CN104265256A - In-situ combustion electric ignition device - Google Patents
In-situ combustion electric ignition device Download PDFInfo
- Publication number
- CN104265256A CN104265256A CN201410373364.4A CN201410373364A CN104265256A CN 104265256 A CN104265256 A CN 104265256A CN 201410373364 A CN201410373364 A CN 201410373364A CN 104265256 A CN104265256 A CN 104265256A
- Authority
- CN
- China
- Prior art keywords
- combustion
- ignition device
- electric ignition
- protection tube
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention discloses an in-situ combustion electric ignition device, which comprises a protection pipe, a temperature measuring device, a heating device and a pressure measuring pipe, wherein the protection pipe extends in the lengthwise direction; the inside of the protection pipe is filled with high-temperature insulation filling materials; the temperature measuring device is arranged in the protection pipe; the heating device is arranged in the protection pipe; the pressure measuring pipe is arranged in the protection pipe; an end opening of the lower end of the pressure measuring pipe is used for being communicated with a borehole environment in an ignition position; an end opening of the upper end of the pressure measuring pipe is a pressure measuring outlet; and the heating device is separated from the temperature measuring device, the pressure measuring pipe and the protection pipe by the high-temperature insulation filling materials. When the in-situ combustion electric ignition device disclosed by the invention is used, the pressure intensity in the ignition position can be conveniently measured.
Description
Technical field
The application relates to thickened oil recovery apparatus field, particularly relates to a kind of combustion in situ electric ignition device.
Background technology
Liaohe Oil Field is the maximum viscous crude production base of China, and oil pumping yield accounts for 60% of total output, and current most of block is in the steam injection development later stage, and exploitation difficulty increases, and fireflood technology is made a kind of effective means as block later development mode.The successful key of fireflood technological development is oil layer ignition.
At present, conventional both at home and abroad sparking mode is mainly divided into the igniting of note chemical agent and the large class of electric ignition two.Wherein, the medium that electric ignition technology mainly utilizes shaft bottom electric igniter to be injected on ground, as air or combustion adjuvant heating, and makes it and the crude oil generation redox reaction in oil reservoir, reaches crude oil burning-point and burn.Therefore, to be that can fireflood technology light a fire successfully crucial for electric igniter.Chinese patent 201320112187.5 describes the electric ignition of a kind of combustion in situ rolling-up type and monitoring system, electric igniter disclosed by this patent is retrievable electric igniter, it is by being arranged on the inside of the coiled tubing of the outer oil pipe rolling wheel disc of connecting well by electric igniter and electric igniter temperature measuring equipment, the problem that when solving electric igniter well head rountrip, difficulty is larger, and achieve the monitoring to electric igniter outlet air temperature.
Need during combustion in situ in oil reservoir, to inject air by gas injection tube column, oil reservoir gettering ability directly can affect the size of ignition location pressure, know oil reservoir gettering ability and can instruct the speed controlling to inject air, prevent because oil reservoir gettering ability is too low, injection air speed is too fast, forms immense pressure and cause device damage or gas injection device damage in well at ignition location.But above-mentioned electric igniter can not measure the pressure size of igniting position, and then cannot judge the inspiratory effects of oil reservoir.
Summary of the invention
In view of the deficiencies in the prior art, the application provides a kind of combustion in situ electric ignition device being convenient to the pressure size measuring igniting position.
This combustion in situ electric ignition device, comprising:
The protection tube that lengthwise extends, its inside is filled with high-temperature insulation filler;
Be arranged on the temperature measuring equipment in described protection tube;
Be arranged on the heater in described protection tube;
Be arranged on the piezometer tube in described protection tube, its lower end port is used for communicating with the well environment at ignition location place, and its upper end port is pressure measurement outlet;
Separated by described high-temperature insulation filler between described heater and described temperature measuring equipment, described piezometer tube, described protection tube.
Preferably, described piezometer tube upper end is connected with pressure sensor.
Preferably, described high-temperature insulation filler is stretched out in described piezometer tube lower end.
Preferably, port, described piezometer tube lower end is provided with pressure buffer.
Preferably, the described heater wire that comprises heating wire, be connected with described heating wire.
Preferably, described temperature measuring equipment comprise thermocouple wire, the thermocouple of at least one be arranged on along the direction that described protection tube lengthwise extends on described thermocouple wire.
Preferably, in described protection tube, be provided with pillar, in described pillar, be provided with described temperature measuring equipment; Described pillar lower end is stretched out described high-temperature insulation filler and is connected with helmet.
Preferably, described protection tube lower end is connected with protection pipe cap, and the wall of described protection pipe cap offers open-work.
Preferably, inside, described protection tube lower end is provided with fixed head, and described protection tube upper end is provided with fluid sealant; Described high-temperature insulation filler is between described fixed head and described fluid sealant.
Preferably, described high-temperature insulation filler is the mixture of one or more in magnesia, aluminium nitride, boron nitride.
The combustion in situ electric ignition device that above-mentioned the application provides is by being provided with the piezometer tube of the well environment passing into ignition location place to measure the pressure size of igniting position, the pressure at ignition location place is imported into its pressure measurement by its lower end port and exports by described piezometer tube, the pressure measuring described pressure measurement outlet can measure the size of ignition location place pressure, and then controls by the size of measured pressure the speed size injecting air.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those skilled in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the combustion in situ electric ignition device that a kind of embodiment of the application provides;
Fig. 2 is the combustion in situ electric ignition device A-A place generalized section that a kind of embodiment of the application provides.
Detailed description of the invention
Technical scheme in the application is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all should belong to the scope of protection of the invention.
Please refer to Fig. 1, the combustion in situ electric ignition device that a kind of embodiment of the application provides, comprising: the protection tube 1 that lengthwise extends, its inside is filled with high-temperature insulation filler 2; Be arranged on the temperature measuring equipment in described protection tube 1; Be arranged on the heater in described protection tube 1; Be arranged on the piezometer tube 12 in described protection tube 1, its lower end port one 3 is for communicating with the well environment at ignition location place, and its upper end port is pressure measurement outlet 16; Separated by described high-temperature insulation filler 2 between described heater and described temperature measuring equipment, described piezometer tube, described protection tube 1.
The combustion in situ electric ignition device that above-mentioned present embodiment provides is by being provided with the piezometer tube 12 of the well environment passing into ignition location place to measure the pressure size of igniting position, the pressure at ignition location place imports into its pressure measurement outlet 16 by its lower end port one 3 by described piezometer tube 12, the pressure measuring described pressure measurement outlet 16 can measure the size of ignition location place pressure, and then controls by the size of measured pressure the speed size injecting air.
Described protection tube 1 is that lengthwise extends, its lower end can G.I.H until ignition location, the outer one end of well can be connected with wrap-up, is reached the position of combustion in situ electric ignition device in down-hole of mobile present embodiment by described wrap-up rolling protection tube 1.Described protection tube 1 can adopt flexible material to make.Be provided with described high-temperature insulation filler 2, described temperature measuring equipment, described heater, described piezometer tube 12 in described protection tube 1, it accommodates protective effect to described temperature measuring equipment, described heater, described piezometer tube 12.Further, inside, described protection tube 1 lower end can be provided with fixed head 6, and its upper end is provided with fluid sealant 7, and described high-temperature insulation filler 2 is filled between described fixed head 6 and described fluid sealant 7, and then prevents high-temperature insulation filler 2 from overflowing in described protection tube 1.Accordingly, described fixed head 6 be provided with through hole to make described temperature measuring equipment, piezometer tube 12 stretches out; Described fluid sealant is also provided with through hole and stretches out in the outer one end of well to make described temperature measuring equipment, piezometer tube 12, heater.Described protection tube 1 lower end also can be connected with protection pipe cap 15, to shield to the described temperature measuring equipment in protection tube 1, described piezometer tube 12 when mobile present embodiment.Described connected mode can adopt to link and connect or weld.The wall of described protection pipe cap 15 is provided with open-work 14, to communicate with the well environment at ignition location place, and then make temperature measured by described temperature measuring equipment and described piezometer tube 12 and pressure more accurate.
Described high-temperature insulation filler 2 for by described heater and described temperature measuring equipment, described piezometer tube, described protection tube 1 spaced apart; prevent described protection tube 1, described temperature measuring equipment, described piezometer tube 12 charged and then prevent from getting an electric shock during operative, and described high-temperature insulation filler 2 have resistant to elevated temperatures performance.Described high-temperature insulation filler 2 can be the mixture of one or more in magnesia, aluminium nitride, boron nitride.
Described temperature measuring equipment comprises thermocouple wire 3, is arranged on the thermocouple 4 of at least one of described thermocouple wire 3 along the direction that described protection tube lengthwise extends.Described thermocouple 4 is for measuring the temperature level of present position, and its quantity is at least one, and when quantity is one, described thermocouple 4 can be arranged on the end of described thermocouple wire 3 certainly; When described thermocouple 4 is multiple, it is arranged on described thermocouple wire 3 along the direction that described protection tube lengthwise extends, with can the temperature of different depth position in testing well.Described thermocouple wire 3 connects described thermocouple 4, and the outer one end of its well is thermometric link 9, and the temperature that described thermocouple 4 is measured, for connecting temperature measuring set, is showed by temperature measuring set by described thermometric link 9.Described high-temperature insulation filler 2 can be stretched out in described thermocouple wire 3 lower end, and the temperature measured to make described thermocouple 3 is more accurate, not affect by described high-temperature insulation filler 2.Further, consider that described thermocouple wire 3, described thermocouple 4 easily damage in manufacturing process, be provided with pillar 5 outside described temperature measuring equipment, described pillar 5 can protect described thermocouple wire 3, described thermocouple 4.Described pillar 3 lower end can be stretched out described high-temperature insulation filler 2 and be connected with helmet 8.Described helmet 8 can protect the described thermocouple 3 of described thermocouple wire 3 end.
Please refer to Fig. 1 and Fig. 2, separated by described high-temperature insulation filler 2 between described heater and described temperature measuring equipment, described piezometer tube 12, described protection tube 1, conduct electricity to prevent described temperature measuring equipment, described piezometer tube 12, described protection tube 1.The wire 10 that described heater comprises heating wire 11, is connected with described heating wire.The outer one end of described wire 10 well is power connector end 17.The quantity of described heating wire 11 can be one or more.Further, when described heating wire 11 is two, described heating wire 11 is connected, and it connects power supply is two-phase electricity.When being three during described heating wire 11, it connects power supply is three-phase electricity.Described heating wire 11 can reach about 200 along the length in the direction that described protection tube 1 lengthwise extends.Connect power supply by described wire 10, described heating wire 11 generates heat, and to heat the air heat at ignition location place after described high-temperature insulation filler 2, described protection tube 1 to oil gas burning-point.Described heating wire 11 is nichrome wire or siderochrome heating wire.Figure 2 shows that example, described heating wire 11 is two, is separated and is connected by wire between two described heating wire by described high-temperature insulation filler.Described thermocouple wire 3 is one, and described piezometer tube 12 is one, and, separated by described high-temperature insulation filler respectively between described heating wire 11, described pillar 5, described piezometer tube 12 are mutual.
Described piezometer tube 12 is arranged in described protection tube 1, and its lower end port one 3 is for communicating with the well environment at ignition location place, and its upper end port is pressure measurement outlet 16.Described in ignition location place, the lower end port one 3 of piezometer tube 12 communicates with the well environment of present position, and the pressure of present position place well environment can be transferred to described pressure measurement outlet 16 by it.Described pressure measurement outlet is positioned at outside well, as long as the pressure measuring described pressure measurement outlet 16 can test the pressure of igniting position.Described high-temperature insulation filler 2 can be stretched out in described piezometer tube 12 lower end, and then measures the pressure of present position more accurately.Described piezometer tube 12 upper end can be connected with pressure sensor, and the pressure at ignition location place can show by described pressure sensor, by observing the pressure measured by described pressure sensor, and then controls the speed injecting air.
For preventing the pressure oscillation that blocking or its present position occur when operation of the lower end port one 3 of described piezometer tube 12, in described piezometer tube 12 lower end, pressure buffer is installed.
During work, utilize the wrap-up outside well will to enter the ignition location of target oil reservoir under the combustion in situ electric igniter of present embodiment, described power connector end 17 is connected power supply, by described wire 10, described heating wire 11 is worked, the air of heating igniting position, the temperature of present position monitored by described thermocouple 4.The pressure of described piezometer tube 12 monitors ignition position.Gas injection speed is controlled in time according to monitored data.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and manual just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the scope of protection of present invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. a combustion in situ electric ignition device, is characterized in that, comprising:
The protection tube that lengthwise extends, its inside is filled with high-temperature insulation filler;
Be arranged on the temperature measuring equipment in described protection tube;
Be arranged on the heater in described protection tube;
Be arranged on the piezometer tube in described protection tube, its lower end port is used for communicating with the well environment at ignition location place, and its upper end port is pressure measurement outlet;
Separated by described high-temperature insulation filler between described heater and described temperature measuring equipment, described piezometer tube, described protection tube.
2. combustion in situ electric ignition device as claimed in claim 1, is characterized in that: described piezometer tube upper end is connected with pressure sensor.
3. combustion in situ electric ignition device as claimed in claim 1, is characterized in that: described high-temperature insulation filler is stretched out in described piezometer tube lower end.
4. combustion in situ electric ignition device as claimed in claim 1, is characterized in that: port, described piezometer tube lower end is provided with pressure buffer.
5. combustion in situ electric ignition device as claimed in claim 1, is characterized in that: the wire that described heater comprises heating wire, is connected with described heating wire.
6. combustion in situ electric ignition device as claimed in claim 1, is characterized in that: described temperature measuring equipment comprises thermocouple wire, the thermocouple of at least one be arranged on along the direction that described protection tube lengthwise extends on described thermocouple wire.
7. combustion in situ electric ignition device as claimed in claim 6, is characterized in that: be provided with pillar in described protection tube, is provided with described temperature measuring equipment in described pillar; Described pillar lower end is stretched out described high-temperature insulation filler and is connected with helmet.
8. combustion in situ electric ignition device as claimed in claim 1, is characterized in that: described protection tube lower end is connected with protection pipe cap, the wall of described protection pipe cap offers open-work.
9. combustion in situ electric ignition device as claimed in claim 1, is characterized in that: inside, described protection tube lower end is provided with fixed head, and described protection tube upper end is provided with fluid sealant; Described high-temperature insulation filler is between described fixed head and described fluid sealant.
10. combustion in situ electric ignition device as claimed in claim 1, is characterized in that: described high-temperature insulation filler is the mixture of one or more in magnesia, aluminium nitride, boron nitride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410373364.4A CN104265256A (en) | 2014-07-31 | 2014-07-31 | In-situ combustion electric ignition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410373364.4A CN104265256A (en) | 2014-07-31 | 2014-07-31 | In-situ combustion electric ignition device |
Publications (1)
| Publication Number | Publication Date |
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| CN104265256A true CN104265256A (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410373364.4A Pending CN104265256A (en) | 2014-07-31 | 2014-07-31 | In-situ combustion electric ignition device |
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| CN (1) | CN104265256A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499377A (en) * | 2016-10-13 | 2017-03-15 | 中国石油天然气股份有限公司 | Electric ignition system |
| CN106761639A (en) * | 2016-12-26 | 2017-05-31 | 中国石油天然气股份有限公司 | Combustion in situ electric igniter and monitoring system |
| CN106837282A (en) * | 2016-12-13 | 2017-06-13 | 中国石油天然气股份有限公司 | Igniter, igniter and ignition method |
| CN114961669A (en) * | 2022-06-15 | 2022-08-30 | 扬州华宝石油仪器有限公司 | Ignition experiment device for simulating underground and method for simulating and collecting ignition data |
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| CN103277077A (en) * | 2013-05-29 | 2013-09-04 | 中国石油天然气股份有限公司 | Filling and extraction system achieving fireflood auxiliary gravity oil drainage based on intelligent temperature control and filling and extraction method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499377A (en) * | 2016-10-13 | 2017-03-15 | 中国石油天然气股份有限公司 | Electric ignition system |
| CN106499377B (en) * | 2016-10-13 | 2019-12-06 | 中国石油天然气股份有限公司 | electric ignition system |
| CN106837282A (en) * | 2016-12-13 | 2017-06-13 | 中国石油天然气股份有限公司 | Igniter, igniter and ignition method |
| CN106837282B (en) * | 2016-12-13 | 2018-12-25 | 中国石油天然气股份有限公司 | Igniter, igniter and ignition method |
| CN106761639A (en) * | 2016-12-26 | 2017-05-31 | 中国石油天然气股份有限公司 | Combustion in situ electric igniter and monitoring system |
| CN114961669A (en) * | 2022-06-15 | 2022-08-30 | 扬州华宝石油仪器有限公司 | Ignition experiment device for simulating underground and method for simulating and collecting ignition data |
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Application publication date: 20150107 |