CN2588045Y - Wedging in type packer - Google Patents
Wedging in type packer Download PDFInfo
- Publication number
- CN2588045Y CN2588045Y CN 02251432 CN02251432U CN2588045Y CN 2588045 Y CN2588045 Y CN 2588045Y CN 02251432 CN02251432 CN 02251432 CN 02251432 U CN02251432 U CN 02251432U CN 2588045 Y CN2588045 Y CN 2588045Y
- Authority
- CN
- China
- Prior art keywords
- packer
- wedging
- packing element
- rubber tube
- sealing
- 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 - Lifetime
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Abstract
The utility model discloses a wedging in type packer; the packer can be sealed by a wedging type rubber tube; one lock ring with reverse teeth is arranged in a cylinder sleeve of a piston hydraulic cylinder on the rubber tube. The packer can push the wedging type rubber tube to move downwards through the piston hydraulic cylinder under the hydraulic action; a conical body can be wedged into the rubber tube for strutting the rubber tube, causing that the rubber tube is tightly stuck on the inner wall of the sleeve tube; the packer is in a sealing state. The sealing force of a wedging type rubber tube seat is small; the sealing is reliable; the utility model is especially suitable for the operation of a slope well and a horizontal well.
Description
Technical field
The utility model relates to the Wel packing that uses in a kind of oilfield underground work, specifically a kind of wedging packer.
Background technology
In the prior art, the packer kind that is widely used at present in the underground work of oil development field is a lot, and structure is varied, according to its sealing principle classification, mainly is divided into four kinds, is respectively: compression, expansion type, self-sealing and wedging formula.Since all kinds of packer sealing mode differences, the operating principle difference, the applicable elements difference, thereby its limitation is respectively arranged.Existing wedging packer as the wedging packer that Chinese patent CN2336087Y is separated, utilizes thermo-sensitive material expansion back to promote the piston set packer, and deblocking then reduces thermo-sensitive material contraction deblocking by temperature, therefore, can only be used for thermal production well; And the sealing drum of hollow reduces in long-time its sealing performance of back of using.
Summary of the invention
The purpose of this utility model is at the existing existing limitation of packer that is inserted into, develop a kind of operating pressure height, setting force and deblocking power are little, can be applicable in distortion well, oblique straight well, horizontal well and the open hole well, and the more reliable novel wedging packer of sealing.
In order to achieve the above object, the utility model provides a kind of wedging packer, mainly is made up of top connection 1, special joint 2, last gland 3, safe shear pin 4, lock ring 5, cylinder sleeve 6, sealing ring 7 and 10, central tube 8, packing element 9, cone 13, deblocking shear pin 14, lower contact 15, seat envelope sliding sleeve 16 and a seat envelope shear pin 18.The top of wedging packer is by a piston hydraulic cylinder of being made up of special joint 2, cylinder sleeve 6, central tube 8, packing element 9, sealing ring 7 and sealing ring 10, and lock ring 5 has pawl and is positioned at the cylinder sleeve 6 of piston hydraulic cylinder; Packing element 9 usefulness rubber and metal sulfide, and the packing element inner skeleton adopts the elastic metallic steel disc.
Because the utility model packer adopts the sealing of wedging formula packing element, its expansion ratio is bigger, and packer steel body diameter is less, compares with the packer of same sleeve pipe specification, and this packer is lowered to easily and proposes, and can be used in the casing deformation well; Owing to have the metal steel disc to do skeleton in the wedging formula packing element of this packer, thereby operating pressure is very high, applicable to the processing operation of oblique straight well, horizontal well and open hole well.
Description of drawings
Below in conjunction with accompanying drawing the utility model wedging packer is described in further detail.
Fig. 1 is the utility model wedging packer structural representation.
Specific embodiment
The utility model wedging packer can be divided into single packing element, two packing element or three packing element type packers according to the difference of using packing element quantity.Be illustrated in figure 1 as the utility model three packing element wedging packer schematic diagrames, mainly by top connection 1, special joint 2, go up gland 3, safe shear pin 4, lock ring 5, cylinder sleeve 6, sealing ring 7 and 10, central tube 8, packing element 9, snap ring 11, in, lower rubber cylinder 12, cone 13, deblocking shear pin 14, lower contact 15, seat envelope sliding sleeve 16, sealing ring 17 and a seat envelope shear pin 18 form.
Top connection 1 all is connected sealing by tubing round thread with special joint 2, central tube 8 with lower contact 15.Special joint 2, cylinder sleeve 6, central tube 8, packing element 9, sealing ring 7 and sealing ring 10 are formed piston hydraulic cylinder, two apertures of liquid on central tube 8 enter in the hydraulic cylinder, and packing element 9 on the hydraulic drive, in promoting then, lower rubber cylinder 12, packing element is expanded, and packer is sealing state.Three wedging formula packing elements all are that rubber and metal sulfide, and in, the metal cone of sulfuration is all arranged on the lower rubber cylinder, the flexible metal steel disc in packing element inside is done skeleton.
The course of work of the present utility model is as follows: Fig. 1 is a state before this packer setting, throws a steel ball earlier and is seated on the seat envelope sliding sleeve 16, suppresses in packer then, and two apertures of hydraulic pressure on central tube 8 act on the packing element 9.Under certain pressure, safe shear pin 4 is cut off, and it is descending that cylinder sleeve 6 drives lock ring 5, and top packing element 9, middle packing element and lower rubber cylinder 12 compress step by step, and packing element expands and is close on the casing wall, and lock ring 5 and special joint 2 lockings stop on the cylinder sleeve 6 and move simultaneously.When pressure increases to certain value, a seat envelope shear pin 18 is cut off, and a steel ball and a seat envelope sliding sleeve 16 are hit down, and packer is the state of setting always.During deblocking, on carry packer, tension is on central tube 8, lower contact 15 and cone 13, and when power increases to certain value, deblocking shear pin 14 is cut off, cone 13 is descending, three packing elements also discharge step by step, and are hung in respectively on the step of snap ring 11 upper and lower joints 15, and three packing elements are not superposeed mutually, packing element is the preceding state that sets, packer deblocking.
Claims (4)
1. a wedging packer mainly is made up of top connection (1), special joint (2), last gland (3), safe shear pin (4), lock ring (5), cylinder sleeve (6), central tube (8), packing element (9), cone (13), deblocking shear pin (14), lower contact (15), seat envelope sliding sleeve (16) and a seat envelope shear pin (18), one piston hydraulic cylinder is arranged at the top that it is characterized in that described wedging packer, and the lock ring (5) of a band pawl is arranged in the cylinder sleeve (6); Described packing element sulfides with rubber and metal.
2. wedging packer according to claim 1 is characterized in that described piston hydraulic cylinder is made up of special joint (2), cylinder sleeve (6), central tube (8), packing element (9), sealing ring (7) and sealing ring (10).
3. wedging packer according to claim 1 is characterized in that described packing element inner skeleton material is the elastic metallic steel disc.
4. wedging packer according to claim 1 is characterized in that described packing element is 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02251432 CN2588045Y (en) | 2002-12-06 | 2002-12-06 | Wedging in type packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02251432 CN2588045Y (en) | 2002-12-06 | 2002-12-06 | Wedging in type packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2588045Y true CN2588045Y (en) | 2003-11-26 |
Family
ID=33721288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02251432 Expired - Lifetime CN2588045Y (en) | 2002-12-06 | 2002-12-06 | Wedging in type packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2588045Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650202A (en) * | 2012-05-04 | 2012-08-29 | 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 | Expansion compression type packer |
| CN103075126A (en) * | 2013-01-08 | 2013-05-01 | 汤志忠 | Wedge type reusing setting and deblocking packer |
| CN105041260A (en) * | 2015-07-21 | 2015-11-11 | 中国海洋石油总公司 | KCMF-type pressure-expansible insert seal |
| CN107842337A (en) * | 2016-09-18 | 2018-03-27 | 中国石油化工股份有限公司 | Underground HTHP seal combination |
| CN115030683A (en) * | 2022-07-29 | 2022-09-09 | 武昌理工学院 | Novel two-stage wedging type long rubber sleeve packer |
-
2002
- 2002-12-06 CN CN 02251432 patent/CN2588045Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650202A (en) * | 2012-05-04 | 2012-08-29 | 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 | Expansion compression type packer |
| CN102650202B (en) * | 2012-05-04 | 2015-04-08 | 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 | Expansion compression type packer |
| CN103075126A (en) * | 2013-01-08 | 2013-05-01 | 汤志忠 | Wedge type reusing setting and deblocking packer |
| CN103075126B (en) * | 2013-01-08 | 2017-07-28 | 大庆市晟威机械制造有限公司 | Wedged, which is reused, sits deblocking packer |
| CN105041260A (en) * | 2015-07-21 | 2015-11-11 | 中国海洋石油总公司 | KCMF-type pressure-expansible insert seal |
| CN105041260B (en) * | 2015-07-21 | 2017-12-12 | 中海油能源发展股份有限公司 | A kind of KCMF types pressure expansion formula insertion sealing |
| CN107842337A (en) * | 2016-09-18 | 2018-03-27 | 中国石油化工股份有限公司 | Underground HTHP seal combination |
| CN115030683A (en) * | 2022-07-29 | 2022-09-09 | 武昌理工学院 | Novel two-stage wedging type long rubber sleeve packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121206 Granted publication date: 20031126 |