CN113389517B - Blowout preventer applicable to multi-specification drill pipes and having pressure relief function for oil exploitation - Google Patents
Blowout preventer applicable to multi-specification drill pipes and having pressure relief function for oil exploitation Download PDFInfo
- Publication number
- CN113389517B CN113389517B CN202110871782.6A CN202110871782A CN113389517B CN 113389517 B CN113389517 B CN 113389517B CN 202110871782 A CN202110871782 A CN 202110871782A CN 113389517 B CN113389517 B CN 113389517B
- Authority
- CN
- China
- Prior art keywords
- sliding
- frame
- oil pipeline
- plate
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 58
- 230000002265 prevention Effects 0.000 claims abstract description 27
- 238000001514 detection method Methods 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 8
- 230000008859 change Effects 0.000 abstract description 6
- 239000003208 petroleum Substances 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 description 9
- 230000009471 action Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- 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
- E21B33/061—Ram-type blow-out preventers, e.g. with pivoting rams
- E21B33/062—Ram-type blow-out preventers, e.g. with pivoting rams with sliding rams
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
Landscapes
- 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)
- Earth Drilling (AREA)
- Drilling And Boring (AREA)
Abstract
The invention relates to a blowout preventer, in particular to a blowout preventer which is applicable to multi-specification drilling rods and has a pressure relief function and used for petroleum exploitation, and comprises an oil pipeline, a replacement mechanism, a first blowout prevention mechanism, a second blowout prevention mechanism and the like; the oil pipeline is provided with a threaded hole, the replacement mechanism is arranged on the oil pipeline, the first blowout prevention mechanism is arranged on the oil pipeline, and the second blowout prevention mechanism is arranged on the oil pipeline. Through the cooperation of drilling rod and first mount and last device, can change the drilling rod of different diameters as required, when the drilling rod is great, the drilling rod can extrude first mount and last device motion for the second mount no longer limits the second carriage, and by the second reset spring of tensile state can recover thereupon, makes second carriage downstream, when the inside atmospheric pressure of oil pipeline is too big, the second mount then can promote the second flashboard and move towards the direction that is close to each other, thereby can play the effect that prevents the blowout equally, reached the effect that makes this equipment can be applicable to different specification drilling rods.
Description
Technical Field
The invention relates to a blowout preventer, in particular to a blowout preventer which is applicable to multi-specification drill pipes and has a pressure relief function for oil exploitation.
Background
The blowout preventer is used for closing a wellhead in the operation processes of oil testing, well repairing, well completion and the like so as to prevent blowout accidents, can integrate the full sealing function and the half sealing function, has the characteristics of simple structure, easy operation, high pressure resistance and the like, and is a common safety sealing wellhead device for preventing blowout in oil fields. When the blowout preventer is specifically used, the blowout preventer is required to be installed on a wellhead casing head, and when the oil gas pressure in a well is high, the wellhead can be closed by the blowout preventer so as to ensure the safety during use.
However, after the wellhead is closed by the existing blowout preventer, once the pressure in the well is higher than the rated pressure of the blowout preventer, explosion hidden danger exists, so that great potential safety hazard is brought to petroleum operation, the blowout preventer is only applicable to drill pipes with one diameter, and the drill pipes used by an oil well are drill pipe combinations with different diameters, so that the corresponding blowout preventer needs to be replaced while the drill pipes are replaced, the problem that more accessories occupy space exists, and the working efficiency is seriously affected.
Disclosure of Invention
Accordingly, it is necessary to solve the above problems by providing a blowout preventer which can automatically release the air pressure inside the oil pipeline to prevent explosion, is applicable to various drill pipes for oil exploitation of different specifications of drill pipes, and has a pressure release function, so as to solve the problems of high potential safety hazard and inapplicability to various specifications of drill pipes in the prior art.
The technical proposal is as follows: the utility model provides an oil development is with preventer that is suitable for many specifications drilling rod and has pressure release function, includes oil pipeline, change mechanism and first blowout prevention mechanism, is provided with the screw hole on the oil pipeline, changes the mechanism and locates on the oil pipeline, and first blowout prevention mechanism locates on the oil pipeline.
More preferably, the replacing mechanism comprises a nut, a drill rod, a first fixing plate, a second fixing plate, a first sliding rod, a first fixing frame, a first reset spring and a second fixing frame, wherein the nut is connected to the oil pipeline in a threaded fit mode, the drill rod is connected to other lifting devices in a sliding fit mode, the drill rod is fixedly connected with the first fixing plate, the top of the oil pipeline is connected with the two second fixing plates, the second fixing plates are connected with the first sliding rod in a sliding mode, the first fixing frames are connected between the two first sliding rods in a common mode, the first fixing frames are in contact with the drill rod, the first reset spring is connected between the second fixing plates and the first fixing frames, and the second fixing frames are symmetrically connected to the first fixing frames.
More preferably, the first blowout prevention mechanism comprises a third fixing frame, an electric push rod, a first sliding frame, a first fixing rod, a second sliding frame, a second reset spring, a second fixing rod, a first flashboard, a second flashboard and a third reset spring, wherein one side of the oil pipeline is connected with the third fixing frame, the electric push rod is installed on the third fixing frame, one end of the electric push rod is connected with the first sliding frame, the first sliding frame is connected with the third fixing frame in a sliding mode, the first fixing rod is connected with the second sliding frame in a sliding mode, the second sliding frame is contacted with the second fixing frame, a second reset spring is connected between the second sliding frame and the first sliding frame, two pairs of second fixing rods are symmetrically connected on the oil pipeline, the first flashboard is connected with the second sliding frame in a sliding mode, the first flashboard is connected with the oil pipeline in a sliding mode, the other pair of second fixing rods is connected with the second flashboard in a sliding mode, the second flashboard is connected with the same side of the first flashboard and the second flashboard is connected with the third reset spring in a sliding mode, and the second flashboard is connected with the same with the second reset spring.
More preferably, the oil pipeline further comprises a second blowout prevention mechanism, the second blowout prevention mechanism is arranged on the oil pipeline, the second blowout prevention mechanism comprises a fourth fixing frame, a third sliding frame, a fourth reset spring, a sliding plate, a fourth sliding frame and a fifth reset spring, the inner wall of the oil pipeline is symmetrically connected with the fourth fixing frame, the fourth fixing frame is connected with the third sliding frame in a sliding mode, the fourth reset spring is connected between the third sliding frame and the fourth fixing frame, the sliding plate is connected with the sliding plate in a sliding mode on the third sliding frame, the sliding plate is matched with the oil pipeline in a sliding mode, the fourth sliding frame is connected on the sliding plate, and the fifth reset spring is connected between the fourth sliding frame and the sliding plate.
More preferably, the device further comprises a lifting mechanism, wherein the lifting mechanism is arranged on the oil pipeline and comprises a third fixed rod, a fifth sliding frame, a sixth reset spring, a wedge plate, a seventh reset spring, a pressure sensor and an alarm, the top of the oil pipeline is symmetrically connected with the third fixed rod, the fifth sliding frame is connected to the third fixed rod in a sliding mode and matched with the sliding plate in a sliding mode, the fifth sliding frame is matched with the oil pipeline in a sliding mode, the fifth sliding frame is contacted with the first fixed plate, a sixth reset spring is connected between the fifth sliding frame and the oil pipeline, the wedge plate is connected with the wedge plate in a sliding mode, the wedge plate is contacted with the sliding plate, the seventh reset spring is connected between the wedge plate and the fifth sliding frame, the pressure sensor is connected to the fifth sliding frame, the alarm is connected to the fifth sliding frame, and the alarm is connected with the pressure sensor.
More preferably, the device further comprises a detection mechanism, wherein the detection mechanism is arranged on the oil pipeline and comprises a fixed ring, a second sliding rod, a sliding ring, an eighth reset spring and a fixed strip, the fixed ring is connected to the inner wall of the oil pipeline, a drill rod penetrates through the fixed ring, the second sliding rod is symmetrically and slidably connected to the fixed ring, the sliding ring is commonly connected between the two second sliding rods, the drill rod penetrates through the sliding ring, the eighth reset spring is symmetrically connected between the sliding ring and the fixed ring, the top end of the second sliding rod is connected with the fixed strip, the fixed strip is in contact with the fourth sliding frame, the fixed strip is in sliding fit with the fourth fixed frame, and the fixed strip is in sliding fit with the sliding plate.
The invention has the following advantages:
through the cooperation of second carriage and first flashboard, the second carriage can promote the movement of the direction that first flashboard is close to each other for first flashboard is wrapped the drilling rod, thereby makes oil pipeline inside be in sealed state, and then can prevent that the blowout from taking place, has reached can be automatically with oil pipeline inside seal in order to prevent the effect that the blowout takes place.
Through the cooperation of fixed strip and fourth carriage, the fixed strip can promote fourth carriage upward movement for the fourth carriage no longer blocks up the sliding plate, thereby makes the inside atmospheric pressure of oil pipeline obtain releasing, can prevent that the inside pressure of oil pipeline from being too big and causing the explosion, and then can avoid causing the injury to personnel because of the explosion, has reached the effect that can release the inside atmospheric pressure of oil pipeline in order to prevent the explosion automatically.
Through the cooperation of drilling rod and first mount and last device, can change the drilling rod of different diameters as required, when the drilling rod is great, the drilling rod can extrude first mount and last device motion for the second mount no longer limits the second carriage, and the second reset spring that is in tensile state can reset thereupon, makes second carriage downward movement, and when the inside atmospheric pressure of oil pipeline is too big, the second mount then can promote the second flashboard and move towards the direction that is close to each other, thereby can play the effect of preventing the blowout equally, reached the effect that makes this equipment can be applicable to different specification drilling rods.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic view of a partially cut-away perspective structure of the present invention.
Fig. 3 is a schematic perspective view of a cut-away perspective view of the exchange mechanism of the present invention.
Fig. 4 is an enlarged perspective view of the present invention a.
Fig. 5 is an enlarged perspective view of the present invention B.
Fig. 6 is a schematic diagram of a split three-dimensional structure of the detection mechanism of the present invention.
Fig. 7 is an enlarged perspective view of the present invention C.
Fig. 8 is an enlarged perspective view of the present invention D.
Wherein the above figures include the following reference numerals: 1: oil pipeline, 2: replacement mechanism, 21: nut, 22: drill rod, 23: first fixed plate, 24: second fixed plate, 25: first slide bar, 26: first mount, 27: first return spring, 28: second mount, 3: first blowout prevention mechanism, 31: third mount, 32: electric putter, 33: first carriage, 34: first dead lever, 35: second carriage, 36: second return spring, 37: second fixing lever, 38: first shutter, 39: second shutter, 311: third return spring, 4: second blowout prevention mechanism, 41: fourth mount, 42: third carriage, 43: fourth return spring, 44: slide plate, 45: fourth carriage, 46: fifth return spring, 5: lifting mechanism, 51: third fixed lever, 52: fifth carriage, 53: sixth return spring, 54: wedge plate, 55: seventh return spring, 56: pressure sensor, 57: alarm, 6: detection mechanism, 61: fixing ring, 62: second slide bar, 63: slip ring, 64: eighth return spring, 65: and fixing strips.
Detailed Description
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Examples: the utility model provides a preventer that is suitable for many specifications drilling rod and has pressure release function for oil development, as shown in fig. 1-8, including oil pipeline 1, change mechanism 2 and first blowout prevention mechanism 3, be provided with the screw hole on the oil pipeline 1, change mechanism 2 locates on the oil pipeline 1, change mechanism 2 is used for making this equipment can be applicable to different specification drilling rods 22, first blowout prevention mechanism 3 locates on the oil pipeline 1, first blowout prevention mechanism 3 is used for preventing the blowout.
The replacing mechanism 2 comprises a nut 21, a drill rod 22, a first fixing plate 23, a second fixing plate 24, a first sliding rod 25, a first fixing frame 26, a first reset spring 27 and a second fixing frame 28, wherein the nut 21 is connected to the oil pipeline 1 in a threaded fit mode, the drill rod 22 is connected to other lifting equipment, the drill rod 22 is in sliding fit with the nut 21, the first fixing plate 23 is fixedly connected to the drill rod 22, two second fixing plates 24 are connected to the top of the oil pipeline 1, the first sliding rod 25 is connected to the second fixing plate 24 in a sliding mode, the first fixing frames 26 are connected between the two first sliding rods 25 together, the first fixing frames 26 are in contact with the drill rod 22, the first reset spring 27 is connected between the second fixing frames 24 and the first fixing frames 26, the first reset spring 27 is used for driving the first fixing frames 26 and devices on the first fixing frames 26 to reset, the second fixing frames 28 are symmetrically connected to the first fixing frames 26 and are used for pushing the second sliding frames 35 to move.
The first blowout prevention mechanism 3 comprises a third fixing frame 31, an electric push rod 32, a first sliding frame 33, a first fixing rod 34, a second sliding frame 35, a second return spring 36, a second fixing rod 37, a first flashboard 38, a second flashboard 39 and a third return spring 311, wherein one side of the oil pipeline 1 is connected with the third fixing frame 31, the electric push rod 32 is arranged on the third fixing frame 31, the electric push rod 32 is used for driving the first sliding frame 33 and devices on the first sliding frame 33 to move, one end of the electric push rod 32 is connected with the first sliding frame 33, the first sliding frame 33 is connected with the third fixing frame 31 in a sliding way, the first sliding frame 33 is connected with the first fixing rod 34 in a sliding way, the second sliding frame 35 is used for pushing the first flashboard 38 to move towards the direction approaching each other, the second sliding frame 35 is contacted with the second fixing frame 28, a second return spring 36 is connected between the second sliding frame 35 and the first sliding frame 33, the second return spring 36 is used for driving the second sliding frame 35 to move downwards, two pairs of second fixing rods 37 are symmetrically connected to the oil pipeline 1, a first gate plate 38 is connected to one pair of second fixing rods 37 in a sliding manner, the first gate plate 38 is used for wrapping the drill rod 22, the first gate plate 38 is contacted with the second sliding frame 35, the first gate plate 38 is connected with the oil pipeline 1 in a sliding manner, a second gate plate 39 is connected to the other pair of second fixing rods 37 in a sliding manner, the second gate plate 39 is also used for wrapping the drill rod 22, the second gate plate 39 is connected with the oil pipeline 1 in a sliding manner, the first gate plate 38 is contacted with the second gate plate 39 on the same side, a third return spring 311 is connected between the first gate plate 38 and the oil pipeline 1, the third return spring 311 is used for driving the first gate plate 38 to reset, a third return spring 311 is also connected between the second shutter 39 and the oil delivery pipe 1.
The oil pipeline 1 is characterized by further comprising a second blowout prevention mechanism 4, the second blowout prevention mechanism 4 is arranged on the oil pipeline 1, the second blowout prevention mechanism 4 is used for preventing blowout, the second blowout prevention mechanism 4 comprises a fourth fixing frame 41, a third sliding frame 42, a fourth reset spring 43, a sliding plate 44, a fourth sliding frame 45 and a fifth reset spring 46, the inner wall of the oil pipeline 1 is symmetrically connected with the fourth fixing frame 41, the fourth fixing frame 41 is connected with the third sliding frame 42 in a sliding mode, the fourth reset spring 43 is connected between the third sliding frame 42 and the fourth fixing frame 41, the fourth reset spring 43 is used for driving the sliding plate 44 and a device arranged on the sliding frame 41 to reset, the sliding plate 44 is connected with the sliding plate 44 in a sliding mode, the sliding plate 44 is used for limiting the wedge plate 54, the sliding plate 44 is matched with the oil pipeline 1 in a sliding mode, the fourth sliding frame 45 is connected with the fourth sliding plate 44, the fifth reset spring 46 is connected between the fourth sliding frame 45 and the sliding plate 44, and the fifth reset spring 46 is used for driving the fourth sliding frame 45 to reset.
The lifting mechanism 5 is arranged on the oil pipeline 1, the lifting mechanism 5 comprises a third fixed rod 51, a fifth sliding frame 52, a sixth return spring 53, a wedge plate 54, a seventh return spring 55, a pressure sensor 56 and an alarm 57, the top of the oil pipeline 1 is symmetrically connected with the third fixed rod 51, the fifth sliding frame 52 is connected with the third fixed rod 51 in a sliding manner, the fifth sliding frame 52 is used for driving the sliding plate 44 and devices on the sliding plate 44 to move upwards, the fifth sliding frame 52 is matched with the sliding plate 44 in a sliding manner, the fifth sliding frame 52 is matched with the oil pipeline 1 in a sliding manner, the fifth sliding frame 52 is in contact with the first fixed plate 23, a sixth return spring 53 is connected between the fifth sliding frame 52 and the oil pipeline 1, a wedge plate 54 is connected with the sliding plate 44 in a sliding manner, a seventh return spring 55 is connected between the wedge plate 54 and the fifth sliding frame 52, the seventh return spring 55 is used for driving the wedge plate 54 to move upwards, the pressure sensor 56 is connected with the fifth sliding frame 52, and the pressure sensor 56 is used for feeding back the pressure sensor 57 is connected with the alarm 57.
The oil pipeline oil conveying device is characterized by further comprising a detection mechanism 6, wherein the detection mechanism 6 is arranged on the oil pipeline 1, the detection mechanism 6 comprises a fixed ring 61, a second sliding rod 62, a sliding ring 63, an eighth reset spring 64 and a fixed strip 65, the fixed ring 61 is connected to the inner wall of the oil pipeline 1, a drill rod 22 penetrates through the fixed ring 61, the second sliding rod 62 is symmetrically and slidingly connected to the fixed ring 61, the sliding ring 63 is jointly connected between the two second sliding rods 62, the drill rod 22 penetrates through the sliding ring 63, the eighth reset spring 64 is symmetrically connected between the sliding ring 63 and the fixed ring 61, the eighth reset spring 64 is used for driving the sliding ring 63 and a device on the sliding ring to reset, the top end of the second sliding rod 62 is connected with the fixed strip 65, the fixed strip 65 is used for pushing the fourth sliding frame 45 to move upwards, the fixed strip 65 contacts with the fourth sliding frame 45, the fixed strip 65 is slidingly matched with the fourth fixed frame 41, and the fixed strip 65 is slidingly matched with the sliding plate 44.
When other lifting equipment drives the drill rod 22 and the upper device thereof to move upwards, the compressed sixth return spring 53 is restored, so that the fifth sliding frame 52 drives the sliding plate 44 and the upper device thereof to move upwards, the sliding plate 44 does not block the oil pipeline 1 any more, the air pressure in the oil pipeline 1 is released through the oil pipeline 1, explosion can be prevented, and when other lifting equipment drives the drill rod 22 and the upper device thereof to reset, the fifth sliding frame 52 drives the sliding plate 44 and the upper device thereof to reset, and the sixth return spring 53 is compressed and reset.
When the air pressure inside the oil delivery pipeline 1 is too high and the sliding plate 44 is in a closed state, the air pressure inside the oil delivery pipeline 1 pushes the sliding plate 44 and devices thereon to move in a direction away from each other, the fourth return spring 43 is compressed along with the sliding plate, the wedge plate 54 is separated from the sliding plate 44 in the process, the sliding plate 44 is not limited by the wedge plate 54 any more, the seventh return spring 55 in a compressed state is reset along with the sliding plate, the wedge plate 54 moves upwards, the wedge plate 54 is contacted with the pressure sensor 56, the pressure sensor 56 feeds back pressure information, and an alarm 57 alarms, at the moment, the electric push rod 32 is stretched, the first slide plate 33 and devices thereon are pushed to move in a direction approaching to the oil delivery pipeline 1, the third return spring 311 in the upper side is compressed along with the sliding plate 38 to encase the drill rod 22, the inside of the oil delivery pipeline 1 is in a sealed state, and blowout inside the oil delivery pipeline 1 can be prevented from being automatically sealed.
When the air pressure in the oil pipeline 1 reaches a certain value, the air pressure in the oil pipeline 1 can push the sliding ring 63 and the device thereon to move upwards, the eighth return spring 64 can be compressed along with the sliding ring, the fixing strip 65 can push the fourth sliding frame 45 to move upwards, and the fifth return spring 46 can be compressed along with the sliding ring, so that the fourth sliding frame 45 can not block the sliding plate 44 any more, the air pressure in the oil pipeline 1 can be released, explosion caused by overlarge pressure in the oil pipeline 1 can be prevented, injury to personnel due to explosion can be avoided, and the effect of automatically releasing the air pressure in the oil pipeline 1 to prevent explosion can be achieved.
When the air pressure in the oil delivery pipeline 1 is released, the sliding plate 44 and the upper device thereof are reset under the reset action of the fourth reset spring 43, the sliding plate 44 pushes the wedge plate 54 to reset, the seventh reset spring 55 is compressed, the wedge plate 54 is separated from the pressure sensor 56 in the process, the electric push rod 32 is contracted, the first sliding frame 33 and the upper device thereof are reset, the first gate plate 38 is reset under the reset action of the third reset spring 311 positioned above, the sliding ring 63 and the upper device thereof are reset under the reset action of the eighth reset spring 64, and the fourth sliding frame 45 is reset under the reset action of the fifth reset spring 46.
When the drill rod 22 used in the oil well is of different diameters, the nut 21 is manually taken out by a person through rotation, the drill rod 22 is taken out, then the drill rod 22 of different diameters is replaced according to the requirement, the nut 21 of the corresponding size is replaced on the oil pipeline 1, when the drill rod 22 is large, the drill rod 22 can squeeze the first fixing frame 26 and the device on the first fixing frame 26 to move, the first reset spring 27 is compressed, the second fixing frame 28 does not limit the second sliding frame 35 any more, the second reset spring 36 in a stretched state is reset, the second sliding frame 35 moves downwards, when the air pressure in the oil pipeline 1 is too large, the second sliding frame 35 pushes the second flashboard 39 to move towards the direction of approaching each other, the third reset spring 311 below is compressed along with the movement, and the operation is repeated, so that the well blowout prevention effect can be achieved, and the device can be suitable for the drill rod 22 of different specifications.
When the drill rod 22 with smaller diameter is replaced, the first fixing frame 26 and the device thereon are reset under the reset action of the first reset spring 27, the second fixing frame 28 pushes the second sliding frame 35 to reset, and the second reset spring 36 is stretched.
The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (1)
1. The blowout preventer is characterized by comprising an oil pipeline (1), a replacement mechanism (2) and a first blowout prevention mechanism (3), wherein a threaded hole is formed in the oil pipeline (1), the replacement mechanism (2) is arranged on the oil pipeline (1), and the first blowout prevention mechanism (3) is arranged on the oil pipeline (1);
the replacing mechanism (2) comprises a nut (21), a drill rod (22), a first fixing plate (23), a second fixing plate (24), a first sliding rod (25), a first fixing frame (26), a first reset spring (27) and a second fixing frame (28), wherein the nut (21) is connected to the oil pipeline (1) in a threaded fit mode, the drill rod (22) is connected to other lifting devices, the drill rod (22) is in sliding fit with the nut (21), the first fixing plate (23) is fixedly connected to the drill rod (22), two second fixing plates (24) are connected to the top of the oil pipeline (1), the first sliding rod (25) is connected to the second fixing plate (24) in a sliding mode, the first fixing frame (26) is connected between the two first sliding rods (25), the first fixing frame (26) is in contact with the drill rod (22), the first reset spring (27) is connected between the second fixing plate (24) and the first fixing frame (26), and the second fixing frame (28) is symmetrically connected to the first fixing frame (26).
The first blowout prevention mechanism (3) comprises a third fixed frame (31), an electric push rod (32), a first sliding frame (33), a first fixed rod (34), a second sliding frame (35), a second return spring (36), a second fixed rod (37), a first gate plate (38), a second gate plate (39) and a third return spring (311), wherein one side of the oil pipeline (1) is connected with the third fixed frame (31), the electric push rod (32) is mounted on the third fixed frame (31), one end of the electric push rod (32) is connected with the first sliding frame (33), the first sliding frame (33) is connected with the first fixed rod (34) in a sliding manner, the second sliding frame (35) is contacted with the second fixed frame (28), two pairs of second fixed rods (37) are symmetrically connected on the oil pipeline (1), the first sliding frame (38) is connected with the second gate plate (38) in a sliding manner, the other pair of second fixing rods (37) is connected with a second flashboard (39) in a sliding manner, the second flashboard (39) is connected with the oil pipeline (1) in a sliding manner, the first flashboard (38) at the same side is contacted with the second flashboard (39), a third reset spring (311) is connected between the first flashboard (38) and the oil pipeline (1), and a third reset spring (311) is also connected between the second flashboard (39) and the oil pipeline (1);
the oil pipeline oil spraying device comprises an oil pipeline (1), and is characterized by further comprising a second blowout prevention mechanism (4), wherein the second blowout prevention mechanism (4) is arranged on the oil pipeline (1), the second blowout prevention mechanism (4) comprises a fourth fixing frame (41), a third sliding frame (42), a fourth reset spring (43), a sliding plate (44), a fourth sliding frame (45) and a fifth reset spring (46), the inner wall of the oil pipeline (1) is symmetrically connected with the fourth fixing frame (41), the third sliding frame (42) is connected onto the fourth fixing frame (41) in a sliding manner, the fourth reset spring (43) is connected between the third sliding frame (42) and the fourth fixing frame (41), the sliding plate (44) is in sliding connection with the oil pipeline (1), the fourth sliding frame (45) is connected onto the sliding plate (44), and the fifth reset spring (46) is connected onto the sliding plate (44);
the device also comprises a lifting mechanism (5), the lifting mechanism (5) is arranged on the oil conveying pipeline (1), the lifting mechanism (5) comprises a third fixed rod (51), a fifth sliding frame (52), a sixth sliding spring (53), a wedge plate (54), a seventh sliding spring (55), a pressure sensor (56) and an alarm (57), the top of the oil conveying pipeline (1) is symmetrically connected with the third fixed rod (51), the fifth sliding frame (52) is connected with the third fixed rod (51) in a sliding manner, the fifth sliding frame (52) is matched with the sliding plate (44) in a sliding manner, the fifth sliding frame (52) is matched with the oil conveying pipeline (1) in a sliding manner, the fifth sliding frame (52) is contacted with the first fixed plate (23), the sixth sliding spring (53) is connected between the fifth sliding frame (52) and the oil conveying pipeline (1), the wedge plate (54) is connected with the sliding plate (44) in a sliding manner, the seventh sliding spring (52) is connected between the wedge plate (54) and the fifth sliding frame (52), the fifth sliding frame (52) is connected with the pressure sensor (56) in a sliding manner, the alarm (57) is connected with the pressure sensor (56);
the oil conveying device is characterized by further comprising a detection mechanism (6), wherein the detection mechanism (6) is arranged on the oil conveying pipeline (1), the detection mechanism (6) comprises a fixed ring (61), a second sliding rod (62), a sliding ring (63), an eighth sliding spring (64) and a fixed strip (65), the fixed ring (61) is connected to the inner wall of the oil conveying pipeline (1), a drill rod (22) penetrates through the fixed ring (61), the second sliding rod (62) is symmetrically and slidingly connected to the fixed ring (61), the sliding ring (63) is jointly connected between the two second sliding rods (62), the drill rod (22) penetrates through the sliding ring (63), the eighth sliding spring (64) is symmetrically connected between the sliding ring (63) and the fixed ring (61), the top end of the second sliding rod (62) is connected with the fixed strip (65), the fixed strip (65) is in contact with the fourth sliding frame (45), the fixed strip (65) is slidingly matched with the fourth fixed frame (41), and the fixed strip (65) is slidingly matched with the sliding plate (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110871782.6A CN113389517B (en) | 2021-07-30 | 2021-07-30 | Blowout preventer applicable to multi-specification drill pipes and having pressure relief function for oil exploitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110871782.6A CN113389517B (en) | 2021-07-30 | 2021-07-30 | Blowout preventer applicable to multi-specification drill pipes and having pressure relief function for oil exploitation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113389517A CN113389517A (en) | 2021-09-14 |
| CN113389517B true CN113389517B (en) | 2023-08-25 |
Family
ID=77622384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110871782.6A Active CN113389517B (en) | 2021-07-30 | 2021-07-30 | Blowout preventer applicable to multi-specification drill pipes and having pressure relief function for oil exploitation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113389517B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4003430A (en) * | 1974-01-02 | 1977-01-18 | Carnahan David A | Apparatus for the replacement of seals in a well ram type blow out preventer |
| US4676563A (en) * | 1985-05-06 | 1987-06-30 | Innotech Energy Corporation | Apparatus for coupling multi-conduit drill pipes |
| CN103206185A (en) * | 2013-04-24 | 2013-07-17 | 衡水亿德橡塑制品有限公司 | Blowout preventer ram |
| CN208502718U (en) * | 2018-04-28 | 2019-02-15 | 江苏亿德隆石油机械有限公司 | A kind of reducing blowout preventer flashboard |
| CN208718611U (en) * | 2018-08-14 | 2019-04-09 | 盐城金龙达机械制造有限公司 | A kind of multifunction energy storage preventer |
-
2021
- 2021-07-30 CN CN202110871782.6A patent/CN113389517B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4003430A (en) * | 1974-01-02 | 1977-01-18 | Carnahan David A | Apparatus for the replacement of seals in a well ram type blow out preventer |
| US4676563A (en) * | 1985-05-06 | 1987-06-30 | Innotech Energy Corporation | Apparatus for coupling multi-conduit drill pipes |
| CN103206185A (en) * | 2013-04-24 | 2013-07-17 | 衡水亿德橡塑制品有限公司 | Blowout preventer ram |
| CN208502718U (en) * | 2018-04-28 | 2019-02-15 | 江苏亿德隆石油机械有限公司 | A kind of reducing blowout preventer flashboard |
| CN208718611U (en) * | 2018-08-14 | 2019-04-09 | 盐城金龙达机械制造有限公司 | A kind of multifunction energy storage preventer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113389517A (en) | 2021-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4162704A (en) | Pressure control device | |
| WO2009158066A2 (en) | Resettable antiextrusion backup system and method | |
| CA2709759A1 (en) | Removable hydraulic-set packer | |
| CA2831586A1 (en) | Production string activated wellbore sealing apparatus and method for sealing a wellbore using a production string | |
| CN113389517B (en) | Blowout preventer applicable to multi-specification drill pipes and having pressure relief function for oil exploitation | |
| CN108489722B (en) | Multifunctional load test device of blowout preventer | |
| WO2021096490A1 (en) | Hydraulic workover unit for live well workover | |
| US8002032B2 (en) | Hydraulic overshot with removable setting and testing core | |
| CA2879251C (en) | Liner hanger top packer having locking ball socket | |
| CN112814610B (en) | Expanding packer | |
| CN201738915U (en) | Sealing and suppressing device of well sealing device for oil field | |
| CN112049601B (en) | Wellbore packer device at near wellhead of oil and gas well and application method thereof | |
| WO2017091589A1 (en) | Mechanical support ring for elastomer seal | |
| CN203321365U (en) | Controllable sucker rod tripping device | |
| CN107476789B (en) | Injection and production integrated pump and method of linkage packer | |
| CN212428698U (en) | Shaft packing device near wellhead of oil and gas well | |
| CN202510087U (en) | Retrievable subsurface safety valve | |
| CN206360677U (en) | A kind of downhole blow-out preventer | |
| CN112891784A (en) | Inert gas fire extinguishing device for skid-mounted refueling device | |
| CN207437001U (en) | A kind of Trajectory of Horizontal Well formula Tubing Packer | |
| CN218444769U (en) | Pressure resistance testing device for drainage pipeline | |
| CN102200001B (en) | Bidirectional anchor packer | |
| US2660247A (en) | Retrievable well packer | |
| CN212898387U (en) | Prevent seat sealing tool and well completion tubular column of seat sealing in advance | |
| CN206530313U (en) | A kind of double Tubing Packers of washing well gradually deblocking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230721 Address after: Room B103, Entrepreneurship Center, Honggang District, Daqing City, Heilongjiang Province Applicant after: Daqing Chaoming Underground Operation Technology Service Co.,Ltd. Address before: 200000 Room 201, building 5, No. 3 Lane 2550, Jiangyang South Road, Baoshan District, Shanghai Applicant before: Luo Hailong |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |