CN202081856U - Rubber drum of expanding packer - Google Patents
Rubber drum of expanding packer Download PDFInfo
- Publication number
- CN202081856U CN202081856U CN2011201925285U CN201120192528U CN202081856U CN 202081856 U CN202081856 U CN 202081856U CN 2011201925285 U CN2011201925285 U CN 2011201925285U CN 201120192528 U CN201120192528 U CN 201120192528U CN 202081856 U CN202081856 U CN 202081856U
- Authority
- CN
- China
- Prior art keywords
- packing element
- inner liner
- wall
- fixedly connected
- sebific duct
- 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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Abstract
The utility model relates to a rubber drum of an expanding packer. Two ends of a steel wire mesh are fixedly connected with ring-shaped ferrules; the inner wall of each ferrule is fixedly connected to one end of a lining metal piece; and a rubber pipe is vulcanized on the inner wall and the outer wall of the steel wire mesh, the ferrules and the lining metal pieces. The rubber drum of the expanding packer has the advantages of simple structure, good seat sealing and unsealing effects, and small permanent compression deformation, and can bear higher working pressure and working temperature.
Description
Technical field
The utility model relates to a kind of inflatable packer packing element, belongs to a kind of oil field downhole tool.
Background technology
At present, the oil field generally adopts packer to realize what seat sealed when oil recovery, water filling, fracture acidizing operation.Because inflatable packer is to rely on packing element to expand outwardly the packing oil sets annular space, therefore requires packing element to have bearing capacity preferably.Existing packing element is generally the packing element of sunkening cord, and this kind packing element is complex manufacturing not only, the cost height, and also bearing capacity is lower.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of inflatable packer packing element, this inflatable packer packing element is not only simple in structure, and seat seals, deblocking is effective, and the compression set of packing element is little, can bear higher operating pressure and operating temperature simultaneously.
For overcoming the above problems, concrete technical scheme of the present utility model is as follows: a kind of inflatable packer packing element, and the fixedly connected endless metal hoop in the two ends of gauze wire cloth is at an end of the fixedly connected inner liner metal spare of inwall of ferrule; On the inside and outside wall of gauze wire cloth and ferrule and the inner liner metal spare by the sulfuration process sulfuration on sebific duct.
The inner liner metal spare at two ends stretches out sebific duct respectively, and the excircle of inner liner metal spare is provided with external screw thread.
Described sebific duct is a tubulose, and its outer wall is provided with the boss of transition.
This inflatable packer packing element adopts steel mesh structure, can make whole packing element can bear higher pressure; Adopt two ends that the ferrule structure is set, integral body is more firm during use, seat envelope, deblocking better effects if.
Description of drawings
Fig. 1 is the structural representation of inflatable packer packing element.
The specific embodiment
As shown in Figure 1, a kind of inflatable packer packing element, the fixedly connected endless metal hoop 3 in the two ends of gauze wire cloth 5 is at an end of the fixedly connected inner liner metal spare 2 of the inwall of ferrule 3; On the inside and outside wall of gauze wire cloth and ferrule 3 and the inner liner metal spare 2 by the sulfuration process sulfuration on sebific duct 1.
The inner liner metal spare at two ends 2 stretches out sebific duct 1 respectively, and the excircle of inner liner metal spare 2 is provided with external screw thread 4.
Described sebific duct 1 is a tubulose, and its outer wall is provided with the boss of transition.
During work, charge into gases at high pressure in sebific duct 1, under the effect of gases at high pressure, sebific duct 1 expands, and reaches the purpose of seat envelope.Owing to be provided with gauze wire cloth 5 and ferrule 3 in the sebific duct, so its bearing capacity is better.
Claims (3)
1. inflatable packer packing element is characterized in that: the fixedly connected endless metal hoops in the two ends of gauze wire cloth (5) (3), at an end of the fixedly connected inner liner metal spare of inwall (2) of ferrule (3); Go up by the sulfuration process sulfuration at the inside and outside wall of gauze wire cloth and ferrule (3) and inner liner metal spare (2) and to go up sebific duct (1).
2. inflatable packer packing element as claimed in claim 1 is characterized in that: the inner liner metal spare at two ends (2) stretches out sebific duct (1) respectively, and the excircle of inner liner metal spare (2) is provided with external screw thread (4).
3. inflatable packer packing element as claimed in claim 1 or 2 is characterized in that: described sebific duct (1) is a tubulose, and its outer wall is provided with the boss of transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201925285U CN202081856U (en) | 2011-06-09 | 2011-06-09 | Rubber drum of expanding packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201925285U CN202081856U (en) | 2011-06-09 | 2011-06-09 | Rubber drum of expanding packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202081856U true CN202081856U (en) | 2011-12-21 |
Family
ID=45342492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201925285U Expired - Fee Related CN202081856U (en) | 2011-06-09 | 2011-06-09 | Rubber drum of expanding packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202081856U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894784A (en) * | 2017-03-07 | 2017-06-27 | 中国石油集团渤海钻探工程有限公司 | HTHP packer and heat resisting and pressure resisting packing element |
| CN107100580A (en) * | 2017-04-05 | 2017-08-29 | 中国石油天然气股份有限公司 | A kind of long packing element type and its rubber compounding |
-
2011
- 2011-06-09 CN CN2011201925285U patent/CN202081856U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894784A (en) * | 2017-03-07 | 2017-06-27 | 中国石油集团渤海钻探工程有限公司 | HTHP packer and heat resisting and pressure resisting packing element |
| CN107100580A (en) * | 2017-04-05 | 2017-08-29 | 中国石油天然气股份有限公司 | A kind of long packing element type and its rubber compounding |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20160609 |