CN209908478U - Baffle type underground foaming device - Google Patents
Baffle type underground foaming device Download PDFInfo
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- CN209908478U CN209908478U CN201822244161.1U CN201822244161U CN209908478U CN 209908478 U CN209908478 U CN 209908478U CN 201822244161 U CN201822244161 U CN 201822244161U CN 209908478 U CN209908478 U CN 209908478U
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- baffle
- wall
- central body
- foamer
- inner tube
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- 238000005187 foaming Methods 0.000 title abstract description 20
- 239000012530 fluid Substances 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 239000006260 foam Substances 0.000 abstract description 31
- 238000002156 mixing Methods 0.000 abstract description 10
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a baffle formula is frother in pit, include: a central body; the outer tube is coaxially sleeved outside the center body at intervals, a plurality of gas inlets are formed in the outer wall of one end of the outer tube, a plurality of first baffle groups and a plurality of second baffle groups are arranged between the outer tube and the center body at intervals, one second baffle group is arranged between every two adjacent first baffle groups, one end of each first baffle group is provided with a first overflowing channel, and the other end of each second baffle group is provided with a second overflowing channel; the flow distribution plate is fixedly arranged in one end of the outer pipe, a plurality of axial through holes are formed in the flow distribution plate, and the gas inlet is located at the downstream of the flow distribution plate. The beneficial effects of the utility model are that, the embodiment of the utility model provides a can make fluid foaming solution and gaseous intensive mixing, collision and extrusion, have the average size that forms the foam little, the size distribution is even and the advantage that mixing efficiency is high to foaming efficiency is higher, and the foam is small is difficult to break.
Description
Technical Field
The utility model relates to a foamer field in the oil recovery engineering technique, concretely relates to baffle formula is foamer in pit.
Background
The application range of the foam in oil displacement of the oil field is wider, and the foam is mainly applied to foam drilling, foam well washing, foam sand washing, foam cement well cementation, foam fracturing and acidizing, foam oil testing, foam profile control and water plugging and the like.
At present, the foam generators commonly used at home and abroad comprise a stirring type foam generator, a turbine type foam generator, a spiral type foam generator, a pore type foam generator, a concentric tube type foam generator, a baffle type foam generator and the like. Foaming in the oil layer is more frequent, and a certain oil increasing effect is obtained. However, the situation that foam is used outside an oil layer sometimes occurs, and meanwhile, due to the fact that most of the foam has certain corrosiveness on a shaft, a tool for foaming underground is needed to achieve the effect of measure oil increment, meanwhile, the corrosion to the shaft is reduced, and the difficulty of oil well operation is not increased.
Therefore, there is a need to provide a new foam generator that overcomes the above-mentioned drawbacks.
SUMMERY OF THE UTILITY MODEL
The utility model provides a baffle type underground foaming device to achieve the effect of measure oil increase.
The utility model provides a technical scheme that its technical problem adopted is: a baffled downhole foamer comprising: a central body; the outer tube is coaxially sleeved outside the center body at intervals, a plurality of gas inlets are formed in the outer wall of one end of the outer tube, a plurality of first baffle groups and a plurality of second baffle groups are arranged between the outer tube and the center body at intervals, one second baffle group is arranged between every two adjacent first baffle groups, one end of each first baffle group is provided with a first overflowing channel, and the other end of each second baffle group is provided with a second overflowing channel; the flow distribution plate is fixedly arranged in one end of the outer pipe, a plurality of axial through holes are formed in the flow distribution plate, and the gas inlet is located at the downstream of the flow distribution plate.
Furthermore, the baffle type underground foaming device further comprises an inner pipe, the inner pipe is coaxially sleeved outside the central body at intervals and is positioned in the outer pipe, an accommodating space is formed between every two adjacent first baffle groups and every two adjacent second baffle groups, a plurality of fluid through holes are uniformly distributed at intervals on the pipe wall of the inner pipe, and each accommodating space is correspondingly communicated with one fluid through hole.
Furthermore, the first baffle group comprises a first baffle and a third baffle, two ends of the first baffle are respectively connected with the outer wall of the central body and the outer wall of the inner pipe, the position of the third baffle corresponds to that of the first baffle, two ends of the third baffle are respectively connected with the outer wall of the inner pipe and the inner wall of the outer pipe, and the first baffle is provided with a plurality of axial circulation holes to form a first overflowing channel.
Furthermore, the second baffle group comprises a second baffle and a fourth baffle, two ends of the second baffle are respectively connected with the outer wall of the central body and the inner wall of the inner tube, the position of the fourth baffle corresponds to that of the second baffle, one end of the fourth baffle is connected with the outer wall of the inner tube, and the other end of the fourth baffle and the inner wall of the outer tube are arranged at intervals to form a second overflowing channel.
Furthermore, compression rings are arranged in two ends of the inner tube, two ends of the central body are connected with the corresponding compression rings respectively, and each compression ring is provided with an axial liquid through hole.
Further, one end of the inner pipe, which is far away from the valve plate, is provided with a plug.
Furthermore, one end of the outer pipe is integrally provided with a valve body, and the other end of the outer pipe is externally provided with a lower joint.
Further, the baffle type downhole foamer also comprises a setting device which is sleeved outside the outer pipe and is positioned at the downstream of the gas inlet.
The beneficial effects of the utility model are that, the embodiment of the utility model provides a can make fluid foaming solution and gaseous intensive mixing, collision and extrusion, have the average size that forms the foam little, the size distribution is even and the advantage that mixing efficiency is high to foaming efficiency is higher, and the foam is small is difficult to break.
Further, the embodiment of the utility model provides a foam that produces is slight stable, can reduce the corruption to the pit shaft, reaches the displacement of reservoir oil effect, does not increase the construction degree of difficulty again simultaneously.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Reference numbers in the figures: 1. a valve body; 2. setting a device; 3. a valve plate; 51. a first baffle plate; 52. a second baffle; 53. a third baffle plate; 54. a fourth baffle; 7. plugging with a thread; 8. a lower joint; 9. a central body; 10. an inner tube; 11. An outer tube; 12. pressing a ring; 91. a fluid through-hole; 92. an axial flow aperture; 93. a gas inlet.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, the embodiment of the present invention provides a baffle type down-hole foamer, which comprises a central body 9, an outer tube 11 and a port plate 3. The coaxial spacer sleeve of outer tube 11 establishes outside the center body 9, is provided with a plurality of gas inlets 93 on the one end outer wall of outer tube 11, and the interval is provided with a plurality of first baffle groups and a plurality of second baffle group between outer tube 11 and the center body 9, is provided with a second baffle group between two adjacent first baffle groups, and the one end of every first baffle group is provided with the first passageway that overflows, and the other end of every second baffle group is provided with the second and overflows the passageway. The port plate 3 is fixedly arranged in one end of the outer tube 11, a plurality of axial through holes are arranged on the port plate 3, and the gas inlet 93 is positioned at the downstream of the port plate 3.
The embodiment of the utility model provides a can make fluid foaming solution and gaseous intensive mixing, collision and extrusion, have the average size that forms the foam little, the size distribution is even and the advantage that mixing efficiency is high to foaming efficiency is higher, and the foam is small to be difficult to break.
Further, the embodiment of the utility model provides a foam that produces is slight stable, can reduce the corruption to the pit shaft, reaches the displacement of reservoir oil effect, does not increase the construction degree of difficulty again simultaneously.
The embodiment of the utility model provides an in 11 one ends an organic whole of outer tube is provided with valve body 1, the other end of outer tube 11 is provided with lower clutch 8 outward. The valve body 1 is a foaming liquid inlet, and the gas inlet 93 is used for injecting air into the outer tube 11. The outer diameter of the upper part of the valve body 1 is larger and is provided with internal threads, the outer diameter of the lower part of the outer pipe 11 is smaller and is provided with external threads at the end so as to be conveniently connected with other downhole tools.
Specifically, the port plate 3 is a cylindrical body and has a plurality of axial through holes therein parallel to the central axis, so as to change the liquid from a one-phase fluid to a multi-phase fluid for convenient mixing with air or other liquids or gases; the valve plate 3 is connected in the valve body 1 through a fastening pin and is close to the upper thread part of the valve body 1.
The baffle type underground foaming device further comprises an inner pipe 10, the inner pipe 10 is coaxially sleeved outside the central body 9 at intervals and is positioned in the outer pipe 11, an accommodating space is formed between every two adjacent first baffle groups and every two adjacent second baffle groups, a plurality of fluid through holes 91 are formed in the pipe wall of the inner pipe 10 at intervals, and each accommodating space is correspondingly communicated with one fluid through hole 91.
The first baffle group comprises a first baffle 51 and a third baffle 53, two ends of the first baffle 51 are respectively connected with the outer wall of the central body 9 and the outer wall of the inner tube 10, the position of the third baffle 53 corresponds to the position of the first baffle 51, two ends of the third baffle 53 are respectively connected with the outer wall of the inner tube 10 and the inner wall of the outer tube 11, and the first baffle 51 is provided with a plurality of axial through holes 92 to form a first overflowing channel.
The second baffle group comprises a second baffle 52 and a fourth baffle 54, two ends of the second baffle 52 are respectively connected with the outer wall of the central body 9 and the inner wall of the inner tube 10, the position of the fourth baffle 54 corresponds to the position of the second baffle 52, one end of the fourth baffle 54 is connected with the outer wall of the inner tube 10, and the other end of the fourth baffle 54 is arranged at an interval with the inner wall of the outer tube 11 and forms a second overflowing channel.
In the embodiment of the present invention, the axial through hole 92 is disposed on the first baffle 51, and the other end of the fourth baffle 54 and the inner wall of the outer tube 11 form a second flow passage, as shown in fig. 1, when the fluid flows, the fluid flows into the accommodating space inside the inner tube 10 through the axial through hole 92, and then flows into the accommodating space outside the inner tube 10 through the fluid through hole disposed on the inner tube 10. At the same time, due to the second fluid passage there, fluid can enter the adjacent receiving space through the second flow channel and continue the above-mentioned circulation process.
Preferably, the inner tube 10 is provided with clamping rings 12 in both ends, the central body 9 is connected to the respective clamping rings 12 at both ends, and each clamping ring 12 is provided with an axial liquid through hole. The press ring 12 is located inside the lower joint 8 and is in contact with the inner contraction surface of the lower joint 8, the press ring 12 is a circular body, the press ring 12 is axially communicated with liquid outside, and the press ring 12 is connected with the lower joint 8 through a fastening pin.
It should be noted that the end of the inner tube 10 away from the port plate 3 is provided with a plug 7. The plug 7 abuts the central body 9 and is located between the pressure ring 12 and the central body 9.
Preferably, the baffle type downhole foamer further comprises a setting device 2 which is sleeved outside the outer pipe 11 and is positioned at the downstream of the gas inlet 93, and the spacer 4 is connected with the valve body 1.
This foaming ware of during operation is along with the tubular column down behind the target position, makes the setting ware 2 set seal, and the foaming liquid of squeezing into by ground originally passes through the upper portion of valve body 1, flows through valve plate 3 and becomes stranded fluid by a fluid, and further squeezes into gas through gas inlet 93 and after the inside preliminary mixing foaming of valve body 1, enters into a plurality of first baffle groups and a plurality of second baffle group department through the axial liquid through-hole of clamping ring 12. Through the action of the first baffle groups and the second baffle groups (see the description above, which is not described herein), impact foaming is performed, and finally the foam is injected into the underground target reservoir through the lower joint 8.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: the embodiment of the utility model provides a can make fluid foaming solution and gaseous intensive mixing, collision and extrusion, have the average size that forms the foam little, the size distribution is even and the advantage that mixing efficiency is high to foaming efficiency is higher, and the foam is small to be difficult to break.
Further, the embodiment of the utility model provides a foam that produces is slight stable, can reduce the corruption to the pit shaft, reaches the displacement of reservoir oil effect, does not increase the construction degree of difficulty again simultaneously.
The above description is only for the specific embodiments of the present invention, and the scope of the present invention can not be limited by the embodiments, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should still belong to the scope covered by the present patent. In addition, the utility model provides an between technical feature and the technical feature, between technical feature and the technical scheme, all can the independent assortment use between technical scheme and the technical scheme.
Claims (8)
1. A baffled downhole foamer comprising:
a central body (9);
the gas distribution device comprises an outer pipe (11), a central body (9) and a plurality of gas inlets (93) are coaxially and alternately sleeved outside the central body (9), a plurality of first baffle groups and a plurality of second baffle groups are arranged on the outer wall of one end of the outer pipe (11) at intervals between the outer pipe (11) and the central body (9), one second baffle group is arranged between every two adjacent first baffle groups, a first overflowing channel is arranged at one end of each first baffle group, and a second overflowing channel is arranged at the other end of each second baffle group;
the flow distribution plate (3) is fixedly arranged in one end of the outer pipe (11), a plurality of axial through holes are formed in the flow distribution plate (3), and the gas inlet (93) is located at the downstream of the flow distribution plate (3).
2. The baffled downhole foamer of claim 1 further comprising an inner tube (10), wherein the inner tube (10) is coaxially and alternately sleeved outside the central body (9) and located inside the outer tube (11), a receiving space is formed between adjacent first baffle groups and adjacent second baffle groups, a plurality of fluid through holes (91) are uniformly arranged at intervals on the wall of the inner tube (10), and each receiving space is correspondingly communicated with one fluid through hole (91).
3. The baffled downhole foamer of claim 2, wherein the first baffle group comprises a first baffle (51) and a third baffle (53), both ends of the first baffle (51) are respectively connected with the outer wall of the central body (9) and the outer wall of the inner tube (10), the position of the third baffle (53) corresponds to the position of the first baffle (51), both ends of the third baffle (53) are respectively connected with the outer wall of the inner tube (10) and the inner wall of the outer tube (11), and a plurality of axial flow holes (92) are arranged on the first baffle (51) to form the first flow passage.
4. The baffled downhole foamer of claim 3, wherein said second baffle set comprises a second baffle (52) and a fourth baffle (54), both ends of the second baffle (52) are connected to the outer wall of the central body (9) and the inner wall of the inner tube (10), respectively, the position of the fourth baffle (54) corresponds to the position of the second baffle (52), one end of the fourth baffle (54) is connected to the outer wall of the inner tube (10), and the other end of the fourth baffle (54) is spaced from the inner wall of the outer tube (11) and forms said second through-flow channel.
5. A baffled downhole foamer as claimed in claim 2, characterised in that compression rings (12) are provided in both ends of the inner tube (10), that both ends of the central body (9) are connected to respective compression rings (12), and that each compression ring (12) is provided with an axial liquid through hole.
6. A baffled downhole foamer as claimed in claim 5, characterised in that the end of the inner tube (10) remote from the port plate (3) is provided with a plug (7).
7. A baffled downhole foamer as claimed in claim 1, characterised in that one end of the outer tube (11) is integrally provided with the valve body (1), and the other end of the outer tube (11) is externally provided with a lower joint (8).
8. A baffled downhole foamer as defined in claim 1, which further comprises a setting device (2) which is sleeved outside the outer tube (11) and downstream of the gas inlet (93).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822244161.1U CN209908478U (en) | 2018-12-28 | 2018-12-28 | Baffle type underground foaming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822244161.1U CN209908478U (en) | 2018-12-28 | 2018-12-28 | Baffle type underground foaming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209908478U true CN209908478U (en) | 2020-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822244161.1U Active CN209908478U (en) | 2018-12-28 | 2018-12-28 | Baffle type underground foaming device |
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| Country | Link |
|---|---|
| CN (1) | CN209908478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377164A (en) * | 2020-11-16 | 2021-02-19 | 东北石油大学 | Foaming mechanism, high-energy gas foam fracturing device and process |
-
2018
- 2018-12-28 CN CN201822244161.1U patent/CN209908478U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377164A (en) * | 2020-11-16 | 2021-02-19 | 东北石油大学 | Foaming mechanism, high-energy gas foam fracturing device and process |
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