CN2620080Y - Heat washing well packer - Google Patents
Heat washing well packer Download PDFInfo
- Publication number
- CN2620080Y CN2620080Y CN 03213072 CN03213072U CN2620080Y CN 2620080 Y CN2620080 Y CN 2620080Y CN 03213072 CN03213072 CN 03213072 CN 03213072 U CN03213072 U CN 03213072U CN 2620080 Y CN2620080 Y CN 2620080Y
- Authority
- CN
- China
- Prior art keywords
- ring
- central tube
- support ring
- well packer
- leather cup
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a heat wash well packer. The upper end of a central tube is connected to a top connection linked to a regulation ring screw thread. A caulking ring and a support ring are jacketed on the central tube. A sealing ring is arranged between the support ring and the central tube. A packing cup jacketed on the caulking ring and the support ring is arranged on the packing cup holder. The lower end of the central tube is connected to the bottom connection. A limit ring arranged between the central tube and the bottom connection is fixed on a baffle. A steel ball is arranged on the bottom connection. The utility model is a hot wash well packer with simple structure, easy construction operation, reliable sealing, which plays a role for the oil protection in the heat wash process of oil field wells.
Description
Technical field: the utility model relates to a kind of hot clean-up well packer.
Background technology: at present, oil field development is to the middle and later periods, and oil-well strata pressure reduces, and measure increases oil and become that the oil field is requisite to increase oily means, and the protection oil reservoir to avoid polluting should be the prerequisite guaranteed conditions of all oil well measures.In pumpingh well pump detection and workover and clean-out service, working fluid is easy to enter the stratum oil reservoir is caused damage, and reduces the oil reservoir percolation ability, for the saturating oil reservoir of high pressure low permeability, even oil reservoir can be killed, and influences crude output.In addition, some high content of wax and heavy oil wells need be carried out regular heat and be washed, because pressure is higher in the washing well process, flushing fluid is easy to enter the stratum, drainage period was long after both having caused well-flushing, and crude output reduces, moisture rising, more serious is because the part flushing fluid enters the stratum, will produce serious pollution and injury to the stratum.
Summary of the invention: in order to solve the problem of above-mentioned existence, it is a kind of simple in structure that the utility model provides, and constructing operation is convenient, and sealing is reliable, washes the hot clean-up well packer that in the process oil reservoir is had protective effect in the heat of oil field well.
Concrete technical scheme is as follows: a kind of hot clean-up well packer, it is characterized in that: the central tube upper end is connected with top connection, top connection and adjustable ring screwed connection, spacer ring and support ring are enclosed within on the central tube, are provided with sealing ring between support ring and central tube, the leather cup body is enclosed within on spacer ring and the support ring, the leather cup body is located on the leather cup seat, and the central tube lower end is connected with lower contact, is provided with baffle ring between central tube and lower contact, baffle ring is fixed on the baffle plate, is provided with steel ball in lower contact.
Compare with prior art; the utility model adopts said structure; the leather cup body has from movable sealing; unidirectional pressure-bearing; the characteristics of anti-wriggling friction; the leather cup body has certain shirt rim, built-in special steel frame, and its external diameter is slightly larger than casing inner diameter; that is to say; be seated in the well with certain interference, flexible skirt is facing to the high pressure direction, and pressure is high more; it is tight more that shirt rim and casing wall paste; so pressure-bearing is high more, rely on the leather cup body to contact the purpose that reaches packing oil jacket annular space with the interference of internal surface of sleeve pipe, the utility model is recognized at high waxy oil well or heavy oil wells and the part low yield low pressure well that is unsuitable for the self energy hot washing process carries out under the pump heat and washes; the packing oil jacket; prevent that flushing fluid from entering the stratum, play the protection oil reservoir preferably, improve oil well heat and wash effect.
Description of drawings: the utility model is described in detail below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present utility model.
The specific embodiment:
As shown in Figure 1, a kind of hot clean-up well packer, central tube 7 upper ends are connected with top connection 1, top connection 1 and adjustable ring 2 screwed connections, spacer ring 3 and support ring 5 are enclosed within on the central tube 7,7 of support ring 5 and central tubes are provided with 8,2 leather cup bodies 4 of sealing ring and are enclosed within respectively on spacer ring 3 and the support ring 5, and leather cup body 4 is located on the leather cup seat 6, central tube 7 lower ends are connected with lower contact 9,9 of central tube 7 and lower contacts are provided with baffle ring 10, and baffle ring 10 is fixed on the baffle plate 11, is provided with steel ball 12 in lower contact 9.
Claims (1)
1, a kind of hot clean-up well packer, it is characterized in that: the central tube upper end is connected with top connection, top connection and adjustable ring screwed connection, spacer ring and support ring are enclosed within on the central tube, are provided with sealing ring between support ring and central tube, the leather cup body is enclosed within on spacer ring and the support ring, the leather cup body is located on the leather cup seat, and the central tube lower end is connected with lower contact, is provided with baffle ring between central tube and lower contact, baffle ring is fixed on the baffle plate, is provided with steel ball in lower contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03213072 CN2620080Y (en) | 2003-05-12 | 2003-05-12 | Heat washing well packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03213072 CN2620080Y (en) | 2003-05-12 | 2003-05-12 | Heat washing well packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2620080Y true CN2620080Y (en) | 2004-06-09 |
Family
ID=34242148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03213072 Expired - Fee Related CN2620080Y (en) | 2003-05-12 | 2003-05-12 | Heat washing well packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2620080Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930734A (en) * | 2015-12-30 | 2017-07-07 | 新疆中核天山铀业有限公司 | A kind of ground-dipping uranium extraction drilling exchangeable filter |
-
2003
- 2003-05-12 CN CN 03213072 patent/CN2620080Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930734A (en) * | 2015-12-30 | 2017-07-07 | 新疆中核天山铀业有限公司 | A kind of ground-dipping uranium extraction drilling exchangeable filter |
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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: 20040609 Termination date: 20110512 |