CN203403858U - Automatic compensation type steam injection packer - Google Patents
Automatic compensation type steam injection packer Download PDFInfo
- Publication number
- CN203403858U CN203403858U CN201320478925.8U CN201320478925U CN203403858U CN 203403858 U CN203403858 U CN 203403858U CN 201320478925 U CN201320478925 U CN 201320478925U CN 203403858 U CN203403858 U CN 203403858U
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- CN
- China
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- packer
- left end
- steam injection
- packer body
- automatic compensation
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Abstract
The utility model belongs to oil extraction equipment of the petroleum industry, and particularly relates to an automatic compensation type steam injection packer. A V-shaped sealing ring (3) is arranged between the interior of the left end of a packer body (6) and a central pipe (2), the V-shaped sealing ring (3) is in threaded sealing connection with the packer body (6) through a sealing nut (8), the outer portion of the left end of the packer body (6) is in threaded connection with a pressure-bearing cover (4) and is sealed by a sealing ring (5), the left end of a rubber sleeve (7) is arranged in the pressure-bearing cover (4), the right end of the rubber sleeve (7) is arranged in a control cover (12), a thermo-sensitive body (9) is arranged between the rubber sleeve (7) and the packer body (6), the thermal-sensitive body (9) is arranged in a thermal-sensitive body installing groove (6-1) clamped on the periphery of the packer body (6) and is limited by a limiting ring (10), the right end face of the limiting ring (10) is fixed by an external circlip (11), and a centralizer body (14) at the right end of the control cover (12) is in threaded fixed connection with a lower contact (15). The automatic compensation type steam injection packer is fast in deforming speed, large in deformation, high in deformation strength, good in resilience, capable of enabling setting time of the packer to be shortened by 30 %, good in sealing performance, and safe and reliable to use.
Description
Technical field
The utility model belongs to petroleum industry oil production equipment, particularly a kind of automatic compensation type steam injection packer.
Background technology
At present, the steam injection packer of domestic use adopts thermometal sheet or spring steel wire as hot action element substantially, under the effect of steam, toggle speed is slow and deformation force is little, be difficult to promote cartridge, thereby set weak effect, the drawback that after adopting spring element to also have steam injection to complete, packing element cannot shrink simultaneously, has brought the risk of Ka Jing.Steam injection packer cartridge material therefor is polytetrafluoroethylene (PTFE), this kind of material is when temperature reaches 280 ℃, the mechanical property of material sharply worsens, produce rheological phenomena, the strength of materials declines by a big margin, and packing element very easily comes off, after packing element fragment falls in well turn while taking out can plugging oil pump valve passage, affect field output, and because the fragment out-of-shape coming off brings great difficulty can to trouble of lost tool in hole fishing.And the sealing performance between compensation steam injection packer body and central tube is poor, packer body often damages seal while sliding, and causes seal failure.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technical deficiency, provides that a kind of rate of strain is fast, deflection is large, and packing is effective, the automatic compensation type steam injection packer of long service life.
The technical scheme that the utility model technical solution problem adopts is: automatic compensation type steam injection packer comprises box cupling, central tube, sealing nut, packer body, packing element, centralizer body, lower contact, be characterized in, in the left end of packer body and between central tube, V-shaped ring is housed, and with sealing nut and packer body seal with screwed joint, packer body left end head external screw thread connects pressure cap and seals with sealing ring, packing element left end is loaded in pressure cap, right-hand member is loaded on to be controlled in lid, between packing element and packer body, be provided with thermal sensing body, thermal sensing body is installed in the thermal sensing body mounting groove of packer body periphery and is spacing with spacing ring, spacing ring right side is fixed with circlip for shaft, controlling lid fixes with trip bolt with lower contact left end, the centralizer body that right-hand member head is covered in control is fixedly connected with lower contact screw thread.
The beneficial effects of the utility model are: the thermal sensing body of automatic compensation type steam injection packer adopts high titanium memory alloy spring as packer thermal starting element; rate of strain is fast; deflection is large, and deformation force is high, and recovery is good; can make packer setting time shorten 30%; reduce the thermal loss in steam injection process, can save steam injection expense 1/3 ~ 1/4 protection oil well casing, can not cause card well accident; good seal performance, safe and reliable.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, with embodiment, illustrate.
Fig. 1 is automatic compensation type steam injection packer structure chart.
In figure, 1-box cupling; 2-central tube; 3-V type joint ring; 4-pressure cap; 5-sealing ring; 6-packer body; 6-1-thermal sensing body mounting groove; 7-packing element; 8-sealing nut; 9-thermal sensing body; 10-spacing ring; 11-circlip for shaft; 12-controls lid; 13-trip bolt; 14-centralizer body; 15-lower contact.
The specific embodiment
Embodiment, with reference to accompanying drawing 1, the upper outside taper thread of left end head of the central tube 2 of automatic compensation type steam injection packer is connected and fixed box cupling 1, and lower contact 15 is threaded on the right-hand member head of central tube 2.Centralizer body 14 is threaded on the excircle of the left side of lower contact 15.The left side of centralizer body 14 connects to control covers 12, and control is covered 12 and is fixed in lower contact 15 with trip bolt 13 with the junction of lower contact 15.Control and to cover the right side that 12 left side is installed on packer body 6 and packing element 7, on the excircle of packer body 6, be provided with thermal sensing body mounting groove 6-1, in thermal sensing body mounting groove 6-1, fill thermal sensing body 9, right outside side at thermal sensing body 9 is fixing spacing with spacing ring 10, and it is fixing that the right side of spacing ring 10 is provided with circlip for shaft 11.At the peripheral equipment packing element 7 of thermal sensing body 9, the left end of packing element 7 is installed in pressure cap 4 right-hand members, and pressure cap 4 screw threads are fixed on the left end excircle of packer body 6 and with sealing ring 5 sealings.In the left end of packer body 6, with V-shaped ring 3, seal sealing nut 8 and packer body 6 seals with screwed joint for the left end of V-seal ring 3 with compensating pipe 2 junctions.
The operating principle of automatic compensation type steam injection packer is: the thermal sensing body 9 in automatic compensation type steam injection packer produces elastic deformation under the effect of high-temperature steam, promote packing element 7 expansions, reach the object of sealing oil jacket annular space, after packer body 6 sets, by packer body 6, the slip on expansion loop 2 compensates the thermal stretching amount of central tube 2, and centralizer body 14 can effectively alleviate the swing vibrations of the tube side being connected with lower contact 15 after packer body 6 slides.
Claims (1)
1. an automatic compensation type steam injection packer, comprise box cupling (1), central tube (2), sealing nut (8), packer body (6), packing element (7), centralizer body (14), lower contact (15), it is characterized in that in the left end of packer body (6) and central tube (2) between V-shaped ring (3) is housed, and with sealing nut (8) and packer body (6) seal with screwed joint, packer body (6) left end head external screw thread connects pressure cap (4) and seals with sealing ring (5), packing element (7) left end is loaded in pressure cap (4), right-hand member is loaded on to be controlled in lid (12), between packing element (7) and packer body (6), be provided with thermal sensing body (9), thermal sensing body (9) is installed in the peripheral thermal sensing body mounting groove (6-1) of packer body (6) and uses spacing ring (10) spacing, spacing ring (10) circlip for shaft for right side (11) is fixing, control lid (12) fixing with lower contact (15) trip bolt for left end (13), the centralizer body (14) of controlling lid (12) right-hand member head is fixedly connected with lower contact (15) screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320478925.8U CN203403858U (en) | 2013-08-07 | 2013-08-07 | Automatic compensation type steam injection packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320478925.8U CN203403858U (en) | 2013-08-07 | 2013-08-07 | Automatic compensation type steam injection packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203403858U true CN203403858U (en) | 2014-01-22 |
Family
ID=49939797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320478925.8U Expired - Fee Related CN203403858U (en) | 2013-08-07 | 2013-08-07 | Automatic compensation type steam injection packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203403858U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905468A (en) * | 2019-11-12 | 2020-03-24 | 盘锦兴隆石化机械有限公司 | Heat-insulation underground multistage compensator for oil field steam injection well |
| CN116479602A (en) * | 2023-05-05 | 2023-07-25 | 苏州宏洋纺织染整有限公司 | Steam sealing energy-saving device of steaming box |
-
2013
- 2013-08-07 CN CN201320478925.8U patent/CN203403858U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905468A (en) * | 2019-11-12 | 2020-03-24 | 盘锦兴隆石化机械有限公司 | Heat-insulation underground multistage compensator for oil field steam injection well |
| CN110905468B (en) * | 2019-11-12 | 2021-11-09 | 盘锦兴隆石化机械有限公司 | Heat-insulation underground multistage compensator for oil field steam injection well |
| CN116479602A (en) * | 2023-05-05 | 2023-07-25 | 苏州宏洋纺织染整有限公司 | Steam sealing energy-saving device of steaming box |
| CN116479602B (en) * | 2023-05-05 | 2023-12-15 | 苏州宏洋纺织染整有限公司 | Steam sealing energy-saving device of steaming box |
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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: 20140122 Termination date: 20140807 |
|
| EXPY | Termination of patent right or utility model |