CN201241658Y - Hydraulic expansion type sleeve inner packer - Google Patents
Hydraulic expansion type sleeve inner packer Download PDFInfo
- Publication number
- CN201241658Y CN201241658Y CNU2008200907451U CN200820090745U CN201241658Y CN 201241658 Y CN201241658 Y CN 201241658Y CN U2008200907451 U CNU2008200907451 U CN U2008200907451U CN 200820090745 U CN200820090745 U CN 200820090745U CN 201241658 Y CN201241658 Y CN 201241658Y
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- ring
- packer
- sealing
- main body
- hydraulic
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Abstract
A hydraulic expansion sleeve internal packer mainly resolves the problems of prior sleeve internal packers applied in indoor channeling detection, such as difficult operation and easy damage of sealing rings, which is characterized in that two sides of an annular boss of a body (1) are respectively provided with a seat seal rubber cylinder (2) having a U-shaped section, a stopper ring (3) and a clip spring (4) are arranged at the outer side of the two seat seal rubber cylinders (2) in turn, the body (1) is provided with a hydraulic channel (5) communicated with the inner ring of the two seat seal rubber cylinders (2), a sealing ring (6) is arranged in the groove on the body (1) and is contacted with the inner ring of the stopper ring (3). The hydraulic expansion sleeve internal packer has good seal effect, simple operation, small size, low weight, indoor application and practicality.
Description
Technical field:
The utility model relates in the oil drilling engineering field indoor testing and scurries packer in the used cover, especially packer in the hydraulic buckling type cover.
Background technology:
Along with Oilfield developing, the oil reservoir reserves are in continuous minimizing.In order to improve recovery ratio, just need constantly research new technology.Research on New need be based on laboratory test, and the quality of shop test equipment is directly connected to the effect of new technology.Shop test equipment is of a great variety, and to adapt to different shop test equipment needs, packer is exactly one of them, manages and outer scurry understanding and considerate condition and test and scurry detection cement sheath waterpower packing ability in the aboveground distance that different testing scurried of lab simulation.Require convenient experimental operation simultaneously, can in sleeve pipe, freely move up and down after the packer pressure release.At present, indoor testing scurried 5 o'clock used half-covering tubes, and external diameter is 139.7 millimeters, and wall thickness is that packer is owing to adopt the self-sealed structure of Y-shaped ring in 7.72 millimeters covers, and this structure one is an operating difficulties, and fashionable need are manually knocked under the packer, poor operability; The 2nd, in the process that packer is lowered to,, influence sealing effectiveness because therefore internal surface of casing and rough might damage sealing ring.Be unfavorable for applying.
The utility model content:
In order to solve existing indoor packer operating difficulties and the flimsy problem of sealing ring in the used cover of scurrying of testing, the utility model provides packer in a kind of hydraulic buckling type cover, packer has good sealing effect in this hydraulic buckling type cover, simple to operation, size is less, weight is lighter, is applicable to in-house operation, simple and practical characteristics.
The technical solution of the utility model is: packer comprises the main body of band operating pressure passage in this hydraulic buckling type cover, it is U font seat sealing tube that main body annular boss both sides are equipped with the cross section respectively, two sealing tube outsides are equipped with baffle ring and jump ring successively, have on the main body with two sealing tubes in the hydraulic channel that communicates of ring, body recess be built-in with baffle ring in the contacted sealing ring of ring.
The utlity model has following beneficial effect: packer is owing to take such scheme in this hydraulic buckling type cover, utilized the cross section to be U font seat sealing tube, manage and outer scurry understanding and considerate condition and test and scurry detection cement sheath waterpower packing ability in the aboveground distance that different testing scurried of lab simulation.Thereby improved sealing effectiveness, packer is lowered to and is simple, convenient, and size is less, and weight is lighter, is applicable to in-house operation, and is simple and practical.Guarantee simultaneously can in sleeve pipe, freely move up and down after this packer pressure release.In the pressure testing process, packing pressure 10 MPas were not leaked in 1 hour, and operating pressure 5 MPas were not fallen in 1 hour.Packer has good sealing effect in this hydraulic buckling type cover thus, and simple to operation, size is less, and weight is lighter, is applicable to in-house operation, simple and practical characteristics.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
1-main body among the figure, 2-seat sealing tube, 3-baffle ring, 4-jump ring, 5-hydraulic channel, 6-sealing ring.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, packer comprises main body 1 in this hydraulic buckling type cover, main body 1 has the operating pressure passage that communicates with liquid-through hole on the sleeve pipe between two parties, main body 1 annular boss both sides are equipped with a sealing tube 2 respectively, seat sealing tube 2 cross sections are the U font, seat sealing tube 2 plays the effect of seat envelope, makes to test to scurry and is implemented; Two sealing tube 2 outsides are equipped with baffle ring 3, and baffle ring 3 outsides are equipped with jump ring 4, and baffle ring 3 and jump ring 4 play the effect of restriction seat sealing tube 2; The hydraulic channel 5 that communicates with ring U-shaped mouth in two sealing tubes 2 is arranged on the main body 1, provide a seal pressure liquid to seat sealing tube 2, make that the seat envelope is implemented by hydraulic channel 5; Main body 1 groove is built-in with and the contacted sealing ring 6 of baffle ring 3 inner ring surfaces, seals.
During actual the use, test to scurry at the lab simulation well and use with existing identical, scurry understanding and considerate condition outside managing and test and scurry in the aboveground distance that different testing scurried of lab simulation, when detecting cement sheath waterpower packing ability, after promptly this packer being lowered into the precalculated position, be associated with two on the packer body and suppress system, two pressure are provided respectively, be i.e. seat seal pressure and operating pressure.In the U-shaped space of seat sealing tube 2, squeeze into a seal pressure by hydraulic channel 5, make it seal (the space of sealing place, sleeve pipe has been reserved the hole of a certain size and quantity) desiring to test the position of scurrying; After the seat envelope, in the space of sealing, squeeze into operating pressure, promptly test and scurry pressure, thereby record the waterpower packing ability of different length cement sheath by the operating pressure passage.Because of having adopted the cross section is U font seat sealing tube 2, utilize the big characteristic of seat sealing tube 2 coefficients of expansion, in the U-shaped space of seat sealing tube 2, squeeze into a seal pressure by hydraulic channel 5, a sealing tube 2 is expanded, reach the purpose of seat envelope, guarantee simultaneously can in sleeve pipe, freely move up and down after this packer pressure release.Thereby improved sealing effectiveness, packer is lowered to and is simple, convenient, and size is less, and weight is lighter, is applicable to in-house operation, and is simple and practical.In the pressure testing process, packing pressure 10 MPas were not leaked in 1 hour, and operating pressure 5 MPas were not fallen in 1 hour.And the big characteristic that bounces back after pressure release makes a sealing tube 2 not fragile.Packer has good sealing effect in this hydraulic buckling type cover thus, and simple to operation, size is less, and weight is lighter, is applicable to in-house operation, simple and practical characteristics.
Claims (1)
1, packer in a kind of hydraulic buckling type cover, the main body (1) that comprises band operating pressure passage, it is characterized in that: it is U font seat sealing tube (2) that main body (1) annular boss both sides are equipped with the cross section respectively, two sealing tubes (2) outside is equipped with baffle ring (3) and jump ring (4) successively, the hydraulic channel (5) that communicates with ring in two sealing tubes (2) is arranged on the main body (1), and main body (1) groove is built-in with and the interior ring of baffle ring (3) contacted sealing ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200907451U CN201241658Y (en) | 2008-08-27 | 2008-08-27 | Hydraulic expansion type sleeve inner packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200907451U CN201241658Y (en) | 2008-08-27 | 2008-08-27 | Hydraulic expansion type sleeve inner packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201241658Y true CN201241658Y (en) | 2009-05-20 |
Family
ID=40714954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200907451U Expired - Lifetime CN201241658Y (en) | 2008-08-27 | 2008-08-27 | Hydraulic expansion type sleeve inner packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201241658Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942997A (en) * | 2010-08-24 | 2011-01-12 | 中国海洋石油总公司 | Cementing wall packer channeling checking instrument |
-
2008
- 2008-08-27 CN CNU2008200907451U patent/CN201241658Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942997A (en) * | 2010-08-24 | 2011-01-12 | 中国海洋石油总公司 | Cementing wall packer channeling checking instrument |
| CN101942997B (en) * | 2010-08-24 | 2013-05-29 | 中国海洋石油总公司 | Cementing wall packer channeling checking instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090520 |