CN205383646U - Ignition device - Google Patents
Ignition device Download PDFInfo
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- CN205383646U CN205383646U CN201521100706.1U CN201521100706U CN205383646U CN 205383646 U CN205383646 U CN 205383646U CN 201521100706 U CN201521100706 U CN 201521100706U CN 205383646 U CN205383646 U CN 205383646U
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- gas
- air
- nozzle
- air line
- igniter
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- 239000007789 gas Substances 0.000 claims description 77
- 239000000567 combustion gas Substances 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 abstract description 25
- 239000003921 oil Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 13
- 238000010304 firing Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000010779 crude oil Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010795 Steam Flooding Methods 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000001698 pyrogenic effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model provides an ignition device. The ignition device includes: gas pipeline, first air pipe, discharge ignition needle and combustion chamber, gas pipeline and first air pipe are linked together with the combustion chamber respectively, and the one end of discharge ignition needle sets up inside the combustion chamber. The gas pipeline and the first air pipeline are respectively communicated with the combustion chamber, so that air and gas can be mixed only in the combustion chamber and can be combusted under the action of the discharge ignition needle, and the ignition device has the advantages that the combustion process is easy to control, the ignition device can be recycled and the like.
Description
Technical field
This utility model relates to field of oilfield exploitation, in particular to a kind of igniter.
Background technology
Xinjiang Oilfield viscous crude production scale is big, and major part block is in the steam injection development later stage, and exploitation difficulty increases, and is a kind of effective means using fireflood as development scheme.Fireflood production technique is to make crude oil reach burning-point by adding hot formation, is continuously injected into air in oil reservoir；Then the heavy component of 10～15% in crude oil is adopted as fuel combustion (of oil) insitu, to form multiple displacement effect by the burn heat of generation, gas, water vapour, gaseous hydrocarbon etc. and crude oil is driven onto producing well.Compared with steam flooding, it is wide that fireflood adapts to oil reservoir scope, and heat utilization efficiency is high, energy consumption and CO2Discharging low, ultimate recovery is high.
Fireflood exploitation obtains the oil reservoir that successful premise is gas injection ignition well near wellbore zone and is successfully ignited, it is seen that ignition process is one of key technology of fireflood.At present, domestic fireflood sparking mode mainly has two kinds: electric ignition and chemic ignition.
Electric ignition is that ignition process is easy to control by injecting compressed air in well, making compression air and downhole electric heater carry out heat exchange, then bring exchanged heat into oil reservoir, make oil reservoir heat up, be ignited after reaching oil reservoir burning-point.But the compression air injected in electric ignition method can not be fully contacted with heater, thus air heat absorption easily can be caused uneven, even cause heter temperature too high and the phenomenon that is burned.Meanwhile, this construction technology is complicated, the firing power of lighter can not too high (below 60KW), thus need supporting high-power transformer.And its upper limit temperature of heat tolerance is 500 DEG C (wind city viscous crude burning-point is more than 480 DEG C), and during application, lighter will work in limit state, its reliability it cannot be guaranteed that.Additionally, due to the impact of power cable length limitation, cable heat producing losses, electric ignition technique is higher at the shallow layer thick oil igniting thermal efficiency of below 800m, bigger in deep-layer heavy crude down-firing heat loss.
Chemical point pyrogenic process is oil reservoir that the means utilizing heat release are ignited, and great majority adopt eremacausis to ignite or reservoir is lighted in organic species spontaneous combustion.Chemic ignition is difficult to control in oil reservoir combustion process, causes chemic ignition technique not to be widely adopted.The shortcoming of chemic ignition is that oil reservoir eremacausis required time length, ignition effectiveness are low.Simultaneously chemical drugs is expensive, not easily preserve.In addition all containing hot oxidant in chemical drugs formula, in entering well process, there is the reasons such as security risk, cause chemic ignition technique not to be widely adopted.
Utility model content
Main purpose of the present utility model is in that to provide a kind of igniter, with solve heater in existing ignition method fragile or in oil reservoir combustion process uppity problem.
To achieve these goals, one aspect of this utility model provides a kind of igniter, igniter includes: gas pipeline, the first air line, discharge igniting pin and combustor, gas pipeline and the first air line respectively with combustion chamber, one end of discharge igniting pin is arranged at combustion chamber.
Further, combustor also includes burner, and burner is provided with gas nozzle and air nozzle, and gas nozzle is connected with gas pipeline, and air nozzle and the first air line are connected.
Further, the quantity of gas nozzle and air nozzle is than for 1:2～1:6.
Further, the quantity of gas nozzle and air nozzle is than for 1:2～1:4.
Further, centered by gas nozzle, air nozzle is distributed in around gas nozzle.
Further, air nozzle includes: the first opening, is disposed in proximity to the first air line, and the second opening is arranged at away from the first air line and is positioned at combustion chamber, and the sectional area of the first opening is more than the sectional area of the second opening.
Further, air nozzle is taper type structure, air nozzle axis wherein cross section in the plane be the first cross section, and the first cross section is trapezoidal, and the angle between two sidewalls in the first cross section is a, wherein, 60≤a≤150 °.
Further, 60≤a≤80 °.
Further, the first air line is set in the outside of gas pipeline, and gas pipeline and the first air line are isolated from each other before entering combustor.
Further, combustor is provided with exhanst gas outlet, and igniter also includes the second air line, and the second air line is set in the outside of combustor, exhanst gas outlet and the connection of the second air line.
Further, combustion chamber is provided with steady flame device, for continuous heating gas nozzle.
Further, igniter also includes lubricator, and lubricator is connected with gas pipeline, the first air line and the second air line respectively.
Further, igniter also includes temperature measuring unit, and temperature measuring unit extends inside gas pipeline, and temperature measuring unit is connected with the other end of discharge igniting pin.
Further, temperature measuring unit includes combustion gas thermal detector, burner inlet thermal detector and burner outlet thermal detector.
Application the technical solution of the utility model, gas pipeline and the first air line respectively with combustion chamber, thus this can make air and combustion gas only mix in a combustion chamber, then burn under the effect of discharge igniting pin, thus above-mentioned combustion process is easier to control and igniter can reuse.
Accompanying drawing explanation
The Figure of description constituting the part of the application is used for providing being further appreciated by of the present utility model, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 illustrates the structural representation of the igniter provided according to a kind of typical embodiment of the present utility model；And
Fig. 2 illustrates the structural representation of a kind of burner preferred embodiment provided of this utility model.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling:
100, combustion gas storage tank；200, ground instrument controls device；10, gas pipeline；20, the first air line；30, discharge igniting pin；40, combustor；401, exhanst gas outlet；50, burner；501, gas nozzle；502, air nozzle；60, the second air line；70, steady flame device；80, lubricator；90, temperature measuring unit.
Detailed description of the invention
It should be noted that when not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Described by background technology, existing ignition method exists lighter fragile or in oil reservoir combustion process uppity problem.In order to solve above-mentioned technical problem, this utility model provides a kind of igniter, as shown in Figure 1, above-mentioned igniter includes: gas pipeline the 10, first air line 20, discharge igniting pin 30 and combustor 40, gas pipeline 10 is connected with combustor 40 respectively with the first air line 20, and it is internal that one end of discharge igniting pin 30 is arranged at combustor 40.
In the igniter that this utility model provides, combustion gas and air are injected separately in burner 50 by different pipelines, and combustion gas and air burn after mixing in burner 50, after air is heated to above crude oil burning-point by the heat that burning produces, the air after heating is together injected oil reservoir with combustion product gases and makes burning crude oil.Gas ignition temperature is high up to 1000 DEG C, and firing power is relatively big up to more than 200KW.Gas pipeline 10 is connected with combustor 40 respectively with the first air line 20, thus this can make air and combustion gas only mix in combustor 40, then burn under the effect of discharge igniting pin 30, thus above-mentioned combustion process is easier to control, and igniter can reuse.In addition the degree of depth of oil reservoir is not specially required by above-mentioned igniter, and shallow-layer and deep-layer heavy crude igniting all can be applied.Therefore, the development of above-mentioned igniter provides technical support for exploitation super-viscous oil and mid-deep strata viscous crude, and improves ignition process.
In actual use, igniter can adopt all-metal construction, and this advantageously reduces the cost of igniter.First air line 20 is preferably the pipeline of 1 cun 9, and gas pipeline 10 is preferably 27The pipeline of/8.
In the present embodiment, combustor 40 also includes burner 50, and burner 50 is provided with gas nozzle 501 and air nozzle 502, and gas nozzle 501 is connected with gas pipeline 10, and air nozzle 502 is connected with the first air line 20.
In the present embodiment, the quantity of gas nozzle 501 and air nozzle 502 is than for 1:2～1:6.The quantity of gas nozzle 501 with air nozzle 502 is limited in above-mentioned scope, is conducive to improving the efficiency of combustion of combustion gas, and then improves the firing power of lighter.Preferably, the quantity of gas nozzle 501 and air nozzle 502 is than for 1:2～1:4.
In the present embodiment, centered by gas nozzle 501, air nozzle 502 is distributed in around gas nozzle 501.
In the present embodiment, as in figure 2 it is shown, air nozzle 502 includes: the first opening, it is disposed in proximity to the first air line 20, second opening, is arranged at away from the first air line 20 and is positioned at combustor 40 inside, and the sectional area of the first opening is more than the sectional area of the second opening.Air nozzle 502 is arranged to said structure, is conducive to making combustion gas and air mixing after-combustion effect more abundant further.
In the present embodiment, as in figure 2 it is shown, air nozzle 502 is taper type structure, air nozzle 502 axis wherein cross section in the plane be the first cross section, and the first cross section is trapezoidal, and the angle between two sidewalls in the first cross section is a, wherein, 60≤a≤150 °.Angle between two intersections formed by the tube wall of the first cross section and air nozzle 502 is limited in above-mentioned scope, is conducive to further making combustion gas and the mixed combustion efficiency of air, and its temperature can reach 628 DEG C of firing temperatures about 450 DEG C.It is more preferably 60≤a≤80 °.In actual fabrication process, the structure of gas nozzle can also be identical with the structure of air nozzle.
In the present embodiment, the first air line 20 is set in the outside of gas pipeline 10, and gas pipeline 10 and the first air line 20 are isolated from each other before entering combustor 40.
Combustion gas and air mix before combustion and being easily caused blast and produce, thus gas pipeline 10 and the first air line 20 are isolated from each other before combustion and are conducive to improving the safety of igniter that the application provides.Above-mentioned ignition device structure is simple simultaneously, and this is conducive to the maintenance in later stage.Simultaneously compared to fixed electric ignition, its fee of material is only the 10% of electric ignition expense, thus uses above-mentioned igniter to advantageously reduce cost, increase economic efficiency, and promotes the popularization and application of fireflood technology.
In the present embodiment, combustor 40 is provided with exhanst gas outlet 401, and igniter also includes the second air line 60, and it is outside that the second air line 60 is set in combustor 40, and exhanst gas outlet 401 connects with the second air line 60.
Combustor 40 arranges exhanst gas outlet 401, and exhanst gas outlet 401 connects with the second air line 60, this is conducive to when the air that passes into of first time and fuel gas buring insufficient, air is passed into by the second air line 60, make the combustion gas completely of above-mentioned unreacted proceed burning to heat oil reservoir, and then improve the utilization rate of combustion gas.The air simultaneously passed into by the second air line 60 may also function as the effect of cooling the first air line 20 and gas pipeline 10, and the gas produced after being conducive to suppressing burning flows against the flow direction of combustion gas.
In the present embodiment, combustor 40 is internally provided with steady flame device 70, for continuous heating gas nozzle 501.Gas nozzle 501 can be played the effect of continuous heating by the setting of steady flame device 70, and this is conducive to the temperature suppressing gas nozzle 501 place to affect burning lower than firing temperature.
In the present embodiment, igniter also includes lubricator 80, and lubricator 80 is connected with gas pipeline the 10, first air line 20 and the second air line 60 respectively.
In the present embodiment, igniter also includes temperature measuring unit 90, and temperature measuring unit 90 extends inside gas pipeline 10, and temperature measuring unit 90 is connected with the other end of discharge igniting pin 30.In above-mentioned igniter, discharge igniting pin 30 and thermometric pipeline become one, thus need not use power cable in said apparatus, but using temperature measuring unit 90 and discharge igniting pin 30 as composite cable.This cable diameter is relatively thin, and temperature tolerance is good up to 1000 DEG C, so it is simpler than electric ignition to enter work progress under tubing string.
In the present embodiment, temperature measuring unit 90 includes combustion gas thermal detector, burner inlet thermal detector and burner outlet thermal detector.This is conducive to the temperature of monitoring gas pipeline 10, burner inlet and burner outlet in real time.Preferably, combustion gas thermal detector, burner inlet thermal detector and burner outlet thermal detector are thermocouple.
Preferably, the flow in pipes of gas pipeline 10 is provided with ratio adjusting valve, air relief valve, piezometer and effusion meter, this is conducive to controlling the size with regulating gas injection rate, simultaneously when the too high gas of downhole temperature returns, ball-and-seat is conducive to suppressing to return on gas, and then is conducive to avoiding burn out point firearm and cable.
Preferably, the flow in pipes of the first air line 20 and the second air line 60 is provided with piezometer, stop valve, effusion meter, choke valve and ball-and-seat.This injection rate being conducive to controlling and regulate air.When burner 50 outlet temperature is below or above firing temperature, can suitably regulate the injection rate of the second air line 60 air.
In actual use, gas pipeline 10 is preferably connected with combustion gas storage tank 100, and in oil extraction process, operator controls the operation of above-mentioned igniter by ground instrument control device 200.
In actual use, the gas passed in the gas pipeline 10 of above-mentioned igniter is imflammable gas or the flammable liquid of atomization state.Preferably, imflammable gas includes but not limited to one or more in natural gas, hydrogen or propane, and flammable liquid includes but not limited to one or more in gasoline, diesel oil or kerosene.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.
Claims (14)
1. an igniter, it is characterised in that described igniter includes:
Gas pipeline (10), the first air line (20), discharge igniting pin (30) and combustor (40), described gas pipeline (10) is connected with described combustor (40) respectively with described first air line (20), and it is internal that one end of described discharge igniting pin (30) is arranged at described combustor (40).
2. igniter according to claim 1, it is characterized in that, described combustor (40) also includes burner (50), described burner (50) is provided with gas nozzle (501) and air nozzle (502), described gas nozzle (501) is connected with described gas pipeline (10), and described air nozzle (502) is connected with described first air line (20).
3. igniter according to claim 2, it is characterised in that the quantity of described gas nozzle (501) and described air nozzle (502) ratio is for 1:2～1:6.
4. igniter according to claim 3, it is characterised in that the quantity of described gas nozzle (501) and described air nozzle (502) ratio is for 1:2～1:4.
5. igniter according to claim 2, it is characterised in that centered by described gas nozzle (501), described air nozzle (502) is distributed in described gas nozzle (501) around.
6. igniter according to claim 2, it is characterised in that described air nozzle (502) including:
First opening, is disposed in proximity to described first air line (20),
Second opening, is arranged at away from described first air line (20) and is positioned at described combustor (40) inside, and the sectional area of described first opening is more than the sectional area of described second opening.
7. igniter according to claim 6, it is characterized in that, described air nozzle (502) is taper type structure, described air nozzle (502) in the axis of described air nozzle (502) cross section in the plane be the first cross section, and described first cross section is trapezoidal, angle between two sidewalls in described first cross section is a, wherein, and 60≤a≤150 °.
8. igniter according to claim 7, it is characterised in that 60≤a≤80 °.
9. the igniter according to claim 1 or 6, it is characterized in that, described first air line (20) is set in the outside of described gas pipeline (10), and described gas pipeline (10) and described first air line (20) described combustor (40) is front to be isolated from each other entering.
10. igniter according to claim 7, it is characterized in that, described combustor (40) is provided with exhanst gas outlet (401), described igniter also includes the second air line (60), described second air line (60) is set in the outside of described combustor (40), and described exhanst gas outlet (401) connects with described second air line (60).
11. igniter according to claim 2, it is characterised in that described combustor (40) is internally provided with steady flame device (70), gas nozzle (501) described in continuous heating.
12. igniter according to claim 10, it is characterized in that, described igniter also includes lubricator (80), and described lubricator (80) is connected with described gas pipeline (10), described first air line (20) and described second air line (60) respectively.
13. igniter according to claim 1, it is characterized in that, described igniter also includes temperature measuring unit (90), described temperature measuring unit (90) is in the internal extension of described gas pipeline (10), and described temperature measuring unit (90) is connected with the other end of described discharge igniting pin (30).
14. igniter according to claim 13, it is characterised in that described temperature measuring unit (90) includes combustion gas thermal detector, burner inlet thermal detector and burner outlet thermal detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521100706.1U CN205383646U (en) | 2015-12-24 | 2015-12-24 | Ignition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521100706.1U CN205383646U (en) | 2015-12-24 | 2015-12-24 | Ignition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205383646U true CN205383646U (en) | 2016-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521100706.1U Active CN205383646U (en) | 2015-12-24 | 2015-12-24 | Ignition device |
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| Country | Link |
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| CN (1) | CN205383646U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918053A (en) * | 2015-12-24 | 2017-07-04 | 中国石油天然气股份有限公司 | Ignition device and oil field exploitation method |
-
2015
- 2015-12-24 CN CN201521100706.1U patent/CN205383646U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918053A (en) * | 2015-12-24 | 2017-07-04 | 中国石油天然气股份有限公司 | Ignition device and oil field exploitation method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |