CN2455925Y - Mechanical double-anchoring packer - Google Patents
Mechanical double-anchoring packer Download PDFInfo
- Publication number
- CN2455925Y CN2455925Y CN 00257040 CN00257040U CN2455925Y CN 2455925 Y CN2455925 Y CN 2455925Y CN 00257040 CN00257040 CN 00257040 CN 00257040 U CN00257040 U CN 00257040U CN 2455925 Y CN2455925 Y CN 2455925Y
- Authority
- CN
- China
- Prior art keywords
- packer
- anchoring
- sealing
- anchor
- mechanical double
- 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
- 238000004873 anchoring Methods 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 241000935974 Paralichthys dentatus Species 0.000 claims abstract description 10
- 230000006835 compression Effects 0.000 claims abstract description 5
- 238000007906 compression Methods 0.000 claims abstract description 5
- 238000012856 packing Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 230000002457 bidirectional effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 239000004576 sand Substances 0.000 abstract 1
- 239000003129 oil well Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000009671 shengli Substances 0.000 description 1
Images
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- Earth Drilling (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a mechanical type dual-anchoring packer, it has righting mechanism, sealing mechanism, seat seal mechanism, deblocking mechanism and upper and lower anchoring mechanism, and upper portion anchoring mechanism mainly comprises the anchor body, spring, fluke, layering and sealing washer. The double anchoring structure can enable the packer to bear bidirectional pressure difference. The spiral compression spring is arranged in the sealing rubber sleeve of the sealing mechanism, so that the packer can bear high pressure difference, and meanwhile, the rubber sleeve is recovered when deblocking is facilitated. The utility model discloses can be used to production operations such as water exploration, water shutoff, oil recovery, but also can be used to technologies such as sand control, fracturing.
Description
The utility model relates to packer, relates in particular to a kind of mechanical double anchoring packer that can bear bidirectional pressure difference and High Pressure Difference.
Present mechanical packer be mechanical block envelope, on carry the unidirectional anchoring packer of deblocking, can be used for the operation such as oil recovery, water detection, water blockoff of general oil well, but it is owing to be unidirectional grappling, easily produce the tubing string play when in the higher oil well of casing pressure, using, cause the not tight even failure of seat envelope, especially when being applied to fracturing work, because the packing element bearing capacity is low, easier generation seat envelope is not tight, causes problems such as pressing crack construction failure.
The purpose of this utility model provides a kind of deficiency and shortcoming that can overcome and avoid above-mentioned prior art to exist, and has bidirectionally anchoring, can bear the mechanical double anchoring packer of High Pressure Difference.
The purpose of this utility model reaches like this:
Comprise righting mechanism, sealing mechanism, setting mechanism, separate the mechanical double anchoring packer of sealing mechanism and bottom anchor mechanism, also have the top anchor mechanism simultaneously, it comprises anchor body, spring, anchor fluke, press strip and sealing ring.There is the metal reinforcement spring packing element inside.
The purpose of this utility model can also reach by following measure:
The metallic framework that installs in packing element is a spirality compression spring, and it is from beginning to end, and device is in inside, packing element two ends.The anchor body is a cylindrical tubular structure, on its body groove is arranged, and anchor fluke is installed in the groove.
Description of drawings of the present utility model is as follows:
Accompanying drawing is an example structure sectional plan view of the present utility model.
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in the figure, anchor body 1 is the cylindrical tube rod structure, is connected with central tube 20 1 ends.On the anchor body 1 circular trough is arranged, anchor fluke 3 is installed in the circular trough, and press strip 4 compresses anchor fluke 3, and sealing ring 5 is contained on the anchor fluke.Between cone 10 and anchor body 1, there is packing element 8,9 to be sleeved on the central tube 20, spirality compression spring 7 is equipped with in inside, packing element two ends.All the other slips 11, slips holder 12, sheath 13, lock ball 14, the parts such as cover 15, lock ball seat 16, centralizer body 17, spring 18 and track pin 19 of blocking are installed on the central tube 20 successively, and lower contact 21 is connected in the other end of central tube 20.
When going into the well, track pin 19 is in short track, and when packer arrived the precalculated position down, the upper lifting pipe post was transferred tubing string then, and track pin 19 is changed to long track, and bottom slips 11 is opened, and is stuck on the casing wall, and compression packing element 8,9 is finished the seat envelope.During oil well production, tubing pressure stretches out anchor fluke 3, is stuck on the internal surface of sleeve pipe, and the grappling tubing string is finished bidirectionally anchoring.When oil well stopped to produce, anchor fluke was regained, and removed the top grappling; During deblocking, as long as the upper lifting pipe post, slips 12 resets, and packing element restores, the packer deblocking.Easy and simple to handle, reliable operation.
The utility model is 20 wells on probation in the fracturing work of the above deep-well of Shengli Oil Field 3000m, and frac pressure reaches 40MPa, can reach all that the seat envelope is reliable, deblocking is smooth.
The utility model has the following advantages compared with prior art:
1. bidirectionally anchoring has been avoided altering on the tubing string, setting not tight shortcoming;
2. bear High Pressure Difference, can carry out the fracturing technology operation of oil-water well;
3. can bear bidirectional pressure difference, guarantee production and the job success ratio of oil-water well.
Claims (4)
1. mechanical double anchoring packer, comprise righting mechanism, sealing mechanism, seat sealing mechanism, bottom anchor mechanism reconciliation sealing mechanism, it is characterized in that also having the top anchor mechanism, it comprises anchor body (1), spring (2), anchor fluke (3), press strip (4) and sealing ring (5), and there is metallic framework (7) packing element (8,9) inside.
2. mechanical double anchoring packer according to claim 1 is characterized in that metallic framework (7) is spirality compression spring.
3. mechanical double anchoring packer according to claim 1 and 2 is characterized in that metallic framework (7) device in the inside, two ends of packing element (8,9), and it is from beginning to end.
4. mechanical double anchoring packer according to claim 1 is characterized in that anchor body (1) is cylindrical tubular structure, and groove is arranged on it, and anchor fluke (3) is installed wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00257040 CN2455925Y (en) | 2000-12-11 | 2000-12-11 | Mechanical double-anchoring packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00257040 CN2455925Y (en) | 2000-12-11 | 2000-12-11 | Mechanical double-anchoring packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2455925Y true CN2455925Y (en) | 2001-10-24 |
Family
ID=33613633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00257040 Expired - Fee Related CN2455925Y (en) | 2000-12-11 | 2000-12-11 | Mechanical double-anchoring packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2455925Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867159A (en) * | 2012-12-13 | 2014-06-18 | 中国石油化工股份有限公司 | Integrated mechanical clamp seal type packer of pump seal and method for preventing tubular column from being bent |
| CN106246134A (en) * | 2016-08-30 | 2016-12-21 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of High Temperature High Pressure retrievable formation testing packer |
| CN109296334A (en) * | 2018-10-29 | 2019-02-01 | 邓晓亮 | High pressure Multipurpose well lower sealing device resistant to high temperatures |
| CN111441739A (en) * | 2020-04-30 | 2020-07-24 | 大庆宏升石油机械设备制造有限公司 | Mechanical compression type tubular column switch type packer |
-
2000
- 2000-12-11 CN CN 00257040 patent/CN2455925Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867159A (en) * | 2012-12-13 | 2014-06-18 | 中国石油化工股份有限公司 | Integrated mechanical clamp seal type packer of pump seal and method for preventing tubular column from being bent |
| CN103867159B (en) * | 2012-12-13 | 2016-08-10 | 中国石油化工股份有限公司 | A kind of pump envelope one machinery card envelope formula packer and the method preventing drilling pipe bending thereof |
| CN106246134A (en) * | 2016-08-30 | 2016-12-21 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of High Temperature High Pressure retrievable formation testing packer |
| CN109296334A (en) * | 2018-10-29 | 2019-02-01 | 邓晓亮 | High pressure Multipurpose well lower sealing device resistant to high temperatures |
| CN111441739A (en) * | 2020-04-30 | 2020-07-24 | 大庆宏升石油机械设备制造有限公司 | Mechanical compression type tubular column switch type packer |
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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 |