CN2153655Y - Electrothermal pumping unit - Google Patents
Electrothermal pumping unit Download PDFInfo
- Publication number
- CN2153655Y CN2153655Y CN 92232803 CN92232803U CN2153655Y CN 2153655 Y CN2153655 Y CN 2153655Y CN 92232803 CN92232803 CN 92232803 CN 92232803 U CN92232803 U CN 92232803U CN 2153655 Y CN2153655 Y CN 2153655Y
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- CN
- China
- Prior art keywords
- oil
- electric heating
- sucker rod
- rod
- heating type
- 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 discloses the structure of an electric heating type oil pumping machine used for the oil exploitation of an oil field. The electric heating type oil pumping machine used for the oil exploitation of an oil field is characterized in that the oil pumping rod of the electric heating type oil pumping machine used for the oil exploitation of an oil field is a hollow pipe. The oil pumping rod is provided with a female end head and a male end head. A plug with a conducting ring is arranged inside the female end head, and a socket with a conducting ring is arranged inside the male end head. The conducting rings of the female end head and the male end head are connected by a resistance wire inside the hollow pipe. The electric heating type oil pumping machine used for the oil exploitation of an oil field has the advantages that the temperature of a thick oil well can be raised, output is enhanced, the electric heating type oil pumping machine used for the oil exploitation of an oil field is convenient to transport oil, and the electric heating type oil pumping machine used for the oil exploitation of an oil field has simple structure, convenient operation, low failure rate, and safe running. An electric heating oil pumping rod is standardized, and the electric heating oil pumping rod can beoptionally lengthened or shortened.
Description
The utility model belongs to the oil field oil recovery machiner, specifically, relates to a kind of structure of electric heating type pumping unit.
In many oil fields, material such as the content of wax and pitch is more in the crude oil, in oil recovery and oil transportation process, because oily temperature drop is low on the way, wax and pitch in the crude oil are separated out, solidify and be attached on the tubing wall, and oil viscosity increases, make adopt, the speed of oil transportation reduces, the crude oil production rate obviously reduces, even cause oil well and oil transport pipeline to stop up, influence the ordinary production in oil field.At the problems referred to above patent No. is that 88221441.1 Chinese patent discloses a kind of " oil field donwhole heater "; the structure of this device is in a joint down-hole sucker rod of pumping unit; be added with the electric heating wire that shape of threads is twined, electric heating wire adopts triangle to connect, and adds protective casing.Though this device has been alleviated the condensation problem of crude oil, there are faults such as big, the easy generation fusing of surface thermal load simultaneously; Complex structure, heating sucker rod be difficult for to be changed, and heating sucker rod structure uniqueness is difficult for cooperating with existing standard sucker rod or prolongs, subtracts length arbitrarily.
Task of the present utility model provides a kind of electric heating type pumping unit, and its surface thermal load is less, and rate of fault is low, and heating sucker rod is simple in structure, and it is convenient to change; Heating sucker rod is identical with standard sucker rod external structure, can arbitrarily be used.
In order to solve above-mentioned task, the solution that the utility model adopts is: at the common ground installation 1 that comprises, oil well pump 2 under the oil well and the more piece sucker rod 3(that is connected oil well pump and ground installation are comprising a upper end polished rod 4, many intermediate bars 5 and a following termination pump rod 6) in the pumping unit, upper end polished rod 4 in the sucker rod is a hollow tubular, its bottom is a tapped cloudy termination, and there is a diameter to be fixed in the hollow tubular less than the cylindrical plug 7 of going up of hollow tubular internal diameter, last plug is embedded with three last conductive hoops 8 of being separated by outward, and the power lead-ining line 9 that three mutually insulateds are arranged is introduced hollow tubular by the upper end of upper end polished rod and is connected with last conductive hoop respectively; Intermediate bar 5 in the sucker rod is the hollow tubular heating sucker rod, the cannon plug 10 of a diameter less than the hollow tubular internal diameter arranged in its cloudy termination, be embedded with three conductive hoops 11 on the plug, the externally threaded oedoeagus head that has of heating sucker rod is built-in with the ring socket 12 that internal diameter matches with plug or last plug external diameter, the socket inwall is embedded with three alternate interior conductive hoops 13, conductive hoop is connected with a conductive hoop on the plug respectively by a resistance wire 14 in hollow in each, resistance wire is fixing by the insulating frame in the hollow tubular 15, is filled with stuffing 16 in the hollow tubular; The top of the following termination pump rod in the sucker rod is a hollow oedoeagus head 17, be connected to contact base 18 in it, contact base has an outer tube 19, the embedded insulating cylinder 20 of outer tube, the conductor that the socket external diameter cooperates on the embedded internal diameter of insulating cylinder and the heating sucker rod contact tube 21, and the bottom of following termination pump rod is a cloudy termination 22 that can be connected with the pump rod 23 of pumping.
Owing to adopted said structure, major advantage of the present utility model is: except that the advantage with general pumping unit, the thick oil well temperature is raise, improve output, be convenient to oil transportation; Electric heater is attached in the sucker rod, and is simple in structure, easy to operate, and rate of fault is low, safe and reliable to operation, electric heating rod standardization, spreading or tear weak point open arbitrarily.
The drawing of the utility model accompanying drawing is described as follows:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural drawing of the upper end polished rod of sucker rod;
Fig. 3 is the structural drawing of the intermediate bar of sucker rod;
Fig. 4 is the structural drawing of the following termination pump rod of sucker rod;
Fig. 5 is the structural drawing of the contact base in the following termination pump rod;
Fig. 6 is the circuit diagram of whole sucker rod.
Below in conjunction with drawings and Examples the utility model is further described: as shown in Figure 3, be serially connected with thermal expansion expansion device 24 in the resistance wire of heating sucker rod in an embodiment, this device is a metal tube that seam is axially arranged, and inserts resistance wire in the pipe.
In an embodiment, the outlet port of pumping unit is equipped with temperature transducer 25(and is seen Fig. 1), the controlled end of the controller of the output termination control heating sucker rod power supply of temperature transducer.
In an embodiment, two sucker rod joints are added with " O " shape seal ring, and the sealing circle places the cloudy termination of sucker rod inwall near the port.Stuffing in the intermediate bar can adopt magnesium oxide; Resistance wire adopts mild steel wire.
Claims (5)
1, a kind of electric heating type pumping unit, it comprises the oil well pump under ground installation and the oil well, oil well pump is connected by the more piece sucker rod with ground installation, sucker rod comprises a upper end polished rod again, many intermediate bars and a following termination pump rod, it is characterized in that: above-mentioned upper end polished rod is a hollow tubular, its bottom is a tapped cloudy termination, and there is a diameter to be fixed in the hollow tubular less than the cylindrical plug of going up of hollow tubular internal diameter, last plug is embedded with three last conductive hoops of being separated by outward, and the power lead-ining line that three mutually insulateds are arranged is introduced hollow tubular by the upper end of upper end polished rod and is connected with last conductive hoop respectively; Above-mentioned intermediate bar is hollow heating sucker rod, the cannon plug of a diameter less than the hollow tubular internal diameter arranged in its cloudy termination, be embedded with three conductive hoops on the plug, its the externally threaded oedoeagus head that has is built-in with the ring socket that internal diameter matches with plug or last plug external diameter, the socket inwall is embedded with three interior conductive hoops of being separated by, in each conductive hoop by resistance wire in the hollow tubular be connected with a conductive hoop on the plug respectively, resistance wire is fixed by the insulating frame in the hollow tubular, is filled with stuffing in the hollow tubular; One hollow oedoeagus head is arranged at the above-mentioned top of termination pump rod down, be connected to contact base in it, contact base has an outer tube, the embedded insulating cylinder of outer tube, the embedded internal diameter of insulating cylinder contacts tube with the conductor that the socket external diameter of heating sucker rod cooperates, and the bottom of following termination pump rod is a cloudy termination that can be connected with the oil pumping pump rod.
2, according to the described electric heating type pumping unit of claim 1, it is characterized in that: be serially connected with the thermal expansion expansion device in the resistance wire of heating sucker rod, this device is a metal tube that seam is axially arranged, and inserts resistance wire in the pipe.
3, according to claim 1 or 2 described electric heating type pumping units, it is characterized in that: temperature transducer is equipped with in the outlet port at pumping unit, the controlled end of the controller of the output termination control heating sucker rod power supply of temperature transducer.
4, according to claim 1 or 2 described electric heating type pumping units, it is characterized in that: be added with " O " shape seal ring two sucker rod joints, the sealing circle places the cloudy termination of sucker rod inwall near the port.
5, according to the described electric heating type pumping unit of claim 3, it is characterized in that: be added with " O " shape seal ring two sucker rod joints, the sealing circle places the cloudy termination of sucker rod inwall near the port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92232803 CN2153655Y (en) | 1992-09-12 | 1992-09-12 | Electrothermal pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92232803 CN2153655Y (en) | 1992-09-12 | 1992-09-12 | Electrothermal pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2153655Y true CN2153655Y (en) | 1994-01-19 |
Family
ID=33775272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92232803 Expired - Fee Related CN2153655Y (en) | 1992-09-12 | 1992-09-12 | Electrothermal pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2153655Y (en) |
-
1992
- 1992-09-12 CN CN 92232803 patent/CN2153655Y/en not_active Expired - Fee Related
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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 |