CN201292830Y - Gusher and electric pump well sucker rod electric heater unit - Google Patents
Gusher and electric pump well sucker rod electric heater unit Download PDFInfo
- Publication number
- CN201292830Y CN201292830Y CNU2008201238110U CN200820123811U CN201292830Y CN 201292830 Y CN201292830 Y CN 201292830Y CN U2008201238110 U CNU2008201238110 U CN U2008201238110U CN 200820123811 U CN200820123811 U CN 200820123811U CN 201292830 Y CN201292830 Y CN 201292830Y
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- flange
- oil
- fixedly connected
- oil pipe
- electric pump
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Abstract
The utility model relates to an oil-pumping rod electric heating device of a flowing well and an electric pump well, which aims at overcoming the defects of serious wax deposition in the mineshaft of the flowing well, high crude oil viscosity of the low-emission electric pump well and difficult mining in the prior art. In the utility model, a suspension flange is positioned above an oil pipe valve and fixedly connected with the oil pipe valve, the upper end of a hollow oil-pumping rod is fixedly connected with the suspension flange, and the hollow oil-pumping rod passes through a small cross joint, a main valve, a big cross joint and a bottom flange and is positioned in an oil pipe; the lower end of a connecting flange is fixedly connected with a paraffin-removing valve, and the upper end of the connecting flange is fixedly connected with a cable sealing device; one end of a heating cable is connected with a control cabinet, and the other end of the heating cable is connected with a terminator; and one end of the heating cable connected with the terminator passes through the cable sealing device and the connecting flange, enters into the hollow oil-pumping rod and closely contacts with the terminator by a copper plug. The utility model has the advantages of achieving the entire heating to crude oil in the oil pipe, improving the temperature of the crude oil, reducing the crude oil viscosity and preventing the wax deposition in the oil pipe.
Description
Affiliated technical field
The utility model relates to a kind of sucker rod electric heater unit, especially relates to a kind of flowing well, electric pump well sucker rod electric heater unit.
Background technology
Flowing well recovers the oil when being oil reservoir energy abundance, relies on the energy of oil reservoir own crude oil to be given rise to the mining type on ground fully.Because some regional oil well paraffinications are serious, flowing well mainly adopts the mechanical paraffin removal method, comprises mechanical paraffin cutting equipment and paraffin removal unit, moves up and down by paraffin scraper and carries out paraffin cutting, liquid flow takes the wax that scrapes to ground in the oil pipe, reaches the purpose of removing the long-pending wax of oil pipe.The flowing well that wax deposition is serious, period of removing the wax are very short, consume great amount of manpower and material resources, if wax removal is untimely, easily paraffin blockage influences oil well production.The electric pump well that discharge capacity is less, wellhead temperature are very low, and viscosity of crude height in the pit shaft, wax deposition are serious; In addition, at a large amount of offshore platforms that use electric motor drive oil pump system, the oil temperature when produce winter is low, and crude oil is thicker, causes electric pump lifting difficulty, causes oil well output to descend even stopping production, so the crude oil in the float amount electric pump well pit shaft also needs the heating exploitation.
The utility model content
Serious in order to overcome in the existing flowing well pit shaft wax deposition, adopt the mechanical paraffin removal mode to be difficult to satisfy the exploitation needs, Crude viscosity height under the float amount electric pump well low temperature, the deficiency of difficult exploitation, the utility model provides a kind of flowing well, electric pump well sucker rod electric heater unit.This flowing well, electric pump well sucker rod electric heater unit can improve temperature in wellbore, effectively wax removal, viscosity reduction.
The technical scheme that its technical problem that solves the utility model adopts is: flowing well, electric pump well sucker rod electric heater unit, comprise electrical control cubicles, heating cable, the end flange of above ground portion, big four, total valve, little four-way are fixedly connected sequentially from the bottom to top, the oil pipe of down-hole is installed in the sleeve pipe, hangs the top that flange is positioned at little four-way and fixedlys connected with little four-way; The upper end of hollow rod with hang flange and fixedly connected, hollow rod passes little four-way, total valve, big four, end flange and is positioned at oil pipe; Suspension flange, wax removal valve, adpting flange, cable sealing device are fixedly connected sequentially from the bottom to top; One end of heating cable is connected with switch board, and the other end passes cable sealing device, adpting flange enters in the hollow rod, is connected with terminal organ in the hollow rod of down-hole by copper plug.In the seal box upper end endoporus of cable sealing device sealed packing is installed, the sealed packing upper end is equipped with gland, in the annular groove of gland upper end sebific duct is installed; The pressure cap endoporus cooperates with the cylindrical of sebific duct upper end, fixedlys connected with seal box in the lower end of pressure cap.
The beneficial effects of the utility model are, have realized the whole process heating to crude oil in the oil pipe, improve crude oil temperature, reduce viscosity of crude, prevent wax deposition in the oil pipe.
Description of drawings
Fig. 1 is the utility model flowing well, electric pump well sucker rod electric heater unit above ground portion schematic diagram.
Fig. 2 is the utility model flowing well, electric pump well sucker rod electric heater unit under ground portion schematic diagram.
Fig. 3 is the utility model cable sealing device structural representation.
Among the figure: 1. switch board, 2. heating cable, 3. cable sealing device, 4. adpting flange, 5. suspension flange, 6. little four-way, 7. total valve, 8. wax removal valve, 9. big four, 10. end flange, 11. hollow rods, 12. oil pipe, 13. terminal organs, 14. sleeve pipes, 21. seal box, 22. packing rings, 23. sealed packings, 24. gland, 25. pressure caps, 26. sebific ducts.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
The utility model flowing well, electric pump well sucker rod electric heater unit, the end flange 10 of above ground portion, big four 9, total valve 7, little four-way 6, suspension flange 5, wax removal valve 8, adpting flange 4, cable sealing device 3 are fixedly connected sequentially from the bottom to top; The sleeve pipe 14 of down-hole part, oil pipe 12, hollow rod 11 are installed from outside to inside.
The upper end of hollow rod 11 with hang flange 5 and fixedly connected, hollow rod 11 passes little four-way 6, total valve 7, big four 9, end flange 11 and enters in the oil pipe 12.One end of heating cable 2 is connected with switch board 1, the other end passes cable sealing device 3, adpting flange 4 enters in the hollow rod 11, closely contact by the terminal organ 13 of copper plug with hollow rod 11 bottoms, form the loop with the body of rod of hollow rod 11, pass to industrial-frequency alternating current, the kelvin effect principle produces heat energy in utilizing on hollow rod 11 bar walls, and crude oil in the oil pipe is carried out the whole process heating.
In the seal box 21 upper end endoporus of cable sealing device 3 sealed packing 23 is installed, sealed packing 23 upper ends are equipped with gland 24, in the annular groove of gland 24 upper ends sebific duct 26 are installed; The cylindrical of sebific duct 26 is up-small and down-big multidiameter, and pressure cap 25 endoporus cooperate with the cylindrical of sebific duct 26 upper ends, fixedlys connected with seal box 21 in the lower end of pressure cap 25.Between sealed packing 23 and the seal box 21 packing ring 22 is installed; For the ease of operation, can also be at pressure cap 25 external surface mounting knobs.Cable sealing device 3 can play hermetically-sealed cable, prevent to overflow in bar after the oil-feed in the hollow rod 11, pollutes or gas blowout accident.
The utility model can be used as the corollary apparatus of flowing well, electric pump well exploitation, can regularly heat according to the wax deposition cycle paraffin-troubled well, but viscosity reduction well based on crude viscosity is heated continuously, solves high sticking, wax deposition problem effectively.
Use the utility model flowing well, electric pump well sucker rod electric heater unit, can improve crude oil temperature in the oil pipe, reduce viscosity of crude, improve crude oil fluidity, prevent crude oil wax in the oil pipe, thereby exploit " three height " crude oil of high viscosity, the high content of wax, high-solidification point effectively.
Claims (3)
1. a flowing well, electric pump well sucker rod electric heater unit comprise electrical control cubicles, heating cable, and the end flange of above ground portion, big four, total valve, little four-way are fixedly connected sequentially from the bottom to top, and the oil pipe of down-hole is installed in the sleeve pipe, it is characterized in that:
Hanging the top that flange (5) is positioned at little four-way (6) fixedlys connected with little four-way (6); The upper end of hollow rod (11) with hang flange (5) and fixedly connected, hollow rod (11) passes little four-way (6), total valve (7), big four (9), end flange (10) and is positioned at oil pipe (12);
Suspension flange (5), wax removal valve (8), adpting flange (4), cable sealing device (3) are fixedly connected sequentially from the bottom to top; One end of heating cable (2) is connected with switch board (1), and the other end passes cable sealing device (3), adpting flange (4) enters in the hollow rod (11), and the terminal organ (13) interior by copper plug and down-hole hollow rod (11) is connected.
2. flowing well according to claim 1, electric pump well sucker rod electric heater unit, it is characterized in that: in seal box (21) the upper end endoporus of described cable sealing device (3) sealed packing (23) is installed, sealed packing (23) upper end is equipped with gland (24), in the annular groove of gland (24) upper end sebific duct (26) is installed; Pressure cap (25) endoporus cooperates with the cylindrical of sebific duct (26) upper end, fixedlys connected with seal box (21) in the lower end of pressure cap (25).
3. flowing well according to claim 2, electric pump well sucker rod electric heater unit is characterized in that: between described sealed packing (23) and the seal box (21) packing ring (22) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201238110U CN201292830Y (en) | 2008-11-18 | 2008-11-18 | Gusher and electric pump well sucker rod electric heater unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201238110U CN201292830Y (en) | 2008-11-18 | 2008-11-18 | Gusher and electric pump well sucker rod electric heater unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201292830Y true CN201292830Y (en) | 2009-08-19 |
Family
ID=41006306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201238110U Expired - Lifetime CN201292830Y (en) | 2008-11-18 | 2008-11-18 | Gusher and electric pump well sucker rod electric heater unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201292830Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013177A (en) * | 2017-05-10 | 2017-08-04 | 河北华通线缆集团股份有限公司 | A kind of well mouth hanger for heating umbilical |
| CN110761730A (en) * | 2018-07-27 | 2020-02-07 | 谢建勇 | Cable hanging sealing wellhead device for throwing and fishing cable type submersible screw pump cable |
| CN114320231A (en) * | 2020-09-30 | 2022-04-12 | 中国石油天然气股份有限公司 | Method for preventing wax precipitation of production string of gas production well |
-
2008
- 2008-11-18 CN CNU2008201238110U patent/CN201292830Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013177A (en) * | 2017-05-10 | 2017-08-04 | 河北华通线缆集团股份有限公司 | A kind of well mouth hanger for heating umbilical |
| CN107013177B (en) * | 2017-05-10 | 2023-02-24 | 河北华通线缆集团股份有限公司 | Wellhead hanger for heating pipe cable |
| CN110761730A (en) * | 2018-07-27 | 2020-02-07 | 谢建勇 | Cable hanging sealing wellhead device for throwing and fishing cable type submersible screw pump cable |
| CN114320231A (en) * | 2020-09-30 | 2022-04-12 | 中国石油天然气股份有限公司 | Method for preventing wax precipitation of production string of gas production well |
| CN114320231B (en) * | 2020-09-30 | 2024-03-26 | 中国石油天然气股份有限公司 | Method for preventing wax deposition of production pipe column of gas production well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CNPC BOHAI PETROLEUM EQUIPMENT MANUFACTURING CO., Free format text: FORMER OWNER: XINSHIJI MACHINERY MANUFACTURING CO., LTD., DAGANG OIL FIELD GROUP Effective date: 20100903 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 300280 HONGQI ROAD, DAGANG OILFIELD, TIANJIN CITY TO: 300280 CHUANGANG ROAD, DAGANG OILFIELD, DAGANG DISTRICT, TIANJIN CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100903 Address after: 300280 Tianjin City, Grand Port Dagang Oilfield Sichuan Road Patentee after: CNPC Bohai Equipment Manufacturing Co., Ltd. Address before: 300280 Hongqi Road, Dagang Oilfield, Tianjin Patentee before: Xinshiji Machinery Building Co., Ltd., Dagang Oil Field Group |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090819 |