CN2903355Y - Self filling tongue sheet type floating hoop - Google Patents
Self filling tongue sheet type floating hoop Download PDFInfo
- Publication number
- CN2903355Y CN2903355Y CN 200520133549 CN200520133549U CN2903355Y CN 2903355 Y CN2903355 Y CN 2903355Y CN 200520133549 CN200520133549 CN 200520133549 CN 200520133549 U CN200520133549 U CN 200520133549U CN 2903355 Y CN2903355 Y CN 2903355Y
- Authority
- CN
- China
- Prior art keywords
- hyoplastron
- valve
- valve seat
- sheet type
- type floating
- 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.)
- Expired - Fee Related
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
An auto-filling tongue float hoop resolves the problem of frequent damage and short life in use of the current float hoop. Wherein, a valve seat (3) whose central hole is provided inside with a position limiting cylinder (4) is connected with the middle portion inside a shell (1) by screw threads. A tongue valve (6) is articulated with one side of the bottom of the valve seat (3) which is connected with the tongue valve (6) by a spring (7). The auto-filling tongue float hoop is resistant to high temperature, high pressure, oil, acid-base, and erosion.
Description
Technical field:
The utility model relates to a kind of instrument used in field, the oil field well cementation process, belongs to a kind of self filling tongue sheet type floating hoop.
Background technology:
The float collar float shoe is a crucial annex of bunch tube and well cementation process, effect is that guiding sleeve is gone into well smoothly, the suffered buoyancy of tubing string when adjusting setting of casing, prevent during well cementation that cement from flowing backwards back in the sleeve pipe and the bearing plug, cementing slurry is injected into casing annulus by this buoyancy aid, bears buffer brake then, so in the well cementation process, in case buoyancy aid lost efficacy, and will bring enormous economic loss.Existing float collar float shoe, though improve and improve having obtained aspect the seriation of product and the product quality, but development along with Daqing oil field and domestic and international oil field prospecting exploitation situation and technical matters, the difference of well cementation demand, and the continuous expansion of overseas market, to the kind of float collar float shoe with to high temperature resistant, high pressure resistant, acid and alkali-resistance, erosion resistance, the demand of the float collar float shoe that oil resistance is good constantly enlarges, existing float collar is to adopt whole vulcanized rubbers at the sealing surface of circulation time tradition one way valve, at the long-time circulation time of high pressure drilling liquid, may produce the rubber obscission.
Summary of the invention:
In order to solve the deficiency that exists in the background technology, the utility model provides a kind of self filling tongue sheet type floating hoop, and that this self filling tongue sheet type floating hoop has is high temperature resistant, high pressure resistant, oil resistant, acid and alkali-resistance, erosion resistant characteristics.
Technical solution adopted in the utility model is: this self filling tongue sheet type floating hoop comprises housing, the valve seat that is threaded in the middle part of housing is interior, and deck has position-limiting drum in the valve base center hole, and valve seat bottom surface one side hinge hyoplastron valve is connected with spring between valve seat and the hyoplastron valve.
Above-mentioned hyoplastron valve is made up of hyoplastron valve seat, rubber pad and gland successively, and the groove on the boss of gland and the hyoplastron valve seat in the round platform is threaded, and is filled with rubber pad between gland and the hyoplastron valve seat, gland and rubber pad formation truncated cone-shaped; Be with spring on the hinge axis of hyoplastron valve, both ends of the spring is stuck on valve seat and the hyoplastron valve; Position-limiting drum is fixed on the valve seat by jump ring.The housing upper port is equipped with cementing plug, and there is cylinder the cementing plug lower end, and the cylinder lower surface is a sphere.
The beneficial effects of the utility model are: adopt technique scheme, this kind float collar is to adopt position-limiting drum that the hyoplastron valve is opened, the hyoplastron valve directly is not subjected to erosion during forward circulation, not fragile long service life, this self filling tongue sheet type floating hoop is structurally on the sealing mechanism, just more can satisfy the variation of well cementation and complicated demand, the split setting-in structure of the hyoplastron valve of self filling tongue sheet type floating hoop and bonding technology high temperature resistant, high pressure rubber are to guaranteeing that cementing quality plays good effect more.
Description of drawings:
Fig. 1 is a structure sectional view of the present utility model.
1-housing, 2-cementing plug, 3-valve seat, 4-position-limiting drum, 5-jump ring, 6-hyoplastron valve, 7-spring, 8-cylinder among the figure, 9-hyoplastron valve seat, 10-gland, 11-rubber pad.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in fig. 1, this self filling tongue sheet type floating hoop comprises housing 1, the middle part valve seat 3 that is threaded in the housing 1, and deck has position-limiting drum 4 in valve seat 3 centre bores, and valve seat 3 bottom surfaces one side hinge hyoplastron valve 6 is connected with spring 7 between valve seat 3 and the hyoplastron valve 6.
Above-mentioned hyoplastron valve 6 is made up of hyoplastron valve seat 9, rubber pad 11 and gland 10 successively, and the groove on the boss of gland 10 and the hyoplastron valve seat 9 in the round platform is threaded, and is filled with rubber pad 11 between gland 10 and the hyoplastron valve seat 9, gland 10 and rubber pad 11 formation truncated cone-shaped.Be with spring 7 on the hinge axis of hyoplastron valve 6, spring 7 two ends are stuck on valve seat 3 and the hyoplastron valve 6.Position-limiting drum 4 is fixed on the valve seat 3 by jump ring 5.Housing 1 upper port is equipped with cementing plug 2, and there is cylinder 8 cementing plug 2 lower ends, and cylinder 8 lower surfaces are sphere.
In practical work process, the operating principle of self filling tongue sheet type floating hoop is unidirectional valve formula, utilizes the position of position-limiting drum 4 restriction hyoplastron valves 6, utilizes the impulse force of injecting of special cementing plug 2 to cut position-limiting drum 4, the bounce of spring 7 resets on the valve seat 3 hyoplastron valve 6, reaches the purpose of reverse sealing.
This kind float collar is to adopt position-limiting drum 4 that hyoplastron valve 6 is opened, hyoplastron valve 6 directly is not subjected to erosion during forward circulation, and the requirement of position-limiting drum 4 internal diameters mud circulation when meeting setting of casing fully, the structure design of hyoplastron valve 6 is to adopt the structure of inlaying the rubber cushion in the middle of the split, rubber layer is thicker, rubber is that difficult drop-off has increased sealing surface again like this, and the big more sealing of back buffer brake that resets is good more.
Self filling tongue sheet type floating hoop valve seat 3 is selected duralumin for use, hyoplastron valve 6 is selected duralumin setting-in acrylonitrile-butadiene rubber or setting-in fluorubber for use, because duralumin, acrylonitrile-butadiene rubber, they all have drillability fluorubber, and has a hard rigidity, heat resistance, stability, corrosion resistance, the oil resistivity of acrylonitrile-butadiene rubber, heat resistance, tightness is all fine, and fluorubber, performance with good be able to bear strong corrosion medium and strong oxidation, particularly resistance to acids and bases is better, also have good heat-resistant and better physical mechanical performance, 200 ℃ of long-term work temperature, cold tolerance is at-20 ℃--and 40 ℃, therefore we can be according to user's demand, and in different areas, different well depths adopts different seal gaskets.
The characteristics of self filling tongue sheet type floating hoop are when guiding sleeve enters well smoothly, simultaneously can in the sleeve pipe Be filled with mud, reduce sleeve pipe buoyancy, reduce sleeve pipe to the surge pressure of bottom, save setting of casing Time. Inject cementing plug after having descended sleeve pipe, cut off that the hyoplastron valve of float collar only just rises behind the position-limiting drum To circulation, oppositely closing one-way valve effect.
Claims (5)
1, a kind of self filling tongue sheet type floating hoop, comprise housing (1), it is characterized in that: valve seat (3) is threaded in the middle part of in the housing (1), deck has position-limiting drum (4) in valve seat (3) centre bore, valve seat (3) bottom surface one side hinge hyoplastron valve (6) is connected with spring (7) between valve seat (3) and the hyoplastron valve (6).
2, self filling tongue sheet type floating hoop according to claim 1, it is characterized in that: hyoplastron valve (6) is made up of hyoplastron valve seat (9), rubber pad (11) and gland (10) successively, the boss of gland (10) is gone up the interior groove of round platform with hyoplastron valve seat (9) and is threaded, be filled with rubber pad (11) between gland (10) and the hyoplastron valve seat (9), gland (10) constitutes truncated cone-shaped with rubber pad (11).
3, self filling tongue sheet type floating hoop according to claim 1 is characterized in that: be with spring (7) on the hinge axis of hyoplastron valve (6), spring (7) two ends are stuck on valve seat (3) and the hyoplastron valve (6).
4, self filling tongue sheet type floating hoop according to claim 3 is characterized in that: position-limiting drum (4) is fixed on the valve seat (3) by jump ring (5).
5, self filling tongue sheet type floating hoop according to claim 4 is characterized in that: housing (1) upper port is equipped with cementing plug (2), and there is cylinder (8) cementing plug (2) lower end, and cylinder (8) lower surface is a sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520133549 CN2903355Y (en) | 2005-12-02 | 2005-12-02 | Self filling tongue sheet type floating hoop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520133549 CN2903355Y (en) | 2005-12-02 | 2005-12-02 | Self filling tongue sheet type floating hoop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2903355Y true CN2903355Y (en) | 2007-05-23 |
Family
ID=38078763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520133549 Expired - Fee Related CN2903355Y (en) | 2005-12-02 | 2005-12-02 | Self filling tongue sheet type floating hoop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2903355Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742103A (en) * | 2014-01-02 | 2014-04-23 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Double guide rod coercing reset type float collar |
| CN110242227A (en) * | 2019-07-16 | 2019-09-17 | 邹城兖矿泰德工贸有限公司 | The dedicated integral drill rod of erosion control release |
-
2005
- 2005-12-02 CN CN 200520133549 patent/CN2903355Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742103A (en) * | 2014-01-02 | 2014-04-23 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Double guide rod coercing reset type float collar |
| CN103742103B (en) * | 2014-01-02 | 2016-09-14 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Double guide rod coercing reset type float collar |
| CN110242227A (en) * | 2019-07-16 | 2019-09-17 | 邹城兖矿泰德工贸有限公司 | The dedicated integral drill rod of erosion control release |
| CN110242227B (en) * | 2019-07-16 | 2024-02-13 | 山东兖能泰德重工有限公司 | Special integral drill rod for anti-impact pressure relief |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070523 Termination date: 20141202 |
|
| EXPY | Termination of patent right or utility model |