CN205036339U - Sucker rod blowout preventer - Google Patents
Sucker rod blowout preventer Download PDFInfo
- Publication number
- CN205036339U CN205036339U CN201520644059.4U CN201520644059U CN205036339U CN 205036339 U CN205036339 U CN 205036339U CN 201520644059 U CN201520644059 U CN 201520644059U CN 205036339 U CN205036339 U CN 205036339U
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- sucker rod
- inner core
- flashboard assembly
- utility
- model
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Abstract
The utility model relates to a sucker rod blowout preventer, mainly rod string operation in -process uses under rising, controls the blowout phenomenon that the workover in -process appears, guarantees operation safety. This device includes casing and half flashboard assembly, and half flashboard assembly mainly comprises inner core and lead screw, and the lead screw is connected with the inner core, installs the sealed intracavity in the casing both sides, and through the side cover shutoff, and two half flashboard assemblies are installed in two rows of sealed chambeies about the both sides of casing are equipped with. The utility model discloses light practical, the pressure -bearing is high, and is sealed reliable, after half flashboard assembly seals the sucker rod body, bears the well internal pressure and can reach more than the 21Mpa not piercement. The utility model discloses be connected conveniently with the well head, the instrument latus rectum is big, instruments such as piston that can be through a scaling -off, eccentric wear prevention pole, weighted lever. When going out the profit in the sucker rod well down, the utility model discloses still can use with the cooperation of well head anti -pollution device, stop the well head and pollute the emergence.
Description
Technical field
The utility model relates to the blowout control equipment of petroleum industry operation wellhead, particularly a kind of blowout preventer of sucker rod, mainly uses in actuating oil-pumping unit post operation process, controls the blowout phenomenon occurred in workover treatment process, ensures job safety.
Background technology
During rod pumped well workover treatment, actuating oil-pumping unit is absolutely necessary flow chart, in actuating oil-pumping unit process, well kick even blowout easily occurs when running into abnormal pressure.Closing well program when there is blowout at present in rod job process has two kinds: one to be sucker rod hanger method: when overflow appears in well head, carry sucker rod hanger with sucker rod lifting sub to be connected with rod string in well, G.I.H after slinging, be suspended in boll-weevil hanger, back-off trips out sucker rod lifting sub, closes master valve and realizes closing well.Two is lifting polished rod rubber gate Sealing Method: when lower sucker rod generation overflow, polished rod of slinging immediately is connected with sucker rod in well and G.I.H, utilizes rubber gate to be connected with flow process threeway, tightens realize sealing with slips.The shortcoming of prior art is operation sequence very complicated, consuming time longer, easily miss the Best Times controlling blowout, and production wellhead does not bear high pressure, causes difficulty to subsequent job.
Summary of the invention
The purpose of this utility model is to provide a kind of blowout preventer of sucker rod, before actuating oil-pumping unit, is arranged on by blowout preventer of sucker rod on the Highpressure Tee above well head control block valve, controls the generation of blowout phenomenon in workover treatment process, ensures job safety.
The utility model is achieved in that a kind of blowout preventer of sucker rod comprises housing and half envelope flashboard assembly, half envelope flashboard assembly is primarily of inner core and leading screw composition, leading screw is connected with inner core, be arranged in the annular seal space of housing both sides, blocked up by limit cap seal, the both sides of housing are provided with two rows annular seal space, install two cover half envelope flashboard assemblies.
Compared with prior art, the beneficial effects of the utility model are: the utility model uses for reference the sealing principle of blowout preventer half envelope flashboard assembly, realize fixed tubular column, direct closedown flashboard assembly realizes sealing, reaches the shortening closed-in time, improves closing well bearing capacity, avoids sucker rod to remove the object of blowout out of control in process.Downhole Construction safety can be ensured, shorten and rob the spray time, the generation of Prevention of blowout or major pollution incident, make job execution regulation and standardization more.The light practicality of the utility model, pressure-bearing is high, and sealing is reliable, after half envelope flashboard assembly closes sucker rod body, bears borehole pressure and can reach more than 21Mpa and do not sting leakage.Easy to connect with well head, instrument latus rectum is large, can by instruments such as the piston of certain size, eccentric abrasion prevention bar, weighted levers.When the flange portion of solid sucker rod joint contacts with solid hopkinson bar stripper rubber, more add the sealing of this blowout hookup.When going out profit in lower sucker rod well, the utility model also can with well head environmental control system with the use of, stop well head pollute occur.Greatly facilitate workover operation construction, there is good result of use and economic benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing in detail the utility model is described in detail, and unrestricted protection domain of the present utility model, the improvement that all uses mentality of designing of the present utility model draws all belongs to protection category of the present utility model.
See Fig. 1, a kind of blowout preventer of sucker rod comprises housing and half envelope flashboard assembly, half envelope flashboard assembly forms primarily of inner core 5 and leading screw 4, leading screw 4 is connected with inner core 5, be arranged in the annular seal space of housing both sides, cover 3 shutoff by limit, the both sides of housing are provided with two rows annular seal space, install two cover half envelope flashboard assemblies.What inner core 5 front end of the half envelope flashboard assembly installed in upper row's annular seal space was fixing is solid hopkinson bar stripper rubber 7, after the centre bore of the solid hopkinson bar stripper rubber 7 of both sides is involutory, can seal the solid sucker rod body of Φ 22-25mm.What inner core 5 front end of the half envelope flashboard assembly installed in lower row's annular seal space was fixing is hollow stem stripper rubber 8, after the centre bore of the hollow stem stripper rubber 8 of both sides is involutory, can seal the hollow rod body of Φ 36mm.The inner core 5 of half envelope flashboard assembly is provided with and radially slides groove, and this radially slides groove and coordinates with the set bolt 2 installed in the wall of annular seal space chamber, and inner core 5 can be radially moved in annular seal space, opens or closes half envelope flashboard assembly.
The utility model can ensure the sealing closing well of different model rod string; Front band head 1 can be connected by slips with polished rod rubber gate or pumping rod self seal device, increase blowout prevention effect and when having prevented sucker rod body pollute with crude oil.Lower catch hoop head 6 is connected with slips with the Highpressure Tee above well head control block valve.In the utility model half seals flashboard assembly and solid hopkinson bar stripper rubber 7 and hollow stem stripper rubber 8 and by dismounting set bolt 2 and Bian Gai 3, can change at any time.
Concrete using method: before actuating oil-pumping unit, is arranged on the utility model on the Highpressure Tee above well head control block valve, connects tighten with slips, first connect corresponding solid sucker rod or hollow rod, carries out lower step construction again after qualified to the pressure testing of this device.When removing solid sucker rod or hollow rod, first half envelope flashboard assembly in the two rows annular seal space of this device both sides is all opened, prevent from damaging when all not opening inner core 5 and solid stripper rubber 7 and hollow seal rubber 8, smoothly by the sucker rod, piston, weighted lever, eccentric wear bar, lower well tool etc. that trip out in the well of below Φ 60mm or go into the well, can not need down well head.Remove in process, these sucker rods, instrument etc. can be movable at device internal freedoms such as this device, Highpressure Tee, gate, wellhead flanges smoothly, ensures to remove smoothly.Remove in process, when there is overflow or blowout in well head, available dedicated spanner quick rotation leading screw 4, close the upper and lower two cover half envelope flashboard assemblies of housing both sides, after making it seal, close the gate of Highpressure Tee side be connected with this device again, like this can effective closing well fast, bottom circulation kill job can be carried out again.
Claims (4)
1. a blowout preventer of sucker rod, comprise housing and half envelope flashboard assembly, half envelope flashboard assembly is primarily of inner core and leading screw composition, leading screw is connected with inner core, be arranged in the annular seal space of housing both sides, blocked up by limit cap seal, it is characterized in that, the both sides of housing are provided with two rows annular seal space, install two cover half envelope flashboard assemblies.
2. a kind of blowout preventer of sucker rod as claimed in claim 1, it is characterized in that, what install in described upper row's annular seal space the half inner core front end sealing flashboard assembly was fixed is solid hopkinson bar stripper rubber, after the centre bore of the solid hopkinson bar stripper rubber of both sides is involutory, the solid sucker rod body of Φ 22-25mm can be sealed.
3. a kind of blowout preventer of sucker rod as claimed in claim 1, it is characterized in that, what install in described lower row's annular seal space the half inner core front end sealing flashboard assembly was fixed is hollow stem stripper rubber, after the centre bore of the hollow stem stripper rubber of both sides is involutory, the hollow rod body of Φ 36mm can be sealed.
4. a kind of blowout preventer of sucker rod as described in claim 1 or 2 or 3, it is characterized in that, the inner core of described half envelope flashboard assembly is provided with and radially slides groove, and this radially slides groove and coordinates with the set bolt installed in the wall of annular seal space chamber, and inner core is radially moved in annular seal space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520644059.4U CN205036339U (en) | 2015-08-25 | 2015-08-25 | Sucker rod blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520644059.4U CN205036339U (en) | 2015-08-25 | 2015-08-25 | Sucker rod blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205036339U true CN205036339U (en) | 2016-02-17 |
Family
ID=55295248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520644059.4U Expired - Fee Related CN205036339U (en) | 2015-08-25 | 2015-08-25 | Sucker rod blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205036339U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412448A (en) * | 2018-06-11 | 2018-08-17 | 大庆市鹏翔石油科技有限公司 | Micro- profit two-restriction double-seal double wellhead assembly |
| CN108590562A (en) * | 2018-03-16 | 2018-09-28 | 中国石油天然气股份有限公司 | The device converted and sealed for well head pressure |
| CN109736742A (en) * | 2019-01-07 | 2019-05-10 | 青岛理工大学 | Liquid drives dual control thermal recovery and handles up blowout prevention Anti-overflow device |
| CN110685616A (en) * | 2019-10-21 | 2020-01-14 | 江苏油田矿业开发有限公司 | Well repairing operation method for low-permeability water-sensitive oil well |
| CN111441737A (en) * | 2020-04-15 | 2020-07-24 | 青岛理工大学 | Double-rotary-barrel double-plunger sliding key type shaft-plug core three-in-one blowout preventer |
| CN111706291A (en) * | 2020-07-09 | 2020-09-25 | 刘建男 | Pipeline plugging device and well repairing method |
-
2015
- 2015-08-25 CN CN201520644059.4U patent/CN205036339U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590562A (en) * | 2018-03-16 | 2018-09-28 | 中国石油天然气股份有限公司 | The device converted and sealed for well head pressure |
| CN108590562B (en) * | 2018-03-16 | 2020-04-10 | 中国石油天然气股份有限公司 | Device for wellhead pressure conversion and sealing |
| CN108412448A (en) * | 2018-06-11 | 2018-08-17 | 大庆市鹏翔石油科技有限公司 | Micro- profit two-restriction double-seal double wellhead assembly |
| CN109736742A (en) * | 2019-01-07 | 2019-05-10 | 青岛理工大学 | Liquid drives dual control thermal recovery and handles up blowout prevention Anti-overflow device |
| CN109736742B (en) * | 2019-01-07 | 2021-05-14 | 青岛理工大学 | Blowout prevention and overflow prevention device for liquid-drive double-control thermal recovery throughput |
| CN110685616A (en) * | 2019-10-21 | 2020-01-14 | 江苏油田矿业开发有限公司 | Well repairing operation method for low-permeability water-sensitive oil well |
| CN111441737A (en) * | 2020-04-15 | 2020-07-24 | 青岛理工大学 | Double-rotary-barrel double-plunger sliding key type shaft-plug core three-in-one blowout preventer |
| CN111706291A (en) * | 2020-07-09 | 2020-09-25 | 刘建男 | Pipeline plugging device and well repairing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20180825 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |