CN201915875U - Non-release valve changing device for main valve of oil bushing - Google Patents
Non-release valve changing device for main valve of oil bushing Download PDFInfo
- Publication number
- CN201915875U CN201915875U CN2010206825518U CN201020682551U CN201915875U CN 201915875 U CN201915875 U CN 201915875U CN 2010206825518 U CN2010206825518 U CN 2010206825518U CN 201020682551 U CN201020682551 U CN 201020682551U CN 201915875 U CN201915875 U CN 201915875U
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- valve
- piston rod
- tubing
- giving
- changed
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- Expired - Lifetime
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- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 claims description 42
- 230000008859 change Effects 0.000 claims description 29
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 241000191291 Abies alba Species 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 13
- 239000007789 gas Substances 0.000 description 9
- 238000012856 packing Methods 0.000 description 6
- 239000010720 hydraulic oil Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000000505 pernicious effect Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- XQCFHQBGMWUEMY-ZPUQHVIOSA-N Nitrovin Chemical compound C=1C=C([N+]([O-])=O)OC=1\C=C\C(=NNC(=N)N)\C=C\C1=CC=C([N+]([O-])=O)O1 XQCFHQBGMWUEMY-ZPUQHVIOSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses a non-release valve changing device for a main valve of an oil bushing, which consists of a hydraulic feeding device, a valve changer, a hydraulic gate valve take-out device and an external locking device for the valve changer. The non-release valve changing device consists of the hydraulic feeding device, the valve changer, the hydraulic gate valve take-out device and a mechanical locking device. A piston rod of the hydraulic gate valve take-out device is integrated with a locking rod of the mechanical locking device or is connected with the locking rod of the mechanical locking device through screw threads. The locking device is positioned above the take-out device. The feeding device consists of a feeding hydraulic cylinder, a piston rod, a transmission rod and a transmission rod fixer. The transmission rod is fixed on the piston rod of the feeding device by the transmission rod fixer. The valve changer is transferred to a preset position through axial sliding of the piston rod of the feeding device. By the non-release valve changing device, under the condition of not releasing the valve changer, the main control gate valve of a Christmas tree oil bushing of each oil field is replaced. The non-release valve changing device is safe and reliable. The economic benefit is improved.
Description
Technical field
The utility model relates to not giving up of a kind of tubing and casing main valve and changes valve gear.
Background technology
The wellhead assembly of the christmas tree in each oil field, the whole nation, exploitation through decades, the gas recovery well wellhead assembly because of at that time technical condition, system maintenance level, wash away, reason such as corrosion or valve sealing element are aging, cause its major control parts (gate valve) in various degree leakage to occur.
It is very unfavorable to the safety in production of gas well that well head (gate valve) leaks, and contain more pernicious gas in the natural gas, as H
2Pernicious gases such as S, these pernicious gases be serious threat people healthy not only, also can cause the pollution of environment, and it also will cause serious corrosion failure to hardware, instrument and apparatus simultaneously.In case well head consequence out of control can't be imagined, can cause the generation of fire, blast and personnel's injury accident, so need in time to change gate valve and the well head associated components that leaks christmas tree.
With the kill job integral replacing christmas tree of routine, the time that operation needs is ten days to 15 days, not only influences the oil gas well production, and can not in time be repaired well head, causes environment pollution.Therefore, how changing the gate valve that leaks safely is the key issue that the current urgent need solution of environment was produced and improved in restriction in the underground work work.
At present, the technology employing of gate valve is changed in each oil field:
1. change the valve device seat mode of giving up of being honored as a queen and change, in case change the serious accident that can fly out and hurt sb.'s feelings behind the valve device operational failure.
2. send to and change the mode that the valve device sends to the biliquid cylinder and carry out and since the biliquid cylinder in sending process to owing to be subjected to the pressure in shaft bottom can not be synchronous, the security incident that can allow the driven rod twist and warping and fracture.
3. the mode sent to of biliquid cylinder can only be used under lower operating pressure, can not send under the high pressure and change the valve device.
Summary of the invention
The purpose of this utility model provides not giving up of a kind of tubing and casing main valve and changes valve gear, any well head that valve gear is applicable to the oil field is changed in not giving up of this tubing and casing main valve, safe and reliable, do not give up and change the characteristics that valve gear has possessed Feng Deyan and obtained out, can effectively evade the well control risk, shorten the activity duration: the whole construction activity duration is no more than four hours, can resume production faster; Can prevent the injury of well killing fluid, can avoid environment pollution, thereby effectively protect petroleum resources and environment on every side payzone; Having does not need to carry out the tubing flow displacement discharge opeing, has characteristics such as energy-saving and emission-reduction, economic benefit are obvious.
The utility model is by the hydraulic pressure feeder, change valve device, fluid pressure type gate valve withdrawing device, change the outer locking device of valve device and mechanical locking device constitutes, the piston rod of fluid pressure type gate valve withdrawing device and the check lock lever of mechanical locking device are one or by being threaded togather, locking device is positioned on the withdrawing device; Feeder is to constitute by sending fluid cylinder, piston rod, driven rod and driven rod fixator to, and the driven rod fixator is fixed on driven rod on the piston rod, will change the valve device by endwisely slipping of piston rod and deliver to the precalculated position.
Described mechanical locking device is made up of pressing plate, lock nut and tie down screw.
Fluid pressure type gate valve withdrawing device is made up of two slidingtype fluid cylinders, fluid cylinder coupling nut, valve supporting plate and supporting plate connecting bolt, and two slidingtype fluid cylinders are fixed on the flange of tubing head by the fluid cylinder coupling nut.
Operating principle of the present utility model and process are:
1, hydraulic oil is injected in the driven rod change in the valve device, hydraulic oil acts on the central axis in the hydraulic cylinder that changes the valve device, by the motion extruding packing element and the slips of central axis, and the isolated downstream that goes up of packing element spreading, the slips spreading is stuck on the tube wall.
2, will change valve device and driven rod is locked at it on tubing head four-way with locking device, the residual air on the valve device is changed in emptying, dismounting needs the main control valve of replacing and the connecting bolt between the upper flange, control fluid pressure type gate valve withdrawing device is released main control valve, to change the valve device with fixed head fixes, unclamp locking device, take out other devices and main control valve.
3, after being installed in new valve on the hydraulic pressure feeder, feeder is got back on the position that is removed, withdraw from fixed head after installing locking device, new valve is in place with the hydraulic pressure withdrawing device, tighten the connecting bolt of new valve and upper flange, unload the oil pressure of changing in the valve device, recover packing element and slips, withdraw from and change the valve device, close new main control valve, take out whole device after the emptying residual air, thereby finish the whole valve process of changing.
The utility model has the following advantages compared with prior art:
1, the utility model is changed the master control valve of (gas) tree of recovering the oil under the situation of changing the valve device of not giving up, and has the function of second protection, and it is safe and reliable to have guaranteed to change the valve process.
2, avoid the output that causes because of kill-job to reduce, thereby effectively protected petroleum resources.
3, avoided the environment pollution that causes because of kill-job.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the front view of fixed head.
Fig. 3 is the vertical view of fixed head.
The specific embodiment
See also Fig. 1, Fig. 2 and shown in Figure 3, the utility model is by the hydraulic pressure feeder, changes valve device 8, fluid pressure type gate valve withdrawing device 7 and mechanical locking device 6 and constitute, described feeder constitutes by sending fluid cylinder 1, piston rod 2, driven rod 3 and driven rod fixator 4 to, driven rod fixator 4 is fixed on driven rod 3 on the piston rod, will change valve device 8 by endwisely slipping of piston rod 2 and deliver to the precalculated position.
Described mechanical locking device 6 is made up of pressing plate 12, lock nut 11 and tie down screw 13.
Described fluid pressure type gate valve withdrawing device 7 is made up of two slidingtype fluid cylinders 21, fluid cylinder coupling nut 22, valve supporting plate 20 and supporting plate connecting bolt 19, and two slidingtype fluid cylinders 21 are fixed on the flange 10 of tubing head by fluid cylinder coupling nut 22.
Described transmission fixator 4 is made up of connecting bolt 14, nut 15 and junction plate 28.
The described valve device 8 that changes is connected on the driven rod 3, and is fixed on the piston rod 2 by the driven rod fixator, and piston rod 2 is connected with the gate valve that needs to change by the adpting flange of sending on the fluid cylinder 15.
Described piston rod 2 can not rotate, and there is fine thread piston rod 2 upper ends, is used for installing changing valve device fastening devices.
Described fluid pressure type gate valve withdrawing device 7 is an integral type with changing valve device 8 outer locking devices.
When needs are changed old valve 9, adpting flange 5 is installed on the gate valve of need changing 9, opens gate valve 9, send to by hydraulic control system in the oil-in 17 of fluid cylinder 1 and pump into hydraulic oil, piston rod 2 down moves, and drives driven rod 3 and changes valve device 8 to preposition.When arriving the precalculated position, unclamp the nut 14 on the driven rod fixator 4, by high-pressure hand pump hydraulic oil is injected from driven rod 3 and to change in the valve device 8, change pistons 24 in the valve device 8 and under the effect of hydraulic oil, drive central axis 25 and move upward, will change the packing element 26 and slips 27 spreadings of valve device simultaneously.Slips 27 hangs over tubing wall, and packing element 26 has been blocked the shaft bottom air-flow.
After the blocking-up of shaft bottom air-flow, with mechanical locking device 6 with driven rod 3 with change 8 lockings of valve device, do not allow driven rod 3 with change valve device 8 and be subjected to displacement.After mechanical interlocking comes into force, dismantle old gate valve 9 and the connecting bolt 23 of (gas) tree of recovering the oil.
Following oil nozzle oil-feed on the slidingtype fluid cylinder 21 on the fluid pressure type gate valve withdrawing device 7, fluid cylinder 21 up moves under the effect of oil pressure, up moves thereby drive old gate valve 9.When certain position is wanted in motion, will change the valve device with fixed head 28 and fix.
Remove pressing plate 12, lock nut 11 on the mechanical locking device 6 then, take out driven rod 3, unclamp fluid pressure type gate valve withdrawing device 7 and gate valve connecting bolt 19, with old gate valve 9 with send fluid cylinder 1 to and hang.
Dismantle fixed head 28 then, oil nozzle oil-feed on the slidingtype fluid cylinder 21 on the fluid pressure type gate valve withdrawing device 7, fluid cylinder 21 down moves under the effect of oil pressure, down moves thereby drive new gate valve 9, tightens new gate valve 9 after putting in place and the connecting bolt of (gas) tree of recovering the oil.
Remove pressing plate 12, lock nut 11 on the mechanical locking device 6 then, unload the oil pressure of changing in the valve device, recover packing element and slips, by send fluid cylinder 1 to, piston rod 2 withdraws from and changes valve device 8, closes new gate valve 9, takes out whole device after the emptying residual air.Thereby finish the overall process of changing gate valve 9.
The utility model is placed vertically to install and is used to change tubing valve, and traverse is used to change casing valve.
Claims (8)
1. not giving up of a tubing and casing main valve changed valve gear, its feature exists: be by the hydraulic pressure feeder, change valve device (8), fluid pressure type gate valve withdrawing device (7) and mechanical locking device (6) formation, the tie down screw (13) of the piston rod of fluid pressure type gate valve withdrawing device (7) and mechanical locking device is for one or by being threaded togather, locking device is positioned on the withdrawing device; Described feeder is to constitute by sending fluid cylinder (1), piston rod (2), driven rod (3) and driven rod fixator (4) to, driven rod fixator (4) is fixed on driven rod (3) on the piston rod, will change valve device (8) by endwisely slipping of piston rod (2) and deliver to the precalculated position.
2. valve gear is changed in not giving up of a kind of tubing and casing main valve according to claim 1, it is characterized in that: described transmission fixator (4) is made up of connecting bolt (14), nut (15) and junction plate (28).
3. valve gear is changed in not giving up of a kind of tubing and casing main valve according to claim 1, it is characterized in that: the described valve device (8) that changes is connected on the driven rod (3), and be fixed on the piston rod (2) by the driven rod fixator, piston rod (2) is connected with the gate valve that needs to change by the adpting flange of sending on the fluid cylinder (1) (5).
4. valve gear is changed in not giving up of a kind of tubing and casing main valve according to claim 1, it is characterized in that: described mechanical locking device (6) is made up of pressing plate (12), lock nut (11) and tie down screw (13).
5. valve gear is changed in not giving up of a kind of tubing and casing main valve according to claim 1, it is characterized in that: fluid pressure type gate valve withdrawing device (7) is made up of two slidingtype fluid cylinders (21), fluid cylinder coupling nut (22), valve supporting plate (20) and supporting plate connecting bolt (19), and two slidingtype fluid cylinders (21) are fixed on the flange (10) of tubing head by fluid cylinder coupling nut (22).
6. valve gear is changed in not giving up of a kind of tubing and casing main valve according to claim 5, it is characterized in that: described slidingtype fluid cylinder (21) is by oil nozzle oil-feed down, and under the effect of oil pressure, fluid cylinder (21) moves up and down, thereby drives the gate valve motion.
7. valve gear is changed in not giving up of a kind of tubing and casing main valve according to claim 1, it is characterized in that: described piston rod (2) can not rotate, and there is fine thread piston rod (2) upper end, is used for installing changing valve device fastening devices.
8. valve gear is changed in not giving up of a kind of tubing and casing main valve according to claim 1, it is characterized in that: described fluid pressure type gate valve withdrawing device (7) and to change the outer locking device of valve device (8) be integral type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206825518U CN201915875U (en) | 2010-12-28 | 2010-12-28 | Non-release valve changing device for main valve of oil bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206825518U CN201915875U (en) | 2010-12-28 | 2010-12-28 | Non-release valve changing device for main valve of oil bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201915875U true CN201915875U (en) | 2011-08-03 |
Family
ID=44415677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206825518U Expired - Lifetime CN201915875U (en) | 2010-12-28 | 2010-12-28 | Non-release valve changing device for main valve of oil bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201915875U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912230A (en) * | 2012-12-31 | 2014-07-09 | 托普威尔石油技术股份公司 | Non-releasing valve replacing device for casing valve |
| CN103912228A (en) * | 2012-12-31 | 2014-07-09 | 托普威尔石油技术股份公司 | Non-releasing gate valve replacement device |
| CN104929551A (en) * | 2015-06-15 | 2015-09-23 | 冯国庆 | Oil field high-pressure well pressure-relief-free valve replacement device and valve replacement method |
| CN105840130A (en) * | 2015-01-15 | 2016-08-10 | 中石化重庆涪陵页岩气勘探开发有限公司 | Main valve protector of shale gas production wellhead |
-
2010
- 2010-12-28 CN CN2010206825518U patent/CN201915875U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912230A (en) * | 2012-12-31 | 2014-07-09 | 托普威尔石油技术股份公司 | Non-releasing valve replacing device for casing valve |
| CN103912228A (en) * | 2012-12-31 | 2014-07-09 | 托普威尔石油技术股份公司 | Non-releasing gate valve replacement device |
| CN103912230B (en) * | 2012-12-31 | 2017-02-22 | 托普威尔石油技术股份公司 | Non-releasing valve replacing device for casing valve |
| CN103912228B (en) * | 2012-12-31 | 2017-06-23 | 托普威尔石油技术股份公司 | Do not give up replacing device for gate valve |
| CN105840130A (en) * | 2015-01-15 | 2016-08-10 | 中石化重庆涪陵页岩气勘探开发有限公司 | Main valve protector of shale gas production wellhead |
| CN104929551A (en) * | 2015-06-15 | 2015-09-23 | 冯国庆 | Oil field high-pressure well pressure-relief-free valve replacement device and valve replacement method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XINTAI MACHINERY CO LTD, CHONGQING Free format text: FORMER OWNER: BEIJING JINDING TONGDA OIL + GAS TECHNOLOGY SERVICE CO., LTD. Effective date: 20111122 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100000 HAIDIAN, BEIJING TO: 402160 YONGCHUAN, CHONGQING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20111122 Address after: 402160 No. 168, Xintai Road, Yongchuan District, Chongqing Patentee after: Chongqing Xintai Machinery Co.,Ltd. Address before: 100000, room 2, unit 16, 209 middle street, Haidian District, Beijing, Haidian Patentee before: Beijing Jinding Tongda Oil Gas Technology Service Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: TOP-WELL PETROLEUM TECHNOLOGIES COMPANY LTD. Free format text: FORMER OWNER: XINTAI MACHINERY CO LTD, CHONGQING Effective date: 20121226 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Bin Inventor after: Wei Zonglin Inventor before: Liu Bin Inventor before: Wei Zonglin Inventor before: Sun Dongwei |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 402160 YONGCHUAN, CHONGQING TO: 100012 CHAOYANG, BEIJING Free format text: CORRECT: INVENTOR; FROM: LIU BIN WEI ZONGLIN SUN DONGWEI TO: LIU BIN WEI ZONGLIN |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121226 Address after: 100012, room 32, security building, 2101 Beiyuan Road, Beijing, Chaoyang District Patentee after: Top-Well Petroleum Technologies Company Ltd. Address before: 402160 No. 168, Xintai Road, Yongchuan District, Chongqing Patentee before: Chongqing Xintai Machinery Co.,Ltd. |
|
| DD01 | Delivery of document by public notice |
Addressee: Liu Bin Document name: Notification of Passing Examination on Formalities |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110803 |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Xu Weizhen Document name: Notice of termination of patent right |