CN216847735U - Compact gas core displacement device - Google Patents
Compact gas core displacement device Download PDFInfo
- Publication number
- CN216847735U CN216847735U CN202220477158.8U CN202220477158U CN216847735U CN 216847735 U CN216847735 U CN 216847735U CN 202220477158 U CN202220477158 U CN 202220477158U CN 216847735 U CN216847735 U CN 216847735U
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- Prior art keywords
- core
- displacement
- rock core
- pipe
- displacement device
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- Expired - Fee Related
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 84
- 239000011435 rock Substances 0.000 claims abstract description 46
- 239000012530 fluid Substances 0.000 claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 239000012466 permeate Substances 0.000 claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000000741 silica gel Substances 0.000 claims description 9
- 229910002027 silica gel Inorganic materials 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 abstract description 14
- 230000035699 permeability Effects 0.000 abstract description 9
- 238000004904 shortening Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 12
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model discloses a compact gas rock core displacement device, including displacement mechanism and survey mechanism, displacement mechanism comprises the rock core holder of three series connection, and the entrance of three rock core holder is connected with the displacement fluid that is used for the displacement fluid to pour into the pipe, the displacement fluid is gone into and is managed on still external high-pressure piston intermediate container that is used for carrying the displacement fluid, and the exit of three rock core holder is connected with the permeate liquid pipe, survey mechanism is connected to the other end of permeate liquid pipe. This compact gas rock core displacement device, high-pressure piston intermediate container are managed the transport to displacement mechanism in with displacement fluid through displacement fluid, and displacement mechanism is established ties by three rock core holder and is formed, consequently can acquire the pressure differential and the flow of every rock core holder through a displacement experiment to can obtain the permeability of every rock core body through calculating, with the length consuming time of shortening the experiment, displacement is efficient.
Description
Technical Field
The utility model relates to a rock core displacement technical field specifically is a compact gas rock core displacement device.
Background
In an indoor simulation experiment of oil exploitation, some core displacement experiments are required to obtain data such as temperature, pressure, flow, permeability and the like. The experiment aim of the core displacement experiment is that liquid passes through the core at a certain flow rate, the liquid permeability of the core is calculated according to Darcy's law by measuring the pressure difference between the inlet and the outlet of the core and the liquid flow passing through the core and combining other parameters, and the stratum sensitivity can be evaluated by calculating the permeability of media such as water, oil and the like in the core, so that the core displacement experiment can be used for researching drilling, water injection and well repairing operations, avoiding or reducing the damage of foreign substances to the stratum and the like.
The conventional rock core displacement device comprises an injection module, a model module, a measurement module, a control module and the like, wherein the model module comprises a rock core holder; at present, a single core is usually measured independently, and a plurality of cores need to be subjected to multiple displacement experiments to determine the permeability of the cores respectively, so that the time consumption is long, and the experiment is not favorable.
To this end, it is necessary to design a compact gas core displacement device so as to solve the problems set forth above.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a compact gas rock core displacement device to solve the problem that above-mentioned background art provided.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a compact gas rock core displacement device, includes displacement mechanism and survey mechanism, displacement mechanism comprises the rock core holder of three series connection, and the entrance of three rock core holder is connected with the displacement fluid that is used for the displacement fluid to pour into the pipe, the displacement fluid is gone into and is gone into the high pressure piston intermediate container that is used for carrying the displacement fluid still external on managing, and the exit of three rock core holder is connected with the permeate liquid pipe, survey mechanism is connected to the other end of permeate liquid pipe.
Preferably, the measuring mechanism comprises a liquid storage cylinder and an electronic precision scale, the electronic precision scale is horizontally arranged, the liquid storage cylinder is arranged at the top of the electronic precision scale, and one end, far away from the rock core holder, of the permeation liquid pipe extends into the liquid storage cylinder.
Preferably, a pressure sensor is further installed at an outlet of each core holder, a control valve a is installed on the displacement fluid inlet pipe, and a control valve b is installed on each permeation fluid pipe.
Preferably, the surface of one end of the permeate liquid pipe close to the liquid storage cylinder is sleeved with a splash-proof annular plate, and the splash-proof annular plate is positioned above the inlet of the liquid storage cylinder.
Preferably, a core holding cavity is formed in the core holding unit, a core body is arranged in the core holding cavity, the sealing heads are screwed into the two sides of the core holding cavity, axial flow holes communicated with the core holding cavity are formed in the sealing heads, the displacement fluid inlet pipe is communicated with the permeate pipe through the axial flow holes, and one side, close to each other, of the two sealing heads is attached to the core body.
Preferably, the outer end of the seal head is fixedly sleeved with a sealing cover, the sealing cover seals the joint of the seal head and the core holder, and the sealing cover is installed on the core holder through a socket welding flange.
Preferably, the inner wall in rock core centre gripping chamber is seted up flutedly, and has inlayed in the recess and have the heat conduction silica gel piece, the heat conduction silica gel piece pastes in the surface of rock core body.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) this compact gas rock core displacement device, high-pressure piston intermediate container are managed the transport to displacement mechanism in with displacement fluid through displacement fluid, and displacement mechanism is established ties by three rock core holder and is formed, consequently can acquire the pressure differential and the flow of every rock core holder through a displacement experiment to can obtain the permeability of every rock core body through calculating, with the length consuming time of shortening the experiment, displacement is efficient.
(2) This compact gas rock core displacement device can arrange displacement mechanism in the thermostat and carry out the heat supply during displacement experiment, and heat conduction silica gel piece transmits the heat, makes being heated of rock core body even more quick to improve heat conduction rate, help the permeability of rock core body to detect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure determination mechanism of the present invention;
FIG. 3 is a cross-sectional view of the structural core holder of the present invention;
fig. 4 is the schematic diagram of the utility model discloses after structure rock core body has been put.
In the figure: 1. a core holder; 101. a core body; 102. sealing the end; 103. an axial flow bore; 2. putting the displacement fluid into a pipe; 201. a control valve a; 3. a high pressure piston intermediate vessel; 4. a permeate tube; 401. a control valve b; 5. a liquid storage cylinder; 6. precision electronic scales; 7. a pressure sensor; 8. a splash-proof ring plate; 9. a sealing cover; 10. socket welding a flange; 11. a heat-conducting silica gel sheet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides the following embodiments:
example one
The utility model provides a compact gas rock core displacement device, includes displacement mechanism and survey mechanism, and displacement mechanism comprises three rock core holder 1 of establishing ties, and the entrance of three rock core holder 1 is connected with the displacement fluid that is used for the displacement fluid to pour into and manages 2, and the displacement fluid is gone into and still is external to have the high pressure piston intermediate container 3 that is used for carrying the displacement fluid on managing 2, and the exit of three rock core holder 1 is connected with permeate liquid pipe 4, and survey mechanism is connected to the other end of permeate liquid pipe 4.
Further, survey mechanism includes liquid storage cylinder 5 and precision electronic scale 6, and precision electronic scale 6 level is put, and liquid storage cylinder 5 places in the top of precision electronic scale 6, and permeate pipe 4 keeps away from the one end of rock core holder 1 and extends to in the liquid storage cylinder 5.
Further, a pressure sensor 7 is installed at the outlet of the core holder 1, a control valve a201 is installed on the displacement fluid inlet pipe 2, and a control valve b401 is installed on each permeate pipe 4.
Furthermore, permeate pipe 4 is close to the one end surface cover of liquid storage cylinder 5 has splashproof crown plate 8, and splashproof crown plate 8 is located the top of 5 entrances of liquid storage cylinder, takes place the spill when avoiding the fluid to flow into in the liquid storage cylinder 5, safe and reliable.
The specific implementation manner of this embodiment is: the high-pressure piston type middle container 3 conveys the displacement fluid into the displacement mechanism through the displacement fluid inlet pipe 2, the displacement mechanism is formed by connecting three core holders 1 in series, so that the pressure difference and the flow of each core holder 1 can be obtained through one displacement experiment, the permeability of each core body 101 can be obtained through calculation, the experiment time is shortened, and the displacement efficiency is high.
Example two
The utility model provides a compact gas rock core displacement device, includes displacement mechanism and survey mechanism, and displacement mechanism comprises three rock core holder 1 of establishing ties, and the entrance of three rock core holder 1 is connected with the displacement fluid that is used for the displacement fluid to pour into and manages 2, and the displacement fluid is gone into and still is external to have the high pressure piston intermediate container 3 that is used for carrying the displacement fluid on managing 2, and the exit of three rock core holder 1 is connected with permeate liquid pipe 4, and survey mechanism is connected to the other end of permeate liquid pipe 4. The measuring mechanism comprises a liquid storage cylinder 5 and an electronic precision scale 6, the electronic precision scale 6 is horizontally arranged, the liquid storage cylinder 5 is placed at the top of the electronic precision scale 6, and one end, far away from the rock core holder 1, of the permeate pipe 4 extends into the liquid storage cylinder 5. And a pressure sensor 7 is also installed at the outlet of the core holder 1, a control valve a201 is installed on the displacement fluid inlet pipe 2, and a control valve b401 is installed on each permeation fluid pipe 4. The surface of one end of permeate liquid pipe 4 that is close to liquid storage cylinder 5 overlaps has splashproof crown plate 8, and splashproof crown plate 8 is located the top of 5 entrances of liquid storage cylinder.
The difference from the first embodiment is that the following contents are also included:
a core holding cavity is formed in the core holding unit 1, a core body 101 is arranged in the core holding cavity, seal heads 102 are screwed into two sides of the core holding cavity, axial flow holes 103 communicated with the core holding cavity are formed in the seal heads 102, the displacement fluid inlet pipe 2 is communicated with the permeate pipe 4 through the axial flow holes 103, and one side, close to each other, of the two seal heads 102 is attached to the core body 101.
Furthermore, the outer end of the seal head 102 is fixedly sleeved with a sealing cover 9, the sealing cover 9 seals the connection part between the seal head 102 and the core holder 1, and the sealing cover 9 is installed on the core holder 1 through a socket welding flange 10, so that the seal head 102 is convenient to disassemble and assemble, and the sealing performance of the seal head 102 during installation is improved.
Furthermore, the inner wall in rock core centre gripping chamber is seted up flutedly, and is inlayed in the recess and has had heat conduction silica gel piece 11, and heat conduction silica gel piece 11 pastes in the surface of rock core body 101, improves heat transfer efficiency.
In this embodiment: can place displacement mechanism in the thermostat heat supply during displacement experiment, heat conduction silica gel piece 11 transmits the heat, makes being heated of rock core body 101 even more fast to improve heat conduction rate, help the permeability of rock core body 101 to detect.
Those not described in detail in this specification are well within the skill of the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a compact gas rock core displacement device, includes displacement mechanism and survey mechanism, its characterized in that: the displacement mechanism is composed of three core holders (1) connected in series, a displacement fluid inlet pipe (2) used for injecting displacement fluid is connected to the inlet of each core holder (1), a high-pressure piston type middle container (3) used for conveying the displacement fluid is further connected to the displacement fluid inlet pipe (2) in an external mode, a permeate pipe (4) is connected to the outlet of each core holder (1), and the other end of each permeate pipe (4) is connected with the measuring mechanism.
2. The tight gas core displacement device according to claim 1, wherein: the measuring mechanism comprises a liquid storage cylinder (5) and an electronic precision scale (6), the electronic precision scale (6) is horizontally arranged, the liquid storage cylinder (5) is placed at the top of the electronic precision scale (6), and one end, far away from the rock core holder (1), of the seepage pipe (4) extends into the liquid storage cylinder (5).
3. The tight gas core displacement device according to claim 1, wherein: and a pressure sensor (7) is further installed at an outlet of each core holder (1), a control valve a (201) is installed on the displacement fluid inlet pipe (2), and a control valve b (401) is installed on each permeation liquid pipe (4).
4. The tight gas core displacement device according to claim 2, characterized in that: permeate liquid pipe (4) one end surface cover that is close to liquid storage cylinder (5) has splashproof crown plate (8), and splashproof crown plate (8) are located the top of liquid storage cylinder (5) entrance.
5. The tight gas core displacement device according to claim 1, wherein: a core clamping cavity is formed in the core clamping unit (1), a core body (101) is arranged in the core clamping cavity, seal heads (102) are screwed into two sides of the core clamping cavity, axial flow holes (103) communicated with the core clamping cavity are formed in the seal heads (102), the flooding fluid inlet pipe (2) and the seepage fluid pipe (4) are communicated through the axial flow holes (103), and one side, close to each other, of the two seal heads (102) is attached to the core body (101).
6. The tight gas core displacement device according to claim 5, wherein: the outer end of the seal head (102) is fixedly sleeved with a seal cover (9), the seal cover (9) seals the joint of the seal head (102) and the core holder (1), and the seal cover (9) is installed on the core holder (1) through a socket welding flange (10).
7. The tight gas core displacement device according to claim 6, wherein: the inner wall in rock core centre gripping chamber is seted up flutedly, and has inlayed in the recess and have heat conduction silica gel piece (11), heat conduction silica gel piece (11) paste in the surface of rock core body (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220477158.8U CN216847735U (en) | 2022-03-07 | 2022-03-07 | Compact gas core displacement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220477158.8U CN216847735U (en) | 2022-03-07 | 2022-03-07 | Compact gas core displacement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216847735U true CN216847735U (en) | 2022-06-28 |
Family
ID=82095088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220477158.8U Expired - Fee Related CN216847735U (en) | 2022-03-07 | 2022-03-07 | Compact gas core displacement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216847735U (en) |
-
2022
- 2022-03-07 CN CN202220477158.8U patent/CN216847735U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220628 |