CN2433389Y - High-reliability anti-sand washing well packer - Google Patents
High-reliability anti-sand washing well packer Download PDFInfo
- Publication number
- CN2433389Y CN2433389Y CN 00208532 CN00208532U CN2433389Y CN 2433389 Y CN2433389 Y CN 2433389Y CN 00208532 CN00208532 CN 00208532 CN 00208532 U CN00208532 U CN 00208532U CN 2433389 Y CN2433389 Y CN 2433389Y
- Authority
- CN
- China
- Prior art keywords
- packing element
- ring
- rubber cylinder
- well packer
- central tube
- 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 discloses an anti-sand washing well packer with high reliability, which solves the problems that the existing washing well packer has unreliable rubber cylinder seal, the sand clamp is easy to appear, the unsealing force is oversize, etc. The utility model is characterized in that the sealing reliability of a rubber cylinder is enhanced by adopting a corrugated rubber cylinder, the function of filtering the sand is achieved by adopting a liquid inlet hole with a small hole diameter, and the position of an unsealing pin is arranged on an upper rubber cylinder. The unsealing force overcomes directly the friction force between the rubber cylinder and a sleeve pipe wall, the unsealing force is reduced, and the construction safety is enhanced. The utility model has the advantages of high reliability, light weight, low cost, etc., and is suitable for the popularization and the use of various oil fields.
Description
The utility model relates to water injection well in oil fields washing well packer, belongs to high reliability sand control card washing well packer.
At present, widely used its packing element of washing well packer in each oil field is drum type brake, and inside and outside wall is the face of cylinder, and packing element occurs packing element easily and is not compacted and the poorly sealed problem of packing element occurs when pressurized contacts with internal surface of sleeve pipe like this; Have its inlet opening of washing well packer now and be the bigger hole of diameter, be generally more than the 15mm, its filter sand adopts copper filter screen filter sand, but because copper filter screen intensity is low fragile, does not often have the filter sand effect, reaches upper and lower piston in the packing element by the sand card thereby cause; Another problem of existing washing well packer is that its deblocking pin is positioned at the packing element below, one side deblocking power will overcome packing element and internal surface of sleeve pipe frictional force when carrying deblocking like this, also to overcome the resistance of transferring elements, cause that to put forward deblocking power excessive, influence working security, on the other hand, since on will drag the up section of packing element when carrying and move, thereby can cause sleeve pipe to produce inner vacuum, will make sleeve pipe produce distortion, influence the water injection well life-span in this displaced segments.
The purpose of this utility model is exactly that a kind of reliable not high reliability sand control card washing well packer of sand card that seals is provided in order to overcome above-mentioned the deficiencies in the prior art.
The purpose of this utility model can reach by the following technical programs: this high reliability sand control card washing well packer, by top connection, lower contact, upper piston, lower piston, adjustable ring, inner central tube, exterior central tube, packing element, seat offset nail, the deblocking pin, the sliding sleeve of jump ring and interior band jump ring groove is formed, be characterized in: in the packing element, outer wall is corrugated, the lower end wall of adjustable ring is provided with the very little inlet opening in dozens of aperture, spacer ring is housed between the packing element, between spacer ring and the exterior central tube sealing ring is housed, be loaded on the deblocking pin outer end that hangs exterior central tube on the adjustable ring and hold out against with sealing-plug and jackscrew, the position of deblocking pin is positioned on the packing element.
The utility model compared with prior art has following advantage: because the inside and outside wall of the utility model packing element is corrugated, thereby when being subjected to compression swelling, can more closely contact with internal surface of sleeve pipe, packing element place footprint pressure increases, the packing element sealing is reliable, also be provided with sealing ring on the spacer ring between the packing element, increased the sealing reliability between packing element inwall and the exterior central tube; The utility model inlet opening adopts dozens of minor diameter eyelet, can directly play the filter sand effect, makes packing element and other each parts avoid the sand card; The deblocking pin is fixed in the adjustable ring end by sealing-plug and jackscrew; its position is on last packing element; on when carrying deblocking; on put forward deblocking power and directly overcome frictional force between packing element and the casing wall; directly cut off the deblocking pin; deblocking power reduces, and the working security height is after the deblocking pin is directly cut off; packing element deblocking immediately can not move by superior displacement; just a meeting makes and produces vacuum in the sleeve pipe, helps protecting the well sleeve pipe, in addition; this kind high reliability sand control card washing well packer construction compactness; weight is greatly reduced, and length shortens dramatically, and is more more convenient than type use in the past.
Accompanying drawing 1 is a structure chart of the present utility model.
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, the utility model is by last, lower contact (1,14), upper piston 3, lower piston 13, adjustable ring 2, inner central tube 5, exterior central tube 9, packing element 7, seat offset nail 11, deblocking pin 6, the sliding sleeve 12 of jump ring 10 and interior band jump ring groove is formed, be characterized in: in the packing element 7, outer wall is corrugated, the lower end wall of adjustable ring 2 is provided with the very little inlet opening in dozens of aperture 4, spacer ring 8 is housed between the packing element 7, between spacer ring 8 and the exterior central tube 9 sealing ring is housed, be loaded on deblocking pin 6 outer ends that hang exterior central tube 9 on the adjustable ring 2 and hold out against with sealing-plug and jackscrew, the position of deblocking pin 6 is positioned on the packing element 7.
Claims (1)
1. high reliability sand control card washing well packer, by last, lower contact (1,14), upper piston (3), lower piston (13), adjustable ring (2), inner central tube (5), exterior central tube (9), packing element (7), seat offset nail (11), deblocking pin (6), the sliding sleeve (12) of jump ring (10) and interior band jump ring groove is formed, it is characterized in that: in the packing element (7), outer wall is corrugated, the lower end wall of adjustable ring (2) is provided with the very little inlet opening in dozens of aperture (4), spacer ring (8) is housed between the packing element (7), between spacer ring (8) and the exterior central tube (9) sealing ring is housed, be loaded on adjustable ring (2) and upward hold out against with sealing-plug and jackscrew deblocking pin (6) outer end of suspension exterior central tube (9), the position of deblocking pin (6) is positioned on the packing element (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00208532 CN2433389Y (en) | 2000-04-17 | 2000-04-17 | High-reliability anti-sand washing well packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00208532 CN2433389Y (en) | 2000-04-17 | 2000-04-17 | High-reliability anti-sand washing well packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2433389Y true CN2433389Y (en) | 2001-06-06 |
Family
ID=33575879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00208532 Expired - Fee Related CN2433389Y (en) | 2000-04-17 | 2000-04-17 | High-reliability anti-sand washing well packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2433389Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929563A (en) * | 2015-05-27 | 2015-09-23 | 中国石油天然气股份有限公司 | Water injection packer |
| WO2017197517A1 (en) * | 2016-05-17 | 2017-11-23 | Winterhawk Well Abandonment Ltd. | Diagnostic tool for well abandonment tool |
| US11585178B2 (en) | 2018-06-01 | 2023-02-21 | Winterhawk Well Abandonment Ltd. | Casing expander for well abandonment |
| US11634967B2 (en) | 2021-05-31 | 2023-04-25 | Winterhawk Well Abandonment Ltd. | Method for well remediation and repair |
-
2000
- 2000-04-17 CN CN 00208532 patent/CN2433389Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929563A (en) * | 2015-05-27 | 2015-09-23 | 中国石油天然气股份有限公司 | Water injection packer |
| CN104929563B (en) * | 2015-05-27 | 2017-10-17 | 中国石油天然气股份有限公司 | Water injection packer |
| WO2017197517A1 (en) * | 2016-05-17 | 2017-11-23 | Winterhawk Well Abandonment Ltd. | Diagnostic tool for well abandonment tool |
| US11585178B2 (en) | 2018-06-01 | 2023-02-21 | Winterhawk Well Abandonment Ltd. | Casing expander for well abandonment |
| US11634967B2 (en) | 2021-05-31 | 2023-04-25 | Winterhawk Well Abandonment Ltd. | Method for well remediation and repair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or 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 |