CN106016357A - In-situ combustion ignition device and method for vertical shaft - Google Patents
In-situ combustion ignition device and method for vertical shaft Download PDFInfo
- Publication number
- CN106016357A CN106016357A CN201610558662.XA CN201610558662A CN106016357A CN 106016357 A CN106016357 A CN 106016357A CN 201610558662 A CN201610558662 A CN 201610558662A CN 106016357 A CN106016357 A CN 106016357A
- Authority
- CN
- China
- Prior art keywords
- laser
- ignition
- oil
- oil pipe
- lighter
- 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
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 19
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000010304 firing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000006213 oxygenation reaction Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000011343 solid material Substances 0.000 claims description 2
- 230000004913 activation Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 28
- 239000007789 gas Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002269 spontaneous effect Effects 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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q21/00—Devices for effecting ignition from a remote location
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lighters Containing Fuel (AREA)
Abstract
The invention discloses an in-situ combustion ignition device and method for a vertical shaft. The device comprises a shaft mouth laser transmitter, an oil pipe, a casing pipe, a high-temperature separator and an igniter. The ignition method includes the steps that the igniter is put into the oil pipe; after the igniter descends to the bottom of the oil pipe, the shaft mouth laser transmitter is started, a laser ignites combustible substances in the igniter and releases heat continuously; and thickened oil at the bottom of the shaft is ignited further. By means of the in-situ combustion laser ignition method, activation of an oil deposit can be effectively reduced, ignition equipment and an underground pipe column are protected, fast ignition is achieved, the ignition successful rate is increased, and a wider application range is provided for in-situ combustion development.
Description
Technical field
The present invention relates to a kind of combustion in situ firing technique, a kind of Vertical Well combustion in situ laser-ignition unit and method.
Background technology
Combustion in situ is to inject well by baked wheaten cake air or oxygen is injected in oil reservoir, it is made to react with heavy component in a part of oil reservoir in oil reservoir, utilize heat that reaction produces and reaction end gas that crude oil displaces ground, and this process realizes continuable it is crucial that oil layer ignition.At present, the sparking mode used mainly has spontaneous ignition, chemic ignition and three kinds of modes of electric ignition, wherein electric ignition is a kind of sparking mode that application is most, existing electric ignition technology, owing to being limited to firing cable, lighter, lighter rountrip condition of compatibility and the restriction of equipment, typically require the well depth < 1000m of combustion in situ igniting gas injection well, pressure < the oil well of 10MPa, and which greatly limits fireflood reservoir exploitation difficulty and employ the subject range of oil reservoir, and in ignition process, monitoring cable to enter from sleeve pipe, rountrip risk is bigger, overall process can not be realized, the monitoring in complete section face.Therefore, it is necessary to provide a kind of new ignition method and device, exciting with the oil reservoir realized in comprehensive monitoring, rapid-ignition, minimizing ignition process, improve fireflood ignition results, and being applicable to the heavy crude reservoir after handling up, the exploitation for combustion in situ provides the wider array of scope of application.
Summary of the invention
It is an object of the invention to provide a kind of combustion in situ rapid-ignition, the wider array of laser-ignition unit of the scope of application and method.
To achieve these goals, the present invention provides a kind of Vertical Well laser-ignition unit, this device is made up of well head generating laser, oil pipe, sleeve pipe, high temperature separator, lighter, it is characterized in that: well head laser beam emitting device is placed in glossy surface, sleeve pipe gos deep into oil reservoir, oil pipe is arranged in sleeve pipe, and high temperature well head separator is placed between the sleeve pipe above oil reservoir and oil pipe, and lighter is placed in inside the oil reservoir below oil pipe.
In one embodiment, described sleeve pipe is a diameter of: φ=177.80mm.
In one embodiment, described oil pipe is a diameter of: φ=88.9mm.
In one embodiment, employing Flammable Solid Class 4.1 material composition around described lighter, bottom uses the solid material composition of absorption steam, it is a diameter of: φ=75.3mm, around it is marked with the circular hole of 4 φ=1.2mm, it is according to the difference of oil reservoir, is placed with the incendiary agent of 300-600 gram and 100-200 gram of oxygenation agent inside it respectively, and after its burning, temperature is up to 250 DEG C～350 DEG C.
In one embodiment, described well head laser-ignition unit launches the laser difference according to well depth, and its point of irradiation temperature reaches 150 DEG C.
To achieve these goals, present invention also offers a kind of Vertical Well combustion in situ laser ignition method, described ignition method includes:
Described lighter is placed in contact oil reservoir position bottom described oil pipe；
Lasing intensity and ignitor firing time is calculated according to described tubing depth and internal gas concentration；
Start described well head generating laser until after more than ignitor firing time, closing, recalling well head generating laser.
The invention has the beneficial effects as follows: lighter is put into oil pipe, treat that lighter drops to bottom oil pipe, start well head generating laser, laser is lighted the internal combustible of lighter and persistently releases heat, and ignite shaft bottom viscous crude further.It is exciting that the combustion in situ laser ignition method that the present invention provides is effectively reduced oil reservoir, protection ignition installation and down-hole string, it is achieved rapid-ignition, improves ignition success rate, and the exploitation for combustion in situ provides the wider array of scope of application.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1, Fig. 2 are the structural representations of the present invention.
In Fig. 1: 1. well head generating laser, 2. oil pipe, 3. sleeve pipe, 4. high temperature separator, 5. lighter.
In Fig. 2: 5. lighter.
Detailed description of the invention
Well head generating laser (1) is placed in directly over oil pipe (2), sleeve pipe (3) gos deep into oil reservoir, oil pipe (2) is arranged in described sleeve pipe, high temperature well head separator (4) is placed between the sleeve pipe (3) above oil reservoir and oil pipe (2), lighter (5) is put into oil pipe (2), treats that lighter (5) drops to bottom oil pipe, start well head generating laser (1), laser is lighted the internal combustible of lighter (5) and persistently releases heat, and ignite shaft bottom viscous crude.
Claims (6)
1. Vertical Well combustion in situ igniter and a method, this device is made up of well head generating laser, oil pipe, sleeve pipe, high temperature separator, lighter, it is characterised in that described well head laser beam emitting device is placed in directly over oil pipe；Described sleeve pipe gos deep into oil reservoir；Described oil pipe is arranged in described sleeve pipe, and described high temperature well head separator is placed between the sleeve pipe above oil reservoir and oil pipe；Described lighter is placed in inside the oil reservoir below oil pipe.
Vertical Well combustion in situ laser-ignition unit the most according to claim 1, it is characterised in that described sleeve pipe straight
Footpath is: φ=177.80mm.
Vertical Well combustion in situ laser-ignition unit the most according to claim 1, it is characterised in that described oil pipe straight
Footpath is: φ=88.9mm.
4. according to the lighter described in claim 1, it is characterized in that, employing Flammable Solid Class 4.1 material composition around described lighter, bottom uses the solid material composition of absorption steam, it is a diameter of: φ=75.3mm, is around marked with the circular hole of 4 φ=1.2mm, and it is according to the difference of oil reservoir, being placed with the incendiary agent of 300-600 gram and 100-200 gram of oxygenation agent inside it respectively, after its burning, temperature is up to 250 DEG C～350 DEG C.
Vertical Well combustion in situ laser-ignition unit the most according to claim 1, it is characterised in that described well head laser-ignition unit launches the laser difference according to well depth, and its point of irradiation temperature reaches 150 DEG C.
6. a Vertical Well combustion in situ laser ignition method, is applied to the Vertical Well laser-ignition unit described in claim 1, it is characterised in that described ignition method includes:
Described lighter is placed in contact oil reservoir position bottom described oil pipe；
Lasing intensity and ignitor firing time will be calculated according to described tubing depth and internal gas concentration；
Start described well head generating laser until after more than ignitor firing time, closing, recalling well head generating laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610558662.XA CN106016357A (en) | 2016-07-16 | 2016-07-16 | In-situ combustion ignition device and method for vertical shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610558662.XA CN106016357A (en) | 2016-07-16 | 2016-07-16 | In-situ combustion ignition device and method for vertical shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106016357A true CN106016357A (en) | 2016-10-12 |
Family
ID=57119068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610558662.XA Pending CN106016357A (en) | 2016-07-16 | 2016-07-16 | In-situ combustion ignition device and method for vertical shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106016357A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195994A (en) * | 2018-01-19 | 2018-06-22 | 国网安徽省电力有限公司电力科学研究院 | A kind of electric shaft partition board fire resistance detection platform |
| CN109237513A (en) * | 2018-08-29 | 2019-01-18 | 西安石油大学 | A kind of depth well use multistage solid fuel igniter |
-
2016
- 2016-07-16 CN CN201610558662.XA patent/CN106016357A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195994A (en) * | 2018-01-19 | 2018-06-22 | 国网安徽省电力有限公司电力科学研究院 | A kind of electric shaft partition board fire resistance detection platform |
| CN109237513A (en) * | 2018-08-29 | 2019-01-18 | 西安石油大学 | A kind of depth well use multistage solid fuel igniter |
| CN109237513B (en) * | 2018-08-29 | 2024-01-26 | 西安石油大学 | Multistage solid fuel igniter for deep well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161012 |