CN106499377A - Electric ignition system - Google Patents
Electric ignition system Download PDFInfo
- Publication number
- CN106499377A CN106499377A CN201610892224.7A CN201610892224A CN106499377A CN 106499377 A CN106499377 A CN 106499377A CN 201610892224 A CN201610892224 A CN 201610892224A CN 106499377 A CN106499377 A CN 106499377A
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- pressure
- temperature
- continuous pipe
- electric
- electric igniter
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- 238000002347 injection Methods 0.000 claims abstract description 63
- 239000007924 injection Substances 0.000 claims abstract description 63
- 238000007789 sealing Methods 0.000 claims abstract description 41
- 238000012544 monitoring process Methods 0.000 claims abstract description 34
- 230000008859 change Effects 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims description 59
- 230000003287 optical effect Effects 0.000 claims description 22
- 238000009530 blood pressure measurement Methods 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 16
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 11
- 239000011707 mineral Substances 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 230000004888 barrier function Effects 0.000 claims description 7
- 239000012774 insulation material Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 239000000395 magnesium oxide Substances 0.000 claims description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 4
- 230000009466 transformation Effects 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 210000003437 trachea Anatomy 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 238000011161 development Methods 0.000 abstract description 2
- 239000000295 fuel oil Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 239000003129 oil well Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- MGCQZNBCJBRZDT-UHFFFAOYSA-N midodrine hydrochloride Chemical compound [H+].[Cl-].COC1=CC=C(OC)C(C(O)CNC(=O)CN)=C1 MGCQZNBCJBRZDT-UHFFFAOYSA-N 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000243 solution Substances 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
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
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)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention provides a high-power electric ignition system suitable for heavy oil ultra-deep well fire development, which comprises a ground power supply system, a double-channel well mouth sealing blowout preventer, a coiled tubing cable, a temperature and pressure monitoring coiled tubing, a coiled tubing tripping operation device, a fire well mouth, an air injection system, an air injection pipe column, an electric igniter and a temperature and pressure monitoring center, wherein when the coiled tubing tripping operation device operates, the temperature and pressure monitoring coiled tubing is firstly tripped into the air injection pipe column through a first channel of the double-channel well mouth sealing blowout preventer, then the coiled tubing cable and the electric igniter are tripped into the air injection pipe column through a second channel, the coiled tubing cable is in equal-diameter connection with the electric igniter, the ground power supply system supplies power to the electric igniter through the coiled tubing cable, the temperature and pressure change monitoring center monitors the heating temperature and pressure change at the electric ignition system, the heating power is adjusted, and the sealing performance of the well mouth during safe operation at high pressure is ensured, so that the electric ignition system is safe and reliable.
Description
Technical field
A kind of the present embodiments relate to thickened oil recovery equipment technical field, more particularly to electric ignition system.
Background technology
With the continuous development of fireflood oil well technology, electric igniter arises at the historic moment.At present, fireflood application electric igniter is main
There are cluster electric igniter and retrievable oil well electric igniter.
In the application of cluster electric igniter, purpose of horizon will be entered under lighter using tubing string, its power cable is bonded to
It is connected with ground control cabinet on oil pipe, as gas injection tube column was not risen out within the whole production cycle.During being somebody's turn to do, need by electricity
Cable is bundled in cluster electric igniter on oil pipe, is then lowered into purpose of horizon to carry out cluster electric igniter from well head
Igniting operation, electric igniter and the power connector of power cable, cause wellhead sealing to there is not high voltage bearing potential safety hazard.Desirable
In the application of formula oil well electric igniter, lighter can not accomplish completely with pressure remove, equally exist not high voltage bearing asking
Topic.
Content of the invention
The present invention provides a kind of electric ignition system, it is adaptable to which exploitation burnt by viscous crude ultradeep well.
The embodiment of the present invention provides a kind of high-power electric ignition system for burning exploitation suitable for viscous crude ultradeep well, including：
Ground power supply system, binary channel wellhead sealing blowout hookup, continuous pipe cable, the continuous pipe of temperature and pressure monitoring, continuous pipe rountrip
Device, gas injection system, baked wheaten cake well head, gas injection tube column, electric igniter and temperature and pressure Surveillance center, wherein,
The ground power supply system is connected with the continuous pipe cable, for providing single-phase electricity；
The continuous pipe cable and the isometrical connection of the electric igniter, for by the single-phase electrical transmission to the electric ignition
Device；
The binary channel wellhead sealing blowout hookup is arranged on above the baked wheaten cake well head；
The continuous pipe rountrip device is used for will by the first path of the binary channel wellhead sealing blowout hookup
The temperature and pressure are monitored and enter the gas injection tube column under continuous pipe, then by the alternate path of the binary channel wellhead sealing blowout hookup
The gas injection tube column will be entered under the continuous pipe cable and the electric igniter successively；
The gas injection tube column is arranged in the production casing that burns below well head, and the gas injection system passes through the fire
Burn well head to be connected with the gas injection tube column, between the inwall of the outer wall and sleeve pipe of the gas injection tube column, form oil jacket annular space；
The temperature and pressure Surveillance center monitors continuous pipe with the temperature and pressure and is connected, for gathering simultaneously monitoring temperature, pressure signal.
In a kind of feasible implementation, cold end is set on the electric igniter, the continuous pipe cable is by described
Cold end and the isometrical connection of the electric igniter.
In a kind of feasible implementation, the cold end is filled by magnesium oxide mineral insulation.
In a kind of feasible implementation, the ground power supply system includes three change single control systems and pressure regulation transformation
Device, the three change single controls system are used for for three-phase electricity being converted to the single-phase electricity, and the adjustable transformer is used for the list
Mutually electric pressure regulation transformation.
In a kind of feasible implementation, the binary channel wellhead sealing blowout hookup includes the multistage dynamic sealing of first set
Device, second set of multi-stage sealed device and the safe preventer of binary channel, wherein,
The multistage dynamic sealer of the first set is used for sealing that the temperature and pressure monitoring is continuous to manage；
Second set of multistage dynamic sealer is used for sealing the continuous pipe cable and the electric igniter；
The safe preventer of the binary channel is provided with first path and the alternate path.
In a kind of feasible implementation, the continuous pipe cable is from the inside to the outside as interior shaft core line, insulating barrier, outer
Layer heart yearn, continuous pipe cable protecting tube.
In a kind of feasible implementation, the electric igniter includes：Resistance wire, mineral insulation material and electric ignition
Device pillar, the resistance wire are arranged in the electric igniter pillar, and the mineral insulation material is filled in the electric igniter
In pillar.
In a kind of feasible implementation, the heatproof of the electric igniter pillar is at least 1050 DEG C, the resistance wire
Heatproof be at least 1150 DEG C.
In a kind of feasible implementation, the temperature and pressure monitor continuous pipe to be included：Temperature and pressure monitoring is continuously managed and protected, light
Cable, pressure measurement capillary tube and standby capillary tube, the optical cable, the pressure measurement capillary tube, the standby capillary tube are arranged on the temperature
Pressure monitoring is continuously managed and protected in pipe.
In a kind of feasible implementation, the gas injection system include nitrogen-filling system, air compressor, oxygen reduction apparatus with
And supercharger, during igniting, the air compressor and the supercharger provide sky by the gas injection tube column for the electric igniter
Gas, during fire extinguishing, the nitrogen-filling system provides phlogisticated air or nitrogen by the gas injection tube column for the electric igniter.
In a kind of feasible implementation, the temperature and pressure Surveillance center includes thermometric optical transmitter and receiver, pressure transducer sum
According to acquisition system, the optical cable that the thermometric optical transmitter and receiver monitors continuous pipe with the temperature and pressure is connected, for collection and monitoring temperature number
According to the pressure measurement capillary tube that the pressure transducer monitors continuous pipe with the temperature and pressure is connected, for monitoring pressure signal change
Change, the data collecting system is connected with the pressure transducer, for gathering and monitoring pressure data.
A kind of electric ignition system provided in an embodiment of the present invention, including ground power supply system, binary channel wellhead sealing blowout prevention
Device, continuous pipe cable, the continuous pipe of temperature and pressure monitoring, continuous pipe rountrip device, baked wheaten cake well head, gas injection system, gas injection tube column,
Temperature and pressure, during continuous pipe rountrip device operation, are first monitored continuous Gutron and cross binary channel by electric igniter and temperature and pressure Surveillance center
Enter in gas injection tube column under first path of wellhead sealing blowout hookup, then continuous pipe cable is led to by second with electric igniter
Road is lowered in gas injection tube column, continuous pipe cable and the isometrical connection of electric igniter, ground power supply system by continuous pipe cable to
Electric igniter is powered, and the optical cable and pressure measurement capillary tube that temperature and pressure Surveillance center monitors continuous pipe with temperature and pressure is connected respectively, and temperature and pressure are monitored
Continuous pipe is monitored centrally through temperature and pressure to monitor the heating-up temperature at electric ignition system, pressure change, heating power is adjusted.Due to
Continuous pipe cable and the isometrical connection of electric igniter so that continuous pipe cable is integrated with electric igniter, and high pressure sealing has continuous
Property and globality, it is ensured that the sealing of high pressure during well head safe operation so that electric ignition system is safe and reliable.Meanwhile, compare
In cluster electric igniter, in the system, electric igniter is not limited by cable transmission, in can entering to ultradeep well below, can
It is applied to viscous crude ultradeep well；Compared to retrievable oil well lighter, the company of removing can be carried out in well head pressure≤69MPa
Continuous pipe cable monitors continuous pipe operation with electric igniter and temperature and pressure, significantly shortens construction period, continuous pipe cable and electric ignition
Device and temperature and pressure monitor the pressure performance of continuous pipe, again such that during electric ignition system can enter to ultradeep well down, can be applied to
Viscous crude ultradeep well (below 1500m).
Description of the drawings
In order to be illustrated more clearly that the technical scheme of the inventive method embodiment, below will be to wanting needed for embodiment description
The accompanying drawing for using is briefly described, it should be apparent that, drawings in the following description are some embodiments of the inventive method,
For those skilled in the art, on the premise of not paying creative work, can be obtaining other according to these accompanying drawings
Accompanying drawing.
The structural representation of the electric ignition system that Fig. 1 is provided for one embodiment of the invention；
The structural representation of the continuous pipe cable in the electric ignition system that Fig. 2A is provided for one embodiment of the invention；
3-D views of Fig. 2 B for Fig. 2A；
The structural representation of the electric igniter that Fig. 3 A are provided for one embodiment of the invention；
3-D views of Fig. 3 B for Fig. 3 A；
Fig. 4 is the schematic diagram of resistance wire in one embodiment of the invention；
Fig. 5 A monitor the structural representation of continuous pipe for the temperature and pressure that one embodiment of the invention is provided；
3-D views of Fig. 5 B for Fig. 5 A；
Description of reference numerals：
1：Ground power supply system；
2：Binary channel wellhead sealing blowout hookup；
3：Continuous pipe cable；
4：Temperature and pressure monitoring is continuous to manage；
5：Continuous pipe rountrip device；
6：Gas injection system；
7：Burn well head；
8：Gas injection tube column；
9：Electric igniter；
10：Temperature and pressure Surveillance center；
31：Interior shaft core line；
32：Insulating barrier；
33：Outer layer heart yearn；
34：Continuous pipe cable protecting tube；
41：Resistance wire；
42：Mineral insulation material；
43：Electric igniter pillar.
51：Temperature and pressure monitoring is continuously managed and protected；
52：Optical cable；
53：Pressure measurement capillary tube；
54：Standby capillary tube.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention is clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, to the embodiment of the present invention in technical scheme be clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than whole embodiments.Embodiment in based on the present invention, those skilled in the art are not having
There is the every other embodiment obtained under the premise of making creative work, belong to the scope of protection of the invention.
The structural representation of the electric ignition system that Fig. 1 is provided for one embodiment of the invention.Below, in conjunction with Fig. 1 to the present invention
The structure and working principle of the electric ignition system described in embodiment is described in detail.
First, the structure of electric ignition system.
Fig. 1 is refer to, the electric ignition system that the present invention is provided includes：Ground power supply system 1, binary channel wellhead sealing blowout prevention
Device 2, continuous pipe cable 3, temperature and pressure monitor continuous pipe 4, continuous pipe rountrip device 5, gas injection system 6, burn well head 7, note
Trachea post 8, electric igniter 9, temperature and pressure Surveillance center 10, wherein, the ground power supply system 1 is connected with the continuous pipe cable 3,
For providing single-phase electricity；The continuous pipe cable 3 and 9 isometrical connection of the electric igniter, for by the single-phase electrical transmission extremely
The electric igniter 9；The binary channel wellhead sealing blowout hookup 2 is arranged on above the baked wheaten cake well head 7, and the continuous pipe rises
Lower apparatus for work 5 is used for, by the first path of the binary channel wellhead sealing blowout hookup 2, the temperature and pressure are monitored continuous pipe 4
Under enter the gas injection tube column 8, then through the binary channel wellhead sealing blowout hookup 2 alternate path successively by the continuous pipe
Enter the gas injection tube column 8 under cable 3 and the electric igniter 9；The gas injection tube column 8 is arranged on below the baked wheaten cake well head 7
In production casing, the gas injection system 6 is connected with the gas injection tube column 8 by the baked wheaten cake well head 7, the gas injection tube column 8
Oil jacket annular space is formed between outer wall and the inwall of sleeve pipe, i.e., described gas injection system 6 is connected with the baked wheaten cake well head 7 and is formed described
8 gas injection of gas injection tube column and oil jacket annular air injection two paths, the optical cable that the temperature and pressure are monitored in continuous pipe 4 are monitored with the temperature and pressure
The thermometric optical transmitter and receiver connection at center 10, for gathering simultaneously monitoring temperature, pressure signal.Wherein, thermometric optical transmitter and receiver is, for example, to be distributed
Formula temperature sensor (Distributed Temperature Sensing, DTS).
Secondly, the operation principle of electric igniter.
Specifically, in electric ignition operation process, ground power supply system 1 is supplied to electric igniter 9 by continuous pipe cable 3, should
Lighter is, for example, viscous crude ultradeep well 2100m well depths, the electric igniter at pressure≤69 MPa (MPa) place.Continuous pipe rountrip
Device 5 is skid structure, monitors continuous pipe 4, continuous pipe cable 3 and electric igniter 9 for removing temperature and pressure successively.Under enter process
In, temperature and pressure are monitored continuous pipe 4 by the binary channel wellhead sealing blowout hookup 2 first by continuous pipe rountrip device 5
Enter under path in gas injection tube column 8, the first path is, for example, the path of 20mm, and temperature and pressure are monitored continuous pipe 4 by first path
It is lowered at the 2100m of air injection pipe 8, continuous pipe cable 3 and electric igniter 9 is lowered into gas injection tube column by alternate path then
In 8, alternate path is, for example, the path of 25.4mm, and continuous pipe cable 3 and electric igniter 9 are lowered into note by the alternate path
At the 2100m of trachea 8 so that temperature and pressure are monitored continuous pipe 4, the continuous pipe cable 3 and are in gas injection tube column 8 together with electric igniter 9
Interior, the optical cable that the temperature and pressure are monitored in continuous pipe 4 is connected with the DTS thermometric optical transmitter and receivers of the temperature and pressure Surveillance center 10, for adopting
Collection monitoring temperature, pressure signal.When electric ignition system gathers heating by temperature and pressure Surveillance center 10, the temperature in shaft bottom, pressure become
Change data, adjust heating power and gas injection rate.Gas injection tube column 8 is arranged on inside the production casing that burns below well head 7, as note
Gas passage simultaneously accommodates the continuous pipe 4 of the continuous pipe cable 3, the electric igniter 9 and temperature and pressure monitoring.The baked wheaten cake well head 7
It is applied to combustion soaking/fireflood well, is installed on ground, bottom connection sleeve pipe and oil pipe, forms the gas injection tube column and oil jacket ring
Sky, top install the binary channel wellhead sealing blowout hookup, and both sides connect the gas injection pipeline of the gas injection system 6.The note
Gas system 6 is installed near well head, by gas injection pipeline with described baked wheaten cake well head 7 be connected, and respectively with the gas injection tube column 8 and
The oil jacket annular space connection.
Electric ignition system provided in an embodiment of the present invention, including ground power supply system, binary channel wellhead sealing blowout hookup,
Continuous pipe cable, the continuous pipe of temperature and pressure monitoring, continuous pipe rountrip device, baked wheaten cake well head, gas injection system, gas injection tube column, electric point
Temperature and pressure, during continuous pipe rountrip device operation, are first monitored continuous Gutron and cross binary channel well head by firearm and temperature and pressure Surveillance center
Enter in gas injection tube column under first path of sealing blowout hookup, then continuous pipe cable is passed through under alternate path with electric igniter
Enter in gas injection tube column, continuous pipe cable and the isometrical connection of electric igniter, ground power supply system is by continuous pipe cable to electric point
Firearm is powered, and temperature and pressure Surveillance center monitors continuous pipe by temperature and pressure and the heating-up temperature at electric ignition system, pressure change are monitored,
Adjustment heating power.Due to continuous pipe cable and the isometrical connection of electric igniter so that continuous pipe cable is integrated with electric igniter,
High pressure sealing has seriality and globality, it is ensured that the sealing of high pressure during well head safe operation so that electric ignition system is pacified
Complete reliable.Meanwhile, compared to cluster electric igniter, in the system, electric igniter is not limited by cable transmission, can be entered below
Into ultradeep well, viscous crude ultradeep well can be applied to；Compared to retrievable oil well lighter, can well head pressure≤
Carry out removing continuous pipe cable and electric igniter and temperature and pressure monitoring continuous pipe operation during 69MPa, significantly shorten construction period, even
The pressure performance of continuous pipe monitored by continuous pipe cable with electric igniter and temperature and pressure, again such that electric ignition system can enter to ultra-deep down
In well, viscous crude ultradeep well (below 1500m) can be applied to.
In general, substantially 300 DEG C of the heatproof of continuous pipe cable 3, damage continuous pipe cable during for avoiding lighting a fire, optional
, in one embodiment of the invention, cold end is set on electric igniter 9, continuous pipe cable 3 is isometrical with electric igniter 9 by cold end
Connection.
Specifically, it is assumed that the length of electric igniter 9 is 90m, can connect one end of continuous pipe cable 3 in electric igniter 9,
Increase the cold end of certain length, for example, cold end increasing 30m length, being filled by magnesium oxide mineral insulation material, so as to protect
Heatproof is 300 DEG C of continuous pipe cable.After increasing cold end, the heating power of electric igniter 9 is adjusted, 5000 are reached in gas injection rate～
25000m3During/d, heating-up temperature reaches 600 DEG C.
Optionally, in one embodiment of the invention, the ground power supply system 1 includes：Three become single control system and pressure regulation change
Depressor, the three change single controls system are used for for three-phase electricity being converted to the single-phase electricity, and the adjustable transformer is used for described
Single-phase electricity pressure regulation transformation.
Specifically, become the three-phase electricity that single control systems will be input into by three, the alternating current of such as 380V, 50HZ be converted to 1560V,
The unidirectional electricity of 500HZ, 200KW, this unidirectional electricity via after adjustable transformer by third gear classification output, no-load voltage ratio be 25/14,32/14,
39/14.In actual job, the single-phase electricity of different no-load voltage ratios can be selected to use for down-hole electric igniter according to practical situation.
Optionally, in one embodiment of the invention, the binary channel wellhead sealing blowout hookup 2 includes that first set is multistage dynamic close
Envelope device, second set of multistage dynamic sealer and the safe preventer of binary channel.Wherein, the multistage dynamic sealer of first set is described for sealing
Temperature and pressure monitor the dynamic sealing device that continuous pipe 4, the i.e. multistage dynamic sealer of first set are that temperature and pressure monitor continuous 4 rountrip of pipe, institute
Stating second set of multistage dynamic sealer is used for sealing the continuous pipe cable with set multistage dynamic sealer of the electric igniter, i.e., second
It is the dynamic sealing device of continuous pipe cable 3 and 9 rountrip of electric igniter, two sets of multistage dynamic sealing devices can be with pressure
69MPa, 250 DEG C of heatproof；The safe preventer of binary channel is the safety aid for considering installation from well control safety, with continuous pipe
The first path of continuous 4 rountrip of pipe monitored by cable 3 with the alternate path of 9 rountrip of electric igniter and temperature and pressure, and which is resistance to
Press as 69MPa, heatproof is 250 DEG C.
Optionally, in one embodiment of the invention, the continuous pipe cable 3 is for being followed successively by interior shaft core line 31, absolutely from the inside to the outside
Edge layer 32, outer layer heart yearn 33, the coaxial cable of continuous pipe cable protecting tube 34.Specifically, Fig. 2A and Fig. 2 B can be found in, and Fig. 2A is this
The structural representation of the continuous pipe cable in the electric ignition system of embodiment offer, 3-D views of Fig. 2 B for Fig. 2A are provided.
Fig. 2A and Fig. 2 B are refer to, continuous pipe cable 3 is followed successively by interior shaft core line 31, insulating barrier 32, outer layer core from the inside to the outside
Line 33, the coaxial cable of continuous pipe cable protecting tube 34.Wherein, interior shaft core line 31 is, for example, 30mm2, insulating barrier 32 is, for example, heatproof
For 300 DEG C of insulating barrier, outer layer heart yearn 33 is, for example, 30mm2Copper multicore outer layer heart yearn, continuous pipe cable protecting tube 34 is, for example,
The special 10CMn pillars of φ 25.4mm.
Optionally, in one embodiment of the invention, the electric igniter 9 includes：Resistance wire 41, mineral insulation material 42 and
Electric igniter pillar 43, the resistance wire 41 are arranged in the electric igniter pillar 43, and the mineral insulation material 42 is filled
In the electric igniter pillar 43.Specifically, Fig. 3 A and Fig. 3 B, the electric point that Fig. 3 A are provided for one embodiment of the invention can be found in
The structural representation of firearm, 3-D views of Fig. 3 B for Fig. 3 A..
Specifically, Fig. 3 A and Fig. 3 B refer to, and resistance wire 41 is, for example, make using nickel filament alloy material, high temperature resistant
Resistance wire more than 1150 DEG C, have the advantages that high mechanical strength, good toughness, reusable, heating power is up to 200kw,
Corresponding huge discharge 5000～25000m of gas injection3During/d, 600 DEG C of heating-up temperature is can reach.
Optionally, in one embodiment of the invention, the heatproof of the electric igniter pillar 43 is at least 1050 DEG C, the resistance
The heatproof of silk 41 is at least 1150 DEG C, and resistance wire 41 is, for example, nickel filament (such as Cr15Ni60) or siderochrome silk etc.；Mineral insulation thing
Matter is magnesium oxide.
Optionally, in one embodiment of the invention, above-mentioned resistance wire 41 is U-shaped.Specifically, Fig. 4 can be found in, and Fig. 4 is this
Invent the schematic diagram of resistance wire in an embodiment.
Optionally, in one embodiment of the invention, the temperature and pressure monitor continuous pipe 4 to be included：Temperature and pressure monitoring continuously manage and protect pipe 51,
Optical cable 52, pressure measurement capillary tube 53 and standby capillary tube 54, the optical cable 52 are arranged on the temperature and pressure monitoring and continuously manage and protect in pipe 51,
The pressure measurement capillary tube 53 is continuously managed and protected in pipe 51 in temperature and pressure monitoring, and the standby capillary tube 54 connects in temperature and pressure monitoring
Continue and manage and protect in pipe 51.Specifically, Fig. 5 A and Fig. 5 B, the structure of the electric igniter that Fig. 5 A are provided for one embodiment of the invention can be found in
Schematic diagram, 3-D views of Fig. 5 B for Fig. 5 A.
Specifically, the diameter that pipe 51 is continuously managed and protected in temperature and pressure monitoring is, for example, 20mm, and the diameter of optical cable 52 is, for example, 6.35mm
Optical fiber, which for example can for example be 6.35mm for the diameter of optical fiber, pressure measurement capillary tube 53 and standby capillary tube 54, and be
Blank pipe, the pressure guiding joint that continuous bottom of the tube is monitored with temperature and pressure in the bottom of pressure measurement capillary tube 53 are connected, the top of pressure measurement capillary tube 53
Being connected with the sensor of temperature and pressure Surveillance center carries out pressure measurement, standby capillary tube 54 as standby, in pressure measurement capillary tube 53 therefore
Enable during barrier.
Optionally, in one embodiment of the invention, the gas injection system 6 includes nitrogen-filling system, air compressor, oxygen reduction apparatus
And supercharger, during igniting, the air compressor and the supercharger are provided for the electric igniter by the gas injection tube column
Air, during fire extinguishing, the nitrogen-filling system provides phlogisticated air or nitrogen by the oil jacket annular space for the electric igniter, in addition,
By oil jacket annular space nitrogen injection, it is also prevented from climbing fire.
Optionally, in one embodiment of the invention, the temperature and pressure Surveillance center 10 include thermometric optical transmitter and receiver, pressure transducer and
Data collecting system, the optical cable that the thermometric optical transmitter and receiver monitors continuous pipe with the temperature and pressure are connected, for collection and monitoring temperature
Data, the pressure measurement capillary tube that the pressure transducer monitors continuous pipe with the temperature and pressure are connected, for monitoring pressure signal
Change, the data collecting system is connected with the pressure transducer, for gathering and monitoring pressure data.
Summary understands, electric ignition system provided in an embodiment of the present invention, electric igniter and the isometrical knot of continuous pipe cable
Structure connects, and by binary channel wellhead sealing blowout hookup lower going-into-well so that electric ignition system in well head pressure can be
Can remove safely during 69Mpa.In addition, hot spot position can be adjusted in use.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of above-mentioned each method embodiment can be led to
Cross the related hardware of programmed instruction to complete.Aforesaid program can be stored in a computer read/write memory medium.The journey
Sequence upon execution, executes the step of including above-mentioned each method embodiment；And aforesaid storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above only in order to technical scheme to be described, rather than a limitation；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (11)
1. a kind of electric ignition system, it is characterised in that include：Ground power supply system, binary channel wellhead sealing blowout hookup, continuous
Pipe cable, the continuous pipe of temperature and pressure monitoring, continuous pipe rountrip device, gas injection system, baked wheaten cake well head, gas injection tube column, electric igniter
And temperature and pressure Surveillance center, wherein,
The ground power supply system is connected with the continuous pipe cable, for providing single-phase electricity；
The continuous pipe cable and the isometrical connection of the electric igniter, for by the single-phase electrical transmission to the electric igniter；
The binary channel wellhead sealing blowout hookup is arranged on above the baked wheaten cake well head；
The continuous pipe rountrip device is used for will be described by the first path of the binary channel wellhead sealing blowout hookup
Temperature and pressure are monitored and enter the gas injection tube column under continuous pipe, then by the alternate path of the binary channel wellhead sealing blowout hookup successively
The gas injection tube column will be entered under the continuous pipe cable and the electric igniter；
The gas injection tube column is arranged in the production casing that burns below well head, and the gas injection system passes through the baked wheaten cake well
Mouth is connected with the gas injection tube column, forms oil jacket annular space between the inwall of the outer wall and sleeve pipe of the gas injection tube column；
The temperature and pressure Surveillance center monitors continuous pipe with the temperature and pressure and is connected, for gathering simultaneously monitoring temperature, pressure signal.
2. electric ignition system according to claim 1, it is characterised in that cold end, the company are set on the electric igniter
Continuous pipe cable is by the cold end and the isometrical connection of the electric igniter.
3. electric ignition system according to claim 2, it is characterised in that the cold end is filled by magnesium oxide mineral insulation.
4. the electric ignition system according to any one of claims 1 to 3, it is characterised in that the ground power supply system includes
Three become single control system and adjustable transformer, and the three change single controls system is used for for three-phase electricity being converted to the single-phase electricity, institute
Adjustable transformer is stated for the single-phase electricity pressure regulation transformation.
5. the electric ignition system according to any one of claims 1 to 3, it is characterised in that the binary channel wellhead sealing is prevented
Spray apparatus include the multistage dynamic sealer of first set, second set of multi-stage sealed device and the safe preventer of binary channel, wherein,
The multistage dynamic sealer of the first set is used for sealing that the temperature and pressure monitoring is continuous to manage；
Second set of multistage dynamic sealer is used for sealing the continuous pipe cable and the electric igniter；
The safe preventer of the binary channel is provided with first path and the alternate path.
6. the electric ignition system according to any one of claims 1 to 3, it is characterised in that the continuous pipe cable by interior extremely
Outward as interior shaft core line, insulating barrier, outer layer heart yearn, continuous pipe cable protecting tube.
7. the electric ignition system according to any one of claims 1 to 3, it is characterised in that the electric igniter includes：Resistance
Silk, mineral insulation material and electric igniter pillar, the resistance wire are arranged in the electric igniter pillar, and the mineral are exhausted
Edge material is filled in the electric igniter pillar.
8. electric ignition system according to claim 7, it is characterised in that the heatproof of the electric igniter pillar is at least
1050 DEG C, the heatproof of the resistance wire is at least 1150 DEG C.
9. the electric ignition system according to any one of claims 1 to 3, it is characterised in that the temperature and pressure monitor continuous pipe bag
Include：Temperature and pressure monitoring is continuously managed and protected, optical cable, pressure measurement capillary tube and standby capillary tube, the optical cable, the pressure measurement capillary tube, institute
State standby capillary tube and be arranged on temperature and pressure monitoring and continuously manage and protect in pipe.
10. the electric ignition system according to any one of claims 1 to 3, it is characterised in that the gas injection system includes noting nitrogen
System, air compressor, oxygen reduction apparatus and supercharger, during igniting, the air compressor and the supercharger pass through the note
Trachea post provides air for the electric igniter, and during fire extinguishing, the nitrogen-filling system is the electric igniter by the gas injection tube column
Phlogisticated air or nitrogen are provided.
11. electric ignition systems according to claim 9, it is characterised in that the temperature and pressure Surveillance center includes temperature measuring optical end
Machine, pressure transducer and data collecting system, the optical cable that the thermometric optical transmitter and receiver monitors continuous pipe with the temperature and pressure are connected, and are used for
Collection and monitoring temperature data, the pressure measurement capillary tube that the pressure transducer monitors continuous pipe with the temperature and pressure are connected, and use
In monitoring pressure signal change, the data collecting system is connected with the pressure transducer, for gathering and monitoring number pressure
According to.
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| CN201610892224.7A CN106499377B (en) | 2016-10-13 | 2016-10-13 | electric ignition system |
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|---|---|---|---|
| CN201610892224.7A CN106499377B (en) | 2016-10-13 | 2016-10-13 | electric ignition system |
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| CN106499377B CN106499377B (en) | 2019-12-06 |
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