CN205714088U - A kind of novel float collar Support tray and use the float collar of this Support tray - Google Patents
A kind of novel float collar Support tray and use the float collar of this Support tray Download PDFInfo
- Publication number
- CN205714088U CN205714088U CN201620362433.6U CN201620362433U CN205714088U CN 205714088 U CN205714088 U CN 205714088U CN 201620362433 U CN201620362433 U CN 201620362433U CN 205714088 U CN205714088 U CN 205714088U
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- China
- Prior art keywords
- float collar
- support tray
- righting
- pilot hole
- valve
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Abstract
This utility model provides a kind of novel float collar Support tray, this Support tray includes a round platform base, described round platform base is provided with a boss, described base is provided around some through holes at boss, described boss is provided with one to be run through and is perpendicular to the righting pilot hole of round platform base, described righting pilot hole inwall is provided with some and holds sand launder, and the top of described righting pilot hole outer wall is taper.The taper seat at righting pilot hole outer wall top described in the utility model decreases the accumulation of plane on boss of the tiny sand grains in mud；During circulation and water filling are starched, lower valve compression spring moves down, the valve rod being linked togather with lower valve also moves down in righting pilot hole, circulation passage between upper valve and lower valve is in opening, after the cement injection end of job, under back-moving spring promotes, valve moves together with on valve rod, lower valve and upper valve realize being closing and sealing off, and prevent annular space cement mortar to fall to return in sleeve pipe or tail pipe, thus ensure that cementing quality.
Description
Technical field
This utility model relates to a kind of novel float collar Support tray and uses the float collar of this Support tray.
Background technology
Float collar is must indispensable well cementation adnexa in oil and gas industry sleeve pipe, the solid completion practice of tail pipe.Existing floating
The Support tray of hoop easily makes the silt particle in mud enter into the annular between valve rod and righting pilot hole during circulation well cleanup
Space, causes valve rod to be stuck because not having activity space, and upper and lower valve can not cut out sealing, causes back pressure valve malfunctioning, cement
Slurry falls to return sleeve pipe or tail pipe, " sausage-filling " phenomenon occurs, and cement mortar can not effectively block target zone, cause well cementing operation to lose
Lose.
Summary of the invention
In view of this, this utility model is directed to a kind of novel float collar Support tray and uses the float collar of this Support tray, with
Solve.
For reaching above-mentioned purpose, the technical solution of the utility model is achieved in that
A kind of novel float collar Support tray, this Support tray includes a round platform base, and described round platform base is provided with a boss, described
Base is provided around some through holes at boss, and described boss is provided with one to be run through and is perpendicular to the righting pilot hole of round platform base,
Described righting pilot hole inwall is provided with some and holds sand launder, and the top of described righting pilot hole outer wall is taper.
Wherein, described righting pilot hole inwall car has 3-5 bar to hold sand launder.
Further, the groove width of described appearance sand launder is 4-6mm, and groove depth is 1-1.5mm.
A kind of float collar using novel float collar Support tray, this float collar includes:
Float collar body, described float collar is the most internal is installed with normal sleeve button, upper valve and float collar Support tray, and described upper valve sets
Between described normal sleeve button and float collar Support tray and affixed with normal sleeve button；
The center of described upper valve is provided with the through hole being parallel to described float collar body central axle, and the cross section of described through hole is Y type；
Described lower valve shape such as mushroom, including head and connecting rod, the maximum gauge of described head is more than through-hole diameter, and supports
At the stub end of described through hole, connecting rod is connected with a valve rod, and described valve rod stretches into righting pilot hole, the diameter of described connecting rod
More than the diameter of righting pilot hole, the bottom surface of described lower valve head is connected by spring with Support tray round platform base.
Further, the length of described spring reset state is more than or equal to the distance between lower valve head bottom surface and Support tray.
Further, described connecting rod length less than the bottom surface of upper valve head to the distance between righting pilot hole.
Further, the through hole of described Support tray round platform base and described lower valve head are in the Projection Division split-phase of round platform base
Hand over.
Relative to prior art, a kind of novel float collar Support tray described in the utility model and use the float collar of this Support tray
Have the advantage that
The taper seat at righting pilot hole outer wall top of the present invention decreases the tiny sand grains in mud on boss
The accumulation of plane；During circulation and water filling are starched, lower valve compression spring moves down, and the valve rod that lower valve is linked togather is also in righting
Moving down in pilot hole, the circulation passage between upper valve and lower valve is in opening, after the cement injection end of job, at reset bullet
Spring promotes lower valve to move together with on valve rod, and lower valve and upper valve realize being closing and sealing off, and prevent annular space cement mortar to return set
In pipe or tail pipe, thus ensure that cementing quality.
Accompanying drawing explanation
The accompanying drawing constituting a part of the present utility model is further appreciated by of the present utility model for providing, and this practicality is new
The schematic description and description of type is used for explaining this utility model, is not intended that improper restriction of the present utility model.?
In accompanying drawing:
Fig. 1 is the structural representation of a kind of novel float collar Support tray described in this utility model embodiment；
Fig. 2 is the structural representation of a kind of float collar using novel float collar Support tray described in this utility model embodiment.
Description of reference numerals:
1-float collar body；2-Support tray；21-round platform base；22-boss；221-righting pilot hole；222-tapered portion；3-
Normal sleeve button；The upper valve of 4-；41-through hole；41-sealing ring；Valve under 5-；6-valve rod；7-spring.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in this utility model and the feature in embodiment can
To be mutually combined.
In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " laterally ", " on ", D score,
Orientation or the position relationship of the instruction such as "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description rather than instruction
Hint indication device or element must have specific orientation, with specific azimuth configuration and operation, be not understood that
For to restriction of the present utility model.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicate
Or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In description of the present utility model, unless separately
Being described, " multiple " are meant that two or more.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", should be interpreted broadly " being connected ", " connection ", for example, it may be fixing connection, it is also possible to be to removably connect, or integrally
Ground connects；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to by the indirect phase of intermediary
Even, can be the connection of two element internals.For the ordinary skill in the art, can be understood by concrete condition
Above-mentioned term concrete meaning in this utility model.
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As it is shown in figure 1, a kind of novel float collar Support tray 2, this Support tray 2 base is provided with a boss, and base is around round platform
Being provided with some through holes, boss is provided with one to be run through and is perpendicular to the righting pilot hole 22 of round platform base 21, in righting pilot hole 22
Wall car has 4 to hold sand launder 221, holds a width of 5mm of sand launder 221, is 1.2mm deeply, and the top of righting pilot hole 22 outer wall is taper, has
Effect reduces tiny sand grains and enters into the annular clearance between valve rod 6 and righting pilot hole 22, and annular clearance diametric(al) 1mm is left
Right.
As in figure 2 it is shown, be installed with normal sleeve button 3, upper valve (4) and float collar Support tray 2 in float collar, mark is located at by upper valve (4)
Between quasi-set pipe thread 3 and float collar Support tray 2 and affixed with normal sleeve button 3；The center of upper valve (4) is provided with and is parallel to float collar originally
The through hole 41 of body 1 central shaft, the cross section of through hole 41 is Y type；Lower valve 5 shape such as mushroom, the similar umbrella opened, including head and company
Extension bar, the maximum gauge of head is more than through hole 41 diameter, and is against the stub end of described through hole 41, and connecting rod is connected with a valve rod
6, valve rod 6 stretches into righting pilot hole 22, and the diameter of connecting rod is less than lower valve more than the diameter of righting pilot hole 22, connecting rod length
Bullet is passed through to the distance between righting pilot hole 22, the bottom surface of lower valve 5 head and Support tray 2 round platform base 21 in the bottom surface of 5 heads
Spring 7 connects, spring 7 reset state length more than lower valve 5 head bottom surface and Support tray 2 between distance, Support tray 2 round platform
The through hole of base 21 intersects in the projection section of round platform base 21 with the head of lower valve 5.
Float collar body 1 shown in Fig. 2 is connected in bunch tube or tail pipe string by cementing design and under the predetermined well that arrives
Deep position, with normal sleeve button 3 one end upwards, carry out cement injection operation after the circulation of abundant well-flushing, in circulation and water filling
During slurry, lower valve 5 compression reseting spring 7 moves down, and the valve rod 6 that lower valve 5 is linked togather also moves down in righting pilot hole 22,
Circulation passage between upper valve 4 and lower valve 5 is in opening, and after the cement injection end of job, back-moving spring 7 promotes lower valve 5
Moving together with on valve rod 6, lower valve 5 and upper valve 4 realize being closing and sealing off, and prevent annular space cement mortar to fall to return sleeve pipe or tail pipe
In.Thus ensure that cementing quality.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Within the spirit of utility model and principle, any modification, equivalent substitution and improvement etc. made, should be included in this utility model
Protection domain within.
Claims (7)
1. a novel float collar Support tray, this Support tray (2) includes that a round platform base (21), described round platform base (21) are provided with one
Boss, described base is provided around some through holes at boss, is characterised by: described boss is provided with one to be run through and is perpendicular to round platform
The righting pilot hole (22) of base (21), described righting pilot hole (22) inwall is provided with some and holds sand launder (221), described righting
The top of pilot hole (22) outer wall is taper.
One the most according to claim 1 novel float collar Support tray, it is characterised in that: described righting pilot hole (22) inwall
Car has 3-5 bar to hold sand launder (221).
One the most according to claim 1 and 2 novel float collar Support tray, it is characterised in that: the groove of described appearance sand launder (221)
A width of 4-6mm, groove depth is 1-1.5mm.
4. the float collar using novel float collar Support tray as claimed in claim 1, it is characterised in that: this float collar includes:
Float collar body (1), is installed with normal sleeve button (3), upper valve (4), lower valve (5) hold with float collar in described float collar body (1)
Pallet (2), described upper valve (4) is located between described normal sleeve button (3) and float collar Support tray (2), and with normal sleeve button (3)
Affixed；
The center of described upper valve (4) is provided with the through hole (41) being parallel to described float collar body (1) central shaft, described through hole (41)
Cross section is Y type；
Described lower valve (5) includes head and connecting rod, and the maximum gauge of described head is more than through hole (41) diameter, and is against described
The stub end of through hole (41), connecting rod is connected with a valve rod (6), and described valve rod (6) stretches into righting pilot hole (22), described connection
The diameter of bar is more than the diameter of righting pilot hole (22), the bottom surface of described lower valve (5) head and Support tray (2) round platform base (21)
Connected by spring (7).
A kind of float collar using novel float collar Support tray the most according to claim 4, it is characterised in that: described spring (7)
The length of reset state is more than or equal to the distance between lower valve (5) head bottom surface and Support tray (2).
6. according to a kind of float collar using novel float collar Support tray described in claim 4 or 5, it is characterised in that: described connection
Pole length less than the bottom surface of lower valve (5) head to the distance between righting pilot hole (22).
A kind of float collar using novel float collar Support tray the most according to claim 6, it is characterised in that: described Support tray
(2) through hole of round platform base (21) intersects in the projection section of round platform base (21) with the head of described lower valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620362433.6U CN205714088U (en) | 2016-04-25 | 2016-04-25 | A kind of novel float collar Support tray and use the float collar of this Support tray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620362433.6U CN205714088U (en) | 2016-04-25 | 2016-04-25 | A kind of novel float collar Support tray and use the float collar of this Support tray |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205714088U true CN205714088U (en) | 2016-11-23 |
Family
ID=57293735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620362433.6U Active CN205714088U (en) | 2016-04-25 | 2016-04-25 | A kind of novel float collar Support tray and use the float collar of this Support tray |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205714088U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761555A (en) * | 2016-12-21 | 2017-05-31 | 中国石油天然气股份有限公司 | The float valve and Double-pipe device of two-tube annular space |
| CN107131348A (en) * | 2017-05-23 | 2017-09-05 | 广船国际有限公司 | Valve rod support meanss |
-
2016
- 2016-04-25 CN CN201620362433.6U patent/CN205714088U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761555A (en) * | 2016-12-21 | 2017-05-31 | 中国石油天然气股份有限公司 | The float valve and Double-pipe device of two-tube annular space |
| CN107131348A (en) * | 2017-05-23 | 2017-09-05 | 广船国际有限公司 | Valve rod support meanss |
| CN107131348B (en) * | 2017-05-23 | 2019-04-26 | 广船国际有限公司 | Valve rod support device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211022 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: No.106 Huanghai Road, Binhai New Economic and Technological Development Zone, Tianjin 300457 Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |