CN103590784A - Blowout control leakproof wellhead safety device - Google Patents
Blowout control leakproof wellhead safety device Download PDFInfo
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- CN103590784A CN103590784A CN201310513322.1A CN201310513322A CN103590784A CN 103590784 A CN103590784 A CN 103590784A CN 201310513322 A CN201310513322 A CN 201310513322A CN 103590784 A CN103590784 A CN 103590784A
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- Prior art keywords
- valve
- valve rod
- cover
- hand wheel
- bearing
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- 229920001971 elastomer Polymers 0.000 claims abstract description 14
- 239000005060 rubber Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 11
- 230000002265 prevention Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 9
- 210000004907 gland Anatomy 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000007257 malfunction Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000004382 potting Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000191291 Abies alba Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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- Details Of Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention relates to the technical field of wellhead safety devices, in particular to a blowout control leakproof wellhead safety device. Two ends of a hand wheel rod are provided with bearings. The hand wheel rod is connected with a valve rod through a hand wheel rod pin. The outside of a bearing cap is provided with a valve rod cover. The valve rod cover is provided with a second O-shaped rubber seal ring. Both a first O-shaped rubber seal ring and a straight-through forced filling oil cup are mounted on a housing of the bearing cap. A valve rod is mounted in an inner hole of a bonnet. Valve rod stuffing is disposed between the valve rod and the bonnet. One side of the valve rod stuffing is provided with a stuffing pressure cover. The bonnet is connected with an upper combined flange body, and the connections of the bonnet and the upper combined flange body are provided with a middle hole spacer. A gate is connected with the valve rod in a threaded manner. One side of each valve seat ring is provided with a seal ring. A valve seat body is provided with a valve seat seal ring and mounted inside the upper combined flange body. The valve seat rings are disposed in a hole of a fixing plate. Two sides of the fixing plate are limited on two sides of the gate through guide support plates. The blowout control leakproof wellhead safety device is safe, energy saving, environment friendly, economical, timely, simple to operate, and higher in operating efficiency.
Description
Technical field:
The present invention relates to well head safe device technique field, be specifically related to a kind of blowout prevention anti-leak well head safe device.
Background technology:
Well head is the device for the production of oil, gas being formed by assembling parts such as four-way, valves, be connected with casing head, as shown in Figure 1 and Figure 2, under impact because of factors such as medium, environment in exploitation, manufacturing process, often make wellhead sealing mechanism lose the effect of sealing and cause leakage, stuck.Particularly the main control valve of well head, because bearing cut-out or the connection effect of gas well high-pressure natural gas.In production and application, and valve does not carry out in the situation of switching manipulation for a long time, once occur blow-by, stuck as easy as rolling off a log generation toxic gas, inflammable gas leak and the serious consequence of gusher, disused well occurs that above fault not only directly affects the normal operation of integral device, and the natural environments such as the crowd of perimeter zone, well site, animals, crops, river are had to great threat and potential safety hazard.For solving such accident, guarantee to produce normal operation, the normal function of restorer, the usual method that need to carry out in-situ processing is to change valve; A kind of method is to carry out kill-job.Do so on the one hand and waste time and energy, and cost is high; Well killing fluid can cause certain pollution to gas-bearing formation on the other hand, has reduced well capacity, has affected post-job output, sometimes even cause by well kill, the serious consequence of gusher.Another kind method is the valve that changes with pressure, can with pressurely change the man power and material that valve needs large (conventionally with pressure change valve once need the expense of more than 20 ten thousand yuan), and the safety factor of this operation excessive risk is not large.
Summary of the invention:
The object of this invention is to provide a kind of blowout prevention anti-leak well head safe device, it has safety, energy-conserving and environment-protective, and economy, timeliness, simple to operate, improved operating efficiency.
In order to solve the existing problem of background technology, the present invention adopts following technical scheme: it comprises O shape rubber seal 1, straight forced filling oil cup 2, stop-leak compound injection valve 3, bearing 4, flashboard 5, valve seat body 6, sealing ring 7, seat ring 8, valve seat insert 9, fixed head 10, guiding support plate 11, O shape rubber seal 2 12, valve gap 13, mesopore gasket ring 14, upper Ifold flange body 15, valve stem packing 16, gland 17, handwheel lever pin 18, valve rod 19, bearing cover 20, valve rod cover 21, hand wheel pole 22, the two ends of hand wheel pole 22 are provided with bearing 4, and the outside of bearing 4 is provided with bearing cover 20, hand wheel pole 22 is connected with valve rod 19 by handwheel lever pin 18, the arranged outside of bearing cover 20 has valve rod cover 21, and O shape rubber seal 2 12 is installed on valve rod cover 21, O shape rubber seal 1, straight forced filling oil cup 2 is installed on the shell of bearing cover 20, valve rod 19 is arranged in the endoporus of valve gap 13, valve stem packing 16 is arranged between valve rod 19 and valve gap 13, one side of valve stem packing 16 is provided with gland 17, valve gap 13 is connected with upper Ifold flange body 15, and junction is provided with mesopore gasket ring 14, flashboard 5 is threaded connection with valve rod 19, one side of seat ring 8 is respectively arranged with sealing ring 7, valve seat insert 9 is installed on valve seat body 6, valve seat body 6 is arranged on Ifold flange body 15 inside, and seat ring 8 is arranged in the hole of fixed head 10, and the both sides of fixed head 10 are limited in the both sides of flashboard 5 by the support plate 11 that leads.
Using method of the present invention is: first blowout prevention anti-leak well head safe device is substituted to conventional reduced flange and be installed on the oil pipe four-way and the position between main valve of well head, when the main valve of well head breaks down cisco unity malfunction need to change time, should first back out valve rod cover 21, then outer six sides on special opening handle are inserted in the interior hexagonal hole on hand wheel pole 22, turn clockwise the flashboard under full-gear 5 to closed condition (close after putting in place and should counterclockwise rotate 1/4～1/2 circle), cut off runner, change main valve, after replacing completes, rotate counterclockwise dedicated handle flashboard 5 unlatchings (clockwise direction rotation 1/4～1/2 circle is answered in unlatching after putting in place) are then taken off to dedicated handle, again valve rod cover 21 is tightened, whole process ends with system can be recovered normal operation.
The present invention has following beneficial effect:
One, safety: carry out selection, technique, the experiment of well head safe device in the worst situations of factor such as applying working condition condition, medium.Under low temperature and hot environment, can normally use, switch freely.In the medium of water, gas, oil, carry out low pressure and high-potting, 15 minutes leakproofs of pressurize.Through every technical data of shaft mouth test safety device repeatedly, can be adapted to all kinds of well heads at different working conditions, rapidly, effectively solve this type of security incident;
Two, energy-saving and environmental protection: cost is low, blowout prevention fast, anti-leak when well head leaks; Make well head can drop into rapidly in normal production status; Execute-in-place non-environmental-pollution;
Three, economy, timeliness: weather operation entirely, can in 5 minutes, react, in 2-6 hour, handle accident well, and well head pressure is large and small unrestricted, not only economic, practical, safety; Simple to operate, fast improved greatly operating efficiency.
Accompanying drawing explanation:
Fig. 1 is the structural representation of well head christmas tree in prior art;
Fig. 2 is the structural representation of well head reduced flange in prior art;
Fig. 3 is sectional view of the present invention;
Fig. 4 is stereogram of the present invention.
The specific embodiment:
Referring to Fig. 3 and Fig. 4, this specific embodiment adopts following technical scheme: it comprises O shape rubber seal 1, straight forced filling oil cup 2, stop-leak compound injection valve 3, bearing 4, flashboard 5, valve seat body 6, sealing ring 7, seat ring 8, valve seat insert 9, fixed head 10, guiding support plate 11, O shape rubber seal 2 12, valve gap 13, mesopore gasket ring 14, upper Ifold flange body 15, valve stem packing 16, gland 17, handwheel lever pin 18, valve rod 19, bearing cover 20, valve rod cover 21, hand wheel pole 22, the two ends of hand wheel pole 22 are provided with bearing 4, and the outside of bearing 4 is provided with bearing cover 20, hand wheel pole 22 is connected with valve rod 19 by handwheel lever pin 18, the arranged outside of bearing cover 20 has valve rod cover 21, and O shape rubber seal 2 12 is installed on valve rod cover 21, O shape rubber seal 1, straight forced filling oil cup 2 is installed on the shell of bearing cover 20, valve rod 19 is arranged in the endoporus of valve gap 13, valve stem packing 16 is arranged between valve rod 19 and valve gap 13, one side of valve stem packing 16 is provided with gland 17, valve gap 13 is connected with upper Ifold flange body 15, and junction is provided with mesopore gasket ring 14, flashboard 5 is threaded connection with valve rod 19, one side of seat ring 8 is respectively arranged with sealing ring 7, valve seat insert 9 is installed on valve seat body 6, valve seat body 6 is arranged on Ifold flange body 15 inside, and seat ring 8 is arranged in the hole of fixed head 10, and the both sides of fixed head 10 are limited in the both sides of flashboard 5 by the support plate 11 that leads.
The using method of this specific embodiment is: first blowout prevention anti-leak well head safe device is substituted to conventional reduced flange and be installed on the oil pipe four-way and the position between main valve of well head, when the main valve of well head breaks down cisco unity malfunction need to change time, should first back out valve rod cover 21, then outer six sides on special opening handle are inserted in the interior hexagonal hole on hand wheel pole 22, turn clockwise the flashboard under opening-wide state 5 to closed condition (close after putting in place and should counterclockwise rotate 1/4～1/2 circle), cut off runner, change main valve, after replacing completes, rotate counterclockwise dedicated handle flashboard 5 unlatchings (clockwise direction rotation 1/4～1/2 circle is answered in unlatching after putting in place) are then taken off to dedicated handle, again valve rod cover 21 is tightened, whole process ends with system can be recovered normal operation.
This specific embodiment adopts double-valve-seat structure, and the processing technology of valve plate, valve seat adopts supersonic spray coating spray tungsten carbide, through computer controlled grinding, makes its surface roughness be less than 0.05um, and parallelism, within the scope of 0.01mm, is guaranteed positiver sealing.It is material (75% Teflon+20% glass fiber+5% molybdenum) that valve seat insert adopts teflon, temperature has enough intensity and toughness at-46 ℃～+ 121 ℃, have more higher erosion-resisting ability, do not adopt conventional wave spring structure, avoided wave spring to rupture in deep-etching and load effect and harm that valve seal was lost efficacy.Valve rod adopts grinding machine cylindrical, guarantees sealing effectiveness and less switch moment, makes this device operating flexibility obtain sound assurance.Valve stem packing adopts tetrafluoro and acrylonitrile-butadiene rubber sulfuration one, has high strength, acidproof, anti-H 2 S, (if used on thermal production well mouth, selecting graphite as valve stem packing, to meet resistant to elevated temperatures requirement).The part of wetting surface all adopts stainless steel manufacture to form, and can meet above working condition requirement.What adopt is dark bar form of structure, thereby compact conformation is rationally reliable generally.According to the specifications and models flexible design of all kinds of well heads, make its device and well head form one.
This specific embodiment has following beneficial effect:
One, safety: carry out selection, technique, the experiment of well head safe device in the worst situations of factor such as applying working condition condition, medium.Under low temperature and hot environment, can normally use, switch freely.In the medium of water, gas, oil, carry out low pressure and high-potting, 15 minutes leakproofs of pressurize.Through every technical data of shaft mouth test safety device repeatedly, can be adapted to all kinds of well heads at different working conditions, rapidly, effectively solve this type of security incident;
Two, energy-saving and environmental protection: cost is low, blowout prevention fast, anti-leak when well head leaks; Make well head can drop into rapidly in normal production status; Execute-in-place non-environmental-pollution;
Three, economy, timeliness: weather operation entirely, can in 5 minutes, react, in 2-6 hour, handle accident well, and well head pressure is large and small unrestricted, not only economic, practical, safety; Simple to operate, fast improved greatly operating efficiency.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. blowout prevention anti-leak well head safe device, is characterized in that it comprises O shape rubber seal one (1), straight forced filling oil cup (2), stop-leak compound injection valve (3), bearing (4), flashboard (5), valve seat body (6), sealing ring (7), seat ring (8), valve seat insert (9), fixed head (10), guiding support plate (11), O shape rubber seal two (12), valve gap (13), mesopore gasket ring (14), upper Ifold flange body (15), valve stem packing (16), gland (17), handwheel lever pin (18), valve rod (19), bearing cover (20), valve rod cover (21), hand wheel pole (22), the two ends of hand wheel pole (22) are provided with bearing (4), the outside of bearing (4) is provided with bearing cover (20), hand wheel pole (22) is connected with valve rod (19) by handwheel lever pin (18), the arranged outside of bearing cover (20) has valve rod cover (21), O shape rubber seal two (12) is installed, O shape rubber seal one (1) on valve rod cover (21), straight forced filling oil cup (2) is installed on the shell of bearing cover (20), valve rod (19) is arranged in the endoporus of valve gap (13), valve stem packing (16) is arranged between valve rod (19) and valve gap (13), one side of valve stem packing (16) is provided with gland (17), valve gap (13) is connected with upper Ifold flange body (15), and junction is provided with mesopore gasket ring (14), flashboard (5) is threaded connection with valve rod (19), one side of seat ring (8) is provided with sealing ring (7), valve seat insert (9) is installed on valve seat body (6), valve seat body (6) is arranged on Ifold flange body (15) inside, seat ring (8) is arranged in the hole of fixed head (10), the both sides of fixed head (10) are limited in the both sides of flashboard (5) by the support plate that leads (11).
2. blowout prevention anti-leak well head safe device according to claim 1, the using method it is characterized in that is: first blowout prevention anti-leak well head safe device is substituted to conventional reduced flange and be installed on the oil pipe four-way and the position between main valve of well head, when the main valve of well head breaks down cisco unity malfunction need to change time, should first back out valve rod cover (21), then outer six sides on special opening handle are inserted in the interior hexagonal hole on hand wheel pole (22), turn clockwise the flashboard under full-gear (5) to closed condition, cut off runner, change main valve, after replacing completes, rotating counterclockwise dedicated handle opens flashboard (5), then take off dedicated handle, again valve rod cover (21) is tightened, whole process ends with system can be recovered normal operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310513322.1A CN103590784B (en) | 2013-10-28 | 2013-10-28 | Blowout control leakproof wellhead safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310513322.1A CN103590784B (en) | 2013-10-28 | 2013-10-28 | Blowout control leakproof wellhead safety device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103590784A true CN103590784A (en) | 2014-02-19 |
| CN103590784B CN103590784B (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310513322.1A Active CN103590784B (en) | 2013-10-28 | 2013-10-28 | Blowout control leakproof wellhead safety device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027349A (en) * | 2021-04-29 | 2021-06-25 | 盐城市大冈石油工具厂有限责任公司 | Multifunctional polish rod converter |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071368B (en) * | 2018-01-16 | 2020-06-12 | 吉林省嘉元绿宝环卫设备股份有限公司 | Efficient energy-saving natural gas extraction equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5454547A (en) * | 1993-06-14 | 1995-10-03 | Valve Sales Company, Inc. | Sleeved seal for a valve |
| CN201013324Y (en) * | 2007-03-07 | 2008-01-30 | 中国石油天然气股份有限公司 | Stable production allocation device for natural gas well |
| CN201695994U (en) * | 2010-06-09 | 2011-01-05 | 濮阳圣元火炬工程有限公司 | Oil extraction metering manifold lower end metering valve |
| CN201802364U (en) * | 2010-09-01 | 2011-04-20 | 中国石油天然气股份有限公司 | Natural gas jet drainage adjustable device |
| CN202117606U (en) * | 2011-06-14 | 2012-01-18 | 刘庆梅 | Blowout-preventing oil pipe head for non-well-killing valve replacing |
| CN102733772A (en) * | 2012-07-12 | 2012-10-17 | 刘庆梅 | Christmas tree of tubing head for borehole operation without killing well |
| CN203603842U (en) * | 2013-10-28 | 2014-05-21 | 盐城市琪航石油机械有限公司 | Blowout-prevention and leakage prevention well mouth safety device |
-
2013
- 2013-10-28 CN CN201310513322.1A patent/CN103590784B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5454547A (en) * | 1993-06-14 | 1995-10-03 | Valve Sales Company, Inc. | Sleeved seal for a valve |
| CN201013324Y (en) * | 2007-03-07 | 2008-01-30 | 中国石油天然气股份有限公司 | Stable production allocation device for natural gas well |
| CN201695994U (en) * | 2010-06-09 | 2011-01-05 | 濮阳圣元火炬工程有限公司 | Oil extraction metering manifold lower end metering valve |
| CN201802364U (en) * | 2010-09-01 | 2011-04-20 | 中国石油天然气股份有限公司 | Natural gas jet drainage adjustable device |
| CN202117606U (en) * | 2011-06-14 | 2012-01-18 | 刘庆梅 | Blowout-preventing oil pipe head for non-well-killing valve replacing |
| CN102733772A (en) * | 2012-07-12 | 2012-10-17 | 刘庆梅 | Christmas tree of tubing head for borehole operation without killing well |
| CN203603842U (en) * | 2013-10-28 | 2014-05-21 | 盐城市琪航石油机械有限公司 | Blowout-prevention and leakage prevention well mouth safety device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027349A (en) * | 2021-04-29 | 2021-06-25 | 盐城市大冈石油工具厂有限责任公司 | Multifunctional polish rod converter |
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| CN103590784B (en) | 2016-04-06 |
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Denomination of invention: Blowout control leakproof wellhead safety device Effective date of registration: 20190218 Granted publication date: 20160406 Pledgee: Bank of China Limited Jianhu Branch Pledgor: YANCHENG QIHANG PETROLEUM MACHINERY CO.,LTD. Registration number: 2019320000094 |
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Date of cancellation: 20200210 Granted publication date: 20160406 Pledgee: Bank of China Limited Jianhu Branch Pledgor: YANCHENG QIHANG PETROLEUM MACHINERY CO.,LTD. Registration number: 2019320000094 |
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Denomination of invention: Blowout control leakproof wellhead safety device Effective date of registration: 20200212 Granted publication date: 20160406 Pledgee: Bank of China Limited Jianhu Branch Pledgor: YANCHENG QIHANG PETROLEUM MACHINERY CO.,LTD. Registration number: Y2020980000232 |
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Date of cancellation: 20210426 Granted publication date: 20160406 Pledgee: Bank of China Limited Jianhu Branch Pledgor: YANCHENG QIHANG PETROLEUM MACHINERY Co.,Ltd. Registration number: Y2020980000232 |
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Denomination of invention: Blowout and leakage prevention wellhead safety device Effective date of registration: 20210427 Granted publication date: 20160406 Pledgee: Bank of China Limited Jianhu Branch Pledgor: YANCHENG QIHANG PETROLEUM MACHINERY Co.,Ltd. Registration number: Y2021980003105 |
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Date of cancellation: 20220816 Granted publication date: 20160406 Pledgee: Bank of China Limited Jianhu Branch Pledgor: YANCHENG QIHANG PETROLEUM MACHINERY CO.,LTD. Registration number: Y2021980003105 |
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Denomination of invention: Blowout and leak prevention wellhead safety device Effective date of registration: 20220818 Granted publication date: 20160406 Pledgee: Bank of China Limited Jianhu Branch Pledgor: YANCHENG QIHANG PETROLEUM MACHINERY CO.,LTD. Registration number: Y2022320000474 |