CN201581882U - Steam injection packoff device for thick oil thermal production well - Google Patents
Steam injection packoff device for thick oil thermal production well Download PDFInfo
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- CN201581882U CN201581882U CN2010201000665U CN201020100066U CN201581882U CN 201581882 U CN201581882 U CN 201581882U CN 2010201000665 U CN2010201000665 U CN 2010201000665U CN 201020100066 U CN201020100066 U CN 201020100066U CN 201581882 U CN201581882 U CN 201581882U
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- tube
- central tube
- cone
- seat
- thick oil
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Abstract
The utility model relates to a steam injection packoff device for a thick oil thermal production well, which has the advantages of having simple structure and convenient use, being capable of shortening the auxiliary working time before oil extraction, improving the working efficiency, being heat-resistant and corrosion-resistant, having stable working state and the like; and the steam injection packoff device has the structure that the packoff device comprises a central pipe device; the upper end of the central pipe device is connected with a thrust device; and a graphite sealing device is arranged at the connection part of the central pipe device and the thrust device.
Description
Technical field
The utility model relates to a kind of thick oil thermal extraction and annotates packing every device.
Background technology
Viscous crude (also claiming mink cell focus) is the important component part in the petroleum hydrocarbon energy, has than the great potential of conventional crude resource up to several times.Viscous crude, super heavy oil wells, strata pressure is low, poor mobile performance, viscosity of thickened oil height, density greatly, not only displacement efficiency is low, and volume to sweep oily efficient also low, can cause that pit shaft feed flow deficiency, pumping difficulty, well yield sharply descend the degradation problem, many at present employing thermal recovery technologies carry out the viscous crude collection, every device, and the wearing and tearing that very easily are corroded after long-time use of this structure influence the exploitation of viscous crude at its employed notes packing of hot extractor.
Summary of the invention
The purpose of this utility model is exactly in order to address the above problem, and provides a kind of and has simple in structurely, easy to use, and the thick oil thermal extraction that can effectively prolong advantages such as thermal recovery equipment application life is annotated packing every device.
For achieving the above object, the utility model adopts following technical scheme:
A kind of thick oil thermal extraction is annotated packing every device, and it comprises the central tube device, and central tube device upper end is connected with thrust device, is provided with the graphite grazing device in both junctions.
Described graphite grazing device is the soft graphite tube, is enclosed with spring in its inwall.
Described central tube device comprises upper center tube and central tube, connects by upper cone II between the two; The upper center tube upper end is connected with thrust device with valve pocket by upper cone I; Described thrust device comprises catch bar, the top suit top connection of catch bar; The top connection lower end is connected with the power transmission cover, is provided with sealing shroud in both junctions; The power transmission cover is connected with overcoat by the disconnection body, and overcoat then is connected with connecting cylinder, and connecting cylinder is connected with barrel shell, is provided with upper slips on barrel shell; Catch bar is connected with upper center tube with upper cone I by valve pocket; Barrel shell is terminal to be connected with the graphite grazing device, and the graphite grazing device is connected with the wedge of upper center tube; Wedge is sleeved on the upper center tube outside; Upper cone II is connected with connector, and connector then is connected with the seat of honour; The seat of honour is installed on the exterior central tube of central tube outside, suit temperature resistant rubber tube on the exterior central tube, and the temperature resistant rubber tube links to each other with following, and following seat is connected with lower cone; Domatic and the lower slips of lower cone contacts, and lower slips is connected with wiper block, also is provided with centralizer body, fixed block and sliding sleeve successively with the wiper block opposite side on exterior central tube; The lower end suit adapter sleeve of central tube installs and fixes cover on the adapter sleeve, central tube is terminal to be connected with ball-and-seat.
The utility model has adopted the graphite tube of corrosion-and high-temp-resistant, the graphite tube center is a high-strength spring, spring is surrounded by graphite, this structure makes originally, and the bad graphite tube of elastic force becomes pliable and tough by elastic force, when the pressure of sucker rod by top connection, power transmission cover, overcoat, connecting cylinder, upper cone, when barrel shell affacts on the graphite tube, graphite tube radially rises and plays the effect that sealed tube is annotated greatly.
In use, with this device down to design attitude, setting up the strong point at internal surface of sleeve pipe sets with realization, the tubing string quality is pressed on the seal simultaneously, make seal diameter become big the realization and set, in this simultaneously, upper slips enters duty, make the seal can not return, reach the purpose of the packer seal of tube.After having annotated vapour, open the single current device, crude oil is flow to above the process pipe string, can directly go up operation without kill-job.
The beneficial effects of the utility model are: simple in structure, easy to use, can shorten the service working time before recovering the oil, and increase work efficiency, high temperature resistant, corrosion-resistant, advantages such as stable working state.On process pipe string, add the single current device, annotate and directly to go up operation after vapour is finished, reduce accounting for 5 to 7 days well time, improve rate when driving a well; Without the bittern kill-job, the stratum is not produced cold damage during operation, the near wellbore zone gas channel is unimpeded, improves thermal production well output, reduces production cost per tone oil; Keep normal steam injection pressure, do not influence and annotate the vapour effect.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a soft graphite barrel structure schematic diagram.
Wherein, 1, top connection 2, power transmission cover 3, overcoat 4, connecting cylinder 5, upper cone I 6, barrel shell 7, wedge 8, upper cone II 9, central tube 10, the seat of honour 11, exterior central tube 12, fixing pin 13, pin 14, lower slips 15, wiper block 16, fixed cover 17, ball-and-seat 18, adapter sleeve 19, sliding sleeve 20, fixed block 21, centralizer body 22, lower cone 23, following 24, temperature resistant rubber tube 25, connector 26, upper center tube 27, soft graphite tube 28, upper slips 29, valve pocket 30, catch bar 31, disconnection body 32, sealing shroud 33, spring.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Among Fig. 1, thick oil thermal extraction is annotated packing and is comprised the central tube device every device, and central tube device upper end is connected with thrust device, is provided with the graphite grazing device in both junctions.
The graphite grazing device is a soft graphite tube 27, is enclosed with spring 33 in its inwall, as shown in Figure 2.
The central tube device comprises upper center tube 26 and central tube 9, connects by upper cone II8 between the two; Upper center tube 26 upper ends are connected with thrust device with valve pocket 29 by upper cone I5; Described thrust device comprises catch bar 30, the top suit top connection 1 of catch bar 30; Top connection 1 lower end is connected with power transmission cover 2, is provided with sealing shroud 32 in both junctions; Power transmission cover 2 is connected with overcoat 3 by disconnection body 31, and 3 in overcoat is connected with connecting cylinder 4, and connecting cylinder 4 is connected with barrel shell 6, is provided with upper slips 28 on barrel shell 6; Catch bar 30 is connected with upper center tube 26 with upper cone I5 by valve pocket 29; Barrel shell 6 ends are connected with soft graphite tube 27, and soft graphite tube 27 is connected with the wedge 7 of upper center tube 26; Wedge 7 is sleeved on upper center tube 26 outsides; Upper cone II8 is connected with connector 25, and 25 of connectors are connected with the seat of honour 10; The seat of honour 10 is installed on the exterior central tube 11 of central tube 9 outsides, suit temperature resistant rubber tube 24 on the exterior central tube 11, temperature resistant rubber tube 24 links to each other with following 23, and following seat 23 is connected with exterior central tube 11 by fixing pin 12, and seat 23 also is connected with lower cone 22 by pin 13 at present together; Domatic and the lower slips 14 of lower cone 22 contacts, and lower slips 14 is connected with wiper block 15, also is provided with centralizer body 21, fixed block 20 and sliding sleeve 19 successively with wiper block 15 opposite sides on exterior central tube 11; The lower end suit adapter sleeve 18 of central tube 9 installs and fixes cover 16 on the adapter sleeve 18, central tube 9 ends are connected with ball-and-seat 17.
Claims (3)
1. a thick oil thermal extraction is annotated packing every device, it is characterized in that it comprises the central tube device, and central tube device upper end is connected with thrust device, is provided with the graphite grazing device in both junctions.
2. thick oil thermal extraction as claimed in claim 1 is annotated packing every device, it is characterized in that described graphite grazing device is the soft graphite tube, is enclosed with spring in its inwall.
3. thick oil thermal extraction as claimed in claim 1 is annotated packing every device, it is characterized in that described central tube device comprises upper center tube and central tube, connects by upper cone II between the two; The upper center tube upper end is connected with thrust device with valve pocket by upper cone I; Described thrust device comprises catch bar, the top suit top connection of catch bar; The top connection lower end is connected with the power transmission cover, is provided with sealing shroud in both junctions; The power transmission cover is connected with overcoat by the disconnection body, and overcoat then is connected with connecting cylinder, and connecting cylinder is connected with barrel shell, is provided with upper slips on barrel shell; Catch bar is connected with upper center tube with upper cone I by valve pocket; Barrel shell is terminal to be connected with the graphite grazing device, and the graphite grazing device is connected with the wedge of upper center tube; Wedge is sleeved on the upper center tube outside; Upper cone II is connected with connector, and connector then is connected with the seat of honour; The seat of honour is installed on the exterior central tube of central tube outside, suit temperature resistant rubber tube on the exterior central tube, and the temperature resistant rubber tube links to each other with following, and following seat is connected with lower cone; Domatic and the lower slips of lower cone contacts, and lower slips is connected with wiper block, also is provided with centralizer body, fixed block and sliding sleeve successively with the wiper block opposite side on exterior central tube; The lower end suit adapter sleeve of central tube installs and fixes cover on the adapter sleeve, central tube is terminal to be connected with ball-and-seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201000665U CN201581882U (en) | 2010-01-22 | 2010-01-22 | Steam injection packoff device for thick oil thermal production well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201000665U CN201581882U (en) | 2010-01-22 | 2010-01-22 | Steam injection packoff device for thick oil thermal production well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201581882U true CN201581882U (en) | 2010-09-15 |
Family
ID=42723880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201000665U Expired - Fee Related CN201581882U (en) | 2010-01-22 | 2010-01-22 | Steam injection packoff device for thick oil thermal production well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201581882U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806886A (en) * | 2012-11-06 | 2014-05-21 | 中国石油化工股份有限公司 | Underground steam sealing and controlling device and method of heavy oil thermal recovery well |
| CN106639967A (en) * | 2016-12-08 | 2017-05-10 | 隆学武 | Rubber sleeve coated with graphite layer, packer and bridge plug |
-
2010
- 2010-01-22 CN CN2010201000665U patent/CN201581882U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806886A (en) * | 2012-11-06 | 2014-05-21 | 中国石油化工股份有限公司 | Underground steam sealing and controlling device and method of heavy oil thermal recovery well |
| CN103806886B (en) * | 2012-11-06 | 2016-04-06 | 中国石油化工股份有限公司 | A kind of sealed device of thick oil thermal extraction underground steam and sealed method thereof |
| CN106639967A (en) * | 2016-12-08 | 2017-05-10 | 隆学武 | Rubber sleeve coated with graphite layer, packer and bridge plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20120122 |