CN109989734A - Underground Segmented heating device - Google Patents
Underground Segmented heating device Download PDFInfo
- Publication number
- CN109989734A CN109989734A CN201910410019.6A CN201910410019A CN109989734A CN 109989734 A CN109989734 A CN 109989734A CN 201910410019 A CN201910410019 A CN 201910410019A CN 109989734 A CN109989734 A CN 109989734A
- Authority
- CN
- China
- Prior art keywords
- underground
- heating
- heating device
- traction rope
- alloy cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 37
- 239000000956 alloy Substances 0.000 claims abstract description 19
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 18
- 230000003019 stabilising effect Effects 0.000 claims abstract description 9
- 238000010304 firing Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 230000008054 signal transmission Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 24
- 239000011435 rock Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000002737 fuel gas Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005065 mining Methods 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
- 239000005416 organic matter Substances 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- 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
- E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/02—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using burners
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Piles And Underground Anchors (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention provides a kind of underground Segmented heating devices, including carving empty formula high-temperature alloy cylinder, erection device, stabilising arrangement, high-energy firing gun, traction rope, the high-energy firing gun jets out flames to heat interval of interest, the empty formula high-temperature alloy cylinder of the carving adjusts it in the position of underground by traction rope, control heating duration, realize the purpose of underground segmentally heating, erection device guarantees that the borehole wall is heated evenly with stabilising arrangement, and underground Segmented heating device proposed by the invention has the characteristics that technique is simple and direct, at low cost, energy saving, heating efficiency is high.
Description
Technical field
The invention belongs to the technical field of reservoir reconstruction during oil-gas mining more particularly to a kind of underground Segmented heatings
Device.
Background technique
Occur in traditional oil gas resource secondary production technique under the background of development, compact reservoir starts using waterpower pressure
The reservoir reconstructions measure such as split, be acidified.But the coal of heavy crude reservoir higher for colloid/asphalt content and high adsorption
For rock gas reservoir, some technical problems can be all encountered in various aspects such as development and application, the rate of oil and gas recovery is not achieved in this
Desired value, exploitation effect is barely satisfactory, and higher cost.
There is scholar to carry out a series of rock high-temperature heat treatment experiment, discovery high-temperature heat treatment can effectively improve rock
Percolation ability.In the prior art, CN206668238U discloses a kind of underground combined heated device, passes through heated by electrothermal film
Mechanism and electromagnetic wave heat energy generator carry out two-step heating to the high-temperature-hot-water and liquid oxygen-enriched of injection, realize high-temperature-hot-water
It is heated into high temperature hot steam, not only reduces energy loss, but also steam heating efficiently is carried out to purpose reservoir.But the device uses
Electric heating system need to consume a large amount of electric energy, and the hot steam injected is stranded in reservoir rock hole, and Water trapping is easily caused to damage
Evil, is difficult to release in not up to specified pressure.Therefore, it is necessary to propose a kind of Novel heating mode, it can both mitigate work
Formation damage caused by liquid, while leading to rock that thermal fracture occurs, achieve the purpose that reservoir reconstruction.Research finds to fire using flame
Burning can solve the above problems.
Summary of the invention
The invention proposes a kind of underground Segmented heating device, which is quick by combustion method, safety to close
Well band reservoir is heated, and the viscous crude of rich organic matter shale reservoir, high adsorption coal petrography reservoir and hypotonic/low saturation is stored up
Layer can all play improvement reservoir properties, promote the effect of oil gas micro flow.Meanwhile the design of segmented can make specific Reservoir Section
It is heated, achieve the purpose that segmentally heating.
The present invention provides a kind of underground Segmented heating devices, wherein the Segmented heating device technique and operation
Simple and direct, at low cost, heating efficiency is high.Main includes carving empty formula high-temperature alloy cylinder, high-energy ignition generator, burning torch, pressure
Sensor, temperature-sensing element (device), ground ventilation line, erection device.Gas injection pipeline is flammable for being filled with to underground target interval
Gas and combustion-supporting gas are carved empty formula high-temperature alloy cylinder upper surface and are sealed using the mixing material of silicon rubber and phenolic resin.The carving
Empty formula high-temperature alloy cylinder side wall is equipped with pressure-sensing device, is connected by signal-transmitting cable with ground-pressure pick-up,
The opening of erection device and stabilising arrangement is controlled simultaneously and is closed up.The high-energy ignition generator will configured with step-up transformer
220V AC voltage rises to 2500V.
Underground as described above Segmented heating device, wherein signal-transmitting cable, the high-energy igniter of pressure sensor
Firing cable, be coated with insulating layer outside gas injection pipeline.
Underground Segmented heating device as described above, wherein it is described carve be filled with inside empty formula high-temperature alloy cylinder be
The fuel gas and combustion-supporting gas being mixed in a certain ratio；The empty formula high-temperature alloy cylinder side wall of the carving be equipped with erection device and
Stabilising arrangement.
Compared with prior art present invention has the advantage that
1) generate heat by the way of burning, burn the gases such as the carbon dioxide generated can also to oil gas in reservoir into
The driving of row mixed vapour；It carves empty formula high-temperature alloy cylinder and uses High-temperature resistant alloy material, heat transfer rate is fast, is convenient for flame and burning
Product is contacted with rock of borehole in time.Upper surface is heat expanded rubber and insulated heat material, and thermal loss is few, insulates effect
Well, it can be achieved that the purpose quickly heated for destination layer position.
2) when being applied to coal petrography/shale reservoir, coal bed gas in situ or shale gas can be used as fuel gas, appropriate by injecting
The combustion-supporting gas of concentration makes flame combustion inside rock matrix and borehole wall surface.The cost of fuel gas is reduced, and is burnt
Range is wide.
3) small in size, technique is simple and direct, and device use is hung drawing mode and moved in the wellbore, realizes the mesh of underground segmentally heating
, heating effectively is carried out for target zone and success rate is high.
Detailed description of the invention
In order to more clearly from express the specific technical solution of the present invention, it is simple that one is done to schematic diagram needed for the program below
It introduces.Note that depicted herein be merely intended to a part of the embodiments of the present invention, related technical personnel can also be according to these
Attached drawing obtains other accompanying drawings.
Fig. 1 is the structural schematic diagram of underground Segmented heating device of the invention.
Fig. 2 is the structural schematic diagram of stabilising arrangement in underground Segmented heating device of the invention.
Fig. 3 is the structural schematic diagram of erection device in underground Segmented heating device of the invention.
In figure: 1,19, erection device；2, burning torch；3, pressure-sensing device；4, check valve；5, traction rope；6, ignition power
Cable；7, gas injection pipeline；8, packer；13, signal-transmitting cable；9, empty formula high-temperature alloy cylinder is carved；12,15, stabilising arrangement；
10, temperature-sensing element (device)；11, heating device top；14,21, mobile sliding block；16,20, spring；17, support rod；18,22, cunning
Wheel.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.Based on the embodiment of the present invention, those of ordinary skill is in the premise not made the creative labor
Lower gained other embodiments, category protection scope of the present invention.
As shown in Figure 1, the present invention include carve empty formula high-temperature alloy cylinder (9), erection device (1) (19), igniting rob (2),
Traction rope (5).Ground ignition generator generates flame, certain proportion mixing by firing cable (6) control underground burning torch (2)
Combustion-supporting gas and fuel gas injected by gas injection pipeline (7) into pit shaft, carving sky formula high-temperature alloy cylinder (9) top
It selects the synthetic material of silicon rubber and phenolic resin to be sealed, plays the effect of expanded by heating and partiting thermal insulation.
The erection device (1) (19) and stabilising arrangement (12) (15) are installed on alloy cylinder lateral wall, guarantee alloy cylinder position
In underground radial center position；Alloy cylinder bottom uses packer sealing；The pressure-sensing device (3) is installed in alloy cylinder
Portion is connected by signal-transmitting cable with ground-pressure pick-up；Gas injection pipeline (7) lower part is equipped with check valve (4).
Insulating layer is coated on the outside of the firing cable (6) and pressure sensor signal transmission cable (16).
The present invention in specific application, firstly, by a whole set of heating device lower going-into-well, is adjusted in a manner of drawing with traction rope by hanging
Its position in well opens centralizer and is stuck in the borehole wall, guarantees that heating device is at borehole axis position, finishing device lower end
Packer setting.The combustion-supporting gas and combustible gas of certain proportion mixing are injected by gas injection pipeline, are started ground ignition generator, are made
Obtain the flame ignition mixed gas that underground high-energy firing gun is sprayed.Pass through shape under pressure sensor and temperature sensor monitoring well
State.By controlling wellbore pressure, the exhaust gas for promoting burning to generate enters reservoir, plays the effect of miscible fluids driving.
After to be combusted, high-temperature alloy cylinder lower end packer is unsealed, device upper end sealing material and lower end seal are laid down
Pressure between device, packs up erection device and stabilising arrangement.Restore after temperature to pit shaft original temperature, hangs drawing with traction rope
For a whole set of heating device to the failed upper end closure of replaced on ground, continuing decentralization moves it in the axial direction in the wellbore, into
The combustion heating of the next purpose of horizon of row.
The foregoing is merely the schematical specific embodiment of the present invention, the range being not intended to limit the invention.All bases
It is fallen within the scope of the claimed invention in any same variation of the invention made and modification.
Claims (1)
1. a kind of underground Segmented heating device, it is characterised in that: whole set process hangs the side for drawing heating device using traction rope (5)
Formula realizes layering section heating, and heating device includes carving empty formula high-temperature alloy cylinder (9), burning torch (2), erection device (1), stablizing
Device (12), gas injection pipeline (7), pressure-sensing device (3), check valve (4), firing cable (6), signal-transmitting cable (13),
Temperature-sensing element (device) (10), packer (8), the traction rope (5) is for adjusting depth of the heating device in well, the signal
Transmission cable (13) and firing cable (7) and traction rope (5) are bound, and are equipped on the outside of the empty formula high-temperature alloy cylinder (9) of the carving
Erection device (1) (19) and stabilising arrangement (12) (15), to guarantee that heating device occupy pit shaft radial center position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910410019.6A CN109989734A (en) | 2019-05-16 | 2019-05-16 | Underground Segmented heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910410019.6A CN109989734A (en) | 2019-05-16 | 2019-05-16 | Underground Segmented heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109989734A true CN109989734A (en) | 2019-07-09 |
Family
ID=67136756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910410019.6A Pending CN109989734A (en) | 2019-05-16 | 2019-05-16 | Underground Segmented heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109989734A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110927045A (en) * | 2019-12-25 | 2020-03-27 | 重庆大学 | Long coal petrography sample gas-liquid seepage pressure chamber |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010019252A1 (en) * | 2008-08-13 | 2010-02-18 | Robertson Michael C | Consumable downhole tool |
| CN103291244A (en) * | 2013-06-21 | 2013-09-11 | 沈阳摩根能源装备有限公司 | Method for compensating thermal energy of horizontal well mining heavy oil reservoirs in large power and subsection mode in pit |
| CN103422843A (en) * | 2013-07-16 | 2013-12-04 | 燕山大学 | Device and method for burning thick oil to reduce viscosity in wellbore |
| RU2571963C1 (en) * | 2014-11-17 | 2015-12-27 | Открытое акционерное общество "Татнефть" имени В.Д. Шашина | Method for treatment of reservoir with high-viscous oil by combustible and oxidising composition |
| WO2017100354A1 (en) * | 2015-12-07 | 2017-06-15 | Morse Robert L | Increased hydrocarbon production by thermal and radial stimulation |
| CN206668238U (en) * | 2017-03-31 | 2017-11-24 | 中嵘能源科技集团有限公司 | Underground combined heated device |
| CN109184648A (en) * | 2018-09-12 | 2019-01-11 | 中国石油天然气股份有限公司 | Mobile electric igniter |
| 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 |
| CN210033396U (en) * | 2019-05-16 | 2020-02-07 | 西南石油大学 | Underground sectional type heating device |
-
2019
- 2019-05-16 CN CN201910410019.6A patent/CN109989734A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010019252A1 (en) * | 2008-08-13 | 2010-02-18 | Robertson Michael C | Consumable downhole tool |
| CN103291244A (en) * | 2013-06-21 | 2013-09-11 | 沈阳摩根能源装备有限公司 | Method for compensating thermal energy of horizontal well mining heavy oil reservoirs in large power and subsection mode in pit |
| CN103422843A (en) * | 2013-07-16 | 2013-12-04 | 燕山大学 | Device and method for burning thick oil to reduce viscosity in wellbore |
| RU2571963C1 (en) * | 2014-11-17 | 2015-12-27 | Открытое акционерное общество "Татнефть" имени В.Д. Шашина | Method for treatment of reservoir with high-viscous oil by combustible and oxidising composition |
| WO2017100354A1 (en) * | 2015-12-07 | 2017-06-15 | Morse Robert L | Increased hydrocarbon production by thermal and radial stimulation |
| CN206668238U (en) * | 2017-03-31 | 2017-11-24 | 中嵘能源科技集团有限公司 | Underground combined heated device |
| CN109184648A (en) * | 2018-09-12 | 2019-01-11 | 中国石油天然气股份有限公司 | Mobile electric igniter |
| 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 |
| CN210033396U (en) * | 2019-05-16 | 2020-02-07 | 西南石油大学 | Underground sectional type heating device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110927045A (en) * | 2019-12-25 | 2020-03-27 | 重庆大学 | Long coal petrography sample gas-liquid seepage pressure chamber |
| CN110927045B (en) * | 2019-12-25 | 2020-09-25 | 重庆大学 | Long coal petrography sample gas-liquid seepage pressure chamber |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190709 |