drive and readable storage medium |
| CN116950637B (en) * | 2023-07-11 | 2024-03-08 | 德州学院 | Single well group profile control method and system based on micro-pressure drive and readable storage medium |
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Application publication date: 20160803 |