CN2123601U - Adjoint heat device of a.c. electric heating sucker rod - Google Patents
Adjoint heat device of a.c. electric heating sucker rod Download PDFInfo
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- CN2123601U CN2123601U CN 92216143 CN92216143U CN2123601U CN 2123601 U CN2123601 U CN 2123601U CN 92216143 CN92216143 CN 92216143 CN 92216143 U CN92216143 U CN 92216143U CN 2123601 U CN2123601 U CN 2123601U
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- heating
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Abstract
The utility model relates to an adjoint heat device of an alternating current electric heating sucker rod, which is used for heating an oil pumping well cylinder in oilfields, particularly a thick oil oilfield or a high congealed oilfield. The utility model is composed of a power supply part on the ground and a heating part under the well; a heating cable 8 under the well and an electric heating head 12 at the lower end of the heating cable 8 under the well are respectively arranged in a rod post composed of a hollow shaft oil rod 9 and a short joint 10 of a sucker rod, and an electric conducting substance 11 is filled between the inner wall of the short joint 10 and the electric heating head 12. When the power is switched on, the part under the well forms a loop circuit, and the well cylinder is heated. The utility model can effectively reduce viscosity or clear paraffin control, thereby, the utility model becomes an ideal tool used for extracting in thick oil wells and high congealed oil wells.
Description
The utility model relates to a kind of particularly AC Electric Heater sucker rod companion thermic devices of viscous crude or hypercoagulation oilfield pumpingh well pit shaft heating of oil field that is used for.
Viscous crude or high-solidifiability oil well viscosity of crude or freezing point height must adopt variety of way to pit shaft heating or companion's heat during oil well production.Once heat can not meet the demands, oil well just can not ordinary production.At present, for viscous crude, high coagulate the oil exploitation, extensively adopt technologies such as steam soak, hot water or Circulation and Hot Oil Spray, but these oil production technology investments are bigger, cost for oil production is higher, the production management difficulty, and environment had pollution.The scene was once tried out a kind of direct current sucker rod and was accompanied thermic devices as oil well in recent years, because this kind electric heating rod electrical leakage quantity is big, to the oil well seriously corroded, in addition, itself power attenuation is big, and the efficiency of heating surface is low, can not guarantee the oil well ordinary production, so fail to apply.
Task of the present utility model provides a kind of AC Electric Heater sucker rod companion thermic devices, this kind device can overcome the prior art weak point, heating power is big, the efficient height, can guarantee that oil well obtains enough heats, play the effect that reduces viscosity of crude or prevent oil pipe, sucker rod wax deposition, thereby guarantee the oil well ordinary production.
The utility model is to realize like this.It comprises that ground power supply part and down-hole accompany hot part.
Fig. 1 is a general structure schematic diagram of the present utility model.
Fig. 2 is down-hole heating part structural representation (being the detail drawing at A position among Fig. 1)
Below in conjunction with accompanying drawing enforcement of the present utility model is described further.
In the utility model surface power supply part, transformer 1 can adopt the DJ-130/6 type, is used for higher supply voltage (for example 6KV) is become required heating voltage (for example 400V), and its numerical value depends on heat penetration and heating power; Electric supply installation 2 adopts the DK-1 type, except being the oil well required voltage with voltage-regulation, can also play temperature control and electric power system protection; Input cable 3, output cable 4 models are VV
29, specification is 2 * 70mm
2, stube cable 6 general employing models are YC-2 * 70mm
2Softer Plastic-sheathed Cable; Polished rod joint 7 is a threeway, the same sucker rod of material; In the heating part of down-hole, it is 25mm that heating cable 8 adopts specification
2And with the reinforced tailor-made cable of 2.5 * 3 steel wires, there is the joint of band pin thread the lower end, and its length is determined according to the oil well predetermined heat degree of depth; Hollow rod 9 materials are No. 45 carbon steels or other model alloy steels, and specification is generally φ 34, wall thickness 6mm; Conductive materials 11 can adopt DG
1The type conductive paste; Electrical heating 12 is a wall thickness 2mm, φ 14 copper tubes, is full of lead in it, and shut the lower end, and the upper end links to each other with the threaded joint in heating cable 8 lower ends by screw thread.
Wherein, the ground power supply part is made up of transformer 1, electric supply installation 2, input cable 3, output cable 4, junction box 5, stube cable 6, polished rod pipe nipple 7 and earthing pole 13; Down-hole companion heat part is made up of heating cable 8, hollow rod 9, sucker rod substitute 10, conductive materials 11 and electrical heating 12.Electric supply installation 2 one ends of above ground portion are connected with transformer 1 by input cable 3, and the other end places on the oil pumper walking beam by output cable 4, junction box 5(), stube cable 6, polished rod pipe nipple 7 link to each other with the heating cable 8 of down-hole part; Heating cable 8 places in the rod string that is made of hollow rod 9, an electrical heating that its lower end connects 12 places in the sucker rod substitute 10 that links to each other with hollow-rod string bottom (being in the predetermined heat degree of depth), is filled with conductive materials 11 between hollow rod pipe nipple 10 inwalls and the electrical heating 12; Electric supply installation 2 cables 4 are by earthing pole 13 ground connection.After the power supply regulation device was connected power supply, heating cable 8 just constituted the loop with hollow rod 9, and whole companion's thermic devices can obtain the heating power of 0-200w/m, and pit shaft is heated.Wherein, hollow-rod string can provide 3/4 heat, and heating cable then provides 1/4 heat, thereby plays wax removal, de-plugging, viscosity reduction effect, guarantees that oil well normally exploits.Because the kelvin effect effect of alternating current, only the inner surface at hollow-rod string has electric current, and its external surface does not then have voltage and current (having only faint drain voltage and leakage current), so it is safe and reliable, and oil well and underground equipment is not had corrosiveness.
The utility model heating power is big, and efficiency of heating surface height is suitable for carrying out viscosity reduction or clear wax control at viscous crude that adopts hollow rod or high-solidifiability oil well.This kind apparatus structure is simple, and construction, easy to use, safe and reliable can become the ideal tools of viscous crude, high-solidifiability oil well exploitation.
Claims (1)
1, a kind of particularly AC Electric Heater sucker rod companion thermic devices of viscous crude or high-solidifiability oil well heating exploitation of oil well that is used for, constitute by surface power supply part and down-hole companion's heat part, it is characterized in that: electric supply installation 2 one ends of above ground portion are connected with transformer 1 by input cable 3, and the other end links to each other with the heating cable 8 of down-hole part by output cable 4, junction box 5, stube cable 6, polished rod pipe nipple 7; Heating cable 8 places in the rod string that is made of hollow rod 9, an electrical heating that its lower end connects 12 places in the hollow rod pipe nipple 10 that links to each other with the rod string bottom, is filled with conductive materials 11 between hollow rod pipe nipple 10 inwalls and the electronic thermo-head 12; Electric supply installation 2, output cable 4 are by earthing pole 13 ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92216143 CN2123601U (en) | 1992-06-08 | 1992-06-08 | Adjoint heat device of a.c. electric heating sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92216143 CN2123601U (en) | 1992-06-08 | 1992-06-08 | Adjoint heat device of a.c. electric heating sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2123601U true CN2123601U (en) | 1992-12-02 |
Family
ID=4960426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92216143 Granted CN2123601U (en) | 1992-06-08 | 1992-06-08 | Adjoint heat device of a.c. electric heating sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2123601U (en) |
Cited By (3)
| 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 |
| CN104481510A (en) * | 2014-12-10 | 2015-04-01 | 马瑞程 | Method for determining setting depth of heating cable passing hollow sucker rod |
| 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 |
-
1992
- 1992-06-08 CN CN 92216143 patent/CN2123601U/en active Granted
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 |
| CN104481510A (en) * | 2014-12-10 | 2015-04-01 | 马瑞程 | Method for determining setting depth of heating cable passing hollow sucker rod |
| CN104481510B (en) * | 2014-12-10 | 2017-09-29 | 马瑞程 | A kind of method for determining heating cable for hollow oil-pumping rod depth of setting |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |