CN104314519B - Storm valve valve plate buffer gear - Google Patents
Storm valve valve plate buffer gear Download PDFInfo
- Publication number
- CN104314519B CN104314519B CN201410589783.1A CN201410589783A CN104314519B CN 104314519 B CN104314519 B CN 104314519B CN 201410589783 A CN201410589783 A CN 201410589783A CN 104314519 B CN104314519 B CN 104314519B
- Authority
- CN
- China
- Prior art keywords
- valve
- valve plate
- deep hole
- mandrel
- storm
- 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.)
- Active
Links
- 210000002445 nipple Anatomy 0.000 claims abstract description 18
- 239000003921 oil Substances 0.000 description 19
- 238000007789 sealing Methods 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanically-Actuated Valves (AREA)
- Safety Valves (AREA)
Abstract
A kind of storm valve valve plate buffer gear, the oil duct in relief valve main body is expanded as a deep hole, is mounted with throttling plunger and a spring in deep hole；The opening of deep hole connects a seal nipple, and the outside of seal nipple is provided with control oil pipe；Mandrel, valve plate and bearing pin it is provided with in relief valve main body；One end of mandrel is provided with back-moving spring, makes mandrel move in relief valve main body and backs down valve plate.The present invention, under the function not affecting storm valve free switch, can effectively prevent valve plate to be shattered the generation of accident when closed.
Description
Technical field
The present invention is a kind of during oil exploitation, and in (gas production) tubing string that recovers the oil, storm valve closes
Valve plate and the buffer gear of valve seat when closing.
Background technology
During oil and gas exploitation, in the flow string that storm valve is widely used,
When there are abnormal conditions in down-hole, storm valve can closing well rapidly, further with Accident prevention
Expand.
Current relief valve is all without valve plate buffer gear, when the pressure of mine gas or oil is higher, well
When the valve plate of lower relief valve closes half position, promote rapidly valve owing to producing throttling, gas or liquid
Plate is close to valve seat, in this process, can be shattered, cause downhole safety thing during valve plate contact valve seat
Therefore.
Summary of the invention
It is an object of the invention to provide a kind of storm valve valve plate buffer gear, to prevent downhole safety
Valve valve plate when closed is shattered, the generation caused the accident.
For achieving the above object, the storm valve valve plate buffer gear that the present invention provides, is by safety
Oil duct on valve body expands as a deep hole, is mounted with throttling plunger and a spring in deep hole；Deep hole
Opening connects a seal nipple, and the outside of seal nipple is provided with control oil pipe；Set in relief valve main body
There are mandrel, valve plate and bearing pin；One end of mandrel is provided with back-moving spring, makes mandrel in relief valve main body
Valve plate is backed down in motion；Valve plate is provided with torsion spring and bearing pin, makes valve plate rotate along bearing pin and realizes switch.
In described storm valve valve plate buffer gear, the opening of deep hole is threaded connection sealing
Joint.
In described storm valve valve plate buffer gear, control oil pipe is by locking pressure cap, promotion top
Set and tapered sleeve are connected on seal nipple.
The present invention's is profitable, the valve plate buffer gear arranged in storm valve top connection,
Do not affect under the function of storm valve free switch, can effectively prevent valve plate from being shaken when closed
The generation of broken accident.
Accompanying drawing explanation
Fig. 1 is storm valve valve plate buffer gear zoomed-in view when valve plate is opened of the present invention.
Fig. 2 is the storm valve valve plate buffer gear of the present invention state when storm valve is opened.
Fig. 3 is the storm valve valve plate buffer gear of the present invention zoomed-in view when valve plate is closed.
Fig. 4 is the storm valve valve plate buffer gear of the present invention state when storm valve is closed.
Primary clustering symbol description in accompanying drawing:
1 control oil pipe, 2 locking pressure caps, 3 top covers, 4 tapered sleeves, 5 seal nipples, 6 main bodys, 7
Throttling plunger, 8 springs, 9 sealing rings, 10 mandrels, 11 sealing rings, 12 back-moving springs, 13 pins
Axle, 14 torsion springs, 15 valve plates, 16 oil ducts, A represents that storm valve valve plate buffer gear is arranged on
Position in relief valve main body.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is elaborated.
As it is shown in figure 1, the storm valve valve plate buffer gear of the present invention is by known relief valve master
The oil duct 16 of body 6 expands as a deep hole, first disposes a spring 8 in deep hole, this spring 8 support
One throttling plunger 7.The opening of deep hole is threaded connection a seal nipple 5, by seal nipple 5
Throttling plunger 7 and spring 8 are compressed.This seal nipple 5 connects a control oil pipe 1, is anti-
Only because of the pressure of hydraulic oil, control oil pipe 1 is unclamped, by locking pressure cap 2, promote top cover 3
With tapered sleeve 4, control oil pipe 1 is pressed on seal nipple 5.
Being provided with mandrel 10, valve plate 15 and bearing pin 13 in relief valve main body 6, the two ends of mandrel 10 set
There is seal groove, in seal groove, be respectively provided with sealing ring 9 and sealing ring 11.Pacify on mandrel 10
Equipped with back-moving spring 12, mandrel 10 can move up and down in relief valve main body 6, back down valve plate 15,
Equipped with torsion spring 14 and bearing pin 13 on valve plate 15, valve plate 15 rotates along bearing pin 13, it is achieved switch.
In one embodiment of the invention, the wall thickness of relief valve main body 6 is 24mm, oil therein
The aperture in road 16 is 6mm.It is 14mm's that oil duct 16 at security principal 6 expands an aperture
Deep hole.The storm valve valve plate buffer gear of the present invention is specifically arranged on as identified in Fig. 2 and Fig. 4
The position of A.
In actually used, the valve plate buffer structure of the present invention is divided into two processes of opening and closing.
Opening process as it is shown in figure 1, high pressure liquid force feed enters in seal nipple 5 from control oil pipe 1,
Throttling plunger 7 compression spring 8 simultaneously is promoted to move right, at this moment seal nipple 5 and throttling plunger 7
Between gap relatively big, throttling will not be produced, hydraulic oil enters relief valve main body 6 by oil duct 16
In, hydraulic oil promotes mandrel 10, and compression spring 12 moves to the right side of drawing, overcomes torsion spring simultaneously
The power of 14, backs down 15 valve plates, it is achieved relief valve opens (as shown in Figure 2).
Closing process is as it is shown on figure 3, the oil pressure of control oil pipe 1 diminishes, and in Fig. 4, torsion spring 14 promotes
Valve plate 15 turns clockwise to the left, and back-moving spring 12 promotes mandrel 10 to be moved to the left, simultaneously by core
Spring 8 intracavity clamp-oned by hydraulic oil on the left of axle 10 drawing, spring 8 promote throttling plunger 7 to enter
In seal nipple 5, make the ebb interval of crossing between seal nipple 5 and throttling plunger 7 diminish, cross stream slow
Slowly, when valve plate 15 closes half position, valve plate 15 produces throttling in interior latus rectum, causes valve
The pressure differential at plate 15 two ends, valve plate 15 is pushed to drawing left end.Now produce due to throttling plunger 7
Throttling, caused stream slowly, and mandrel 10 is mobile slow on the left of drawing, and valve plate 15 is pressed in mandrel 10
On, will not be rapidly to anticlockwise, it is to avoid because producing collision and shatter valve plate, protect valve plate.
Claims (1)
1. a storm valve valve plate buffer gear, the oil duct in relief valve main body is expanded as
One deep hole, is mounted with throttling plunger and a spring in deep hole；
The opening of deep hole connects a seal nipple, and the outside of seal nipple is provided with control oil pipe, deep hole
Opening be threaded connection seal nipple, control oil pipe by locking pressure cap, promote top cover and cone
Set is connected on seal nipple；
Mandrel, valve plate and bearing pin it is provided with in relief valve main body；
One end of mandrel is provided with back-moving spring, makes mandrel move in relief valve main body and backs down valve plate；
Valve plate is provided with torsion spring and bearing pin, makes valve plate rotate along bearing pin and realizes switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410589783.1A CN104314519B (en) | 2014-10-28 | 2014-10-28 | Storm valve valve plate buffer gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410589783.1A CN104314519B (en) | 2014-10-28 | 2014-10-28 | Storm valve valve plate buffer gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104314519A CN104314519A (en) | 2015-01-28 |
| CN104314519B true CN104314519B (en) | 2016-09-28 |
Family
ID=52369815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410589783.1A Active CN104314519B (en) | 2014-10-28 | 2014-10-28 | Storm valve valve plate buffer gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104314519B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654210A (en) * | 2017-09-20 | 2018-02-02 | 新疆罡拓能源科技有限公司 | A kind of drilling well throttle type drill rod check valve |
| CN111155953B (en) * | 2020-01-04 | 2023-10-13 | 西南石油大学 | Intelligent drilling while-drilling stuck releasing device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7743833B2 (en) * | 2008-01-24 | 2010-06-29 | Baker Hughes Incorporated | Pressure balanced piston for subsurface safety valves |
| CN201265392Y (en) * | 2008-10-21 | 2009-07-01 | 西南石油大学 | High-pressure anti-corrosion downhole safety valve for oil gas well |
| FR2970998B1 (en) * | 2011-01-27 | 2013-12-20 | Weatherford Lamb | UNDERGROUND SAFETY VALVE INCLUDING SECURE ADDITIVE INJECTION |
| CN103821477B (en) * | 2014-03-17 | 2016-04-13 | 中国石油大学(华东) | Self-balancing storm valve |
| CN204140018U (en) * | 2014-10-28 | 2015-02-04 | 北京博德世达石油技术股份有限公司 | Storm valve valve plate buffer gear |
-
2014
- 2014-10-28 CN CN201410589783.1A patent/CN104314519B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104314519A (en) | 2015-01-28 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |