CN209569001U - A kind of oil shale in-situ recovery well down-firing heating device - Google Patents
A kind of oil shale in-situ recovery well down-firing heating device Download PDFInfo
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- CN209569001U CN209569001U CN201920186975.6U CN201920186975U CN209569001U CN 209569001 U CN209569001 U CN 209569001U CN 201920186975 U CN201920186975 U CN 201920186975U CN 209569001 U CN209569001 U CN 209569001U
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Abstract
Tubing string cable system, underground ignition system in a kind of oil shale in-situ recovery well down-firing heating device, including high-pressure oil gas injected system, igniting heating TT&C system, well.When utility model works, first by the central passage of double-wall drill pipe into well injecting compressed air, generate high-speed air flow through air nozzle.Then fuel oil is conveyed into well by the annulus access between the inner wall and outer wall of double-wall drill pipe, is atomized by swirl nozzle, and be sufficiently mixed with high-speed air flow, lights fuel oil under the heat effect of heating rod, the heat for generation of burning is used for heating oil shale layer.Flame detector real-time monitoring underground combustion case, downhole packer make the peak of burning extend and extend towards stratum in well, continuously heating oil shale ore bed.The utility model reduces the pipeline transport loss due to energy, greatly improves the efficiency of combustion of fuel oil and the utilization rate of energy.
Description
Technical field
The utility model relates to unconventional energy resource to exploit field, in particular to a kind of oil shale in-situ recovery well down-firing adds
Thermal.
Background technique
Oil shale is all widely closed all the time as the new energy of 21 century alternative conventional gas and oil resource
Note.Oil shale is a kind of sedimentary rock containing organic matter, and the content of organic matter is usually 5%~50% to differ, and main Types can be with
It is divided into for sapropelic material, humus or mixed type.Inorganic mineral mainly includes quartz, kaolin, clay, carbonate etc..Inside it
Organic matter (kerogen) by shale oil and pyrolysis gas can be generated after high-temperature process.
Currently, the exploitation Land use systems of oil shale are broadly divided into two kinds of forms, including ground retorting technique and ground in-situ
Cracking technique, ground retorting technique have been developed so far quite maturation, are that current shale oil exploits the major way utilized.But
There is also certain limitations for this method, with earth's surface takes up a large area, capacity usage ratio is low, environmental pollution is serious and raw
Produce the disadvantages of at high cost.And ground in-situ cracking technique does not need to exploit earth's surface, but directly to underground oil shale layer
It is heated, has many advantages, such as good product quality, occupied area is small and tar productivity is high.Currently, there are many in-situ retortings in the world
Method, Convective Heating, radiant heating and conduction heating (electric heating, combustion heating) three can be divided into according to the transfer mode of energy
Kind mode.
Mainly there is the steam injection convection current of Institutes Of Technology Of Taiyuan to add using the oil shale in-situ transformation technology of Convective Heating mode
The CRUSH technology that thermal technology and snow teflon company and Los Alamos National Laboratory developed jointly in 2006.Taiyuan science and engineering
The steam injection Convective Heating technology of university mainly heats oil shale layer using high temperature hydrocarbon gas, which needs elder generation
In ground configuration group wells, it is connected to group wells by carrying out pressure break to rock stratum, hydrocarbon gas is then heated to 400 DEG C~700 DEG C
After be injected into oil shale ore bed, oil shale layer is heated by heat convection mode.After pyrolysis generates oil gas, adopted
A portion hydrocarbon gas is continued to be passed through storage tank, repeats to heat rock stratum after heating pressurization by collection.Avenge teflon company
CRUSH technology equally also takes fluid convection heating method, and the technology is firstly the need of to rammell row explosion pressure break, then again
Utilize high temperature CO2Gas heats oil shale layer, finally exports the products such as oil gas to earth's surface by vertical well.
The technology of radiant heating method is taken mainly to have U.S. Illinois Polytechnics and Lao Lunsili object not National Laboratory
The LLNL radio-frequency technique that room proposes and develops is heated to oil shale using improved less radio-frequency heating method, is had
Penetration power is strong, is easy to control, and shortens the time of thermal diffusion；The RF/CF technology of Ray Thcon is that another utilizes radio-frequency technique
Heating, supercritical fluid make carrier, the technology heated to oil shale layer.
At present take the technology of Electric heating it is most typical be exactly Shell Co. Ltd ICP technology.This technology is using vertical
Then electric heater is placed into oil shale ore bed by straight boring method, using conduction of heat heating oil shale layer, then use
Oil gas product is evacuated to ground by traditional oil production method.That takes situ combustion heating technique mainly has Exxon Mobil to mention
It proposes to utilize fuel and oxygen as the underground heating mode of circulation of fluid and General Electric Co. Limited using injection hydrocarbons out
The heating method of air burner heating duct and air in underground combustion device.
Although above-mentioned In Situ Heating technology does not need oil shale mine this production process from underground mining to ground, one
Determine to reduce production cost in degree, but that there are still heat utilization ratios is low, heating efficiency is low and overall cost is high, equipment instrument
A series of problems, such as device installation is inconvenient, so that many original position pyrolytic techniques are existing still in experimental stage, it can not be specific
It is realized in the site operation of field.Therefore it is badly in need of a kind of underground heating device for being suitable for oil shale in-situ exploitation, to solve mesh
The problem that preceding oil shale in-situ transformation technology is difficult to realize.
Summary of the invention
In view of the above problems, the utility model proposes a kind of heating of oil shale in-situ recovery well down-firing to fill
It sets.
A kind of oil shale in-situ recovery well down-firing heating device, including electric-motor pump, tank for gaseous or liquid substances, pressure equaliser, well
Mouthful packer, signal cable, heating controller, double-wall drill pipe, overlying rock, oil shale ore bed, oil shale ore bed, heating rod,
Air nozzle, swirl nozzle, flame detector and downhole packer；Electric-motor pump includes air pump and oil pump；
Electric-motor pump, tank for gaseous or liquid substances and pressure equaliser constitute high-pressure oil gas injected system；
Heating controller and flame detector composition igniting heating TT&C system；
Double-wall drill pipe, downhole packer and signal cable constitute tubing string cable system in well；Signal cable is for connecting fire
Flame detector and heating controller；
Air nozzle, swirl nozzle and heating bar construction underground ignition system；
Pressure equaliser is oil pressure and the air pressure that injection is adjusted by built-in pressure balance film, so that injecting into well
Fuel pressure and air pressure be consistent.
Heating controller realizes the computer heating control in well by PLD control method and PCU Power Conditioning Unit.
The central passage of double-wall drill pipe is the transport channel of gas, for the air required to shaft bottom conveying；Double-wall drill pipe
The annulus access of inner wall and outer wall is the transfer passage of fuel oil, for fuel oil to be transported to bottom hole.
Swirl nozzle is connected with the inner wall of double-wall drill pipe with the annulus access of outer wall, is used for fuel-oil atmozation；
Air nozzle is connected with the central passage of double-wall drill pipe, the fuel oil for generating the air stream of high speed, with atomization
It is sufficiently mixed, improves the efficiency of combustion of fuel oil.
Flame detector is distributed on the outside of heating rod, the combustion case for real-time monitoring fuel oil.
Downhole packer is cirque structure, and outside diameter is consistent with bore diameter, outside interior circular diameter and double-wall drill pipe
Diameter is consistent, for insulating wellhole, prevents underground burned flame from altering to well head, extends the sharp side of fuel burning to stratum,
Constantly oil shale ore bed is heated.
Oil shale recovery well is overlying rock and oil shale ore bed from top to bottom, and oil shale ore bed includes the first oil shale mine
Layer and the second oil shale ore bed；
A kind of heating means of oil shale in-situ recovery well down-firing heating device:
Air and fuel oil are conveyed into pressure equaliser by air pump and oil pump first, exported after pressure balance same
The compressed air and fuel oil of pressure.Then compressed air injects into well through the central passage of double-wall drill pipe, and produces through air nozzle
Raw high-speed air flow, the annulus access between inner wall and outer wall that fuel oil passes through double-wall drill pipe is delivered in well, and is sprayed through eddy flow
Mouth atomization, then be sufficiently mixed with high-speed air flow, fuel oil is lighted under the heat effect of heating rod, the heat for generation of burning is used for
Heating oil shale layer.Pass through the combustion case of igniting heating TT&C system real-time monitoring and control underground fuel oil.Downhole packer
So that the peak of burning extends towards stratum in well and extension, continuously heating oil shale ore bed.
The utility model has the beneficial effects that
The structure, manufacturing process of the utility model are simple, at low cost and convenient for safeguarding；It lights a fire in underground, to formation at target locations
It is heated, reduces the pipeline transport loss due to energy, and use swirl nozzle and air nozzle structure, greatly improve
The efficiency of combustion of fuel oil and the utilization rate of energy；Operating procedure is simple, and passes through burning in flame detector real-time monitoring well
Situation, controllability are strong.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of oil shale in-situ recovery well down-firing heating device.
Wherein: 1- electric-motor pump, 2- tank for gaseous or liquid substances, 3- pressure equaliser, 4- wellhead packer, 5- signal cable, 6- heating
Controller, 7- double-wall drill pipe, 8- overlying rock, the first oil shale of 9- ore bed, the second oil shale of 10- ore bed, 11- heating rod, 12-
Air nozzle, 13- swirl nozzle, 14- flame detector, 15- downhole packer.
Specific embodiment
Refering to Figure 1, oil shale recovery well is overlying rock 8 and oil shale ore bed, oil shale ore bed from top to bottom
Including the first oil shale ore bed 9 and the second oil shale ore bed 10；
Refering to Figure 1, a kind of oil shale in-situ recovery well down-firing heating device, including electric-motor pump 1, tank for gaseous or liquid substances 2,
Pressure equaliser 3, wellhead packer 4, signal cable 5, heating controller 6, double-wall drill pipe 7, heating rod 11, air nozzle
12, swirl nozzle 13, flame detector 14 and downhole packer 15；Electric-motor pump 1 includes air pump and oil pump；
Electric-motor pump 1, tank for gaseous or liquid substances 2 and pressure equaliser 3 constitute high-pressure oil gas injected system；
Heating controller 6 and the composition igniting heating TT&C system of flame detector 14；
Double-wall drill pipe 7, downhole packer 15 and signal cable 5 constitute tubing string cable system in well；Signal cable 5 is for connecting
Connect flame detector 14 and heating controller 6；
Air nozzle 12, swirl nozzle 13 and heating rod 11 constitute underground ignition system；
Pressure equaliser 3 is oil pressure and the air pressure that injection is adjusted by built-in pressure balance film, so that infusing into well
The fuel pressure and air pressure entered is consistent.
Heating controller 6 realizes the computer heating control in well by PLD control method and PCU Power Conditioning Unit.
The central passage of double-wall drill pipe 7 is the transport channel of gas, for the air required to shaft bottom conveying；Double-wall drill pipe
The annulus access of 7 inner walls and outer wall is the transfer passage of fuel oil, for fuel oil to be transported to bottom hole.
Swirl nozzle 13 is connected with the inner wall of double-wall drill pipe 7 with the annulus access of outer wall, is used for fuel-oil atmozation；
Air nozzle 12 is connected with the central passage of double-wall drill pipe 7, the combustion for generating the air stream of high speed, with atomization
Oil is sufficiently mixed, and improves the efficiency of combustion of fuel oil.
The outside of heating rod 11 is distributed with flame detector 14, the combustion case for real-time monitoring fuel oil.
Downhole packer 15 is cirque structure, and outside diameter is consistent with bore diameter, interior circular diameter and double-wall drill pipe 7
Outer diameter is consistent, for insulating wellhole, prevents underground burned flame from altering to well head, prolongs the sharp side of fuel burning to stratum
It stretches, constantly oil shale ore bed is heated.
A kind of heating means of oil shale in-situ recovery well down-firing heating device:
Air and fuel oil are conveyed into pressure equaliser 3 by air pump and oil pump first, exported after pressure balance same
Etc. pressure compressed air and fuel oil.Then compressed air injects into well through the central passage of double-wall drill pipe 7, and through air nozzle
12 generate high-speed air flow, and the annulus access between inner wall and outer wall that fuel oil passes through double-wall drill pipe 7 is delivered in well, and through revolving
Flow nozzle 13 is atomized, then is sufficiently mixed with high-speed air flow, lights fuel oil under the heat effect of heating rod 11, generation of burning
Heat is used for heating oil shale layer.Pass through the combustion case of igniting heating TT&C system real-time monitoring and control underground fuel oil.Well
Lower packet 15 makes the peak of burning extend and extend towards stratum in well, continuously heating oil shale ore bed.
Claims (1)
1. a kind of oil shale in-situ recovery well down-firing heating device, it is characterised in that: including electric-motor pump (1), tank for gaseous or liquid substances (2),
Pressure equaliser (3), wellhead packer (4), signal cable (5), heating controller (6), double-wall drill pipe (7), heating rod
(11), air nozzle (12), swirl nozzle (13), flame detector (14) and downhole packer (15)；Electric-motor pump (1) includes gas
Pump and oil pump；
Electric-motor pump (1), tank for gaseous or liquid substances (2) and pressure equaliser (3) constitute high-pressure oil gas injected system；
Heating controller (6) and flame detector (14) composition igniting heating TT&C system；
Double-wall drill pipe (7), downhole packer (15) and signal cable (5) constitute tubing string cable system in well；Signal cable (5) is used
In connection flame detector (14) and heating controller (6)；
Air nozzle (12), swirl nozzle (13) and heating rod (11) constitute underground ignition system；
Pressure equaliser (3) is oil pressure and the air pressure that injection is adjusted by built-in pressure balance film, so that injecting into well
Fuel pressure and air pressure be consistent；
The central passage of double-wall drill pipe (7) is the transport channel of gas, for the air required to shaft bottom conveying；Double-wall drill pipe
(7) annulus access of inner wall and outer wall is the transfer passage of fuel oil, for fuel oil to be transported to bottom hole；
Swirl nozzle (13) is connected with the inner wall of double-wall drill pipe (7) with the annulus access of outer wall, is used for fuel-oil atmozation；
Air nozzle (12) is connected with the central passage of double-wall drill pipe (7), the combustion for generating the air stream of high speed, with atomization
Oil is sufficiently mixed, and improves the efficiency of combustion of fuel oil；
It is distributed on the outside of heating rod (11) flame detector (14), the combustion case for real-time monitoring fuel oil；
Downhole packer (15) is cirque structure, and outside diameter is consistent with bore diameter, interior circular diameter and double-wall drill pipe (7)
Outer diameter is consistent, for insulating wellhole, prevents underground burned flame from altering to well head, prolongs the sharp side of fuel burning to stratum
It stretches, constantly oil shale ore bed is heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920186975.6U CN209569001U (en) | 2019-02-02 | 2019-02-02 | A kind of oil shale in-situ recovery well down-firing heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920186975.6U CN209569001U (en) | 2019-02-02 | 2019-02-02 | A kind of oil shale in-situ recovery well down-firing heating device |
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| Publication Number | Publication Date |
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| CN209569001U true CN209569001U (en) | 2019-11-01 |
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| CN201920186975.6U Withdrawn - After Issue CN209569001U (en) | 2019-02-02 | 2019-02-02 | A kind of oil shale in-situ recovery well down-firing heating device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707356A (en) * | 2019-02-02 | 2019-05-03 | 吉林大学 | A kind of oil shale in-situ recovery well down-firing heating device and heating means |
| CN111577228A (en) * | 2020-04-23 | 2020-08-25 | 山东瑞恒兴域石油技术开发有限公司 | Nitrogen atomization dispersion composite additive thickened oil cold production method |
| CN115095306A (en) * | 2022-06-14 | 2022-09-23 | 中国石油大学(华东) | Oil shale air/CO 2 Alternate injection in-situ combustion method and application |
-
2019
- 2019-02-02 CN CN201920186975.6U patent/CN209569001U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707356A (en) * | 2019-02-02 | 2019-05-03 | 吉林大学 | A kind of oil shale in-situ recovery well down-firing heating device and heating means |
| CN111577228A (en) * | 2020-04-23 | 2020-08-25 | 山东瑞恒兴域石油技术开发有限公司 | Nitrogen atomization dispersion composite additive thickened oil cold production method |
| CN115095306A (en) * | 2022-06-14 | 2022-09-23 | 中国石油大学(华东) | Oil shale air/CO 2 Alternate injection in-situ combustion method and application |
| CN115095306B (en) * | 2022-06-14 | 2024-04-30 | 长江大学 | Oil shale air/CO2Alternate injection in-situ combustion method and application |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191101 Effective date of abandoning: 20230425 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191101 Effective date of abandoning: 20230425 |