CN204476382U - A kind of underground electric heating igniter - Google Patents
A kind of underground electric heating igniter Download PDFInfo
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- CN204476382U CN204476382U CN201520097197.5U CN201520097197U CN204476382U CN 204476382 U CN204476382 U CN 204476382U CN 201520097197 U CN201520097197 U CN 201520097197U CN 204476382 U CN204476382 U CN 204476382U
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Abstract
The utility model provides a kind of underground electric heating igniter, comprise heat generating components, cold and hot transition member and connecting part, described heat generating components and cold and hot transition member are positioned at oversheath, connecting part is positioned at wire connection cavity, described wire connection cavity and oversheath argon arc welding, to ensure the isolating seal of wire connection cavity and heat generating components, described heat generating components comprises plug and is wound on the stainless steel mineral insulation heating cable of its external surface, described cold and hot transition member comprises cold and hot joint and cable cold line, cold and hot joint is used for heat generating components to dock with cable cold line, described cable cold line leads in wire connection cavity, the lead-out wire of wire connection cavity is connected with electricity cable.The utility model obviously can reduce in appearance and size, can place for a long time under the high-temperature and high-pressure conditions of down-hole, also solves the problem that product realizes powerful heating in relatively little heating region simultaneously.
Description
Technical field
The utility model relates to a kind of igniter, especially a kind of underground electric heating igniter.
Background technology
Igniter is the capital equipment of oil exploitation fireflood technology, and it applies to the heating igniting of the downhole oil gas mixture of field of petroleum exploitation viscous crude producing region oil well.By heater, high temperature combustible oil gas mixture is produced to thick oil underground well heat temperature raising, and make oil reservoir reach ignition condition to shaft bottom input pressure-air.After producing burning, around viscous crude decomposes viscosity reduction and pushes other well to so that exploitation.The produce oil region of current China also exists a large amount of Gao Ningyou district, and fireflood igniting oil recovery is absolutely necessary technological means, and the igniter as main force's corollary equipment has very wide market prospects.In addition, except participating in fireflood well point fire, igniter can also be used for the reducing thick oil viscosity exploitation of producing well after the parameter such as Modulating Power and heat generation density.
Be take electrothermal tube as the underground electric heating igniter of heater element with one of product that the application is the most close, this product is divided into heating part, cold and hot transition portion, wiring part.Heater element electrothermal tube is wound on plug, is built in metal shell; Mineral insulated power cables, as changeover portion, for the connection between heating part and general distribution cable, is placed in adapter cavity; Wiring part crimps with power cable or welds and supplies with support equipment electric power.But the defect of the said goods is that resistance to down-hole high pressure high temperature capabilities is poor, and degree of protection is low, bad mechanical strength, product are long and heavy, and application life is short, and major part is disposable product, deficiency in economic performance.
Summary of the invention
For the problems referred to above, main purpose of the present utility model is to provide a kind of underground electric heating igniter, and it can place for a long time under the high-temperature and high-pressure conditions of down-hole, and can realize powerful heating igniting in relatively little heating region.
In order to achieve the above object, the utility model adopts following technical scheme: a kind of underground electric heating igniter, comprise heat generating components, cold and hot transition member and connecting part, described heat generating components and cold and hot transition member are positioned at oversheath, connecting part is positioned at wire connection cavity, described wire connection cavity and oversheath argon arc welding, to ensure the isolating seal of wire connection cavity and heat generating components, described heat generating components comprises plug and is wound on the stainless steel mineral insulation heating cable of its external surface, described cold and hot transition member comprises cold and hot joint and cable cold line, cold and hot joint is used for heat generating components to dock with cable cold line, described cable cold line leads in wire connection cavity, the lead-out wire of wire connection cavity is connected with electricity cable.
As further preferably, adopt three stainless steel mineral insulation heating cables to be evenly wound on plug, fix every the symmetrical colligation of a segment distance stainless steel wire.
As further preferred, described plug is stainless-steel pipe, surface punching.
As further preferred, the winding structure of described heating cable is: first on plug, interval 15cm punches, and three groups of heating cable entirety are wound around, and are wound around pitch 6.2mm, fixes every the colligation of 15cm stainless steel wire symmetry.
As further preferably, the stainless steel mineral insulation heating cable of described mandrel outer coiling is on the surface connected with cable cold line by cold and hot joint.
As preferably further, core leads in wire connection cavity by envelope cup by described cable cold line, coolant seal after the melting of filling high temp glass powder in envelope cup.
As further preferred, described cable cold line is stainless steel mineral insulated cable.
As further preferably, in described cold and hot joint, fill high-purity magnesium oxide powder, carry out welding with argon arc welding and ensure its insulated enclosure.
As further preferred, epoxy resin is filled with in described wire connection cavity inside, further ensures the isolating seal of wire connection cavity and heat generating components.
As further preferred, described wire connection cavity and oversheath by Flange joint, and arrange the sealing of red copper pad in junction.
As further preferred, described oversheath is metallic jacket.
The beneficial effects of the utility model are: the utility model substitutes traditional electrical heat pipe as heater element using stainless steel mineral insulation heating cable, solving existing product under the high temperature conditions cannot long-time heating medium, application life is short, appearance and size is large problem, it obviously can reduce in appearance and size, also solves the problem that product realizes powerful heating in relatively little heating region simultaneously.The utility model adopts the sealings such as red copper pad, effective protection of metallic jacket, coordinates the technology of argon arc welding and epoxy resin, solves this problem of environment for use that existing product cannot bear HTHP for a long time.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment oil well fireflood underground electric heating igniter.
What mark in accompanying drawing is described as follows: 1-wire connection cavity, 2-flange, 3-cable cold line envelope cup, 4-cable cold line cap, 5-thermocouple envelope cup, 6-thermocouple the cold and hot joint of cap, 7-, 8-red copper pad, 9-heat generating components front end baffle, 10-oversheath guard rails, 11-plug, 12-oversheath, 13-tail end end socket, 14-heating cable, 15-hot line.
Detailed description of the invention
The realization of the utility model object, functional characteristics and beneficial effect, be described further below in conjunction with specific embodiment and accompanying drawing.
Below in conjunction with the drawings and specific embodiments, technical scheme described in the utility model is described in further detail, to make those skilled in the art better can understand the utility model being implemented, but illustrated embodiment is not as to restriction of the present utility model.
As shown in Figure 1, the utility model embodiment oil well fireflood underground electric heating igniter comprises heat generating components, cold and hot transition member and connecting part, described heat generating components and cold and hot transition member are positioned at stainless steel oversheath 12, connecting part is positioned at wire connection cavity 1, described wire connection cavity 1 and oversheath 12 argon arc welding, to ensure the isolating seal of wire connection cavity 1 and heat generating components, described heat generating components comprises plug 11 and is wound on the stainless steel mineral insulation heating cable 14 of its external surface, described cold and hot transition member comprises cold and hot joint 7 and cable cold line, cold and hot joint 7 is for docking stainless steel mineral insulation heating cable 14 with cable cold line, described cable cold line leads in wire connection cavity 1, the extraction copper core of wire connection cavity 1 is connected with externally fed cable.
The utility model embodiment adopts three stainless steel mineral insulation heating cables 14 to be evenly wound on plug 11, fixes every the symmetrical colligation of a segment distance stainless steel wire.Described plug 11 is stainless-steel pipe, and the winding structure of described heating cable 14 is: first on plug 11, interval 15cm punches, and three groups of heating cable 14 entirety are wound around, and are wound around pitch 6.2mm, fixes every the symmetrical colligation of 15cm stainless steel wire.
Core leads in wire connection cavity 1 by cold line envelope cup 3 by described cable cold line, coolant seal after the melting of filling high temp glass powder in cold line envelope cup 3.Described cable cold line is stainless steel mineral insulated cable.
Fill high-purity magnesium oxide powder in described cold and hot joint 7, carry out welding with argon arc welding and ensure its insulated enclosure.
Epoxy resin is filled with in described wire connection cavity 1 inside, further ensures the isolating seal of wire connection cavity 1 and heat generating components.
Described wire connection cavity 1 is connected by flange 2 with oversheath 12, and arranges red copper pad 8 in junction and seal.
The utility model embodiment according to technical requirements to fixed length after heater element Lectotype and calculation, and determine plug 11 length and external diameter, and determine cold and hot transition section length according to Whole Equipment length requirement, 50KW oil well fireflood electrothermal ignitor determination overall length is 4m, plug length is 3350mm, and the part at cold and hot transition member place and wire connection cavity length are 650mm.
The technology that in another the utility model, not detailed part is well known to the skilled person.
Claims (10)
1. a underground electric heating igniter, comprise heat generating components, cold and hot transition member and connecting part, it is characterized in that: described heat generating components and cold and hot transition member are positioned at oversheath, described connecting part is positioned at wire connection cavity, described wire connection cavity welds with oversheath, described heat generating components comprises plug and is wound on the stainless steel mineral insulation heating cable of its external surface, described cold and hot transition member comprises cold and hot joint and cable cold line, cold and hot joint is used for heat generating components to dock with cable cold line, described cable cold line leads in wire connection cavity, the lead-out wire of wire connection cavity is connected with electricity cable.
2. underground electric heating igniter according to claim 1, is characterized in that: adopt three stainless steel mineral insulation heating cables to be evenly wound on plug, fixes every the symmetrical colligation of a segment distance stainless steel wire.
3. underground electric heating igniter according to claim 1 and 2, is characterized in that: described plug is stainless-steel pipe, surface punching.
4. underground electric heating igniter according to claim 1, it is characterized in that: the winding structure of described heating cable is: first on plug, interval 15cm punches, three groups of heating cable entirety are wound around, and are wound around pitch 6.2mm, fix every the symmetrical colligation of 15cm stainless steel wire.
5. underground electric heating igniter according to claim 1, is characterized in that: the stainless steel mineral insulation heating cable of described mandrel outer coiling is on the surface connected with cable cold line by cold and hot joint.
6. underground electric heating igniter according to claim 1 or 5, is characterized in that: core leads in wire connection cavity by envelope cup by described cable cold line, fills with the melting high temp glass powder sealing of cooling in envelope cup.
7. underground electric heating igniter according to claim 1, is characterized in that: described cable cold line is stainless steel mineral insulated cable.
8. underground electric heating igniter according to claim 1, is characterized in that: fill high-purity magnesium oxide powder in described cold and hot joint.
9. underground electric heating igniter according to claim 1, is characterized in that: epoxy resin is filled with in described wire connection cavity inside.
10. underground electric heating igniter according to claim 1, is characterized in that: described wire connection cavity and oversheath by Flange joint, and arrange the sealing of red copper pad in junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520097197.5U CN204476382U (en) | 2015-02-11 | 2015-02-11 | A kind of underground electric heating igniter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520097197.5U CN204476382U (en) | 2015-02-11 | 2015-02-11 | A kind of underground electric heating igniter |
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| Publication Number | Publication Date |
|---|---|
| CN204476382U true CN204476382U (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520097197.5U Active CN204476382U (en) | 2015-02-11 | 2015-02-11 | A kind of underground electric heating igniter |
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| CN (1) | CN204476382U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837282A (en) * | 2016-12-13 | 2017-06-13 | 中国石油天然气股份有限公司 | Igniter, ignition device and ignition method |
| CN106917617A (en) * | 2015-12-25 | 2017-07-04 | 中国石油天然气股份有限公司 | Ignition tubular column |
-
2015
- 2015-02-11 CN CN201520097197.5U patent/CN204476382U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917617A (en) * | 2015-12-25 | 2017-07-04 | 中国石油天然气股份有限公司 | Ignition tubular column |
| CN106837282A (en) * | 2016-12-13 | 2017-06-13 | 中国石油天然气股份有限公司 | Igniter, ignition device 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, ignition device and ignition method |
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