CN207004493U - A kind of non-mixed phase air water of low-permeability oil deposit hands over note fluctuation increasing injection device - Google Patents
A kind of non-mixed phase air water of low-permeability oil deposit hands over note fluctuation increasing injection device Download PDFInfo
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- CN207004493U CN207004493U CN201621366007.6U CN201621366007U CN207004493U CN 207004493 U CN207004493 U CN 207004493U CN 201621366007 U CN201621366007 U CN 201621366007U CN 207004493 U CN207004493 U CN 207004493U
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- injection
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- water injection
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Abstract
The utility model discloses a kind of non-mixed phase air water of low-permeability oil deposit to hand over note fluctuation increasing injection device, including low pressure valve, electrodynamic pump, the first valve, medicine storage tank, the second valve, driven high voltage dosing pump and ball-and-seat, distribution well and wellhead of water injection well, and connected between distribution well and wellhead of water injection well by high pressure water injection pipeline, the entrance of the medicine storage tank is fixed with pipeline, and the lower end of the wellhead of water injection well is socketed with water injection pipe, air injection pipe and surface pipe successively from the inside to the outside.The utility model is simple in construction, it is ingenious in design, it is easy to use, can be to injection increasing injection medicament at wellhead of water injection well, the injection pressure of wellhead of water injection well can be reduced, and it can realize that non-mixed phase air water hands over note, fluid injection fluctuation increasing injection and non-mixed phase gas foam anti-channeling work(transformation of energy under conditions of fixed tubular column, improve gas injection production efficiency.
Description
Technical field
Oil-Gas Field Development Engineering technical field is the utility model is related to, specially a kind of non-mixed phase air water of low-permeability oil deposit is handed over
Note fluctuation increasing injection device.
Background technology
Immiscible drive-gas displacement is that low permeability oil field one effectively improves recovery ratio and widely used development technique.But due to
The pore throat character feature difference of low permeability reservoir is big, based on the thin larynx of pore, surface area it is big, this causes the surface on solid-liquid phase interface
Effect, micro- capillarity, electrochemical action enhancing, and non-darcy flow feature is presented, start producing pressure differential so as to exist, cause
Immiscible drive-gas displacement initial stage of development easily produces the phenomenon of " injection pressure is high, and note does not enter ", simultaneously because oil gas viscosity differences and produce
Raw gas fingering phenomenon or low-permeability oil deposit itself anisotropism and existing microcrack are easily led when carrying out immiscible drive-gas displacement
Cause " has channeling " phenomenon.It is a kind of method for the raising recovery ratio for having much potentiality that non-mixed phase air water, which hands over note, is that low-permeability oil deposit is efficient
Exploitation provides new way.Non- mixed phase air water hands over note to reduce relative permeability and its flowing of gas phase due to water slug be present
Property, can the too early has channeling of mitigation of gases to a certain extent；Simultaneously as gas slug be present, water-oil mobility ratio is reduced, is added
Water drive swept volume coefficient.But low-permeability oil deposit is carried out also to be faced with problems with while non-mixed phase air water hands over note：
One side low-permeability oil ensconces initial stage of production gas injection pressure height or water injection pressure is high；On the other hand the phase may occur after mining
" has channeling " phenomenon, these problems cause non-mixed phase Water Alternate Gas injection exploitation to be difficult to reach preferable development effectiveness, for above-mentioned
Problem, spy propose that a kind of non-mixed phase air water of low-permeability oil deposit hands over note fluctuation increasing injection device.
Utility model content
The purpose of this utility model is that providing a kind of non-mixed phase air water of low-permeability oil deposit hands over note fluctuation increasing injection device,
To solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides following technical scheme：A kind of non-mixed phase air water of low-permeability oil deposit is handed over
Note fluctuation increasing injection device, including low pressure valve, electrodynamic pump, the first valve, medicine storage tank, the second valve, driven high voltage dosing
Pump, ball-and-seat, distribution well and wellhead of water injection well, the distribution well are connected between wellhead of water injection well by high pressure water injection pipeline, institute
The entrance for stating medicine storage tank is fixed with pipeline, and low pressure valve, electrodynamic pump and the first valve, the medicine storage tank are sequentially connected in series on pipeline
Outlet be fixed with tapping line, and the second valve, driven high voltage dosing pump and ball-and-seat are sequentially connected in series on tapping line, it is described
Tapping line connects with high pressure water injection pipeline, and the lower end of the wellhead of water injection well is socketed with water injection pipe, gas injection successively from the inside to the outside
Pipe and surface pipe, and water injection pipe connects with high pressure water injection pipeline, the side wall of the wellhead of water injection well is provided with air pump, and air pump
Connected by pipeline with air injection pipe, the lower end of the water injection pipe is provided with injection nozzle.
Preferably, the joint of the lateral wall of the surface pipe and wellhead of water injection well is provided with sealing cement filled cavity.
Preferably, the front end of the injection nozzle is provided with conical nozzle.
Preferably, preforation tunnel is installed in the side wall of the lower end of the air injection pipe.
Compared with prior art, the beneficial effects of the utility model are：A kind of non-mixed phase air water of low-permeability oil deposit hands over note ripple
Dynamic increasing injection device, it is simple in construction, it is ingenious in design, it is easy to use, can to injecting increasing injection medicament at wellhead of water injection well,
The injection pressure of wellhead of water injection well can be reduced, and can realize that non-mixed phase air water hands over note, fluid injection under conditions of fixed tubular column
Increasing injection and non-mixed phase gas foam anti-channeling work(transformation of energy are fluctuated, improves gas injection production efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1st, low pressure valve, 2, electrodynamic pump, 3, pipeline, the 4, first valve, 5, medicine storage tank, the 6, second valve, 7, electronic
High pressure dosing pump, 8, ball-and-seat, 9, distribution well, 10, wellhead of water injection well, 11, high pressure water injection pipeline, 12, tapping line, 13, note
Water pipe, 14, air injection pipe, 15, surface pipe, 16, air pump, 17, injection nozzle, 18, sealing cement filled cavity, 19, conical nozzle,
20th, preforation tunnel.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Referring to Fig. 1, the utility model provides a kind of technical scheme：A kind of non-mixed phase air water of low-permeability oil deposit hands over note fluctuation
Increasing injection device, including low pressure valve 1, electrodynamic pump 2, the first valve 4, medicine storage tank 5, the second valve 6, driven high voltage dosing pump
7th, ball-and-seat 8, distribution well 9 and wellhead of water injection well 10, high pressure water injection pipeline 11 is passed through between the distribution well 9 and wellhead of water injection well 10
Connection, the entrance of the medicine storage tank 5 is fixed with pipeline 3, and low pressure valve 1, the valve of electrodynamic pump 2 and first are sequentially connected in series on pipeline 3
Door 4, the outlet of the medicine storage tank 5 is fixed with tapping line 12, and the second valve 6, electronic height are sequentially connected in series on tapping line 12
Pressure dosing pump 7 and ball-and-seat 8, the tapping line 12 connect with high pressure water injection pipeline 11, the lower end of the wellhead of water injection well 10
It is socketed with water injection pipe 13, air injection pipe 14 and surface pipe 15 successively from the inside to the outside, and water injection pipe 13 connects with high pressure water injection pipeline 11
Logical, the side wall of the wellhead of water injection well 10 is provided with air pump 16, and air pump 16 is connected by pipeline with air injection pipe 14, the water filling
The lower end of pipe 13 is provided with injection nozzle 17, simple in construction, ingenious in design, easy to use, can be to injection at wellhead of water injection well 10
Increasing injection medicament, the injection pressure of wellhead of water injection well 10 can be reduced, and can be realized immiscible under conditions of fixed tubular column
Phase air water hands over note, fluid injection fluctuation increasing injection and non-mixed phase gas foam anti-channeling work(transformation of energy, improves gas injection production efficiency.
Specifically, the joint of the lateral wall of the surface pipe 15 and wellhead of water injection well 10 is provided with sealing cement filling
Chamber 18, preferably surface pipe 15 can be fixed and be sealed.
Specifically, the front end of the injection nozzle 17 is provided with conical nozzle 19, and note can be increased by conical nozzle 19
Speed when water, it can more smoothly carry out water filling.
Specifically, preforation tunnel 20 is installed in the side wall of the lower end of the air injection pipe 14, can more disperses and equal
Even carry out gas injection.
Operation principle：At work, the surfactant of difference in functionality can be selected according to well intake pressure size
Solution（Such as gas reverse wetting agent, surface-active oil displacement agent, foaming agent）As the working media of oil reservoir pulse ripple operation, from
And the difference in functionalitys such as gas wettability reversal, surfactant flooding and the non-mixed phase gas foam anti-channeling of rock are realized, advantageously account for
The problem of injecting high pressure and " has channeling ", improves injection efficiency and oil recovery factor, opens the valve 4 of low pressure valve 1 and first, electricity
Dynamic pump 2 first squeezes into decoction in medicine storage tank 5, and opens driven high voltage dosing pump 7 and the second valve 6 when needed, to water filling
The dosing of well well head 10, after dosing, driven high voltage dosing pump 7 and the second valve 6 are closed, using the water filling of distribution well 9, the water of injection enters
Enter into water injection pipe 13, and sprayed by conical nozzle 19, pass through waterpower pulse wave action and the effect for configuring medicament
Reach the effect of decompression, augmented injection and closure, when needing gas injection, opening air pump 16, the gas injection into air injection pipe 14, and by penetrating
Hole eyelet 20 sprays, and cavity can play further cavitation with gas to non-phase-mixing driving with impingement area and homogeneous acts on, so as to
Improve the uniformity of device outlet non-phase-mixing driving gas.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of non-mixed phase air water of low-permeability oil deposit hands over note fluctuation increasing injection device, including low pressure valve（1）, electrodynamic pump（2）、
First valve（4）, medicine storage tank（5）, the second valve（6）, driven high voltage dosing pump（7）, ball-and-seat（8）, distribution well（9）And water filling
Well well head（10）, the distribution well（9）And wellhead of water injection well（10）Between pass through high pressure water injection pipeline（11）Connection, its feature exist
In：The medicine storage tank（5）Entrance be fixed with pipeline（3）, and pipeline（3）On be sequentially connected in series low pressure valve（1）, electrodynamic pump（2）
With the first valve（4）, the medicine storage tank（5）Outlet be fixed with tapping line（12）, and tapping line（12）On be sequentially connected in series
Second valve（6）, driven high voltage dosing pump（7）And ball-and-seat（8）, the tapping line（12）With high pressure water injection pipeline（11）Even
It is logical, the wellhead of water injection well（10）Lower end be socketed with water injection pipe successively from the inside to the outside（13）, air injection pipe（14）And surface pipe
（15）, and water injection pipe（13）With high pressure water injection pipeline（11）Connection, the wellhead of water injection well（10）Side wall air pump is installed
（16）, and air pump（16）Pass through pipeline and air injection pipe（14）Connection, the water injection pipe（13）Lower end injection nozzle is installed（17）.
2. the non-mixed phase air water of a kind of low-permeability oil deposit according to claim 1 hands over note fluctuation increasing injection device, its feature
It is：The surface pipe（15）Lateral wall and wellhead of water injection well（10）Joint be provided with sealing cement filled cavity（18）.
3. the non-mixed phase air water of a kind of low-permeability oil deposit according to claim 1 hands over note fluctuation increasing injection device, its feature
It is：The injection nozzle（17）Front end conical nozzle is installed（19）.
4. the non-mixed phase air water of a kind of low-permeability oil deposit according to claim 1 hands over note fluctuation increasing injection device, its feature
It is：The air injection pipe（14）Lower end side wall on preforation tunnel is installed（20）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621366007.6U CN207004493U (en) | 2016-12-13 | 2016-12-13 | A kind of non-mixed phase air water of low-permeability oil deposit hands over note fluctuation increasing injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621366007.6U CN207004493U (en) | 2016-12-13 | 2016-12-13 | A kind of non-mixed phase air water of low-permeability oil deposit hands over note fluctuation increasing injection device |
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| Publication Number | Publication Date |
|---|---|
| CN207004493U true CN207004493U (en) | 2018-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621366007.6U Expired - Fee Related CN207004493U (en) | 2016-12-13 | 2016-12-13 | A kind of non-mixed phase air water of low-permeability oil deposit hands over note fluctuation increasing injection device |
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| CN (1) | CN207004493U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318716A (en) * | 2018-03-29 | 2019-10-11 | 中国石油化工股份有限公司 | Improve the CO of recovery ratio2Method for implanting and system |
| CN114909113A (en) * | 2022-06-08 | 2022-08-16 | 中国石油大学(华东) | Movable water-gas alternative gas injection device for shale oil exploitation |
| CN115199243A (en) * | 2022-06-09 | 2022-10-18 | 中国石油大学(华东) | Tight oil reservoir is opened and is adopted aqueous vapor gas injection device in turn |
-
2016
- 2016-12-13 CN CN201621366007.6U patent/CN207004493U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318716A (en) * | 2018-03-29 | 2019-10-11 | 中国石油化工股份有限公司 | Improve the CO of recovery ratio2Method for implanting and system |
| CN114909113A (en) * | 2022-06-08 | 2022-08-16 | 中国石油大学(华东) | Movable water-gas alternative gas injection device for shale oil exploitation |
| CN114909113B (en) * | 2022-06-08 | 2023-11-24 | 长江大学 | Movable water-gas alternate gas injection device for shale oil exploitation |
| CN115199243A (en) * | 2022-06-09 | 2022-10-18 | 中国石油大学(华东) | Tight oil reservoir is opened and is adopted aqueous vapor gas injection device in turn |
| CN115199243B (en) * | 2022-06-09 | 2023-09-22 | 中国石油大学(华东) | Water-gas alternate gas injection device for dense oil reservoir exploitation |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 Termination date: 20181213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |