CN206668208U - The degradable preset bottom device of oil-water well - Google Patents
The degradable preset bottom device of oil-water well Download PDFInfo
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- CN206668208U CN206668208U CN201720305565.XU CN201720305565U CN206668208U CN 206668208 U CN206668208 U CN 206668208U CN 201720305565 U CN201720305565 U CN 201720305565U CN 206668208 U CN206668208 U CN 206668208U
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Abstract
A kind of preset bottom device of degradable oil-water well is the utility model is related to, it includes main body（1）, connecting tube（2）, anti-spray core（3）, sealing shroud（4）, bottom blocks up（5）And pressure cap（6）, bottom is blocked up（5）The outward flange of bottom is located at sealing shroud（4）With annular pressure cap（6）Between, outward flange（51）Upper surface and sealing shroud（4）Lower surface be engaged, lower surface and annular pressure cap（6）Upper surface be engaged, bottom is blocked up（5）Sealing shroud is mounted in sealing shroud from bottom to top for part above outward flange（4）Centre bore in and sealing shroud（4）Mutually sealing coordinates, and bottom is blocked up（5）To meet made of water degradation material, axial closing and the back-off goblet that Open Side Down.It is simple that oil pipe bottom is blocked using it, it is not necessary to which tripping in TO is extremely stifled, uses manpower and material resources sparingly, saves the time.It can effectively reduce the number that instrument is launched to underground on well, can greatly improve operating speed, can effectively improve production efficiency of oilfields.
Description
Technical field
It the utility model is related to petroleum tool, and in particular to a kind of ground dispenses the preset blowout hookup in bottom.
Background technology
In order to prevent from gushing on down-hole pressure, it is necessary in oil pipe most in advance after under the preset blowout hookup lower going-into-well of plain tubing
Lower end, which is installed, extremely to be blocked up, and is closed oil pipe lower end, feed liquor is unable in tubing string.But if oil pipe lower end opened, need
Dismounting could be completed from well to underground tripping in instrument extremely to block up, this operating process both expends the time, also has certain operation difficult
Degree.
The content of the invention
It is simple that the purpose of this utility model is to provide a kind of closure oil pipe bottom, it is not necessary to underground tripping in instrument from well
Can, which is opened, extremely blocks up, and uses manpower and material resources sparingly, the time saving degradable preset bottom device of oil-water well.
Technical solution of the present utility model is：It is stifled and annular including main body, connecting tube, anti-spray core, sealing shroud, bottom
Pressure cap, the lower end of main body are connected by internal thread with the top axial of connecting tube, and anti-spray core is arranged in main body, and sealing shroud is under
Upwards in the step trough above connecting tube bottom, on the upper surface and the upper surface of step trough downward of sealing shroud
It is engaged, annular pressure cap is arranged on the internal thread under connecting tube on mouth by external screw thread, and the outward flange of bottom is blocked up the bottom of located at
Between sealing shroud and annular pressure cap, the upper surface of outward flange is engaged with the lower surface of sealing shroud, lower surface is pressed with annular
The upper surface of cap is engaged, the stifled part above outward flange in bottom from bottom to top sealing shroud in the centre bore of sealing shroud with
Sealing shroud mutually seals cooperation, and bottom is blocked up to meet made of water degradation material, axial closing and the back-off goblet that Open Side Down.
It is of the present utility model to have the technical effect that：It is simple that oil pipe bottom is blocked using it, it is not necessary to underground tripping in from well
Instrument can, which is opened, extremely blocks up, and uses manpower and material resources sparingly, saves the time.It can effectively reduce time that instrument is launched to underground on well
Number, can greatly improve operating speed, can effectively improve production efficiency of oilfields.
Brief description of the drawings
Fig. 1 is the utility model embodiment sectional view.
Embodiment
As shown in figure 1, it includes main body 1, connecting tube 2, anti-spray core 3, sealing shroud 4, bottom stifled 5 and annular pressure cap 6, main body 1
Lower end be connected by internal thread with the top axial of connecting tube 2, anti-spray core 3 be arranged on main body 1 in, sealing shroud 4 is from bottom to top
In the step trough 21 above the bottom of connecting tube 2, upper surface and the upper surface of step trough 21 downward of sealing shroud 4
On be engaged, annular pressure cap 6 by external screw thread be arranged on 2 time mouths of connecting tube on internal thread on, located at bottom block up 5 bottoms outside
Flange 51 is between sealing shroud 4 and annular pressure cap 6, and the upper surface of outward flange 51 is engaged with the lower surface of sealing shroud 4, lower end
Face is engaged with the upper surface of annular pressure cap 6, and positioned at the part of the top of outward flange 51, sealing shroud is mounted in sealing from bottom to top at bottom stifled 5
Coordinate in the centre bore of set 4 with the sealing of the phase of sealing shroud 4, bottom stifled 5 for meet manufactured water degradation material, axial closing and be open to
Under back-off goblet.
Bottom stifled 5 is that back-off goblet can ensure that axial width is smaller, is more beneficial for the fast prompt drop within the time of needs of bottom stifled 5
Solution makes oil pipe smoothly turn on.
The outer wall that sealing shroud 4 coordinates with the sealing of the phase of connecting tube 2 is provided with seal groove and is provided with and sealed with the phase of connecting tube 2
The sealing ring 7 of cooperation, the inwall coordinated with the stifled 5 phases sealing in bottom are provided with seal groove and be provided with blocks up the sealing cooperation of 5 phases the bottom of with
Sealing ring 7.
Main body 1 is provided with what is be connected with top oil pipe axially to have the cylindrical body of through hole in the upper port of the through hole of main body 1
Internal thread, the lower section of the top internal thread hole of main body 1 is diameter through hole 11, diameter through hole 11 and the lower end internal thread hole of main body 1
Between through hole be undergauge through hole 12 that the diameter that is engaged with anti-spray core 3 is less than diameter through hole 11.Diameter through hole 11 with
The inwall of main body 1 between undergauge through hole 12 is from diameter through hole 11 to the up big and down small tapering transition of the transition of undergauge through hole 12
Hole 13.
Anti- spray core 3 is made up of 31, two claws 32 of core bar and stage clip 33, and the lower end of core bar 31 is provided with upper coarse and lower fine taper
Guide head 34, the top of taper guide head 34 are the thin straight section 35 of one section of cylinder, and the top of thin straight section 35 is more than carefully for one section of diameter
Straight section 35, the thick straight section 36 of cylinder for being slidingly sealed with the phase of main body undergauge through hole 12 cooperation, on the thick straight section 36 of core bar 31 axially
If it is separated at intervals to be provided with arterial highway seal groove and be separately installed with and is mutually slidingly sealed the close of cooperation with the inwall of main body undergauge through hole 12
Seal 7, the first from left right side of two claw 32 1 are separately mounted in the claw groove 37 in the side wall of core bar 31 above the thick position of straight section 36, and two
The oil pipe lower surface that the lower end of claw 32 is respectively hinged on core bar 31, upper end is connected with the upper end of main body 1 respectively upward is engaged,
Stage clip 33 is between two claws 32, both ends are engaged with the pressure spring slot 38 in the middle part of the opposite side of two claw 32 respectively, core bar 31
Top provided with the position of claw groove 37 is provided with the cylindrical upper straight section 39 being engaged with being connected to the oil pipe endoporus of the top of main body 1.
After the degradable preset bottom device of oil-water well is with oil pipe lower going-into-well lower certain time, bottom is blocked up made of degradation material
5 can be dissolved in well liquid in degraded automatically, so that oil pipe lower end automatically opens up, be operated without entering drop-in tool to well,
Use more convenient.
Claims (5)
1. the degradable preset bottom device of oil-water well, it includes main body（1）, connecting tube（2）, anti-spray core（3）, sealing shroud（4）, bottom
It is stifled（5）With annular pressure cap（6）, main body（1）Lower end pass through internal thread and connecting tube（2）Top axial be connected, anti-spray core（3）
Installed in main body（1）It is interior, sealing shroud（4）Connecting tube is arranged on from bottom to top（2）Step trough above bottom（21）It is interior, sealing
Set（4）Upper surface and step trough（21）It is engaged on upper surface downward, annular pressure cap（6）It is arranged on by external screw thread
Connecting tube（2）On internal thread on lower mouth, it is characterised in that：Blocked up the bottom of located at（5）The outward flange of bottom（51）Positioned at sealing shroud
（4）With annular pressure cap（6）Between, outward flange（51）Upper surface and sealing shroud（4）Lower surface be engaged, lower surface with annular
Pressure cap（6）Upper surface be engaged, bottom is blocked up（5）Positioned at outward flange（51）Sealing shroud is mounted in sealing shroud from bottom to top for the part of top
（4）Centre bore in and sealing shroud（4）Mutually sealing coordinates, and bottom is blocked up（5）To meet made of water degradation material, axial closing and opening
The downward back-off goblet of mouth.
2. the degradable preset bottom device of oil-water well as claimed in claim 1, it is characterised in that the sealing shroud（4）With connecting
Adapter（2）The outer wall that mutually sealing coordinates is provided with seal groove and is provided with and connecting tube（2）The sealing ring that mutually sealing coordinates
（7）, block up the bottom of with（5）The inwall that mutually sealing coordinates is provided with seal groove and is provided with and blocked up the bottom of with（5）The sealing that mutually sealing coordinates
Circle（7）.
3. the degradable preset bottom device of oil-water well as claimed in claim 1, it is characterised in that the main body（1）For axial direction
Cylindrical body with through hole, main body（1）The internal thread being connected with top oil pipe, main body are provided with the upper port of through hole（1）On
The lower section of square internal thread hole is diameter through hole（11）, diameter through hole（11）With main body（1）It is logical between the internal thread hole of lower end
The anti-spray cores of Kong Weiyu（3）The diameter being engaged is less than diameter through hole（11）Undergauge through hole（12）.
4. the degradable preset bottom device of oil-water well as claimed in claim 3, it is characterised in that the diameter through hole（11）
With undergauge through hole（12）Between main body（1）Inwall is from diameter through hole（11）To undergauge through hole（12）Transition it is up big and down small
Tapering transition hole（13）.
5. the degradable preset bottom device of oil-water well as claimed in claim 3, it is characterised in that the anti-spray core（3）By core
Bar（31）, two claws（32）And stage clip（33）Form, core bar（31）Lower end be provided with upper coarse and lower fine taper guide head（34）,
Taper guide head（34）Top is one section of thin straight section of cylinder（35）, thin straight section（35）Top be more than thin straight section for one section of diameter
（35）And main body undergauge through hole（12）Mutually it is slidingly sealed the cylindrical thick straight section of cooperation（36）, core bar（31）Thick straight section（36）
If above axially-spaced offer arterial highway seal groove and be separately installed with and main body undergauge through hole（12）Inwall is mutually slidingly sealed
The sealing ring of cooperation（7）, two claws（32）One the first from left right side is separately mounted to thick straight section（36）Core bar above position（31）Side wall
On claw groove（37）It is interior, two claws（32）Lower end be respectively hinged at core bar（31）Upper, upper end upward respectively with main body（1）On
The oil pipe lower surface of end connection is engaged, stage clip（33）Installed in two claws（32）Between, both ends respectively with two claws（32）Phase
To the pressure spring slot of middle side part（38）It is engaged, core bar（31）Provided with claw groove（37）The top of position is provided with being connected to main body
（1）The cylindrical upper straight section that the oil pipe endoporus of top is engaged（39）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720305565.XU CN206668208U (en) | 2017-03-27 | 2017-03-27 | The degradable preset bottom device of oil-water well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720305565.XU CN206668208U (en) | 2017-03-27 | 2017-03-27 | The degradable preset bottom device of oil-water well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206668208U true CN206668208U (en) | 2017-11-24 |
Family
ID=60372865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720305565.XU Expired - Fee Related CN206668208U (en) | 2017-03-27 | 2017-03-27 | The degradable preset bottom device of oil-water well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206668208U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488251A (en) * | 2018-11-20 | 2019-03-19 | 中国石油天然气股份有限公司 | Mechanism for presetting dissolving medium and using method |
-
2017
- 2017-03-27 CN CN201720305565.XU patent/CN206668208U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488251A (en) * | 2018-11-20 | 2019-03-19 | 中国石油天然气股份有限公司 | Mechanism for presetting dissolving medium and using method |
| CN109488251B (en) * | 2018-11-20 | 2024-03-26 | 中国石油天然气股份有限公司 | Mechanism for presetting dissolution medium and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200724 Address after: 157000 Heilongjiang District, Mudanjiang City, Dongan Province East seven road Xin'an Street Woodworking Machinery Factory Patentee after: Mudanjiang Jinheng Petroleum Machinery Technology Co.,Ltd. Address before: 157000 Heilongjiang Mudanjiang District, Dongan District, Xin'an Street East seven road Woodworking Machinery Factory Patentee before: MUDANJIANG BOSHI PETROLEUM MACHINERY TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |