CN2096635U - High-congeal oil heating rod - Google Patents
High-congeal oil heating rod Download PDFInfo
- Publication number
- CN2096635U CN2096635U CN 91219790 CN91219790U CN2096635U CN 2096635 U CN2096635 U CN 2096635U CN 91219790 CN91219790 CN 91219790 CN 91219790 U CN91219790 U CN 91219790U CN 2096635 U CN2096635 U CN 2096635U
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- China
- Prior art keywords
- utility
- hollow stem
- model
- oil
- congeal
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- 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 - Lifetime
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Abstract
The utility model discloses a high-congeal oil heating rod, which is a device used for extracting the petroleum by utilizing the electrical heat energy. The utility model mainly solves the problems that the high-congeal oil can be powered on to increase the oil temperature and reduce the viscosity degree in high-congeal oil extraction process and the power utilization security in working process can be guaranteed to prevent the oil well fire accident. The utility model has the advantages of long service life, convenient maintenance. The utility model adopts two or three hot cables which are arranged in the hollow sucker rod; the insulation layers of cathode and anode electric joints are formed by tetrafluoride materials in a compression casting way. The utility model adopts a design that a sealing groove and a sealing ring are arranged on the connecting position of the hollow rod. The utility model can safely and electrically heat without changing the original extracting facilities, and can be used for petroleum extraction industry.
Description
The utility model relate to a kind of from deep-well the equipment of recover petroleum, particularly relate to a kind of quarrying apparatus that uses heat energy.
High thickened oil recovery with fixed attention is the problem that the oil exploitation industry is inquired into for many years always.The application number that Patent Office of the People's Republic of China announces is that the heat extractor for petroleum of 89217423.4 patent applications is a kind of electric energy heating that utilize, with the hollow rod tube wall is the hot extractor of electric power loop, because hollow rod does not have the insulating protection measure, make hollow rod and the earth have a potential difference to exist and to cause following problem so at work: 1, well head electric spark, crude oil produces with natural gas in recovery process, because the existence of potential difference causes the friction electric spark easily, meet with the natural gas that forms volatilization at the well head place, will cause burning, cause well-head fire.2, electrochemical corrosion, well liquid is with alkalescence, acidity, salt material and moisture content, under the effect of potential difference in the oil well, form electrolyte, directly corrosion sucker rod and oil pipe can or break sucker rod and tube corrosion perforation when serious, and this situation is even more serious under direct current.
At the problems referred to above, the purpose of this utility model provides a kind of electric energy heating, safe and reliable again petroleum thermal recovery equipment of both having utilized.
In order to achieve the above object, the utility model has been taked following design: a kind of high viscous crude heating pole that coagulates, comprise by some hollow stems connect the sucker rod that forms and cover within it connect the electric heating cable that forms by some economize on electricity cables, it is characterized in that: the cable that is enclosed within the hollow stem is two or three, be respectively equipped with circular the negative electricity joint that can peg graft voluntarily and positive electricity joint at the two ends of described every economize on electricity cable, at described the moon, being sealed with the described cable of tetrafluoro insulating layer around the positive electricity joint locatees in hollow stem with setscrew nut, be connected and fixed with the internal thread on clamp nut and the described hollow stem, in described hollow stem, inject insulating heat-conductive oil.
Cause the loose contact of yin, yang electric connection in order to reduce hollow stem blank area oil impregnate, have seal groove near external screw thread one end, be placed with sealing ring in the sealing groove in the connection place of every hollow stem.
Because the utility model has been taked above design, the hollow section that is enclosed within the electric heating cable outside plays shielding action to electric current, has eliminated potential difference, has avoided electric spark and electrochemical corrosion effect, makes oil producing operation safe and reliable, has prolonged the application life of equipment; Owing to adopted tetrafluoro die casting sealing means, make insulation reliable simultaneously, interface structure is simple, and is easy to process; In addition owing to adopted seal groove to install the seal approach of sealing ring additional, overcome the loose contact that the cable connector place causes because of oil impregnate effectively, under the situation that does not change original production facility, both given the high effect that viscous crude plays the reduction concentration of heating of coagulating, again as using a solid sucker rod safe and reliable.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
Accompanying drawing 1 is the assembling schematic diagram of every sucker rod of the utility model.
Accompanying drawing 2 is connection schematic diagrames of the utility model two joint sucker rods.
Accompanying drawing 3 is the utility model position views in oil well.
Accompanying drawing 4 is another embodiment of the utility model.
As shown in Figure 1, sucker rod is formed by a section hollow stem 8 connections, every hollow stem 8 one ends have internal thread 14, one end has external screw thread 6, be with two cables 7 in the hollow stem 8, the two ends of cable 7 are respectively equipped with the two-phase of negative electricity joint 3 and positive electricity joint 12 negative electricity joints 3, one makes circular hole 17 shapes mutually, and another makes annulus 18 shapes mutually.The two-phase of positive electricity joint 12, one makes cylinder 19 shapes mutually, can insert shrinkage pool 17, and another phase is made annulus 20 shapes, can insert in the annulus 18 of negative electricity joint 3, and its fit dimension is can rotate without barrier after both butt joints of negative and positive.It between the two-phase of negative electricity joint 3 and between the two-phase of positive electricity joint 12 insulating layer 4,9 that forms with PTFE die casting.
When installing, from hollow stem 8 tops, (as shown in Figure 1) penetrates hollow stem 8, and the dome of negative electricity joint 3 contact with the step of hollow stem 8, can put into 5 adjustment of a pad in case of necessity highly with positive electricity joint 12 1 ends of cable 7.The setscrew nut 10 that will have internal thread is screwed into positive electricity joint 12 1 ends, cable 7 is located in hollow stem 8, to have externally threaded clamp nut 2 then is screwed in the internal thread 1 of hollow stem 8, compress the end of negative electricity joint 3, another clamp nut 11 is screwed into the setscrew nut 10 that compresses positive electricity joint 12 1 ends in the internal thread 13 of hollow stem 8.
In order to reduce yin, yang electric connection (3, the 12) loose contact that hollow stem 8 blank area oil impregnates cause, can leave seal groove 15 at hollow stem 8 external screw threads 6 one ends, in seal groove 15, put into sealing ring 16.
When installing in oil well, the internal thread 14 with every hollow stem connects (as shown in Figure 2) with the external screw thread 6 of another root hollow stem respectively, and along with being screwed into of internal and external screw thread, the yin, yang electric connection in the hollow stem is pegged graft voluntarily and is screwed into.The quantity of hollow stem is decided according to oil well depth, and the oil well lowest part is linked together near two cables in the hollow stem of solid sucker rod 21, forms power circuit (as shown in Figure 3).Power supply is that three-phase main-frequency becomes direct current or two-phase alternating current by rectifier.
Be another embodiment of the present utility model as shown in Figure 4, different is that the yin, yang electric connection is a three-phase with previous embodiment, and its structure is to establish a pair of annulus that can match again at joint area.When installing in the oil well, the threephase cable in last root hollow stem is connected into Y shape, forms power circuit.The advantage of present embodiment is not use rectifier directly to connect the three phase supply power supply in operation.
Claims (2)
1, a kind of high viscous crude heating pole that coagulates, comprise by some hollow stems 8 connect the sucker rod that forms and cover within it connect the electric heating cable that forms by some economize on electricity cables 7, it is characterized in that the cable 7 that is enclosed within the hollow stem 8 is two or three, be respectively equipped with circular the negative electricity joint 3 that can peg graft voluntarily and positive electricity joint 12 at the two ends of described every economize on electricity cable 7, be sealed with the tetrafluoro insulating layer around described yin, yang electric connection 3,12, described cable 7 usefulness setscrew nuts 10 are located in hollow stem 8.Be connected and fixed with the internal thread on clamp nut 2,11 and the described hollow stem 81,13, in described hollow stem 8, inject insulating heat-conductive oil.
2, height as claimed in claim 1 coagulates the viscous crude heating pole, it is characterized in that an end of the close external screw thread 6 in connection place of every hollow stem 8 wherein has seal groove 15, is placed with sealing ring 16 in the sealing groove 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91219790 CN2096635U (en) | 1991-08-12 | 1991-08-12 | High-congeal oil heating rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91219790 CN2096635U (en) | 1991-08-12 | 1991-08-12 | High-congeal oil heating rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2096635U true CN2096635U (en) | 1992-02-19 |
Family
ID=4926996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91219790 Expired - Lifetime CN2096635U (en) | 1991-08-12 | 1991-08-12 | High-congeal oil heating rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2096635U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109577872A (en) * | 2018-11-29 | 2019-04-05 | 美钻深海能源科技研发（上海）有限公司 | Double male joint and the oil pipe clean method for using the double male joint |
-
1991
- 1991-08-12 CN CN 91219790 patent/CN2096635U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109577872A (en) * | 2018-11-29 | 2019-04-05 | 美钻深海能源科技研发（上海）有限公司 | Double male joint and the oil pipe clean method for using the double male joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |