CN106918053B - Ignition device for oil field exploitation and oil field exploitation method - Google Patents
Ignition device for oil field exploitation and oil field exploitation method Download PDFInfo
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- CN106918053B CN106918053B CN201510991997.6A CN201510991997A CN106918053B CN 106918053 B CN106918053 B CN 106918053B CN 201510991997 A CN201510991997 A CN 201510991997A CN 106918053 B CN106918053 B CN 106918053B
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000002485 combustion reaction Methods 0.000 claims abstract description 54
- 239000007789 gas Substances 0.000 claims description 93
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 6
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000003546 flue gas Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 238000011161 development Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000003502 gasoline Substances 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000003350 kerosene Substances 0.000 claims description 3
- 239000003345 natural gas Substances 0.000 claims description 3
- 239000001294 propane Substances 0.000 claims description 3
- -1 diesel Substances 0.000 claims description 2
- 238000009529 body temperature measurement Methods 0.000 claims 1
- 238000004891 communication Methods 0.000 claims 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 57
- 230000008569 process Effects 0.000 description 10
- 239000000126 substance Substances 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 8
- 239000010779 crude oil Substances 0.000 description 5
- 239000002737 fuel gas Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 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
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q13/00—Igniters not otherwise provided for
- F23Q13/02—Igniters not otherwise provided for using gas burners, e.g. gas pokers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/243—Combustion in situ
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention provides an ignition device and an oil field exploitation method. 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
The invention relates to the field of oilfield exploitation, in particular to an ignition device for oilfield exploitation and an oilfield exploitation method.
Background
The scale of thick oil production in Xinjiang oil fields is large, most blocks are in the later stage of steam injection development, the difficulty of exploitation is increased, and fireflooding is used as a development mode, so that the method is an effective means. The fire flooding mining technology is that the stratum is heated to lead the crude oil to reach the ignition point, and air is continuously injected into an oil layer; then burning in situ with 10-15% of the heavy components in the crude oil as fuel, the heat generated by the burningQuantities, gases, water vapor, gaseous hydrocarbons, etc. form a variety of displacements that drive the crude oil toward the production well. Compared with steam flooding, the fire flooding has the advantages of wide range of suitable oil reservoirs, high heat utilization rate, energy consumption and CO 2 Low discharge and high ultimate recovery rate.
The premise of successful fire flooding exploitation is that an oil layer in a near-wellbore region of a gas injection ignition well is successfully ignited, so that an ignition process is one of key technologies of fire flooding. At present, two main domestic fire flooding ignition modes are provided: electrical ignition and chemical ignition.
The electric ignition is that the compressed air is injected into the well to make the compressed air exchange heat with the electric heater at the bottom of the well, and then the exchanged heat is brought into the oil layer to heat the oil layer, so that the oil layer is ignited after reaching the ignition point of the oil layer, and the ignition process is convenient to control. However, the compressed air injected in the electric ignition method cannot be in full contact with the heater, so that the phenomenon that the air absorbs heat unevenly and even the heater is burnt out due to overhigh temperature is easily caused. Meanwhile, the process is complex in construction, the ignition power of the igniter cannot be too high (below 60 KW), and therefore a high-power transformer needs to be matched. And the highest heat-resisting temperature is 500 ℃ (the combustion point of the thick oil in the city of wind is more than 480 ℃), and the igniter can work in the limit state when in application, and the reliability can not be ensured. In addition, due to the influences of the length limitation of a power cable and the heating loss of the cable, the shallow thick oil ignition thermal efficiency of the electric ignition process below 800m is high, and the ignition thermal loss is large under the deep thick oil.
The chemical ignition method is to ignite the oil layer by means of heat release, and most of the chemical ignition methods adopt slow oxidation ignition or spontaneous combustion of organic substances to ignite the reservoir. Chemical ignition is difficult to control during combustion of the reservoir, so that the chemical ignition process is not widely adopted. The disadvantages of chemical ignition are long time for oil layer to be slowly oxidized and low ignition efficiency. Meanwhile, the chemical is expensive and difficult to store. In addition, chemical formulas contain thermal oxidants, and the chemical ignition process is not widely adopted due to the safety risk and other reasons in the well entry process.
Disclosure of Invention
The invention mainly aims to provide an ignition device for oil field exploitation and an oil field exploitation method, so as to solve the problem that a heater is easy to damage or is difficult to control in the combustion process of an oil layer in the conventional ignition method.
In order to achieve the above object, an aspect of the present invention provides an ignition device for oil field exploitation, including: 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.
Further, the combustion chamber still includes the combustor, and the combustor is provided with gas nozzle and air nozzle, and gas nozzle is linked together with the gas pipeline, and air nozzle is linked together with first air duct.
Further, the number ratio of the gas nozzles to the air nozzles is 1:2~1:6.
further, the number ratio of the gas nozzles to the air nozzles is 1:2~1:4.
further, the air nozzles are distributed around the gas nozzle with the gas nozzle as the center.
Further, the air nozzle includes: the first opening is arranged close to the first air pipeline, the second opening is arranged far away from the first air pipeline and located in the combustion chamber, and the sectional area of the first opening is larger than that of the second opening.
Furthermore, the air nozzle is of a frustum-shaped structure, the cross section of the air nozzle on the plane where the central axis is located is a first cross section, the first cross section is trapezoidal, the included angle between two side walls of the first cross section is a, and a is greater than or equal to 60 degrees and less than or equal to 150 degrees.
Further, a is more than or equal to 60 and less than or equal to 80 degrees.
Further, the first air pipeline is sleeved outside the gas pipeline, and the gas pipeline and the first air pipeline are isolated from each other before entering the combustion chamber.
Further, the combustion chamber is provided with the exhanst gas outlet, and ignition is used in oil field exploitation still includes second air duct, and the second air duct cover is established in the outside of combustion chamber, exhanst gas outlet and second air duct intercommunication.
Further, a flame stabilizing device is arranged in the combustion chamber and used for continuously heating the gas nozzle.
Further, the ignition device for oil field exploitation further comprises a blowout prevention pipe, and the blowout prevention pipe is communicated with the gas pipeline, the first air pipeline and the second air pipeline respectively.
Further, the ignition device for oil field exploitation further comprises a temperature measuring unit, the temperature measuring unit extends inside the gas pipeline, and the temperature measuring unit is connected with the other end of the discharge ignition needle.
Further, the temperature measuring unit comprises a fuel gas temperature measuring device, a combustor inlet temperature measuring device and a combustor outlet temperature measuring device.
In another aspect, the present invention provides an oil field exploitation method in which the ignition device for oil field exploitation is used for ignition.
Further, the gas introduced into the gas pipeline of the ignition device is combustible gas or atomized combustible liquid.
Further, the combustible gas is selected from one or more of natural gas, hydrogen or propane, and the combustible liquid is selected from one or more of gasoline, diesel oil or kerosene.
By applying the technical scheme of the invention, 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 then are combusted under the action of the discharge ignition needle, the combustion process is easy to control, and the ignition device for oil field exploitation can be recycled.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, 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 view illustrating an ignition device for oilfield exploitation, provided according to an exemplary embodiment of the present invention; and
fig. 2 shows a schematic structural diagram of a burner provided in a preferred embodiment of the present invention.
Wherein the figures include the following reference numerals:
100. a gas storage tank; 200. a ground instrument control device; 10. a gas pipeline; 20. a first air duct; 30. a discharge ignition needle; 40. a combustion chamber; 401. a flue gas outlet; 50. a burner; 501. a gas nozzle; 502. an air nozzle; 60. a second air duct; 70. a flame stabilizing device; 80. a lubricator; 90. a temperature measuring unit.
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 embodiments with reference to the attached drawings.
As described in the background, the prior ignition methods have problems in that the igniter is easily damaged or is not easily controlled during the combustion of the reservoir. In order to solve the above technical problems, the present invention provides an ignition device for oil field exploitation, as shown in fig. 1, the ignition device for oil field exploitation comprising: the gas pipeline 10 and the first air pipeline 20 are respectively communicated with the combustion chamber 40, and one end of the discharge ignition needle 30 is arranged in the combustion chamber 40.
In the ignition device for oil field exploitation provided by the invention, gas and air are respectively injected into the combustor 50 through different pipelines, the gas and the air are mixed in the combustor 50 and then combusted, the air is heated to be higher than the ignition point of crude oil by the heat generated by combustion, and the heated air and combustion flue gas are injected into an oil layer together to combust the crude oil. The ignition temperature of the fuel gas can reach 1000 ℃, and the ignition power can reach more than 200 KW. The gas line 10 and the first air line 20 are respectively communicated with the combustion chamber 40, so that it is possible to mix air and gas only in the combustion chamber 40 and then to perform combustion by the discharge ignition needle 30, whereby the above-mentioned combustion process is easily controlled and the ignition device for oil field exploitation can be reused. In addition, the ignition device for oil field exploitation has no special requirement on the depth of an oil layer, and can be applied to ignition of thick oil in both shallow and deep layers. Therefore, the development of the ignition device for oil field exploitation provides technical support for developing ultra-thick oil and middle and deep thick oil, and improves an ignition process.
In the actual use process, the ignition device for oil field exploitation can adopt an all-metal structure, which is beneficial to reducing the manufacturing cost of the ignition device for oil field exploitation. The first air duct 20 is preferably a 1 inch 9 duct and the gas duct 10 is preferably a 2 inch duct 7 A/8 pipeline.
In this embodiment, the combustion chamber 40 further comprises a burner 50, the burner 50 is provided with a gas nozzle 501 and an air nozzle 502, the gas nozzle 501 is communicated with the gas pipeline 10, and the air nozzle 502 is communicated with the first air pipeline 20.
In the present embodiment, the number ratio of the gas nozzles 501 to the air nozzles 502 is 1:2~1:6. the number of the gas nozzles 501 and the number of the air nozzles 502 are limited in the range, so that the combustion efficiency of gas is improved, and the ignition power of the igniter is further improved. Preferably, the number ratio of the gas nozzles 501 to the air nozzles 502 is 1:2~1:4.
in the present embodiment, the air nozzles 502 are distributed around the gas nozzle 501, with the gas nozzle 501 as the center.
In the present embodiment, as shown in fig. 2, the air nozzle 502 includes: the first opening is disposed near the first air duct 20, the second opening is disposed far away from the first air duct 20 and inside the combustion chamber 40, and a sectional area of the first opening is larger than a sectional area of the second opening. The air nozzle 502 with the above structure is beneficial to further fully mixing the fuel gas and the air to achieve a sufficient combustion effect.
In this embodiment, as shown in fig. 2, the air nozzle 502 is a frustum-shaped structure, a cross section of the air nozzle 502 on a plane where a central axis is located is a first cross section, the first cross section is a trapezoid, an included angle between two sidewalls of the first cross section is a, where a is greater than or equal to 60 ° and less than or equal to 150 °. The included angle between the two intersecting lines formed by the first section and the pipe wall of the air nozzle 502 is limited in the range, so that the combustion effect of the mixed gas and air is further facilitated, and the temperature can reach about 628 ℃ and 450 ℃. More preferably 60. Ltoreq. A.ltoreq.80. The structure of the gas nozzle may also be the same as the structure of the air nozzle during the actual manufacturing process.
In the present embodiment, the first air duct 20 is sleeved outside the gas duct 10, and the gas duct 10 and the first air duct 20 are isolated from each other before entering the combustion chamber 40.
The mixing of gas and air prior to combustion is likely to result in the generation of explosions, and therefore isolating the gas pipe 10 and the first air pipe 20 from each other prior to combustion is advantageous to improve the safety of the ignition device for oil field exploitation provided herein. Meanwhile, the ignition device for oil field exploitation is simple in structure and is beneficial to later maintenance. Compared with fixed electric ignition, the material cost is only 10% of the electric ignition cost, so that the ignition device for oilfield exploitation is beneficial to reducing the cost, improving the economic benefit and promoting the popularization and application of the fireflooding technology.
In this embodiment, the combustion chamber 40 is provided with a flue gas outlet 401, the ignition device for oilfield exploitation further comprises a second air pipeline 60, the second air pipeline 60 is sleeved outside the combustion chamber 40, and the flue gas outlet 401 is communicated with the second air pipeline 60.
Set up exhanst gas outlet 401 on the combustion chamber 40, and exhanst gas outlet 401 and second air duct 60 intercommunication, this is favorable to the air that lets in for the first time and the gas burning when insufficient, lets in the air through second air duct 60, makes the above-mentioned gas that does not react completely continue to burn in order to heat the oil reservoir, and then improves the utilization ratio of gas. At the same time, the air introduced through the second air duct 60 also serves to cool the first air duct 20 and the gas duct 10, and is advantageous in suppressing the gas generated after combustion from flowing against the flow direction of the gas.
In the present embodiment, a flame holder 70 is provided inside the combustion chamber 40 for continuously heating the gas nozzle 501. The provision of the flame holding means 70 enables the gas nozzle 501 to be continuously heated, which is advantageous in suppressing the temperature at the gas nozzle 501 from being lower than the ignition temperature to affect combustion.
In this embodiment, the ignition device for oilfield exploitation further comprises a blowout preventer 80, and the blowout preventer 80 is respectively communicated with the gas pipeline 10, the first air pipeline 20 and the second air pipeline 60.
In this embodiment, the ignition device for oil field exploitation further includes a temperature measuring unit 90, the temperature measuring unit 90 extends inside the gas pipeline 10, and the temperature measuring unit 90 is connected to the other end of the discharge ignition needle 30. The discharge ignition needle 30 and the temperature measuring pipe line of the ignition device for oil field exploitation are integrated into a whole, so that the device does not need to use a power cable, and the temperature measuring unit 90 and the discharge ignition needle 30 are used as a composite cable. The cable has the advantages of thin wire diameter and good temperature resistance up to 1000 ℃, so that the running construction process of the pipe column is simpler than that of electric ignition.
In this embodiment, the temperature measuring unit 90 includes a gas temperature detector, a burner inlet temperature detector, and a burner outlet temperature detector. This facilitates real-time monitoring of the temperature of the gas duct 10, the burner inlet and the burner outlet. Preferably, the gas temperature detector, the combustor inlet temperature detector and the combustor outlet temperature detector are all thermocouples.
Preferably, the injection pipeline of the gas pipeline 10 is provided with a proportional control valve, a pressure reducing valve, a pressure gauge and a flow meter, which is beneficial to controlling and adjusting the injection amount of the gas, and meanwhile, when the gas returns upwards due to overhigh downhole temperature, the check valve is beneficial to inhibiting the gas from returning upwards, thereby being beneficial to avoiding burning out an igniter and a cable.
Preferably, the injection pipes of the first air pipe 20 and the second air pipe 60 are each provided with a pressure gauge, a cut-off valve, a flow meter, a throttle valve, and a check valve. This facilitates control and regulation of the amount of air injected. The amount of air injected in the second air duct 60 may be appropriately adjusted when the temperature at the outlet of the burner 50 is lower or higher than the ignition temperature.
In actual use, the gas pipeline 10 is preferably communicated with the gas storage tank 100, and an operator controls the operation of the ignition device for oil field exploitation through the ground instrument control device 200 during oil field exploitation.
The invention also provides an oil field exploitation method for igniting by using the ignition device for oil field exploitation.
When the ignition device for oil field exploitation is used for oil field exploitation, the ignition temperature of fuel gas can reach 1000 ℃, and the ignition power can reach more than 200KW, which is beneficial to improving the oil field exploitation efficiency. Meanwhile, the device has the advantages of simple structure, reusability and the like, so that the maintenance cost and the equipment construction cost of oil field exploitation are reduced. Meanwhile, the oil field exploitation method adopting the ignition device for oil field exploitation can be suitable for exploitation of ultra-thick oil and medium-deep thick oil, so that the ignition device is convenient to popularize in the field of oil field exploitation on a large scale.
In this embodiment, the gas introduced into the gas pipe 10 of the ignition device for oilfield exploitation is a combustible gas or a combustible liquid in an atomized state.
In this embodiment, the combustible gas includes, but is not limited to, one or more of natural gas, hydrogen, or propane, and the combustible liquid includes, but is not limited to, one or more of gasoline, diesel, or kerosene.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (15)
1. An ignition device for oil field exploitation, comprising:
the ignition device comprises a gas pipeline (10), a first air pipeline (20), a discharge ignition needle (30) and a combustion chamber (40), wherein the gas pipeline (10) and the first air pipeline (20) are respectively communicated with the combustion chamber (40), and one end of the discharge ignition needle (30) is arranged in the combustion chamber (40);
the combustor (40) further comprises a combustor (50), the combustor (50) is provided with a gas nozzle (501) and an air nozzle (502), the gas nozzle (501) is communicated with the gas pipeline (10), and the air nozzle (502) is communicated with the first air pipeline (20); the number ratio of the gas nozzles (501) to the air nozzles (502) is 1:2~1:6.
2. the oilfield exploitation ignition device according to claim 1, wherein the number ratio of the gas nozzles (501) to the air nozzles (502) is 1:2~1:4.
3. the ignition device for oil field exploitation according to claim 1 or 2, wherein the air nozzles (502) are distributed around the gas nozzle (501) centered on the gas nozzle (501).
4. The oilfield development ignition device of claim 1, wherein the air nozzle (502) comprises:
a first opening arranged close to the first air duct (20),
a second opening disposed away from the first air duct (20) and within the combustion chamber (40), the first opening having a cross-sectional area greater than a cross-sectional area of the second opening.
5. The oilfield exploitation ignition device according to claim 4, wherein the air nozzle (502) is of a frustum-shaped structure, the cross section of the air nozzle (502) on the plane of the central axis of the air nozzle (502) is a first cross section, the first cross section is trapezoidal, and the included angle between two side walls of the first cross section is a, wherein a is greater than or equal to 60 and less than or equal to 150 °.
6. The oilfield ignition device of claim 5, wherein a is 60 ° or more and 80 ° or less.
7. The ignition device for oil field exploitation according to claim 1 or 4, wherein the first air pipe (20) is sleeved outside the gas pipe (10), and the gas pipe (10) and the first air pipe (20) are isolated from each other before entering the combustion chamber (40).
8. The ignition device for oil field exploitation according to claim 5, wherein the combustion chamber (40) is provided with a flue gas outlet (401), the ignition device for oil field exploitation further comprises a second air pipeline (60), the second air pipeline (60) is sleeved outside the combustion chamber (40), and the flue gas outlet (401) is communicated with the second air pipeline (60).
9. An oil field exploitation ignition device according to claim 1, characterized in that a flame holding device (70) is arranged inside the combustion chamber (40) for continuously heating the gas nozzle (501).
10. The oilfield exploitation ignition device according to claim 8, further comprising a blowout preventer (80), wherein the blowout preventer (80) is in communication with the gas pipeline (10), the first air pipeline (20), and the second air pipeline (60), respectively.
11. The ignition device for oil field exploitation according to claim 1, further comprising a temperature measuring unit (90), wherein the temperature measuring unit (90) extends inside the gas pipeline (10), and the temperature measuring unit (90) is connected to the other end of the discharge ignition needle (30).
12. The oilfield exploitation ignition device according to claim 11, wherein the temperature measurement unit (90) comprises a gas temperature detector, a combustor inlet temperature detector and a combustor outlet temperature detector.
13. An oil field exploitation method, wherein the oil field exploitation according to any one of claims 1 to 12 is used for ignition by an ignition device.
14. The method of claim 13, wherein the gas introduced into the gas conduit (10) of the oilfield exploitation igniter is a combustible gas or a combustible liquid in an atomized state.
15. The method of claim 14, wherein the combustible gas is selected from one or more of natural gas, hydrogen, or propane, and the combustible liquid is selected from one or more of gasoline, diesel, or kerosene.
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| CN201510991997.6A CN106918053B (en) | 2015-12-24 | 2015-12-24 | Ignition device for oil field exploitation and oil field exploitation method |
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| CN201510991997.6A CN106918053B (en) | 2015-12-24 | 2015-12-24 | Ignition device for oil field exploitation and oil field exploitation method |
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| CN107120680B (en) * | 2017-07-13 | 2023-09-29 | 陕西延长石油（集团）有限责任公司 | Ignition device and ignition method under high-pressure inert atmosphere |
| CN110043235A (en) * | 2019-05-23 | 2019-07-23 | 西南石油大学 | A kind of thick oil filling vaporization method burnt using underground supercritical water |
| CN112796726B (en) * | 2021-02-03 | 2022-03-25 | 西南石油大学 | Underground blasting device and method for reservoir fracture expansion of coal-bed gas well |
| CN114856522A (en) * | 2022-06-08 | 2022-08-05 | 西南石油大学 | Shale oil reservoir air injection fracturing and fireflood development integrated method |
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| JP3747066B2 (en) * | 1995-12-27 | 2006-02-22 | シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ | Flameless combustor |
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