CN2429629Y - Vapor filling packer - Google Patents
Vapor filling packer Download PDFInfo
- Publication number
- CN2429629Y CN2429629Y CN 00209117 CN00209117U CN2429629Y CN 2429629 Y CN2429629 Y CN 2429629Y CN 00209117 CN00209117 CN 00209117 CN 00209117 U CN00209117 U CN 00209117U CN 2429629 Y CN2429629 Y CN 2429629Y
- Authority
- CN
- China
- Prior art keywords
- packing element
- elastic element
- pressure
- main body
- high temperature
- 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
Links
Abstract
The utility model relates to a vapor filling packer, which is a sealing device for the annular space of a petroleum casing pipe and the annular space of a heat insulating pipe and mainly solves the problems of complicated operation, bad sealing effect, difficult unsealing, no repeated use, etc. existing in the present device. The vapor filling packer is composed of a main body (1), a prestressing high temperature resistant elastic element (2), a high temperature resistant rubber barrel (3), and a bearing sleeve (4) which are in definite sequential connection. The utility model is mainly characterized in that the elastic element is in a shape of a compression spring or a plate spring. Definite external forces are exerted to compress the elastic element to a definite height, finally the elastic element is solidified and shaped, and then the elastic element is orderly installed between the main body and the rubber barrel.
Description
The utility model Vapor filling packer is that petroleum casing pipe and the instlated tubular annular space sealing device that uses in the steam operation annotated in a kind of petroleum industry thickened oil recovery.
Annotate petroleum casing pipe and the instlated tubular annular space sealing device that steam adopts in the petroleum industry thickened oil recovery at present, two kinds of machinery and chemical equations are arranged, these two kinds of forms are existing the making difficulty in varying degrees, the cost height, complicated operation, sealing effectiveness is poor, problems such as can not reuse.
The utility model purpose provides a kind of simple for production, and cost is low, flexible operation, and good sealing effect, deblocking is the reusable high temperature resistant stress-type Vapor filling packer that gives through simplified overhauling voluntarily.
The purpose of this utility model is to realize like this.Be provided with in the device and give the high temperature resistant flexible member of stress (hereinafter to be referred as elastic component), high temperature resistant packing element (hereinafter to be referred as packing element).When the operation of thickened oil recovery notes steam begins, temperature in the instlated tubular raises gradually, when the steam by this device meets the requirements of pressure, during temperature, elastic component recovers gradually that it is former flexible, produces radial load in this process, drives the packing element radial dilatation, the temperature that requiring of packing element in addition, the pressure effect produces viscoplasticity down, and the certain pressure reduction of the inside and outside wall of packing element generation, thereby realizes the radial dilatation distortion of packing element, when its dilatating and deformable arrives to a certain degree, even instlated tubular and sleeve pipe annular space reach sealing state, stop the pressure in the instlated tubular when annotating steam, when temperature dropped to a certain extent, this installed deblocking voluntarily.
Owing to adopt technique scheme, make that the notes steam operation of thickened oil recovery is more reliable, economy.
Below in conjunction with drawings and Examples, the utility model is further specified, accompanying drawing is longitudinal part view (1) main body of the utility model embodiment, (2) elastic component, (3) packing element, (4) pressure-bearing sleeve
Main body (1): the upper end is connected with instlated tubular, the lower end is connected with oil pipe, its effect is that elastic component and packing element are installed, the utility model is connected in the operation of filling steam, and its top has 10-46 hole to communicate with the packing element inner chamber, and play increase packing element chamber pressure and make its pressure balance, elastic component (2): its effect is in annotating steam process, in the regular hour, elastic component can produce enough radial loads when the gas pressure temperature reached certain value.Packing element (3): when the gas by device reaches certain pressure and temp, packing element produces viscoplasticity, under driving, the radial load of elastic component and gas pressure produce the radial dilatation distortion, make the outer wall of packing element be close to the petroleum casing pipe inwall when being deformed to the degree of requirement, thereby realize the sealing that petroleum casing pipe and instlated tubular annular space are located at the two ends of packing element.Pressure-bearing sleeve (4) is installed in the high-pressure side of packing element, makes packing element can bear the pressure of defined and is not destroyed.When gas injection stops, when the temperature at device place dropped to required value, packing element lost the viscoplasticity hardening, and its expansionary force to petroleum casing pipe also disappears, and stopped expansion, also just reached deblocking voluntarily.
Claims (1)
1. the utility model Vapor filling packer, be used for the petroleum industry thickened oil recovery and annotate the steam operation, be by main body (1), give the high temperature resistant flexible member of stress (2), high temperature resistant packing element (3), pressure-bearing sleeve (4), connect and compose Deng by assemble sequence, it is characterized in that: main body (1), be garden post hollow body, upper and lower side is provided with inside and outside petroleum oil screw thread, its middle part is offered 10-46 hole and is communicated with the packing element inner chamber, flexible member (2), be compression spring shape or springs shape, be compressed to desired height, make its generation give stress, with low-temperature alloy or the solid moulding of gelling, pressure-bearing sleeve (4), be the garden tubular, its thin-walled end is installed in the high-pressure side of packing element by the mouth of axially evenly offering 8-48 certain-length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00209117 CN2429629Y (en) | 2000-04-12 | 2000-04-12 | Vapor filling packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00209117 CN2429629Y (en) | 2000-04-12 | 2000-04-12 | Vapor filling packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2429629Y true CN2429629Y (en) | 2001-05-09 |
Family
ID=33576311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00209117 Expired - Fee Related CN2429629Y (en) | 2000-04-12 | 2000-04-12 | Vapor filling packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2429629Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131800A (en) * | 2014-07-18 | 2014-11-05 | 中国海洋石油总公司 | Thermal production well annulus safety control tool |
-
2000
- 2000-04-12 CN CN 00209117 patent/CN2429629Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131800A (en) * | 2014-07-18 | 2014-11-05 | 中国海洋石油总公司 | Thermal production well annulus safety control tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| FG1K | Grant of utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |