CN208702365U - Tree protector - Google Patents
Tree protector Download PDFInfo
- Publication number
- CN208702365U CN208702365U CN201821065881.5U CN201821065881U CN208702365U CN 208702365 U CN208702365 U CN 208702365U CN 201821065881 U CN201821065881 U CN 201821065881U CN 208702365 U CN208702365 U CN 208702365U
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- connector
- tube body
- tree protector
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model provides a kind of tree protector, comprising: tube body；Sliding sleeve, sliding sleeve are slidably connected with tube body, and have gap between sliding sleeve and tube body, and one end of sliding sleeve can be stretched out from tube body and extend into tubing nipple, so that the inner cavity of sliding sleeve is connected to well；The both ends of pressure stabilizing pipeline, pressure stabilizing pipeline are connected to inner cavity and gap respectively, to balance the pressure in sliding sleeve.The utility model solves the problems, such as the tree protector of fracture acidizing operation in the prior art, and structure is complicated.
Description
Technical field
The utility model relates to oil field operation technical fields, in particular to a kind of tree protector.
Background technique
In current deep-well acid fracturing transformation operation, well depth, due to frictional resistance is big, discharge capacity is small, in very great Cheng
The effect of fracture acidizing is reduced on degree.Currently, the various tree protector knots that China oil field is used in fracture acidizing operation
Structure is complex, and sealing performance is bad, and the latus rectum of protector is smaller, and frictional resistance is big, thus pressure drop is big, and discharge capacity is small, is unfavorable for oil well
Fracture acidizing, the especially fracture acidizing operation of deep-well, while the other production wellhead of lower pressure stages cannot be effectively protected
Device carries out safety work under high pressure.
Utility model content
The main purpose of the utility model is to provide a kind of tree protectors, to solve fracture acidizing in the prior art
The tree protector of operation the problem of structure is complicated.
To achieve the goals above, the utility model provides a kind of tree protector, comprising: tube body；Sliding sleeve, sliding sleeve with
Tube body is slidably connected, and has gap between sliding sleeve and tube body, and one end of sliding sleeve can be stretched out from tube body and to extend into oil pipe short
In section, so that the inner cavity of sliding sleeve is connected to well；The both ends of pressure stabilizing pipeline, pressure stabilizing pipeline are connected to inner cavity and gap respectively, with flat
The pressure to weigh in sliding sleeve.
Further, sliding sleeve includes: body part；One end that sliding sleeve protrudes into tubing nipple is arranged in guide pipe, guide pipe；It is close
The outside of guide pipe is arranged in sealing assembly, seal assembly, so that guide pipe seals guide pipe after protruding into tubing nipple and oil pipe is short
Gap between section.
Further, seal assembly includes: sealing cup, and sealing cup is set in the outside of guide pipe；Multiple sealing rings,
Sealing ring is arranged between sealing cup and guide pipe.
Further, tree protector further include: the lower end of tube body is arranged in protection pipe, protection pipe；Connecting flange, protection
Pipe is connect by connecting flange with tube body, and guide pipe is contained in protection pipe, and can be stretched out by the end of protection pipe.
Further, tree protector further includes multiple sealing elements, and sealing element is arranged between sliding sleeve and tube body, with sealing
Gap.
Further, pressure stabilizing pipeline includes: the first connector, and the first connector connect with tube body and is connected to gap；Second connects
Head, the second connector connect with tube body and are connected to inner cavity；Connecting tube, connecting tube are arranged between the first connector and the second connector,
To be connected to the first connector and the second connector.
Further, pressure stabilizing pipeline further includes balance plug, and balance plug is arranged in the first connector and/or the second connector
Interior, when the pressure when inner cavity is excessive, balance plug is opened, so that the pressure in sliding sleeve can be discharged by gap.
Further, connecting tube is high-pressure hose.
Further, pressure stabilizing pipeline further includes shut-off valve, is provided between connecting tube and the first connector and/or the second connector
Shut-off valve.
Further, tree protector further includes bypass line, and bypass line is connected to the side wall of inner cavity, to pass through bypass
Pipeline is passed through pressure into sliding sleeve.
Further, bypass line includes: promotion plug, promotes plug and connect with tube body；Union pipe nipple；Union ring, by
Nonyl ring set is located at outside union pipe nipple, and the inner ring protrusion of union ring is connected on the step surface of union pipe nipple, union ring and promotion
Union pipe nipple is connect by plug connection with plug is promoted.
Using the technical solution of the utility model, pass through the sliding sleeve of setting sliding, when sliding sleeve slide downward, the one of sliding sleeve
End is protruded into tubing nipple, so that the pressure in sliding sleeve enters directly into well, to reduce the pressure to well head, is played
Protective effect to well head.Above-mentioned setting structure is simple, directly avoids oil gas to the pressure of well head, pole using the setting of sliding sleeve
The complexity for reducing tree protector greatly is conducive to carry out fracture acidizing operation.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of the tree protector of the utility model.
Wherein, the above drawings include the following reference numerals:
10, tube body；20, sliding sleeve；21, body part；22, guide pipe；23, seal assembly；231, sealing cup；232, it seals
Circle；30, pressure stabilizing pipeline；31, the first connector；32, the second connector；33, connecting tube；34, plug is balanced；35, shut-off valve；40, it protects
Pillar；50, connecting flange；60, bypass line；61, plug is promoted；62, union pipe nipple；63, union ring；70, sealing element.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have and the application
The normally understood identical meanings of person of an ordinary skill in the technical field.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is usually
It is for direction shown in the drawings, or for component itself is on vertical, vertical or gravity direction；Together
Sample, it for ease of understanding and describes, " inside and outside " refers to the inside and outside of the profile relative to each component itself, but the above-mentioned noun of locality is simultaneously
It is not used in limitation the utility model.
In order to solve the problems, such as the tree protector of fracture acidizing operation in the prior art, structure is complicated, this is practical new
Type provides a kind of tree protector.
A kind of tree protector as shown in Figure 1, including tube body 10, sliding sleeve 20 and pressure stabilizing pipeline 30, sliding sleeve 20 and tube body
10 are slidably connected, and have gap between sliding sleeve 20 and tube body 10, and one end of sliding sleeve 20 can be stretched out and extend into from tube body 10
In tubing nipple, so that the inner cavity of sliding sleeve 20 is connected to well；The both ends of pressure stabilizing pipeline 30 are connected to inner cavity and gap respectively, with flat
The pressure to weigh in sliding sleeve 20.
The present embodiment is by the sliding sleeve 20 of setting sliding, and when 20 slide downward of sliding sleeve, oil pipe is protruded into one end of sliding sleeve 20
In pipe nipple, so that the pressure in sliding sleeve 20 enters directly into well, to reduce the pressure to well head, play to well head
Protective effect.Above-mentioned setting structure is simple, directly avoids oil gas to the pressure of well head using the setting of sliding sleeve 20, greatly reduces
The complexity of tree protector is conducive to carry out fracture acidizing operation.
In the present embodiment, sliding sleeve 20 includes body part 21, guide pipe 22 and seal assembly 23, and guide pipe 22 is arranged in cunning
Set 20 protrudes into one end of tubing nipple；The outside of guide pipe 22 is arranged in seal assembly 23, so as to protrude into oil pipe short for guide pipe 22
The gap between guide pipe 22 and tubing nipple is sealed after section.By the end of the body part 21 in sliding sleeve 20, guide pipe is set
22, so that the sealing that guide pipe 22 can play guiding role, and be arranged on guide pipe 22 to the sliding of sliding sleeve 20
Component 23 can seal the gap between guide pipe 22 and tubing nipple after guide pipe 22 extend into tubing nipple, to guarantee
Oil pressure will not act on well head.
Optionally, seal assembly 23 includes sealing cup 231 and multiple sealing rings 232, and sealing cup 231 is set in guiding
The outside of pipe 22；Sealing ring 232 is arranged between sealing cup 231 and guide pipe 22.The contact area of sealing cup 231 compared with
Greatly, and there is certain bearing capacity, it is thus possible to resist the pressure of oil pressure.Sealing cup 231 under pressure can
Gradually strut, so that rectangular sealing ring 232 is cooperated further to seal the gap between sealing cup 231 and guide pipe 22,
Guarantee the leakproofness between sliding sleeve 20 and tubing nipple.
In the present embodiment, tree protector further includes protection pipe 40 and connecting flange 50, and protection pipe 40 is arranged in tube body
10 lower end；Protection pipe 40 is connect by connecting flange 50 with tube body 10, and guide pipe 22 is contained in protection pipe 40, and can be by
The end of protection pipe 40 is stretched out.
Specifically, the lower thread of tube body 10 is connected with connecting flange 50, and is additionally provided with lock in the end of tube body 10
Ring is to guarantee the connection reliability and stability of tube body 10 Yu connecting flange 50.The lower end of connecting flange 50 is ring flange, accordingly
Ground, the upper end of protection pipe 40 also have ring flange, be bolted between two ring flanges it is integral, two ring flanges it
Between be provided with steel ring to seal the gap between two ring flanges, the lower end of protection pipe 40 is opening, and guide pipe 22 can be by opening
It is stretched out in mouthful, protective effect is played to the part that sliding sleeve 20 protrudes into tubing nipple by setting protection pipe 40, extended
The service life of tree protector entirety.
Optionally, tree protector further includes multiple sealing elements 70 i.e. O-shaped rubber ring and sealing ring, and the setting of sealing element 70 exists
Between sliding sleeve 20 and tube body 10, with seal clearance.
Specifically, be only threadedly coupled between connecting flange 50 and tube body 10, it is between the two and seamless, tube body 10 with
There is gap, sealing ring is arranged in the both ends in gap, clearance seal is got up with this, in the inner ring of sealing ring between sliding sleeve 20
With O-shaped rubber ring is provided on outer ring, the gap between sealing ring and sliding sleeve 20 and tube body 10 is sealed by O-shaped rubber ring,
To guarantee the leakproofness in gap, the pressure leakages in gap are prevented.
In the present embodiment, the sealing of 20 upper end of sliding sleeve and tube body 10 is realized by sliding sleeve 20 itself.Specifically,
The body part 21 of sliding sleeve 20 includes major diameter section and path section, and path section is located at below major diameter section, shape between path section and tube body 10
At above-mentioned gap, sealing element 70 be located at the lower end of sliding sleeve 20 and be located at path section end and tube body 10 between, major diameter section with
O shape rubber washer is provided only between tube body 10, the upper end of such sliding sleeve 20 just need not be in setting sealing ring, so as to avoid cunning
The sealing ring of the upper end in sliding process of set 20 generates the case where unexpected landing leads to seal failure, guarantees sliding sleeve 20 and tube body 10
Between clearance seal reliability.
In the present embodiment, pressure stabilizing pipeline 30 includes the first connector 31, the second connector 32 and connecting tube 33, the first connector 31
It connect with tube body 10 and is connected to gap；Second connector 32 connect with tube body 10 and is connected to inner cavity；The setting of connecting tube 33 is the
Between one connector 31 and the second connector 32, to be connected to the first connector 31 and the second connector 32.By pressure stabilizing pipeline 30 by sliding sleeve 20
Inner cavity be connected to gap, to play balanced action to the pressure of the inner cavity of sliding sleeve 20, avoid the pressure of the inner cavity of sliding sleeve 20
The excessive generation for leading to safety accident.
Optionally, pressure stabilizing pipeline 30 further includes multiple balance plugs 34, and the balance setting of plug 34 is in the first connector 31 and the
In two connectors 32, when the pressure when inner cavity is excessive, balance plug 34 is opened, so that the pressure in sliding sleeve 20 can be released by gap
It puts.Plug 34 is balanced by setting, so that pressure stabilizing pipeline 30 is balanced the pass of plug 34 when the pressure of inner cavity is in normal range (NR)
It closes, guarantees the normal work of sliding sleeve 20, when the pressure when inner cavity is excessive, pressure can squeeze balance plug 34 automatically and make pressure stabilizing
Pipeline 30 is connected to, and plays the role of pressure stabilizing and pressure release.
Preferably, connecting tube 33 is high-pressure hose, so that connecting tube 33 is able to bear biggish pressure.
Optionally, pressure stabilizing pipeline 30 further include shut-off valve 35, connecting tube 33 and the first connector 31 and/or the second connector 32 it
Between be provided with shut-off valve 35.Shut-off valve 35 facilitates staff to manually control the connection of pressure stabilizing pipeline 30 so that sliding sleeve 20 and
The pressure of gap can manually control.
In the present embodiment, tree protector further includes bypass line 60, and bypass line 60 is connected to the side wall of inner cavity, with
Pressure is passed through into sliding sleeve 20 by bypass line 60.Bypass line 60 facilitates the inner cavity to sliding sleeve 20 to be passed through pressure and completion
Subsequent oil-gas mining operation improves the practicability and versatility of tree protector.
Optionally, bypass line 60 includes promoting plug 61, union pipe nipple 62 and union ring 63, promotes plug 61 and tube body
10 connections；Union ring 63 is set in outside union pipe nipple 62, and the inner ring protrusion of union ring 63 is connected to the step of union pipe nipple 62
On face, union ring 63 is connect with plug 61 is promoted, and union pipe nipple 62 is connect with plug 61 is promoted.
Specifically, it is provided on the pipeline of bypass line 60 and promotes plug 61 and union pipe nipple 62, promote plug 61 and slided
Set 20 inner cavity connection, union pipe nipple 62 be connected to promoted the one end of plug 61 far from sliding sleeve 20 on, union ring 63 be set in by
Between nonyl pipe nipple 62 and promotion plug 61, union ring 63 is threadedly coupled with plug 61 is promoted, and union pipe nipple 62 is far from promotion plug
61 one end is inwardly formed protrusion, and union pipe nipple 62 has a step structure far from the one end for promoting plug 61, first will be by when installation
Nonyl pipe nipple 62, which is connected to, to be promoted on plug 61, is then set to union ring 63 on union pipe nipple 62 along the axial set of union pipe nipple 62,
And union ring 63 is tightened in and is promoted on plug 61, until the protrusion of union pipe nipple 62 is connected to the step surface of union pipe nipple 62
On, it is promoted on plug 61 so that union pipe nipple 62 is fixed on, realizes the connection promoted between plug 61 and union pipe nipple 62.
In the present embodiment, it is additionally provided with top connection in the top of sliding sleeve 20, is set between top connection and the end of sliding sleeve 20
It is equipped with and scrapes sand ring and anti-impact head, to play a protective role to sliding sleeve 20.
It can be seen from the above description that the above embodiments of the utility model achieve the following technical effects:
1, solving the problems, such as the tree protector of fracture acidizing operation in the prior art, structure is complicated；
2, simple and reasonable, reliable operation simplifies operation technique；
3, the operation effectiveness for improving fracture acidizing improves the safety and construction efficiency of underground work, reduces labour
Intensity saves a large amount of production cost.
Obviously, above-mentioned described embodiment is only the embodiment of the utility model a part, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The range of the utility model protection all should belong in the every other embodiment obtained.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, work, device, component and/or their combination.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that presently filed embodiment described herein can be in addition to illustrating herein
Or the sequence other than those of description is implemented.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (11)
1. a kind of tree protector characterized by comprising
Tube body (10)；
Sliding sleeve (20), the sliding sleeve (20) are slidably connected with the tube body (10), and the sliding sleeve (20) and the tube body (10)
Between there is gap, one end of the sliding sleeve (20) can be stretched out from the tube body (10) and extend into tubing nipple so that
The inner cavity of the sliding sleeve (20) is connected to well；
The both ends of pressure stabilizing pipeline (30), the pressure stabilizing pipeline (30) are connected to the inner cavity and the gap respectively, to balance
State the pressure in sliding sleeve (20).
2. tree protector according to claim 1, which is characterized in that the sliding sleeve (20) includes:
Body part (21)；
Guide pipe (22), the guide pipe (22), which is arranged, protrudes into one end of the tubing nipple in the sliding sleeve (20)；
Seal assembly (23), the seal assembly (23) are arranged in the outside of the guide pipe (22), so that the guide pipe
(22) gap sealed between the guide pipe (22) and the tubing nipple is protruded into after the tubing nipple.
3. tree protector according to claim 2, which is characterized in that the seal assembly (23) includes:
Sealing cup (231), the sealing cup (231) are set in the outside of the guide pipe (22)；
Multiple sealing rings (232), the sealing ring (232) setting the sealing cup (231) and the guide pipe (22) it
Between.
4. tree protector according to claim 2, which is characterized in that the tree protector further include:
Protection pipe (40), lower end of protection pipe (40) setting in the tube body (10)；
Connecting flange (50), the protection pipe (40) is connect by the connecting flange (50) with the tube body (10), described to lead
It is contained in the protection pipe (40), and can be stretched out by the end of the protection pipe (40) to pipe (22).
5. tree protector according to claim 1, which is characterized in that the tree protector further includes multiple sealing elements
(70), the sealing element (70) is arranged between the sliding sleeve (20) and the tube body (10), to seal the gap.
6. tree protector according to any one of claim 1 to 5, which is characterized in that pressure stabilizing pipeline (30) packet
It includes:
First connector (31), first connector (31) connect with the tube body (10) and are connected to the gap；
Second connector (32), second connector (32) connect with the tube body (10) and are connected to the inner cavity；
Connecting tube (33), the connecting tube (33) are arranged between first connector (31) and second connector (32), with
It is connected to first connector (31) and second connector (32).
7. tree protector according to claim 6, which is characterized in that the pressure stabilizing pipeline (30) further includes balance plug
(34), balance plug (34) setting is in first connector (31) and/or second connector (32), when the inner cavity
Pressure it is excessive when, the balance plug (34) is opened, so that the pressure in the sliding sleeve (20) can be released by the gap
It puts.
8. tree protector according to claim 6, which is characterized in that the connecting tube (33) is high-pressure hose.
9. tree protector according to claim 6, which is characterized in that the pressure stabilizing pipeline (30) further includes shut-off valve
(35), the cut-off is provided between the connecting tube (33) and first connector (31) and/or second connector (32)
Valve (35).
10. tree protector according to any one of claim 1 to 5, which is characterized in that the tree protector also wraps
Include bypass line (60), the bypass line (60) is connected to the side wall of the inner cavity, with by the bypass line (60) to
Pressure is passed through in the sliding sleeve (20).
11. tree protector according to claim 10, which is characterized in that the bypass line (60) includes:
It is promoted plug (61), the promotion plug (61) connect with the tube body (10)；
Union pipe nipple (62)；
Union ring (63), the union ring (63) is set in the union pipe nipple (62) outside, and the inner ring of the union ring (63)
Protrusion is connected on the step surface of the union pipe nipple (62), and the union ring (63) connect with the promotion plug (61), with
The union pipe nipple (62) is connect with the promotion plug (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821065881.5U CN208702365U (en) | 2018-07-05 | 2018-07-05 | Tree protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821065881.5U CN208702365U (en) | 2018-07-05 | 2018-07-05 | Tree protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208702365U true CN208702365U (en) | 2019-04-05 |
Family
ID=65937876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821065881.5U Active CN208702365U (en) | 2018-07-05 | 2018-07-05 | Tree protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208702365U (en) |
-
2018
- 2018-07-05 CN CN201821065881.5U patent/CN208702365U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105672943A (en) | Full-bore sliding sleeve with soluble structures | |
| CN205605160U (en) | Formula of breaking tail pipe blanking plug | |
| CN206693997U (en) | A kind of oil field is every excavating technology tubing string | |
| CN202628024U (en) | Hyperpressure packer device | |
| CN108119073A (en) | A kind of inverse circular sand washing adapter Flushing tubular column | |
| CN204311997U (en) | A kind of pressure break reverse circulation valve | |
| CN208702365U (en) | Tree protector | |
| CN203626793U (en) | Reliable differential pressure sliding sleeve | |
| CN103422833A (en) | Coal mine drilling blowout preventer | |
| CN104179676B (en) | Plunger and fluid end of fracturing pump | |
| CN103375159B (en) | A kind of many flowing holes sliding sleeve and horizontal well multistage fracturing sliding bush tubing string | |
| CN106761577A (en) | A kind of oil field is every excavating technology tubing string | |
| CN105134121A (en) | Screw pump blowout prevention supporting slips anchoring tool | |
| CN204060657U (en) | A kind of layered fracturing pipe string | |
| CN203603835U (en) | Underground dart-type blocking tool used for coiled tubing | |
| CN208845157U (en) | Gas lift liquid drainage system | |
| CN208777913U (en) | A kind of oil pipe threaded connector of multi-sealed hook-type screw thread | |
| CN110359875A (en) | Extend airlift unit and method | |
| CN209083249U (en) | A kind of split type oil pipe self-sealing blowout preventer | |
| CN203594402U (en) | Oil tube plugging device | |
| CN206495658U (en) | A kind of colliery hole packer | |
| CN209523733U (en) | A kind of storm valve | |
| CN208203208U (en) | Mandrel type casing hanger | |
| CN202954796U (en) | Pressure-proof explosion transfer device for oil-gas well | |
| CN205858302U (en) | A kind of quantitatively water distribution plug |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |