CN204344061U - Steam injection packer - Google Patents
Steam injection packer Download PDFInfo
- Publication number
- CN204344061U CN204344061U CN201420824050.7U CN201420824050U CN204344061U CN 204344061 U CN204344061 U CN 204344061U CN 201420824050 U CN201420824050 U CN 201420824050U CN 204344061 U CN204344061 U CN 204344061U
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- axle
- packing element
- top connection
- slips
- steam injection
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Abstract
The utility model belongs to oil exploitation instrument, in particular to a kind of steam injection packer, comprise top connection (1), upper prepared cap (2), lower contact (32), lower prepared cap (33), upper cone (13), lower cone (18), upper press ring (4), lower pressure ring (12), packing element (8), packing element axle (7), outer cylinder sheath (23), cylinder sleeve (26), pawl spring (3), packing element axle (7), sealing shroud (9), the inner chamber of slips axle (19) is set on the outer wall of top connection (1), between pawl spring (3) and packing element axle (7), be between packing element axle (7) with slips axle (19) and be threaded, sealing shroud (9) is placed between packing element axle (7) and top connection (1) outer wall, cushion rubber (29) is placed between slips axle (19) and top connection (1) outer wall, steam injection packer construction is simple, sleeve pipe can be protected, high temperature gas damage sleeve pipe when avoiding steam injection, improve the operating efficiency of steam injection, the exploitation of viscous crude can be widely used in.
Description
Technical field
The utility model belongs to oil exploitation instrument, particularly a kind of steam injection packer.
Background technology
At present, domestic heavy oil wells increases year by year, crude oil output is improved by thermal recovery technology in oil field, along with the exploitation in oil field, conventional oil field is fewer and feweri, heavy crude producing oil field is following developing direction, viscous crude has the shortcomings such as viscosity is high, poor fluidity, permeability are low, thick oil thermal extraction steam injection is main straight well thermal recovery technology, and existing packer when cannot avoid steam injection high-temperature gas to the infringement of upper strata sleeve pipe, when causing the caving in and examine pump well-flushing of oil well, flushing fluid runs off and pours in down a chimney oil reservoir, causes the cold damage of oil reservoir.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technical deficiency, provides one can protect upper strata sleeve pipe, avoids causing cold damage to oil reservoir, the steam injection packer that production efficiency is high.
The technical scheme that the utility model technical solution problem adopts is: steam injection packer comprises top connection, upper prepared cap, lower contact, lower prepared cap, upper cone, lower cone, upper press ring, lower pressure ring, packing element, packing element axle, outer cylinder sheath, cylinder sleeve, be characterized in that the inner chamber of pawl spring, packing element axle, sealing shroud, slips axle is set on the outer wall of top connection, be between pawl spring with packing element axle, between packing element axle with slips axle and be threaded, sealing shroud is placed between packing element axle and top connection outer wall, and cushion rubber is placed between slips axle and top connection outer wall.
The beneficial effects of the utility model are: steam injection packer construction is simple; sleeve pipe can be protected; high temperature gas damage sleeve pipe when avoiding steam injection; when preventing oil well from caving in and prevent inspection pump well-flushing, flushing fluid runs off and pours in down a chimney oil reservoir; stop the cold damage to oil reservoir; improve the operating efficiency of steam injection, the exploitation of viscous crude can be widely used in.
Accompanying drawing explanation
Illustrate with embodiment below in conjunction with accompanying drawing.
Fig. 1 is steam injection packer construction sectional view.
In figure, 1-top connection; 2-upper prepared cap; 3-pawl spring; 4-upper press ring; The upper protection ring of 5-; 6-protects shoulder; 7-packing element axle; 8-packing element; 9-sealing shroud; Protection ring under 10-; Protection shoulder under 11-; Pressure ring under 12-; 13-upper cone; 14-slips; 15-slips spring; 16-slips cover; 17-slips cover is for cap; 18-lower cone; 19-slips axle; 20-piston; 21-fixture block; 22-auxiliary piston; 23-outer cylinder sheath; 24-mutual connection; 25-locks cover; 26-cylinder sleeve; 27-snap; 28-snap seat; 29-cushion rubber; 30-pawl spring axle; 31-sliding sleeve; 32-lower contact; 33-lower prepared cap; 34-hydraulic pressure deblocking shear pin; 35-carries deblocking shear pin; The setting shear pin of 36-.
Detailed description of the invention
Embodiment, with reference to accompanying drawing 1, the inner chamber of the pawl spring 3 of steam injection packer, packing element axle 7, sealing shroud 9, slips axle 19 is set on the outer wall of top connection 1, for being threaded between pawl spring 3 with packing element axle 7, between packing element axle 7 with slips axle 19, sealing shroud 9 is placed between packing element axle 7 and top connection 1 outer wall, and cushion rubber 29 is placed between slips axle 19 and top connection 1 outer wall.Be threaded between upper prepared cap 2 with upper press ring 4; spacing with the swollen card in pawl spring 3 upper end between top connection 1 and upper prepared cap 2; upper protection ring 5 is sleeved on protection shoulder 6, and upper protection shoulder 6 is sleeved on the packing element axle 7 below upper press ring 4, and packing element 8 is sleeved on the packing element axle 7 below protection shoulder 6.Lower protection ring 10 is sleeved on lower protection shoulder 11, and lower protection shoulder 11 is sleeved on the packing element axle 7 below packing element 8, and lower pressure ring 12 to be sleeved on the packing element axle 7 below lower protection shoulder 11 and to be connected with upper cone 13 threaded upper ends.Upper cone 13 and lower cone 18 are enclosed within the outer wall of slips axle 19 respectively, upper cone 13 is connected with the taper-face contact of slips 14 respectively with the conical surface of lower cone 18, slips spring 15 is contained in the circular hole of slips 14, be contained in the endoporus of slips cover 16 outside slips 14, slips cover 16 is installed on the shoulder of upper cone 13 and lower cone 18 respectively, slips cover 16 and slips are carried on the back between cap 17 and are threaded, and slips back of the body cap 17 is sleeved on lower cone 18.Outer cylinder sheath 23 is threaded with lower cone 18, and piston 20 is placed between outer cylinder sheath 23 and slips axle 19, and is connected with slips axle 19 with setting shear pin 36, and fixture block 21 is installed in the side opening of slips axle 19.Between the outer wall that auxiliary piston 22 is placed in the top connection 1 below setting shear pin 36 and outer cylinder sheath 23, mutual connection 24 is placed between auxiliary piston 22, outer cylinder sheath 23, cylinder sleeve 26, mutual connection 24 respectively with between outer cylinder sheath 23 lower end, cylinder sleeve 26 is threaded between upper end.Locking cover 25 is sleeved on the outer wall of top connection 1 lower end, locking cover 25 is placed between the outer wall of top connection 1, mutual connection 24, cylinder sleeve 26, locking cover 25 upper end is threaded with auxiliary piston 22, spacing between locking cover 25 lower end snap 27 and snap seat 28, use between the outer wall of snap seat 28 and top connection 1 lower end that to carry deblocking shear pin 35 spacing.Pawl spring axle 30 is housed below snap seat 28, the outer wall that pawl spring axle 30 is sleeved on top connection 1 lower end is threaded with snap seat 28, sliding sleeve 31 is contained in the inner chamber of lower contact 32, spacing with hydraulic pressure deblocking shear pin 34 between lower contact 32 and sliding sleeve 31, lower back cap 33 is threaded for cylinder sleeve 26 with lower contact 32 spacing.
The course of work of steam injection packer is: oil pipe connects top connection 1, behind operating position of going into the well, suppresses in oil pipe, and after reaching certain pressure, piston 20 is cut off setting shear pin 36 and promoted lower cone 18 and move upward and slips 14 is stretched out, anchoring string.Auxiliary piston 22 and locking cover 25 move downward and drive upper cone 13, slips axle 19 and packing element axle 7 to move downward simultaneously, in the inclined-plane wedging packing element 8 of packing element axle 7, packing element 8 is contacted with the large footpath of packing element axle 7, form expansion, packing element 8 and internal surface of sleeve pipe are formed and seal, the inclined-plane press seal cover 9 of packing element axle 7 internal diameter, makes instrument inner chamber form sealing simultaneously.
Claims (1)
1. a steam injection packer, comprise top connection (1), upper prepared cap (2), lower contact (32), lower prepared cap (33), upper cone (13), lower cone (18), upper press ring (4), lower pressure ring (12), packing element (8), packing element axle (7), outer cylinder sheath (23), cylinder sleeve (26), it is characterized in that pawl spring (3), packing element axle (7), sealing shroud (9), the inner chamber of slips axle (19) is set on the outer wall of top connection (1), between pawl spring (3) and packing element axle (7), be between packing element axle (7) with slips axle (19) and be threaded, sealing shroud (9) is placed between packing element axle (7) and top connection (1) outer wall, cushion rubber (29) is placed between slips axle (19) and top connection (1) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420824050.7U CN204344061U (en) | 2014-12-24 | 2014-12-24 | Steam injection packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420824050.7U CN204344061U (en) | 2014-12-24 | 2014-12-24 | Steam injection packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344061U true CN204344061U (en) | 2015-05-20 |
Family
ID=53227336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420824050.7U Active CN204344061U (en) | 2014-12-24 | 2014-12-24 | Steam injection packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204344061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027374A (en) * | 2021-04-14 | 2021-06-25 | 盘锦博程实业有限公司 | Double-stage temperature control self-sealing device |
-
2014
- 2014-12-24 CN CN201420824050.7U patent/CN204344061U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027374A (en) * | 2021-04-14 | 2021-06-25 | 盘锦博程实业有限公司 | Double-stage temperature control self-sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |