CN112647888A - Combined annular blowout preventer for petroleum drilling - Google Patents
Combined annular blowout preventer for petroleum drilling Download PDFInfo
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- CN112647888A CN112647888A CN202110270035.7A CN202110270035A CN112647888A CN 112647888 A CN112647888 A CN 112647888A CN 202110270035 A CN202110270035 A CN 202110270035A CN 112647888 A CN112647888 A CN 112647888A
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- 238000005553 drilling Methods 0.000 title claims abstract description 14
- 239000003208 petroleum Substances 0.000 title abstract description 6
- 238000007789 sealing Methods 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 15
- 230000002265 prevention Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000002596 correlated effect Effects 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention provides a combined annular blowout preventer for petroleum drilling, and relates to the technical field of oilfield exploitation equipment. This oil drilling is with combination annular preventer, including lower casing, the inboard fixedly connected with outer go-between in casing top down, the outer go-between inboard is through connecting rod fixedly connected with in-connection ring, the inboard spacing pipe of fixedly connected with of in-connection ring, the inboard of the antiskid cover on spacing pipe upper portion of the equal sliding connection of last push pedal top fixedly connected with rubberizing core and last push pedal and rubberizing core, stretch out the pipe in the inboard top of lower piston and the inboard bottom of last piston equal fixedly connected with, the outer top of piston outside and the outer bottom of the equal fixedly connected with of last piston outside stretch out the pipe down, spring bottom fixedly connected with briquetting, oil tank top middle part fixedly connected with oil pump. The blowout preventer has good blowout prevention effect, the blowout prevention structure is not easy to damage, the blowout prevention reliability is strong, and the heat dissipation capability is strong.
Description
Technical Field
The invention relates to the technical field of oilfield exploitation equipment, in particular to a combined annular blowout preventer for petroleum drilling.
Background
In the process of oil testing, well repairing and well completion operation, a blowout preventer is usually used for sealing a well head, so that the occurrence of blowout accidents is avoided.
In the process of oil drilling, the annular blowout preventer can seal an annular space between a pipe column and a shaft, however, the blowout prevention reliability of the existing annular blowout preventer needs to be improved, the hidden danger of blowout prevention failure exists, and the heat dissipation capacity of the blowout preventer is general.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a combined annular blowout preventer for petroleum drilling, which solves the problems of insufficient blowout prevention reliability and weak heat dissipation capability of the blowout preventer.
In order to achieve the purpose, the invention is realized by the following technical scheme: a combined annular blowout preventer for oil drilling comprises a lower shell, wherein an outer connecting ring is fixedly connected to the inner side of the top of the lower shell, an inner connecting ring is fixedly connected to the inner side of the outer connecting ring through a connecting rod, a limiting pipe is fixedly connected to the inner side of the inner connecting ring, anti-slip sleeves are fixedly connected to the outer sides of the upper portion and the lower portion of the limiting pipe, a lower piston is slidably connected to the outer side of the anti-slip sleeve at the lower portion of the limiting pipe, four limiting columns are uniformly arranged at the top of the lower piston, a lower push plate is fixedly connected to the bottom of the lower piston, a lower rubber core is fixedly connected to the bottom of the lower push plate, the lower push plate and the lower rubber core are slidably connected to the outer side of the anti-slip sleeve at the lower portion of the limiting pipe, an upper piston is slidably connected to the outer side of the anti-, the upper piston is connected to the inner side of the upper shell in a sliding manner, the top end of the upper piston is fixedly connected with an upper push plate, the top end of the upper push plate is fixedly connected with an upper rubber core, the upper push plate and the upper rubber core are both connected to the inner side of the anti-skidding sleeve on the upper portion of the limiting pipe in a sliding manner, the top end of the inner side of the lower piston and the bottom end of the inner side of the upper piston are both fixedly connected with inner telescopic pipes, the top end of the inner telescopic pipe on the top end of the lower piston is fixedly connected to the bottom end of the inner connecting ring, the bottom end of the inner telescopic pipe on the bottom end of the upper piston is fixedly connected to the top end of the inner connecting ring, the top end of the outer side of the lower piston and the bottom end of the outer side of the upper piston are both fixedly connected to outer connecting ring, the hydraulic oil-gas separator is characterized in that a straight rod is fixedly connected to the top end of the sliding groove, a waterproof pressure sensor is fixedly connected to the bottom end of the sliding groove at the left end of the inner side of the lower shell, a sliding block is fixedly connected to the left end and the right end of the lower portion of the lower piston, the sliding block is slidably connected to the inner side of the sliding groove, a spring is fixedly connected to the bottom end of the sliding block, a pressing block is fixedly connected to the bottom end of the spring, an oil tank is arranged at the right side of the lower shell, a display is fixedly connected to the right portion of the top end of the oil tank, the display is connected with the waterproof pressure sensor through a wireless signal, an oil pump is fixedly connected to the middle portion of the top end of the oil tank, an oil inlet pipe is fixedly connected to the front end of the oil pump, the, the inside fixedly connected with cooling tube of heating panel, the cooling panel left end fixedly connected with fan, the inboard fixedly connected with honeycomb duct of governing valve right part and honeycomb duct run through the left part of casing and the left part of outer go-between down, the bottom of casing is inboard down, go up the top of casing inboard, go out oil pipe and the junction of casing and outer go-between down and honeycomb duct and the junction of casing and outer go-between down all are provided with sealed the pad, the inboard fixedly connected with seal groove in casing top down, go up the inboard fixedly connected with sealing washer in casing bottom.
Preferably, one end of the radiating pipe is fixedly connected to the inner side of the left part of the regulating valve, and the other end of the radiating pipe penetrates through the top of the oil tank.
Preferably, the sealing groove and the sealing ring are in interference fit.
Preferably, the lower case is coupled to the upper case by a bolt.
Preferably, the left end, the right end, the front end and the rear end of the outer side of the lower part of the upper shell are rotatably connected with hanging rings.
Preferably, the sliding block is connected to the outer side of the straight rod in a sliding mode.
Preferably, the spring is arranged on the outer side of the straight rod.
Preferably, the lower pushing plate is slidably connected to the inner side of the lower shell, and the upper pushing plate is slidably connected to the inner side of the upper shell.
The working principle is as follows: when the overflow phenomenon occurs, the regulating valve is closed, the oil pump pumps oil into a position between the lower piston and the upper piston through the oil inlet pipe and the oil outlet pipe, the lower piston and the upper piston respectively push the lower rubber core and the upper rubber core away from the inner connecting ring through the lower push plate and the upper push plate, the upper rubber core and the lower rubber core are matched with the anti-slip sleeve to finish the anti-blowout work, the anti-blowout function is realized, the lower push plate and the upper push plate ensure that the lower rubber core and the upper rubber core are uniformly stressed, the upper piston, the lower piston, the inner connecting ring, the outer connecting ring, the inner telescopic pipe and the outer telescopic pipe jointly form an annular cavity, the annular cavity is only communicated with the oil outlet pipe and the flow guide pipe, the oil is isolated from the space between the lower shell and the upper shell except the annular cavity, the lower piston is limited through the matching of the sliding chute and the sliding block, the lower piston is limited by the matching of the limiting column and the limiting groove, the upper piston, the torque borne by the inner telescopic pipe and the outer telescopic pipe is reduced, the cross sections of the lower piston and the upper piston are U-shaped, the limiting of the lower piston to the upper piston is guaranteed, the volume of an annular cavity is reduced, when an overflow phenomenon is generated, the space in the annular cavity can be quickly filled with oil, when the lower piston moves downwards, the slider extrudes the spring, the spring applies pressure to the waterproof pressure sensor through a pressing block, the pressure generated by the waterproof pressure sensor is displayed on a display, the pressure is positively correlated with the distance between the lower rubber core and the inner connecting ring, so that whether the lower rubber core and the upper rubber core are damaged or not is judged, if the pressure is abnormal, the upper rubber core and the lower rubber core are not in proper positions, the oil of the upper piston and the lower piston can be reused to dissipate heat and be used as liquid in the drilling process, the oil is pumped out from the oil tank, and enters the annular cavity through the oil inlet pipe, the oil pump and the, the heat inside the lower shell and the upper shell is transferred to the heat dissipation plate through the flow guide pipe, the adjusting valve and the heat dissipation pipe, and is dissipated by the fan.
The invention provides a combined annular blowout preventer for petroleum drilling. The method has the following beneficial effects:
1. the upper piston, the lower piston, the inner connecting ring, the outer connecting ring, the inner telescopic pipe and the outer telescopic pipe jointly form an annular cavity, the annular cavity is only communicated with the oil outlet pipe and the flow guide pipe, the regulating valve is closed when an overflow phenomenon occurs, the oil pump pumps oil into the annular cavity through the oil inlet pipe and the oil outlet pipe, the lower piston and the upper piston push the lower rubber core and the upper rubber core away from the inner connecting ring through the lower push plate and the upper push plate respectively, the lower rubber core and the upper rubber core are matched with the anti-slip sleeve to complete blowout prevention work to realize blowout prevention function, the lower push plate and the upper push plate ensure that the lower rubber core and the upper rubber core are stressed uniformly, the oil is isolated from the space between the lower shell and the upper shell except the annular cavity to ensure the blowout prevention effect, the upper piston and the lower piston are prevented from rotating around the axis of the inner connecting ring through the matching of the sliding chute and the sliding block and the matching of the limiting column and, the pressure generated by the spring to the waterproof pressure sensor through the pressing block is displayed on the display, and the pressure is positively correlated with the distance between the lower rubber core and the inner connecting ring, so that whether the lower rubber core and the upper rubber core are damaged or not is judged, and the blowout prevention reliability is improved.
2. According to the invention, the oil liquid for controlling the upper piston and the lower piston can be reused as the heat dissipation liquid, in the drilling process, the oil pump is matched with the oil inlet pipe, the oil outlet pipe, the flow guide pipe, the regulating valve and the heat dissipation pipe, so that the heat inside the lower shell and the upper shell is transferred to the heat dissipation plate by the oil liquid, and is dissipated by the fan, the heat dissipation capability of the blowout preventer is improved, the adverse effect of the heat generated in the drilling process on the blowout preventer is avoided, and the service life of the blowout preventer is prolonged.
Drawings
FIG. 1 is a front view structural diagram of the present invention;
FIG. 2 is a perspective view of the outer attachment ring of the present invention;
FIG. 3 is an enlarged view of FIG. 1 at A;
FIG. 4 is an enlarged view of FIG. 1 at B;
FIG. 5 is a top view of the upper piston of the present invention;
fig. 6 is a top view of the lower piston of the present invention.
Wherein, 1, a lower shell; 2. an outer connecting ring; 3. an inner connecting ring; 4. a limiting pipe; 5. an anti-slip sleeve; 6. a lower piston; 7. a limiting column; 8. a lower push plate; 9. feeding a rubber core; 10. an upper piston; 11. a limiting groove; 12. an upper housing; 13. a push plate is arranged; 14. gluing a core; 15. an inner telescopic pipe; 16. extending the pipe outwards; 17. a chute; 18. a straight rod; 19. a waterproof type pressure sensor; 20. a slider; 21. a spring; 22. briquetting; 23. an oil tank; 24. a display; 25. an oil pump; 26. an oil inlet pipe; 27. an oil outlet pipe; 28. a heat dissipation plate; 29. adjusting a valve; 30. a radiating pipe; 31. a fan; 32. a flow guide pipe; 33. a gasket; 34. a sealing groove; 35. a seal ring; 36. a lifting ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1-6, an embodiment of the present invention provides a combined annular blowout preventer for oil drilling, which includes a lower casing 1, an outer connecting ring 2 fixedly connected to the inner side of the top of the lower casing 1, an inner connecting ring 3 fixedly connected to the inner side of the outer connecting ring 2 via a connecting rod, a limiting pipe 4 fixedly connected to the inner side of the inner connecting ring 3, anti-slip sleeves 5 fixedly connected to the outer sides of the upper and lower portions of the limiting pipe 4, a lower piston 6 slidably connected to the outer side of the anti-slip sleeve 5 at the lower portion of the limiting pipe 4, a lower piston 6 slidably connected to the outer side of the lower piston 6 slidably connected to the inner side of the lower casing 1, four limiting posts 7 uniformly arranged on the top of the lower piston 6, a lower push plate 8 fixedly connected to the bottom end of the lower piston 6, a lower rubber core 9 fixedly connected to the bottom end of the lower push plate 8, and a lower rubber, four limiting grooves 11 are uniformly arranged at the bottom of an upper piston 10, the limiting grooves 11 are connected with a limiting column 7 in a sliding manner, the upper piston 10 is connected with the inner side of an upper shell 12 in a sliding manner, the top end of the upper piston 10 is fixedly connected with an upper push plate 13, the top end of the upper push plate 13 is fixedly connected with a sizing core 14, the upper push plate 13 and the sizing core 14 are both connected with the inner side of an anti-skidding sleeve 5 at the upper part of a limiting pipe 4 in a sliding manner, the top end of the inner side of a lower piston 6 and the bottom end of the inner side of the upper piston 10 are both fixedly connected with an inner telescopic pipe 15, the top end of the inner telescopic pipe 15 at the top end of the lower piston 6 is fixedly connected with the bottom end of an inner connecting ring 3, the bottom end of the inner telescopic pipe 15 at the bottom end of the upper piston 10 is fixedly connected with the top end of the inner connecting ring 3, the top end of the outer side of the lower piston 6, the left end and the right end of the inner side of the upper part of the lower shell 1 are respectively provided with a sliding groove 17, the top end of the sliding groove 17 is fixedly connected with a straight rod 18, the bottom end of the sliding groove 17 at the left end of the inner side of the lower shell 1 is fixedly connected with a waterproof pressure sensor 19, the left end and the right end of the lower part of the lower piston 6 are respectively fixedly connected with a sliding block 20, the sliding block 20 is slidably connected with the inner side of the sliding groove 17, the bottom end of the sliding block 20 is fixedly connected with a spring 21, the bottom end of the spring 21 is fixedly connected with a pressing block 22, the right side of the lower shell 1 is provided with an oil tank 23, the right part of the top end of the oil tank 23 is fixedly connected with a display 24, the display 24 is connected with the waterproof pressure sensor 19 through a wireless signal, the middle part of the top end of the oil tank 23, a heat dissipation plate 28 and an adjusting valve 29 are arranged on the left side of the lower shell 1, the adjusting valve 29 is located behind the heat dissipation plate 28, a heat dissipation pipe 30 is fixedly connected inside the heat dissipation plate 28, a fan 31 is fixedly connected to the left end of the heat dissipation plate 28, a flow guide pipe 32 is fixedly connected to the inner side of the right portion of the adjusting valve 29 and penetrates through the left portion of the lower shell 1 and the left portion of the outer connecting ring 2, a sealing gasket 33 is arranged at the inner side of the bottom of the lower shell 1, the inner side of the top of the upper shell 12, a sealing gasket 35 is fixedly connected to the joint of the oil outlet pipe 27 and the lower shell 1 and the outer connecting ring 2 and the joint of the flow guide pipe 32 and the lower shell 1 and the outer connecting ring 2, a sealing groove 34 is fixedly connected to the inner side of the top of the lower shell 1, a sealing gasket 35 is fixedly connected to the inner side of the bottom of the upper shell 12, the adjusting valve 29 is closed when an overflow phenomenon The direction of the connecting ring 3 is pushed away, the lower rubber core 9 and the upper rubber core 14 are matched with the anti-skid sleeve 5 to realize the function of combined blowout prevention, the lower push plate 8 and the upper push plate 13 ensure that the lower rubber core 9 and the upper rubber core 14 are stressed uniformly, the upper piston 10, the lower piston 6, the inner connecting ring 3, the outer connecting ring 2, the inner telescopic pipe 15 and the outer telescopic pipe 16 jointly form an annular cavity, the annular cavity is only communicated with the oil outlet pipe 27 and the flow guide pipe 32, the oil is isolated from the space between the lower shell 1 and the upper shell 12 except the annular cavity, the lower piston 6 is limited through the matching of the sliding groove 17 and the sliding block 20, the lower piston 6 is used for limiting the upper piston 10 through the matching of the limiting column 7 and the limiting groove 11, the lower piston 6 and the upper piston 10 are prevented from rotating around the axis of the inner connecting ring 3, the torque borne by the inner telescopic pipe 15 and the outer telescopic pipe 16 is reduced, the cross sections of the lower piston 6, when guaranteeing piston 6 down to the spacing of last piston 10, reduce annular cavity volume, when having guaranteed that the overflow phenomenon produces, the space in the annular cavity can be full of by fluid fast, lower piston 6 moves the in-process down, slider 20 extrusion spring 21, spring 21 exerts pressure to waterproof type pressure sensor 19 through briquetting 22, the pressure that produces waterproof type pressure sensor 19 obtains appearing in display 24 department, this pressure is positive correlation with the interval of lower gluey core 9 and inner connecting ring 3, thereby judge down gluey core 9 and last gluey core 14 and whether have the phenomenon of damage, the reliability of preventer has been improved.
The top that oil tank 23 is run through to the left part inboard and the cooling tube 30 other end of cooling tube 30 one end fixed connection of governing valve 29, the fluid of lower piston 6 and last piston 10 can be used repeatedly as the radiating fluid, oil pump 25 takes fluid out from oil tank 23, fluid is through advancing oil pipe 26, oil pump 25 and play oil pipe 27 get into down between casing 1 and the last casing 12, through honeycomb duct 32, governing valve 29 and cooling tube 30 will be down the inside heat transfer of casing 1 and last casing 12 to heating panel 28, dispel the heat by fan 31, the heat-sinking capability of preventer has been improved, the life of the application of preventer has been improved.
The sealing groove 34 and the sealing ring 35 are in interference fit, the sealing groove 34 and the sealing ring 35 seal a gap between the lower shell 1 and the upper shell 12, the sealing gasket 33 is matched with the oil inlet pipe 26 and the flow guide pipe 32 to seal the lower shell 1, and the sealing gaskets 33 on the inner sides of the lower shell 1 and the upper shell 12 seal gaps between the lower shell 1 and the upper shell 12 and a tubular column in the well, so that the blowout preventer has dustproof capacity.
The lower case 1 is connected to the upper case 12 by bolts.
The left end, the right end, the front end and the rear end of the outer side of the lower portion of the upper shell 12 are rotatably connected with hanging rings 36, and therefore workers can conveniently hoist the annular blowout preventer.
The slider 20 is slidably connected to the outside of the straight bar 18.
The spring 21 is arranged on the outer side of the straight rod 18, the straight rod 18 limits the sliding blocks 20 and the spring 21, and the right spring 21 of the lower shell 1 ensures that the left sliding block 20 and the right sliding block 20 are stressed equally, so that the left side and the right side of the lower piston 6 are ensured to be stressed equally.
The lower push plate 8 is connected to the inner side of the lower shell 1 in a sliding manner, and the upper push plate 13 is connected to the inner side of the upper shell 12 in a sliding manner.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A combined annular blowout preventer for oil drilling, comprising a lower housing (1), characterized in that: the inner side of the top of the lower shell (1) is fixedly connected with an outer connecting ring (2), the inner side of the outer connecting ring (2) is fixedly connected with an inner connecting ring (3) through a connecting rod, the inner side of the inner connecting ring (3) is fixedly connected with a limiting pipe (4), the outer sides of the upper part and the lower part of the limiting pipe (4) are both fixedly connected with anti-skidding sleeves (5), the outer side of the anti-skidding sleeve (5) at the lower part of the limiting pipe (4) is slidably connected with a lower piston (6), the lower piston (6) is slidably connected with the inner side of the lower shell (1), the top of the lower piston (6) is uniformly provided with four limiting columns (7), the bottom of the lower piston (6) is fixedly connected with a lower push plate (8), the bottom of the lower push plate (8) is fixedly connected with a lower rubber core (9), and the lower push plate (8) and the lower rubber core, the anti-skidding device is characterized in that an upper piston (10) is connected to the outer side of an anti-skidding sleeve (5) at the upper part of a limiting pipe (4) in a sliding mode, four limiting grooves (11) are uniformly formed in the bottom of the upper piston (10), the limiting grooves (11) are connected with limiting columns (7) in a sliding mode, the upper piston (10) is connected to the inner side of an upper shell (12) in a sliding mode, an upper push plate (13) is fixedly connected to the top end of the upper piston (10), an upper rubber core (14) is fixedly connected to the top end of the upper push plate (13), the upper push plate (13) and the upper rubber core (14) are connected to the inner side of the anti-skidding sleeve (5) at the upper part of the limiting pipe (4) in a sliding mode, inner expansion pipes (15) are fixedly connected to the top end of the inner side of a lower piston (6) and the bottom end of the inner side of the upper piston (10), the top end of the inner expansion pipe (15) at the, the top end of the outer side of the lower piston (6) and the bottom end of the outer side of the upper piston (10) are fixedly connected with an outer telescopic pipe (16), the top end of the outer telescopic pipe (16) at the top end of the lower piston (6) is fixedly connected with the bottom end of the outer connecting ring (2), the bottom end of the outer telescopic pipe (16) at the bottom end of the upper piston (10) is fixedly connected with the top end of the outer connecting ring (2), sliding grooves (17) are formed in the left end and the right end of the inner side of the upper portion of the lower shell (1), a straight rod (18) is fixedly connected with the top end of the sliding groove (17) at the left end of the inner side of the lower shell (1), waterproof pressure sensors (19) are fixedly connected with the left end and the right end of the lower portion of the lower piston (6), sliding blocks (20) are fixedly connected with the left end, spring (21) bottom fixedly connected with briquetting (22), casing (1) right side is provided with oil tank (23) down, oil tank (23) top right part fixedly connected with display (24) and display (24) link to each other with waterproof type pressure sensor (19) through radio signal, oil tank (23) top middle part fixedly connected with oil pump (25), oil pump (25) front end fixedly connected with advances oil pipe (26) and run through the top of oil tank (23), oil pump (25) rear end fixedly connected with goes out oil pipe (27) and run through the right part of casing (1) down and the right part of outer go-between (2), casing (1) left side is provided with heating panel (28) and governing valve (29) is located heating panel (28) rear down, the inside fixedly connected with cooling tube (30) of heating panel (28), heating panel (28) left end fixedly connected with fan (31), governing valve (29) right part inboard fixedly connected with honeycomb duct (32) and honeycomb duct (32) run through the left part of casing (1) and the left part of outer go-between (2) down, the bottom inboard of casing (1), the top inboard of going up casing (12) down, go out oil pipe (27) and the junction of casing (1) and outer go-between (2) down and honeycomb duct (32) and the junction of casing (1) and outer go-between (2) down all are provided with sealed pad (33), casing (1) top inboard fixedly connected with seal groove (34) down, go up casing (12) bottom inboard fixedly connected with sealing washer (35).
2. The combination annular blowout preventer according to claim 1, wherein: one end of the radiating pipe (30) is fixedly connected to the inner side of the left part of the regulating valve (29), and the other end of the radiating pipe (30) penetrates through the top of the oil tank (23).
3. The combination annular blowout preventer according to claim 1, wherein: the sealing groove (34) is in interference fit with the sealing ring (35).
4. The combination annular blowout preventer according to claim 1, wherein: the lower shell (1) is connected with the upper shell (12) through bolts.
5. The combination annular blowout preventer according to claim 1, wherein: the left end, the right end, the front end and the rear end of the outer side of the lower part of the upper shell (12) are rotatably connected with hanging rings (36).
6. The combination annular blowout preventer according to claim 1, wherein: the sliding block (20) is connected to the outer side of the straight rod (18) in a sliding mode.
7. The combination annular blowout preventer according to claim 1, wherein: the spring (21) is arranged on the outer side of the straight rod (18).
8. The combination annular blowout preventer according to claim 1, wherein: the lower push plate (8) is connected to the inner side of the lower shell (1) in a sliding mode, and the upper push plate (13) is connected to the inner side of the upper shell (12) in a sliding mode.
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| CN202110270035.7A CN112647888B (en) | 2021-03-12 | 2021-03-12 | Combined annular blowout preventer for petroleum drilling |
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|---|---|---|---|
| CN202110270035.7A CN112647888B (en) | 2021-03-12 | 2021-03-12 | Combined annular blowout preventer for petroleum drilling |
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| CN112647888B CN112647888B (en) | 2021-08-06 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5273108A (en) * | 1992-10-21 | 1993-12-28 | Piper Oilfield Products, Inc. | Closure apparatus for blow out prevention |
| CN201539227U (en) * | 2009-11-06 | 2010-08-04 | 宝鸡石油机械有限责任公司 | Combined annular blowout preventer |
| US20150122482A1 (en) * | 2013-02-18 | 2015-05-07 | Dwight Baker | Annular Blowout Container (ABOC) |
| CN205977159U (en) * | 2016-07-17 | 2017-02-22 | 李梦瑶 | Tertiary sealed blowout preventer of hydraulic control |
| CN206071519U (en) * | 2016-08-25 | 2017-04-05 | 江苏有尧石油机械有限公司 | Annular preventer |
| CN107313737A (en) * | 2017-06-30 | 2017-11-03 | 中国石油大学(华东) | Double glue core annular preventers |
| CN110924891A (en) * | 2019-12-12 | 2020-03-27 | 胡全生 | Movable double-rubber-core underwater annular blowout preventer |
-
2021
- 2021-03-12 CN CN202110270035.7A patent/CN112647888B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5273108A (en) * | 1992-10-21 | 1993-12-28 | Piper Oilfield Products, Inc. | Closure apparatus for blow out prevention |
| CN201539227U (en) * | 2009-11-06 | 2010-08-04 | 宝鸡石油机械有限责任公司 | Combined annular blowout preventer |
| US20150122482A1 (en) * | 2013-02-18 | 2015-05-07 | Dwight Baker | Annular Blowout Container (ABOC) |
| CN205977159U (en) * | 2016-07-17 | 2017-02-22 | 李梦瑶 | Tertiary sealed blowout preventer of hydraulic control |
| CN206071519U (en) * | 2016-08-25 | 2017-04-05 | 江苏有尧石油机械有限公司 | Annular preventer |
| CN107313737A (en) * | 2017-06-30 | 2017-11-03 | 中国石油大学(华东) | Double glue core annular preventers |
| CN110924891A (en) * | 2019-12-12 | 2020-03-27 | 胡全生 | Movable double-rubber-core underwater annular blowout preventer |
Non-Patent Citations (2)
| Title |
|---|
| 程艳: "环形防喷器设计的几个要点分析 ", 《钻采工艺》 * |
| 胡霄等: "补偿式多用途环形防喷器的研制 ", 《石油矿场机械》 * |
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