CN2176429Y - Heater of oil well pump - Google Patents
Heater of oil well pump Download PDFInfo
- Publication number
- CN2176429Y CN2176429Y CN 93229488 CN93229488U CN2176429Y CN 2176429 Y CN2176429 Y CN 2176429Y CN 93229488 CN93229488 CN 93229488 CN 93229488 U CN93229488 U CN 93229488U CN 2176429 Y CN2176429 Y CN 2176429Y
- Authority
- CN
- China
- Prior art keywords
- oil
- tubing
- oil pipe
- pump
- pipe
- 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
Links
Images
Landscapes
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a heater of oil well pump which can solve the problem that the adhesive propagation effect is formed near the well bore, which increases the poor fluidity of the viscosity of crude and causes the difficulty of inserting the pump in the mining process and can also provide the well casing with heat trace. It uses a casing tube to serve as a conductor, and the upper parts of the oil tube and the pumping rod adopt the insulating pup joints. A centralizer and an oil casing tube connector are placed in the annular space of the casing tube, which makes the casing tube form a galvanic circle. This heater of oil well pump changes the electric energy into the heat energy by making use of the alternating current skin effect of the casing tube, which eliminates the adhesive propagation effect area under the pump, obtains the viscosity reduction, the heat trace, paraffin removal and paraffin control effect and increases the utilization rate of oil wells and the oil production rate.
Description
The utility model relates to a kind of oil well that solves and forms the viscosity Kelvin effect in recovery process because near the well, causes the mobile difference of viscosity of crude increase to go into pump difficulty ， And and provides heater under the hot oil pump of companion for pit shaft.
At present, in oil extraction process, extensively adopt 400 ℃ full to close steam incoming and outcoming and 90 ℃ of hot water or the exploitation of Circulation and Hot Oil Spray method.This several method oil production technology investment is big, the equipment complexity, and thermal loss is many, and energy utilization rate is low, and environment pollution is serious, production management difficulty, cost for oil production height, deficiency in economic performance.90 ℃ of hot water or Circulation and Hot Oil Spray method can not fundamentally solve crude oil and go into the pump problem, only to pit shaft companion heat, and its complex process, the heat energy utilization rate is low, can't use the oil well that lacks source of the gas.
The purpose of this utility model is for improving the utilization rate and the oil well output of oil well, eliminate near the skin zone that becomes of well, what solve crude oil goes into pump problem and wax deposition Wen Ti And for pit shaft provides the companion heat, reduces cost for oil production and oil recovery working strength of workers and heater under a kind of oil pump of providing.
Heater content Description under the utility model oil pump:
Heater is made up of ground power supply system, sucker rod insulating short section, oil pipe insulating short section, oil pipe firewire binding post, centralizer, downhole oil thimble connector, oil pipe, sleeve pipe and connection cable etc. under the utility model oil pump, it is characterized in that: this device is to utilize sleeve pipe as conductor, adopts insulating short section on oil pipe top and sucker rod top; Annular space placement centralizer and tubing and casing connector at sleeve pipe make tubing and casing form the galvanic circle, utilize the interchange kelvin effect of tubing and casing that electric energy is converted into heat energy; Ground power supply system is made of special transformer and electric control gear two parts; In the oil reservoir position, oil pump place and pit shaft folding wax point adopts the high impedance oil pipe, is by doping or case-carbonizing, external surface is aluminized the back heated oxide and the alumina protective layer or the employing epoxy resin layer insulated tubing that form; Tubing and casing connector and oil pipe adopt welding manner to link together, and tubing and casing connector and sleeve pipe adopt heat expansion material or spring to be fastened together by pressure; The impedance of tubing and casing connector is zero, and its appearance adopts the insulating corrosion sheath of being made by poly-tetrafluoro.
Heater utilizes original casing programme as the heating original paper under the utility model oil pump, adopt the kelvin effect mechanism heating of alternating current, equipment is simple, and is easy to operate, safe and reliable, its heat penetration is big, can directly be heated to the certain zone of oil reservoir and oil reservoir bottom and solve crude oil and go into pump Wen Ti And and prevent crude oil wax deposition in well and oil pump, reduces viscosity of crude and flow resistance, improve pump efficiency, for pit shaft companion heat, play the effect of wax removal wax-proof viscosity reducing simultaneously, improve the utilization rate of oil wells and crude output.
Embodiment:
Fig. 1 is a heater structural representation under the oil pump.
Among the figure: 1 is ground power supply system; 2 is the sucker rod insulating short section; 3 is the oil pipe insulating short section; 4 is the oil pipe firewire binding post; 5 is centralizer; 6 is the downhole oil thimble connector; 7 is oil pipe; 8 is sleeve pipe; 9 is producing fluid level; 10 is well; 11 is connection cable; 12 is production tree; 13 is tubing string; 14 is oil pump.
Ground power supply system 1 is made up of transformer and electrical control cubicles, and the heating power of power supply ， And control whole system is provided for ground circuit.Ground circuit is made up of oil pipe firewire binding post 4, oil pipe 7, sleeve pipe 8, downhole oil thimble connector 6, centralizer 5, oil pipe insulating short section 3, sucker rod insulating short section 2, electric current returns ground control system by oil pipe firewire binding post 4, oil pipe 7, downhole oil thimble connector 6, sleeve pipe 8, make tubing and casing form a complete galvanic circle, utilize the resistance of tubing and casing own, electric energy is converted into heat energy by exchanging kelvin effect mechanism.Adopt sucker rod insulating short section 2 and oil pipe 7 insulation on well head top, preventing that sucker rod from contacting with oil pipe is short-circuited, adopt oil pipe insulating short section 3 and 12 insulation of well head production tree on oil pipe 7 tops, sucker rod insulating short section 2 and oil pipe insulating short section 3 adopt poly-tetrafluoro or glass-reinforced plastic material to make; Downhole oil thimble connector 6 adopts welding manner to be connected with oil pipe 7, and downhole oil thimble connector 6 adopts heat expansion material or spring to be fastened together by pressure with sleeve pipe 8, the hot-spot phenomenon can not take place make whole loop safe and reliable.The impedance of downhole oil thimble connector 6 is zero, and its external surface adopts the jacket insulation of being made by poly-PTFE anticorrosion.Make sleeve pipe 8 form galvanic circles at sleeve pipe 8 annular spaces placement centralizer 5 and downhole oil thimble connector 6.In the oil reservoir position, oil pump place and pit shaft folding wax point can obtain bigger heating power by employing high impedance oil pipe method; accomplish that heating power is adjustable; high impedance oil pipe 7 can be to obtain with doping or oil pipe case-carbonizing method, and heated oxide formed alumina protective layer or adopts the epoxy resin layer insulated tubing after the oil pipe external surface was aluminized.
Claims (1)
1, heater under a kind of oil pump, form by ground power supply system, sucker rod insulating short section, oil pipe insulating short section, oil pipe firewire binding post, centralizer, downhole oil thimble connector, oil pipe, sleeve pipe, connection cable, it is characterized in that: this device utilizes sleeve pipe as conductor, adopts insulating short section on oil pipe top and sucker rod top; Annular space placement centralizer and tubing and casing connector at sleeve pipe make sleeve pipe form the galvanic circle; Ground power supply system is made of special transformer and electric control gear two parts; In the oil reservoir position, oil pump place and pit shaft folding wax point adopts the high impedance oil pipe, is by doping or case-carbonizing, external surface is aluminized back heated oxide and the alumina protective layer that forms or use the epoxy resin layer insulated tubing; Tubing and casing connector and oil pipe adopt weldering to connect the mode tubing and casing connector that links together and are fastened together by pressure with sleeve pipe employing heat expansion material or spring; The impedance of tubing and casing connector is zero, and its external surface adopts the insulating corrosion sheath of being made by poly-tetrafluoro.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93229488 CN2176429Y (en) | 1993-10-19 | 1993-10-19 | Heater of oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93229488 CN2176429Y (en) | 1993-10-19 | 1993-10-19 | Heater of oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2176429Y true CN2176429Y (en) | 1994-09-07 |
Family
ID=33806345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93229488 Expired - Fee Related CN2176429Y (en) | 1993-10-19 | 1993-10-19 | Heater of oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2176429Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291244A (en) * | 2013-06-21 | 2013-09-11 | 沈阳摩根能源装备有限公司 | Method for compensating thermal energy of horizontal well mining heavy oil reservoirs in large power and subsection mode in pit |
| CN104775793A (en) * | 2015-03-16 | 2015-07-15 | 浙江理工大学 | Oil extracting device |
| 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 |
| CN106150392A (en) * | 2016-08-29 | 2016-11-23 | 王国良 | Can conduct electricity transmission torque sucker rod |
| CN112211593A (en) * | 2019-07-10 | 2021-01-12 | 中国石油化工股份有限公司 | Oil well wax removal and prevention system and method containing high-melting-point wax |
-
1993
- 1993-10-19 CN CN 93229488 patent/CN2176429Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291244A (en) * | 2013-06-21 | 2013-09-11 | 沈阳摩根能源装备有限公司 | Method for compensating thermal energy of horizontal well mining heavy oil reservoirs in large power and subsection mode in pit |
| CN104775793A (en) * | 2015-03-16 | 2015-07-15 | 浙江理工大学 | Oil extracting device |
| 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 |
| CN106150392A (en) * | 2016-08-29 | 2016-11-23 | 王国良 | Can conduct electricity transmission torque sucker rod |
| CN112211593A (en) * | 2019-07-10 | 2021-01-12 | 中国石油化工股份有限公司 | Oil well wax removal and prevention system and method containing high-melting-point wax |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103291244A (en) | Method for compensating thermal energy of horizontal well mining heavy oil reservoirs in large power and subsection mode in pit | |
| CN2176429Y (en) | Heater of oil well pump | |
| CN201137486Y (en) | Underground cable-free electromagnetic electric heating film compound heating oil production device | |
| CN1206097A (en) | Geothermal energy extracting method and equipment | |
| CN203978386U (en) | A kind of oil well heat injection nitrogen well washing system | |
| CN101666221A (en) | Oil well geothermal self-energy wax-proofing device | |
| CN210195724U (en) | Oil shale electric heating's tubular column | |
| CN214371027U (en) | Heat exchange sleeve device for efficiently exploiting geothermal resources and geothermal single well system | |
| CN202348231U (en) | Geothermal wellbore insulating system | |
| CN2663653Y (en) | Heating system device under oil-submersible electric pump and well pump | |
| CN201344029Y (en) | Circulating heating system for pumping well | |
| CN2290692Y (en) | Well cable-less frequency-conversion electrical heating oil extracting appts. | |
| CN211314171U (en) | Device for exploiting geothermal resources of hot dry rock | |
| CN200949449Y (en) | Deep-well heater of oil field | |
| CN209115071U (en) | The bearing type wellhead assembly of geothermal well | |
| CN112815557A (en) | Heat exchange sleeve device for efficiently exploiting geothermal resources and geothermal single well system | |
| CN2095278U (en) | Electric heater for oil well | |
| CN1245862A (en) | Hot air-steam mixed thickened oil inflow-out flow recovery method | |
| CN2165264Y (en) | Hollow screw oil pump | |
| CN2344539Y (en) | Electric heating electromagnetic eddy oil extraction device | |
| CN210685952U (en) | Double-frequency heating oil production system | |
| CN2171673Y (en) | Automatic anti-blockage system without cable for oil extraction | |
| CN2473457Y (en) | Steam overpump heating oil production steam distributor | |
| CN2203354Y (en) | Well electric heater | |
| CN217841551U (en) | Heating nipple for heavy oil well |
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 |