CN201137486Y - Underground cable-free electromagnetic electric heating film compound heating oil production device - Google Patents
Underground cable-free electromagnetic electric heating film compound heating oil production device Download PDFInfo
- Publication number
- CN201137486Y CN201137486Y CNU2007200138731U CN200720013873U CN201137486Y CN 201137486 Y CN201137486 Y CN 201137486Y CN U2007200138731 U CNU2007200138731 U CN U2007200138731U CN 200720013873 U CN200720013873 U CN 200720013873U CN 201137486 Y CN201137486 Y CN 201137486Y
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- oil
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- oil pipe
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 32
- 150000001875 compounds Chemical class 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title description 5
- 238000005485 electric heating Methods 0.000 title description 3
- 239000003129 oil well Substances 0.000 claims abstract description 24
- 238000011084 recovery Methods 0.000 claims abstract description 10
- 239000002131 composite material Substances 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 239000003921 oil Substances 0.000 abstract description 62
- 239000010779 crude oil Substances 0.000 abstract description 13
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 239000012528 membrane Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model relates to an oil well heating device, especially a compound heating oil recovery device of no cable electromagnetism electric heat membrane in pit. The device consists of a power supply control cabinet, a power supply cable, a wire connector, a sucker rod, an oil pipe, a centralizer, a sleeve and an oil well pump; an insulating short joint is arranged between the oil pipe and the sucker rod, the wire connector is respectively connected with the oil pipe and the power control cabinet through a power cable, a conductive device is arranged between the oil pipe and the sleeve, and an oil layer power supply heater is arranged in the oil pipe at the lower part of the oil well pump. The device is used for performing electric heat conversion on an oil well pipe column and a casing pipe by supplying power and heating to an oil pipe in an oil well, and forming a heat source under the action of an alternating magnetic field, so that the viscosity and the wax content of crude oil to be lifted around a well hole are reduced in a shaft in time, and accordingly, the thick oil and the high-pour-point oil are reasonably exploited in a flowing state.
Description
Technical field:
The utility model relates to Heating device for oil well; Especially a kind of down-hole does not have the composite heating oil recovery device of cable electromagnetic electrothermic film.
Background technology:
The Liaohe Oil Field is the maximum viscous crude producing region of China, output accounts for 57% of national total output, because the influence of the high viscosity of crude oil is relatively poor in the formation pore internal mobility, be subjected to the influence so the recovery ratio of shaft bottom wellbore permeability very low in addition, the oil well pump discharge capacity is reduced, cause crude oil to be difficult to flow into well head, the sucker rod load increase occurs even cause the rod parting situation, at the problems referred to above, at present, adopt thickened oil steam-stimulated technology, utilized auxiliary heat/chemical recovery technology, catalyzer, hydrogenation hot tearing technology, and flow string utilizes electrical heating, as do not have cable oil pipe electromagnetism heating and hollow sucker rod cable heating technique also can make the viscous crude viscosity reduce, and reduce the wax deposition influence, can obtain certain effect to improving recovery ratio.But above-mentioned measure can not solve the big problem of deep layer position viscous crude flow resistance, cost for oil production height, heater short unfavorable situation in application life still can occur yielding poorly.No matter think that formation oil flows to the shaft bottom or crude oil gives rise to ground from the shaft bottom, must need certain heat just can reach the purpose of utilizing reducing thick oil viscosity, a kind of for this reason down-hole does not have the composite heating oil recovery device of cable electromagnetic electrothermic film can adapt to heavy crude producing, the high oil require that coagulates.
The utility model content:
The utility model purpose is that a kind of down-hole that provides in order to overcome above-mentioned shortcoming does not have the composite heating oil recovery device of cable electromagnetic electrothermic film, can in crude oil lifting process, accompany heat to production well, play and reduce the interior Crude viscosity of pit shaft and prevent the effect of pit shaft tubing wax, thereby reduce the crude oil flow resistance, reach and improve oil well production efficient purpose.
The technical scheme of utility model:
The task of Ti Chuing for achieving the above object, this device is made up of electrical power control cabinet, feed cable, electric wire connecting junction, sucker rod, oil pipe, centralizer, sleeve pipe, oil well pump; Between described oil pipe and the sucker rod insulating short section is housed, the one section sucker rod that wherein extends in the insulating short section center is the insulation sucker rod, described electric wire connecting junction is connected with oil pipe and electrical power control cabinet respectively by feed cable, between oil pipe and sleeve pipe, conductor is housed, an oil reservoir power supply heater is housed in the oil pipe that the oil well pump bottom connects; Described oil pipe tube wall adopts power supply variable-frequency electromagnetic heating power supply, and oil reservoir power supply heater is made up of several electrothermal film heaters.
The utility model working method is to realize like this.
During work, by frequency conversion inversion and the control action of electrical power control cabinet by transformer, make electric current in cable is sent into the down-hole electric wire connecting junction, pass in the conductor and by electrothermal film heater then and form circuit passband with sleeve pipe, since above-mentioned two kinds of mode of heatings all be by oil pipe carry out and oil pipe power supply is heated to be the frequency conversion mode, oil reservoir power supply be heated to be the Electric radiant Heating Film mode of heating like this when carrying out the electric heating conversion Electric radiant Heating Film above the tubing string can produce alternating electromagnetic field and form thermal source, so stratum around the energy heater wellbores, make by the crude oil of lifting and in pit shaft, reduce the viscosity freezing point, thereby guaranteed crude oil flow, oil well is under normal circumstances produced.
Description of drawings
Accompanying drawing is the utility model structural representation.
The specific embodiment:
The utility model is provided by following examples, is illustrated below in conjunction with accompanying drawing:
Among the figure by grounding wire 1,, 2, feed cable, 3, insulating short section, 4, electric wire connecting junction, 5, the insulation sucker rod, 6, sucker rod, 7, oil pipe, 8, centralizer, 9, sleeve pipe, 10, oil well pump, 11, oil reservoir, 12, horizon d, 13, oil reservoir power supply heater, 14, conductor, 15, electrical power control cabinet, 16, oil well forms.The well depth structure of oil well 16 is: being lowered to sleeve pipe 9, oil pipe 7 and sucker rod 6 in oil well 16, is crude oil in the annular space between oil pipe and oil pipe and the sleeve pipe, and the cover outer tube layer is a horizon d 12; Between the oil pipe on oil well top and sleeve pipe, be lowered to centralizer 8, can play oil pipe effect between two parties in oil well, sucker rod 6 is connecting oil well pump 10, between oil pipe 7 and the sucker rod 6 insulating short section 3 is housed, the effect of this Duan Jie is to make to form insulation between insulation sucker rod 5 and the oil pipe, avoid the short circuit current phenomenon is appearred in oil pipe energising when heating, the electric wire connecting junction 4 that is equipped with in oil pipe 7 external wall of upper portion positions communicates with electrical power control cabinet 15 by cable 2, transformer generation frequency conversion inversion and control electric current in the electrical power control cabinet are sent on the oil pipe, thereby the oil well inner oil tube is heated, also can heat the oil reservoir power supply heater 13 at oil well pump 10 following positions.Can be when oil reservoir power supply heater 13 uses according to core intersection, selection is lowered to number, so that there are enough heats to make the interior crude oil of oil pipe, the high oil that coagulates obtains heat, in addition, because a conductor 14 has been installed between oil pipe 7 and sleeve pipe 9, not only can play the power circuit effect, can when be heated, oil pipe sleeve pipe be heated up, thereby whole pit shaft all is in the thermal field scope again.
Because the utility model power supply heating is all carried out on oil pipe, do not use cable power supply only to adopt power supply frequency conversion (being kelvin effect) and oil reservoir power supply heater 13, the Electric radiant Heating Film mode of heating is finished.Pit shaft and oil reservoir heated, and oil reservoir power supply heater 13 is lowered in the oil pipe of oil reservoir position oil well pump 10 below when installing, and oil reservoir power supply heater only is used for the casing tube tube wall and heats.
Embodiment 2;
The power supply of electrical power control cabinet 15: be FHM-Y-30/220/S-L input voltage 380V, 220V, output frequency 400HZ, 190 ℃ of Electric radiant Heating Film heated length 9000MM, down-hole maximum temperatures.Impedance and inductance that above-mentioned no cable electromagnetism heating oil pipe and Electric radiant Heating Film mode of heating have utilized down-hole oil tube, Electric radiant Heating Film to produce in the down-hole, make electric energy from top to bottom in conductive process, constantly carry out the electric heating conversion, and on the whole piece tubing string with Electric radiant Heating Film on the electric field alternating magnetic field that produces, flow string is heated.And the Electric radiant Heating Film temperature formed thermal source that raises is used for heating around the well oil reservoir and lifting crude oil, reduction viscous crude viscosity and waxy crude oil freezing point, guarantees crude oil fluidity, makes the oil well ordinary production.
Claims (2)
1, a kind of down-hole does not have the composite heating oil recovery device of cable electromagnetic electrothermic film: be made up of electrical power control cabinet (15), feed cable (2), electric wire connecting junction (4), sucker rod (6), oil pipe (7), centralizer (8), sleeve pipe (9), oil well pump (10), it is characterized in that: between oil pipe (7) and the sucker rod (6) insulating short section (3) is housed, wherein extend in insulating short section in intracardiac one section sucker rod for the insulation sucker rod (5), described electric wire connecting junction (4) is connected with oil pipe (7) and electrical power control cabinet (15) respectively by feed cable (2); Between oil pipe (7) and sleeve pipe (9), conductor (14) is housed, an oil reservoir power supply heater (13) is housed in the oil pipe (7) that oil well pump (10) bottom connects.
2, a kind of down-hole according to claim 1 does not have the composite heating oil recovery device of cable electromagnetic electrothermic film, it is characterized in that: described oil pipe tube wall adopts power supply variable-frequency electromagnetic heating power supply, and oil reservoir power supply heater (13) is formed for several electrothermal film heaters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200138731U CN201137486Y (en) | 2007-08-20 | 2007-08-20 | Underground cable-free electromagnetic electric heating film compound heating oil production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200138731U CN201137486Y (en) | 2007-08-20 | 2007-08-20 | Underground cable-free electromagnetic electric heating film compound heating oil production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201137486Y true CN201137486Y (en) | 2008-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200138731U Expired - Fee Related CN201137486Y (en) | 2007-08-20 | 2007-08-20 | Underground cable-free electromagnetic electric heating film compound heating oil production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201137486Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675363A (en) * | 2015-02-06 | 2015-06-03 | 常州维航节能科技有限公司 | Functional energy-saving and heat-preserving device for oil pumping pipe of oil field |
| CN104790930A (en) * | 2015-04-15 | 2015-07-22 | 盘锦宏昌实业有限责任公司 | Thickened-oil step-lifting cable-free RC electric heating film heating oil extracting system |
| CN104912531A (en) * | 2015-04-15 | 2015-09-16 | 盘锦宏昌实业有限责任公司 | Condensate oil well reservoir RC electric heating film heating oil extraction system |
| CN106337675A (en) * | 2016-11-21 | 2017-01-18 | 重庆科技学院 | Formation electric eddy current heating thick oil recovery system and the mining method |
| CN107524431A (en) * | 2017-07-27 | 2017-12-29 | 方明环保科技(漳州)有限公司 | The conveying device for the material that mobility varies with temperature |
| CN111663905A (en) * | 2019-03-08 | 2020-09-15 | 中国石油天然气股份有限公司 | Self-heating casing string |
| CN115110925A (en) * | 2022-07-05 | 2022-09-27 | 东营久森石油科技有限公司 | Electromagnetic frequency conversion intensification viscosity reduction device |
-
2007
- 2007-08-20 CN CNU2007200138731U patent/CN201137486Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675363A (en) * | 2015-02-06 | 2015-06-03 | 常州维航节能科技有限公司 | Functional energy-saving and heat-preserving device for oil pumping pipe of oil field |
| CN104790930A (en) * | 2015-04-15 | 2015-07-22 | 盘锦宏昌实业有限责任公司 | Thickened-oil step-lifting cable-free RC electric heating film heating oil extracting system |
| CN104912531A (en) * | 2015-04-15 | 2015-09-16 | 盘锦宏昌实业有限责任公司 | Condensate oil well reservoir RC electric heating film heating oil extraction system |
| CN104912531B (en) * | 2015-04-15 | 2017-11-03 | 盘锦宏昌实业有限责任公司 | Condensation oil reservoir RC heated by electrothermal film oil extraction systems |
| CN106337675A (en) * | 2016-11-21 | 2017-01-18 | 重庆科技学院 | Formation electric eddy current heating thick oil recovery system and the mining method |
| CN107524431A (en) * | 2017-07-27 | 2017-12-29 | 方明环保科技(漳州)有限公司 | The conveying device for the material that mobility varies with temperature |
| CN111663905A (en) * | 2019-03-08 | 2020-09-15 | 中国石油天然气股份有限公司 | Self-heating casing string |
| CN115110925A (en) * | 2022-07-05 | 2022-09-27 | 东营久森石油科技有限公司 | Electromagnetic frequency conversion intensification viscosity reduction device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 Termination date: 20110820 |