CN2443143Y - Fracturing packer - Google Patents
Fracturing packer Download PDFInfo
- Publication number
- CN2443143Y CN2443143Y CN 00215955 CN00215955U CN2443143Y CN 2443143 Y CN2443143 Y CN 2443143Y CN 00215955 CN00215955 CN 00215955 CN 00215955 U CN00215955 U CN 00215955U CN 2443143 Y CN2443143 Y CN 2443143Y
- Authority
- CN
- China
- Prior art keywords
- self
- center tube
- leather cup
- seal rubber
- rubber 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
Links
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- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The utility model discloses a fracturing packer, which comprises an upper joint (1), a hydraulic anchor body (2), a sand prevention pipe (3), a lock ring (4), a sealing rubber cylinder (5), an upper center pipe (6), a self-seal rubber cup seat (7), a self-seal rubber cup (8), a ball seat (12), a pin (13) and a lower center pipe (14). A sliding sleeve (11) and a compressing sleeve (10) are arranged on the lower center pipe (14), the self-seal rubber cup (8) can be compressed and inserted into the compressing sleeve (10), and the self-seal rubber cup has no damage in the process of operating and taking off and can be used repeatedly. A liquid inflow hole (9) is arranged at a corresponding part position at the inner cavity of the self-seal rubber cup of the upper center pipe (6), the pressing fluid can be acted directly on the self-seal rubber cup, and the sealing performance of the self-seal rubber cup is enhanced.
Description
The utility model relates to packer, relates in particular to a kind of oil gas water well special operation pressure break packer.
At present, the on-the-spot pressure break packer that uses of oil exploitation, its primary structure is that the hydraulic compressor structure combines with sealing mechanism, its objective is the oil jacket annular space of packing well, carries out the special operation of well, as pressure break, acidifying etc.The external diameter that is contained in the self-styled leather cup on the central tube but the packer of said structure exists is in the nature extended configuration greater than whole packer external surface.In the use of going into the well, often bad by the well head card, or damaged by sleeve friction, the result causes the seat envelope not tight, causes the job execution failure, causes great economic loss.Also make the packing element lost of life simultaneously, can not reuse, cause waste, reduced the service efficiency of packer, improved the shortcoming or the deficiency of cost of production etc.
The purpose of this utility model provides a kind of pressure break packer, shortcoming or deficiency that it overcomes or has avoided existing in the above-mentioned prior art, and have packer set rapidly, tight, advantage such as screens is accurate, efficient is high, long service life and self-styled leather cup can be reused.
The purpose of this utility model reaches like this:
On the lower center tube of the pressure break packer that comprises top connection, hydraulic anchor, anti-sandpipe, retaining ring, cartridge, upper and lower central tube, self-styled glue tube base, self-styled leather cup, ball seat and pin, a sliding sleeve is installed and is made self-styled leather cup compression and hide the wedging ring of going into, make the external diameter of self-styled leather cup exposed portions serve equal the maximum outside diameter of packer rigid body.On the upper center tube of self-styled leather cup inner chamber relative position, the feed liquor duct is arranged, can make the band press liquid act directly on the inner chamber of self-styled leather cup.
The purpose of this utility model can also reach by following measure:
Wedging ring is a bowl structure, is installed on the sliding sleeve.Sliding sleeve is a tubular structure, and the one end has internal and external screw thread, is installed on the lower center tube.Pin passes sliding sleeve and lower center tube, is screwed on the ball seat that is positioned at the lower center tube inwall.Open on the relative upper center tube of self-styled leather cup inner chamber in the feed liquor duct, and liquid with pressure can act directly on the inner chamber of self-styled leather cup, has improved the sealing performance of self-styled leather cup and casing wall, guarantees finishing smoothly of pressing crack construction operation.
The drawing of accompanying drawing is described as follows:
Accompanying drawing is an embodiment sectional plan view of the present utility model.This figure is simultaneously as Figure of abstract of the present utility model.
The utility model elaborates below in conjunction with accompanying drawing:
As shown in drawings, hydraulic anchor anchor body one end connects top connection 1 and anti-sandpipe 3, and the other end links to each other with upper center tube 6.Retaining ring 4, cartridge 5 and self-styled leather cup seat 7 and self-styled leather cup 8 are sleeved on the upper center tube 6 successively.Lower center tube 14 is connected with upper center tube 6; sliding sleeve 11 is installed on the lower center tube 14; connect wedging ring 10 on it; by a special tool, the compression of bowl end parts, the Tibetan of self-styled leather cup are gone in this wedging ring 10, the external diameter of self-styled leather cup exposed portions serve is equated with the maximum outside diameter of packer rigid body; like this; just can protect self-styled leather cup injury-free in the process of going into the well safely, guarantee its sealing performance, guarantee carrying out smoothly of job executions such as pressure break.Self-styled leather cup can also be reused simultaneously, has prolonged the application life of packer.Upper center tube 6 has liquid flow hole road 9 over against self-styled leather cup 8 inner chamber places, it can make the liquid of pressurization act directly on the self-styled leather cup, has improved the packing ability of self-styled leather cup greatly, is expressed as four holes of symmetry among the figure, can certainly be more or less, but minimumly can not be less than 1.Pin 13 passes the groove of lower center tube 14 by sliding sleeve 11, is screwed on the ball seat 12 that is located in lower center tube 14 inwalls.When hydraulic pressure reached 13～15MPa, ball seat 12 was cut off pin 13, and sliding sleeve 11 moves down with self-styled leather cup 8 with wedging ring 10 and separates suddenly, and self-styled leather cup expands under hydraulic action at once simultaneously, effectively seals oil casing annular space, guarantees that its envelope is perfectly safe.
Proppant 50m is annotated in the utility model test in the massive hydraulic fracturing construction of Shengli Oil Field 3000m deep-well
3, pump pressure 50～80MPa, seat envelope success rate 100%, self-styled leather cup removes the seat serviceability rate 100% of being honored as a queen.
The utility model has the following advantages:
1. adopt wedging ring to protect self-styled leather cup injury-free, in the service life of having improved packer, fall Low production cost;
2. self-styled leather cup directly is subjected to hydraulic action, has greatly improved sealing property, has guaranteed to construct successfully Rate has been saved investment;
3. easy and simple to handle, use reliable and secure.
Claims (4)
1. pressure break packer, comprise top connection (1), hydraulic anchor anchor body (2), anti-sandpipe (3), retaining ring (4), cartridge (5), upper center tube (6), self-styled leather cup seat (7), self-styled leather cup (8), ball seat (12), pin (13) and lower center tube (14), it is characterized in that going up the wedging ring (10) of a sliding sleeve (11) being installed and self-styled leather cup (8) compression Tibetan being gone into, on the relative upper center tube (6) of self-styled leather cup (8) inner chamber, feed liquor duct (9) is arranged at lower center tube (14).
2. pressure break packer according to claim 1 is characterized in that wedging ring (10) is bowl structure, is installed on the sliding sleeve (11).
3. pressure break packer according to claim 1 and 2 is characterized in that sliding sleeve (11) is a tubular structure, and the one end has internal and external threads, is installed on the lower center tube (14), and pin (13) passes sliding sleeve (11) and lower center tube (14) is screwed on the ball seat (12).
4. pressure break packer according to claim 1 is characterized in that the inner chamber opposite position of the last self-styled leather cup (8) of upper center tube (6) has feed liquor duct (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00215955 CN2443143Y (en) | 2000-08-17 | 2000-08-17 | Fracturing packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00215955 CN2443143Y (en) | 2000-08-17 | 2000-08-17 | Fracturing packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2443143Y true CN2443143Y (en) | 2001-08-15 |
Family
ID=33581777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00215955 Expired - Fee Related CN2443143Y (en) | 2000-08-17 | 2000-08-17 | Fracturing packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2443143Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278101A (en) * | 2011-08-31 | 2011-12-14 | 中国石油化工股份有限公司 | Subdivided layer watered oil extraction pipe column |
| CN101328799B (en) * | 2008-07-11 | 2013-03-13 | 武汉亿斯达工具有限公司 | Sand prevention clamp sand spraying device and its use method |
| WO2014131141A1 (en) * | 2013-02-28 | 2014-09-04 | 中国石油天然气集团公司 | Hydraulic injection packer tool suitable for multi-stage hydraulic injection fracturing |
| CN104373075B (en) * | 2014-11-07 | 2017-04-12 | 中国石油天然气股份有限公司 | Fracturing packer |
-
2000
- 2000-08-17 CN CN 00215955 patent/CN2443143Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328799B (en) * | 2008-07-11 | 2013-03-13 | 武汉亿斯达工具有限公司 | Sand prevention clamp sand spraying device and its use method |
| CN102278101A (en) * | 2011-08-31 | 2011-12-14 | 中国石油化工股份有限公司 | Subdivided layer watered oil extraction pipe column |
| CN102278101B (en) * | 2011-08-31 | 2014-07-23 | 中国石油化工股份有限公司 | Subdivided layer watered oil extraction pipe column |
| WO2014131141A1 (en) * | 2013-02-28 | 2014-09-04 | 中国石油天然气集团公司 | Hydraulic injection packer tool suitable for multi-stage hydraulic injection fracturing |
| CN104373075B (en) * | 2014-11-07 | 2017-04-12 | 中国石油天然气股份有限公司 | Fracturing 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 |