CN204126625U - A kind of high temperature resistance burnout-proof multichannel continuous-tube - Google Patents
A kind of high temperature resistance burnout-proof multichannel continuous-tube Download PDFInfo
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- CN204126625U CN204126625U CN201420431924.2U CN201420431924U CN204126625U CN 204126625 U CN204126625 U CN 204126625U CN 201420431924 U CN201420431924 U CN 201420431924U CN 204126625 U CN204126625 U CN 204126625U
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Abstract
The utility model relates to a kind of high temperature resistance burnout-proof multichannel continuous-tube.Its technical scheme is: continuous-tube entirety is connected successively by A section, B section, C section, and wherein, C section is that sub-prime injects continuous-tube main body, keeps fire away and is in low-temperature space; B section comprises outer tube, interior pipe, thermocouple cable, cavity between described outer tube with interior pipe is communicated with capillary tubing, make cavity be filled with the liquid of high temperature resistance burnout-proof by capillary tubing, and liquid is put by the multiple spray-holes ejection formation that A section inwall is provided with and is burnt out urban conservation area; Described A section is nozzle body, and thermocouple is equipped with in inside, by thermocouple cable by electrical signal transfer to ground instrument, and then control on carry or the coiled tubing that declines.Beneficial effect is: water is delivered to cavity between the outer tube of B section and interior pipe by capillary tubing, four apertures ejections from the inwall of A section, and B section has just become " boiler tube " of inner filling water, thus avoids ascending pipe when flame four is altered and be burned.
Description
Technical field
The utility model relates to a kind of gasification coal mining continuous-tube, particularly a kind of high temperature resistance burnout-proof multichannel continuous-tube.
Background technology
Along with the development of gasification coal-mining technique, horizontal well continuous-tube drags that to inject the technology that fluid makes coal seam burn in order to produce water-gas and semiwater gas to down-hole day by day ripe.But due to the problem of coal seam permeability, flame burns the nozzle back injecting continuous-tube sometimes, injection continuous-tube is blown, nozzle and thermocouple ineffective, surface fluids injects and is forced to interrupt, again after the down-hole string that restoration fluids injects, re-inject, quality and the speed of gasification coal mining will be affected like this.
Utility model content
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, provides a kind of high temperature resistance burnout-proof multichannel continuous-tube.
A kind of high temperature resistance burnout-proof multichannel continuous-tube, its technical scheme is: continuous-tube entirety is connected successively by A section, B section, C section, wherein, C section is that sub-prime injects continuous-tube main body, keep fire away and be in low-temperature space, connected to form by continuous-tube, capillary tubing and thermocouple cable, capillary tubing and thermocouple cable are installed in continuous-tube inner chamber; One end of B section is connected with A section, the other end is connected with C section, B section comprises outer tube, interior pipe, thermocouple cable, cavity between described outer tube with interior pipe is communicated with capillary tubing, make cavity be filled with the liquid of high temperature resistance burnout-proof by capillary tubing, and liquid is put by the multiple spray-holes ejection formation that A section inwall is provided with and is burnt out urban conservation area; Described A section is nozzle body, and thermocouple is equipped with in inside, by thermocouple cable by electrical signal transfer to ground instrument, and then control on carry or the coiled tubing that declines.
Above-mentioned continuous-tube and interior pipe are provided with welding ring in junction, and it is firm that the endoporus of this welding ring and the endoporus of interior pipe align welded seal.
Size and the wall thickness of above-mentioned outer tube and the diameter of the continuous-tube of C section are identical, the external diameter of the interior pipe of B section and the capillary tubing of C section match, the size of the cross-sectional area of the annular space that the internal diameter of B section outer tube and the external diameter of interior pipe are formed, be five times of the area of passage of capillary tubing, and the length of described B section is not more than 50 meters.
The beneficial effects of the utility model are: form multichannel continuous-tube by A, B, C tri-sections, fixing temperature measuring equipment (thermocouple), control the direction and the flow velocity that inject fluid, make burner hearth as far as possible away from ascending pipe, prevent ascending pipe from crossing cause thermal damage; Water is delivered to cavity between the outer tube of B section and interior pipe by capillary tubing, four apertures ejections from the inwall of A section, B section has just become " boiler tube " of inner filling water, thus avoids ascending pipe when flame four is altered and be burned; C section is the main paragraph of multichannel continuous-tube, for the area increasing main channel as much as possible reduces the injection pressure of host, reduces the cost of main paragraph multichannel continuous-tube, improves economy.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is F-F sectional views of the present utility model;
Accompanying drawing 3 is D-D sectional views of the present utility model;
Accompanying drawing 4 is E-E sectional views of the present utility model;
Accompanying drawing 5 is G-G sectional views of the present utility model;
In upper figure: outer tube 1, interior pipe 2, thermocouple cable 3, capillary tubing 4, continuous-tube 5, welding ring 6, outer tube and nozzle body weld bond 7, nozzle body 8, interior pipe and nozzle body weld bond 9, thermocouple 10, spray-hole 11.
Detailed description of the invention
1-5 by reference to the accompanying drawings, the utility model will be further described:
The high temperature resistance burnout-proof multichannel continuous-tube that the utility model is mentioned, its technical scheme is: continuous-tube entirety is connected successively by A section, B section, C section, wherein, C section is that sub-prime injects continuous-tube main body, keep fire away and be in low-temperature space, connected to form by continuous-tube 5, capillary tubing 4 and thermocouple cable 3, capillary tubing 4 and thermocouple cable 3 are installed in continuous-tube 5 inner chamber; One end of B section is connected with A section, the other end is connected with C section, B section comprises outer tube 1, interior pipe 2, thermocouple cable 3, cavity between described outer tube 1 with interior pipe 2 is communicated with capillary tubing 4, cavity is made to be filled with the liquid of high temperature resistance burnout-proof by capillary tubing 4, liquid adopts water herein, and water sprays formation by multiple spray-holes 11 that A section inwall is provided with and puts and burn out urban conservation area; Described A section is nozzle body 8, and thermocouple 10 is equipped with in inside, by thermocouple cable 3 by electrical signal transfer to ground instrument, and then control on carry or the coiled tubing that declines.
And, A section, B section, C section three are welded as a whole, outward appearance and isodiametric homogeneity coiled tubing just the same, according to the difference of down-hole injected media, its material can be the burnout-proof multichannel continuous-tube that the tubing of the different-diameter that the materials such as stainless steel, alloy steel, carbon steel are made is welded.
Wherein, continuous-tube 5 and interior pipe 2 are provided with welding ring 6 in junction, and the endoporus of this welding ring 6 and the endoporus of interior pipe 2 align welded seal firmly, and can be seen by sectional view: outer tube and nozzle body weld bond 7 and interior pipe and nozzle body weld bond 9.
Size and the wall thickness of above-mentioned outer tube 1 and the diameter of the continuous-tube 5 of C section are identical, the external diameter of the interior pipe 2 of B section and the capillary tubing 4 of C section match, the size of the cross-sectional area of the annular space that the internal diameter of B section outer tube 1 and the external diameter of interior pipe 2 are formed, be five times of the area of passage of capillary tubing 4, and the length of described B section is not more than 50 meters.
The utility model is chosen material first: character, injection pressure flow, temperature etc. according to injected media host assistant agent choose the material of steel, the thickness of steel plate, injection continuous-tube diameter comprises supervisor and auxiliary pipe calculates processing supervisor and the width of steel band needed for auxiliary pipe, adopt applicable welding method, welding equipment in straight weld pipe-forming machine group, weld interior pipe, outer tube, capillary tubing, then according to the accessory processing each section of A, B, C shown in Fig. 1 respectively.
To note pure oxygen: A section is that its length of group welding piece of the nozzle body that 316L stainless steel thick-walled pipe and 316L stainless steel round steel are processed is not more than 1 meter, its effect is: continuous-tube enters well, stationary heat galvanic couple, process the inner nozzle of B section water and the solder side of welding B section inner and outer tubes, the area of passage of nozzle should be less than the area of passage of C section capillary tubing.
B section is the isometric ERW of the different-diameter that 316L stainless steel band welds, the size of outer tube 1 diameter and wall thickness identical with the continuous-tube 5 of C section, the external diameter of the interior pipe 2 of B section determines according to the area of passage size of C section capillary tubing 4, the size of the cross-sectional area of the annular space that the internal diameter of B section outer tube 1 and the external diameter of interior pipe 2 are formed is 5 times of the area of passage of capillary tubing 4.The thickness of interior pipe 2 calculates according to bearing capacity.The length of B section is determined according to the homogeneous degree in the length of horizontal segment and coal seam, is generally not more than 50 meters.The processing dimension of E-E section welding ring, internal diameter is identical with inner tube diameter, and external diameter is less than and the internal diameter of close completion 1.Capillary tubing welding hole is identical with capillary tubing 4 internal diameter.
The diameter of C section multichannel continuous-tube main paragraph continuous-tube 5 and capillary tubing 4, wall thickness are according to the injection rate each via fluid, and injection pressure is determined, length is determined according to the well total length of horizontal well.
Thermocouple cable 3 runs through whole multichannel continuous-tube with long heat-resisting wire, Main Function be the curent change of down-hole is passed to ground instrument, be outsourcing piece.
The manufacture method of the high temperature resistance burnout-proof multichannel continuous-tube that the utility model is mentioned, comprises following making step:
(1) capillary tubing 4 and thermocouple cable 3 are together penetrated continuous-tube 5, the method of penetrating adopts continuous-tube equipment only to enter for 5 times in the well of applicable continuous-tube length by continuous-tube, again capillary tubing and thermocouple cable, and connect thermocouple, one removes in continuous-tube 5, and require that capillary tubing 4 length is more than or equal to the overall length of continuous-tube 5, a segment distance is stretched out at two ends, and the length that thermocouple end stretches out continuous-tube 5 is greater than the overall length that A section adds B section, then trip out that to pass through well stand-by;
(2) A section is welded with B section, and first pipe in B section 2 and the endoporus of A section are aligned welded seal firm, the stretching resistance of weld seam is not less than 80% of interior pipe stretching resistance; Again the endoporus of the endoporus of welding ring 6 and interior pipe 2 is aligned welded seal firmly, the stretching resistance of weld seam is not less than 80% of interior pipe stretching resistance; Then be enclosed within interior pipe 2 by outer tube 1 through welding ring 6, finally that the weld seam at outer tube 1 two ends is firm with A section and welding ring 6 welded seal respectively, the sealing load of weld seam meets fluid infusion pressure requirement, and the stretching resistance of weld seam is greater than 80% of outer tube stretching resistance;
(3) B section is welded with C section, first thermocouple cable 3 is penetrated B section together with thermocouple through welding ring 6 before welding and reach A section, and thermocouple 10 is fixed on A section, then processing capillary tubing 4 solder side coincide consistent with the capillary tubing eyelet welding junction shape of welding ring 6, again capillary tubing 4 and the capillary tubing welding hole in welding ring 6 are aligned welded seal firm, finally that the continuous-tube 5 of C section is firm with outer tube 1 welded seal of B section, weld seam requires with the welding of B section outer tube identical.
Claims (3)
1. a high temperature resistance burnout-proof multichannel continuous-tube, it is characterized in that: continuous-tube entirety is connected successively by A section, B section, C section, wherein, C section is that sub-prime injects continuous-tube main body, keep fire away and be in low-temperature space, connected to form by continuous-tube (5), capillary tubing (4) and thermocouple cable (3), capillary tubing (4) and thermocouple cable (3) are installed in continuous-tube (5) inner chamber; One end of B section is connected with A section, the other end is connected with C section, B section comprises outer tube (1), interior pipe (2), thermocouple cable (3), cavity between described outer tube (1) with interior pipe (2) is communicated with capillary tubing (4), make cavity be filled with the liquid of high temperature resistance burnout-proof by capillary tubing (4), and multiple spray-holes (11) ejection formation that liquid is provided with by A section inwall is put and is burnt out urban conservation area; Described A section is nozzle body (8), and thermocouple (10) is equipped with in inside, by thermocouple cable (3) by electrical signal transfer to ground instrument, and then control on carry or the coiled tubing that declines.
2. high temperature resistance burnout-proof multichannel continuous-tube according to claim 1, it is characterized in that: described continuous-tube (5) and interior pipe (2) are provided with welding ring (6) in junction, it is firm that the endoporus of this welding ring (6) and the endoporus of interior pipe (2) align welded seal.
3. high temperature resistance burnout-proof multichannel continuous-tube according to claim 1, it is characterized in that: size and the wall thickness of described outer tube (1) and the diameter of the continuous-tube (5) of C section are identical, the external diameter of the interior pipe (2) of B section and the capillary tubing (4) of C section match, the size of the cross-sectional area of the annular space that the internal diameter of B section outer tube (1) and the external diameter of interior pipe (2) are formed, be five times of the area of passage of capillary tubing (4), and the length of described B section is not more than 50 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420431924.2U CN204126625U (en) | 2014-08-01 | 2014-08-01 | A kind of high temperature resistance burnout-proof multichannel continuous-tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420431924.2U CN204126625U (en) | 2014-08-01 | 2014-08-01 | A kind of high temperature resistance burnout-proof multichannel continuous-tube |
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| CN204126625U true CN204126625U (en) | 2015-01-28 |
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| CN201420431924.2U Active CN204126625U (en) | 2014-08-01 | 2014-08-01 | A kind of high temperature resistance burnout-proof multichannel continuous-tube |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153757A (en) * | 2014-08-01 | 2014-11-19 | 东营天华石油技术开发有限公司 | High-temperature-resistant and burnout-resistant multi-channel continuous tube and manufacturing method |
| CN112502681A (en) * | 2020-12-08 | 2021-03-16 | 吉林大学 | Multi-channel continuous tube ignition system for underground coal seam gasification |
-
2014
- 2014-08-01 CN CN201420431924.2U patent/CN204126625U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153757A (en) * | 2014-08-01 | 2014-11-19 | 东营天华石油技术开发有限公司 | High-temperature-resistant and burnout-resistant multi-channel continuous tube and manufacturing method |
| CN106285615A (en) * | 2014-08-01 | 2017-01-04 | 王伟 | A kind of pipe and manufacture method continuously |
| CN104153757B (en) * | 2014-08-01 | 2017-01-18 | 东营天华石油技术开发有限公司 | High-temperature-resistant and burnout-resistant multi-channel continuous tube |
| CN106285615B (en) * | 2014-08-01 | 2019-07-02 | 青岛北船管业有限责任公司 | A kind of continuously pipe and manufacturing method |
| CN112502681A (en) * | 2020-12-08 | 2021-03-16 | 吉林大学 | Multi-channel continuous tube ignition system for underground coal seam gasification |
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