CN103603614A - Pin snap type automatic grouting float valve - Google Patents
Pin snap type automatic grouting float valve Download PDFInfo
- Publication number
- CN103603614A CN103603614A CN201310254810.5A CN201310254810A CN103603614A CN 103603614 A CN103603614 A CN 103603614A CN 201310254810 A CN201310254810 A CN 201310254810A CN 103603614 A CN103603614 A CN 103603614A
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- valve
- float
- pin
- float valve
- hinge seat
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Abstract
The invention discloses a pin snap type automatic grouting float valve. The pin snap type automatic grouting float valve is characterized in that a float valve and a valve support mechanism are arranged inside a float valve connector, the valve body seat of the float valve is hinged to a valve body, a torsional spring arranged on the valve body and the valve body seat is provided with a elastic force which enables the valve body to close the valve body seat when the valve body is in a free state.
Description
Technical field
The present invention relates in brill (lower oil pipe) process, not stop lower brill (lower oil pipe) operation under oil drilling and take the mode of manual grouting, can automatic grouting.The flow velocity of turn on pump circulation or well kick, blowout tube fluid plays the effect of ball-and-seat while reaching certain value, the generation of gas blowout accident in pipe in the time of can stopping to pull out of hole.
Background technology
Under oil drilling, bore the effect of only playing ball-and-seat in (lower oil pipe) process because of the conventional valve type float valve in scene, and the restriction because of its bearing capacity and drilling rod (oil pipe) collapsoing strength, lower brill (lower oil pipe) is to prevent from valve type float valve from while causing losing efficacy because the pressure that bears is excessive, easily causing in pipe well kick even gas blowout accident, anti-drilling rod (oil pipe) are squeezed ruining and causing the reasons such as other complex accident during to certain well depth, must stop lower brill (lower oil pipe) operation and pour into mud in drilling rod (oil pipe), to avoid the generation of above-mentioned many complexity and accident.In addition because of the existence of ball-and-seat, in drilling rod (oil pipe) decentralization process for fear of the annular space causing because of drilling rod (oil pipe) row of closing high return that speed causes that excessive surge pressure causes the complex situations such as leakage control drilling rod (oil pipe) lowering velocity.This has not only delayed a large amount of lower brills (lower oil pipe) time, has increased workman's labour intensity, also likely stops tripping operation toward the differential sticking accident causing not in time because of drilling rod activity during mud grouting in drilling rod, retarding oil gas exploration progress.
Summary of the invention
For the problems of the above-mentioned existence of on-the-spot valve type float valve, object of the present invention has aimed to provide a kind of pin and has drawn break-off type automatic grouting valve float valve.Its principle is that the principle that has certain tensile strength balance to live button spring power according to support bar makes the valve of automatically closing valve type float valve in half-open position, forms fluid passage, realizes the object of automatic grouting.When in finishing drilling turn on pump direct circulation instantly or pipe, well kick, blowout mud act on power on valve and be greater than the tensile strength of support bar while spraying, support bar quilt is pulled off disconnected.After termination of pumping, valve is closed in time the object that plays ball-and-seat under the effect of spring force, avoids existing drawback that can not automatic grouting with valve type float valve.
The object of the invention is to complete like this:
Pin draws a break-off type automatic grouting valve float valve, comprises float valve joint, float valve and valve supporting mechanism form, and float valve comprises upper valve body, upper sealing ring, gasket ring, middle sealing ring, valve valve block, valve, torsion spring, lower seal, valve supporting mechanism comprises valve hinge seat, pin, support bar, pin, valve body hinge seat, upper valve body and the screwed connection of valve valve block, upper sealing ring, gasket ring, middle sealing ring is enclosed within on upper valve body, the internal diameter of the internal diameter of float valve and float valve joint is basically identical, in float valve inner nosepiece wall, there is convex circular bead surface, float valve is placed in float valve joint, the lower seal lower end that is enclosed within valve valve block lower end withstands on convex circular bead surface and forms and seal, when float valve joint is connected with drilling tool, the small end of tool joint withstands float valve, on valve valve block, be hinged with valve, one end of torsion spring is supported on valve, the other end of torsion spring is supported on valve valve block, the elastic force of torsion spring can make the closed valve valve block of living of valve during in free state at valve, valve top is welded with valve hinge seat, on valve valve block, be welded with valve body hinge seat, the two ends of support bar have pin-and-hole, use respectively pin and pin and valve hinge seat, valve body hinge seat connects, and supporting valve can not be closed with valve valve block.
The beneficial effect of advantage of the present invention and generation is:
1, the present invention is simple in structure, adopts the assembling of conventional part, is easy to processing, reasonable and compact in structure, and operation sequence is simple, easy-to-use, effectively prevented that drilling fluid, landwaste and high-pressure oil gas stream are by refluxing in drilling tool, and cost is low, safe and reliable.
2, after field trial of the present invention success, while applying, not only do not stop lower brill (lower oil pipe) the operation operation of being in the milk, because of not being the row of closing, reduced pressure excitement, can accelerate drilling rod (oil pipe) lowering velocity.This not only can save a large amount of lower brills (lower oil pipe) time, also can avoid the lock of tool drilling occurring not in time because stopping tripping operation activity.
3, support bar of the present invention is drillability material, and more tiny, easily by bit port, arrive shaft bottom, support bar after being drawn, fractureing can not cause any harm to drill bit by bit port during to shaft bottom, save drilling period, greatly reduce post workman's labour intensity, accelerate oil-gas exploration progress.
Accompanying drawing explanation
Fig. 1 is sectional view of the present invention.
Fig. 2 is valve supporting mechanism enlarged drawing of the present invention.
The specific embodiment
As shown in Figure 1, a kind of pin draws break-off type automatic grouting valve float valve, comprises float valve joint 1, float valve and valve supporting mechanism form, and float valve comprises upper valve body 2, upper sealing ring 3, gasket ring 4, middle sealing ring 5, valve valve block 6, valve 7, torsion spring 8, lower seal 9, valve supporting mechanism comprises valve hinge seat 10, pin 11, support bar 12, pin 13, valve body hinge seat 14, upper valve body 2 and the 6 use screwed connections of valve valve block, upper sealing ring 3, gasket ring 4, middle sealing ring 5 is enclosed within on upper valve body 2, the internal diameter of the internal diameter of float valve and float valve joint 1 is basically identical, at float valve joint 1 inwall, there is convex circular bead surface, float valve is placed in float valve joint 1, lower seal 9 lower ends that are enclosed within valve valve block 6 lower ends withstand on convex circular bead surface and form and seal, when float valve joint 1 is connected with drilling tool, the small end of tool joint withstands float valve, on valve valve block 6, be hinged with valve 7, one end of torsion spring 8 is supported on valve 7, the other end of torsion spring 8 is supported on valve valve block 6, the elastic force of torsion spring 8 can make the closed valve valve block 6 of living of valve 7 during in free state at valve 7, valve 7 tops are welded with valve hinge seat 10, on valve valve block 6, be welded with valve body hinge seat 14, the two ends of support bar 12 have pin-and-hole, use respectively pin 11 and pin 13 and valve hinge seat 10, valve body hinge seat 14 connects, support valve 7 can not with valve valve block 6 closures.
One end of support bar 12 is connected with valve hinge seat 10 use pins 11, and the other end is connected with valve body hinge seat 14 use pins 13, makes valve 7 form fluid passage in half-open position, reaches the object of automatic grouting during lower brill.When turn on pump direct circulation and well kick, blowout mud flow backwards, the power that when flow velocity reaches certain value, fluid acts on valve 7 can pull off disconnected support bar 12, valve 7 is closed voluntarily with valve valve block 6 under the effect of button spring 8 elastic force etc., play the effect of ball-and-seat, effectively prevented that drilling fluid, landwaste and high-pressure oil gas stream are by refluxing and cause managing interior blowout in drilling tool.
Claims (1)
1. a pin draws break-off type automatic grouting valve float valve, comprise float valve joint (1), float valve and valve supporting mechanism form, float valve comprises upper valve body (2), upper sealing ring (3), gasket ring (4), middle sealing ring (5), valve valve block (6), valve (7), torsion spring (8), lower seal (9), valve supporting mechanism comprises valve hinge seat (10), pin (11), support bar (12), pin (13), valve body hinge seat (14), upper valve body (2) and screwed connection for valve valve block (6), upper sealing ring (3), gasket ring (4), middle sealing ring (5) is enclosed within on upper valve body (2), the internal diameter of the internal diameter of float valve and float valve joint (1) is basically identical, at float valve joint (1) inwall, there is convex circular bead surface, float valve is placed in float valve joint (1), lower seal (9) lower end that is enclosed within valve valve block (6) lower end withstands on convex circular bead surface and forms and seal, when float valve joint (1) is connected with drilling tool, the small end of tool joint withstands float valve, on valve valve block (6), be hinged with valve (7), one end of torsion spring (8) is supported on valve (7), the other end of torsion spring (8) is supported on valve valve block (6), the elastic force of torsion spring (8) can make the closed valve valve block (6) of living of valve (7) during in free state at valve (7), valve (7) top is welded with valve hinge seat (10), on valve valve block (6), be welded with valve body hinge seat (14), the two ends of support bar (12) have pin-and-hole, use respectively pin (11) and pin (13) and valve hinge seat (10), valve body hinge seat (14) connects, support valve (7) can not with valve valve block (6) closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310254810.5A CN103603614A (en) | 2013-06-06 | 2013-06-06 | Pin snap type automatic grouting float valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310254810.5A CN103603614A (en) | 2013-06-06 | 2013-06-06 | Pin snap type automatic grouting float valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103603614A true CN103603614A (en) | 2014-02-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310254810.5A Pending CN103603614A (en) | 2013-06-06 | 2013-06-06 | Pin snap type automatic grouting float valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103603614A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989323A (en) * | 2015-06-15 | 2015-10-21 | 西南石油大学 | Double-sealing type overturn plate floating valve |
-
2013
- 2013-06-06 CN CN201310254810.5A patent/CN103603614A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989323A (en) * | 2015-06-15 | 2015-10-21 | 西南石油大学 | Double-sealing type overturn plate floating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140226 |