CN210440016U - Visual analogue means of seam net acid fracturing developments sculpture - Google Patents
Visual analogue means of seam net acid fracturing developments sculpture Download PDFInfo
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- CN210440016U CN210440016U CN201921104334.8U CN201921104334U CN210440016U CN 210440016 U CN210440016 U CN 210440016U CN 201921104334 U CN201921104334 U CN 201921104334U CN 210440016 U CN210440016 U CN 210440016U
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Abstract
The utility model discloses a visual analogue means of seam net acid fracturing dynamic sculpture, including nitrogen cylinder, gas-supply pipe, booster compressor, air feed pipe, reservoir jar, single current valve, annotate liquid port, notes liquid valve, intensification ware, temperature sensor, liquid feed pipe, liquid feed valve, steady rest, timing arm, pressure sensor, first grade seam mainboard, first grade seam subplate, first grade seam form window, second grade seam hinge, second grade seam mainboard, second grade seam subplate, second grade seam form window, first grade seam discharge valve, first grade seam purge valve, second grade seam discharge valve, second grade seam purge valve, first grade seam incomplete acid jar, second grade seam guide pulley, slide rail; the nitrogen cylinder is used as an air source, so that the nitrogen cylinder is safe and environment-friendly; the temperature is adjusted through the temperature rising device, the temperature of a target reservoir is achieved, and the dynamic etching form of the acid liquor during the acid fracturing of the seam network is more accurately researched; the first-level seam and the second-level seam can simulate the dynamic etching state of acid liquor at different inclination angles under the stratum by the driving of the adjusting arm and the matching of the slide rail.
Description
Technical Field
The utility model relates to a seam net acid fracturing developments sculpture visual analogue means, the utility model belongs to the technical field of oil gas field development.
Background
The distribution of carbonate rocks accounts for 20 percent of the total area of global sedimentary rocks, the stored oil gas accounts for 52 percent of the total reserves of the world, a plurality of oil-gas-containing basins which take the carbonate rocks as main hydrocarbon source rocks are found in the world, the total quantity of oil gas exploration of the carbonate rocks in the world is 1434.5 hundred million tons, the quantity of petroleum oil exploration is 750.1 million tons, and the quantity of natural gas exploration is 684.4 million tons. Currently, 313 carbonate oil and gas fields exist in the world, wherein 208 oil fields exist and 105 gas fields exist.
The carbonate oil and gas reservoir has the disadvantages of multiple storage spaces (crack type, fracture-cavity type and hole type), multiple rock structures, complex mineral components and strong heterogeneity, so that the exploitation difficulty is very high, and the exploitation effect is not ideal. Years of mine field experience shows that the most effective method for carbonate reservoirs is acid fracturing, namely, acid liquor is injected into a stratum at injection pressure higher than the fracture pressure of reservoir rocks to generate artificial fractures, fractures with high flow conductivity are formed by non-uniform etching of the walls of the artificial fractures through the acid liquor, and the yield of oil and gas wells is improved. With the deepening of the concept of volume transformation, the seam network acid fracturing is continuously applied to practice, but the dynamic etching experiment aiming at the seam network acid fracturing is less, the visualization degree is lower, and the visual observation cannot be carried out, so that the study on the visual simulation experiment of the seam network acid fracturing dynamic etching is very important.
The utility model discloses can adapt to the condition such as the different inclinations of second grade seam net, natural crack, its device is succinct relatively and is convenient for assemble and dismantle, and stable in structure, can satisfy the required requirement of experiment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a visual analogue means of seam net acid fracturing developments sculpture is provided.
The utility model provides a technical scheme that above-mentioned technical problem adopted is: a visual simulation device for dynamic acid fracturing etching of a seam network is characterized by comprising a nitrogen cylinder, a gas pipe, a supercharger, a gas pipe, a storage tank, a check valve, a liquid injection port, a liquid injection valve, a temperature rising device, a temperature sensor, a liquid feeding pipe, a liquid feeding valve, a stabilizing frame and an adjusting arm; the device comprises a pressure sensor, a primary seam main plate, a primary seam auxiliary plate, a primary seam shape window, a primary seam discharge valve, a primary seam cleaning valve, a secondary seam hinge, a secondary seam main plate, a secondary seam auxiliary plate, a secondary seam shape window, a secondary seam discharge valve, a secondary seam cleaning valve, a primary seam residual acid tank, a secondary seam guide wheel and a slide rail; the nitrogen cylinder is connected to the inlet of the supercharger through a gas pipe; the outlet of the supercharger is connected with an air pipe in series to be connected with an air inlet check valve at the position of the storage tank; the liquid injection port with the liquid injection valve and the temperature sensor are connected to the storage tank, and the inner wall of the storage tank is also provided with a temperature rising device; the fluid enters the slit from the outlet of the reservoir tank through the liquid sending pipe and the liquid sending valve; the primary seam is fastened by a primary seam main plate and a primary seam auxiliary plate through bolts, the primary seam auxiliary plate is provided with a pressure sensor, and the flow form in the primary seam is observed through a primary seam form window; the primary seam main plate and the primary seam auxiliary plate are arranged on the stabilizing frame; the upper part of the right end of the primary seam is connected with a primary seam discharge valve, and the lower part of the right end of the primary seam is connected with a primary seam cleaning valve and connected with a primary seam residual acid tank; the secondary seam is formed by connecting a secondary seam main plate and a secondary seam auxiliary plate through bolts, and the flow form in the secondary seam is observed through a secondary seam form window; a secondary seam guide wheel at the bottom of the secondary seam is arranged on the slide rail and changes the direction of the secondary seam by sliding; the sliding rail is fixed at the bottom of the primary seam main plate to ensure stable support and synchronous inclination angle of the secondary seam; the upper part of the right end of the secondary seam is connected with a secondary seam discharge valve, and the lower part of the right end of the secondary seam is connected with a secondary seam cleaning valve and connected with a secondary seam residual acid tank.
Further, the storage tank is a hollow storage tank, and the temperature raising device is located inside the storage tank.
Furthermore, the primary seam main plate and the primary seam auxiliary plate are connected and sealed through bolts, rock plates required by acid rock reaction are embedded on the primary seam auxiliary plate, and a primary seam shape window is embedded on the primary seam main plate.
Further, the secondary seam mainboard and the secondary seam subplate are connected and sealed through bolts, the rock plates required by acid rock reaction are embedded on the secondary seam subplate, and a secondary seam shape window is embedded on the secondary seam mainboard.
The utility model has the advantages that: (1) a nitrogen cylinder is used as an air source, and after being pressurized by a supercharger, stable pressure is provided to push fluid to enter the seam, so that the environment protection and safety are both considered; (2) the heating temperature can be set to the real temperature of the reconstruction layer section, and the dynamic etching form of the acid liquor during the acid fracturing of the seam net can be more accurately researched; (3) the first-level seam and the second-level seam can simulate the dynamic etching state of acid liquor at different inclination angles under the stratum by the driving of the adjusting arm and the matching of the slide rail.
Drawings
FIG. 1 is a front view of a visual simulation device for acid fracturing dynamic etching of a slotted net;
FIG. 2 is an isometric view of a seam-net acid-fracturing dynamic etching visualization simulation device;
FIG. 3 is a top view of a seam network acid fracturing dynamic etching visualization simulation device;
FIG. 4 is a schematic view of the reservoir tank configuration of the apparatus;
FIG. 5 is a schematic view of the connection structure of the secondary suture of the device;
shown in the figure: 1-nitrogen cylinder, 2-gas pipe, 3-booster, 4-gas pipe, 5-reservoir tank, 6-check valve, 7-liquid injection port, 8-liquid injection valve, 9-temperature rising device, 10-temperature sensor, 11-liquid delivery pipe, 12-liquid delivery valve, 13-stabilizing frame, 14-adjusting arm; 15-pressure sensor, 16-primary seam mainboard, 17-primary seam subplate, 18-primary seam form window, 19-primary seam discharge valve, 20-primary seam cleaning valve, 21-secondary seam hinge, 22-secondary seam mainboard, 23-secondary seam subplate, 24-secondary seam form window, 25-secondary seam discharge valve, 26-secondary seam cleaning valve, 27-primary seam residual acid tank, 28-secondary seam residual acid tank, 29-secondary seam guide wheel and 30-slide rail.
Detailed Description
The present invention will be described in further detail with reference to examples.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, the visual simulation device for dynamic acid fracturing of a seamed net of the present invention comprises a nitrogen cylinder 1, a gas pipe 2, a supercharger 3, a gas pipe 4, a reservoir tank 5, a check valve 6, a liquid injection port 7, a liquid injection valve 8, a temperature raising device 9, a temperature sensor 10, a liquid feeding pipe 11, a liquid feeding valve 12, a stabilizing frame 13, and an adjusting arm 14; the device comprises a pressure sensor 15, a primary seam main plate 16, a primary seam auxiliary plate 17, a primary seam form window 18, a primary seam discharge valve 19, a primary seam cleaning valve 20, a secondary seam hinge 21, a secondary seam main plate 22, a secondary seam auxiliary plate 23, a secondary seam form window 24, a secondary seam discharge valve 25, a secondary seam cleaning valve 26, a primary seam residual acid tank 27, a secondary seam residual acid tank 28, a secondary seam guide wheel 29 and a slide rail 30; the nitrogen cylinder 1 is connected with the inlet of the supercharger 3 through a gas transmission pipe 2; an outlet of the supercharger 3 is connected with an air pipe 4 in series to be connected with an air inlet check valve 6 at the reservoir tank 5; a liquid injection port 7 with a liquid injection valve 8 and a temperature sensor 10 are connected to the storage tank 5, and the inner wall of the storage tank 5 is also provided with a temperature rising device 9; the fluid enters the slit from the outlet of the reservoir tank 5 through the liquid sending pipe 11 and the liquid sending valve 12; the primary seam is fastened by a primary seam main plate 16 and a primary seam auxiliary plate 17 through bolts, the primary seam auxiliary plate 17 is provided with a pressure sensor 15, and the flow form in the primary seam is observed through a primary seam form window 18; the primary seam main plate 16 and the primary seam auxiliary plate 17 are arranged on the stabilizing frame 13, and the primary seam and the secondary seam are driven to rotate to change the angle through the rotation of the adjusting arm 14; the upper part of the right end of the primary seam is connected with a primary seam discharge valve 19, and the lower part of the right end of the primary seam is connected with a primary seam cleaning valve 20 and connected into a primary seam residual acid tank 27; the secondary seam is formed by connecting a secondary seam main plate 22 and a secondary seam auxiliary plate 23 through bolts, observing the flow form in the secondary seam through a secondary seam form window 24, and connecting the primary seam through a pair of secondary seam hinges 21 which are fixed on the primary seam form window 18 in parallel to ensure the angle change of the secondary seam; a secondary seam guide wheel 29 at the bottom of the secondary seam is arranged on the slide rail 30 and changes the direction of the secondary seam by sliding; the slide rail 30 is fixed at the bottom of the primary seam main plate 16 to ensure the stable support and synchronous inclination angle of the secondary seam; the upper part of the right end of the secondary seam is connected with a secondary seam discharge valve 25, and the lower part is connected with a secondary seam cleaning valve 26 which is connected with a secondary seam residual acid tank 28.
The utility model discloses a use is: opening the injection valve 8, loading the weighed acid liquor into the storage tank 5 from the injection port 7, and closing the injection valve 8 after loading; opening the temperature rising device 9 to heat the acid liquor; observing a temperature sensor 10, opening a nitrogen gas cylinder 1, a supercharger 3 and a liquid delivery valve 12 when the temperature rises to the temperature required by the experiment, and injecting gas into a reservoir tank 5 to push fluid into the seam; closing the primary seam cleaning valve 20 and opening the primary seam discharge valve 19; closing the secondary seam cleaning valve and opening the secondary seam discharge valve 25; the adjusting arm 14 is unscrewed, the angle of the primary seam is changed, and the adjusting arm 14 is screwed down after the design angle is reached; the secondary slotted guide wheel 29 is pushed to slide on the slide rail 30 to change the direction to reach the angle of the designed direction; the first-level seam experiment residual acid flows into a first-level seam residual acid tank 27, and the second-level seam experiment waste liquid flows into a second-level seam residual acid tank 28; after the liquid is injected, observing the dynamic etching state of the acid liquid through the primary slit state window 18 and the secondary slit state window 24, and reading the injection pressure from the pressure sensor 15; and after the experiment is finished, the experimental device is cleaned by injecting clear water once again according to the operation.
Claims (4)
1. A visual simulation device for dynamic acid fracturing and etching of a seamed net is characterized by comprising a nitrogen cylinder (1), a gas transmission pipe (2), a supercharger (3), a gas transmission pipe (4), a storage tank (5), a check valve (6), a liquid injection port (7), a liquid injection valve (8), a temperature rising device (9), a temperature sensor (10), a liquid feeding pipe (11), a liquid feeding valve (12), a stabilizing frame (13) and an adjusting arm (14); the device comprises a pressure sensor (15), a primary seam main plate (16), a primary seam auxiliary plate (17), a primary seam form window (18), a primary seam discharge valve (19), a primary seam cleaning valve (20), a secondary seam hinge (21), a secondary seam main plate (22), a secondary seam auxiliary plate (23), a secondary seam form window (24), a secondary seam discharge valve (25), a secondary seam cleaning valve (26), a primary seam residual acid tank (27), a secondary seam residual acid tank (28), a secondary seam guide wheel (29) and a slide rail (30); the nitrogen cylinder (1) is connected to the inlet of the supercharger (3) through a gas transmission pipe (2); an outlet of the supercharger (3) is connected with an air feed pipe (4) in series and is connected with an air inlet check valve (6) at the position of the reservoir tank (5); a liquid injection port (7) with a liquid injection valve (8) and a temperature sensor (10) are connected to the reservoir tank (5), and the inner wall of the reservoir tank (5) is also provided with a temperature rising device (9); the fluid enters the slit from the outlet of the reservoir tank (5) through the liquid sending pipe (11) and the liquid sending valve (12); the primary seam is fastened by a primary seam main plate (16) and a primary seam auxiliary plate (17) through bolts, the primary seam auxiliary plate (17) is provided with a pressure sensor (15), and the flow form in the primary seam is observed through a primary seam form window (18); the primary seam main plate (16) and the primary seam auxiliary plate (17) are arranged on the stabilizing frame (13); the upper part of the right end of the primary seam is connected with a primary seam discharge valve (19), and the lower part of the right end of the primary seam is connected with a primary seam cleaning valve (20) and is connected with a primary seam residual acid tank (27); the secondary seam is formed by connecting a secondary seam main plate (22) and a secondary seam auxiliary plate (23) through bolts, and the flow form in the secondary seam is observed through a secondary seam form window (24); a secondary seam guide wheel (29) at the bottom of the secondary seam is arranged on the slide rail (30) and changes the direction of the secondary seam by sliding; the sliding rail (30) is fixed at the bottom of the primary seam main plate (16) to ensure the stable support and synchronous inclination angle of the secondary seam; the upper part of the right end of the secondary seam is connected with a secondary seam discharge valve (25), and the lower part of the right end of the secondary seam is connected with a secondary seam cleaning valve (26) and connected into a secondary seam residual acid tank (28).
2. The visual simulation device for acid fracturing dynamic etching of seam network according to claim 1, wherein the storage tank (5) is a hollow storage tank, and the temperature raising device (9) is located inside the storage tank (5).
3. The visual simulation device for acid fracturing dynamic etching of the seam network according to claim 1, wherein the primary seam main plate (16) and the primary seam auxiliary plate (17) are connected and sealed through bolts, rock plates required by acid rock reaction are embedded on the primary seam auxiliary plate (17), and a primary seam form window (18) is embedded on the primary seam main plate (16).
4. The visual simulation device for acid fracturing dynamic etching of the seam network according to claim 1, wherein the secondary seam main plate (22) and the secondary seam auxiliary plate (23) are connected and sealed through bolts, rock plates required by acid rock reaction are embedded on the secondary seam auxiliary plate (23), and a secondary seam form window (24) is embedded on the secondary seam main plate (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921104334.8U CN210440016U (en) | 2019-07-15 | 2019-07-15 | Visual analogue means of seam net acid fracturing developments sculpture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921104334.8U CN210440016U (en) | 2019-07-15 | 2019-07-15 | Visual analogue means of seam net acid fracturing developments sculpture |
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| Publication Number | Publication Date |
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| CN210440016U true CN210440016U (en) | 2020-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921104334.8U Expired - Fee Related CN210440016U (en) | 2019-07-15 | 2019-07-15 | Visual analogue means of seam net acid fracturing developments sculpture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727430A (en) * | 2021-01-12 | 2021-04-30 | 西南石油大学 | Flow guiding capacity testing device |
-
2019
- 2019-07-15 CN CN201921104334.8U patent/CN210440016U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727430A (en) * | 2021-01-12 | 2021-04-30 | 西南石油大学 | Flow guiding capacity testing device |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200501 Termination date: 20210715 |
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| CF01 | Termination of patent right due to non-payment of annual fee |