CN103628833A - Top support type automatic grouting valve type float valve - Google Patents
Top support type automatic grouting valve type float valve Download PDFInfo
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- CN103628833A CN103628833A CN201310261238.5A CN201310261238A CN103628833A CN 103628833 A CN103628833 A CN 103628833A CN 201310261238 A CN201310261238 A CN 201310261238A CN 103628833 A CN103628833 A CN 103628833A
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- top support
- float valve
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Abstract
The invention discloses a top support type automatic grouting valve type float valve. The top support type automatic grouting valve type float valve is characterized in that a float valve body is mounted inside a float valve connector, and a valve top support device is welded inside the float valve body. A valve is hinged to a valve type valve body seat of the float valve body. Elastic force of a torsional spring on the valve type valve body seat enables the valve type valve body seat to be closed by the valve when the valve is in a free state. The closing spring force for automatic closing of the valve of the valve type float valve and the force for flowing towards the inside of a tube due to the inside and outside differential pressure of fluid inside a well can be balanced by the top support device according to the principle that a top support spring has certain support force (the spring force can be adjusted by the way of changing the size of the spring). A top support rod enables the valve to be in a slightly open state all the time, a channel is formed, and the purpose of automatic grouting is achieved. When well kick or blowout happens to the inside of the tube, the valve is under the action of the fluid flowing towards the inside the tube, the top support spring is compressed by the top support rod, the top support rod retracts the inside of a top support box, the valve is closed, the purpose of a check valve is achieved, the well kick and blowout accident inside the tube is prevented, and the defect that automatic grouting can not be achieved by an existing valve type float valve is overcome.
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.When reaching certain value, plays the flow velocity of the tube fluids such as well kick, blowout the effect of ball-and-seat, 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 support top formula automatic grouting valve float valve.Its principle be according to support top spring, have that the principle balance of certain support force closes that spring force that valve type float valve valve closes and borehole fluid inside and outside differential pressure cause automatically toward mobile power in pipe, propping up push rod makes its valve all the time in crack state, form passage, realize the object of automatic grouting.Valve push rod compression support top spring under the effect of working fluid in pipe while there is well kick or blowout in pipe, a push rod is retracted in a top box, and valve is closed, and plays the object of ball-and-seat, prevents from managing interior well kick, gas blowout accident.Avoid existing drawback that can not automatic grouting with valve type float valve.
The object of the invention is to complete like this:
Support top formula automatic grouting valve float valve comprises float valve joint, float valve and valve support top installation composition.Float valve by upper valve body, upper sealing ring, gasket ring, in sealing ring, valve valve block, valve, torsion spring, lower seal form.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.In the valve valve block inner chamber of valve hinge opposite side, be welded with valve and prop up ejection device, it consists of a push rod, pressure transfer hole, a top box, support top spring, support top lid, check pin.Prop up push rod passes from support top lid, push rod and support top lid respectively have a shoulder mutually to hang in support top lid not to be ejected, support top lid connects with a top box with screw thread, on support top lid, have and screw and loosen the instrument eyelet that support top lid is used, the eyelet UNICOM of an eyelet and support top box body wherein, check pin prevents that through this eyelet support top lid from getting loose, the periphery that props up top box and support top lid evenly has several pressure transfer holes, an inner chamber welding of propping up top box and valve valve block when ejection device is propped up in welding.
The beneficial effect of advantage of the present invention and generation is:
1, the present invention is simple in structure, adopts conventional part assembling, is easy to processing, reasonable and compact in structure, operation sequence is simple, easy-to-use, effectively prevented drilling fluid, landwaste and high-pressure oil gas stream is by refluxing in drilling tool, avoid managing the risk of interior blowout, and cost is low, safe and reliable.
2, after field trial success of the present invention, while applying, not only do not stop lower brill (lower oil pipe) the operation operation of being in the milk, because not being the row of closing, reduced pressure exciting, can accelerate drilling rod (oil pipe) lowering velocity, save a large amount of lower brills (lower oil pipe) time.
3, the present invention has not only reduced post workman's labour intensity, and the while can be avoided the lock of tool drilling occurring not in time because stopping tripping operation activity, accelerates oil-gas exploration progress.
Accompanying drawing explanation
Fig. 1 is sectional view of the present invention.
Fig. 2 is that the present invention props up ejection device enlarged drawing.
The specific embodiment
As shown in Figure 1, a kind of support top formula automatic grouting valve float valve comprises float valve joint 1, float valve and valve support top installation composition.Float valve by upper valve body 2, upper sealing ring 3, gasket ring 4, in sealing ring 5, valve valve block 6, valve 7, torsion spring 8, lower seal 9 form.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.In valve valve block 6 inner chambers of valve 7 hinge opposite side, be welded with valve and prop up ejection device, it consists of a push rod 10, pressure transfer hole 11, a top box 12, support top spring 13, support top lid 14, check pin 15.Prop up push rod 10 passes from support top lid 14, push rod 10 and support top lid 14 respectively have a shoulder mutually to hang in support top lid 14 not to be ejected, support top lid 14 use screw threads connect with a top box 12, on support top lid 14, there is the instrument eyelet that screws and loosen support top lid 14 use, the eyelet UNICOM of an eyelet and top box 12 bodies wherein, check pin 15 prevents that through this eyelet support top lid 14 from getting loose, the periphery that props up top box 12 and support top lid 14 evenly has several pressure transfer holes 11, when ejection device is propped up in welding, only propping up top box 12, welds with the inner chamber of valve valve block 6.
Several pressure transfer holes 11 that the periphery of top box 12 and support top lid 14 is opened can make a push rod suffered mutual balance of hydraulic pressure 10 Shang Xia, guarantee to prop up the impact that push rod 10 is not subject to ambient pressure environment.On top cover 14, have the instrument eyelet that screws and loosen support top lid 14 use, process the special tool that screws and loosen support top lid 14 being convenient for changing accessory in an ejection device, regulate support top power and the upkeep operation of an ejection device.
Assemble valve and prop up ejection device, then valve is propped up in valve valve block 6 inner chambers that ejection device is welded to valve 7 hinge opposite side, only a welding top box 12.The position when welding position that valve props up ejection device is acted on the top of propping up push rod 10 after the force compresses on valve and closes a little less than valve 7 by the minimum fluid pressure refluxing in pipe with a push rod 10, to guarantee that valve 7 fully contacts with float valve end face.
When propping up ejection device, welding valve only the welding of the inner chamber of a top box 12 and valve valve block 6, to be convenient for changing support top spring 13 and a push rod 10, carrys out the suitable aperture of governor valve 7.Should reach the object of automatic grouting, also will be in generator tube well kick, even play the effect of ball-and-seat during blowout.
Claims (1)
1. a support top formula automatic grouting valve float valve comprises float valve joint (1), float valve and valve support top installation composition, it is characterized in that float valve is by 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) forms, 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), in valve valve block (6) inner chamber of valve (7) hinge opposite side, be welded with valve and prop up ejection device, it is by a push rod (10), pressure transfer hole (11), prop up top box (12), support top spring (13), support top lid (14), check pin (15) forms, prop up push rod (10) passes from support top lid (14), push rod (10) and support top lid (14) respectively have a shoulder mutually to hang in support top lid (14) not to be ejected, support top lid (14) connects with a top box (12) with screw thread, on support top lid (14), there is the instrument eyelet that screws and loosen support top lid (14) use, the eyelet UNICOM of an eyelet and top box (12) body wherein, check pin (15) prevents that through this eyelet support top lid (14) from getting loose, the periphery that props up top box (12) and support top lid (14) evenly has several pressure transfer holes (11), when propping up ejection device, welding only a top box (12) and the inner chamber of valve valve block (6) are welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310261238.5A CN103628833A (en) | 2013-06-16 | 2013-06-16 | Top support type automatic grouting valve type float valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310261238.5A CN103628833A (en) | 2013-06-16 | 2013-06-16 | Top support type automatic grouting valve type float valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103628833A true CN103628833A (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310261238.5A Pending CN103628833A (en) | 2013-06-16 | 2013-06-16 | Top support type automatic grouting valve type float valve |
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| Country | Link |
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| CN (1) | CN103628833A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195753A (en) * | 2020-09-09 | 2021-01-08 | 天津由鑫建筑材料制造有限公司 | Grouting metal corrugated pipe for steel bar anchoring and machining method thereof |
-
2013
- 2013-06-16 CN CN201310261238.5A patent/CN103628833A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195753A (en) * | 2020-09-09 | 2021-01-08 | 天津由鑫建筑材料制造有限公司 | Grouting metal corrugated pipe for steel bar anchoring and machining method thereof |
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Application publication date: 20140312 |
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| WD01 | Invention patent application deemed withdrawn after publication |