CN201819863U - Microcosmic visual test device for sand production of oil reservoir - Google Patents
Microcosmic visual test device for sand production of oil reservoir Download PDFInfo
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- CN201819863U CN201819863U CN2010205235316U CN201020523531U CN201819863U CN 201819863 U CN201819863 U CN 201819863U CN 2010205235316 U CN2010205235316 U CN 2010205235316U CN 201020523531 U CN201020523531 U CN 201020523531U CN 201819863 U CN201819863 U CN 201819863U
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Abstract
The utility model discloses a microcosmic visual test device for the sand production of an oil reservoir. The device comprises a sand mixing container, a plywood sheet model, a sand collecting device and a microscopy camera shooting system, wherein the plywood sheet mode comprises a cuboid main body with a gap passageway with even width, and at least one of two parallel side walls which correspond to two long edges of the cross section of the gap passageway are transparent side walls; and the bottom of the cuboid main body is provided with a filtering baffle plate, and the filtering baffle plate consists of a plurality of steel wires which are evenly arranged at intervals and are vertical to the transparent side walls and a plurality of fixed blocks for fixing the steel wires. The microcosmic visual test device can visually analyze the microcosmic transportation process of sand grains and the sand discharging law, can research the principle of the sand production of the oil reservoir which is made from loosened sandstone, and offers the theoretical basis for the high-efficiency development of the oil reservoir which is made from the loosened sandstone.
Description
Technical field
The utility model relates to a kind of oil reservoir microcosmic visual experimental apparatus that shakes out.
Background technology
For marine site, Bohai Sea understressed sand heavy crude reservoir, because viscosity of crude height, formation cementation are loose, the exploitation of offshore oilfield economical and efficient requires highly to output, and the migration of formation fines is inevitable.Simultaneously, the sand control theory of " going all out to fight the floods " certainly will cause the obstruction of formation fines in the immediate vicinity of wellbore, causes oil well productivity to descend.Therefore, suitably amplify the sand control parameter of understressed sand heavy crude reservoir, the stratum molecule is discharged from the immediate vicinity of wellbore in controlled scope, remove near the obstruction of molecule pit shaft, improve the production capacity of oil well, become the developing direction of offshore loose sand heavy crude reservoir exploitation.Mechanism research at sand producing in unconsolidated sandstone reservoir, lot of domestic and international scholar studies, according to the literature, the physical simulation experiment method of fine migration mostly adopts natural core in the research reservoir, the relation between particulate loading of going out in the research fluid injection process and core two ends pressure reduction change.This method emulation degree is higher, but can't go deep into, the migration of every kind of particulate of careful research is to the influence of core rerum natura, still can only rest on the phenomenon the research of the seepage flow mechanism of shaking out.Therefore, be necessary to design the migration that a kind of microcosmic thin slice Visualization Model is observed particulate, this method is comparatively directly perceived, can be at the particulate of every kind of particle diameter, observe its migration characteristics in different pore throat structures, by to flow, sand production rate, go out the measuring and calculating of the change etc. of pressure gradient in fineness of sand, the flow process, deeply, the careful research seepage flow mechanism of shaking out.
The utility model content
The microcosmic visual experimental apparatus that the purpose of this utility model provides a kind of simulating oil deposit to shake out is used to study the understressed sand HEAVY OIL RESERVOIR fine migration rule and the rule of shaking out.
The microcosmic visual experimental apparatus that simulating oil deposit provided by the utility model shakes out comprises mulling container 1, clamping plate thin slice model 2, sand trap 3 and microscope camera system 4;
The outlet of mulling container 1 is connected with the inlet of clamping plate thin slice model 2, and the outlet of clamping plate thin slice model 2 is connected with the inlet of sand trap 3, and microscope camera system 4 is connected with clamping plate thin slice model 2;
Wherein, mulling container 1 is for having the container of agitating function, as the cylinder type container, the function that also can have certain adjusting pressure, such as being connected with high-pressure pump, its effect provides the mulling liquid of stable certain silt concertation, makes stable mulling liquid enter clamping plate thin slice model and experimentizes.
Clamping plate thin slice model 2 comprises the cuboid main body 6 of the slit passage 7 with even width, and at least one is transparent sidewall in two parallel side walls of the cuboid main body of two long limit correspondences of slit passage 7 xsects; Cuboid main body 6 bottoms are established and are filtered baffle plate 8, and described filtration baffle plate 8 is by forming perpendicular to the steel wire 9 of above-mentioned transparent sidewall and the fixed block 10 of fixing described steel wire that some proportional spacings are arranged; Cuboid main body 6 tops are provided with the loam cake afflux mouth 12 that setting is communicated with slit passage 7 on loam cake 11, the loam cake 11; The filtration baffle plate 8 arranged outside lower covers 13 of cuboid main body 6 bottoms, lower cover 13 is provided with the lower cover afflux mouth 14 that is communicated with slit passage 7.The xsect of slit passage 7 is a rectangle, and is long-range much larger than wide, and it is wide to be below the 4mm, to be preferably 2mm, and the spacing of steel wire can be filtered the setting of order number according to concrete experiment needs, the filtration baffle plate 8 of number cover different spacing can be set, to adapt to different experiments.
Sand trap 3 comprises funnel 15 and graduated cylinder 16, and graduated cylinder 16 inlets are located at funnel 15 outlet lower ends; For the ease of operation, the funnel lower end is with seal rubber sleeve 17, and seal rubber sleeve is provided with the choked flow folder 18 of control liquid stream.
The effect of sand trap 3 is the mulling liquid that makes to come out from the baffle plate of clamping plate thin slice model, and the funnel measuring system that enters sand trap can be collected mulling liquid and recording liquid flow, sand cut, particle diameter etc. shakes out.
Described microscope camera system 4 is made up of microscope, video camera and data analysis computing machine, and the microscope camera lens is aimed at the passage place, slit of transparent sidewall; Microscope camera system 4 main effects are that the experiment overall process of clamping plate thin slice model 2 is carried out record, are convenient to analysis and research.
The end entrance centre position also is provided with baffle plate 19 on the slit passage 7 of above-mentioned clamping plate thin slice model 2, and baffle plate 19 makes liquid walk around baffle plate and enters in the slit passage 7.
The microcosmic visual experimental apparatus that described simulating oil deposit shakes out also comprises support 5, and described support 5 is with mulling container 1, clamping plate thin slice model 2, sand trap 3 support fixation.
For the ease of operation, the funnel lower end is with seal rubber sleeve 17, and seal rubber sleeve is provided with the choked flow folder 18 of control liquid stream.
The utility model discloses a kind of oil reservoir microcosmic visual experimental apparatus that shakes out.
The experiment that utilizes the utility model device to carry out can be analyzed the microcosmic migration process of sand grains and the rule of shaking out intuitively, sand producing in unconsolidated sandstone reservoir is carried out mechanism research, for the efficient exploitation of loose sand oil accumulation is provided fundamental basis.During concrete the use, experimental difference is provided with different sand grains, size composition in order to the simulating oil deposit immediate vicinity of wellbore, say sand grains and simulation fluid mixing in mulling container 1, enter the afflux mouth of the loam cake of clamping plate thin slice model 2 then, through clamping plate thin slice model, enter in the funnel of sand trap 3 from the lower cover afflux mouth of steel wire base plate, sand grains is filtered out, liquid flows in the graduated cylinder.In the experimentation, microscopic motion situations such as the migration of microscope camera system record sand grains in model, stopping state are in order to its flow mechanism of analyzing and researching.Collect liquid of testing the exit and the sand grains that comes out through the steel wire base plate by sand trap, in order to the relation between the thin slice model permeability after the original particle size composition of analyzing the thin slice sand-packed model, initial permeability, displacing velocity, baffle dimensions and sand production rate, outflow sand maximum particle diameter and the displacement.
Device of the present utility model is comparatively directly perceived, can be at the particulate of every kind of particle diameter, observe its migration characteristics in different pore throat structures, by to flow, sand production rate, go out the measuring and calculating of the change etc. of pressure gradient in fineness of sand, the flow process, deeply, the careful research seepage flow mechanism of shaking out.The experiment that utilizes the utility model device to carry out can be analyzed the microcosmic migration process of sand grains and the rule of shaking out intuitively, sand producing in unconsolidated sandstone reservoir is carried out mechanism research, for the efficient exploitation of loose sand oil accumulation is provided fundamental basis.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the shake out structural representation of microcosmic visual experimental apparatus of oil reservoir.
Fig. 2 is the shake out structural representation of clamping plate thin slice model 2 of microcosmic visual experimental apparatus of oil reservoir.
Fig. 3 is an A-A cut-open view among Fig. 2.
Fig. 4 is a B-B cut-open view among Fig. 2.
Embodiment
As shown in Figure 1, be the oil reservoir of the present utility model microcosmic visual experimental apparatus that shakes out.
This oil reservoir microcosmic visual experimental apparatus that shakes out comprises mulling container 1, clamping plate thin slice model 2, sand trap 3 and microscope camera system 4; The outlet of mulling container 1 is connected with the inlet of clamping plate thin slice model 2, and the outlet of clamping plate thin slice model 2 is connected with the inlet of sand trap 3, and microscope camera system 4 is connected with clamping plate thin slice model 2;
Wherein, mulling container 1 is for having the container of agitating function, as the cylinder type container, the function that also can have certain adjusting pressure, such as being connected with high-pressure pump, and tensimeter is housed, and its effect provides the mulling liquid of stable certain silt concertation, makes stable mulling liquid enter clamping plate thin slice model and experimentizes.
As Fig. 2-shown in Figure 4, clamping plate thin slice model 2 comprises the cuboid main body 6 of the slit passage 7 with even width, and at least one is transparent sidewall in two parallel side walls of the cuboid main body of two long limit correspondences of slit passage 7 xsects; Cuboid main body 6 bottoms are established and are filtered baffle plate 8, and described filtration baffle plate 8 is by forming perpendicular to the steel wire 9 of above-mentioned transparent sidewall and the fixed block 10 of fixing described steel wire that some proportional spacings are arranged; Cuboid main body 6 tops are provided with the loam cake afflux mouth 12 that setting is communicated with slit passage 7 on loam cake 11, the loam cake 11; The filtration baffle plate 8 arranged outside lower covers 13 of cuboid main body 6 bottoms, lower cover 13 is provided with the lower cover afflux mouth 14 that is communicated with slit passage 7.The xsect of slit passage 7 is a rectangle, and is long-range much larger than wide, and it is wide to be below the 4mm, to be preferably 2mm, and the spacing of steel wire can be filtered the setting of order number according to concrete experiment needs, the filtration baffle plate 8 of number cover different spacing can be set, to adapt to different experiments.The inlet of the outlet of mulling container 1 and clamping plate thin slice model 2 is connected to and is tightly connected, and in case of necessity, interface channel is established the tensimeter monitoring pressure between them.
Sand trap 3 comprises funnel 15 and graduated cylinder 16, and graduated cylinder 16 inlets are located at funnel 15 outlet lower ends; For the ease of operation, the funnel lower end is with seal rubber sleeve 17, and seal rubber sleeve is provided with the choked flow folder 18 of control liquid stream.
The effect of sand trap 3 is the mulling liquid that makes to come out from the baffle plate of clamping plate thin slice model, and the funnel measuring system that enters sand trap can be collected mulling liquid and recording liquid flow, sand cut, particle diameter etc. shakes out.
Described microscope camera system 4 is made up of microscope, video camera and data analysis computing machine, and the microscope camera lens is aimed at the passage place, slit of transparent sidewall; Microscope camera system 4 main effects are that the experiment overall process of clamping plate thin slice model 2 is carried out record, are convenient to analysis and research.
The end entrance centre position also is provided with baffle plate 19 on the slit passage 7 of above-mentioned clamping plate thin slice model 2, and baffle plate 19 makes liquid walk around baffle plate and enters in the slit passage 7.
The microcosmic visual experimental apparatus that described simulating oil deposit shakes out also comprises support 5, and described support 5 is with mulling container 1, clamping plate thin slice model 2, sand trap 3 support fixation.
For the ease of operation, the funnel lower end is with seal rubber sleeve 17, and seal rubber sleeve is provided with the choked flow folder 18 of control liquid stream.The utility model discloses a kind of oil reservoir microcosmic visual experimental apparatus that shakes out.
In one embodiment, clamping plate thin slice model, combine by two blocks of tempered glass, one side has the afflux mouth, an other side base plate, and passage is left (as Fig. 2-Fig. 4) in the centre, the space seam at two tempered glass adhesive channel places is wide to be 2mm, form a width 2mm, length 20mm, the degree of depth is the flow channel about 200mm.The difference of clamping plate model internal condition experiment is provided with different sand grains, in order to the size composition of simulating oil deposit immediate vicinity of wellbore, lays steel wire between the base plate baffle plate, steel wire φ 1mm, the employing pattern that is arranged in parallel, the steel wire spacing is determined according to the sieve number of correspondence, in order to the anti-sandpipe at simulation oil field scene.Mulling container 1 material: organic glass, volume: 2000ml, load: 3MPa, performance: 180 ° are waved frequency-adjustable speed-adjustable.Clamping plate thin slice model pressure-bearing: 3MPa; Steel wire base plate 1mm steel wire, 7 kinds of order numbers, every kind 10 cover, support, stainless steel, tensimeter; Precision: 0.4 grade, range: 4MPa, pipe valve, 6mm.It is identical substantially with on-the-spot parameter of shaking out to experiment showed, that this device can well shake out by simulating oil deposit, has good stability and credibility.
Based on above-mentioned design, utilize the utility model device, can analyze the microcosmic migration process of sand grains and the rule of shaking out intuitively, sand producing in unconsolidated sandstone reservoir is carried out mechanism research, for the efficient exploitation of loose sand oil accumulation is provided fundamental basis.During concrete the use, experimental difference is provided with different sand grains, size composition in order to the simulating oil deposit immediate vicinity of wellbore, say sand grains and simulation fluid mixing in mulling container 1, enter the afflux mouth of the loam cake of clamping plate thin slice model 2 then, through clamping plate thin slice model, enter in the funnel of sand trap 3 from the lower cover afflux mouth of steel wire base plate, sand grains is filtered out, liquid flows in the graduated cylinder.In the experimentation, microscopic motion situations such as the migration of microscope camera system record sand grains in model, stopping state are in order to its flow mechanism of analyzing and researching.Collect liquid of testing the exit and the sand grains that comes out through the steel wire base plate by sand trap, in order to the relation between the thin slice model permeability after the original particle size composition of analyzing the thin slice sand-packed model, initial permeability, displacing velocity, baffle dimensions and sand production rate, outflow sand maximum particle diameter and the displacement.
Device of the present utility model is comparatively directly perceived, can be at the particulate of every kind of particle diameter, observe its migration characteristics in different pore throat structures, by to flow, sand production rate, go out the measuring and calculating of the change etc. of pressure gradient in fineness of sand, the flow process, deeply, the careful research seepage flow mechanism of shaking out.The experiment that utilizes the utility model device to carry out can be analyzed the microcosmic migration process of sand grains and the rule of shaking out intuitively, sand producing in unconsolidated sandstone reservoir is carried out mechanism research, for the efficient exploitation of loose sand oil accumulation is provided fundamental basis.
Claims (10)
1. oil reservoir microcosmic visual experimental apparatus that shakes out, it is characterized in that: the microcosmic visual experimental apparatus that this simulating oil deposit shakes out comprises mulling container (1), clamping plate thin slice model (2), sand trap (3) and microscope camera system (4); The outlet of mulling container (1) is connected with the inlet of clamping plate thin slice model (2), and the outlet of clamping plate thin slice model (2) is connected with the inlet of sand trap (3), and microscope camera system (4) is connected with clamping plate thin slice model (2);
Wherein, described clamping plate thin slice model (2) comprises the cuboid main body (6) of the slit passage (7) with even width, and at least one is transparent sidewall in two parallel side walls of two long limit correspondences of slit passage (7) xsect; Cuboid main body (6) bottom is established and is filtered baffle plate (8), and described filtration baffle plate (8) is by forming perpendicular to the steel wire (9) of above-mentioned transparent sidewall and the fixed block (10) of fixing described steel wire that some proportional spacings are arranged; Cuboid main body (6) top is provided with loam cake (11), and loam cake (11) is gone up the loam cake afflux mouth (12) that is communicated with slit passage (7) is set; Filtration baffle plate (8) the arranged outside lower cover (13) of cuboid main body (6) bottom, the lower cover afflux mouth (14) that lower cover (13) setting is communicated with slit passage (7);
Described sand trap (3) comprises funnel (15) and graduated cylinder (16), and graduated cylinder (16) inlet is located at funnel (15) outlet lower end;
Described microscope camera system (4) is made up of microscope, video camera and data analysis computing machine, and the microscope camera lens is aimed at the passage place, slit of transparent sidewall.
2. the oil reservoir according to claim 1 microcosmic visual experimental apparatus that shakes out is characterized in that: described slit passage (7) is wide for below the 4mm.
3. the oil reservoir according to claim 2 microcosmic visual experimental apparatus that shakes out, it is characterized in that: described slit passage (7) is 2mm.
4. according to the microcosmic visual experimental apparatus that shakes out of any described oil reservoir among the claim 1-3, it is characterized in that: mulling container (1) is for having the container of agitating function.
5. according to the microcosmic visual experimental apparatus that shakes out of any described oil reservoir among the claim 1-3, it is characterized in that: the slit passage (7) of described clamping plate thin slice model (2) is gone up the end entrance centre position and also is provided with baffle plate (19), and baffle plate (19) makes liquid walk around baffle plate and enters in the slit passage (7).
6. the oil reservoir according to claim 4 microcosmic visual experimental apparatus that shakes out is characterized in that: the slit passage (7) of described clamping plate thin slice model (2) is gone up the end entrance centre position and also is provided with baffle plate (19).
7. according to the microcosmic visual experimental apparatus that shakes out of any described oil reservoir among the claim 1-3, it is characterized in that: the microcosmic visual experimental apparatus that described simulating oil deposit shakes out also comprises support (5), described support (5) is with mulling container (1), clamping plate thin slice model (2), sand trap (3) support fixation, and described mulling container (1), clamping plate thin slice model (2), sand trap (3) are gone up by top-down stationkeeping at support (5).
8. the oil reservoir according to claim 4 microcosmic visual experimental apparatus that shakes out, it is characterized in that: the microcosmic visual experimental apparatus that described simulating oil deposit shakes out also comprises support (5), described support (5) is with mulling container (1), clamping plate thin slice model (2), sand trap (3) support fixation, and described mulling container (1), clamping plate thin slice model (2), sand trap (3) are gone up by top-down stationkeeping at support (5).
9. the oil reservoir according to claim 5 microcosmic visual experimental apparatus that shakes out, it is characterized in that: the microcosmic visual experimental apparatus that described simulating oil deposit shakes out also comprises support (5), described support (5) is with mulling container (1), clamping plate thin slice model (2), sand trap (3) support fixation, and described mulling container (1), clamping plate thin slice model (2), sand trap (3) are gone up by top-down stationkeeping at support (5).
10. the oil reservoir according to claim 6 microcosmic visual experimental apparatus that shakes out, it is characterized in that: the microcosmic visual experimental apparatus that described simulating oil deposit shakes out also comprises support (5), described support (5) is with mulling container (1), clamping plate thin slice model (2), sand trap (3) support fixation, and described mulling container (1), clamping plate thin slice model (2), sand trap (3) are gone up by top-down stationkeeping at support (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010205235316U CN201819863U (en) | 2010-09-08 | 2010-09-08 | Microcosmic visual test device for sand production of oil reservoir |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010205235316U CN201819863U (en) | 2010-09-08 | 2010-09-08 | Microcosmic visual test device for sand production of oil reservoir |
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| CN201819863U true CN201819863U (en) | 2011-05-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975729A (en) * | 2010-09-08 | 2011-02-16 | 中国海洋石油总公司 | Micro-visualized experiment device for reservoir sanding |
| CN108717005A (en) * | 2018-07-27 | 2018-10-30 | 中国石油大学(华东) | A kind of preparation method of artificial viscous crude sandstone |
| CN111257177A (en) * | 2020-02-20 | 2020-06-09 | 中国石油大学(华东) | Gas well sand production detection experimental device |
-
2010
- 2010-09-08 CN CN2010205235316U patent/CN201819863U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975729A (en) * | 2010-09-08 | 2011-02-16 | 中国海洋石油总公司 | Micro-visualized experiment device for reservoir sanding |
| CN101975729B (en) * | 2010-09-08 | 2013-04-24 | 中国海洋石油总公司 | Micro-visualized experiment device for reservoir sanding |
| CN108717005A (en) * | 2018-07-27 | 2018-10-30 | 中国石油大学(华东) | A kind of preparation method of artificial viscous crude sandstone |
| CN111257177A (en) * | 2020-02-20 | 2020-06-09 | 中国石油大学(华东) | Gas well sand production detection experimental device |
| CN111257177B (en) * | 2020-02-20 | 2022-06-07 | 中国石油大学(华东) | Gas well sand production detection experimental device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee after: China National Offshore Oil Corporation Patentee after: CNOOC Research Institute Patentee after: Southwest Petroleum University Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee before: China National Offshore Oil Corporation Patentee before: CNOOC Research Center Patentee before: Southwest Petroleum University |
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Granted publication date: 20110504 Effective date of abandoning: 20130424 |
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