CN2923989Y - Leather-cup butt-fitting, clamp span adjustable, self-packing type packer for oil and gas field - Google Patents
Leather-cup butt-fitting, clamp span adjustable, self-packing type packer for oil and gas field Download PDFInfo
- Publication number
- CN2923989Y CN2923989Y CN 200520129829 CN200520129829U CN2923989Y CN 2923989 Y CN2923989 Y CN 2923989Y CN 200520129829 CN200520129829 CN 200520129829 CN 200520129829 U CN200520129829 U CN 200520129829U CN 2923989 Y CN2923989 Y CN 2923989Y
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- center tube
- cup
- packer
- packing element
- self
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Abstract
An opposite-cup, scale-adjustable self-sealing packer applied to oil and gas fields of petroleum exploration includes an upper cup-type rubber 2, an adjustment short segment 4, a lower cup-type rubber 6, etc. An upper central pipe 3 is connected with a lower central pipe 5 by the adjustment segment 4. The upper cup-type rubber 2 is arranged on the upper central pipe 3. The lower cup-type rubber 6 is arranged on the lower central pipe 5. A side-draining hole 8 arranged at the center of the device ensures the draining of fluid of other layer segments during injecting to the objective layer. The interval of the opposite-cup rubbers can be neatly adjusted according to the thickness of the packing layers. The side draining structure ensures the protection of the self-sealing rubber during the input and output of the packer.
Description
Technical field
The utility model relate to a kind of oil oil gas field a kind of oil gas field in recovering the oil with leather cup to dress, card apart from adjustable self-packing packer.
Background technology
At present, the packer that use in the oil field is very many, and form of structure also is varied, but in various form of structure, all they can not realize the production requirement of two different pressures intervals, and can not bear High Pressure Difference between two groups of packing elements.
Summary of the invention
The purpose of this utility model is to provide a kind of design to have two groups to dress bowl formula packing element, can bear from operting differential pressure up and down; The bypass flow channel structure of design helps making the not pressure difference effect of self-sealing packing element when packer is gone into well and tripped out, thereby helps protecting packing element, conveniently removes simultaneously; Can adjust flexibly adorning two groups of packing element spacings; Can realize to thin, interlayer (oil gas field of 〉=0.5m) card envelope production requirement with leather cup to dress, card apart from adjustable self-packing packer.
The utility model is achieved in that and comprises top connection 1, upward leather cup formula packing element 2, upper center tube 3, adjustment pipe nipple 4, lower center tube 5, down cup formula packing element 6, lower contact 7, top connection 1 is connected with upper center tube 3, lower contact 7 is connected with lower center tube 5, upper center tube 3 is connected by adjusting pipe nipple 4 with lower center tube 5, leather cup formula packing element 2 is housed on the upper center tube 3, down cup formula packing element 6 is housed on the lower center tube 5, and the middle part of this device is provided with bypass flow channel 8.
Adjust pipe nipple 4 and have eyelet.
Should be suitable for and novelly can be applicable to the acidifying of choosing layer, look for scurry, oil well card envelope completion measure operation.
1, packer performance parameter and indexes:
1). length overall: adjust packer length according to the individual well job requirements;
2). maximum rigid body external diameter: 94mm;
3) minimum rigid body internal diameter: 40mm
4). operating pressure :≤40MPa;
5). connected mode: tubing round thread.
2, compare with common self-packing packer (seeing accompanying drawing 3), it has following characteristics:
1), this is suitable for novel packer design has two groups to a dress bowl formula packing element, can bear from operting differential pressure up and down;
2), this bypass flow channel structure that is suitable for novel packer design helps making the not pressure difference effect of self-sealing packing element when packer is gone into well and tripped out, thereby help protecting packing element, conveniently remove simultaneously;
3), this is suitable for and novelly can adjusts flexibly adorning two groups of packing element spacings;
4), this is suitable for novel packer and can realizes (〉=0.5m) the card envelope production requirement of thin, interlayer.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is for adjusting the structural representation of pipe nipple 4.
The specific embodiment
Structure of the present utility model as shown in Figure 1, be contained in upper center tube 3 respectively, last leather cup formula packing element 2 on the lower center tube 5, down cup formula packing element 6 seals corresponding interval, this packer has the bypass flow channel 8 of a 6--10mm, with leather cup formula packing element 2 on the packer, down cup formula packing element 6 is linked up up and down, upper center tube 3, there is the adjustment pipe nipple 4 (as shown in Figure 2) of eye with holes to link to each other between the lower center tube 5, make it and dress packing element packing section is communicated with, last leather cup formula packing element 2, spacing between 6 liang of groups of down cup formula packing element packing element can be adjusted flexibly, can realize the production requirement of two different pressures intervals.
Big bypass flow channel solved common from sealed packer be difficult for into well with pose a difficult problem, if adjust the sealing of pipe nipple 4 holes, can realize to different interval cards seal, production requirement.When injecting, inject fluid and can not flow into other layer by adjusting 4 pairs of target zones of pipe nipple; Simultaneously guarantee that again other fluid passes implanted layer.
Claims (4)
1, a kind of oil gas field with leather cup to the dress, card is apart from adjustable self-packing packer, comprise top connection (1), last leather cup formula packing element (2), upper center tube (3), adjust pipe nipple (4), lower center tube (5), down cup formula packing element (6), lower contact (7), top connection (1) is connected with upper center tube (3), lower contact (7) is connected with lower center tube (5), it is characterized in that: upper center tube (3) is connected by adjusting pipe nipple (4) with lower center tube (5), leather cup formula packing element (2) is housed on the upper center tube (3), down cup formula packing element (6) is housed on the lower center tube (5), and the middle part of this device is provided with bypass flow channel (8).
2, a kind of oil gas field according to claim 1, is characterized in that: the upper and lower upper and lower one group of down cup formula packing element (6) that is equipped with respectively that leather cup formula packing element (2) on a group, lower center tube (5) are housed respectively of upper center tube (3) dress, the adjustable self-packing packer of card distance with leather cup.
3, a kind of oil gas field according to claim 1, is characterized in that: adjust pipe nipple (4) and have eyelet dress, the adjustable self-packing packer of card distance with leather cup.
4, to dress, the adjustable self-packing packer of card distance, it is characterized in that: bypass flow channel (8) length is 6--10mm to a kind of oil gas field according to claim 1 with leather cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520129829 CN2923989Y (en) | 2005-10-18 | 2005-10-18 | Leather-cup butt-fitting, clamp span adjustable, self-packing type packer for oil and gas field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520129829 CN2923989Y (en) | 2005-10-18 | 2005-10-18 | Leather-cup butt-fitting, clamp span adjustable, self-packing type packer for oil and gas field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2923989Y true CN2923989Y (en) | 2007-07-18 |
Family
ID=38260421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520129829 Expired - Fee Related CN2923989Y (en) | 2005-10-18 | 2005-10-18 | Leather-cup butt-fitting, clamp span adjustable, self-packing type packer for oil and gas field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2923989Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2707314C1 (en) * | 2018-12-29 | 2019-11-26 | Иван Соломонович Пятов | Cup double-side packer |
| RU2730146C1 (en) * | 2019-11-13 | 2020-08-19 | Симойл Пте. Лтд. | Axial-action cup packer |
| RU207559U1 (en) * | 2021-08-12 | 2021-11-02 | Общество с ограниченной ответственностью "Центр образования, науки и культуры имени И.М. Губкина" (ООО "ЦОНиК им. И.М. Губкина") | Packer for pipeless operation of oil wells with a borehole pump |
| RU209208U1 (en) * | 2021-09-29 | 2022-02-07 | Общество с ограниченной ответственностью "Центр образования, науки и культуры имени И.М. Губкина" (ООО "ЦОНиК им. И.К. Губкина") | Downhole sealing device |
-
2005
- 2005-10-18 CN CN 200520129829 patent/CN2923989Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2707314C1 (en) * | 2018-12-29 | 2019-11-26 | Иван Соломонович Пятов | Cup double-side packer |
| RU2730146C1 (en) * | 2019-11-13 | 2020-08-19 | Симойл Пте. Лтд. | Axial-action cup packer |
| RU207559U1 (en) * | 2021-08-12 | 2021-11-02 | Общество с ограниченной ответственностью "Центр образования, науки и культуры имени И.М. Губкина" (ООО "ЦОНиК им. И.М. Губкина") | Packer for pipeless operation of oil wells with a borehole pump |
| RU209208U1 (en) * | 2021-09-29 | 2022-02-07 | Общество с ограниченной ответственностью "Центр образования, науки и культуры имени И.М. Губкина" (ООО "ЦОНиК им. И.К. Губкина") | Downhole sealing device |
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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: 20070718 Termination date: 20111018 |