CN2453125Y - Water injection packer - Google Patents
Water injection packer Download PDFInfo
- Publication number
- CN2453125Y CN2453125Y CN 00263882 CN00263882U CN2453125Y CN 2453125 Y CN2453125 Y CN 2453125Y CN 00263882 CN00263882 CN 00263882 CN 00263882 U CN00263882 U CN 00263882U CN 2453125 Y CN2453125 Y CN 2453125Y
- Authority
- CN
- China
- Prior art keywords
- central tube
- water
- water injection
- piston
- 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
Links
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a water injection packer. The water injection packer is composed of a center pipe, a sealing mechanism, an outer core pipe and a lower joint. The lower part of the center pipe is connected with the lower joint, a water distribution core is arranged in the center pipe, and the outer side of the center pipe is sheathed in turn with a choked flow ring, a connecting sleeve, the outer core pipe, a rubber cylinder, a lock ring and a pressing sleeve which form two space with the center pipe. Upper part space is provided with a backwashing piston, lower part space is provided with a sealing piston, and the sealing piston is connected with the center pipe through a cutting nail. The utility model has the advantages of simple water injection process and low cost, can meet the special needs of a sleeve damage well, a sleeve pipe well with a minor diameter, etc.
Description
The utility model relates to a kind of water injection packer, belongs to the down-hole kit.
The seperated layer water injection packer that uses at present is the Y341-114 water injection packer, and its layering tubing string is configured to: injection well downhole flow regulator+Y341-114 water injection packer+injection well downhole flow regulator.Because this packer set mode is hydraulic base sealed, after the injection well downhole flow regulator assembly, the mouth of at first on water distributing core, the feigning death base sealed packer of going into the well, after finishing, the seat envelope salvages water distributing core, again throw into ability water filling on the injection well downhole flow regulator by going into the well behind the dosing requirement transposing water nozzle, technology is loaded down with trivial details, and is time-consuming, and prior art can not satisfy the specific (special) requirements of casing damaged well, minor diameter cased well etc. simultaneously.
The purpose of this utility model is exactly the shortcoming that overcomes prior art, and a kind of water injection packer is provided.
The purpose of this utility model is achieved in that water injection packer is by central tube, the seat sealing mechanism, excenter tube, lower contact is formed, the seat sealing mechanism comprises packing element, lock ring, the central tube bottom connects lower contact, central tube top has three holes, two is water nozzle up and down, middle is pressure transmission hole, outside at the upper end water nozzle is with block ring, block ring is located by spring, in the tube of central tube top water distributing core is housed, on water distributing core, have and corresponding hole, three holes of central tube, be with adapter sleeve successively in the outside of central tube, excenter tube, packing element, lock ring, gland, they and central tube are formed two spaces, upper space is equipped with the backwash piston, have the backwash hole on the adapter sleeve, lower space is equipped with seat envelope piston, and seat envelope piston is connected with central tube by shear pin.
The utility model compared with prior art has the following advantages: 1, water injection technology is simple, expense is low; 2, can satisfy the specific (special) requirements of casing damaged well, minor diameter cased well.
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1: water injection packer structural representation;
Among the figure: 1-central tube, 2-water distributing core, 3-spring, 4-block ring, 5-water nozzle,
6-adapter sleeve, 7-backwash piston, 8-exterior central tube, 9-packing element, 10-lock ring,
11-gland, 12-seat envelope piston, 13-shear pin, 14-lower contact;
As shown in Figure 1, water injection packer is by central tube 1, adapter sleeve 6, the seat sealing mechanism, excenter tube 8, gland 10, lower contact 14 is formed, the seat sealing mechanism comprises packing element 9, lock ring 10, central tube 1 bottom connects lower contact 14, central tube 1 top has three holes, two is water nozzle 5 up and down, middle is pressure transmission hole, be with block ring 4 in the outside of upper end water nozzle 5, block ring 4 is equipped with water distributing core 2 by spring 3 location in the central tube 1 top tube, has on water distributing core 2 and corresponding hole, 1 three holes of central tube, outside at central tube 1 is with adapter sleeve 6 successively, excenter tube 8, packing element 9, lock ring 10, gland 11, they and central tube are formed two spaces, and upper space is equipped with backwash piston 7, has the backwash hole on the adapter sleeve 6, lower space is equipped with seat envelope piston 12, and seat envelope piston 12 is connected with central tube 1 by shear pin 13.
The packer that pressure testing is qualified connects oil pipe and goes into the well by the injection allocation requirement water nozzle of packing into, and recoil well head water filling puts in place.When water injection pressure reaches design load, on the present envelope of the pressure effect piston 12, make shear pin 13 and seat envelope piston 12 that relative motion take place, shear pin 13 is cut off, gland 11, seat envelope piston 12 are up, compression packing element 9 makes packing element 9 radial dilatation be close to internal surface of sleeve pipe, and lock ring 10 and gland 11 are realized sealing with this state locking simultaneously.So just, the water injection well packing is become upper and lower two water filling intervals, the water filling by water distributing core 2 top water nozzles 5 acts on the block ring 4, and compression spring 3 is opened top water filling runner, injects water and enters packer top water filling is carried out on the upper strata.Injecting water simultaneously acts on the backwash piston 7, make backwash piston 7 descending, backwash hole on the sealed adapter sleeve 6, inject water enters central tube 1 by water distributing core 2 bottom water nozzles 5 eyelet, arrive the circular passage of central tube 1, backwash piston 7, exterior central tube 8 compositions, following eyelet through gland 11 enters the water layer of making a bet, and water filling is carried out in the bottom, realizes upper and lower two-layer seperated layer water injection.When need are tested, be lowered to have special seal head the flow meter seat in water distributing core 2 on the shoulder, can test, when need transposing water nozzle, be lowered to special-purpose fisher and pull water distributing core 2 out, after water nozzle 5 replacings, directly drop into water filling the well from well head, the automatic under pressure seat of water distributing core 2 is on the shoulder of central tube 1.When the need backwash, inject flushing fluid from the oil jacket annular space, flushing fluid acts on the block ring 4, sealing top waterflood path, the eyelet by adapter sleeve 6 acts on the backwash piston 7 again, makes backwash piston 7 up, sealing top water filling runner, just by the annular space of exterior central tube 8 with central tube 1, the eyelet on gland 11 enters the bottom annular space to flushing fluid again, enters oil pipe through the bottom tubing string more like this, return out well head, finish the anti-flushing well operation.
Claims (1)
1, a kind of water injection packer is by central tube (1), the seat sealing mechanism, excenter tube (8), lower contact (14) is formed, the seat sealing mechanism comprises packing element (9), lock ring (10), central tube (1) bottom connects lower contact (14), it is characterized in that: central tube (1) top has three holes, two is water nozzle (5) up and down, middle is pressure transmission hole, be with block ring (4) in the outside of upper end water nozzle (5), block ring (4) is located by spring (3), in the tube of central tube (1) top water distributing core (2) is housed, on water distributing core (2), have and corresponding hole, (1) three hole of central tube, be with adapter sleeve (6) successively in the outside of central tube (1), packing element (9), excenter tube (8), lock ring (10), gland (11), they and central tube (1) are formed two spaces, upper space is equipped with backwash piston (7), adapter sleeve has the backwash hole on (6), and lower space is equipped with seat envelope piston (12), and seat envelope piston (12) is connected with central tube (1) by shear pin (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00263882 CN2453125Y (en) | 2000-11-28 | 2000-11-28 | Water injection packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00263882 CN2453125Y (en) | 2000-11-28 | 2000-11-28 | Water injection packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2453125Y true CN2453125Y (en) | 2001-10-10 |
Family
ID=33618738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00263882 Expired - Fee Related CN2453125Y (en) | 2000-11-28 | 2000-11-28 | Water injection packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2453125Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337872A (en) * | 2011-09-19 | 2012-02-01 | 中国石油化工股份有限公司 | One-grade three-section integrated water distribution tubular column of horizontal well |
| CN103821479A (en) * | 2014-02-17 | 2014-05-28 | 康庆刚 | Device not pressing oil reservoir during thermal washing of mechanical producing well |
| CN112228001A (en) * | 2020-09-24 | 2021-01-15 | 齐齐哈尔亚盛机械制造有限公司 | Packer with low setting force and low unsetting force |
-
2000
- 2000-11-28 CN CN 00263882 patent/CN2453125Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337872A (en) * | 2011-09-19 | 2012-02-01 | 中国石油化工股份有限公司 | One-grade three-section integrated water distribution tubular column of horizontal well |
| CN103821479A (en) * | 2014-02-17 | 2014-05-28 | 康庆刚 | Device not pressing oil reservoir during thermal washing of mechanical producing well |
| CN103821479B (en) * | 2014-02-17 | 2016-05-18 | 康庆刚 | The device of force feed layer function not while thering is well hot washing |
| CN112228001A (en) * | 2020-09-24 | 2021-01-15 | 齐齐哈尔亚盛机械制造有限公司 | Packer with low setting force and low unsetting force |
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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 |