CN2150324Y - Integral cable AC electric-heating sucker rod - Google Patents
Integral cable AC electric-heating sucker rod Download PDFInfo
- Publication number
- CN2150324Y CN2150324Y CN 93211068 CN93211068U CN2150324Y CN 2150324 Y CN2150324 Y CN 2150324Y CN 93211068 CN93211068 CN 93211068 CN 93211068 U CN93211068 U CN 93211068U CN 2150324 Y CN2150324 Y CN 2150324Y
- Authority
- CN
- China
- Prior art keywords
- cable
- sucker rod
- heating sucker
- alternating current
- cone
- 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 provides an integral cable AC electric-heating sucker rod, which is composed of a ground power source and a well barrel heating part. A cable, a sensor wire are horizontally led out through the inner hole of the suspension connecting device; a loop cable connected to the outer surface of the suspension connecting device or connected to the inner cavity, the cable, the sensor wire and the loop cable are protected by a rubber sleeve and a tapered rubber sleeve. The utility model can effectively heat crude oil in a well, the fluidity of the crude oil is improved, which is an ideal tool used for exploiting the thick oil, the high viscosity oil, the high coagulated oil, and the high wax-containing oil.
Description
The novel pit shaft heater that relates to a kind of oilfield pumping well of this use is particularly to viscous crude, the high whole cable alternating current heating sucker rod device that coagulates oil, high-viscosity oil, the heating of high waxy oil well shaft.
To the exploitation of " three height " viscous crude, adopt strong magnetic paraffin control at present, force to inject chemical agent and adopt technologies such as steam, hot water, Circulation and Hot Oil Spray to reach viscosity reduction, dewaxing, improve crude oil fluidity, reach the purpose of normal crude oil extraction to the oil well bottom.But these oil recovery measures investment is big, the cost for oil production height, and the production management difficulty, and environment had certain pollution.Also once tried out direct current heating sucker rod in recent years as the well wellbore heater,, added that itself power attenuation is big, therefore can not get applying because this kind heating sucker rod electrical leakage quantity is big, dangerous, and has heavy corrosion to the part production facilities.
All there is " three height " oil reservoir block of some in oil fields, ground such as China's triumph, the Liaohe River, huge port, North China, Jiangsu, Xinjiang at present, not can not get good utilization because of there being appropriate production technique.Task of the present utility model is exactly to design a kind of whole cable alternating current heating sucker rod device for the weak point of improving prior art, adopt alternating current, can in guiding principle pipe (bar), form alternating magnetic field, because kelvin effect, forming collection at steel pipe (bar) inwall expands hot, resistance heat, eddy current heat and medium heat, steel tube surface is no current and voltage then, also can not cause corrosion to production facilities.
The utility model is with single phase industrial frequence ac power supply apparatus and cable, sensor, outstanding device, electric light bar, heating sucker rod and the loop terminal bar of connecing, the heating circuit that directly connects to form with screw thread; Cable, sensor are to draw by the outstanding device hole horizontal in it that connects; Return cable is connected to and outstanding connect the device external surface or be connected to outstanding connect device inner chamber and cable, and pickup wire connects device inner chamber level and draws by outstanding together; Cable, pickup wire and return cable are protected with rubber sleeve and cone rubber cover.The form of two O-ring seals on the same face of cylinder is adopted in the bar head of electric light bar, heating sucker rod and box cupling sealing, and the maximum outside diameter of box cupling is φ 50mm.The cone-shaped plug of cable lower end and the material of tapered socket are copper or its alloy; Perhaps external surface is electroplated anticorrosive coat within it.The conduction of cone-shaped plug and tapered socket is connected to conical surface contact and is connected, and the cone-shaped plug front end has the pointed cone leader.When alternating current passes through steel pipe (bar) inner cable, produce strong alternating magnetic field, because kelvin effect, body of rod inner surface at electric light bar and heating sucker rod has the electric current face to form collection skin heat, resistance heat, eddy current heat and medium heat (body of rod external surface does not then have electric current and voltage, has only faint leakage current and drain voltage).With electric light bar and the heating of the heating sucker rod body of rod, improve the temperature of crude oil in the oil well by conduction of heat.
The utility model has the advantages that:
(1) body of rod external surface does not have electric current and voltage, and is safe and reliable, uses alternating current can not cause electrochemical corrosion yet.
(2) cable and pickup wire are threaded onto the electric light bar, in the heating sucker rod chamber, when electric light bar, heating sucker rod pump in well, if downward-sloping drawing is during the cable servo-actuated, easy to wear, draw if be inclined upwardly, rainwater flows into electric light bar, heating sucker rod inner chamber easily, causes short circuit, and the method effect that the utility model takes level to draw is best.
(3) on the same face of cylinder of bar head, adopt two O shape cast formula sealings, can strengthen the sealing performance between bar head and the box cupling greatly.Its sealing load can reach 40MPa.
(4) cone-shaped plug and the conduction of tapered socket are connected to conical surface contact and are connected, and safe and reliable, Operation and maintenance are convenient, and the cone-shaped plug front end has the pointed cone leader, and following cable makes things convenient for, and can protect the conical surface of cone-shaped plug.
| 1 | Polished rod eye | 13 | |
| 2 | The solid hopkinson |
14 | |
| 3 | The outstanding device that connects | 15 | |
| 4 | The electric light bar | 16 | |
| 5 | The |
17 | |
| 6 | The welding four- |
18 | The |
| 7 | |
19 | Return cable |
| 8 | |
20 | The cone rubber cover |
| 9 | |
21 | Rubber sleeve |
| 10 | Become the snapping |
22 | The shape sealing ring |
| 11 | |
23 | Cone-shaped plug |
| 12 | Oil well |
24 | Tapered socket |
Of the present utility model for adopting the single phase industrial frequence power supply and connecing device 3, electric light bar 4, heating sucker rod 7, cable 17 and loop terminal bar 18 by outstanding, connect and compose the loop with screw thread and taper socket joint mode.The secondary cable 14 of electrical control cubicles 16 outputs, one is connected to the outstanding return cable that connects device 3, and another root is threaded onto to hang by cable 17 and connects device 3, in the body of electric light bar 4 heating sucker rods 17, and making the cone-shaped plug 23 of tapered socket in the loop terminal bar 18 24 and cable front end, conical surface contact constitutes closed circuit.Behind input current, in steel pipe (bar), produce strong AC magnetic field.Produce heat,, heat is passed to crude oil in the pit shaft by conduction pattern with the body of rod heating of electric light bar and heating sucker rod.
Claims (7)
1, a kind of whole cable alternating current heating sucker rod device, by the ground power supply part and forms the pit shaft heating part cable, sensor, hang and connect device, electric light bar, heating sucker rod, loop terminal bar, return cable etc. and constitute, it is characterized in that:
(1) cable, pickup wire are drawn by the outstanding device hole horizontal in it that connects;
(2) return cable be connected to outstanding connect the device external surface or be connected to the outstanding device inner chamber that connects connect device inner chamber level and draw by outstanding with cable, pickup wire;
(3) cable, pickup wire and return cable are protected with rubber sleeve and cone rubber cover.
2, whole cable alternating current heating sucker rod device according to claim 1 is characterized in that described electric light bar, and the form of two O-ring seals on the cylinder of same garden is adopted in the bar head of heating sucker rod and box cupling sealing.
3, whole cable alternating current heating sucker rod device according to claim 2, the maximum outside diameter that it is characterized in that described box cupling is ∮ 50mm.
4, whole cable alternating current heating sucker rod device according to claim 1, the material that it is characterized in that the cone-shaped plug of described cable lower end and tapered socket is with copper or copper alloy.
5, whole cable alternating current according to claim 1 heats the sucker rod device, it is characterized in that the cone-shaped plug and the tapered socket of described cable lower end, and external surface is electroplate with anticorrosive coat within it.
6, according to claim 3 and 4 described whole cable alternating current heating sucker rod devices, it is characterized in that described cone-shaped plug and tapered socket, its conduction is connected to conical surface contact and connects.
7, whole cable alternating current heating sucker rod device according to claim 1 is characterized in that described cone-shaped plug front end has the pointed cone leader.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93211068 CN2150324Y (en) | 1993-04-29 | 1993-04-29 | Integral cable AC electric-heating sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93211068 CN2150324Y (en) | 1993-04-29 | 1993-04-29 | Integral cable AC electric-heating sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2150324Y true CN2150324Y (en) | 1993-12-22 |
Family
ID=33792795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93211068 Expired - Fee Related CN2150324Y (en) | 1993-04-29 | 1993-04-29 | Integral cable AC electric-heating sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2150324Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235711B (en) * | 2007-01-31 | 2011-06-01 | 辽宁华孚石油高科技股份有限公司 | Hollow sucker rod electric heater unit |
| CN103899278A (en) * | 2014-03-27 | 2014-07-02 | 营口石油机械制造有限公司 | Electrothermal paraffin removal device of heavy oil well |
| CN107448175A (en) * | 2017-08-23 | 2017-12-08 | 唐伏平 | Pulling cable type submersible screw pump |
| 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 |
-
1993
- 1993-04-29 CN CN 93211068 patent/CN2150324Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235711B (en) * | 2007-01-31 | 2011-06-01 | 辽宁华孚石油高科技股份有限公司 | Hollow sucker rod electric heater unit |
| CN103899278A (en) * | 2014-03-27 | 2014-07-02 | 营口石油机械制造有限公司 | Electrothermal paraffin removal device of heavy oil well |
| CN107448175A (en) * | 2017-08-23 | 2017-12-08 | 唐伏平 | Pulling cable type submersible screw pump |
| 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 |
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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 |