CN106761639B - Combustion in situ electric igniter and monitoring system - Google Patents
Combustion in situ electric igniter and monitoring system Download PDFInfo
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- CN106761639B CN106761639B CN201611215418.XA CN201611215418A CN106761639B CN 106761639 B CN106761639 B CN 106761639B CN 201611215418 A CN201611215418 A CN 201611215418A CN 106761639 B CN106761639 B CN 106761639B
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- gas injection
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 30
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 17
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 16
- 238000005259 measurement Methods 0.000 claims abstract description 44
- 210000002445 nipple Anatomy 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 238000002347 injection Methods 0.000 claims description 51
- 239000007924 injection Substances 0.000 claims description 51
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 239000013307 optical fiber Substances 0.000 claims description 16
- 239000000835 fiber Substances 0.000 claims description 13
- 230000003287 optical effect Effects 0.000 claims description 10
- 239000000523 sample Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000000452 restraining effect Effects 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 40
- 239000003921 oil Substances 0.000 description 36
- 239000004615 ingredient Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- FRWYFWZENXDZMU-UHFFFAOYSA-N 2-iodoquinoline Chemical compound C1=CC=CC2=NC(I)=CC=C21 FRWYFWZENXDZMU-UHFFFAOYSA-N 0.000 description 1
- 229910017083 AlN Inorganic materials 0.000 description 1
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding 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
- 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
- E21B47/00—Survey of boreholes or wells
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
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- 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)
- Geophysics (AREA)
- Measuring Fluid Pressure (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The present invention discloses a kind of combustion in situ electric igniter and monitoring system.The combustion in situ electric igniter includes: the shell that lengthwise extends, and can be bent；The end of the shell is equipped with the electric igniter communicated with outside and exports；Multiple placement pipes in the shell are equipped with heating cable in at least two placement pipes, are equipped with measurement cable at least one described placement pipe；The placement pipe includes multiple pipe nipples connect that join end to end；It is connected between two neighboring pipe nipple using universal joint；It is set to the pressure measuring unit of the casing ends, the pressure of the electric igniter outlet can be measured；The pressure measuring unit connects the measurement cable；It is set to the flow measurement device of the casing ends, the air mass flow of the electric igniter outlet can be measured；The flow measurement device connects the measurement cable；The temperature measuring equipment being set in the placement pipe, can measure electric igniter by the temperature of the upper shell to end.
Description
Technical field
The present invention relates to thickened oil recovery field more particularly to a kind of combustion in situ electric igniter and monitoring systems.
Background technique
Liaohe Oil Field is the maximum viscous crude production base in China, and heavy oil production accounts for about the 58% of total output, most of at present
Block is in the steam injection development later period, and exploitation difficulty increases, and it is a kind of having for row that fireflood technology, which is taken over development scheme as it,
The means of effect, the successful key of fireflood technological development is oil layer ignition.Currently, common sparking mode is broadly divided into note both at home and abroad
Chemical agent igniting and electric ignition two major classes.Wherein electric ignition technology is mainly Jie for utilizing downhole electric heater to inject ground
Matter as air or combustion adjuvant heat, and is allowed to that oxidation reaction occurs with the crude oil in oil reservoir, reaches self-ignition point and burn, because
This, igniter is the key that fireflood technology success, and the igniter of the application of fireflood at present is mainly cluster and retrievable electricity
Igniter.Cluster igniter is using oil pipe column by igniter tripping in purpose of horizon, and power cable is mounted on oil jacket ring
It is aerial and be bonded on oil pipe and connect with ground control cabinet, since gas injection tube column does not rise out within the entire production cycle, lead to electric point
Firearm and power cable cannot reuse, and cause its individual well igniting increased costs.
The technical issues of in order to solve electric igniter recycling, Chinese patent CN102352745A, publication date 2012
Years 15 days 2 months, " a kind of retrievable igniter of combustion in situ and application method " is disclosed, although which may be implemented to light a fire
The recycling of device, but since the igniter and power cable be not isometrical, especially the diameter of igniter is much larger than power cable
Diameter cause in the production process of continuous gas injection, igniter is in well head to guarantee the sealing at power cable and well head
Rountrip difficulty it is larger, operating efficiency is lower, and the device is also without complete temperature monitoring system, the degree of automation
It is low.
Chinese patent 201310078305.X discloses " a kind of windable electric ignition and monitoring system for in-situ combustion ",
The recycling of igniter may be implemented in the device, since igniter is isometrical with power cable, ensure that power cable and well head
The sealing at place, in the production process of continuous gas injection, igniter is easy to rountrip in well head, which is furnished with temperature monitoring
System, the degree of automation are higher.Lighter cable is using existing MI cable manufacturing process, through drawing repeatedly and heat treatment
Afterwards, the MI heating cable of 30~100m, 30~80kW of power or so are made as needed.By drawing repeatedly and heat treatment manufacture work
The influence of skill, limits the layout and use of monitoring system in cable, and the monitoring system in existing igniter can only monitor a little
Firearm cold junction temperature, it is unable to monitor to igniter hot end (i.e. air outlet slit) temperature, meanwhile, this part can recycle.
In addition, currently in order to monitoring point firearm hot end (air outlet slit) temperature, can only be between gas injection tube column and casing under
Enter to be bundled in the cable for measuring temperature on gas injection tube column, and then monitoring point firearm hot-side temperature, since this part is affixed to air injection pipe
On column, it cannot recycle.The structure of existing igniter determines that the monitoring system in igniter is unable to monitor igniter hot end
Various thermal parameters.
Summary of the invention
In view of the deficiencies in the prior art, the present invention is it is necessary to provide a kind of combustion in situ electric igniter and monitors system, with
One of the technical issues of at least solving above-mentioned disclosure.
In order to achieve the above objectives, the invention adopts the following technical scheme:
A kind of combustion in situ electric igniter, comprising:
The shell that lengthwise extends, can be bent；The end of the shell is equipped with the electric igniter communicated with outside and exports；
Multiple placement pipes in the shell are equipped with heating cable, at least one in at least two placement pipes
Measurement cable is equipped in a placement pipe；The placement pipe includes multiple pipe nipples connect that join end to end；Two neighboring pipe nipple
Between using universal joint connect；
It is set to the pressure measuring unit of the casing ends, the pressure of the electric igniter outlet can be measured；The survey
Pressure device connects the measurement cable；
It is set to the flow measurement device of the casing ends, the air stream of the electric igniter outlet can be measured
Amount；The flow measurement device connects the measurement cable；
The temperature measuring equipment being set in the placement pipe, can measure electric igniter by the upper shell to end
Temperature.
As a preferred embodiment, the flow measurement device includes incident optical, mirror based fiber optica, code-disc, light
Fine probe, turbine, shaft, bearing；The shaft is fixed in the bearing can rotate；The code-disc and the turbine are solid
Due in the shaft；The turbine drives the code-disc to rotate when gas push is rotated by the shaft；The code-disc
On be provided with multiple reflection bars；Incident light can be irradiated on the reflection bar by the incident optical, the mirror based fiber optica connection
The fibre-optical probe is to receive the reflected light of the reflection bar.
As a preferred embodiment, the quantity of the reflection bar is two and is uniformly distributed on the code-disc.
As a preferred embodiment, the incident optical and the mirror based fiber optica are set in the measurement cable.
As a preferred embodiment, the temperature measuring equipment includes the temperature-measuring optical fiber being set in the cable.
As a preferred embodiment, the pressure measuring unit is fibre optic compression sensor.
As a preferred embodiment, the pipe nipple is equipped with its perforative through-hole along the outer cover length direction；
One end outer wall of the pipe nipple is equipped with the first spherical surface, and the pipe nipple other end inner wall is equipped with and first spherical surface matched second
Spherical surface.
As a preferred embodiment, the shell is coiled tubing.
As a preferred embodiment, being additionally provided with heat filling in the shell, the heat filling is located at institute
It is outer to state placement pipe.
As a preferred embodiment, being additionally provided with the beam for bundling the multiple placement pipe in the shell
Ligature.
As a preferred embodiment, the end of the shell is additionally provided with righting part；The righting part energy will be described
Electric igniter righting is in the middle position of oil pipe.
A kind of combustion in situ electric ignition monitoring system, comprising:
Gas injection well；
Electric igniter described in any embodiment as above, is located in the gas injection well；
The coiled tubing being connect with the electric igniter；
Wrap-up outside the gas injection well is connected with the coiled tubing；The wrap-up can be received
Put the coiled tubing；
Gas injection device outside the gas injection well injects air into the gas injection well by air injection pipe；
Control device outside the gas injection well is connected with the electric igniter.
As a preferred embodiment, the gas injection well includes oil pipe, casing and is located at the oil pipe and described
The production tree of cannula tip；The oil pipe is sheathed in described sleeve pipe, and packer is equipped between the oil pipe and described sleeve pipe；Institute
The top for stating production tree is equipped with guider, and the coiled tubing connects the wrap-up after the guider deflecting.
As a preferred embodiment, the guider is fixed pulley.
As a preferred embodiment, the gas injection device includes air compressor；The air compressor passes through
The air injection pipe is connected to the oil pipe；The air injection pipe is equipped with valve switch, pressure sensor and gas flowmeter；
The gas injection device, the pressure sensor and the gas flowmeter connect the control device.
As a preferred embodiment, the pressure sensor and the gas flowmeter are set to the valve switch
Downstream.
In conclusion electric ignition device provided by the invention, is managed by the way that flexible shell is arranged and places, and will heating
Cable and measurement cable are housed in place in pipe respectively, then organic with pressure measuring unit, flow measurement device and temperature measuring equipment
In conjunction with, thus, while realizing that igniter is recyclable, igniting and monitoring integration are realized, also, mention using the present invention
The electric ignition device of confession does not have to binding cable, the monitoring of igniter outlet temperature can be realized without cable-passing packer, thus
Operation complexity is reduced, construction cost is reduced, improves construction efficiency.
Referring to following description and accompanying drawings, only certain exemplary embodiments of this invention is disclosed in detail, specifies original of the invention
Reason can be in a manner of adopted.It should be understood that embodiments of the present invention are not so limited in range.In appended power
In the range of the spirit and terms that benefit requires, embodiments of the present invention include many changes, modifications and are equal.
The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more
It uses in a other embodiment, is combined with the feature in other embodiment, or the feature in substitution other embodiment.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when using herein, but simultaneously
It is not excluded for the presence or additional of one or more other features, one integral piece, step or component.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those skilled in the art without any creative labor, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the combustion in situ electric ignition monitoring system schematic that one embodiment of the present invention provides；
Fig. 2 is the a-quadrant enlarged diagram in Fig. 1；
Fig. 3 is electric igniter cross-sectional view in Fig. 2；
Fig. 4 is the placement pipe diagrammatic cross-section of electric igniter in Fig. 2；
Fig. 5 is the flow measurement device structural schematic diagram of electric igniter in Fig. 2.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to guarantor of the present invention
The range of shield.
It should be noted that it can directly on the other element when element is referred to as " being set to " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more
Any and all combinations of relevant listed item.
Fig. 1 to Fig. 5 is please referred to, is shown for a kind of 14 structure of combustion in situ electric igniter that one embodiment of the present invention provides
It is intended to.In the present embodiment, which includes: the shell 4 that lengthwise extends, and can be bent；The end of the shell 4
End is equipped with the electric igniter 14 communicated with outside and exports；Multiple placement pipes 1 in the shell 4, put described at least two
It sets and is equipped with heating cable 6 in pipe 1, measurement cable 5 is equipped at least one described placement pipe 1；The placement pipe 1 includes more
A pipe nipple 100 connect that joins end to end；It is connected between two neighboring pipe nipple 100 using universal joint；It is set to 4 end of shell
Pressure measuring unit 15 can measure the pressure that the electric igniter 14 exports；The pressure measuring unit 15 connects the measurement cable
5；It is set to the flow measurement device 16 of 4 end of shell, the air mass flow that the electric igniter 14 exports can be measured；
The flow measurement device 16 connects the measurement cable 5；The temperature measuring equipment being set in the placement pipe 1, can measure
Electric igniter 14 by 4 upper end of shell to end temperature.
In use, the electric igniter 14 of present embodiment, which is connected coiled tubing 43, passes through 28 tripping in oil pipe 33 of wrap-up
In, pass through gas injection device 18 outside well and inject air into oil pipe 33, air is through oil pipe 33 (perforation or oil pipe 33 on oil pipe 33
Distal opening) enter in oil reservoir 36.By powering to the heating cable 6 of electric igniter 14, igniting heating is carried out.Meanwhile passing through
Pressure measuring unit 15, flow measurement device 16 and temperature measuring equipment are respectively to the pressure of ignition location, flow and temperature parameter
Measurement, to carry out dynamic real-time measurement.Also, after lighting a fire successfully, carried out by 28 folding and unfolding electric igniter 14 of wrap-up
Measure 36 gas entry profile of oil reservoir.After igniting, it can directly be lifted by wrap-up 28 outside well and withdraw electric igniter 14, together
When, since the shell 4 and placement pipe 1 of electric igniter 14 are flexible, wound so the electric igniter 14 can be wound together
On device 28, so that whole realize can be recycled.
In conclusion the electric igniter 14 that present embodiment provides, by the way that flexible shell 4 is arranged and places pipe 1, and
Will heating cable 6 and measurement cable 5 respectively be housed in place pipe 1 in, then with pressure measuring unit 15, flow measurement device 16, with
And temperature measuring equipment organically combines, thus, while realizing that igniter is recyclable, igniting and monitoring integration are realized, and
And the electric igniter 14 provided using present embodiment is not had to binding cable, igniting can be realized without cable-passing packer 34
The monitoring of device outlet temperature reduces construction cost, improves construction efficiency to reduce operation complexity.
In the present embodiment, the length direction of shell 4 is consistent with the length direction of oil pipe 33 or casing 30, the shell 4
Usually round tube shape, the present invention are also not precluded as shapes such as prismatic or irregular tube bodies.Specifically, the shell 4 can
Think coiled tubing 43, or the steel pipe that steel band is rolled into.The shell 4 can be bent, so as to by wrap-up
28 windings, to recycle electric igniter 14.
To solve the above problems, multiple placement pipes 1 are equipped in present embodiment in shell 4.Wherein place pipe 1 equally
It can carry out bending certain angle.Single place places single line cable (heating cable 6 or measurement cable 5) in pipe 1.Wherein, each
Pipe 1 is placed to connect and compose by multiple (at least two) 100 head and the tail of pipe nipple.Two neighboring pipe nipple 100 is connected by universal joint,
So that the flexible certain angle of two neighboring pipe nipple 100 can make the placement pipe 1 by the common flecition of multiple pipe nipples 100
It is wound on wrap-up 28 together with shell 4, realizes the recycling of electric igniter 14.
As shown in figure 4, multiple 100 head and the tail of pipe nipple are serially connected, it can be connected, can also be led to by candan universal joint
Rzeppa joint is crossed to be connected.Meanwhile each pipe nipple 100 is equipped with its perforative through-hole along 4 length direction of shell
101.The pipeline worn for cable (heating cable 6 or measuring cable 5) for placing pipe 1 is formed after multiple pipe nipples 100 mutually concatenation.
As shown in Fig. 2, one end outer wall of the pipe nipple 100 is equipped with the first spherical surface 102,100 other end inner wall of pipe nipple
Equipped with matched second spherical surface 103 of first spherical surface 102.The material of pipe nipple 100 (placing pipe 1) is insulating materials, thus
Make the electrical apparatus insulation in electric igniter 14, prevents from causing short circuit and damaging oil production equipment.
In connection, the first spherical surface 102 of current pipe nipple 100 protrudes into the end and second of previous (or latter) pipe nipple 100
Spherical surface 103 matches, and (front-rear direction can phase with latter (or previous) pipe nipple 100 for the second spherical surface 103 of current pipe nipple 100
Correspond to up and down direction) the first spherical surface 102 match, thus head and the tail concatenation formed place pipe 1.
As shown in Figure 3, it is contemplated that radially it is each place pipe 1 be mutually be independent individual, it is loose be close together, tie
Structure is unstable and is unfavorable for wearing in shell 4, based on this consideration, is additionally provided in the shell 4 and ties the multiple placement pipe 1
The restraining 3 being held together.The stable structure that can make inside shell 4 is arranged such, meanwhile, pipe 1 will be placed by, which being also conducive to, penetrates
In (pressure-bearing) shell 4 of electric igniter 14.
In the present embodiment, it places and is equipped with heating cable 6 in pipe 1.Wherein, heating cable 6 can be twin-core or three
Core cable can have two or three, to occupy two (a) placement pipes 1 or three placement pipes 1 accordingly.In reality
In, it is two-phase or three-phase that the quantity for heating cable 6, which can depend on heating electric,.
Heat filling 2 is also provided in the shell 4, the heat filling 2 is located at outside the placement pipe 1.Wherein,
Heat filling 2 is spaced apart pipe 1 is placed, meanwhile, it will also place pipe 1 and be spaced apart with shell 4, avoid phase attrition during bending
Damage, influences life tools.Specifically, heat filling 2 can be beryllium oxide, aluminium nitride, boron nitride, magnesia etc..
As shown in Fig. 2, the end of the shell 4 is additionally provided with righting part；The righting part can help the electric igniter 14
Just in the middle position of oil pipe 33.Wherein, righting part radially extending in the shell 4 can be ring configuration, can also be with
Block or plate body.When righting part is wiper block or righting board, quantity is circumferential uniformly arrangement multiple and along shell 4.
Helmet has can be set in the end of shell 4, wherein the outlet of electric igniter 14 can be provided on shell 4.Wherein,
Shell 4 can be structure as a whole with helmet, and helmet also can connect forms the shell 4 on a tube body.In present embodiment
In, pressure measuring unit 15, flow measurement device 16 can be located at helmet in, thus measure electric igniter 14 outlet pressure and
Air mass flow size.
As shown in figure 5, the flow measurement device 16 may include incident optical 8, mirror based fiber optica 9, code-disc 7, optical fiber spy
First 10, turbine 11, shaft 12, bearing 13；The shaft 12 is fixed in the bearing 13 can rotate；The code-disc 7 and
The turbine 11 is fixed in the shaft 12.The turbine 11 is driven when gas push is rotated by the shaft 12 described
Code-disc 7 rotates.Multiple reflection bars are provided on the code-disc 7.Incident light can be irradiated to the reflection bar by the incident optical 8
On, the mirror based fiber optica 9 connects the fibre-optical probe 10 to receive the reflected light of the reflection bar.
Specifically, the quantity of the reflection bar is preferably two and is uniformly distributed on the code-disc 7.The present invention not with
This is limitation.Wherein, in measurement process, incident light is irradiated on reflection bar, and the reflected light of generation is returned by fibre-optical probe 10
Mirror based fiber optica 9 is returned to, the variation by analyzing intensity of reflected light judges the rotational case of code-disc 7, so that it is determined that turbine 11 turns
Speed, revolving speed-flow nominal data according to turbine 11 can calculate gas flow.
In the present embodiment, the incident optical 8 and the mirror based fiber optica 9 are set in the measurement cable 5.Wherein,
The temperature measuring equipment includes the temperature-measuring optical fiber 20 being set in the cable.Specifically, temperature-measuring optical fiber 20 can be the more of multiple spot
Mode fiber or the single mode optical fiber of single-point etc., so that the temperature range measurement of entire 14 length of electric igniter is realized, convenient for obtaining electricity
Igniter 14 is from cold section to the temperature profile in hot end.
In the present embodiment, temperature-measuring optical fiber 20 can (for example the connector can be by light there are connector in electric igniter 14
Signal is converted to electric signal or other signals), the control device 29 outside well is connected by connector, control device 29 is surveyed by receiving
The metrical information of warm optical fiber 20, calculates corresponding temperature data.The length of temperature-measuring optical fiber 20 and shell 4 (electric igniter 14)
Length is roughly equal, and the end of electric igniter 14 is extended to from the upper end of electric igniter 14, meanwhile, above-mentioned helmet can be extend into
Space in, to measure true 14 hot-side temperature of electric igniter.
For adherence pressure measurement accuracy, and realize the dynamic real-time measurement of pressure, the pressure measuring unit 15 is preferably optical fiber
Pressure sensor 22.Specifically, pressure measuring unit 15 can survey pressure by fiber grating or utilize armour outside armour outside optical cable again jacket layer
Bubbling method surveys pressure etc..Wherein, temperature-measuring optical fiber 20, the flow measurement device of the optical fiber of fibre optic compression sensor 22 and temperature measuring equipment
16 optical fiber can be processed into a cable, i.e. measurement cable 5.
Another embodiment of the present invention also provides a kind of combustion in situ electric ignition monitoring system, comprising: gas injection well；As above
Electric igniter 14 described in any embodiment is located in the gas injection well；The continuous oil being connect with the electric igniter 14
Pipe 43；Wrap-up 28 outside the gas injection well is connected with the coiled tubing 43；The wrap-up 28 can
Coiled tubing 43 described in folding and unfolding；Gas injection device 18 outside the gas injection well, through air injection pipe 19 into the gas injection well
Inject air；Control device 29 outside the gas injection well is connected with the electric igniter 14.
In the present embodiment, the gas injection well include oil pipe 33, casing 30 and be located at the oil pipe 33 and the set
The production tree 24 at 30 top of pipe.The oil pipe 33 is sheathed in described sleeve pipe 30, is set between the oil pipe 33 and described sleeve pipe 30
There is packer 34；The top of the production tree 24 is equipped with guider 27, and the coiled tubing 43 is after 27 deflecting of guider
Connect the wrap-up 28.Specifically, the guider 27 is fixed pulley.Wherein, note is also provided on production tree 24
Enter device 26 (being two rows of runners in Fig. 1, facilitate the tripping in of coiled tubing 43 by the rotation of runner) and preventer 25.
The gas injection device 18 may include air compressor 18.The air compressor 18 by the air injection pipe 19 with
The oil pipe 33 is connected to；The air injection pipe 19 is equipped with valve switch 44, pressure sensor 22 and gas flowmeter 21；Institute
It states pressure sensor 22 and the gas flowmeter 21 connects the control device 29.
As shown in Figure 1, the pressure sensor 22 and the gas flowmeter 21 are set to the downstream of the valve switch 44.
For convenient for automatically controlling, valve switch 44 can be electrically operated valve 44.Wherein, gas injection device 18 and electrically operated valve 44 can lead to
It crosses signal wire 23 to be connected with control device 29, control device 29 controls gas injection according to the information that underground electric igniter 14 is fed back
Device 18 and electrically operated valve 44, realize the automatic control of combustion in situ.Specifically, control device 29 can control for signal acquisition
Cabinet 29, and be set to around well head, consequently facilitating operator operates.
In the present embodiment, electric igniter 14 acquire downhole temperature, pressure, data on flows, and with the control on ground
Device 29 processed is connected.The gas flowmeter 21 and pressure sensor 22 of ground acquisition, are equally connected with control device 29.Technology
Personnel or computer can adjust the air capacity of injection according to underground, the data point reuse electrically operated valve 44 of ground acquisition and compressor.
Fig. 1 shows the monitoring system schematic in present embodiment.The monitoring system utilizes air compressor 18, note
Air is passed through oil pipe 33 through covering by production tree 24 by tracheae 19, electrically operated valve 44, gas flowmeter 21, pressure sensor 22
Annular space between pipe 30 and oil pipe 33 injects air into oil reservoir 36, provides necessary oxygen for the burning of oil reservoir 36.
The system stores built-in power using wrap-up 28 and monitoring cable 42, lower end are connected with the company of electric igniter 14
Continuous oil pipe 43.Coiled tubing 43 on wrap-up 28 utilizes injection device 26 and guider 27, by preventer 25, along oil pipe
In 33 in lower going-into-well, also it can be recycled on wrap-up 28.
Power and monitoring cable 42 play 41 by cable connection and are attached with (continuous pipe type) electric igniter 14.Specifically
, power and monitoring cable 42 connect the heating cable 6 of electric igniter 14 and measure cable 5.The end of electric igniter 14 has
Centralizer 17 guarantees that the flow measurement device 16 of 14 bottom end of electric igniter is placed in the middle.
Heating cable 6, measurement cable 5 in electric igniter 14.Air in oil pipe 33 can be heated to by heating cable 6
The firing temperature needed.Temperature-measuring optical fiber 20 in measurement cable 5 can measure temperature profile and note in entire electric igniter 14
Enter the outlet temperature of air, meanwhile, measure the outlet pressure and flow of electric igniter 14.The power and monitoring signals of underground are unified
It is provided and is obtained by the control device 29 on ground, according to the monitoring data of underground, pass through the signal wire connecting with gas injection device 18
23, the injection rate of ground air is adjusted, ignition control purpose is reached.
Herein cited any digital value all include between lower limit value to upper limit value with the lower value of an incremented and
The all values of upper value, there are the intervals of at least two units between any lower value and any much higher value.For example, such as
Fruit elaborates that the quantity an of component or the value of process variable (such as temperature, pressure, time etc.) are from 1 to 90, preferably from 20
To 80, more preferably from 30 to 70, then purpose is arrived in order to illustrate also clearly listing such as 15 to 85,22 in the specification
68,43 to 51,30 to 32 is equivalent.For the value less than 1, suitably think that a unit is 0.0001,0.001,0.01,0.1.
These are only intended to the example clearly expressed, it is believed that all possibility for the numerical value enumerated between minimum and peak
Combination is all expressly set forth in the specification in a similar manner.
Unless otherwise indicated, all ranges all include all numbers between endpoint and endpoint.It is used together with range
" about " or " approximation " be suitable for two endpoints of the range.Thus, " about 20 to 30 " are intended to cover that " about 20 to about
30 ", including at least the endpoint indicated.
All articles and reference disclosed, including patent application and publication, for various purposes by quoting knot
Together in this.Describing combined term " substantially by ... constitute " should include identified element, ingredient, component or step and reality
Other elements, ingredient, component or the step of the basic novel feature of the combination are not influenced in matter.Using term "comprising" or
" comprising " describes the combination of element here, ingredient, component or step it is also contemplated that substantially by these elements, ingredient, component
Or the embodiment that step is constituted.Here by using term " can with ", it is intended to illustrate that " can with " includes described any
Attribute is all optional.
Multiple element, ingredient, component or step can be provided by single integrated component, ingredient, component or step.Optionally
Ground, single integrated component, ingredient, component or step can be divided into multiple element, ingredient, component or the step of separation.It is used to
The open "a" or "an" for describing element, ingredient, component or step is not said to exclude other elements, ingredient, component
Or step.
It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch
It states, many embodiments and many applications except provided example all will be aobvious and easy for a person skilled in the art
See.Therefore, the range of this introduction should not be determined referring to foregoing description, but should referring to appended claims and this
The full scope of the equivalent that a little claims are possessed determines.For comprehensive purpose, all articles and with reference to including special
The disclosure of benefit application and bulletin is all by reference to being incorporated herein.Theme disclosed herein is omitted in preceding claims
Any aspect is not intended to abandon the body matter, also should not be considered as inventor the theme is not thought of as it is disclosed
A part of subject matter.
Claims (16)
1. a kind of combustion in situ electric igniter characterized by comprising
The shell that lengthwise extends, can be bent；The end of the shell is equipped with the electric igniter communicated with outside and exports；
Multiple placement pipes in the shell are equipped with heating cable in at least two placement pipes, at least one institute
It states to place in pipe and is equipped with measurement cable；The placement pipe includes multiple pipe nipples connect that join end to end；Between two neighboring pipe nipple
It is connected using universal joint；
It is set to the pressure measuring unit of the casing ends, the pressure of the electric igniter outlet can be measured；The survey press fitting
Set the connection measurement cable；
It is set to the flow measurement device of the casing ends, the air mass flow of the electric igniter outlet can be measured；Institute
It states flow measurement device and connects the measurement cable；
The temperature measuring equipment being set in the placement pipe, can measure electric igniter by the temperature of the upper shell to end
Degree.
2. electric igniter as described in claim 1, it is characterised in that: the flow measurement device includes incident optical, reflection
Optical fiber, code-disc, fibre-optical probe, turbine, shaft, bearing；The shaft is fixed in the bearing can rotate；The code-disc
And the turbine is fixed in the shaft；The turbine drives the code-disc to turn when gas push is rotated by the shaft
It is dynamic；Multiple reflection bars are provided on the code-disc；Incident light can be irradiated on the reflection bar by the incident optical, described anti-
It penetrates optical fiber and connects the fibre-optical probe to receive the reflected light of the reflection bar.
3. electric igniter as claimed in claim 2, it is characterised in that: the quantity of the reflection bar is two and in the code-disc
On be uniformly distributed.
4. electric igniter as claimed in claim 2, it is characterised in that: the incident optical and the mirror based fiber optica are set on described
It measures in cable.
5. electric igniter as described in claim 1, it is characterised in that: the temperature measuring equipment includes being set to the measurement cable
Interior temperature-measuring optical fiber.
6. electric igniter as described in claim 1, it is characterised in that: the pressure measuring unit is fibre optic compression sensor.
7. electric igniter as described in claim 1, it is characterised in that: the pipe nipple be equipped with along the outer cover length direction by its
Perforative through-hole；One end outer wall of the pipe nipple is equipped with the first spherical surface, and the pipe nipple other end inner wall is equipped with and first ball
Matched second spherical surface in face.
8. electric igniter as described in claim 1, it is characterised in that: the shell is coiled tubing.
9. electric igniter as described in claim 1, it is characterised in that: heat filling is additionally provided in the shell, it is described to lead
It is outer that hot filler is located at placement pipe.
10. electric igniter as described in claim 1, it is characterised in that: be additionally provided in the shell and manage the multiple placement
The restraining bundled.
11. electric igniter as described in claim 1, it is characterised in that: the end of the shell is additionally provided with righting part；It is described to help
Positive part can be by the electric igniter righting in the middle position of oil pipe.
12. a kind of combustion in situ electric ignition monitors system characterized by comprising
Gas injection well；
Electric igniter as described in claim 1-11 is any is located in the gas injection well；
The coiled tubing being connect with the electric igniter；
Wrap-up outside the gas injection well is connected with the coiled tubing；The wrap-up being capable of folding and unfolding institute
State coiled tubing；
Gas injection device outside the gas injection well injects air into the gas injection well by air injection pipe；
Control device outside the gas injection well is connected with the electric igniter.
13. monitoring system as claimed in claim 12, it is characterised in that: the gas injection well includes oil pipe, casing and is located at
Production tree at the top of the oil pipe and described sleeve pipe；The oil pipe is sheathed in described sleeve pipe, the oil pipe and described sleeve pipe it
Between be equipped with packer；The top of the production tree is equipped with guider, and the coiled tubing connects institute after the guider deflecting
State wrap-up.
14. monitoring system as claimed in claim 13, it is characterised in that: the guider is fixed pulley.
15. monitoring system as claimed in claim 13, it is characterised in that: the gas injection device includes air compressor；It is described
Air compressor is connected to by the air injection pipe with the oil pipe；The air injection pipe be equipped with valve switch, pressure sensor, with
And gas flowmeter；The gas injection device, the pressure sensor and the gas flowmeter connect the control device.
16. monitoring system as claimed in claim 15, it is characterised in that: the pressure sensor and the gas flowmeter are set
In the downstream of the valve switch.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611215418.XA CN106761639B (en) | 2016-12-26 | 2016-12-26 | Combustion in situ electric igniter and monitoring system |
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| CN201611215418.XA CN106761639B (en) | 2016-12-26 | 2016-12-26 | Combustion in situ electric igniter and monitoring system |
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| CN106761639B true CN106761639B (en) | 2019-04-12 |
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| CN107575194A (en) * | 2017-10-23 | 2018-01-12 | 大庆东油睿佳石油科技有限公司 | A kind of method of row's formula horizontal well hot-water flooding exploitation of gas hydrate |
| CN107939379A (en) * | 2017-11-03 | 2018-04-20 | 中国石油天然气股份有限公司 | A kind of thick oil heat production steam injection well inhales vapour water swelling elastomer detection method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205445594U (en) * | 2015-12-26 | 2016-08-10 | 盘锦辽油晨宇集团有限公司 | Baked wheaten cake optic fibre warm -pressing monitoring system that takes in and send out |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3974690A (en) * | 1975-10-28 | 1976-08-17 | Stewart & Stevenson Oiltools, Inc. | Method of and apparatus for measuring annulus pressure in a well |
| KR101400886B1 (en) * | 2012-08-20 | 2014-05-29 | (주) 소암컨설턴트 | 3d distributed underground temperature measuring system |
| CN203081409U (en) * | 2013-02-20 | 2013-07-24 | 张军 | Auto-control oil well casing gas recovery device |
| CN103147733B (en) * | 2013-03-12 | 2015-08-05 | 中国石油天然气股份有限公司 | The electric ignition of combustion in situ rolling-up type and monitoring system |
| CN104265256A (en) * | 2014-07-31 | 2015-01-07 | 中国石油天然气股份有限公司 | In-situ combustion electric ignition device |
| CN104196509A (en) * | 2014-08-29 | 2014-12-10 | 中国石油天然气股份有限公司 | Fireflooding moving type high-temperature electric ignition process pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205445594U (en) * | 2015-12-26 | 2016-08-10 | 盘锦辽油晨宇集团有限公司 | Baked wheaten cake optic fibre warm -pressing monitoring system that takes in and send out |
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