CN201915889U - Hydraulic control four-ram blowout preventer - Google Patents
Hydraulic control four-ram blowout preventer Download PDFInfo
- Publication number
- CN201915889U CN201915889U CN2010206999026U CN201020699902U CN201915889U CN 201915889 U CN201915889 U CN 201915889U CN 2010206999026 U CN2010206999026 U CN 2010206999026U CN 201020699902 U CN201020699902 U CN 201020699902U CN 201915889 U CN201915889 U CN 201915889U
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- suspension
- hydraulic control
- piston
- full
- flashboard
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- Expired - Fee Related
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Abstract
A hydraulic control four-ram blowout preventer comprises a shell, and fully sealing rams, shearing rams, suspension rams and half sealing rams are sequentially mounted on the shell from top to bottom. Tooth spaces are arranged on the surface of an inner hole of each suspension ram. The hydraulic control four-ram blowout preventer meets the operation requirement of large-diameter coil tubing with diameter of 2.375'' and above by increasing suspension load, and thereby work efficiency of oilfield workers and logging operational efficiency are improved, effect on estimating oil reservoir condition and well stimulation is evident, effect on reducing operational cost is evident, and effect on improving productivity is evident.
Description
Technical field
The utility model belongs to the oil field with coiled tubing operation technique field, is specifically related to a kind of hydraulic control four ram preventers.
Background technology
Coiled tubing is used for operation fields such as oil field well workover, well-flushing, acidifying, pressure break, relief cable well logging.Seal well head when four ram preventers are used for the coiled tubing operation, hang coiled tubing, cut off coiled tubing etc.At present, the coiled tubing operation adopts 1.5 " four ram preventers of coiled tubing, its suspension ability has only 8.5T, so can only utilize 1.5 " and following little latus rectum coiled tubing to carry out operation mostly, greatly reduce the operating efficiency and the development efficiency in oil field, increased working strength of workers.
The utility model content
The technical problem that the utility model solves: a kind of hydraulic control four ram preventers are provided, by improving suspended load, " and above big latus rectum coiled tubing job requirements; improve oil field work efficiency of workers and logging operation efficient; to the effect of effectively evaluating oil reservoir situation and well stimulation; reduce operating cost improves tar productivity and has remarkable effect to satisfy 2.375.
The technical solution adopted in the utility model: a kind of hydraulic control four ram preventers, comprise housing, housing is equipped with blind rams, shear ram, suspension flashboard from top to bottom successively and partly seals flashboard, and the bore area of described suspension flashboard has teeth groove.
Described a pair of blind rams is fixed on the front end of two full envelope pistons by two piston rod symmetries, two full envelope pistons lay respectively in two full sealing liquid cylinders, two full sealing liquid cylinder symmetries are fixed on the upper end in the housing, the rear end of two full sealing liquid cylinders is separately installed with full envelope handwheel by the internal and external threads cooperation, and the mandrel of two full envelope handwheels lays respectively at the rear of two piston rods.
Described a pair of suspension flashboard is fixed on two front ends that hang piston by two piston rod symmetries, two are hung piston and lay respectively in two suspension fluid cylinders, two are hung the fluid cylinder symmetry and are fixed on the interior middle part of housing, two rear ends that hang fluid cylinder are separately installed with the suspension handwheel by the internal and external threads cooperation, and the mandrel of two suspension handwheels lays respectively at the rear of two piston rods.
Advantage that the utility model compared with prior art has and effect:
1, the bore area of the utility model suspension flashboard has teeth groove, can hang the coiled tubing gravity of 28T, " and above big latus rectum coiled tubing job requirements; improve oil field work efficiency of workers and logging operation efficient; to the effect of effectively evaluating oil reservoir situation and well stimulation; reduce operating cost improves tar productivity and has remarkable effect to satisfy 2.375.
2, the utility model is provided with manual locking device, when needs long period sealing well head, rotatable full envelope handwheel is locked with blind rams, when the needs long period is hung coiled tubing, it is locked that rotatable suspension handwheel will hang flashboard, under the manual locking state, can close hydraulic system, energy-conserving and environment-protective.
Description of drawings
Fig. 1 is a structure sectional view of the present utility model,
Fig. 2 removes structure right view behind the handwheel for the utility model.
The specific embodiment
Below in conjunction with accompanying drawing 1,2 a kind of embodiment of the present utility model is described.
A kind of hydraulic control four ram preventers comprise housing 1, and and housing 1 is equipped with a pair of blind rams 5, a pair of shear ram 9, a pair of suspension flashboard 13 and one half envelope flashboards 14 from top to bottom successively.
A pair of blind rams 5 is fixed on the front end of two full envelope pistons 3 by two piston rod 4 symmetries, two full envelope pistons 3 lay respectively in two full sealing liquid cylinders 2, two full sealing liquid cylinder 2 symmetries are fixed on the upper end in the housing 1, the rear end of two full sealing liquid cylinders 2 is separately installed with full envelope handwheel 26 by the internal and external threads cooperation, and the mandrel 27 of two full envelope handwheels 26 lays respectively at the rear of two piston rods 4.
A pair of shear ram 9 is fixed on two front ends of shearing pistons 7 by two piston rod 8 symmetries, shears pistons 7 for two and lays respectively at two and shear in the fluid cylinders 6, shears fluid cylinder 2 symmetries for two and is fixed on top in the housing 1, and be positioned at the below of two full sealing liquid cylinders 2.
A pair of suspension flashboard 13 is fixed on two front ends that hang pistons 12 by piston rod 11 symmetries, and two are hung pistons 12 and lay respectively at two and hang in the fluid cylinders 10, and two are hung fluid cylinder 10 symmetries and are fixed on middle part in the housing 1, are positioned at two belows of shearing fluid cylinders 6.Two rear ends that hang fluid cylinder 10 are separately installed with suspension handwheel 28 by the internal and external threads cooperation, and the mandrel 29 of two suspension handwheels 28 lays respectively at the rear of two piston rods 11.The diameter of bore of described suspension flashboard 13 cooperates with big latus rectum coiled tubing external diameter, and bore area has teeth groove, to increase the mill sassafras power that hangs flashboard 13 and coiled tubing, improve suspended load, the suspension ability reaches 28T, can satisfy 2.375, and " and above big latus rectum coiled tubing carries out job requirements; improve oily positive work efficiency of workers and logging operation efficient; to the effect of effectively evaluating oil reservoir situation and well stimulation, reduces operating cost, improves tar productivity and has remarkable effect.
And one half envelope flashboards 14 are fixed on the front end of two and half envelope pistons 16 by two piston rod 17 symmetries, two and half envelope pistons 16 lay respectively in the two and half sealing liquid cylinders 15, two and half sealing liquid cylinders, 15 symmetries are fixed on the lower end in the housing 1, are positioned at two belows that hang fluid cylinder 10.
When not having coiled tubing to pass through in the preventer.Play hydraulic oil (the highest controlled pressure 21MPa) for the rear end of the piston 3 in the full sealing liquid cylinder 2 from the hydraulic fluid port of crossover sub 18, piston 3 can promote blind rams 5 and move and seal well head to the well center.When needs long period sealing well head, rotatable full envelope handwheel 26 cuts out hydraulic system, energy-conserving and environment-protective then by the rear end dieback of mandrel 27 with piston rod 4.Play hydraulic oil (the highest controlled pressure 21MPa) for the front end of full sealing liquid cylinder 2 inner carriers 4 from the hydraulic fluid port of crossover sub 19, piston 3 can be opened well head away from the well center by pulling blind rams 5.
When running into emergency, in the time of need cutting off coiled tubing.Play hydraulic oil (the highest controlled pressure 21MPa) for the rear end of shearing the piston 7 in the fluid cylinder 6 from the hydraulic fluid port of crossover sub 20, piston 7 meeting promotion shear rams 9 move to the well center cuts off coiled tubing.Play hydraulic oil (the highest controlled pressure 21MPa) for the front end of shearing fluid cylinder 6 inner carriers 7 from the hydraulic fluid port of crossover sub 21, piston 7 can be abdicated latus rectum away from the well center by pulling shear ram 9.Just can propose well head with coiled tubing this moment.
In the operation process, stop oil pipe down, when needing to hang coiled tubing.Play hydraulic oil (the highest controlled pressure 21MPa) from the hydraulic fluid port of crossover sub 22 to the rear end that hangs the piston 12 in the fluid cylinder 10, piston 12 meeting promotion suspension flashboards 13 move to the well center coiled tubing are blocked and is suspended in the well.When the needs long period was hung coiled tubing, the rotatable handwheel 28 that hangs cut out hydraulic system, energy-conserving and environment-protective then by the rear end dieback of mandrel 29 with piston rod 11.Play hydraulic oil (the highest controlled pressure 21MPa) from the hydraulic fluid port of crossover sub 23 to the front end that hangs the piston 12 in the fluid cylinder 10, the oil pipe that piston 12 meeting pulling suspension flashboards 13 will block away from the well center unclamps.
When having oil pipe to pass through in the preventer.Play hydraulic oil (the highest controlled pressure 21MPa) for the rear end of the piston 16 in the half sealing liquid cylinder 15 from the hydraulic fluid port of crossover sub 24, piston 16 can promote partly to seal flashboard 14 and move and semiclosed well head to the well center.Play hydraulic oil (the highest controlled pressure 21MPa) for the front end of the piston 16 in the half sealing liquid cylinder 15 from the hydraulic fluid port of crossover sub 25, piston 16 meeting pullings are partly sealed flashboard 14 and away from the well center well head are opened.
Claims (3)
1. hydraulic control four ram preventers, comprise housing (1), housing (1) is equipped with blind rams (5), shear ram (9) from top to bottom successively, hangs flashboard (13) and partly seals flashboard (14), and it is characterized in that: the bore area of described suspension flashboard (13) has teeth groove.
2. hydraulic control four ram preventers according to claim 1, it is characterized in that: described a pair of blind rams (5) is fixed on the front end of two full envelope pistons (3) by two piston rods (4) symmetry, two full envelope pistons (3) lay respectively in two full sealing liquid cylinders (2), two full sealing liquid cylinders (2) symmetry is fixed on the upper end in the housing (1), the rear end of two full sealing liquid cylinders (2) is separately installed with full envelope handwheel (26) by the internal and external threads cooperation, and the mandrel (27) of two full envelope handwheels (26) lays respectively at the rear of two piston rods (4).
3. hydraulic control four ram preventers according to claim 1 and 2, it is characterized in that: described a pair of suspension flashboard (13) is fixed on two front ends that hang piston (12) by two piston rods (11) symmetry, two are hung piston (12) and lay respectively in two suspension fluid cylinders (10), two are hung fluid cylinder (10) symmetry and are fixed on the interior middle part of housing (1), two rear ends that hang fluid cylinder (10) are separately installed with suspension handwheel (28) by the internal and external threads cooperation, and the mandrel (29) of two suspension handwheels (28) lays respectively at the rear of two piston rods (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206999026U CN201915889U (en) | 2010-12-30 | 2010-12-30 | Hydraulic control four-ram blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206999026U CN201915889U (en) | 2010-12-30 | 2010-12-30 | Hydraulic control four-ram blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201915889U true CN201915889U (en) | 2011-08-03 |
Family
ID=44415691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206999026U Expired - Fee Related CN201915889U (en) | 2010-12-30 | 2010-12-30 | Hydraulic control four-ram blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201915889U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639957A (en) * | 2016-12-02 | 2017-05-10 | 中国石油天然气股份有限公司 | Double-acting suction blowout preventer |
| CN109519143A (en) * | 2019-01-15 | 2019-03-26 | 陈超 | Four flashboard coiled tubing blowout preventers |
-
2010
- 2010-12-30 CN CN2010206999026U patent/CN201915889U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639957A (en) * | 2016-12-02 | 2017-05-10 | 中国石油天然气股份有限公司 | Double-acting suction blowout preventer |
| CN109519143A (en) * | 2019-01-15 | 2019-03-26 | 陈超 | Four flashboard coiled tubing blowout preventers |
| CN109519143B (en) * | 2019-01-15 | 2021-06-04 | 大庆丹枫石油技术开发有限公司 | Four-flashboard continuous oil pipe blowout preventer |
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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: 20110803 Termination date: 20171230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |