CN208040345U - The inflatable packer of stepped setting - Google Patents
The inflatable packer of stepped setting Download PDFInfo
- Publication number
- CN208040345U CN208040345U CN201820531441.8U CN201820531441U CN208040345U CN 208040345 U CN208040345 U CN 208040345U CN 201820531441 U CN201820531441 U CN 201820531441U CN 208040345 U CN208040345 U CN 208040345U
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- CN
- China
- Prior art keywords
- fixedly connected
- resetting spring
- gum cover
- central tube
- stepped setting
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Abstract
The utility model discloses a kind of inflatable packers of stepped setting, including central tube, it is fixedly connected with interior gum cover in below the upper jacket, it is fixedly connected with stacked steel plate on the outside of the interior gum cover, it is fixedly connected with outer gum cover on the outside of the stacked steel plate, it is fixedly connected with fixing sleeve below the lower jacket, it is fixedly connected with resetting spring below the fixing sleeve, the central tube is close to grafting slip pipe at resetting spring, top is fixedly connected with elastic base in the slip pipe, steel ball is equipped with above the elastic base, it is fixedly connected with first annular block below the resetting spring, the lower contact is fixedly connected with shear pin below first annular block.The utility model stacked steel plate can play the role of support, improve the high voltage bearing performance of gum cover, and slip pipe realizes stepped setting with resetting spring, avoid the problem of top premature setting influence is set, and elastic base can be such that steel ball passes through made of bloom, avoid blocking.
Description
Technical field
The utility model is related to oilfield exploitation technical field, specially a kind of inflatable packer of stepped setting.
Background technology
Packer refers to elastic sealing elements, and insulates whereby between various sizes tubing string and wellbore and between tubing string
Annular space, and completely cut off payzone, (note) liquid, the downhole tool of protection sleeve pipe are produced with control.Packer is used in petroleum production engineering
It is layered, is designed with oil channel on packer, when setting, piston bush uplink, oil channel is opened；After setting, upper stressor layer
It acts on dummy piston, pushes up packing element, make deblocking pin from shearing force；When deblocking, the frictional force of packing element and casing is leaned on
Deblocking pin is cut, piston bush downlink closes oil channel.Packer quantity is more during the installation process, and fracturing fluid injects meeting
Make packer Close All, the packer premature setting on top can be made, packer is made to fail, influence sets effect, makes for a moment
At unnecessary waste.
Utility model content
The purpose of this utility model is to provide a kind of inflatable packers of stepped setting, to solve above-mentioned background technology
The problem of upper packer premature setting of middle proposition, influence sets effect.
To achieve the above object, the utility model provides the following technical solutions：A kind of inflatable packer of stepped setting,
Including central tube, the central tube top is fixedly connected with top connection, and upper jacket, the upper shield are fixedly connected with below the top connection
It is fixedly connected with interior gum cover in set lower section, stacked steel plate is fixedly connected on the outside of the interior gum cover, the stacked steel plate outside is fixed to be connected
Connect outer gum cover, diplomacy set lower section is fixedly connected with lower jacket, close to fixed connection and sealing at central tube below the lower jacket
Ring is fixedly connected with fixing sleeve below the lower jacket, is fixedly connected with resetting spring below the fixing sleeve, the central tube by
Grafting slip pipe at nearly resetting spring, the interior top of the slip pipe are fixedly connected with elastic base, steel ball are equipped with above the elastic base,
It is fixedly connected with first annular block below the resetting spring, cylinder sleeve, the cylinder are fixedly connected on the outside of the first annular block
Set lower section is fixedly connected with the second collar stop, is fixedly connected with lower contact below second collar stop, and the lower contact is the
It is fixedly connected with shear pin below one collar stop.
Preferably, the center bottom of the tube is in the funnel-form stood upside down.
Preferably, outside is fixed with protrusion in the middle part of the slip pipe, and the slip pipe prominence is clamped with resetting spring pedestal.
Preferably, fixed connection and sealing ring on the outside of the shear pin.
Preferably, the lower contact shear pin on circumference be equipped with inlet.
Preferably, the elastic base is made of elastic bloom.
Compared with prior art, the utility model has the beneficial effects that：
1, the inflatable packer of the stepped setting plays the role of seal protection by the upper lower jacket of setting.
2, the inflatable packer of the stepped setting can play the role of support by the way that stacked steel plate is arranged, improve gum cover
High voltage bearing performance.
3, the inflatable packer of the stepped setting is realized stepped setting with resetting spring by the way that slip pipe is arranged, is avoided
The problem of top premature setting influence is set.
4, the inflatable packer of the stepped setting can be such that steel ball passes through by the way that elastic base made of bloom is arranged,
Avoid blocking.
Description of the drawings
Fig. 1 is the sectional view before the utility model steel ball is fallen into；
Fig. 2 is the sectional view after the utility model steel ball is fallen into.
In figure：1 central tube, 2 top connections, 3 slip pipes, 4 upper jackets, gum cover in 5,6 stacked steel plates, 7 outer gum covers, 8 lower jackets,
9 sealing rings, 10 fixing sleeves, 11 resetting springs, 12 first annular blocks, 13 cylinder sleeves, 14 second collar stops, 15 lower contacts, 16
Shear pin, 17 elastic bases, 18 steel balls.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
In the description of this practicality, it should be noted that the orientation of the instructions such as term "vertical", "upper", "lower", "horizontal" or
Person's position relationship is orientation based on ... shown in the drawings or position relationship, is merely for convenience of describing this practicality and simplify to describe,
Rather than instruction either implies that signified device or element must have a particular orientation, with specific azimuth configuration and behaviour
Make, therefore should not be understood as the limitation to this practicality.In addition, " first ", " second ", " third ", " the 4th " are only used for description mesh
, and should not be understood as indicating or implying relative importance.
In the description of this practicality, it is also necessary to explanation, unless otherwise specific regulation and limitation, term " setting ", " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection can be mechanical connection, can also be electrical connection, can be directly connected to, and can also be to be connected by intermediary, can
To be the connection inside two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned
Concrete meaning of the term in this practicality.
- 2 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of inflatable packer of stepped setting, packet
Include central tube 1, for 1 bottom of the central tube in the funnel-form stood upside down, 1 top of the central tube is fixedly connected with top connection 2, it is described on
2 lower section of connector is fixedly connected with upper jacket 4, and interior gum cover 5 is fixedly connected in 4 lower section of the upper jacket, and 5 outside of the interior gum cover is fixed
Stacked steel plate 6 is connected, the stacked steel plate 6 can play the role of support, improve the high voltage bearing performance of gum cover, the stacked steel plate
6 outsides are fixedly connected with outer gum cover 7, and 7 lower section of diplomacy set is fixedly connected with lower jacket 8, and the upper jacket 4 and lower jacket 8 play
The effect of seal protection, 8 lower section of the lower jacket is close to fixed connection and sealing ring 9 at central tube 1,8 lower section of the lower jacket
It is fixedly connected with fixing sleeve 10,10 lower section of the fixing sleeve is fixedly connected with resetting spring 11, and the central tube 1 is close to resetting spring
Grafting slip pipe 3 at 11, the slip pipe 3 realize that stepped setting, level-one have set resetting spring Rapid reset, kept away with resetting spring 11
The problem of top premature setting influence is set is exempted from, 3 middle part outside of the slip pipe is fixed with protrusion, 3 prominence of the slip pipe
It is clamped with 11 pedestal of resetting spring, top is fixedly connected with elastic base 17 in the slip pipe 3, and the elastic base 17 is Elastic Steel
Block is made, and elastic base 17 made of the bloom can be such that steel ball passes through, and avoids blocking, and 17 top of the elastic base is set
There are steel ball 18,11 lower section of the resetting spring to be fixedly connected with first annular block 12,12 outside of the first annular block is fixed
Cylinder sleeve 13 is connected, 13 lower section of the cylinder sleeve is fixedly connected with the second collar stop 14, and second collar stop, 14 lower section is fixed to be connected
Lower contact 15 is connect, the lower contact 15 is fixedly connected with shear pin 16 below first annular block 12, and the lower contact 15 exists
Shear pin 16 is equipped with inlet, 16 outside fixed connection and sealing ring of the shear pin with circumference.
Operation principle：When in use, steel ball 18 is put into central tube 1, falls on elastic base 17, and cutting shearing is suppressed in water filling
Pin 16, slip pipe 3 glide, and elastic base 17 is opened, and steel ball 18 falls, liquid enters between central tube 1 and interior gum cover 5 strut in
Gum cover 5, under the effect of resetting spring 11, slip pipe 3 resets, and 18 downlink of steel ball once casts steel ball 18, is allowed to realize and sit step by step
Envelope.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of inflatable packer of stepped setting, including central tube (1), it is characterised in that：Central tube (1) top is solid
Surely connection top connection (2), is fixedly connected with upper jacket (4) below the top connection (2), below the upper jacket (4) in fixed connect
Interior gum cover (5) is connect, stacked steel plate (6) is fixedly connected on the outside of the interior gum cover (5), is fixedly connected on the outside of the stacked steel plate (6)
Outer gum cover (7), is fixedly connected with lower jacket (8) below the outer gum cover (7), close to central tube (1) below the lower jacket (8)
Locate fixed connection and sealing ring (9), fixing sleeve (10) is fixedly connected with below the lower jacket (8), fixing sleeve (10) lower section is solid
Surely connection resetting spring (11), the central tube (1) is in grafting slip pipe (3) at resetting spring (11), the slip pipe (3)
Top is fixedly connected with elastic base (17), is equipped with steel ball (18) above the elastic base (17), under the resetting spring (11)
Side is fixedly connected with first annular block (12), and cylinder sleeve (13), the cylinder sleeve are fixedly connected on the outside of the first annular block (12)
(13) lower section is fixedly connected with the second collar stop (14), and lower contact (15) is fixedly connected with below second collar stop (14),
The lower contact (15) is fixedly connected with shear pin (16) below first annular block (12).
2. a kind of inflatable packer of stepped setting according to claim 1, it is characterised in that：The central tube (1)
Bottom is in the funnel-form stood upside down.
3. a kind of inflatable packer of stepped setting according to claim 1, it is characterised in that：In the slip pipe (3)
Protrusion is fixed on the outside of portion, slip pipe (3) prominence is clamped with resetting spring (11) pedestal.
4. a kind of inflatable packer of stepped setting according to claim 1, it is characterised in that：The shear pin
(16) outside fixed connection and sealing ring.
5. a kind of inflatable packer of stepped setting according to claim 1, it is characterised in that：The lower contact (15)
Shear pin (16) on circumference be equipped with inlet.
6. a kind of inflatable packer of stepped setting according to claim 1, it is characterised in that：The elastic base
(17) it is made of elasticity bloom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820531441.8U CN208040345U (en) | 2018-04-16 | 2018-04-16 | The inflatable packer of stepped setting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820531441.8U CN208040345U (en) | 2018-04-16 | 2018-04-16 | The inflatable packer of stepped setting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208040345U true CN208040345U (en) | 2018-11-02 |
Family
ID=63945165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820531441.8U Active CN208040345U (en) | 2018-04-16 | 2018-04-16 | The inflatable packer of stepped setting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208040345U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112814639A (en) * | 2021-02-04 | 2021-05-18 | 广州海洋地质调查局 | Expansion type staged fracturing process pipe column and fracturing method |
-
2018
- 2018-04-16 CN CN201820531441.8U patent/CN208040345U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112814639A (en) * | 2021-02-04 | 2021-05-18 | 广州海洋地质调查局 | Expansion type staged fracturing process pipe column and fracturing method |
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