CN206071523U - Packer for fireflooding - Google Patents
Packer for fireflooding Download PDFInfo
- Publication number
- CN206071523U CN206071523U CN201621033095.8U CN201621033095U CN206071523U CN 206071523 U CN206071523 U CN 206071523U CN 201621033095 U CN201621033095 U CN 201621033095U CN 206071523 U CN206071523 U CN 206071523U
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- Prior art keywords
- piston
- connecting tube
- fluid cylinder
- ring
- packer
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- 230000007246 mechanism Effects 0.000 claims abstract description 127
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 230000009471 action Effects 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims description 53
- 239000007788 liquid Substances 0.000 claims description 24
- 238000010008 shearing Methods 0.000 claims description 15
- 238000009825 accumulation Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 description 10
- 239000003921 oil Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000012925 reference material Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The application discloses packer for fireflood includes: a central tube; the sealing mechanism is sleeved on the central pipe and can seal the oil sleeve annulus; the anchoring mechanism is sleeved on the central pipe and can anchor the inner wall of the sleeve; the action mechanism is sleeved on the central pipe and is positioned between the sealing mechanism and the action mechanism; the actuating mechanism comprises a first piston mechanism and a second piston mechanism; when the first piston mechanism acts, the anchoring mechanism can be anchored on the inner wall of the sleeve; and when the second piston mechanism acts, the sealing mechanism can seal the oil sleeve annulus. The packer provided by the application can be suitable for fireflood exploitation oil field work.
Description
Technical field
The application is related to oilfield exploitation downhole tool field, more particularly to a kind of fireflood packer.
Background technology
Liaohe Oil Field is the maximum viscous crude production base of China, and heavy oil production accounts for the 60% of total output, most of at present
Block is in the steam injection development later stage, and exploitation difficulty increases, and it is a kind of effective that fireflood is taken over development scheme as which
Means.
Fireflood is to light oil reservoir by artificial or spontaneous manner, and continues to make Crude Oil to oil reservoir injection air or oxygen
Sustained combustion, the heavies in crude oil produce a large amount of heat energy and combustion tail gas Jing after burning, drive the light fraction in crude oil
Producing well is together flowed to water, is produced from oil well together.
Due to down-hole, during burning, temperature drastically can be raised, the ring for being difficult again such high temperature of the packer of routine
Normal work under border.
Utility model content
To solve the above problems, the application is necessary to provide a kind of fireflood packer, can exploit suitable for fireflood
Field operations.
To solve the above problems, the application provides a kind of fireflood packer, including：
Central canal；
The sealing mechanism being sheathed on the central canal, oil jacket annular space can be insulated by which；
The anchor mechanism being sheathed on the central canal, the inwall of its energy anchor sleeve；
The actuating mechanism being sheathed on the central canal, which is located between the sealing mechanism and the actuating mechanism；Institute
Stating actuating mechanism includes first piston mechanism and second piston mechanism；Anchor mechanism anchor can be made during the first piston mechanism action
Determine the inwall of sleeve pipe；When the second piston mechanism action sealing mechanism can be insulated oil jacket annular space.
As one kind preferred embodiment, the sealing mechanism, the second piston mechanism, the first piston machine
Structure and the anchor mechanism are from top to bottom sequentially arranged.
As one kind preferred embodiment, the central canal is provided with the first liquid outlet and the second liquid outlet；Described
One liquid outlet is engaged with the first piston mechanism, and second liquid outlet is engaged with the second piston mechanism.
As one kind preferred embodiment, the first piston mechanism includes the first company being sheathed on the central canal
Adapter, be sheathed on outside first connecting tube the first fluid cylinder, between first connecting tube and first fluid cylinder
First piston and locking tube；
The upper end of first connecting tube connects the second piston mechanism, and lower end connects the anchor mechanism；
The first piston is located between the locking tube and first connecting tube；First liquid outlet is passed through described
Annular space between first connecting tube and first fluid cylinder, the anchor mechanism are located under the first piston and locking tube
Side；
The lower end of first fluid cylinder is provided with the retaining ring coordinated with the locking tube；The retaining ring prevents the locking
Pipe is moved up.
As one kind preferred embodiment, the second piston mechanism includes the second company being sheathed on the central canal
Adapter, be sheathed on outside second connecting tube the second fluid cylinder, between second connecting tube and second fluid cylinder
Second piston；
Second fluid cylinder includes the second fluid cylinder lid being fixedly connected and the second fluid cylinder pipe；The piston is located at described second
Between fluid cylinder pipe and second connecting tube, the second piston is connected by setting pin with the second fluid cylinder lid；It is described
Sealing mechanism is located at the top of the second fluid cylinder lid；
The second piston is fixedly connected with second connecting tube；The upper end connection sealer of second connecting tube
Structure, its lower end connect first connecting tube；
Second connecting tube is provided with connecting hole, and second liquid outlet is passed through the second piston by the connecting hole
Between the second fluid cylinder lid.
As one kind preferred embodiment, connected by adapter sleeve between second connecting tube and first connecting tube
Connect；The adapter sleeve is provided with the through hole communicated with first liquid outlet；Spacing closing piece is provided with the through hole；The locking
The spacing closing piece is engaged when not moving by pipe with the central canal.
As one kind preferred embodiment, the upper end of the central canal is connected with top connection；It is arranged outside the top connection
There is box cupling；The top connection is connected by unsealing pin with the box cupling；
The sealing mechanism includes trocar sheath, the outside seal being sheathed on the trocar sheath, the tune of connection coupling lower end
Section ring；The lower end of the trocar sheath connects the upper end of second connecting tube；
Inner seal liner, pressure ring and gear cap are provided between the trocar sheath and the central canal；The inwall of the trocar sheath sets
There is lobe；The upper end contact box cupling of the gear cap, the pressure ring and inner seal liner are located at the lower end of the gear cap and described convex
Between the portion of rising；
The second fluid cylinder lid can be along the outer wall upward sliding of the trocar sheath, so as to the outside seal is compressed swollen
It is swollen.
As one kind preferred embodiment, the anchor mechanism is sheathed on outside first connecting tube；The grappling machine
Structure includes the connection of upper cone below the first piston and the locking tube, slips, lower cone and the lower cone
Base；The base is located at below lower cone；
The deblocking closing piece with the base engagement is provided with below first connecting tube；The outer wall of the central canal is upper
Undergauge section is provided with below deblocking closing piece, the undergauge section can destroy the cooperation of the deblocking closing piece and the base.
As one kind preferred embodiment, the top connection is provided with exterior protrusion, and the box cupling is provided with internal projection portion；Institute
Internal projection portion is stated above the exterior protrusion, the exterior protrusion can promote the internal projection portion.
As one kind preferred embodiment, bullet is provided between the slips and the lower cone and first connecting tube
Property mechanism；The elastic mechanism connects first connecting tube by shear pin；The elastic mechanism can be cut off after accumulation of energy
The shear pin simultaneously promotes the lower cone.
As one kind preferred embodiment, the elastic mechanism includes solving seal ring, thrust ring, spring, non-return ring, shearing
Ring；The elastic mechanism is located at the top of the deblocking closing piece and the lower section of the upper cone；The thrust ring is sheathed on institute
State solution seal ring outer to promote the solution seal ring；Thrust ring described in the spring one end contact, shearing ring described in other end contact；Institute
State non-return ring to be located between the shearing ring and the lower cone, the inwall of the lower cone is provided with and shearing ring cooperation
Helical teeth；The shear pin connects the shearing ring and first connecting tube.
The packer provided by present embodiment is by promoting close respectively using first piston mechanism and second piston mechanism
Sealing mechanism and anchor mechanism, such that it is able to be that sealing mechanism and anchor mechanism are provided, and then obtain preferable
Sealing effectiveness and anchoring effect, therefore, the packer provided by present embodiment can be applied to fireflood exploit field operations.
With reference to explanation hereinafter and accompanying drawing, particular implementation of the present utility model is disclose in detail, specified practical
New principle can be in adopted mode.It should be understood that embodiment of the present utility model not thus is subject in scope
Limit.In the range of the spirit and terms of claims, embodiment of the present utility model includes many changes, modifications
And equivalent.
The feature for describing for a kind of embodiment and/or illustrating can be in same or similar mode one or more
It is used in individual other embodiment, combined with the feature in other embodiment, or substitute the feature in other embodiment.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when using herein, but and
It is not excluded for the presence of one or more further features, one integral piece, step or component or additional.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those skilled in the art, without having to pay creative labor,
Can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is a kind of fireflood packer construction schematic diagram provided by embodiment of the application.
Specific embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, below in conjunction with the application reality
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described enforcement
Example is only some embodiments of the present application, rather than the embodiment of whole.Based on the embodiment in the application, this area is common
The every other embodiment obtained on the premise of creative work is not made by technical staff, should all belong to this practicality new
The scope of type protection.
It should be noted that when element is referred to as " being arranged at " another element, it can directly on another element
Or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left side ",
For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technology used herein and scientific terminology are led with technology of the present utility model is belonged to
The implication that the technical staff in domain is generally understood that is identical.In term used in the description of the present utility model it is simply herein
The purpose of description specific embodiment, it is not intended that in limiting this utility model.Term as used herein "and/or" bag
Include the arbitrary and all of combination of one or more related Listed Items.
Fig. 1 is referred to, for a kind of fireflood packer that a kind of embodiment of the application is provided, in the present embodiment,
Including：Central canal 10；The sealing mechanism being sheathed on the central canal 10, oil jacket annular space can be insulated by which；Be sheathed on it is described in
Anchor mechanism on heart pipe 10, the inwall of its energy anchor sleeve；The actuating mechanism being sheathed on the central canal 10, which is located at institute
State between sealing mechanism and the actuating mechanism；The actuating mechanism includes 14 mechanism of 20 mechanism of first piston and second piston；
The inwall of anchor mechanism anchor sleeve can be made during 20 mechanism action of first piston；Energy during 14 mechanism action of second piston
Sealing mechanism is made to insulate oil jacket annular space.
The packer provided by present embodiment is by being pushed away using 20 mechanism of first piston and 14 mechanism of second piston respectively
Dynamic sealing mechanism and anchor mechanism, such that it is able to be that sealing mechanism and anchor mechanism are provided, and then obtain
Preferable sealing effectiveness and anchoring effect, therefore, the packer provided by present embodiment can be applied to fireflood and exploit oil field
Work.
The sealing mechanism, 14 mechanism of the second piston, 20 mechanism of the first piston and the anchor mechanism are by upper
Sequentially arrange under.As shown in figure 1, the sealing mechanism, 14 mechanism of the second piston, 20 mechanism of the first piston and
The anchor mechanism is at least sheathed on central canal 10 by upper.
The central canal 10 is provided with the first liquid outlet and the second liquid outlet.First liquid outlet and the first piston
20 mechanisms are engaged, and second liquid outlet is engaged with 14 mechanism of the second piston.Wherein, by suppressing outside well, first
, by pressure transmission to 20 mechanism of first piston, the second liquid outlet is by pressure transmission to 14 mechanism of second piston for liquid outlet.
Specifically, 20 mechanism of the first piston can include being sheathed on the first connecting tube 33 on the central canal 10,
Be sheathed on the first fluid cylinder outside first connecting tube 33, between first connecting tube 33 and first fluid cylinder
One piston 20 and locking tube 19.
The upper end of first connecting tube 33 connects 14 mechanism of second piston, and lower end connects the anchor mechanism.Tool
Body, the upper end of first connecting tube 33 can be threadedly coupled 14 mechanism of the second piston, and lower end is threadedly coupled the anchor
Determine mechanism.
The first piston 20 is located between the locking tube 19 and first connecting tube 33；First liquid outlet leads to
Enter the annular space between first connecting tube 33 and first fluid cylinder, the anchor mechanism is located at the first piston 20 and lock
The lower section of tight pipe 19.
The lower end of first fluid cylinder is provided with the retaining ring 22 coordinated with the locking tube 19；The retaining ring 22 prevents institute
State locking tube 19 to move up.First fluid cylinder includes the first fluid cylinder lid 16 and the first fluid cylinder pipe 21；The first fluid cylinder lid
16 are connected between the first fluid cylinder pipe 14 and the second fluid cylinder pipe 21.
14 mechanism of the second piston includes the second connecting tube 15 being sheathed on the central canal 10, is sheathed on described
The second fluid cylinder outside two connecting tubes 15, the second piston 14 between second connecting tube 15 and second fluid cylinder.
Second fluid cylinder includes the second fluid cylinder lid 11 being fixedly connected and the second fluid cylinder pipe 12；The piston is located at described
Between second fluid cylinder pipe 12 and second connecting tube 15, the second piston 14 is with the second fluid cylinder lid 11 by setting pin
Nail 13 connects；The sealing mechanism is located at the top of the second fluid cylinder lid 11.
The second piston 14 is fixedly connected with second connecting tube 15；The upper end connection of second connecting tube 15 is close
Sealing mechanism, its lower end connect first connecting tube 33.Second connecting tube 15 is provided with connecting hole, and the connecting hole is by institute
State the second liquid outlet to be passed through between the second piston 14 and the second fluid cylinder lid 11.
Connected by adapter sleeve 17 between second connecting tube 15 and first connecting tube 33；On the adapter sleeve 17
It is provided with the through hole communicated with first liquid outlet；Spacing closing piece 18 is provided with the through hole；When the locking tube 19 is not moved
The spacing closing piece 18 is engaged with the central canal 10.Wherein, can lead between the outer wall of central canal 10 and spacing closing piece 18
Engagement is crossed, so as to prevent the two upper and lower relative movement.
The upper end of the central canal 10 is connected with top connection 1；Box cupling 2 is arranged with outside the top connection 1；The top connection 1
It is connected by unsealing pin 3 with the box cupling 2.The sealing mechanism include trocar sheath 9, be sheathed on it is outer on the trocar sheath 9
Sealing member 7, the regulation ring 5 of 2 lower end of connection coupling；The lower end of the trocar sheath 9 connects the upper end of second connecting tube 15.
Inner seal liner 8, pressure ring 6 and gear cap 4 are provided between the trocar sheath 9 and the central canal 10；The trocar sheath 9
Inwall is provided with lobe.The upper end contact box cupling 2 of the gear cap 4, the pressure ring 6 and inner seal liner 8 are located under the gear cap 4
Between end and the lobe；The second fluid cylinder lid 11 can be along the outer wall upward sliding of the trocar sheath 9, so as to will be described
7 compression-expansion of outside seal.Wherein, the inner seal liner 8 can be graphite-seal ring, and the outside seal 7 can be packing element.
The anchor mechanism is sheathed on outside first connecting tube 33；The anchor mechanism is included positioned at the first piston
20 and the locking tube 19 below upper cone 23, slips 24, lower cone 27, and the lower cone 27 connection base 31；Institute
State base 31 to be located at below lower cone 27；
The lower section of first connecting tube 33 is provided with the deblocking closing piece 32 coordinated with the base 31；The central canal 10
The lower section that deblocking closing piece 32 is located on outer wall is provided with undergauge section 35, and the undergauge section 35 can destroy the deblocking closing piece 32 and institute
State the cooperation of base 31.Wherein, intermediate 34 can be provided between base 31 and deblocking closing piece 32, the intermediate 34 and base 31
It is fixedly connected, same engagement between intermediate 34 and deblocking closing piece 32, so as to prevent the two upper and lower relative movement.
The top connection 1 is provided with exterior protrusion, and the box cupling 2 is provided with internal projection portion；The internal projection portion is in the evagination
Above the portion of rising, the exterior protrusion can promote the internal projection portion.
Elastic mechanism is provided between the slips 24 and the lower cone 27 and first connecting tube 33；The elastic machine
Structure connects first connecting tube 33 by shear pin；The elastic mechanism can be cut off the shear pin after accumulation of energy and push away
The dynamic lower cone 27.
The elastic mechanism includes solving seal ring 25, thrust ring 26, spring 28, non-return ring 29, shearing ring 30；The elastic machine
Structure is located at the top of the deblocking closing piece 32 and the lower section of the upper cone 23；The thrust ring 26 is sheathed on the deblocking
Ring 25 is outer with the promotion solution seal ring 25；Thrust ring 26 described in 28 one end contact of the spring, shearing ring described in other end contact
30；The non-return ring 29 is located between the shearing ring 30 and the lower cone 27, and the inwall of the lower cone 27 is provided with and institute
State the helical teeth of the cooperation of shearing ring 30；The shear pin connects the shearing ring 30 and first connecting tube 33.
When setting, fireflood packer lower end seat of receiving is gone into the well, after reaching precalculated position, oil pipe is suppressed.Work as pressure
When reaching certain value, locking tube 19 is moved downward under the effect of the pressure, meanwhile, first piston 20 is also under pressure together
Slips 24 is pushed down on, pin after active force reaches certain value on slips 24 is cut off, slips 24 is stuck on sleeve pipe, while lock
Tight teeth between pipe 19 and retaining ring 22 are pinned, and prevent slips 24 from loosening.
Meanwhile, spacing closing piece 18 and central canal 10 depart from, as the continuation of pressure increases.The pressure of the second liquid outlet output
Promote the second fluid cylinder lid 11 up, cut off and set pin 13.During second fluid cylinder lid 11 is up, drive the second fluid cylinder pipe 12,
First fluid cylinder is moved upwardly together, the compression outside seal 7 of the second fluid cylinder lid 11 so that 7 compression-expansion of outside seal is in sleeve pipe
Complete to set on wall.
When deblocking is needed, the outer upper lifting pipe post of well drives top connection 1 to cut off deblocking pin 3.Now, 18 He of spacing closing piece
Central canal 10 is in disengaged position, so as to carry central canal 10 by the frictional force that need to only overcome inner seal liner 8.
During upper carrying, the undergauge section 35 of central canal 10 is gradually promoted to and is in sustained height position with deblocking closing piece 32
Put, now, deblocking closing piece 32 loses supporting role of the central canal 10 to him, unseals the undergauge section that closing piece 32 drops to central canal 10
35, it is broken so as to unseal the jigsaw fit between closing piece 32 and base 31, deblocking closing piece 32 loses the limit to lower cone 27
Make and use.So as to lower cone 27 can glide, slips 24 loses the supporting role of lower cone 27, completes deblocking.
If 27 excessive clamping of lower cone and when cannot move down, continue upper lifting pipe post, the exterior protrusion and box cupling of top connection 1
2 internal projection portion contacts and promotes box cupling 2 up, and box cupling 2 drives the second connecting tube 15 and the first connecting tube 33 up.First connects
Adapter 33 drives elastic mechanism up by shear pin.Wherein, solve seal ring 25 and can prop up upper cone 23, now, upper cone 23
Meeting compression spring 28, makes 28 accumulation of energy of spring.Meanwhile, the helical teeth on helical teeth and lower cone 27 on non-return ring 29 tangles only to be formed
Return.When the strength of spring 28 reaches certain value, 28 power of spring cuts off shear pin, and the accumulation of energy effect of spring 28 can be to lower cone
27 form a very big downward thrusts, and the thrust can promote lower cone 27 to move downward and complete slips 24 and unseal.It is this
Mode is the pressure deblocking mode when normal deblocking cannot be completed.Complete to continue to increase tonnage after slips 24 is unsealed
External seal shakedown is completed the deblocking of whole packer by upper lifting pipe post.
Herein cited any digital value all include between lower limit to higher limit with the lower value of an incremented and
The all values of upper value, the interval that there are at least two units between any lower value and any much higher value.For example, such as
Fruit elaborates that the value of the quantity or process variable (such as temperature, pressure, time etc.) of a part is from 1 to 90, preferably from 20
To 80, more preferably from 30 to 70, then purpose is to illustrate that such as 15 to 85,22 are also clearly listed in the description arrives
68th, 43 to 51,30 to 32 is equivalent.For the value less than 1, suitably think that a unit is 0.0001,0.001,0.01,0.1.
These are only intended to the example clearly expressed, it is believed that the numerical value enumerated between minimum and peak is possible to
Combination is all expressly set forth in the description in a similar manner.
Unless otherwise stated, all scopes all include all numerals between end points and end points.It is used together with scope
" about " or " approximate " be suitable for two end points of the scope.Thus, " about 20 to 30 " be intended to cover " about 20 to about
30 ", at least including the end points for indicating.
The all articles for disclosing and reference material, including patent application and publication, for various purposes by quoting knot
Together in this.The term " substantially by ... constitute " of description combination should include determined by element, composition, part or step and reality
Other elements, composition, part or step without the basic novel feature for affecting the combination in matter.Using term "comprising" or
" including " is describing the combination of element here, composition, part or step it is also contemplated that basic by these elements, composition, part
Or the embodiment that step is constituted.Here by using term " can with ", it is intended to which illustrate that " can with " include is described any
Attribute is all optional.
Multiple element, composition, part or step can be provided by single integrated component, composition, part or step.Alternative
Ground, single integrated component, composition, part or step can be divided into detached multiple element, composition, part or step.It is used for
The open "a" or "an" of description element, composition, part or step is not said to exclude other elements, composition, part
Or step.
It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouching
State, many embodiments and many applications outside the example for being provided will all be aobvious and easy for a person skilled in the art
See.Therefore, the scope of this teaching should not be determined with reference to foregoing description, but should with reference to claims and this
The four corner of the equivalent possessed by a little claim is determining.For comprehensive purpose, all articles and with reference to including special
The disclosure of profit application and bulletin is all by reference to being incorporated herein.Theme disclosed herein is omitted in aforementioned claim
Any aspect is not intended to abandon the body matter, also should not be considered as inventor the theme is not thought of as it is disclosed
A part for utility model theme.
Claims (11)
1. a kind of fireflood packer, it is characterised in that include：
Central canal；
The sealing mechanism being sheathed on the central canal, oil jacket annular space can be insulated by which；
The anchor mechanism being sheathed on the central canal, the inwall of its energy anchor sleeve；
The actuating mechanism being sheathed on the central canal, which is located between the sealing mechanism and the actuating mechanism；It is described dynamic
Include first piston mechanism and second piston mechanism as mechanism；Anchor mechanism grappling set can be made during the first piston mechanism action
The inwall of pipe；When the second piston mechanism action sealing mechanism can be insulated oil jacket annular space.
2. packer as claimed in claim 1, it is characterised in that：The sealing mechanism, the second piston mechanism, described
One piston mechanism and the anchor mechanism are from top to bottom sequentially arranged.
3. packer as claimed in claim 2, it is characterised in that：The central canal is provided with the first liquid outlet and second goes out liquid
Hole；First liquid outlet is engaged with the first piston mechanism, second liquid outlet and second piston mechanism phase
Coordinate.
4. packer as claimed in claim 3, it is characterised in that：The first piston mechanism includes being sheathed on the central canal
On the first connecting tube, the first fluid cylinder being sheathed on outside first connecting tube, positioned at first connecting tube and described first
First piston and locking tube between fluid cylinder；
The upper end of first connecting tube connects the second piston mechanism, and lower end connects the anchor mechanism；
The first piston is located between the locking tube and first connecting tube；First liquid outlet is passed through described first
Annular space between connecting tube and first fluid cylinder, the anchor mechanism are located at the lower section of the first piston and locking tube；
The lower end of first fluid cylinder is provided with the retaining ring coordinated with the locking tube；The retaining ring prevent the locking tube to
Upper movement.
5. packer as claimed in claim 4, it is characterised in that：The second piston mechanism includes being sheathed on the central canal
On the second connecting tube, the second fluid cylinder being sheathed on outside second connecting tube, positioned at second connecting tube and described second
Second piston between fluid cylinder；
Second fluid cylinder includes the second fluid cylinder lid being fixedly connected and the second fluid cylinder pipe；The piston is located at second fluid cylinder
Between pipe and second connecting tube, the second piston is connected by setting pin with the second fluid cylinder lid；The sealing
Mechanism is located at the top of the second fluid cylinder lid；
The second piston is fixedly connected with second connecting tube；The upper end connection sealing mechanism of second connecting tube, its
Lower end connects first connecting tube；
Second connecting tube is provided with connecting hole, and second liquid outlet is passed through the second piston and institute by the connecting hole
State between the second fluid cylinder lid.
6. packer as claimed in claim 5, it is characterised in that：Lead between second connecting tube and first connecting tube
Cross adapter sleeve connection；The adapter sleeve is provided with the through hole communicated with first liquid outlet；Limiting lock is provided with the through hole
Block；The spacing closing piece is engaged with the central canal when locking tube is not moved.
7. packer as claimed in claim 6, it is characterised in that：The upper end of the central canal is connected with top connection；On described
Box cupling is arranged with outside joint；The top connection is connected by unsealing pin with the box cupling；
The sealing mechanism includes trocar sheath, the outside seal being sheathed on the trocar sheath, the regulation ring of connection coupling lower end；
The lower end of the trocar sheath connects the upper end of second connecting tube；
Inner seal liner, pressure ring and gear cap are provided between the trocar sheath and the central canal；The inwall of the trocar sheath is provided with convex
The portion of rising；The upper end contact box cupling of the gear cap, the pressure ring and inner seal liner are located at the lower end of the gear cap and the lobe
Between；
The second fluid cylinder lid can be along the outer wall upward sliding of the trocar sheath, so as to by the outside seal compression-expansion.
8. packer as claimed in claim 7, it is characterised in that：The anchor mechanism is sheathed on outside first connecting tube；
The anchor mechanism include upper cone below the first piston and the locking tube, slips, lower cone and it is described under
The base of cone connection；The base is located at below lower cone；
The deblocking closing piece with the base engagement is provided with below first connecting tube；Solution is located on the outer wall of the central canal
Undergauge section is provided with below block block, the undergauge section can destroy the cooperation of the deblocking closing piece and the base.
9. packer as claimed in claim 8, it is characterised in that：The top connection is provided with exterior protrusion, and the box cupling is provided with
Internal projection portion；Above the exterior protrusion, the exterior protrusion can promote the internal projection portion in the internal projection portion.
10. packer as claimed in claim 9, it is characterised in that：The slips and the lower cone are connected with described first
Elastic mechanism is provided between pipe；The elastic mechanism connects first connecting tube by shear pin；The elastic mechanism exists
The shear pin can be cut off after accumulation of energy and the lower cone is promoted.
11. packers as claimed in claim 10, it is characterised in that：The elastic mechanism includes solving seal ring, thrust ring, bullet
Spring, non-return ring, shearing ring；The elastic mechanism is located at the top of the deblocking closing piece and the lower section of the upper cone；It is described
It is outer to promote the solution seal ring that thrust ring is sheathed on the solution seal ring；Thrust ring described in the spring one end contact, other end top
To the shearing ring；The non-return ring is located between the shearing ring and the lower cone, the inwall of the lower cone be provided with
The helical teeth that the shearing ring coordinates；The shear pin connects the shearing ring and first connecting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621033095.8U CN206071523U (en) | 2016-08-31 | 2016-08-31 | Packer for fireflooding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621033095.8U CN206071523U (en) | 2016-08-31 | 2016-08-31 | Packer for fireflooding |
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| Publication Number | Publication Date |
|---|---|
| CN206071523U true CN206071523U (en) | 2017-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621033095.8U Active CN206071523U (en) | 2016-08-31 | 2016-08-31 | Packer for fireflooding |
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| Country | Link |
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| CN (1) | CN206071523U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502585A (en) * | 2019-01-30 | 2020-08-07 | 中国石油天然气股份有限公司 | Internal sealing tool for fireflooding |
| CN111852381A (en) * | 2019-04-28 | 2020-10-30 | 中国石油天然气股份有限公司 | Fire-driving packer |
-
2016
- 2016-08-31 CN CN201621033095.8U patent/CN206071523U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502585A (en) * | 2019-01-30 | 2020-08-07 | 中国石油天然气股份有限公司 | Internal sealing tool for fireflooding |
| CN111852381A (en) * | 2019-04-28 | 2020-10-30 | 中国石油天然气股份有限公司 | Fire-driving packer |
| CN111852381B (en) * | 2019-04-28 | 2022-08-05 | 中国石油天然气股份有限公司 | Fire-driving packer |
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