CN204703894U - A kind of visual back-up sand experimental facilities for simulating macropore shutoff - Google Patents
A kind of visual back-up sand experimental facilities for simulating macropore shutoff Download PDFInfo
- Publication number
- CN204703894U CN204703894U CN201520300893.1U CN201520300893U CN204703894U CN 204703894 U CN204703894 U CN 204703894U CN 201520300893 U CN201520300893 U CN 201520300893U CN 204703894 U CN204703894 U CN 204703894U
- Authority
- CN
- China
- Prior art keywords
- macropore
- cylinder
- branch
- branch cylinder
- seal cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The utility model relates to transfer drive field, oil field, belong to the macropore shutoff analogue means in the lab simulation technique of research macropore oil reservoir profile modification, providing a kind of visual back-up sand experimental facilities for simulating macropore shutoff, being made up of a main cylinder, three branch's cylindrical shells, four visual windows and four seal covers.The utility model transforms fill out sand tube structure on traditional sandpack column basis, increases branch's cylindrical shell and visual window, can accurate simulation and observe macropore shutoff situation; Simulate different permeability extreme difference and macropore rank by the particle diameter changing different cylindrical shell inner stuffing, to macropore oil reservoir transfer drive system preferably and transfer drive parameter optimization there is directive significance.
Description
Technical field
The utility model relates to transfer drive field, oil field, belonging to the macropore shutoff analogue means in the lab simulation technique of research macropore oil reservoir profile modification, providing a kind of visual back-up sand experimental facilities for simulating macropore shutoff.
Background technology
Oil field enters stage High water cut middle and later periods, and comprehensive water cut reaches more than 80%, and what have even reaches 90%.Injection water use efficiency is low, development benefit is low, relevant with the macropore formed in reservoir.In the stratum that macropore is grown, macropore becomes the predominant pathway injecting water seepage flow, and the impact scope of injected media is difficult to improve.Injecting water makes other position of reservoir be difficult to be imitated along the poor efficiency of macropore or inefficient cycle, has a strong impact on oil displacement efficiency, causes remaining oil saturation difference in plane obvious.Injection water channeling and the too early water logging of oil well seriously restrict oil extraction.Oil field development is once enter high water cut rate, the existence of macropore makes other well stimulation realization more difficult, such as profile control, high infiltration strip and macropore can cause polymer solution channelling equally, not only cause polymer to waste, and be difficult to form high-quality polymer slug, cause the ineffective or difference that takes effect of the producing well of surrounding, had a strong impact on polymer flooding effect, this will cause oilfield stable production and ultimate recovery and have a strong impact on.
Selective shut-off macropore is conducive to adjusting water stream channel, can improve and inject water impact scope, improves oil recovery factor.Indoor displacement test is preferred transfer drive system, a kind of effective ways optimizing injection parameter, but lacks a kind of stratum analogue means effectively can simulating macropore sandstone oil reservoir at present.Traditional stratum analogue means only can simulate the homogeneous sand-filling tube model of single porosity medium, and this model cannot meet macropore sandstone oil reservoir to the simulation demand simulating macropore region and non-macropore region.Current domestic patent has occurred utilizing multitube to simulate the Patent equipment of macropore, realizes more complicated, can not embody the feature in macropore region, same stratum and non-macropore region, there is larger experimental error.
Utility model content
The utility model aims to provide a kind of visual back-up sand experimental facilities of simulating macropore shutoff, it can simulate the macropore of different-diameter rank, the macropore sandstone oil reservoir under different permeability extreme difference can be simulated, macropore plugging effect can be observed again, the accurate simulation to macropore shutoff can be realized.
For achieving the above object, its technical scheme adopted is as follows:
A kind of visual back-up sand experimental facilities for simulating macropore shutoff, comprise seal cover A, seal cover B, seal cover C, seal cover D, visual window A, visual window B, visual window C, visual window D, branch cylinder A, branch cylinder B, branch cylinder C, main cylinder, sealed tube wire terminal, wherein forms fill out sand tube apparatus main body by main cylinder, branch cylinder A, branch cylinder B and branch cylinder C, seal cover is provided with sealed tube wire terminal, and seal cover A, seal cover B, seal cover C and seal cover D are tightly connected by screw thread and cylinder.
Above-mentioned visual back-up sand experimental facilities, compared with conventional fill out sand tube, is provided with branch cylinder A, branch cylinder B, branch cylinder C, and is respectively arranged with corresponding visual window A, visual window B, visual window C at each branch's cylinder.
Branch cylinder A, branch cylinder B and the length of branch cylinder C and the ratio of main drum length are 1:1, the diameter of branch cylinder A, branch cylinder B and branch cylinder C is 1/3 ~ 2/5 of main drum diameter, visual window is 1/7 ~ 1/5 of corresponding drum length, and visual window organic glass is made.
In branch cylinder A, branch cylinder B and branch cylinder C, fill out the quartz sand of different-grain diameter, quartzy Grains number is greater than 200 orders, quartz sand circularity >=50%.
The utility model tool has the following advantages: by transforming fill out sand tube structure on traditional sandpack column basis, increase branch's cylindrical shell and visual window, can accurate simulation and observe macropore shutoff situation; Simulate different permeability extreme differences and macropore by the particle diameter changing the filler in different cylindrical shell, to macropore sandstone oil reservoir transfer drive system preferably and transfer drive parameter optimization there is directive significance.
Accompanying drawing explanation
Accompanying drawing 1: the utility model device top view;
Accompanying drawing 2: the utility model device sectional drawing;
A-A sectional drawing in accompanying drawing 3: Fig. 1;
B-B sectional drawing in accompanying drawing 4: Fig. 1;
C-C sectional drawing in accompanying drawing 5: Fig. 1;
D-D sectional drawing in accompanying drawing 6: Fig. 1;
Accompanying drawing 7: the utility model device right view.
Symbol description:
1. seal cover A, 2. seal cover B, 3. seal cover C, 4. seal cover D, 5. visual window A, 6. visual window B, 7. visual window C, 8. visual window D, 9. branch's cylinder A, 10. branch's cylinder B, 11. branch cylinder C, 12. main cylinders, 13. Large stone glass marbles, 14. small particle diameter glass marbles, particle diameter glass marble in 15., 16. sealed tube wire terminals.
Detailed description of the invention
Below in conjunction with accompanying drawing and example, the utility model is described in further detail:
As shown in Fig. 1-Fig. 7, a kind of visual fill out sand tube experimental facilities for simulating macropore shutoff of the utility model, it is by seal cover A1, seal cover B2, seal cover C3, seal cover D4, visual window A5, visual window B6, visual window C7, visual window D8, branch cylinder A9, branch cylinder B10, branch cylinder C11, main cylinder 12 and sealed tube wire terminal 16 are formed, wherein by main cylinder 12, branch cylinder A9, branch cylinder B10 and branch cylinder C11 forms fill out sand tube apparatus main body, seal cover is provided with sealed tube wire terminal 16, seal cover A1, seal cover B2, seal cover C3 and seal cover D4 is tightly connected by screw thread and cylinder.
When using visual sand-filling apparatus of the present utility model, first that it is upright, and, carry out back-up sand by its branch's cylinder end upward, carry out compacting according to in-place permeability before water breakthrough, measure simulated formation permeability; Adopt and use the same method, according to the size of stratum macropore, fill and present the quartz sand of different-grain diameter, measure its permeability respectively.
On the basis measuring different-grain diameter homogeneous quartz sand permeability, first that it is upright, and by its branch's cylinder end upward, the quartz sand utilizing particle diameter less carries out back-up sand, carrys out compacting according to in-place permeability before water breakthrough; Then in different branches cylinder, adopt the quartz sand of different-grain diameter to carry out back-up sand operation, carry out compacting according to stratum macropore size; Again seal cover and visual sand-filling apparatus main body are passed through thread seal, connect displacement test pipeline, complete saturation water and water drive, measure the size of shutoff its basic pressure reduction front and port of export shunt volume; Inject shutoff system, sequent water flooding operates, the size of basic pressure reduction and port of export shunt volume after mensuration shutoff, and the water-flooding pressure difference before and after analysis shutoff and the Changing Pattern of shunt volume, draw corresponding conclusion.
Claims (4)
1. one kind for simulating the visual back-up sand experimental facilities of macropore shutoff, comprise seal cover A (1), seal cover B (2), seal cover C (3), seal cover D (4), visual window A (5), visual window B (6), visual window C (7), visual window D (8), branch cylinder A (9), branch cylinder B (10), branch cylinder C (11), main cylinder (12) and sealed tube wire terminal (16), wherein by main cylinder (12), branch cylinder A (9), branch cylinder B (10) and branch cylinder C (11) composition fill out sand tube apparatus main body, seal cover is provided with sealed tube wire terminal (16), seal cover A (1), seal cover B (2), seal cover C (3) and seal cover D (4) is tightly connected by screw thread and cylinder.
2. a kind of visual back-up sand experimental facilities for simulating macropore shutoff according to claim 1, it is characterized in that: be provided with branch cylinder A (9), branch cylinder B (10), branch cylinder C (11), and be respectively arranged with corresponding visual window A (5), visual window B (6), visual window C (7) at each branch's cylinder.
3. a kind of visual back-up sand experimental facilities for simulating macropore shutoff according to claim 1, it is characterized in that: branch cylinder A (9), the length of branch cylinder B (10) and branch cylinder C (11) and the ratio of main cylinder (12) length are 1:1, branch cylinder A (9), the diameter of branch cylinder B (10) and branch cylinder C (11) is 1/3 ~ 2/5 of main cylinder (12) diameter, visual window A (5), visual window B (6), visual window C (7) is 1/7 ~ 1/5 of corresponding drum length, employing organic glass is made.
4. a kind of visual back-up sand experimental facilities for simulating macropore shutoff according to claim 1, it is characterized in that: the quartz sand filling out different-grain diameter in branch cylinder A (9), branch cylinder B (10) and branch cylinder C (11), quartz Grains number is greater than 200 orders, quartz sand circularity >=50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520300893.1U CN204703894U (en) | 2015-05-12 | 2015-05-12 | A kind of visual back-up sand experimental facilities for simulating macropore shutoff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520300893.1U CN204703894U (en) | 2015-05-12 | 2015-05-12 | A kind of visual back-up sand experimental facilities for simulating macropore shutoff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204703894U true CN204703894U (en) | 2015-10-14 |
Family
ID=54283517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520300893.1U Expired - Fee Related CN204703894U (en) | 2015-05-12 | 2015-05-12 | A kind of visual back-up sand experimental facilities for simulating macropore shutoff |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204703894U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101930A (en) * | 2017-06-13 | 2017-08-29 | 北京永瑞达科贸有限公司 | The visual Seepage Flow Simulation Test Unit of discount vibram outlet tee section |
| CN111155991A (en) * | 2020-02-25 | 2020-05-15 | 东北石油大学 | Separable double-layer pressure-resistant sand filling pipe for simulating interlayer cementation poor stratum and simulation method |
-
2015
- 2015-05-12 CN CN201520300893.1U patent/CN204703894U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101930A (en) * | 2017-06-13 | 2017-08-29 | 北京永瑞达科贸有限公司 | The visual Seepage Flow Simulation Test Unit of discount vibram outlet tee section |
| CN111155991A (en) * | 2020-02-25 | 2020-05-15 | 东北石油大学 | Separable double-layer pressure-resistant sand filling pipe for simulating interlayer cementation poor stratum and simulation method |
| CN111155991B (en) * | 2020-02-25 | 2023-06-27 | 东北石油大学 | Separable double-layer pressure-resistant sand filling pipe for simulating interlayer cementing difference stratum and simulation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109612896B (en) | Physical simulation and oil displacement effect evaluation method for real sandstone core containing cracks | |
| CN106437674A (en) | Imitation horizontal well waterflooding well pattern adapting method | |
| CN106596380B (en) | Shale staged fracturing horizontal well fracturing fluid flowback capability evaluation method and device | |
| CN104453802B (en) | A kind of multiple seam closes the coal bed gas pit shaft biphase gas and liquid flow analogue means adopted | |
| CN105089589B (en) | A kind of polymer flooding that realizes closes visual experimental apparatus and the method for work thereof that layer injects with layering | |
| CN103670350B (en) | A kind of variable intensity water injection exploitation method for carbonate fracture-cavity oil reservoir | |
| CN102052067B (en) | In-depth profile control step by step method employing equipressure drop gradient | |
| CN104234740B (en) | A kind of low middle pressure air displacement high pressure coal seam gas train and method thereof | |
| CN103556993A (en) | Simulation experimental analog method for low permeability oilfield planar five-spot well pattern carbon dioxide flooding | |
| CN206091976U (en) | Experimental apparatus is invaded to high pressure -break nature gas reservoir water of simulation high temperature | |
| CN103334725B (en) | Evaluate the method and device of low-permeability oil deposit displacement validity | |
| CN105422057A (en) | Oil extraction method for ultra-low permeable reservoir or dense reservoir | |
| CN104514531A (en) | Method for profile control and water shutoff in two-fluid process for three-low sandstone reservoir | |
| CN104818983B (en) | Physical model experiment system and method that oil reservoir solution cavity collapses with crack closure process | |
| CN204703894U (en) | A kind of visual back-up sand experimental facilities for simulating macropore shutoff | |
| CN204984382U (en) | A visual experimental apparatus in plane for simulating fault block oil reservoir displacement of reservoir oil effect | |
| CN105064920A (en) | Multi-field coupling low-permeability soft coal seam hole punching pressure relief extraction simulation test method | |
| CN106651158B (en) | Quantitative evaluation method for water injection development effectiveness degree of ultra-low permeability tight reservoir horizontal well | |
| CN108828190B (en) | Fracture simulation method for fractured compact sandstone oil and gas reservoir | |
| CN105587300B (en) | Oil production method for horizontal well | |
| CN204759883U (en) | Impervious curtain's test model between simulation concrete and basement rock | |
| CN204677194U (en) | A kind of special fill out sand tube experimental facilities for simulating macropore sandstone oil reservoir | |
| CN106285590A (en) | A kind of judge the apparatus and method whether chemical agent lost efficacy for high infiltration strip parameter | |
| CN206220951U (en) | A kind of experimental provision of simulation oil well foam blocking side water breakthrough | |
| CN105096718A (en) | Test method and model for simulating anti-seepage curtain of reservoir dam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 Termination date: 20160512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |