CN205172546U - Concentric pipe type foam generator - Google Patents
Concentric pipe type foam generator Download PDFInfo
- Publication number
- CN205172546U CN205172546U CN201520905759.4U CN201520905759U CN205172546U CN 205172546 U CN205172546 U CN 205172546U CN 201520905759 U CN201520905759 U CN 201520905759U CN 205172546 U CN205172546 U CN 205172546U
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- CN
- China
- Prior art keywords
- pipe
- outer spiral
- top connection
- drain pipe
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a concentric pipe type foam generator, including upper and lower joint, the drain pipe, inside and outside spiral pipe, tube with internal screw left end and top connection are connected just and are communicated with each other with the air inlet of top connection, the drain pipe right -hand member is connected with the lower clutch, is connected through oil pipe festival hoop between tube with internal screw and the drain pipe, and tube with internal screw and drain pipe two connect, and ends are closed each other not to switch on, tube with internal screw periphery cover is equipped with outer spiral pipe, and upper and lower joint is connected respectively at outer spiral pipe both ends, be equipped with the cavity of annular space between outer spiral pipe of intercommunication and the tube with internal screw in the top connection, this cavity communicates with each other with the external world through the inlet, the lateral wall of drain pipe is equipped with the through -hole of annular space between outer spiral pipe of intercommunication and the tube with internal screw, and the liquid outlet of drain pipe and lower clutch right -hand member communicates with each other, it has the fumarole to open on tube with internal screw's the lateral wall. The utility model overcomes in the site operation, it is direct mixed with the fracturing fluid to depend merely on pump income carbon dioxide, mixes the not good problem of effect, and the foam of production is even, does not gather.
Description
Technical field
The utility model belongs to oil, gas well fracturing technical field, is specifically related to a kind of concentric pipe type foam generator, for oil, gas well carbon dioxide pressure break.
Background technology
At present, oil, gas well many employings carbon dioxide pressure break, can greatly reduce the amount of liquid entering stratum, carbon dioxide can play the effect of the row of helping.But at the scene in construction, there is no agitation mixer, depend merely on that high pressure pump truck is simultaneously direct to be pumped into pipeline by liquid carbon dioxide and fracturing fluid and directly mix, two kinds of materials flow in pipeline high speed, be difficult to accomplish Homogeneous phase mixing, whole liquid take grittiness and viscosity effect inequality, in construction, hydraulic slip is serious, require high to operational discharge capacity, difficulty is large to keep the stability operability of foam to require.Therefore, at the scene in construction, depend merely on and pump into carbon dioxide and directly mix with fracturing fluid, mixed effect is not good.
Utility model content
The purpose of this utility model overcomes in construction at the scene, depend merely on and pump into carbon dioxide and directly mix with fracturing fluid, the problem that mixed effect is not good, one is provided to be fixedly mounted on fracture manifold, the concentric pipe type foam generator device of generation and sparging carbon dioxide foam, for oil, gas well carbon dioxide pressure break.
For this reason, the utility model provides a kind of concentric pipe type foam generator, its technical scheme is: concentric pipe type foam generator, comprise top connection, inner helix pipe that outer spiral tube that lower contact, drain pipe, inner surface are provided with reducing-flow structure and external surface are provided with reducing-flow structure, wherein the left end of inner helix pipe is connected with top connection and is communicated by the air inlet port of inlet channel with top connection left end; The right-hand member of described drain pipe is connected with lower contact; Be connected by oil pipe joint hoop between inner helix pipe with drain pipe, and two connection ends of inner helix pipe and drain pipe close not conducting each other; The periphery of inner helix pipe is arranged with outer spiral tube, and the two ends of outer spiral tube connect top connection and lower contact respectively; Described top connection is provided with the chamber being communicated with annular space between outer spiral tube and inner helix pipe, and this chamber is communicated with the external world by inlet; The sidewall of described drain pipe is provided with the through hole being communicated with annular space between outer spiral tube and inner helix pipe, and drain pipe communicates with the liquid outlet of lower contact right-hand member; The sidewall of described inner helix pipe has fumarole.
The periphery of above-mentioned outer spiral tube is also arranged with protective casing, and the left end of this protective casing is connected with top connection by collar one, and the right-hand member of protective casing is connected with lower contact by collar two, is fixedly connected with between outer spiral tube with protective casing.
Above-mentioned outer spiral tube with the concrete mode be fixedly connected with between protective casing is: weld together between the two ends of outer spiral tube and the two ends of protective casing.
Above-mentioned collar one with between top connection and protective casing, collar two is threaded with all adopting between lower contact and protective casing.
Chamber specifically annular compartment set in above-mentioned top connection, this annular compartment is surrounded on the periphery of described inlet channel.
Above-mentioned oil pipe joint hoop is threaded with adopting between inner helix pipe and drain pipe.
Above-mentioned reducing-flow structure is spiral steel disc.
The beneficial effects of the utility model: the utility model overcomes in construction at the scene, depend merely on and pump into carbon dioxide and directly mix with fracturing fluid, the problem that mixed effect is not good, providing one is fixedly mounted on fracture manifold, the concentric pipe type foam generator device of generation and sparging carbon dioxide foam, is conducive to oil, gas well carbon dioxide pressure break.During work, gas is at inner central tube, and liquid, at exterior central tube, relies on aperture principle, and auger effect, produces foam, relends the choked flow effect helping drain pipe, impels foam even, does not assemble.
Below with reference to accompanying drawing, the utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is concentric pipe type foam generator structural representation.
Description of reference numerals: 1, top connection; 2, collar one; 3, protective casing; 4, outer spiral tube; 5, inner helix pipe; 6, oil pipe joint hoop; 7, drain pipe; 8, collar two; 9, lower contact; 10, air inlet port; 11, inlet channel; 12, chamber; 13, inlet; 14, through hole; 15, liquid outlet; 16, spiral steel disc.
Detailed description of the invention
Embodiment 1:
As shown in Figure 1, the utility model provides a kind of concentric pipe type foam generator, comprise top connection 1, inner helix pipe 5 that outer spiral tube 4 that lower contact 9, drain pipe 7, inner surface are provided with reducing-flow structure and external surface are provided with reducing-flow structure, wherein the left end of inner helix pipe 5 is connected with top connection 1 and is communicated by the air inlet port 10 of inlet channel 11 with top connection 1 left end; The right-hand member of described drain pipe 7 is connected with lower contact 9; Save hoop 6 by oil pipe between inner helix pipe 5 with drain pipe 7 to be threaded, and two connection ends of inner helix pipe 5 and drain pipe 7 close not conducting each other; The periphery of inner helix pipe 5 is arranged with outer spiral tube 4, and the two ends of outer spiral tube 4 connect top connection 1 and lower contact 9 respectively; Described top connection 1 is provided with the chamber 12 being communicated with annular space between outer spiral tube 4 and inner helix pipe 5, and this chamber 12 is communicated with the external world by inlet 13; The sidewall of described drain pipe 7 is provided with the through hole 14 being communicated with annular space between outer spiral tube 4 and inner helix pipe 5, and drain pipe 7 communicates with the liquid outlet 15 of lower contact 9 right-hand member; The sidewall of described inner helix pipe 5 has fumarole.Above-mentioned reducing-flow structure is specially spiral steel disc 16.The present embodiment is made up of the two tubes (i.e. inner helix pipe 5 and outer spiral tube 4) of the different-diameter mutually laid with one heart.Central tube (i.e. inner helix pipe 5), with some eyelets, is welded with spiral steel disc between two tubes annular space respectively, in addition the choked flow effect of drain pipe, and the foam of formation is even, does not assemble.
This concentric pipe type foam generator is used for oil, gas well carbon dioxide pressure break, is that one is fixedly mounted on fracture manifold, the device of generation and sparging carbon dioxide foam.During work, gas is at inner central tube (i.e. inner helix pipe 5), and liquid is at exterior central tube (i.e. outer spiral tube 4), rely on aperture principle, and the auger effect of reducing-flow structure in pipe, produce foam, relend the choked flow effect helping drain pipe, impel foam even, do not assemble.
Embodiment 2:
On the basis of embodiment 1; the periphery of described outer spiral tube 4 is also arranged with protective casing 3; the left end of this protective casing 3 is connected with top connection 1 by collar 1; the right-hand member of protective casing 3 is connected with lower contact 9 by collar 28, and the mode by welding between outer spiral tube 4 with protective casing 3 is fixedly connected with.The protective casing 3 of this generator outside specifically uses 7 cun of sleeve pipes, and because pressure during carbon dioxide pressure break is high, risk is high, and therefore, protective casing effectively can ensure the security reliability of generator.Above-mentioned collar 1 with between top connection 1 and protective casing 3, collar 28 is threaded with specifically all adopting between lower contact 9 and protective casing 3.Chamber 12 specifically annular compartment set in described top connection 1, this annular compartment is surrounded on the periphery of described inlet channel 11.Collar 1 and collar 28 can adopt 7 " collars; Oil pipe joint hoop can adopt 23/8, and " oil pipe joint binds round.
Operating principle of the present utility model: when carbon dioxide is by entering inside and outside thread mixing chamber with the central tube (i.e. inner helix pipe) of some eyelets and the liquid of generator inlet, foam mixing liquid is by the stirring action of inside and outside helix tube inner screwy fin, abundant mixing, form mix-froth, spray from liquid outlet.During the construction of carbon dioxide pressure break, the air inlet port of concentric pipe type foam generator is connected with carbon dioxide tank vehicle by manifold, pump truck, inlet is connected with water pot by manifold, pump truck, carbon dioxide and fracturing fluid are pressurizeed by pump truck and enter foam maker, under the mixing, stirring action of generator, form carbon dioxide foaming, spray from foam outlet (i.e. liquid outlet 15), be connected with well head by manifold, pump truck, pump Injection Well, carries out pressing crack construction again.
The utility model mainly solves liquid carbon dioxide and of the fracturing fluid mixed problem, is introduced by carbon dioxide to carry out dispersed in generator, makes two kinds of liquid have contact surface large as far as possible, and utilizes screw mechanism to be fully uniformly mixed.The utility model overcomes in construction at the scene, depend merely on and pump into carbon dioxide and directly mix with fracturing fluid, the problem that mixed effect is not good, what provide is thisly fixedly mounted on fracture manifold, the concentric pipe type foam generator device of generation and sparging carbon dioxide foam, is conducive to oil, gas well carbon dioxide pressure break.During work, gas is at inner central tube, and liquid, at exterior central tube, relies on aperture principle, and auger effect, produces foam, relends the choked flow effect helping drain pipe, impels foam even, does not assemble.
Following table content is concentric tube foam maker technical data of the present utility model:
Table: concentric tube foam maker technical data
The part do not described in detail in present embodiment belongs to the known conventional means of the industry, does not describe one by one here.More than exemplifying is only illustrate of the present utility model, does not form the restriction to protection domain of the present utility model, everyly all belongs within protection domain of the present utility model with the same or analogous design of the utility model.
Claims (7)
1. concentric pipe type foam generator, it is characterized in that: comprise top connection (1), inner helix pipe (5) that outer spiral tube (4) that lower contact (9), drain pipe (7), inner surface are provided with reducing-flow structure and external surface are provided with reducing-flow structure, wherein the left end of inner helix pipe (5) is connected with top connection (1) and is communicated with the air inlet port (10) of top connection (1) left end by inlet channel (11); The right-hand member of described drain pipe (7) is connected with lower contact (9); Saved by oil pipe between inner helix pipe (5) with drain pipe (7) and bind round (6) and be connected, and two connection ends of inner helix pipe (5) and drain pipe (7) close not conducting each other; The periphery of inner helix pipe (5) is arranged with outer spiral tube (4), and the two ends of outer spiral tube (4) connect top connection (1) and lower contact (9) respectively; Described top connection (1) is provided with the chamber (12) being communicated with annular space between outer spiral tube (4) and inner helix pipe (5), and this chamber (12) is communicated with the external world by inlet (13); The sidewall of described drain pipe (7) is provided with the through hole (14) being communicated with annular space between outer spiral tube (4) and inner helix pipe (5), and drain pipe (7) communicates with the liquid outlet (15) of lower contact (9) right-hand member; The sidewall of described inner helix pipe (5) has fumarole.
2. concentric pipe type foam generator as claimed in claim 1; it is characterized in that: the periphery of described outer spiral tube (4) is also arranged with protective casing (3); the left end of this protective casing (3) is connected with top connection (1) by collar one (2); the right-hand member of protective casing (3) is connected with lower contact (9) by collar two (8), is fixedly connected with between outer spiral tube (4) with protective casing (3).
3. concentric pipe type foam generator as claimed in claim 2, is characterized in that: the concrete mode be fixedly connected with between described outer spiral tube (4) with protective casing (3) is: weld together between the two ends of outer spiral tube (4) and the two ends of protective casing (3).
4. concentric pipe type foam generator as claimed in claim 2, is characterized in that: described collar one (2) with between top connection (1) and protective casing (3), collar two (8) is threaded with all adopting between lower contact (9) and protective casing (3).
5. concentric pipe type foam generator as claimed in claim 1, is characterized in that: upper set chamber (12) the specifically annular compartment of described top connection (1), this annular compartment is surrounded on the periphery of described inlet channel (11).
6. concentric pipe type foam generator as claimed in claim 1, is characterized in that: described oil pipe joint hoop (6) is threaded with adopting between inner helix pipe (5) and drain pipe (7).
7. concentric pipe type foam generator as claimed in claim 1, is characterized in that: described reducing-flow structure is spiral steel disc (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520905759.4U CN205172546U (en) | 2015-11-16 | 2015-11-16 | Concentric pipe type foam generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520905759.4U CN205172546U (en) | 2015-11-16 | 2015-11-16 | Concentric pipe type foam generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205172546U true CN205172546U (en) | 2016-04-20 |
Family
ID=55736549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520905759.4U Expired - Fee Related CN205172546U (en) | 2015-11-16 | 2015-11-16 | Concentric pipe type foam generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205172546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275445A (en) * | 2015-11-16 | 2016-01-27 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Concentric pipe type foam generator |
-
2015
- 2015-11-16 CN CN201520905759.4U patent/CN205172546U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275445A (en) * | 2015-11-16 | 2016-01-27 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Concentric pipe type foam generator |
| CN105275445B (en) * | 2015-11-16 | 2018-10-09 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Concentric pipe type foam generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160420 Termination date: 20211116 |