CN2929161Y - Novel hydraulic perforation blowout preventor - Google Patents
Novel hydraulic perforation blowout preventor Download PDFInfo
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- CN2929161Y CN2929161Y CN 200620092576 CN200620092576U CN2929161Y CN 2929161 Y CN2929161 Y CN 2929161Y CN 200620092576 CN200620092576 CN 200620092576 CN 200620092576 U CN200620092576 U CN 200620092576U CN 2929161 Y CN2929161 Y CN 2929161Y
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Abstract
The utility model relates to a novel hydraulic perforating blow-out preventer applied in the downhole operation of oil gas wells in oil fields and comprises a cable shearing blow-out preventer and a ground blowout preventing control device, wherein ring gaskets are arranged in the groove for the ring gaskets arranged on the upper portion of the four-way valve of the well head and the lower portion of a casing, and the middle portion of the casing is provided with a shear ram and a piston that fasten with each other, a top bar is connected with the screw thread of the piston, an A cavity of an inlet opening is arranged on the right side of the piston on the casing and a B cavity of a return opening on the left side of the piston, O-shape ring gaskets are respectively sleeved in an radial seal groove of the piston and an seal groove of the shear ram, the A and B cavity of the inlet opening are connected with the screw thread of a three-position four-way change-over valve by a pipe line, a valve and a decompression needle valve, a high-pressure needle valve and the screw thread of an accumulator. The blow-out preventer solves the problems that the to-be-solved blow-out prevention and well combustion when perforating cannot be solved by the prior technology and can be applied in downhole operation of oil gas wells in oil fields.
Description
Technical field:
The utility model relates to a kind of novel hydraulic perforation preventer that the underground work of a kind of oilfield well is used.
Background technology:
Present domestic oil field is along with oil field development enters the middle and later periods, take every well stimulation to reach the purpose of volume increase to oil well, the stratum enters amphibolia inevitably, exist the accident of blowout and well combustion during perforation, present various preventer is of a great variety, but, to avoid having an accident when also not having to occur and the preventer developed at perforation, the subject matter that existing preventer exists is the problem that can not solve blowout prevention, well combustion accident when perforation.
Summary of the invention:
The utility model purpose is to provide a kind of novel hydraulic perforation preventer, it has solved the problem that can not solve blowout prevention, well combustion accident when perforation that exists in the prior art, use this preventer and when perforation, can cut off cable and can play the blowout prevention effect again, avoided the generation of blowout prevention, well combustion accident.
The technical scheme that its technical problem that solves the utility model adopts is: this hydraulic pressure perforation preventer is formed by shearing cable preventer and ground blowout prevention control device two parts; Shearing the cable preventer is made of the ring gasket, housing, shear ram, piston, push rod, oil-in, O RunddichtringO, the oil return opening that are sitting on the well head four-way; Blowout prevention control device in ground is made of feed line, oil return pipeline, three position four-way directional control valve, decompression overflow valve, one way valve, high pressure needle valve, accumulator, pressure release needle-valve, oil pump, strainer, fuel tank; In the ring gasket groove that well head four-way top and lower housing portion are provided with, be placed with ring gasket, housing is connected with well head four-way bolt, at the middle part of housing shear ram and piston are housed, the two withholds connection, push rod is connected with piston thread, on housing, be positioned at the piston right side and be provided with oil-in A chamber, on housing, be positioned at the piston left side and be provided with oil return opening B chamber; Two O RunddichtringOs are enclosed within respectively in piston 5 seal groove radially, in the reservation seal groove of shear ram, pack into the O RunddichtringO; Oil-in is threaded by feed line with three position four-way directional control valve; Oil return opening is threaded by the oil return pipeline with three position four-way directional control valve; The end in addition of three position four-way directional control valve oil return opening inserts in the fuel tank, and oil-in is threaded with decompression overflow valve, ball-and-seat, oil pump, strainer, fuel tank by pipeline; Be threaded with pressure release needle-valve, high pressure needle valve, accumulator by pipeline, valve.When using hydraulic pressure perforation preventer at first with this preventer seat on the well head four-way, close the pressure release needle-valve after the installation earlier, open high pressure needle valve, make three position four-way directional control valve be in meta, oil pump provides highly pressurised liquid to make the accumulator storage power reach 21MPa through one way valve, high pressure needle valve; When blowout takes place when, the pressure that accumulator stores enters the oil-in of preventer and flows into the A chamber through feed line by the right position of three position four-way directional control valve through the decompression overflow valve, hydraulic oil acts on the piston end surface, promote piston to left movement, drive shear ram to left movement, cable is cut off, the sealing well head, the interior hydraulic oil of oil back chamber B this moment flows back to fuel tank by three position four-way directional control valve; When blowout disposes, after the pressure balance in the well, hydraulic oil is by position, a three position four-way directional control valve left side, the pressure oil that accumulator stores enters the B chamber through oil return pipeline, oil return opening, the promotion piston moves right, and removes and shears, and the oil in the A chamber flows back to fuel tank through the 3-position 4-way switching valve at this moment; Push rod is when remote console breaks down, and promotes piston motion by manual push rod, drives shear ram to left movement, realizes shearing cable, and the sealing well head is realized dual fail-safe.
The new beneficial effect of this practicality is, this preventer is simple in structure, and volume is little; in light weight; surge and manually for one and be provided with independently that hydraulic power source is easy to use, result of use is good, can effectively protect the production capacity of oil-gas Layer and avoid that the pollution on ground is had environment protecting.
Description of drawings:
Accompanying drawing is the utility model overall structure schematic diagram.
Among the figure, 1, the well head four-way, 2, ring gasket, 3, housing, 4, shear ram, 5, piston, 6, push rod, 7, oil-in, 8, O RunddichtringO, 9, oil return opening, 10, feed line, 11, the oil return pipeline, 12, three position four-way directional control valve, 13, the decompression overflow valve, 14, one way valve, 15, high pressure needle valve, 16, accumulator, 17, the pressure release needle-valve, 18, oil pump, 19, strainer, 20, fuel tank.
The specific embodiment:
As shown in the figure, hydraulic pressure perforation preventer is formed by shearing cable preventer and ground blowout prevention control device two parts: shear the cable preventer and be made of the ring gasket 2, housing 3, shear ram 4, piston 5, push rod 6, oil-in 7, O RunddichtringO 8, the oil return opening 9 that are sitting on the well head four-way 1; Blowout prevention control device in ground is made of feed line 10, oil return pipeline 11, three position four-way directional control valve 12, decompression overflow valve 13, one way valve 14, high pressure needle valve 15, accumulator 16, pressure release needle-valve 17, oil pump 18, strainer 19, fuel tank 20; In the ring gasket groove that well head four-way 1 top and housing 3 bottoms are provided with, be placed with ring gasket 2, housing 3 is connected with well head four-way bolt, shear ram 4 and piston 5 are housed at the middle part of housing 3, the two withholds connection, push rod 6 is threaded with piston 5, on housing 3, be positioned at piston 5 right sides and be provided with oil-in 7A chamber, on housing 3, be positioned at piston 5 left sides and be provided with oil return opening 9B chamber; Two O RunddichtringOs 8 are enclosed within respectively in piston 5 seal groove radially, in the reservation seal groove of shear ram 4, pack into O RunddichtringO 8; Oil-in 7 is threaded by feed line 10 with three position four-way directional control valve 12; Oil return opening 9 is threaded by oil return pipeline 11 with three position four-way directional control valve 12; The end in addition of three position four-way directional control valve 12 oil return openings inserts in the oil pipe 20, and oil-in 7 is threaded with decompression overflow valve 13, ball-and-seat 14, oil pump 18, strainer 19, fuel tank 20 by pipeline; Be threaded with pressure release needle-valve 17, high pressure needle valve 15, accumulator 16 by pipeline, valve.
Claims (1)
1, a kind of novel hydraulic perforation preventer is formed by shearing cable preventer and ground blowout prevention control device two parts: shear the cable preventer and be made of the ring gasket (2), housing (3), shear ram (4), piston (5), push rod (6), oil-in (7), O RunddichtringO (8), the oil return opening (9) that are sitting on the well head four-way (1); Blowout prevention control device in ground is made of feed line (10), oil return pipeline (11), three position four-way directional control valve (12), decompression overflow valve (13), one way valve (14), high pressure needle valve (15), accumulator (16), pressure release needle-valve (17), oil pump (18), strainer (19), fuel tank (20); It is characterized in that: in the ring gasket groove that well head four-way (1) top and housing (3) bottom are provided with, be placed with ring gasket (2), housing (3) is connected with well head four-way bolt, shear ram (4) and piston (5) are housed at the middle part of housing (3), the two withholds connection, push rod (6) is threaded with piston (5), on housing (3), be positioned at piston (5) right side and be provided with oil-in (7) A chamber, on housing (3), be positioned at piston (5) left side and be provided with oil return opening (9) B chamber; O RunddichtringO (8) is enclosed within respectively in piston (5) seal groove radially, in the reservation seal groove of shear ram (4), packs into O RunddichtringO (8); Oil-in (7) is threaded by feed line (10) with three position four-way directional control valve (12); Oil return opening (9) is threaded by oil return pipeline (11) with three position four-way directional control valve (12); The end in addition of three position four-way directional control valve (12) oil return opening inserts in the oil pipe (20), and oil-in (7) is threaded with decompression overflow valve (13), ball-and-seat (14), oil pump (18), strainer (19), fuel tank (20) by pipeline; Be threaded with pressure release needle-valve (17), high pressure needle valve (15), accumulator (16) by pipeline, valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620092576 CN2929161Y (en) | 2006-07-25 | 2006-07-25 | Novel hydraulic perforation blowout preventor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620092576 CN2929161Y (en) | 2006-07-25 | 2006-07-25 | Novel hydraulic perforation blowout preventor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2929161Y true CN2929161Y (en) | 2007-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620092576 Expired - Fee Related CN2929161Y (en) | 2006-07-25 | 2006-07-25 | Novel hydraulic perforation blowout preventor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2929161Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2461698C1 (en) * | 2011-04-08 | 2012-09-20 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования Сибирский федеральный университет (СФУ) | Hydraulic actuator for multifunctional preventer |
| CN103696724A (en) * | 2013-12-13 | 2014-04-02 | 西南石油大学 | Emergency automatic control device of blowout preventer |
| CN109267959A (en) * | 2018-11-29 | 2019-01-25 | 美钻深海能源科技研发（上海）有限公司 | The ram preventer and its blowout prevention method of position holding function is automatically closed in a kind of band |
| CN112814607A (en) * | 2021-01-04 | 2021-05-18 | 中国石油天然气集团有限公司 | Perforation wellhead rapid reloading blowout prevention equipment and control method thereof |
-
2006
- 2006-07-25 CN CN 200620092576 patent/CN2929161Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2461698C1 (en) * | 2011-04-08 | 2012-09-20 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования Сибирский федеральный университет (СФУ) | Hydraulic actuator for multifunctional preventer |
| EA019649B1 (en) * | 2011-04-08 | 2014-05-30 | Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет" | Hydraulic actuator for multifunctional preventer |
| CN103696724A (en) * | 2013-12-13 | 2014-04-02 | 西南石油大学 | Emergency automatic control device of blowout preventer |
| CN103696724B (en) * | 2013-12-13 | 2016-07-06 | 西南石油大学 | A kind of emergency automatic control device of blowout preventer |
| CN109267959A (en) * | 2018-11-29 | 2019-01-25 | 美钻深海能源科技研发（上海）有限公司 | The ram preventer and its blowout prevention method of position holding function is automatically closed in a kind of band |
| CN112814607A (en) * | 2021-01-04 | 2021-05-18 | 中国石油天然气集团有限公司 | Perforation wellhead rapid reloading blowout prevention equipment and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070801 |