CN207122298U - A kind of sliding sleeve fracturing device - Google Patents
A kind of sliding sleeve fracturing device Download PDFInfo
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- CN207122298U CN207122298U CN201720889323.XU CN201720889323U CN207122298U CN 207122298 U CN207122298 U CN 207122298U CN 201720889323 U CN201720889323 U CN 201720889323U CN 207122298 U CN207122298 U CN 207122298U
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- sliding sleeve
- hole
- base tube
- pressure
- holding tank
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Abstract
A kind of sliding sleeve fracturing device is the utility model is related to, it includes：Base tube with inner chamber, the perisporium of base tube are provided with through hole, and the inwall of base tube is provided with holding tank；Sliding sleeve, the projection that can enter holding tank can be fixed with the inner chamber of base tube and on the periphery of sliding sleeve along the axially reciprocating of base tube；Resilient return member, resilient return member in the holding tank, its one end with it is raised against, the other end and end of the holding tank away from through hole against；Drive the formula drive component that builds the pressure of sliding sleeve.When building the pressure, formula drive component drives sliding sleeve to be moved towards the direction of elasticity of compression reset components, and sliding sleeve is moved to the position for opening through hole from the position for closing through hole；When the formula drive component of building the pressure no longer applies active force to sliding sleeve, resilient return member shifts sliding sleeve from the position for opening through hole onto the position for closing through hole.The utility model can open through hole when fracturing work starts, and through hole is closed after fracturing work terminates, so that Oil/gas Well carries out follow-up mining operations.
Description
Technical field
The utility model belongs to oil and gas exploitation apparatus field, and in particular to a kind of sliding sleeve fracturing device.
Background technology
During oil and gas exploitation, fracturing work is a kind of very effective method for increasing.Fracturing device is one
Kind is in the exploitation of horizontal well bore hole or fracturing work for the fluid injections such as fracturing fluid to be improved into reservoir permeability into reservoir
Instrument.Existing fracturing device is mainly included in base tube of the side wall provided with through hole (pressure break hole), the cunning being arranged in base tube
Set and drive component.Drive component can drive sliding sleeve from the state motion of through hole is closed to the state of opening through hole so that
The fluids such as fracturing fluid spurt into reservoir by pressure break hole.But fracturing device of the prior art after pressure break hole is opened with regard to nothing
Method is turned off again.For well head for smaller and deeper depth Oil/gas Well, if pressure break hole can not be closed, it can not just enter again
Stream water-control mining is adjusted in the follow-up separate zone production of row or segmentation, so as to influence the recovery ratio of such Oil/gas Well.
Utility model content
Based on above mentioned problem, the purpose of this utility model is to provide a kind of sliding sleeve fracturing device, and it can make in pressure break
Pressure break hole is opened when industry starts, closes pressure break hole automatically after fracturing work terminates.
The utility model provides a kind of sliding sleeve fracturing device, including：Base tube with inner chamber, in the perisporium of the base tube
The through hole radially extended is provided with, and holding tank is provided with the inwall of the base tube；Sliding sleeve, the sliding sleeve are located at the base
And can be along the axially reciprocating of the base tube in the inner chamber of pipe, being fixed with the periphery of the sliding sleeve to enter
Projection in the holding tank；Resilient return member, the resilient return member in the holding tank, its one end with it is described
Projection leans, and the end of the other end and the remote through hole of the holding tank leans；For driving the sliding sleeve
The formula that builds the pressure drive component；Wherein, when the formula drive component that builds the pressure drives the sliding sleeve towards the compression resilient return member
Direction motion when, the sliding sleeve opens the position of the through hole by being moved to from the position for closing the through hole；Suppressed when described
When pressure type drive component no longer applies active force to the sliding sleeve, the resilient return member compressed can be by the sliding sleeve
The position for closing the through hole is pushed to from the position for opening the through hole.
Preferably, the holding tank is the annular groove being looped around outside the sliding sleeve, and the resilient return member is to be enclosed on
Compression spring outside the sliding sleeve and in the annular groove, the projection is opened along the circumferentially-spaced of the sliding sleeve
The multiple raised or fixed annular protrusion being set in outside the sliding sleeve.
Preferably, the process for the position for opening the through hole is moved to from the position for closing the through hole in the sliding sleeve
In, the periphery wall of the sliding sleeve is whole to close the holding tank.
Preferably, the formula drive component that builds the pressure includes the ball seat that builds the pressure being arranged in the sliding sleeve, and can block
The ball that builds the pressure of the endoporus of the ball seat that builds the pressure.
Preferably, when the formula drive component that builds the pressure also does not drive the sleeve movement, positioned at the closing through hole
The sliding sleeve of position is fixed on by shear component on the inwall of the base tube.
Preferably, the quantity of the through hole is multiple equidistantly interval of multiple through holes along the base tube
Open.
Preferably, the through hole is the axially extending waist-shaped hole along the base tube.
Preferably, positive stop lug boss is provided with the inwall of the base tube, the positive stop lug boss can prevent the sliding sleeve
End away from the through hole skids off the base tube.
Preferably, the base tube include with the through hole main part and with the remote through hole of the main part
The connected connector portions in end, the holding tank are limited and formed jointly by main part with connector portions so that the resilient return member
It can load the main part before the main part and connector portions are unassembled with sliding sleeve.
Preferably, containment member is provided with the composition surface of the main part and connector portions.
According to sliding sleeve fracturing device of the present utility model, before fracturing work starts, sliding sleeve (is pressed positioned at through hole is closed
Ceasma) position, then in the presence of the formula drive component that builds the pressure, sliding sleeve elasticity of compression reset components, and finally move to beat
The position of opened hole so that the fluid such as fracturing fluid being transported to from oil pipe in inner chamber can be ejected into reservoir from the through hole of opening
In；After fracturing work terminates, the formula that builds the pressure drive component no longer applies active force because that can not build the pressure again to sliding sleeve, is being compressed
Resilient return member restoring force in the presence of, sliding sleeve with regard to can be pushed back to close through hole position.It is smaller for well head and
For the deeper Oil/gas Well of depth, after the through hole (i.e. pressure break hole) on base tube is closed, it is possible to carry out follow-up
Stream water-control mining is adjusted in separate zone production or segmentation, so as to improve the tar productivity of Oil/gas Well.In addition, resilient return member is arranged on
In the holding tank of base tube, under the protective effect of sliding sleeve, the fluid flowed through in the inner chamber of base tube will not be made to resilient return member
Into impact, resilient return member and the contact of the fluid flowed through in inner chamber can be also reduced, resilient return member can be extended
Service life.And sliding sleeve fracturing device manufacturing cost of the present utility model is low, simple in construction, easy to operate, is easy to widely
Popularization and application.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art.In all of the figs, it is similar
Element or part are typically identified by similar reference.In accompanying drawing, each element or part might not be according to the ratios of reality
Draw.
Fig. 1 is signal of the sliding sleeve fracturing device of the utility model embodiment when sliding sleeve is positioned at closing lead to the hole site
Figure；
Fig. 2 is signal of the sliding sleeve fracturing device of the utility model embodiment when sliding sleeve is positioned at opening lead to the hole site
Figure.
Description of reference numerals：1st, base tube；2nd, sliding sleeve；3rd, resilient return member；4th, the formula that builds the pressure drive component；5th, structure is sheared
Part；11st, main part；12nd, connector portions；13rd, containment member；101st, inner chamber；102nd, through hole；103rd, holding tank；104th, positive stop lug boss；
201st, it is raised；401st, build the pressure ball seat；402nd, build the pressure ball.
Embodiment
The embodiment of technical solutions of the utility model is described in detail below in conjunction with accompanying drawing.Following examples are only
For clearly illustrating the technical solution of the utility model, therefore example is only used as, and this practicality can not be limited with this
New protection domain.
In order that the purpose of this utility model, technical scheme and effect are clearer, below in conjunction with accompanying drawing to this practicality
New embodiment is described in further detail.
Fig. 1 is signal of the sliding sleeve fracturing device of the utility model embodiment when sliding sleeve is positioned at closing lead to the hole site
Figure, Fig. 2 are schematic diagram of the sliding sleeve fracturing device of the utility model embodiment when sliding sleeve is positioned at opening lead to the hole site.Such as figure
Shown in 1, the sliding sleeve fracturing device includes base tube 1, sliding sleeve 2, resilient return member 3 and the formula drive component 4 that builds the pressure.Base tube 1 has
There is inner chamber 101, the through hole 102 radially extended is provided with the perisporium of base tube 1, and holding tank is provided with the inwall of base tube 1
103.Above-mentioned through hole 102 is namely for by the pressure break hole in the fluid injections such as fracturing fluid to reservoir.Sliding sleeve 2 is located at base tube 1
And can be along the axially reciprocating of base tube 1 in inner chamber 101, holding tank can be entered by being fixed with the periphery of sliding sleeve 2
Projection 201 in 103.In the holding tank 103, its one end leans resilient return member 3 with projection 201, and the other end and
The end of the remote through hole 102 of holding tank 103 leans.In addition, the formula drive component 4 that builds the pressure is used to drive sliding sleeve 2, the formula that builds the pressure is driven
Dynamic component 4 is to refer to make inner chamber 101 build the pressure and the device of sleeve movement is driven using the pressure.The upper end of base tube 1 is with
End is connected with oil pipe, whole sliding sleeve fracturing device is detachably connected on oil pipe so that the inner chamber 101 of base tube 1
It is conducted with oil pipe, can is specifically threaded connection or key connection.Wherein, when the formula drive component 4 that builds the pressure drives sliding sleeve 2 towards pressure
During the direction motion of contracting resilient return member 3, sliding sleeve 2 will be moved to such as Fig. 2 from the position of closing through hole 102 as shown in Figure 1
The position of shown opening through hole 102；When the formula drive component 4 that builds the pressure is revoked to the active force of sliding sleeve 2, compressed bullet
Property reset components 3 can by sliding sleeve 2 from open through hole 102 position be pushed to close through hole 102 position.Pass through the edge of sliding sleeve 2
The axial reciprocating motion of base tube 1, realizes that sliding sleeve 2 opens through hole 102 and closes the switching of through hole 102, when through hole 102 is beaten
When opening, you can by fluid injections such as the fracturing fluids being transported to from oil pipe in inner chamber 101 into reservoir.
According to sliding sleeve fracturing device of the present utility model, before fracturing work starts, sliding sleeve 2 is positioned at closing through hole
The position in 102 (pressure break holes), then in the presence of the formula drive component 4 that builds the pressure, the elasticity of compression reset components 3 of sliding sleeve 2, and finally
Move to the position for opening through hole 102 so that the fluid such as fracturing fluid being transported to from oil pipe in inner chamber can be from the through hole of opening
It is ejected into reservoir；After fracturing work terminates, the formula that builds the pressure drive component 4 no longer applies to sliding sleeve 2 and made because that can not build the pressure again
Firmly, in the presence of the restoring force of the resilient return member 3 compressed, sliding sleeve 2 is closed the position of through hole 102 by that can be pushed back to
Put.For pit shaft for smaller and deeper depth Oil/gas Well, shape is closed when the through hole 102 (i.e. pressure break hole) on base tube 1 is in
After state, it is possible to carry out follow-up separate zone production or stream water-control mining is adjusted in segmentation, so as to improve the tar productivity of Oil/gas Well.This
Outside, resilient return member 3 is arranged in the holding tank 103 of base tube 1, under the protective effect of sliding sleeve 2, the inner chamber 101 of base tube 1
In the fluid that flows through resilient return member 3 will not be impacted, can also reduce resilient return member 3 with being flowed in inner chamber 101
The contact for the fluid crossed, the service life of resilient return member 3 can be extended.And sliding sleeve fracturing device system of the present utility model
Cause low, simple in construction, easy to operate, be easy to widely popularization and application.
In one embodiment, holding tank 103 can be circumferentially spaced multiple recessed along the madial wall of base tube 1
Groove, each groove axially extend；Projection 201 is provided at circumferentially spaced multiple also along sliding sleeve 2, and each raised 201 can divide
Jin Ru not be in each groove；Resilient return member 3 is the multiple compression springs being separately positioned in each groove.It is excellent at another
In the embodiment of choosing, for the ease of processing, reducing production cost, holding tank 103 is the annular groove being looped around outside sliding sleeve 2, bullet
Property reset components 3 be to be enclosed on that sliding sleeve 2 is outer and compression spring in annular groove, projection 201 is along between the circumference of sliding sleeve 2
Multiple raised 201 separated.In addition, in order to further reduce the manufacturing procedure of projection 201, the projection 201 is preferably provided to
The fixed annular protrusion being set in outside sliding sleeve 2.
During sliding sleeve 2 is moved to the position for opening through hole 102 from the position for closing through hole 102, the periphery of sliding sleeve 2
The whole closing holding tank 103 of wall.By such setting the fluids such as fracturing fluid can be avoided to enter in holding tank 103, avoided
The fluids such as fracturing fluid cause to corrode to resilient return member 3.In addition, being additionally provided with positive stop lug boss 104 on the inwall of base tube 1, lead to
Cross the position for rationally designing positive stop lug boss 104 so that positive stop lug boss 104 is able to ensure that when through hole 102 is opened, sliding sleeve
2 still can close holding tank 103, and the positive stop lug boss 104 can also prevent the end of the remote through hole 102 of sliding sleeve 2 from sliding
Go out base tube 1, ensure that sliding sleeve fracturing device of the present utility model can reliably and stably work.
In the present embodiment, the formula that builds the pressure drive component 4 includes the ball seat 401 that builds the pressure being arranged in sliding sleeve 2, and can seal
The ball 402 that builds the pressure of the endoporus of the stifled ball seat 401 that builds the pressure.Before fracturing work is proceeded by, the ball 402 that will build the pressure is thrown from oil pipe
Enter, when the ball 402 that builds the pressure is moved downwardly to build the pressure 401 position of ball seat, you can block the bottom of inner chamber 101 completely so that interior
Pressure in chamber 101 gradually increases, and causes sliding sleeve 2 to start elasticity of compression reset components 3 and move under pressure, through hole 102
It is opened.After fracturing work terminates, the pressure in inner chamber 101 reduces, and sliding sleeve 2 just can be in the effect of resilient return member 3
Under be returned to close through hole 102 position.In addition, in the application process of reality, being coordinated using the ball seat that builds the pressure with the ball that builds the pressure can
To realize multistage fracturing.Specifically, multiple sliding sleeve fracturing devices are installed along oil pipe, along oil pipe from top to bottom each sliding sleeve
The external diameter of the ball that builds the pressure in formula fracturing device is gradually reduced, and the endoporus aperture for the ball seat that builds the pressure also is gradually reduced.Thrown into oil pipe
Enter to build the pressure ball when, first cast internal diameter it is small build the pressure ball to block the ball seat that builds the pressure of the sliding sleeve fracturing device of bottom, then throw successively
Enter the bigger ball that builds the pressure of internal diameter, it is possible to realize classification pressure break.Certainly, in the formula that builds the pressure drive component 4 can also be that by
The other structures form that chamber 101 builds the pressure.
In addition, in order that the fluid such as fracturing fluid ejected from through hole 102 has larger kinetic energy, sleeve type need to be controlled
The Opening pressure of fracturing device, when the formula drive component of building the pressure also does not drive sleeve movement, that is, sliding sleeve 2 is in an initial condition
During positioned at the position for closing through hole 102, sliding sleeve 2 is fixed on the inwall of base tube 1 by shear component 5.When the formula driving that builds the pressure
Component 4 starts to build the pressure, and when sliding sleeve 2 is had the trend of compression spring motion, shear component 5 starts to bear certain shearing should
Power.With incrementally increasing for shear stress, when it exceedes when bearing limit of shear component 5, shear component 5 is cut, shearing
Component is after being cut and permanent failure, sliding sleeve 2 start to move downward.The shear component 5 is chosen as shear pin.Can basis
The Opening pressure of the sliding sleeve fracturing device of setting, to select the specification of shear pin.In this way so that in inner chamber 101
Pressure need to reach the Opening pressure of setting after, sliding sleeve 2 just starts to move downward, and the Opening pressure of the setting is bigger, pressure break
The kinetic energy when fluids such as liquid eject from through hole 102 is bigger.In the case of no shear component 5, if it is desired to control
The Opening pressure of sliding sleeve fracturing device, it is necessary to which the suitable elastic reset structure of elastic force is selected according to the Opening pressure of the setting
Part 3, the bigger resilient return member 3 of elastic force certainly will be so needed, so as to increase the manufacturing cost of sliding sleeve fracturing device.
Preferably, the quantity of through hole 102 is multiple that multiple through holes 102 are equidistantly spaced apart along base tube 1.When
After through hole 102 is opened, the fluid such as fracturing fluid can be equably ejected into reservoir from all directions of base tube 1.Preferably, lead to
Hole 102 is the axially extending waist-shaped hole along base tube 1.The shape of through hole is strip through-hole in other words, the length of strip through-hole
Direction is parallel with the axial direction of base tube.According to the operating mode of reality, the shape of through hole is it can also be provided that circle, rhombus, rectangle etc.
Other are variously-shaped.
In the present embodiment, base tube 1 includes the main part 11 with through hole 102 and the remote through hole 102 with main part 11
The connected connector portions 12 in end, holding tank 103 limits and formed jointly by main part 11 with connector portions 12.Due to being set in base tube 1
Holding tank 103 is equipped with, for ease of the installation of sliding sleeve 2 and resilient return member 3, therefore base tube 1 is arranged to two parts.In assembling
During, first resilient return member 3 and sliding sleeve 2 are fitted into holding tank 103 from the one end of main part 11 away from through hole 102, then
Connector portions 12 are assembled on main part 11.Under connector portions 12 and the collective effect of main part 11, resilient return member 3 is limited
With the position of sliding sleeve 2.Preferably, in order to ensure the sealing of main part 11 and the junction of connector portions 12, prevent in inner chamber 101
Fluid is spilt from the junction of the two, and containment member 13 is provided with the composition surface of main part 11 and connector portions 12.The sealing structure
Part 13 can be fluid sealant or rubber.
In the description of the present application, it is to be understood that the orientation or position relationship of the instruction such as term " on ", " under " are base
In orientation shown in the drawings or position relationship, be for only for ease of description the utility model and simplify and describe, rather than instruction or
Imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that
To limitation of the present utility model.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type, it all should cover among claim of the present utility model and the scope of specification.
Claims (10)
- A kind of 1. sliding sleeve fracturing device, it is characterised in that including：Base tube with inner chamber, the through hole radially extended is provided with the perisporium of the base tube, and in the inwall of the base tube It is provided with holding tank；Sliding sleeve, the sliding sleeve are located in the inner chamber of the base tube and can be along the axially reciprocatings of the base tube, described The projection that can enter in the holding tank is fixed with the periphery of sliding sleeve；Resilient return member, in the holding tank, its one end leans the resilient return member with the projection, and another One end and the end of the remote through hole of the holding tank lean；For driving the formula drive component that builds the pressure of the sliding sleeve；Wherein, when the formula drive component that builds the pressure drives the sliding sleeve towards the direction motion for compressing the resilient return member When, the sliding sleeve opens the position of the through hole by being moved to from the position for closing the through hole；When the formula driving group that builds the pressure When part no longer applies active force to the sliding sleeve, the resilient return member compressed can be by the sliding sleeve from described in opening The position of through hole is pushed to the position for closing the through hole.
- 2. sliding sleeve fracturing device according to claim 1, it is characterised in that the holding tank is to be looped around the sliding sleeve Outer annular groove, the resilient return member are to be enclosed on the compression spring that the sliding sleeve is outer and is located in the annular groove, The projection is the circumferentially-spaced multiple raised or fixed convex annular being set in outside the sliding sleeve opened along the sliding sleeve Rise.
- 3. sliding sleeve fracturing device according to claim 1, it is characterised in that in the sliding sleeve from closing the through hole During position is moved to the position for opening the through hole, the periphery wall of the sliding sleeve is whole to close the holding tank.
- 4. the sliding sleeve fracturing device according to any one of claim 1-3, it is characterised in that the formula driving group that builds the pressure Part includes the ball seat that builds the pressure being arranged in the sliding sleeve, and can block the ball that builds the pressure of the endoporus of the ball seat that builds the pressure.
- 5. the sliding sleeve fracturing device according to any one of claim 1-3, it is characterised in that when the formula driving that builds the pressure When component does not drive the sleeve movement also, close the position of the through hole the sliding sleeve be fixed on by shear component it is described On the inwall of base tube.
- 6. the sliding sleeve fracturing device according to any one of claim 1-3, it is characterised in that the quantity of the through hole is Multiple, multiple through holes are equidistantly spaced apart along the base tube.
- 7. sliding sleeve fracturing device according to claim 6, it is characterised in that the through hole is the axle along the base tube To the waist-shaped hole of extension.
- 8. the sliding sleeve fracturing device according to any one of claim 1-3, it is characterised in that in the inwall of the base tube Positive stop lug boss is provided with, the positive stop lug boss can prevent the end of the remote through hole of the sliding sleeve from skidding off the base tube.
- 9. the sliding sleeve fracturing device according to any one of claim 1-3, it is characterised in that the base tube includes carrying The main part of the through hole and the connector portions being connected with the end of the remote through hole of the main part, the holding tank is by leading Body portion and connector portions are limited and formed jointly so that the resilient return member and sliding sleeve can be in the main part and connector portions not Load the main part before assembling.
- 10. sliding sleeve fracturing device according to claim 9, it is characterised in that in connecing for the main part and connector portions Conjunction face is provided with containment member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720889323.XU CN207122298U (en) | 2017-07-20 | 2017-07-20 | A kind of sliding sleeve fracturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720889323.XU CN207122298U (en) | 2017-07-20 | 2017-07-20 | A kind of sliding sleeve fracturing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207122298U true CN207122298U (en) | 2018-03-20 |
Family
ID=61612862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720889323.XU Active CN207122298U (en) | 2017-07-20 | 2017-07-20 | A kind of sliding sleeve fracturing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN207122298U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143307A (en) * | 2017-07-20 | 2017-09-08 | 中国石油化工股份有限公司 | A kind of sliding sleeve fracturing device |
-
2017
- 2017-07-20 CN CN201720889323.XU patent/CN207122298U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143307A (en) * | 2017-07-20 | 2017-09-08 | 中国石油化工股份有限公司 | A kind of sliding sleeve fracturing device |
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| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tang Shichun Inventor after: Wan Xiaoyong Inventor after: Li Xiang Inventor after: Su Peng Inventor after: Wang Kun Inventor after: Zhang Jie Inventor after: Li Weiliang Inventor after: Ma Xinzhong Inventor after: Li Lintao Inventor after: Li Dongmei Inventor after: Jia Xiaobin Inventor after: Li Shuanggui Inventor after: Long Wu Inventor after: Huang Chuanyan Inventor after: Li Gen Inventor before: Ma Xinzhong Inventor before: Li Xiang Inventor before: Su Peng Inventor before: Wang Kun Inventor before: Zhang Jie Inventor before: Li Weiliang Inventor before: Li Lintao Inventor before: Li Dongmei Inventor before: Jia Xiaobin Inventor before: Li Shuanggui Inventor before: Long Wu Inventor before: Huang Chuanyan Inventor before: Li Gen Inventor before: Wan Xiaoyong |
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| CB03 | Change of inventor or designer information |