CN206158687U - Well-flushing oil production pipe column - Google Patents
Well-flushing oil production pipe column Download PDFInfo
- Publication number
- CN206158687U CN206158687U CN201621142046.8U CN201621142046U CN206158687U CN 206158687 U CN206158687 U CN 206158687U CN 201621142046 U CN201621142046 U CN 201621142046U CN 206158687 U CN206158687 U CN 206158687U
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- Prior art keywords
- well
- oil
- hole
- pipe
- moving member
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- 238000011010 flushing procedure Methods 0.000 title claims abstract description 57
- 238000004519 manufacturing process Methods 0.000 title abstract description 10
- 239000003129 oil well Substances 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 3
- 238000011001 backwashing Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 13
- 239000007789 gas Substances 0.000 description 7
- 239000002341 toxic gas Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The application provides a well-flushing oil production pipe column which is arranged in a sleeve of an oil-gas well and forms an oil sleeve annulus with the sleeve; it includes: an oil pipe disposed in the casing; the oil pump is connected to the lower end of the oil pipe; the first pipe is connected to the lower end of the oil well pump; the second pipe body is arranged in the first pipe body, and an annular cavity is formed between the two pipe bodies; a first through hole for communicating the oil sleeve annulus with the annular cavity is formed in the pipe wall of the first pipe body; a second through hole for communicating the annular cavity with the second pipe body is formed in the pipe wall of the second pipe body; a moving member disposed in the annular chamber and axially movable therein; the elastic piece is arranged in the annular cavity and applies upward reset force to the moving piece; a check valve disposed in the second tube; and the packer is connected with the first pipe body and is set on the inner wall of the casing pipe, and the packer is positioned between the first through hole and the second through hole and is positioned above an oil layer. The well-flushing oil production pipe column can be used for oil production, and can be used for backwashing the sleeve and the oil pipe.
Description
Technical field
The application is related to Oil/gas Well production technical field, more particularly to a kind of well-flushing flow string.
Background technology
The description of this part only provides the background information related to disclosure, and does not constitute prior art.
Well-flushing is a kind of construction operation relatively common during current Oil/gas Well is produced, and which is typically well-flushing medium by infusion
Equipment Jing pit shafts inject, and the dirt in pit shaft is carried to ground, to reach the medium character changed in pit shaft, remove oil jacket ring
In sky/oil pipe/oil well pump etc. it is dirty, dissolving oil reservoir association toxic gas (such as hydrogen sulfide gas), avoid oil reservoir dirty
The purpose of thing blocking.
Therefore, it is necessary to a kind of well-flushing device or tubing string are designed, to meet the demand of well-flushing and oil producing operation.
It should be noted that above the introduction of technical background is intended merely to the convenient technical scheme to the application carry out it is clear,
Complete explanation, and facilitate the understanding of those skilled in the art and illustrate.Can not be merely because these schemes be the application's
Background section is set forth and thinks that above-mentioned technical proposal is known to those skilled in the art.
Utility model content
The purpose of the application is to provide a kind of well-flushing flow string, to meet the demand of well-flushing and oil producing operation.
To achieve these goals, this application provides following technical scheme.
A kind of well-flushing flow string, the well-flushing flow string are lowered in the sleeve pipe of Oil/gas Well, the well-flushing flow string
Oil jacket annular space is formed between post and described sleeve pipe；The well-flushing flow string includes：
Oil pipe, the oil pipe are arranged in described sleeve pipe；
Oil well pump, the oil well pump are connected to the lower end of the oil pipe；
First body, first body are connected to the lower end of the oil well pump；
Second body, second body are arranged in first body, first body and second body
Between be formed with ring cavity；
Wherein, first through hole is provided with the tube wall of first body, the first through hole connects the oil jacket annular space
With the ring cavity；Be provided with the second through hole on the tube wall of second body, second through hole connect the ring cavity with it is described
The inner space of the second body；
Moving member, the moving member are arranged in the ring cavity, and the moving member can be axially moveable in the ring cavity；
Elastic component, the elastic component are arranged in the ring cavity, and the upper end of the elastic component is connected with the moving member,
The lower end of the elastic component is connected on the wall of the ring cavity；The elastic component applies reset force upwards to the moving member；
Check valve, the check valve are arranged in second body；The check valve can be limited into the second pipe
Liquid backflow in body；
Packer, the packer are connected with the first pipe body phase, inwall of the packer setting in described sleeve pipe
On；The packer is located between the first through hole and second through hole and is located above oil reservoir.
Preferably, the moving member is cylindrical in shape, and one or many is provided with the inwall and/or outer wall of tubular moving member
Individual groove, is provided with sealing ring in one or more described grooves.
Preferably, the closed at both ends of the ring cavity, the lower end of the elastic component are fixedly installed on the diapire of the ring cavity.
Preferably, the valve ball that the check valve is included valve seat and is adapted with the valve seat, the valve seat are fixedly installed on
On the inwall of second body, the valve ball can be seated on the valve seat.
Preferably, the ring cavity is separated into superposed Part I and positioned at second of bottom by the moving member
Point, the Part I is connected with the first through hole；
The moving member has the first operating position and the second operating position, when the moving member is in the described first work
During position, second through hole is connected with the Part II；When the moving member is in second operating position, institute
State the second through hole to be connected with the Part I at least in part.
Preferably, the packer is slip-type packer.
Preferably, the well-flushing flow string also includes the first centralizer, and first centralizer is connected with the oil pipe
Connect and positioned at the top of the oil well pump.
Preferably, the well-flushing flow string also includes the second centralizer, second centralizer and first body
It is connected.
Preferably, the first through hole is multiple, and multiple first through hole are circumferentially uniformly arranged on the first pipe
On the wall of body.
Preferably, second through hole is multiple, and multiple second through holes are circumferentially uniformly arranged on the second pipe
On the wall of body.
By technical scheme above, the beneficial effect of the application is：
1st, when needing to carry out clean-out service, flushing fluid is injected in oil jacket annular space, flushing fluid Jing first through hole enters ring
In chamber, the hydraulic work of flushing fluid on moving member, so as to promote moving member to move down, compression elastic piece.When elastic component quilt
After compression predetermined length, lower section of the moving member in the second through hole, so as to flushing fluid can enter the second body with the second through holes of Jing
In, so as to, in the presence of check valve Unidirectional flow-limiting, flushing fluid is returned along oil pipe, realize the backwash to sleeve pipe and oil pipe.
2nd, as oil jacket annular space has been carried out seal pack by packer, so as to, when oil reservoir association toxic gas, can in case
Only toxic gas Jing oil jackets annular space overflows well head, it is ensured that the production safety of Oil/gas Well.
3rd, the well-flushing flow string of the application can realize oil recovery production and the combination of clean-out service..Specifically, work as movement
Part can carry out oil producing operation when being in the first operating position, can carry out well-flushing work when moving member is in the second operating position
Industry, so as to be capable of achieving oil producing operation and clean-out service using a kind of tubing string so that underground work pipe column structure is relatively simple.
Other application field will become obvious according to description provided herein.The description of this utility model content and tool
Body example is only intended to the purpose for illustrating, it is not intended that limit scope of the present utility model.
Description of the drawings
Accompanying drawing described here is only used for task of explanation, and is not intended to by any way limit model disclosed in the present application
Enclose.In addition, shape and proportional sizes of each part in figure etc. are only schematic, the understanding to the application is used to help, and
It is not the shape and proportional sizes for specifically limiting each part of the application.Those skilled in the art, can under teachings of the present application
Implement the application to select various possible shapes and proportional sizes as the case may be.In the accompanying drawings：
Figure 1A be the application in moving member be in the first operating position when well-flushing flow string structural representation；
Figure 1B be the application in moving member be in the second operating position when well-flushing flow string structural representation.
Specific embodiment
It should be noted that when a parts are referred to as " being arranged at " another parts, it can be directly another
On individual parts or can also there are parts placed in the middle.When a parts are considered as " connection " another parts,
It can be directly to another parts or may be simultaneously present parts placed in the middle.Term as used herein is " perpendicular
It is straight ", " level ", "left", "right" and similar statement for illustrative purposes only, it is unique enforcement to be not offered as
Mode.
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 and the technical field for belonging to the application
The implication that technical staff is generally understood that is identical.Term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in restriction the application.Term as used herein "and/or" includes one or more
The arbitrary and all of combination of related Listed Items.
As shown in FIG. 1A and 1B, when respectively in the application, moving member is in the first operating position and the second operating position
Well-flushing flow string structural representation.The well-flushing flow string of the application is lowered in the sleeve pipe 5 of Oil/gas Well, the well-flushing
Oil jacket annular space 56 is formed between flow string and described sleeve pipe 5.
Figure 1A and Figure 1B is seen also, well-flushing flow string can include：Oil pipe 6, the oil pipe 6 are arranged on described sleeve pipe
In 5；Oil well pump 9, the oil well pump 9 are connected to the lower end of the oil pipe 6；First body 1, first body 1 are connected to institute
State the lower end of oil well pump 9；Second body 2, second body 2 are arranged in first body 1, first body 1 with
Ring cavity 12 is formed between second body 2；Wherein, first through hole 11 is provided with the tube wall of first body 1, it is described
First through hole 11 connects the oil jacket annular space 56 and the ring cavity 12；The second through hole is provided with the tube wall of second body 2
21, second through hole 21 connects the inner space of the ring cavity 12 and second body 2；Moving member 3, the moving member 3
It is arranged in the ring cavity 12, the moving member 3 can be axially moveable in the ring cavity 12；Elastic component 4, the elastic component 4
It is arranged in the ring cavity 12, the upper end of the elastic component 4 is connected with the moving member 3, the lower end connection of the elastic component 4
On the wall of the ring cavity 12；The elastic component 4 applies reset force upwards to the moving member 3；Check valve 8, it is described unidirectional
Valve 8 is arranged in second body 2；The check valve 8 can limit the liquid backflow in second body 2；Packing
Device 7, the packer 7 are connected with first body 1, and the packer 7 is set on the inwall of described sleeve pipe 5；It is described
Packer 7 is located between the first through hole 11 and second through hole 21 and is located above oil reservoir 22.
When needing to carry out clean-out service, flushing fluid is injected in oil jacket annular space 56, flushing fluid Jing first through hole 11 is entered
In ring cavity 12, the hydraulic work of flushing fluid on moving member 3, so as to promote moving member 3 to move down, compression elastic piece 4.Work as bullet
Property part 4 by compression predetermined length after, moving member 3 in the second through hole 21 lower section, so as to flushing fluid can be with the second through holes of Jing 21
Into in the second body 2, so as to, in the presence of 8 Unidirectional flow-limiting of check valve, flushing fluid is returned along oil pipe, realize to sleeve pipe and oil
The backwash of pipe.
In the present embodiment, for the flow of balanced flushing fluid, first through hole 11 and the second through hole 21 can be many
Individual, multiple first through hole 11 and multiple second through holes 21 are circumferentially uniformly arranged on the wall of the first body 1 and the second body 2 respectively
On.
In the present embodiment, moving member 3 is cylindrical in shape, and is provided with one on the inwall and/or outer wall of tubular moving member 3
Individual or multiple groove (not shown)s, are provided with sealing ring (not shown) in one or more grooves.
Moving member 3 is cylindrical in shape the shape that can be preferably adapted to the ring cavity 12 formed between the first body 1 and the second body 2
Shape, by arranging sealing ring on the inwall and/or outer wall of tubular moving member 3, can make moving member 3 and the first body 1
With the wall of the second body 2 keep it is in sealing contact, so as to when flushing fluid enter ring cavity 12 in and positioned at moving member 3 top when,
Can be formed in ring cavity 12 and be built the pressure, so as to apply to be allowed to the hydraulic action being axially moveable to moving member 3.
In the present embodiment, in the first body 1 and the closed at both ends of the second body 2, the lower end of elastic component 3 is solid for ring cavity 12
Surely it is arranged on the diapire of ring cavity 12.
By by ring cavity 12, in the first body 1 and the closed at both ends of the second body 2, then the two ends closed can be elastic component
4 setting provides link position.
In the present embodiment, the valve ball 82 that check valve 8 is included valve seat 81 and is adapted with valve seat 81, valve seat 81 are fixed and are set
Put on the inwall of the second body 2, valve ball 82 can be seated on valve seat 81.
In the present embodiment, packer 7 is used for sealed separation oil jacket annular space 56, and as packer 7 is located at first
The lower section of through hole 11, so as to when backwash, under the barrier effect of packer 7, Jing first leads to the flushing fluid in oil jacket annular space 56
Hole 11 is entered in ring cavity 12.
Further, since oil jacket annular space 56 has been carried out sealed separation by packer 7, so as to when 22 association toxic gas of oil reservoir
When, can prevent toxic gas Jing oil jackets annular space 56 from overflowing well head, it is ensured that the production safety of Oil/gas Well.
In order to reduce impact of the vibration of the generation when oil producing operation is carried out of oil well pump 9 to other equipment, packer 7 as far as possible
Preferably slip-type packer.The packer 7 of slip-type has anchor mechanism 71 and setting mechanism 72, wherein 71 anchor of anchor mechanism
It is scheduled on the inwall of sleeve pipe 5, such that it is able to be fixed to oil well pump 9, weakens the Oscillation Amplitude of oil well pump 9.Setting mechanism 72
Can set on the inwall of sleeve pipe 6, realize the seal pack to oil jacket annular space 56.
In the present embodiment, ring cavity 12 can be separated into superposed Part I 121 and is located at down by moving member 3
The Part II 122 in portion, Part I 121 are connected with first through hole 11；Moving member 3 has the first operating position and the second work
Make position, when mobile 3 in the first operating position, the second through hole 21 is connected with Part II 122；At moving member 3
When the second operating position, the second through hole 21 is connected with Part I 121 at least in part.
When moving member 3 be in the first operating position when, moving member 3 will carry out between first through hole 11 and the second through hole 21 every
Absolutely, oil recovery production can now be carried out.From being described above, when moving member 3 is in the second operating position, can now carry out
Clean-out service.Therefore, the well-flushing flow string of the application can realize recover the oil production and the combination of clean-out service, so as to use one
Plant tubing string and be capable of achieving oil producing operation and clean-out service so that underground work pipe column structure is relatively simple.
In the present embodiment, oil well pump 9 can adopt any appropriate existing construction.For example, oil well pump 9 can be wrapped
Valve ball 91 and valve seat 92 are included, valve ball 91 can be seated on valve seat 92.When sucker rod drives plunger up, valve
Ball 91 is seated on valve seat 92, realizes strike the oil；When sucker rod drives plunger descending, valve ball 91 departs from valve seat 92, former
Oil can be in pump core in oil well pump.
In the present embodiment, in order that downhole operation equipment can keep preferable with sleeve pipe 5 in running all the time
Trend, the well-flushing flow string can also include the first centralizer 10 and the second centralizer 11, the first centralizer 10 and oil pipe 6
It is connected and positioned at the top of oil well pump 9, the second centralizer 11 is connected with the first body 1.By in well-flushing flow string
Upper and lower is respectively provided with a centralizer, such that it is able to carry out righting to well-flushing flow string.
It should be noted that in the description of the present application, term " first ", " second " etc. are only used for describing purpose and difference
, there is no sequencing between the two in similar object, can not be interpreted as indicating or imply relative importance.Additionally,
In the description of the present application, unless otherwise stated, " multiple " are meant that two or more.
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 aforementioned claim 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 applicant the theme is not thought of as it is disclosed
A part for application theme.
Claims (10)
1. a kind of well-flushing flow string, the well-flushing flow string are lowered in the sleeve pipe of Oil/gas Well, the well-flushing flow string
Oil jacket annular space is formed between described sleeve pipe；Characterized in that, the well-flushing flow string includes：
Oil pipe, the oil pipe are arranged in described sleeve pipe；
Oil well pump, the oil well pump are connected to the lower end of the oil pipe；
First body, first body are connected to the lower end of the oil well pump；
Second body, second body are arranged in first body, between first body and second body
It is formed with ring cavity；
First through hole is provided with the tube wall of first body, the first through hole connects the oil jacket annular space and the ring
Chamber；The second through hole is provided with the tube wall of second body, second through hole connects the ring cavity and second body
Inner space；
Moving member, the moving member are arranged in the ring cavity, and the moving member can be axially moveable in the ring cavity；
Elastic component, the elastic component are arranged in the ring cavity, and the upper end of the elastic component is connected with the moving member, described
The lower end of elastic component is connected on the wall of the ring cavity；The elastic component applies reset force upwards to the moving member；
Check valve, the check valve are arranged in second body；The check valve can be limited in second body
Liquid backflow；
Packer, the packer are connected with the first pipe body phase, and the packer setting is on the inwall of described sleeve pipe；Institute
State packer to be located between the first through hole and second through hole and be located above oil reservoir.
2. well-flushing flow string as claimed in claim 1, it is characterised in that the moving member is cylindrical in shape, tubular movement
One or more grooves are provided with the inwall and/or outer wall of part, in one or more described grooves, sealing ring is provided with.
3. well-flushing flow string as claimed in claim 1, it is characterised in that the closed at both ends of the ring cavity, the elastic component
Lower end be fixedly installed on the diapire of the ring cavity.
4. well-flushing flow string as claimed in claim 1, it is characterised in that the check valve include valve seat and with the valve seat
The valve ball being adapted, the valve seat are fixedly installed on the inwall of second body, and the valve ball can be seated in the valve seat
On.
5. well-flushing flow string as claimed in claim 1, it is characterised in that the ring cavity is separated into and is located at by the moving member
The Part I on top and the Part II positioned at bottom, the Part I are connected with the first through hole；
The moving member has the first operating position and the second operating position, when the moving member is in first operating position
When, second through hole is connected with the Part II；When the moving member is in second operating position, described the
Two through holes are connected with the Part I at least in part.
6. well-flushing flow string as claimed in claim 1, it is characterised in that the packer is slip-type packer.
7. well-flushing flow string as claimed in claim 1, it is characterised in that the well-flushing flow string also includes the first righting
Device, first centralizer are connected with the oil pipe and positioned at the top of the oil well pump.
8. well-flushing flow string as claimed in claim 1, it is characterised in that the well-flushing flow string also includes the second righting
Device, second centralizer are connected with the first pipe body phase.
9. well-flushing flow string as claimed in claim 1, it is characterised in that the first through hole be it is multiple, multiple described the
One through hole is circumferentially uniformly arranged on the wall of first body.
10. well-flushing flow string as claimed in claim 1, it is characterised in that second through hole be it is multiple, multiple described the
Two through holes are circumferentially uniformly arranged on the wall of second body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621142046.8U CN206158687U (en) | 2016-10-20 | 2016-10-20 | Well-flushing oil production pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621142046.8U CN206158687U (en) | 2016-10-20 | 2016-10-20 | Well-flushing oil production pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206158687U true CN206158687U (en) | 2017-05-10 |
Family
ID=58653716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621142046.8U Active CN206158687U (en) | 2016-10-20 | 2016-10-20 | Well-flushing oil production pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206158687U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109289A (en) * | 2020-08-31 | 2022-03-01 | 中国石油化工股份有限公司 | Oil-water well washes debris collection device |
| CN114251058A (en) * | 2021-12-17 | 2022-03-29 | 盐城市东荣石油机械有限公司 | Layered oil production pipe column |
-
2016
- 2016-10-20 CN CN201621142046.8U patent/CN206158687U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109289A (en) * | 2020-08-31 | 2022-03-01 | 中国石油化工股份有限公司 | Oil-water well washes debris collection device |
| CN114109289B (en) * | 2020-08-31 | 2024-01-30 | 中国石油化工股份有限公司 | Oil-water well flushing sundry collecting device |
| CN114251058A (en) * | 2021-12-17 | 2022-03-29 | 盐城市东荣石油机械有限公司 | Layered oil production pipe column |
| CN114251058B (en) * | 2021-12-17 | 2023-08-25 | 盐城市东荣石油机械有限公司 | Layered oil production pipe column |
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