CN101709636B - Microwave heating system for lowering viscosity of produced liquid in oil well - Google Patents
Microwave heating system for lowering viscosity of produced liquid in oil well Download PDFInfo
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- CN101709636B CN101709636B CN2009101806391A CN200910180639A CN101709636B CN 101709636 B CN101709636 B CN 101709636B CN 2009101806391 A CN2009101806391 A CN 2009101806391A CN 200910180639 A CN200910180639 A CN 200910180639A CN 101709636 B CN101709636 B CN 101709636B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 81
- 239000007788 liquid Substances 0.000 title claims abstract description 62
- 239000003129 oil well Substances 0.000 title claims abstract description 32
- 239000002826 coolant Substances 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000010779 crude oil Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 239000012530 fluid Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000002354 daily effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The invention relates to the technical field of microwave heating, in particular to a microwave heating system for lowering the viscosity of produced liquid in an oil well, which comprises an underground microwave heating device, a ground microwave conveying device and a distribution box, wherein the underground microwave heating device is arranged at the top of an underground oil layer and is connected with the distribution box by a cable, and the cable is introduced into an underground part from the distribution box by an eccentric testing port of an upper flange on a big cross joint at the top end of a sleeve pipe of a well mouth; the ground microwave conveying device is connected with the distribution box by a cable, and a produced liquid inlet of the ground microwave conveying device is respectively connected with the big cross joint and a small cross joint which are arranged at the top end of the sleeve pipe of the well mouth. In the invention, a microwave source is put into the underground part, a mode of remote power transmission is adopted, the oil well produced liquid in the sleeve pipe is heated, the temperature of the oil well produced liquid can be enhanced, the problem of blockage of the holes of a perforating section is solved, the viscosity of crude oil within 1 meter at the bottom of a well is lowered, the fluidity of the liquid is increased, the daily liquid yield of the oil well is enhanced, the energy is saved, the consumption is lowered, and the cost is saved.
Description
Technical field
Invention relates to the microwave heating technique field, is specifically related to a kind of microwave heating system that reduces viscosity of produced liquid in oil well.
Background technology
After oil field part produced liquid in oil well gets into standing valve, give rise in the process of well head by the stratum or when being transported to the oil station, low because of the produced liquid in oil well temperature, viscosity is high; The flowage friction resistance is big; Make the output flow moving slowly or lose flowability, liquid can't advance pump, and perforated interval is stopped up; The fluid supply capacity of oil pump is poor, forces the oil well can not ordinary production.
The method that this type of oil field solution at present problem adopts is following:
1, heating cable viscosity reduction method: install a 50-100 kilowatt of high-tension transformer additional at well head, through electrical power control cabinet, with heating cable by G.I.H in the hollow rod; The long 200-700 rice of cable, whole process send tele-release heat, and heat energy passes to through sucker rod and is heated crude oil; On average per hour power consumption 40-80 kilowatt; Energy consumption is too high, and omnidistance heat discharge efficient is low, and year is expended ten thousand yuan of 22-25.
2, high-temperature steam is mixed the sticking method of heat drop: high-temperature steam is delivered to well head through the gas injection pipeline, inject into well by sleeve pipe, and day average 5 sides of gas injection rate, 80 yuan of every side's steam, year consumption gas expense is with 150,000 yuan, and the workman often regulates tolerance, and labour intensity is big.
3, dosing viscosity reduction method: regularly add a certain amount of chemical agent every day in well, change the fluid molecule structure, reduces viscosity of crude, and because of viscosity of crude is high, temperature is low, and phase is different, mixes inhomogeneously, and the effect of dosing viscosity reduction is undesirable.
The patent No. discloses a kind of " producing well microwave heating equipment " for the utility model patent of " ZL200620020779.4 ", and it is at well head microwave generator to be installed, and the microwave receiver that is immersed in the crude oil through microwave transmission cable and down-hole links to each other.Microwave is in the process of waveguide; Waveguide is to exist with current forms in the metal surface, and when waveguide distance is long, the thermal losses that its electric current produces will make microwave energy decay significantly; Therefore long Distance Transmission microwave can not produce good heating using microwave effect.
Summary of the invention
In order to solve the problem of the heats that the long Distance Transmission of microwave can not be realized ideal in the prior art; The object of the present invention is to provide a kind of microwave heating system that reduces viscosity of produced liquid in oil well, not only can improve the produced liquid in oil well temperature, reduce viscosity of produced liquid; Strengthen liquid fluidity; Improve the oil well daily fluid production rate, and energy-saving and cost-reducing, practice thrift cost.
In order to achieve the above object; The technical scheme that the present invention adopts is: a kind of microwave heating system that reduces viscosity of produced liquid in oil well; Comprise down-hole microwave heating equipment, terrestrial microwave transport and switchbox, said down-hole microwave heating equipment is arranged at the top of oil horizon, down-hole, links to each other with said switchbox through cable; Said terrestrial microwave transport links to each other with said switchbox through cable, and said down-hole microwave heating equipment comprises one or more microwave heating unit.
Said cable is introduced the down-hole from switchbox by the upper flange eccentric testing mouth on the well head cannula tip big four; The output liquid inlet of said terrestrial microwave transport is connected with little four-way with the big four of well head cannula tip respectively.
Said down-hole microwave heating equipment comprises tubing coupling and shell, and said enclosure is provided with condensate liquid holder, coolant circulation pump, some microwave heating unit and cooler from top to bottom successively; Be provided with the shutoff plate between said microwave heating unit and the coolant circulation pump, be provided with the shutoff plate between said some microwave heating unit, be provided with the shutoff plate between said microwave heating unit and the cooler; Be provided with the cool cycles pipe between said coolant circulation pump and the cooler.
Said microwave heating unit is connected to form by magnetron, radiator, vacuum waveguide pipe, waveguide launcher from top to bottom successively; Be provided with seal diaphragm between said vacuum waveguide pipe and the waveguide launcher, said seal diaphragm is an annular seal space with the shutoff plate and the formed space of shell of its top, and said magnetron, radiator and vacuum waveguide pipe set within it; Formed space is a heating chamber between the shutoff plate of said seal diaphragm and its below and the shell, and said waveguide launcher sets within it, and the shell of said heating chamber part is provided with the feed liquor aperture; The radiator of said cool cycles pipe from some microwave heating unit passes.
Said waveguide launcher bottom is a warp architecture, and its waveguide emission port is relative with said shell.
Said waveguide emission port is provided with insulating slab.
Said terrestrial microwave transport comprises conveyance conduit and some microwave heating equipments, and the output liquid inlet of said conveyance conduit exports with respect to the output liquid that ground is higher than conveyance conduit, and said some microwave heating equipments are vertically set on the conveyance conduit.
The output liquid outlet of said conveyance conduit is taper.
Said microwave heating equipment comprises magnetron and waveguide launcher, and the outlet of said waveguide launcher is provided with insulating slab.
Compared with prior art, the beneficial effect of technical scheme generation of the present invention is following:
1, the present invention puts into the down-hole with microwave source, adopts the long-range mode of sending electricity, and the produced liquid in oil well in the sleeve pipe is heated; Can reach heating using microwave effect efficiently, the thermal efficiency not only can improve the produced liquid in oil well temperature up to more than 80%; Solve the blockage problem of perforated interval eyelet, reduce the viscosity of crude in 1 meter in the shaft bottom, strengthen liquid fluidity; Improve the oil well daily fluid production rate, and energy-saving and cost-reducing, practice thrift cost;
2, waveguide launcher is a warp architecture in the microwave heating equipment of down-hole of the present invention, can make the waveguide emission port also have big distance to the shell on opposite, and the reflection of microwave can be reduced greatly, and essence is improved the microwave distribution problem;
3, the terrestrial microwave transport adopts the flow process and the conical outlet of big caliber conveyance conduit, high in and low out among the present invention, has avoided the sand in the output liquid in conveyance conduit, to form deposition, makes output liquid improve the quick sediment outflow of kinetic energy, guarantees to contain the conveying of sand output liquid.
Description of drawings
Fig. 1 is an overall structure sketch map of the present invention;
Fig. 2 is the structural representation of down-hole microwave heating equipment among the present invention;
Fig. 3 is the structural representation of microwave heating unit in the down-hole microwave heating equipment among the present invention;
Fig. 4 is the structural representation of terrestrial microwave transport among the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment technical scheme of the present invention is described in detail.
Referring to Fig. 1; The present invention provides a kind of microwave heating system that reduces viscosity of produced liquid in oil well; Comprise down-hole microwave heating equipment 1, terrestrial microwave transport 2 and switchbox 3, said down-hole microwave heating equipment 1 is arranged at the top of oil horizon, down-hole, connects with screen casing 5 lower ends; Said down-hole microwave heating equipment 1 links to each other with said switchbox 3 through cable 6, and said cable 6 is introduced the down-hole from switchbox 3 by the upper flange eccentric testing mouth on the well head cannula tip big four 7; Said terrestrial microwave transport links to each other with said switchbox 3 through cable 6, and the output liquid inlet 8 of said terrestrial microwave transport 2 is connected with little four-way 9 with the big four 7 of well head cannula tip respectively.
Referring to Fig. 2 and Fig. 3; The tubing coupling 4 on microwave heating equipment 1 top, said down-hole is used for being connected with screen casing 5, and shell 10 inside of down-hole microwave heating equipment 1 are provided with condensate liquid holder 11, coolant circulation pump 12, some microwave heating unit 13 and cooler 14 from top to bottom successively; Be provided with shutoff plate 15 between said microwave heating unit 13 and the coolant circulation pump 12, be provided with shutoff plate 15 between said some microwave heating unit 13, be provided with shutoff plate 15 between said microwave heating unit 13 and the cooler 14; Be provided with cool cycles pipe 16 between said coolant circulation pump 12 and the cooler 14.
Said microwave heating unit 13 is connected to form by magnetron 17, radiator 18, vacuum waveguide pipe 19, waveguide launcher 20 from top to bottom successively; Be provided with seal diaphragm 21 between said vacuum waveguide pipe 19 and the waveguide launcher 20, the shutoff plate 15 of said seal diaphragm 21 and its top is an annular seal space with shell 10 formed spaces, and said magnetron 17, radiator 18 and vacuum waveguide pipe 19 set within it; Formed space is a heating chamber between the shutoff plate 15 of said seal diaphragm 21 and its below and the shell 10, and said waveguide launcher 20 sets within it, and the shell 10 of said heating chamber part is provided with feed liquor aperture 22; The radiator 18 of said cool cycles pipe 16 from some microwave heating unit passes.Said waveguide launcher 20 bottoms are a warp architecture, and its waveguide emission port 23 is relative with said shell 10, said waveguide emission port and be heated distance between the output liquid being the best greater than 200mm; Said waveguide emission port 23 is provided with insulating slab 24, and insulating slab 24 is a ceramic wafer, and the waveguide emission port is carried out shutoff.
Produced liquid in oil well gets into the down-hole microwave heating equipment through the feed liquor aperture on the shell; Magnetron converts the electric energy that the ground switchbox provides into microwave energy; Microwave energy passes through twice turning in waveguide launcher; Changed the direction of microwave, microwave sends wave energy through the insulated ceramic plates of waveguide emission port to the output liquid that is heated in the heating chamber; Shell wall has big distance because the waveguide emission port is to the opposite, and this is apart from the interior virgo fluid of producing at full capacity, so the reflection of microwave can reduce greatly, essence is improved the microwave distribution problem.
The heat that self produces after the magnetron work; Can the condensate liquid forced circulation in the condensate liquid holder be cooled off through the coolant circulation pump at microwave heating equipment top, down-hole; Condensate liquid is through the flow through radiator of each microwave heating unit of cool cycles pipe; Transform heat to by the output liquid of heating using microwave, guarantee the magnetron operate as normal, increase the service life.
At well head a temperature pick up can also be set; The ground switchbox can carry out the size adjustment of electric current according to the signal of temperature pick up automatically to magnetrons single, a plurality of serial or parallel connections; But start-stop equipment is regulated down-hole and wellhead temperature, reaches the purpose of energy-conservation of consumption reduction.
The present invention puts into the down-hole with microwave source, adopts the long-range mode of sending electricity, and the produced liquid in oil well in the sleeve pipe is heated; Can reach heating using microwave effect efficiently, the thermal efficiency not only can improve the produced liquid in oil well temperature up to more than 80%; Solve the blockage problem of perforated interval eyelet, reduce the viscosity of crude in 1 meter in the shaft bottom, strengthen liquid fluidity; Improve the oil well daily fluid production rate, and energy-saving and cost-reducing, practice thrift cost
Referring to Fig. 4; Said terrestrial microwave transport 2 comprises conveyance conduit 25 and some microwave heating equipments; The output liquid inlet 8 of said conveyance conduit 25 exports 26 with respect to the output liquid that ground is higher than conveyance conduit 25, and said some microwave heating equipments are vertically set on the conveyance conduit 25.The output liquid outlet 26 of said conveyance conduit 25 is taper.Said microwave heating equipment comprises magnetron 27 and waveguide launcher 28, and the outlet of said waveguide launcher 28 is provided with insulating slab 29.
After produced liquid in oil well goes out well, get in the big caliber conveyance conduit of terrestrial microwave transport, the some microwave heating equipments on the conveyance conduit carry out ripple to produced liquid in oil well and penetrate; Make the produced liquid in oil well interior molecules produce 24.5 hundred million times permutation and combination each second; And frictional impact generation heat energy, because of metal pipe-wall does not absorb wave energy, wave energy is touched mutually with metal and is formed reflection; Secondary carries out ripple to produced liquid in oil well and penetrates wave energy utilization rate 100%.The terrestrial microwave transport adopts the flow process and the conical outlet of big caliber conveyance conduit, high in and low out, has avoided the sand in the output liquid in conveyance conduit, to form deposition, makes output liquid improve the quick sediment outflow of kinetic energy, guarantees to contain the conveying of sand output liquid.According to end point temperature requirement, regulate the output current size of switchbox, make switchbox reach the maximum energy-saving state, make end point temperature reach to produce and transport requirement.
Like individual well daily fluid production rate 10 sides, then the per minute flow is 6.95 kilograms, 7 meters of length of flow across, and temperature is heated to 90 ℃ by 40 ℃, 50 ℃ of the temperature difference, 8 kilowatts/hour of power consumption, 1 minute heat time heating time of microwave heating equipment, temperature can reach more than 90 ℃.
Above specific embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely specific embodiment of the present invention; Be not limited to the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. microwave heating system that reduces viscosity of produced liquid in oil well; Comprise down-hole microwave heating equipment, terrestrial microwave transport and switchbox; It is characterized in that: said down-hole microwave heating equipment is arranged at the top of oil horizon, down-hole; Link to each other with said switchbox through cable, said cable is introduced the down-hole from switchbox by the upper flange eccentric testing mouth on the well head cannula tip big four; Said terrestrial microwave transport links to each other with said switchbox through cable, and the output liquid inlet of said terrestrial microwave transport is connected with little four-way with the big four of well head cannula tip respectively;
Said down-hole microwave heating equipment comprises tubing coupling and shell, and said enclosure is provided with condensate liquid holder, coolant circulation pump, some microwave heating unit and cooler from top to bottom successively; Be provided with the shutoff plate between said microwave heating unit and the coolant circulation pump, be provided with the shutoff plate between said some microwave heating unit, be provided with the shutoff plate between said microwave heating unit and the cooler; Be provided with the cool cycles pipe between said coolant circulation pump and the cooler;
Said microwave heating unit is connected to form by magnetron, radiator, vacuum waveguide pipe, waveguide launcher from top to bottom successively; Be provided with seal diaphragm between said vacuum waveguide pipe and the waveguide launcher, said seal diaphragm is an annular seal space with the shutoff plate and the formed space of shell of its top, and said magnetron, radiator and vacuum waveguide pipe set within it; Formed space is a heating chamber between the shutoff plate of said seal diaphragm and its below and the shell, and said waveguide launcher sets within it, and the shell of said heating chamber part is provided with the feed liquor aperture; The radiator of said cool cycles pipe from some microwave heating unit passes.
2. the microwave heating system of reduction viscosity of produced liquid in oil well as claimed in claim 1 is characterized in that: said waveguide launcher bottom is a warp architecture, and its waveguide emission port is relative with said shell.
3. the microwave heating system of reduction viscosity of produced liquid in oil well as claimed in claim 2 is characterized in that: said waveguide emission port is provided with insulating slab.
4. the microwave heating system of reduction viscosity of produced liquid in oil well as claimed in claim 1; It is characterized in that: said terrestrial microwave transport comprises conveyance conduit and some microwave heating equipments; The output liquid inlet of said conveyance conduit exports with respect to the output liquid that ground is higher than conveyance conduit, and said some microwave heating equipments are vertically set on the conveyance conduit.
5. the microwave heating system of reduction viscosity of produced liquid in oil well as claimed in claim 4 is characterized in that: the output liquid outlet of said conveyance conduit is taper.
6. the microwave heating system of reduction viscosity of produced liquid in oil well as claimed in claim 4 is characterized in that: said microwave heating equipment comprises magnetron and waveguide launcher, and the outlet of said waveguide launcher is provided with insulating slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101806391A CN101709636B (en) | 2009-10-27 | 2009-10-27 | Microwave heating system for lowering viscosity of produced liquid in oil well |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101806391A CN101709636B (en) | 2009-10-27 | 2009-10-27 | Microwave heating system for lowering viscosity of produced liquid in oil well |
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| CN101709636A CN101709636A (en) | 2010-05-19 |
| CN101709636B true CN101709636B (en) | 2012-05-30 |
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| EA021551B1 (en) * | 2010-12-16 | 2015-07-30 | Агит Аминович Тынчеров | Device for microwave heating of dielectric mediums |
| CN103114871A (en) * | 2013-03-04 | 2013-05-22 | 刘永杰 | Extraction device and method utilizing microwave coal heating layer |
| CN112240188A (en) * | 2020-10-15 | 2021-01-19 | 吉林大学 | Method for assisting in exploiting natural gas hydrate by utilizing microwave reflecting wall |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4912971A (en) * | 1987-05-27 | 1990-04-03 | Edwards Development Corp. | System for recovery of petroleum from petroleum impregnated media |
| CN2753878Y (en) * | 2004-12-03 | 2006-01-25 | 陈列 | Microwave crude oil heating viscosity-reducing apparatus |
| CN2913594Y (en) * | 2006-05-11 | 2007-06-20 | 龚智勇 | Microwave heating wax-proof device for oil well |
| CN2937469Y (en) * | 2006-05-11 | 2007-08-22 | 龚智勇 | Microwave heating device of producting well |
| CN201535150U (en) * | 2009-10-27 | 2010-07-28 | 新疆敦华石油技术有限公司 | Microwave heating system for reducing viscosity of oil well output liquid |
-
2009
- 2009-10-27 CN CN2009101806391A patent/CN101709636B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4912971A (en) * | 1987-05-27 | 1990-04-03 | Edwards Development Corp. | System for recovery of petroleum from petroleum impregnated media |
| CN2753878Y (en) * | 2004-12-03 | 2006-01-25 | 陈列 | Microwave crude oil heating viscosity-reducing apparatus |
| CN2913594Y (en) * | 2006-05-11 | 2007-06-20 | 龚智勇 | Microwave heating wax-proof device for oil well |
| CN2937469Y (en) * | 2006-05-11 | 2007-08-22 | 龚智勇 | Microwave heating device of producting well |
| CN201535150U (en) * | 2009-10-27 | 2010-07-28 | 新疆敦华石油技术有限公司 | Microwave heating system for reducing viscosity of oil well output liquid |
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| CN101709636A (en) | 2010-05-19 |
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