CN201103381Y - Electrically heated wax clearing and preventing device for non-lever oil production well - Google Patents
Electrically heated wax clearing and preventing device for non-lever oil production well Download PDFInfo
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- CN201103381Y CN201103381Y CNU2007201769168U CN200720176916U CN201103381Y CN 201103381 Y CN201103381 Y CN 201103381Y CN U2007201769168 U CNU2007201769168 U CN U2007201769168U CN 200720176916 U CN200720176916 U CN 200720176916U CN 201103381 Y CN201103381 Y CN 201103381Y
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- resistance wire
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- copper nickel
- nickel resistance
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Abstract
An electrically heating wax removal and prevention device used for non-bar oil production wells mainly aims at solving the problem that the existing electrically heating wax removal and prevention device can not meet the site production requirements. The device is characterized in that the device also includes a round heater (9) connected with a power transmission cable (3). The heater is composed of a copper nickel resistance wire with three insulated phases (9a), an insulation layer (9b), a polypropylene net tearing fiber membrane filling body (9e), an internal protection layer (9d) composed of a polyester belt and a piece of semi-conductive cloth, a double-layer reverse galvanized steel wire armored protection layer (9c) and a built-in three-phase star copper connection joint (9f), wherein, the components are connected tightly from the exterior to the interior in sequence. The three-phase star copper connection joint (9f) is positioned at the bottom of the copper nickel resistance wire (9a) and is in conductor connection with the three-phase copper nickel resistance wire after being tightly fixed by a tightening splint. The device has the advantages of wearing resistance, easy placement, accurate positioning and good effect of wax removal by heating.
Description
Technical field:
The utility model relates to and a kind ofly is used for oil exploitation and prevents oil well paraffinication and remove in the oil well device of wax deposition, specifically relates to a kind ofly be used for that the Rodless oil extraction well is finished clearly, the electric heater unit of wax control function.
Background technology:
Paraffin blockage, wax card problem often appear in Rodless oil extraction well in process of production, wash mode for head it off often adopts dosing and heat, but these two kinds of methods all have certain injury to cable, and wax removal is not thorough.If adopt conventional electric pump well mechanical type dewaxing method, there are the descending difficulty of paraffin scraper, well depth and the wax removal time is long, labour intensity is big problem, especially for the low yield oil well, wax stone can not in time be discharged and paraffin blockage problem once more be occurred.In addition, also adopt oil pipe and cover pipe heating method in the prior art, but under this dual mode, cause oil jacket short circuit midway easily, and need on the oil pipe to use more centralizer, increased the job execution difficulty.That is to say that the requirement that existing these electrical heating are clear, wax-proofing apparatus can't satisfy site operation has influenced the exploitation in oil field later stage to a certain extent.
The utility model content:
In order to solve the problem that existing electrical heating is clear, wax-proofing apparatus can't satisfy the requirement of Rodless oil extraction well site operation, the utility model provides a kind of clear, wax-proofing apparatus of electrical heating that is exclusively used in the Rodless oil extraction well, this kind electrical heating is clear, wax-proofing apparatus utilizes the fuel factor principle to adopt the special construction of cable, have not fragile, be easy to transfer, accurate positioning, heating paraffin removal good effectiveness.
The technical solution of the utility model is: it is clear that this kind is used for the electrical heating of Rodless oil extraction well; wax-proofing apparatus; comprise electrical heating control cabinet and electric power handling cable; in addition; described device also comprises a circular calandria that is connected with the electric power handling cable; this calandria is by three-phase copper nickel resistance wire insulated from each other; insulating layer; the inner protective layer that polypropylene mesh split fibre film obturator and polyester belt and semiconductive cloth constitute; double-deck oppositely zinc-coated wire armouring external protection and a built-in three-phase star copper connecting head constitute; wherein; said modules is combined closely from the inside to the outside successively; described three-phase star copper connecting head is positioned at the bottom of copper nickel resistance wire, does conductor by the fastening back of the binding clip on it with three-phase copper nickel resistance wire and is connected.
The utlity model has following beneficial effect: because after taking such scheme; what finish wax removal and inhibition work mainly is a calandria that is filled to standard circular and skelteon is arranged; its internal resistance silk is done Y-connection; its end is by being connected with ground electrical heating control cabinet; other end three-phase star in oil pipe connects; like this; come the input voltage of calandria internal resistance wire under the control well by ground electrical heating control cabinet; thereby electric current in the control calandria; can realize thus regulating the heat that calandria produces, have clear preferably according to wax deposition situations different in the well; wax control result.In addition, the electric power handling cable that is connected with calandria also can produce certain heat, makes it possible to the section of being lowered to is carried out the whole process heating.This calandria cross section is circular, can reduce resistance, be convenient to, down, therefore the electrical heating of this form clearly, wax-proofing apparatus have not fragile, be easy to transfer, the characteristics of accurate positioning.
Description of drawings:
Fig. 1 is the schematic diagram of the utility model after aboveground connection.
Fig. 2 is the cross-sectional view of calandria in the utility model.
Fig. 3 is the structural representation of three-phase star copper connecting head in the utility model calandria.
1-electrical heating control cabinet among the figure, 2-Rodless oil extraction well control system device, 3-electric power handling cable; 4-well head cable seal and fastening devices, 5-electric pump well well head, 6-Rodless oil extraction well power cable; the 7-submersible electric pump, 8-Electric Submersible Pump Unit, 9-calandria; 9a-copper nickel resistance wire; the 9b-insulating layer, 9c-external protection, 9d-inner protective layer; the 9e-obturator, 9f-three-phase star copper connecting head.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By Fig. 1 in conjunction with Fig. 2; shown in 3; it is clear that this kind is used for the electrical heating of Rodless oil extraction well; wax-proofing apparatus; comprise electrical heating control cabinet 1 and electric power handling cable 3; these are conventional structures; unique distinction is: described device also comprises a circular calandria 9 that is connected with electric power handling cable 3; this calandria is by three-phase copper nickel resistance wire 9a insulated from each other; insulating layer 9b; the inner protective layer 9d that polypropylene mesh split fibre film obturator 9e and polyester belt and semiconductive cloth constitute; double-deck oppositely zinc-coated wire armouring external protection 9c and a built-in three-phase star copper connecting head 9f constitute; wherein; said modules is combined closely from the inside to the outside successively; described three-phase star copper connecting head 9f is positioned at the bottom of copper nickel resistance wire 9a, does conductor by the fastening back of the binding clip on it with three-phase copper nickel resistance wire and is connected.
During installation, in the Rodless oil extraction well, after as shown in Figure 1 electrical heating control cabinet 1, Rodless oil extraction well control system device 2, electric power handling cable 3, well head cable seal and fastening devices 4, electric pump well well head 5, Rodless oil extraction well power cable 6, submersible electric pump 7, Electric Submersible Pump Unit 8 being installed in turn, calandria 9 directly is lowered to the heating location that designs in the oil pipe by the electric pump well head, then well head and heating cable are sealed and fix, afterwards just normally device moved.
Claims (1)
1, a kind of clear, wax-proofing apparatus of electrical heating that is used for the Rodless oil extraction well comprises electrical heating control cabinet (1) and electric power handling cable (3), it is characterized in that:
Described device also comprises a circular calandria (9) that is connected with electric power handling cable (3); this calandria is by three-phase copper nickel resistance wire (9a) insulated from each other; insulating layer (9b); the inner protective layer (9d) that polypropylene mesh split fibre film obturator (9e) and polyester belt and semiconductive cloth constitute; double-deck oppositely zinc-coated wire armouring external protection (9c) and a built-in three-phase star copper connecting head (9f) constitute; wherein; said modules is combined closely from the inside to the outside successively; described three-phase star copper connecting head (9f) is positioned at the bottom of copper nickel resistance wire (9a), does conductor by the fastening back of the binding clip on it with three-phase copper nickel resistance wire and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201769168U CN201103381Y (en) | 2007-09-21 | 2007-09-21 | Electrically heated wax clearing and preventing device for non-lever oil production well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201769168U CN201103381Y (en) | 2007-09-21 | 2007-09-21 | Electrically heated wax clearing and preventing device for non-lever oil production well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201103381Y true CN201103381Y (en) | 2008-08-20 |
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ID=39950406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201769168U Expired - Fee Related CN201103381Y (en) | 2007-09-21 | 2007-09-21 | Electrically heated wax clearing and preventing device for non-lever oil production well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201103381Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114045A (en) * | 2015-08-05 | 2015-12-02 | 中国石油大学(华东) | CCUS system for extracting oil based on gas lifting method and application thereof |
| CN111364962A (en) * | 2020-04-01 | 2020-07-03 | 辽宁华孚石油高科技股份有限公司 | Electric heating method and device for enhancing oil production of SAGD well |
-
2007
- 2007-09-21 CN CNU2007201769168U patent/CN201103381Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114045A (en) * | 2015-08-05 | 2015-12-02 | 中国石油大学(华东) | CCUS system for extracting oil based on gas lifting method and application thereof |
| CN105114045B (en) * | 2015-08-05 | 2018-04-27 | 中国石油大学(华东) | A kind of CCUS systems recovered the oil based on gas lift method and application |
| CN111364962A (en) * | 2020-04-01 | 2020-07-03 | 辽宁华孚石油高科技股份有限公司 | Electric heating method and device for enhancing oil production of SAGD well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080820 Termination date: 20160921 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |