CN2763495Y - Low frequency cable free heater for sucker rod - Google Patents
Low frequency cable free heater for sucker rod Download PDFInfo
- Publication number
- CN2763495Y CN2763495Y CN 200520089213 CN200520089213U CN2763495Y CN 2763495 Y CN2763495 Y CN 2763495Y CN 200520089213 CN200520089213 CN 200520089213 CN 200520089213 U CN200520089213 U CN 200520089213U CN 2763495 Y CN2763495 Y CN 2763495Y
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- CN
- China
- Prior art keywords
- sucker rod
- oil
- insulating
- rod
- cable
- 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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Abstract
The utility model relates to a low-frequency cable free heater for a sucker rod, which belongs to a heater for a sucker rod. The low-frequency cable free electric heating device for a sucker rod is composed of a control cabinet, a cable, a hollow polished rod, an insulating sucker rod, centralizers, an oil conduit flow guiding instrument, a current compensator, an electric potential controller and insulating oil conduits. The utility model is characterized in that one end of the cable is connected with the control cabinet, the other end is connected with a wire connecting terminal of the insulating sucker rod, the insulating sucker rod is arranged below the hollow polished rod, the external wall of each of the oil conduits is provided the centralizer, the oil conduit flow guiding instrument is arranged on a solid sucker rod which is arranged on the lower end of the insulating sucker rod, the current compensating instrument is connected to the lower end of the electric potential controller and the insulating oil conduits are arranged on an oil string. The utility model has the advantages and effects that heat utilization rate can reach 55% to 60%, electric energy can be saved, the solid sucker rods generates heat to prevent the paraffin deposit of the oil conduits, and the utility model is suitable for a highly waxy well, a hypercoagulative oil well, a conventional thick oil well and a highly thick oil well.
Description
Affiliated technical field
The utility model belongs to the sucker rod heater, and particularly a kind of low frequency does not have the cable sucker rod electric heater unit.
Background technology
At present, the heating crude oil in the pit shaft is given in domestic each oil field, and using maximum is that hollow stem hot line technology and electric oil plumber plant, hollow stem hot line technology, cable work long hours at high temperature easily aging, the waste electric energy, work accident rate height, electric oil plumber skill, the heat energy utilization rate has only about 33%, and temperature is low, the sucker rod wax deposition is serious, owing to the sectional area of oil pipe is big, reach to add thermal effect, required electric current is big.
Summary of the invention
The utility model is in order to overcome the problems referred to above, provide a kind of low frequency not have the cable sucker rod electric heater unit, this low frequency does not have the cable sucker rod electric heater unit, being heating cable in the cancellation hollow rod, is the heating main body with the solid sucker rod, is the loop with the oil well casing, rely on the kelvin effect principle, with the solid sucker rod heating, realize that thermal loss is little to the heating of crude oil around the body of rod, heat energy utilization rate height, ' alleviated the load of oil pumper, saves energy is because the sucker rod heating, overcome the problem of sucker rod wax deposition, directly become the single-phase low-frequency ac source by the three-phase alternating current cable, three-phase equilibrium, power factor improves.
The technical scheme in the invention for solving the technical problem is: a kind of low frequency does not have the cable sucker rod electric heater unit, by switch board, cable, hollow polished rod, the insulation sucker rod, centralizer, the oil pipe guide instrument, current compensator, potentiometric controller, the insulation oil pipe is formed, its special character is: an end and the switch board of cable join, wiring terminal in the other end and the insulation sucker rod joins, the insulation sucker rod is in the lower end of hollow polished rod, the outer wall of every oil pipe is equipped with centralizer, the oil pipe guide instrument is on the solid sucker rod of insulation sucker rod lower end, current compensator is connected on the lower end of potentiometric controller, and the insulation oil pipe is contained on the tubing string.
The utility model has the advantages of and be: directly become the single-phase low-frequency ac source by the three-phase alternating current cable, with solid sucker rod as main heater, thermal loss is little, and the heat energy utilization rate can reach 55%-60%, long service life, alleviate oil pumper load, saves energy, the solid sucker rod heating prevents tubing wax, improves the rheological characteristic of crude oil, heating current is lower than the electrical heating oil pipe, is applicable to high wax containing well, high-solidifiability oil well, conventional viscous crude and high viscosity heavy oil well.
Description of drawings
Accompanying drawing is a schematic diagram of the present utility model.
Among the figure: (1) switch board, (2) cable, (3) hollow polished rod, (4) insulation sucker rod, (5) centralizer, (6) oil pipe guide instrument, (7) current compensator, (8) potentiometric controller, (9) insulation oil pipe.
The specific embodiment:
After switch board in the accompanying drawing (1) is welded into iron plate, 380V transformer, control panel and operation panel are contained in the switch board (1), insulation sucker rod (4) is at high temperature suppressed with the high strength insulating resin and the glass fiber of the U.S., centralizer (5) is suppressed with the insulation temperature resistant fiber, oil pipe guide instrument (6) welding fabrication, current compensator (7) is made with metalwork, potentiometric controller (8) is made tubular with high temperature insulating material, insulation oil pipe (9) forms with high isolator and stamped metal, and above this instrument is not gone in the well during operation at the scene.
Claims (1)
1, a kind of low frequency does not have the cable sucker rod electric heater unit, by switch board, cable, hollow polished rod, the insulation sucker rod, centralizer, the oil pipe guide instrument, current compensator, potentiometric controller, the insulation oil pipe is formed, it is characterized in that: an end and the switch board of cable join, wiring terminal in the other end and the insulation sucker rod joins, the insulation sucker rod is in the lower end of hollow polished rod, the outer wall of every oil pipe is equipped with centralizer, the oil pipe guide instrument is on the solid sucker rod of insulation sucker rod lower end, current compensator is connected on the lower end of potentiometric controller, and the insulation oil pipe is contained on the tubing string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520089213 CN2763495Y (en) | 2005-02-02 | 2005-02-02 | Low frequency cable free heater for sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520089213 CN2763495Y (en) | 2005-02-02 | 2005-02-02 | Low frequency cable free heater for sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2763495Y true CN2763495Y (en) | 2006-03-08 |
Family
ID=36141041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520089213 Expired - Fee Related CN2763495Y (en) | 2005-02-02 | 2005-02-02 | Low frequency cable free heater for sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2763495Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178913A (en) * | 2015-08-05 | 2015-12-23 | 李宾飞 | Natural gas power generation electric heating wax removing and preventing device based on skin effect and application thereof |
| CN109267968A (en) * | 2018-10-10 | 2019-01-25 | 西安奥德石油工程技术有限责任公司 | Electric heating apparatus of hollow sucker rod and oil production equipment |
| CN110056329A (en) * | 2019-05-12 | 2019-07-26 | 东北石油大学 | A kind of flow-disturbing paraffin cutting screw device for rod pumped well |
-
2005
- 2005-02-02 CN CN 200520089213 patent/CN2763495Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178913A (en) * | 2015-08-05 | 2015-12-23 | 李宾飞 | Natural gas power generation electric heating wax removing and preventing device based on skin effect and application thereof |
| CN109267968A (en) * | 2018-10-10 | 2019-01-25 | 西安奥德石油工程技术有限责任公司 | Electric heating apparatus of hollow sucker rod and oil production equipment |
| CN110056329A (en) * | 2019-05-12 | 2019-07-26 | 东北石油大学 | A kind of flow-disturbing paraffin cutting screw device for rod pumped well |
| CN110056329B (en) * | 2019-05-12 | 2021-02-26 | 东北石油大学 | Turbulent flow wax scraping screw device for sucker-rod pump well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |