CN102817577A - Double-cylinder hydraulic packer - Google Patents
Double-cylinder hydraulic packer Download PDFInfo
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- CN102817577A CN102817577A CN 201110152375 CN201110152375A CN102817577A CN 102817577 A CN102817577 A CN 102817577A CN 201110152375 CN201110152375 CN 201110152375 CN 201110152375 A CN201110152375 A CN 201110152375A CN 102817577 A CN102817577 A CN 102817577A
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- central tube
- piston ring
- cylinder
- piston
- upper piston
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Abstract
The invention discloses a double-cylinder hydraulic packer which comprises an upper joint, a central pipe, an upper rubber barrel seat, a rubber barrel liner pipe, a rubber barrel, a lower rubber barrel seat and a lower joint. An upper piston ring is connected at the lower end of the lower rubber barrel seat outside the central pipe, an upper piston is connected outside the upper piston ring, an upper hydraulic cylinder is connected outside the central pipe in the upper piston, and a first hydraulic cavity is formed among the upper piston ring, the upper piston, the upper hydraulic cylinder and the central pipe. A lower piston ring is connected at the lower end of the upper piston, a lower piston is connected outside the lower piston ring, a lower hydraulic cylinder is connected outside the central pipe in the lower piston, and a second hydraulic cavity is formed among the lower piston ring, the lower piston, the lower hydraulic cylinder and the central pipe. The first hydraulic cavity and the second hydraulic cavity are arranged to enhance acting force of the packer in operation, and accordingly packing effect is further improved, and the safety factor is improved.
Description
Technical field
The present invention relates to a kind of packer, particularly relate to a kind of double-cylinder hydraulic packer.
Background technology
Present packer is mechanical type mostly, and its complex structure and very easily damage are carried out packing and handled when being unfavorable for oil mining, adopt single cylinder double-cylinder hydraulic packer, and its active force is less again, and the packing effect is not very good, and safety factor is lower.
Summary of the invention
Technical problem to be solved by this invention provides the twin-tub double-cylinder hydraulic packer that a kind of active force is big, packing is effective.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of double-cylinder hydraulic packer comprises top connection, central tube, goes up glue tube base, packing element bushing pipe, packing element, lower rubber cylinder seat, lower contact; Wherein the upper end of central tube connects with top connection; The lower end of central tube connects with lower contact, and the packing element liner sleeve is contained in outside the central tube, and packing element is sleeved on outside the packing element bushing pipe and between last glue tube base and lower rubber cylinder seat; The lower end of the outer lower rubber cylinder seat of said central tube is connected with upper piston ring; Upper piston ring is externally connected with upper piston, and the upper piston inner central tube is externally connected with fluid cylinder, forms hydraulic cavities one between upper piston ring, upper piston and last fluid cylinder, central tube; The lower end of upper piston is connected with the lower piston ring, and the lower piston ring is externally connected with lower piston, and the lower piston inner central tube is externally connected with down fluid cylinder, forms hydraulic cavities two between lower piston ring, lower piston and following fluid cylinder, central tube; Offer the inlet opening one and inlet opening two that are communicated with hydraulic cavities one and hydraulic cavities two respectively on the central tube.
As preferably, said packing element is divided into 2 to 4 sections, is provided with gasket ring between per two sections packing elements.
As preferably, said central tube is divided into upper and lower two sections, and upper center tube and lower center tube connect with thread forms through last fluid cylinder.
As preferably, the junction of said upper piston ring and lower rubber cylinder seat is provided with backing-up screw.
A kind of double-cylinder hydraulic packer of the present invention, the active force when increasing packer work through hydraulic cavities one is set with hydraulic cavities two has further been strengthened the packing effect, has improved safety factor, and structure design simple, be easy to make processing, practical.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further explain.
Fig. 1 is the structural representation of a kind of double-cylinder hydraulic packer of the present invention.
Wherein, Reference numeral: 1 is top connection, and 3 is last glue tube base, and 4 is the packing element bushing pipe, and 5 is packing element, and 6 is the lower rubber cylinder seat; 7 are lower contact, and 8 is upper piston ring, and 9 is upper piston, and 10 is last fluid cylinder, and 11 is hydraulic cavities one; 12 is the lower piston ring, and 13 is lower piston, and 14 are following fluid cylinder, and 15 is that hydraulic cavities two, 16 is an inlet opening one; 17 is that inlet opening two, 18 is a gasket ring, and 19 is upper center tube, and 20 is lower center tube, and 21 is backing-up screw.
The specific embodiment
Disclosed arbitrary characteristic in this manual (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
As shown in Figure 1, a kind of double-cylinder hydraulic packer of the present invention comprises top connection 1, central tube, goes up glue tube base 3, packing element bushing pipe 4, packing element 5, lower rubber cylinder seat 6, lower contact 7; Wherein the upper end of central tube connects with top connection 1; The lower end of central tube connects with lower contact 7, and packing element bushing pipe 4 is sleeved on outside the central tube, and packing element 5 is sleeved on outside the packing element bushing pipe 4 and between last glue tube base 3 and lower rubber cylinder seat 6; The lower end of the outer lower rubber cylinder seat 6 of said central tube is connected with upper piston ring 8; Upper piston ring 8 is externally connected with upper piston 9, and upper piston 9 inner central tubes are externally connected with fluid cylinder 10, forms hydraulic cavities 1 between upper piston ring 8, upper piston 9 and last fluid cylinder 10, central tube; The lower end of upper piston 9 is connected with lower piston ring 12, and lower piston ring 12 is externally connected with lower piston 13, and lower piston 13 inner central tubes are externally connected with down fluid cylinder 14, forms hydraulic cavities 2 15 between lower piston ring 12, lower piston 13 and following fluid cylinder 14, central tube; Offer the inlet opening 1 and inlet opening 2 17 that are communicated with hydraulic cavities 1 and hydraulic cavities 2 15 respectively on the central tube.
As shown in Figure 1, the packing element 5 of a kind of double-cylinder hydraulic packer of the present invention is divided into 2 to 4 sections, is provided with gasket ring 18 between per two sections packing elements 5, can prevent that like this packing element 5 from breaking.
As shown in Figure 1, the central tube of a kind of double-cylinder hydraulic packer of the present invention is divided into upper and lower two sections, and upper center tube 19 connects with thread forms through last fluid cylinder 10 with lower center tube 20, assembles, dismantles very convenient.
As shown in Figure 1, the upper piston ring 8 of a kind of double-cylinder hydraulic packer of the present invention is provided with backing-up screw 21, more fastening packing element 5 with the junction of lower rubber cylinder seat 6.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit and the principle of invention, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. double-cylinder hydraulic packer; Comprise top connection (1), central tube, go up glue tube base (3), packing element bushing pipe (4), packing element (5), lower rubber cylinder seat (6), lower contact (7); Wherein the upper end of central tube connects with top connection (1); The lower end of central tube connects with lower contact (7), and packing element bushing pipe (4) is sleeved on outside the central tube, and packing element (5) is sleeved on outside the packing element bushing pipe (4) and is positioned between glue tube base (3) and the lower rubber cylinder seat (6); It is characterized in that: the lower end of the outer lower rubber cylinder seat (6) of said central tube is connected with upper piston ring (8); Upper piston ring (8) is externally connected with upper piston (9), and upper piston (9) inner central tube is externally connected with fluid cylinder (10), forms hydraulic cavities one (11) between upper piston ring (8), upper piston (9) and last fluid cylinder (10), central tube; The lower end of upper piston (9) is connected with lower piston ring (12); Lower piston ring (12) is externally connected with lower piston (13); Lower piston (13) inner central tube is externally connected with down fluid cylinder (14), forms hydraulic cavities two (15) between lower piston ring (12), lower piston (13) and following fluid cylinder (14), central tube; Offer the inlet opening one (16) and the inlet opening two (17) that are communicated with hydraulic cavities one (11) and hydraulic cavities two (15) respectively on the central tube.
2. double-cylinder hydraulic packer according to claim 1 is characterized in that: said packing element (5) is divided into 2 to 4 sections, is provided with gasket ring (18) between per two sections packing elements (5).
3. double-cylinder hydraulic packer according to claim 1 is characterized in that: said central tube is divided into upper and lower two sections, and upper center tube (19) and lower center tube (20) connect with thread forms through last fluid cylinder (10).
4. double-cylinder hydraulic packer according to claim 1 is characterized in that: said upper piston ring (8) is provided with backing-up screw (21) with the junction of lower rubber cylinder seat (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110152375 CN102817577A (en) | 2011-06-08 | 2011-06-08 | Double-cylinder hydraulic packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110152375 CN102817577A (en) | 2011-06-08 | 2011-06-08 | Double-cylinder hydraulic packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102817577A true CN102817577A (en) | 2012-12-12 |
Family
ID=47301979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110152375 Pending CN102817577A (en) | 2011-06-08 | 2011-06-08 | Double-cylinder hydraulic packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102817577A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251127A (en) * | 2014-09-15 | 2014-12-31 | 宝鸡市赛孚石油机械有限公司 | Controllable hydraulic packer |
| CN111734339A (en) * | 2020-07-01 | 2020-10-02 | 荆州市赛瑞能源技术有限公司 | Hydraulic retrievable packer with large drift diameter |
-
2011
- 2011-06-08 CN CN 201110152375 patent/CN102817577A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251127A (en) * | 2014-09-15 | 2014-12-31 | 宝鸡市赛孚石油机械有限公司 | Controllable hydraulic packer |
| CN104251127B (en) * | 2014-09-15 | 2016-08-31 | 宝鸡市赛孚石油机械有限公司 | Controlled hydraulic formula packer |
| CN111734339A (en) * | 2020-07-01 | 2020-10-02 | 荆州市赛瑞能源技术有限公司 | Hydraulic retrievable packer with large drift diameter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121212 |