CN216381351U - Horizontal well staged fracturing sand mulling supporting seam physical simulation device - Google Patents
Horizontal well staged fracturing sand mulling supporting seam physical simulation device Download PDFInfo
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- CN216381351U CN216381351U CN202220680843.0U CN202220680843U CN216381351U CN 216381351 U CN216381351 U CN 216381351U CN 202220680843 U CN202220680843 U CN 202220680843U CN 216381351 U CN216381351 U CN 216381351U
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- 238000004088 simulation Methods 0.000 title claims abstract description 29
- 239000004576 sand Substances 0.000 title claims abstract description 10
- 238000002347 injection Methods 0.000 claims abstract description 31
- 239000007924 injection Substances 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims description 45
- 238000003825 pressing Methods 0.000 claims description 24
- 239000000700 radioactive tracer Substances 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 6
- 239000012780 transparent material Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000008187 granular material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000011900 installation process Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 229940099259 vaseline Drugs 0.000 description 2
- 101700004678 SLIT3 Proteins 0.000 description 1
- 102100027339 Slit homolog 3 protein Human genes 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004401 flow injection analysis Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The utility model relates to a horizontal well staged fracturing sand mulling supporting seam physical simulation device, and relates to the technical field of fracturing simulation equipment. The device includes the crack model, the crack model includes several crack board, arbitrary adjacent two the crack board constitutes a simulation crack, the both ends of simulation crack are provided with inlet channel and flowing back passageway respectively, the simulation crack intussuseption is filled with simulation proppant, simulation proppant includes proppant granule and slowly-releasing spike agent, the upper portion and the lower part of crack board are equipped with pressure strip and lower pressure strip respectively, go up the pressure strip with it is fixed that lower pressure strip passes through annular frame, injection system connects inlet channel. Through setting up the crack board for required crack form can be constituteed at random to this device, makes ultimate simulation crack form abundanter, can provide better data support for actual fracturing.
Description
Technical Field
The utility model relates to the technical field of fracturing simulation equipment, in particular to a horizontal well staged fracturing sand mulling supporting seam physical simulation device.
Background
The fracturing tracing technology is characterized in that different types of tracers are added into fracturing fluid, the flowback fluid is closely monitored and sampled in the flowback process, quantitative analysis is carried out according to the concentration change of the tracers in the flowback fluid, and the fracture stratum, the yield condition and the capacity contribution rate of each fracturing section after fracturing modification are determined. However, the fracture tracing technology is difficult to develop on site, and the accumulated data is small at present, so that the prior art tries to research some indoor physical simulation devices according to the fracture tracing technology to provide data support for the fracture tracing technology on site.
For example, chinese patent CN109869126A discloses a fracturing tracing simulation experiment device and a test method, which utilize a reservoir simulation tank to simulate the fracturing and flowback processes, but in this patent, the fracturing fracture is not simulated, so there is a large difference between the simulated result and the actual result by the device.
SUMMERY OF THE UTILITY MODEL
In order to solve at least one problem, the utility model provides a horizontal well staged fracturing sand mulling supporting seam physical simulation device, which simulates a fracture through a fracture plate, can be used for preparing various different fracture types, has a wider application range, and can provide good data support for a fracturing tracing technology.
In order to achieve the purpose, the technical scheme of the utility model is as follows: a horizontal well staged fracturing sand mulling supporting seam physical simulation device comprises,
the fracture model comprises a plurality of fracture plates, any two adjacent fracture plates form a simulated fracture, a liquid inlet channel and a liquid outlet channel are respectively arranged at two ends of the simulated fracture, a simulated proppant is filled in the simulated fracture, the simulated proppant comprises proppant particles and a slow-release tracer, an upper pressing plate and a lower pressing plate are respectively arranged at the upper part and the lower part of the fracture plate, and the upper pressing plate and the lower pressing plate are fixed through an annular frame;
and the injection system is connected with the liquid inlet channel.
One embodiment of the present invention is that at least one of the upper pressing plate and the lower pressing plate is made of a transparent material, and both the upper pressing plate and the lower pressing plate are rigid plates.
In one embodiment of the present invention, the slit plate is an elastic plate.
One embodiment of the utility model is that the injection system comprises one injection pump, and the injection pump is connected in parallel with all the inlet channels.
One embodiment of the utility model is that the injection system comprises a plurality of injection pumps, and only one injection pump is connected to any one of the inlet channels.
The device has the advantages that the required crack forms can be randomly formed by arranging the crack plates, so that the final simulated crack forms are richer, and better data support can be provided for actual fracturing.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a slit plate of different structure;
fig. 3 is a sectional view taken along a-a in fig. 1.
In the figure: 1 is an annular frame, 2 is a crack plate, 3 is a simulated crack, 4 is a liquid inlet channel, 5 is a liquid discharge channel, 6 is a liquid injection pump, 7 is an upper pressure plate, 8 is a lower pressure plate, and 9 is a bolt; 101 is an upper ring frame, 102 is a lower ring frame, and 301 is a simulated proppant.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
A horizontal well staged fracturing sand mulling supporting seam physical simulation device comprises,
the fracture model comprises a plurality of fracture plates 2, wherein any two adjacent fracture plates 2 form a simulated fracture 3, two ends of the simulated fracture 3 are respectively provided with a liquid inlet channel 4 and a liquid outlet channel 5, a simulated proppant 301 is filled in the simulated fracture 3, the simulated proppant 301 comprises proppant particles and a slow-release tracer, the upper part and the lower part of each fracture plate 2 are respectively provided with an upper compression plate 7 and a lower compression plate 8, and the upper compression plate 7 and the lower compression plate 8 are fixed through an annular frame 1;
and the injection system is connected with the liquid inlet channel 4.
Specifically, as shown in fig. 1 and 2, the fracture model includes a plurality of fracture plates 2, wherein each of the fracture plates 2 has the same length, so that two ends of a simulated fracture 3 formed by the fracture plates can be better communicated with a liquid inlet channel 4 and a liquid outlet channel 5: although theoretically, the length of the crack plate 2 is different, the simulation crack 3 can be formed, and the liquid inlet channel 4 and the liquid discharge channel 5 can also be connected, however, when the length of the crack plate 2 is different, the length of the simulation crack 3 is also different, so that the arrangement positions of the liquid inlet channel 4 and the liquid discharge channel 5 are greatly changed (namely, distributed irregularly), the structure of the whole crack model is not standard, the structure of the simulation crack 3 of the crack model is limited, and the production cost and the preparation difficulty are increased.
Referring to fig. 2, two side edges of the slit plate 2 may be prepared in different shapes, so that simulated slits 3 in different shapes can be prepared by combining slit plates 2 in different shapes, and the width of the simulated slit 3 can be adjusted by adjusting the distance between the two slit plates 2, so that the apparatus can simulate more types of slits, and fig. 2 shows a plurality of slit plates 2 in different shapes, but those skilled in the art should know that the shape of the slit plate 2 should not be limited to the shape shown in fig. 2, and those skilled in the art can arrange more slit plates 2 in different shapes according to actual situations.
Theoretically, the crack plate 2 can be applied to the device regardless of whether the crack plate is a rigid plate or an elastic plate, but the effect of using the elastic plate is better from the practical use effect: when the crack board 2 is the elastic plate, the pressure strip is better to the sealed effect of crack board 2, and when the experiment, the phenomenon of scurrying is difficult to take place, and more coincide with the cracked distribution condition in the segmentation fracturing process of reality, consequently, in this embodiment, the material of crack board 2 is the silica gel board.
As shown in fig. 3, for the simulated fracture 3, in order to fully simulate the fracture, a simulated proppant 301 is further filled in the simulated fracture 3, the simulated proppant 301 is the same as a proppant used in an actual fracture tracing technology, and mainly includes a conventional proppant particle and a slow-release tracer, wherein the proppant particle is a particulate matter such as ceramsite and silicon dioxide, and the slow-release tracer is a combination of a tracer and an organic polymer, as shown in chinese patent CN2020109908330, both the proppant, the particle and the slow-release tracer are the prior art, and therefore detailed description of the specific components thereof is omitted in this embodiment.
As shown in fig. 1 and 2, liquid inlet channel 4 and liquid discharge channel 5 are further arranged at two ends of simulation crack 3, test liquid can be injected into simulation crack 3 through liquid inlet channel 4, test liquid can be discharged through liquid discharge channel 5, and the concentration change rule of the tracer in different simulation cracks 3 can be obtained by detecting the concentration of the tracer in the discharged test liquid.
As shown in fig. 3, the upper and lower parts of the simulated crack 3 and the crack plate 2 are respectively provided with an upper pressing plate 7 and a lower pressing plate 8, and the whole simulated crack 3 and the whole crack plate 2 can be pressed through the upper and lower pressing plates 7 and 8, so that the form of the simulated crack 3 is prevented from changing in the experimental process.
In some embodiments, in order to facilitate the observation of the whole experimental process, at least one of the upper pressing plate 7 and the lower pressing plate 8 is provided as a transparent plate, and meanwhile, in order to further fix the form of the simulated crack 3, the upper pressing plate 7 and the lower pressing plate 8 are preferably rigid plates, and in this embodiment, the material of the upper pressing plate 7 and the lower pressing plate 8 is preferably a sub-force plate.
In order to further fix whole crack model, still be provided with an annular frame 1, the overall structure of annular frame 1 is an annular, can fix last pressure strip 7, lower pressure strip 8, crack board 2. In this embodiment, the structure of the annular frame 1 is an upper part and a lower part: the upper ring frame 101 and the lower ring frame 102 are fastened by bolts 9, and the upper ring frame 101 and the lower ring frame 102 are fastened together. Through last annular frame 101 and lower annular frame 102, can fix last pressure strip 7, lower pressure strip 8, crack board 2, also can dismantle simultaneously, the subsequent processing after the experiment of being convenient for ended, in this embodiment, the material of going up annular frame 101 and lower annular frame 102 is steel.
For the injection system, it can adopt the conventional injection system, such as the form of the liquid injection pump 6 and the intermediate container, but in the device, the requirement on the injection system is low, the complex form is not needed, only the liquid injection pump 6 is needed to be adopted as the injection device, and of course, the injection system also comprises a liquid storage tank to store the liquid needed by the experiment.
For an injection system, it can take two different forms: 1. the mode that the same liquid injection pump 6 is connected with a plurality of liquid inlet channels 4 can be adopted, the liquid inlet channels 4 are connected in parallel, and when an experiment is carried out, experimental liquid can be injected into the liquid inlet channels 4 through the liquid injection pump 6; 2. it is also possible to provide a plurality of the charge pumps 6, one charge pump 6 being connected to each of the charge channels 4. Both forms have their own advantages: for the type 1 form, the operation is simpler, the cost is lower, and meanwhile, the method is suitable for the condition that the pressure difference between different simulated cracks 3 is relatively close; for the type 2, the injection pressure of each simulated fracture 3 can be more flexibly controlled, fine operation is performed, and the method is suitable for simulating the fracturing fracture with higher requirement on the accuracy of the injection pressure or local abnormal pressure.
During the use, at first connect the equipment to this device: firstly, a lower pressure strip 8 is placed on a lower annular frame 102; then, according to the positions of the liquid inlet channel 4 and the liquid discharge channel 5 and the shape and the size of the crack to be simulated, the crack plates 2 with different shapes and sizes are placed on the lower compacting plate 8, and the positions of the crack plates 2 are properly adjusted to form the simulated cracks 3 with different shapes and sizes; filling a simulated proppant 301 in the simulated fracture 3; installing an upper pressing plate 7; installing an annular frame 101, and fixing the whole crack model by adopting a bolt 9; the injection system is connected.
In the installation process, especially for the installation process of the crack model, the sealing performance of the whole model can be increased by coating vaseline and adding gaskets, for example, when the crack plate 2 is installed, after the vaseline is respectively coated on the crack plate 2 and the lower pressing plate 8, the crack plate 2 is installed on the lower pressing plate 8.
After the whole device is installed, the injection system is utilized, small-flow injection is adopted, timing is started and sampling is carried out through the liquid discharge channel 5 after the flow in each simulated crack 3 is stable, so that the tracer concentration of the liquid discharged from the simulated cracks 3 in different forms is measured, the sampling interval is 6h, and corresponding curves are drawn according to the tracer concentration, so that the tracer concentration change curves of the simulated cracks 3 in different forms are obtained.
Those skilled in the art will appreciate that the above-mentioned method of use is only an illustration of the present embodiment and is not a limitation of the present invention, and those skilled in the art can use the apparatus in the present embodiment to perform experiments by different methods according to the actual situation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A horizontal well staged fracturing sand mulling supporting seam physical simulation device is characterized by comprising,
the fracture model comprises a plurality of fracture plates, any two adjacent fracture plates form a simulated fracture, a liquid inlet channel and a liquid outlet channel are respectively arranged at two ends of the simulated fracture, a simulated proppant is filled in the simulated fracture, the simulated proppant comprises proppant particles and a slow-release tracer, an upper pressing plate and a lower pressing plate are respectively arranged at the upper part and the lower part of the fracture plate, and the upper pressing plate and the lower pressing plate are fixed through an annular frame;
and the injection system is connected with the liquid inlet channel.
2. The horizontal well staged fracturing sand mulling supporting seam physical simulation device according to claim 1, wherein at least one of the upper compression plate and the lower compression plate is made of a transparent material, and the upper compression plate and the lower compression plate are both rigid plates.
3. The horizontal well staged fracturing supporting crack physical simulation device of claim 1, wherein the fracture plate is an elastic plate.
4. The horizontal well staged fracturing and sand mixing support joint physical simulation device according to claim 1, wherein the injection system comprises a liquid injection pump, and the liquid injection pump is connected with all liquid inlet channels in parallel.
5. The horizontal well staged fracturing and mulling support seam physical simulation device according to claim 1, wherein the injection system comprises a plurality of liquid injection pumps, and any liquid inlet channel is only connected with one liquid injection pump.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220680843.0U CN216381351U (en) | 2022-03-28 | 2022-03-28 | Horizontal well staged fracturing sand mulling supporting seam physical simulation device |
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| CN202220680843.0U CN216381351U (en) | 2022-03-28 | 2022-03-28 | Horizontal well staged fracturing sand mulling supporting seam physical simulation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114910391A (en) * | 2022-07-18 | 2022-08-16 | 西安石油大学 | Experimental device and method for evaluating multistage profile control performance of microbial cement in fractured reservoir |
| CN116626269A (en) * | 2023-06-06 | 2023-08-22 | 中国矿业大学(北京) | Ground crack simulation device and ground crack simulation method |
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2022
- 2022-03-28 CN CN202220680843.0U patent/CN216381351U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114910391A (en) * | 2022-07-18 | 2022-08-16 | 西安石油大学 | Experimental device and method for evaluating multistage profile control performance of microbial cement in fractured reservoir |
| CN116626269A (en) * | 2023-06-06 | 2023-08-22 | 中国矿业大学(北京) | Ground crack simulation device and ground crack simulation method |
| CN116626269B (en) * | 2023-06-06 | 2023-11-28 | 中国矿业大学(北京) | Ground crack simulation device and ground crack simulation method |
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Granted publication date: 20220426 |