CN2331759Y - Oil well electromagnet heating device - Google Patents
Oil well electromagnet heating device Download PDFInfo
- Publication number
- CN2331759Y CN2331759Y CN 97249888 CN97249888U CN2331759Y CN 2331759 Y CN2331759 Y CN 2331759Y CN 97249888 CN97249888 CN 97249888 CN 97249888 U CN97249888 U CN 97249888U CN 2331759 Y CN2331759 Y CN 2331759Y
- Authority
- CN
- China
- Prior art keywords
- oil
- heater
- heating device
- pipe
- electromagnetic heating
- 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.)
- Expired - Fee Related
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 23
- 239000003129 oil well Substances 0.000 title claims abstract description 9
- 230000005291 magnetic effect Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 8
- 241000196324 Embryophyta Species 0.000 claims description 5
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 57
- 239000010779 crude oil Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005345 coagulation Methods 0.000 abstract 3
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 230000002500 effect on skin Effects 0.000 abstract 1
- 238000000605 extraction Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 230000001112 coagulating effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Frying-Pans Or Fryers (AREA)
Abstract
The utility model relates to an electromagnetic heating device for an oil well, which is used for the exploitation of thick oil or high-coagulation oil in an oil field. The electromagnetic heating device is composed of a frequency conversion device (1), an oil exploiting well head (2), a sleeve pipe (3), an oil pipe (4), a power supply cable (5), a well casing heater (6), a short circuit anchor (7), an oil layer heater (8) and a temperature sensor (9). When the frequency conversion device (1) supplies certain current (40A to 60A) to the well casing heater and the oil layer heater through the power supply cable, an electromagnetic heating body can be formed by a heater coil, the oil pipe and the sleeve pip to heat the oil layers near to the well casing, the oil pipe and the sleeve pipe; thereby, a temperature field is formed, the temperature of the well casing and the temperature of the oil layer are increased, and the skin effect formed by the thick oil or the high-coagulation oil near to the sleeve pipe is solved. Thus, the normal production of the crude oil is assured. Because the electromagnetic heating device has the advantages of simple structure, low cost and obvious heating effect, the electromagnetic heating device can be widely applied to the exploitation of the thick oil or the high-coagulation oil in the oil industry.
Description
The utility model relates to a kind of electromagnetic heating device for oil well; Belong to oilfield extracting device of oil class.
Be used for viscous crude or high oil exploitation deep fat or the hot water circuit companion by the use of thermal means of coagulating in the prior art, adopt bilayer sleeve: heating liquid is generally sent between the tubing and casing, return ground from the annular space between sleeve pipe and the outer tube again, this method is only to the pit shaft heating, to oil reservoir heating poor effect.Equally, it all is to heat pit shaft that exploitation recent years and the hollow rod heating oil extraction device of using and hollow rod are got over the pump heating oil extraction device, and oil reservoir almost is not heated.
Crude oil is in recovery process, and the very big heat that often scatters and disappears from the oil reservoir to the pit shaft makes viscous crude thicker, and the high oil that coagulates also can solidify, and can not enter in the oil pipe, and this phenomenon is called the Kelvin effect of crude oil.Bring certain difficulty to exploitation, this heater is (oil reservoir and pit shaft) in heating interval.Pit shaft is heated, and oil reservoir also is heated, and in the certain limit of oil reservoir the formation temperature field, overcome the Kelvin effect that occurs in the oil extraction process, guarantee viscous crude and high smooth exploitation of coagulating oil.
The utility model is achieved in that
This device is at pit shaft and the many groups of oil reservoir place design coil, and every group of coil is an electromagnetism calandria, when coil electricity, the electric current of coil changes electric energy and forms powerful magnetic flux, by oil pipe, short circuit anchor, sleeve pipe constitutes magnetic conductive loop, produces more heat on oil pipe, sleeve pipe, these heats not only heat oil pipe, also heated sleeve pipe, and sleeve pipe heat forms a thermal field to the oil reservoir diffusion near oil reservoir, improve near the reservoir temperature of sleeve pipe, guaranteed the ordinary production of crude oil.
The utility model has the advantages that: because the oil reservoir position in oil well is provided with short circuit anchor and oil reservoir heater, behind converter plant, electric energy in many groups coil of oil reservoir position is changed form strong magnetic flux, thereby improved reservoir temperature and produce very big heat, make viscous crude and the high oil that coagulates reduce viscosity, and by extraction.
In addition, the utility model has also overcome pit shaft heating simple in the existing technology or simple oil reservoir heating shortcoming, has realized the omnidistance heating of pit shaft and oil reservoir, thereby guaranteed the crude oil ordinary production, the utility model electromagnetic heating device for oil well is simple in structure, does not have specific (special) requirements, is easy to processing and manufacturing.Therefore can be widely used in the viscous crude or the exploitation of high oil with fixed attention of petroleum industry.
The utility model is provided by following examples
Illustrated below in conjunction with accompanying drawing
Accompanying drawing: the utility model structural representation
This device is made up of converter plant 1, production wellhead 2, sleeve pipe 3, oil pipe 4, electricity cable 5, wellbore heater 6, short circuit anchor 7, double pipe heater 8, temperature pick up 9.
The structure assembling form of this device is: a converter plant 1 is installed in ground well head 2 positions, within electricity cable 5 G.I.H oil pipes 4, the outer position of the oil pipe of oil reservoir position in oil well, be with a branch wellbore heater 6 (being heater coil) every one section in 100--200 rice, the discrepancy end of this coil is connected with electricity cable 5, the 7 usefulness screwed connections of a short circuit anchor are arranged between double pipe heater 8 (heater coil) heater on oil pipe, short circuit anchor and oil pipe 4, sleeve pipe 3 constitutes magnetic loop together, just magnetic energy is become pit shaft and oil reservoir heating necessary energy when coil produces strong magnetic flux at magnetic conductive loop during by certain electric current (40--60A); Short circuit anchor 7 is for being a rectangular body that forms with the ferromagnetic material making, and its magnetic property is good.In order to form the electromagnetism calandria, be located at the ring sleeve heater 8 of the oil pipe outside of oil reservoir position, within coil, be connected with cable, in double pipe heater the inside a temperature pick up 9 is arranged, be connected with the ground indication panel by cable, its effect provides heated reservoir temperature, thereby tip ground is rationally grasped the downhole temperature height; Just a heating system is sealed in the oil well.
During system works at first the three-phase 380V that provides of electric supply installation, 50Hz alternating current, after converter plant 1 electricity cable 5 is given wellbore heater 6 and oil reservoir heater 8, pit shaft and oil reservoir heater just obtain the heating current of 40A--60A, and form the electromagnetism calandria, pit shaft, oil reservoir and near crude oil are heated.Eliminate near the Kelvin effect of oil reservoir, guaranteed the ordinary production of crude oil.
Temperature pick up 9 also can be implemented oil reservoir or temperature in wellbore are detected, and when pit shaft or reservoir temperature surpassed set-point, relay began action in the Ground Control cabinet, and it is former to cut off electricity, guarantees the heater safe operation.
Claims (2)
1. electromagnetic heating device for oil well; Be by the sleeve pipe (3) in ground converter plant (1) and the well, oil pipe (4) and pass that electricity cable (5) in the oil pipe forms, it is characterized in that described oil pipe outside is every 100--200 rice one segment distance, be with a branch wellbore heater (6) in the oil pipe outside, this coil is come in and gone out to hold and is connected with electricity cable (5), a rectangular body short circuit anchor (7) that is made with magnet is arranged between each wellbore heater, this short circuit anchor and oil pipe (4), sleeve pipe (3) constitutes magnetic loop together, in the middle of the oil pipe outside of oil reservoir position also is with the coil (8) of an annular wellbore heater (8) in heater a temperature pick up (9) is installed, it is connected with floor panel by cable.
2. electromagnetic heater according to claim 1; It is characterized in that the coil of described wellbore heater (6) need lead to the electric current of 40A--60A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97249888 CN2331759Y (en) | 1997-11-25 | 1997-11-25 | Oil well electromagnet heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97249888 CN2331759Y (en) | 1997-11-25 | 1997-11-25 | Oil well electromagnet heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2331759Y true CN2331759Y (en) | 1999-08-04 |
Family
ID=33956669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97249888 Expired - Fee Related CN2331759Y (en) | 1997-11-25 | 1997-11-25 | Oil well electromagnet heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2331759Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996097A (en) * | 2012-11-07 | 2013-03-27 | 中国石油大学(华东) | Three-phase continuous pitshaft heat tracing device for electric pump well |
| CN105089559A (en) * | 2015-07-30 | 2015-11-25 | 中国石油天然气股份有限公司 | An automatic wax removal device for oil wells |
| CN106014338A (en) * | 2016-07-13 | 2016-10-12 | 朱长林 | Oil well shaft power generation and electromagnetic viscosity-reducing wax-prevention heating system |
| CN106837278A (en) * | 2017-03-31 | 2017-06-13 | 邓晓亮 | The method of electromagnetic wave underground steam generating means and its manufacture superheated steam |
| WO2021260455A1 (en) * | 2020-06-23 | 2021-12-30 | Joslyn Energy Development Incorporated | Extraction from a formation with induction heating |
| 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 |
| WO2024180532A1 (en) * | 2023-03-01 | 2024-09-06 | Pt. Audemars Indonesia | Method for diluting viscous oil flows in wellbore and distribution pipe using electricity sources |
-
1997
- 1997-11-25 CN CN 97249888 patent/CN2331759Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996097A (en) * | 2012-11-07 | 2013-03-27 | 中国石油大学(华东) | Three-phase continuous pitshaft heat tracing device for electric pump well |
| CN105089559A (en) * | 2015-07-30 | 2015-11-25 | 中国石油天然气股份有限公司 | An automatic wax removal device for oil wells |
| CN105089559B (en) * | 2015-07-30 | 2018-02-02 | 中国石油天然气股份有限公司 | An automatic wax removal device for oil wells |
| CN106014338A (en) * | 2016-07-13 | 2016-10-12 | 朱长林 | Oil well shaft power generation and electromagnetic viscosity-reducing wax-prevention heating system |
| CN106014338B (en) * | 2016-07-13 | 2018-05-29 | 朱长林 | A kind of well wellbore power generation, electromagnetism adhesion reducing and wax preventing heating system |
| CN106837278A (en) * | 2017-03-31 | 2017-06-13 | 邓晓亮 | The method of electromagnetic wave underground steam generating means and its manufacture superheated steam |
| CN106837278B (en) * | 2017-03-31 | 2023-10-13 | 邓晓亮 | Electromagnetic wave underground steam generating device and method for manufacturing superheated steam by using same |
| WO2021260455A1 (en) * | 2020-06-23 | 2021-12-30 | Joslyn Energy Development Incorporated | Extraction from a formation with induction heating |
| US12037882B2 (en) | 2020-06-23 | 2024-07-16 | Joslyn Energy Development Incorporated | Extraction from a formation with induction heating |
| 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 |
| WO2024180532A1 (en) * | 2023-03-01 | 2024-09-06 | Pt. Audemars Indonesia | Method for diluting viscous oil flows in wellbore and distribution pipe using electricity sources |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: HUAFU ELECTRICAL EQUIPMENT CO., LTD., PANJIN TO: LENIN S HIGH-TECH OIL-HWACO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Lenin Huafu petroleum high tech Limited by Share Ltd Patentee before: Huafu Electrical Equipment Co., Ltd., Panjin |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |