A pressure gauge blowout preventer for oil exploitation

Abstract

The application belongs to the technical field of blowout preventers, and particularly relates to a pressure measuring blowout preventer for oil exploitation, which comprises a blowout preventer body, the bottom of the blowout preventer body is provided with a base, the outer wall of the blowout preventer body is symmetrically provided with a driving assembly, the inside of the blowout preventer body is provided with a cavity, the inside of the cavity is provided with a first shear plate and a second shear plate, the bottom of the first shear plate is fixedly provided with a square frame, and the inside of the square frame is provided with a mounting groove. The pressure measuring blowout preventer for oil exploitation is convenient for detecting the pressure inside a well by the setting of a flow-through groove and a pressure gauge. When the pressure inside the well is detected, the space where the flow-through groove is located is not sealed, the pressure inside the well flows into the inside of the flow-through groove, the pressure enters the pressure measuring joint of the pressure gauge, and then the pressure inside the well is measured, so that workers can know the pressure condition inside the well in real time.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of blowout preventers, and particularly relates to a pressure measuring blowout preventer for oil exploitation. BACKGROUND

[0002] The main function of the pressure measuring blowout preventer for oil exploitation is to prevent blowout in the process of oil exploitation. If blowout occurs in the process of oil testing, well repairing and well completion, great harm will be caused to the surrounding environment and personal safety. The full sealing and semi-sealing functions of the blowout preventer can effectively prevent blowout and ensure the safety of the process of oil exploitation. The blowout preventer has the characteristics of high pressure resistance and can bear high pressure, rapidly close the wellhead in emergency, reduce the occurrence of blowout accidents and avoid the expansion of accidents, mainly in preventing blowout, high pressure sealing, convenient operation, multiple functions and high reliability, and provides important safety protection for oil exploitation.

[0003] A composite annular ram blowout preventer is disclosed in Chinese Patent No. CN104110230A, which comprises an annular blowout preventer assembly, a main body, a ram blowout preventer driving device, an annular injection device and a transition flange. The five parts are combined together to reduce the height of the wellhead, thereby reducing the waste of resources, improving the on-site construction environment and eliminating certain safety hazards.

[0004] The existing composite annular ram blowout preventer mainly considers reducing the height of the wellhead during use, thereby reducing the waste of resources, but does not consider the problem of detecting the internal pressure of the well after sealing the well. Other equipment is needed to detect the internal pressure of the well, which reduces the work efficiency.

[0005] Therefore, the application provides a pressure measuring blowout preventer for oil exploitation. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve the problem of detecting the internal pressure of the well, the application provides a pressure measuring blowout preventer for oil exploitation.

[0007] The technical scheme adopted by the application to solve the technical problem is that the pressure measuring blowout preventer for oil exploitation comprises a blowout preventer body, a base is arranged at the bottom of the blowout preventer body, drive assemblies are symmetrically arranged on the outer wall of the blowout preventer body, a cavity is arranged in the blowout preventer body, a first shear plate and a second shear plate are arranged in the cavity, and the first shear plate and the second shear plate are arranged opposite to each other.

[0008] The bottom of the first shearing plate is fixedly provided with a square frame, the inside of the square frame is provided with a mounting groove, the inside of the mounting groove is provided with a flow-through groove, the inside of the square frame is provided with a sealing assembly, the sealing assembly is located on one side of the mounting groove, the output end of the flow-through groove is connected with a pipeline, one end of the pipeline is provided with a connector;

[0009] The connector is connected with a hose, the outer wall of the blowout preventer body is fixedly connected with a pressure gauge, and one end of the hose is connected with a pressure measuring connector of the pressure gauge.

[0010] Preferably, the driving assembly comprises a support cylinder and a hydraulic rod, the support cylinder is fixedly installed on the blowout preventer body, and there are two groups of support cylinders, the hydraulic rod is fixedly installed on the support cylinder, and the output ends of the two groups of symmetrically arranged hydraulic rods are fixedly connected with the outer walls of the first shearing plate and the second shearing plate respectively, and the top of the blowout preventer body is provided with a penetrating head.

[0011] Preferably, the sealing assembly comprises a receiving groove, an extension rod, a connecting block and a sealing plate, the receiving groove is fixedly arranged in the inside of the square frame, the extension rod is fixedly installed in the inside of the receiving groove, the connecting block is fixedly installed at one end of the extension rod, the sealing plate is fixedly connected with the connecting block, one end of the sealing plate penetrates into the inside of the mounting groove, a first battery is arranged in the inside of the first shearing plate, and the first battery is electrically connected with the extension rod.

[0012] Preferably, the inside of the pressure gauge is provided with a pointer, one end of the pointer is connected with an insulating block, and the insulating block is fixedly connected with a conductive plate.

[0013] Preferably, the inside of the pressure gauge is sequentially provided with a mounting plate, the front surface of the blowout preventer body is provided with a second battery, the mounting plate is provided with a first contact piece, the first contact piece is electrically connected with the second battery, the mounting plate is provided with a second contact piece, and the second contact piece is symmetrically arranged with the first contact piece.

[0014] Preferably, the front surface of the blowout preventer body is provided with a display panel, the display panel is provided with a display lamp corresponding to the second contact piece, and the display lamp is electrically connected with the second contact piece.

[0015] Preferably, the top of the first shearing plate is provided with a square plate, and the top of the square plate is provided with a sealing groove.

[0016] Preferably, the inside of the second shearing plate is provided with a sliding groove, the inside of the sliding groove is provided with a driving block, the outer wall of the driving block is fixedly connected with a driving rod, the inside of the sliding groove is provided with a limiting ring, one end of the driving rod penetrates into the inside of the limiting ring, the outer wall of the sliding groove is fixedly connected with a cylinder, one end of the driving rod penetrates into the inside of the cylinder, a reset spring is fixedly installed in the inside of the sliding groove, and one end of the reset spring is fixedly connected with the outer wall of the driving block.

[0017] Preferably, the inside of the cylinder is movably provided with a piston, one end of the driving rod is fixedly connected with the outer wall of the piston, one end of the cylinder is provided with a flow divider, and the flow divider is provided with a conveying pipe.

[0018] Preferably, the top of the second cutting plate is provided with a sealing block, the bottom of the sealing block is provided with an inclined groove, the size of the inclined groove is equal to the size of the cutting part of the first cutting plate, the inside of the sealing block is provided with a strip-shaped groove, the inside of the strip-shaped groove is provided with a strip-shaped plate, two groups of square grooves are fixedly installed in the inside of the sealing block, the inside of the square groove is provided with a sliding block, the size of the sliding block is equal to the size of the inside of the square groove, a driving shaft is fixedly connected with the outer wall of the sliding block, and one end of the driving shaft is fixedly connected with the outer wall of the strip-shaped plate.

[0019] The beneficial effects of the present application are as follows:

[0020] 1. The pressure measuring blowout preventer for oil exploitation, through the setting of the flow-through groove and the pressure gauge, the pressure inside the drilling well can be detected, when the pressure inside the drilling well is detected, the sealing plate is moved by the connecting block through the work of the telescopic rod, after the sealing plate moves into the inside of the storage groove, the space where the flow-through groove is located is no longer sealed, the pressure inside the drilling well flows into the inside of the flow-through groove, through the cooperation of the pipeline, the connecting head and the hose, the pressure enters the pressure measuring joint of the pressure gauge, thereby the pressure inside the drilling well can be measured, the staff can know the pressure condition inside the drilling well in real time, and then the staff can take measures according to the pressure, so that the purpose of measuring the pressure inside the drilling well is achieved.

[0021] 2. The pressure measuring blowout preventer for oil exploitation, through the display lamp, the staff can watch the detected pressure, the distance between the first contact piece and the second contact piece is equal to the size of the conductive plate, after the conductive plate moves between the first contact piece and the second contact piece, the current in the second battery flows through the cooperation between the first contact piece, the second contact piece and the conductive plate, the current flows into the inside of the display lamp, so that the display lamp is lighted, by watching the working state of the display lamp at different positions, the staff can know the pressure inside the drilling well, without approaching the pressure gauge, the staff can know the pressure condition, and the convenience is improved.

[0022] 3. The application discloses a pressure measuring blowout preventer for oil exploitation, which facilitates to improve the sealing performance of the blowout preventer by the sealing groove and the strip-shaped plate; when the first shear plate and the second shear plate are in contact to seal the inside of the blowout preventer body, the first shear plate pushes the driving block to move, and when the driving block slides, the driving rod pushes the piston to slide in the cylinder, so that the air in the cylinder is compressed; after the compressed air flows into the inside of the flow divider, the air flows into the inside of the conveying pipe and pushes the sliding block to move; when the sliding block moves, the driving shaft pushes the strip-shaped plate to move into the inside of the sealing groove, so that the sealing performance of the contact part of the first shear plate and the second shear plate is improved, and the sealing performance of the pressure measuring blowout preventer for oil exploitation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] The application will be further described below in combination with the drawings.

[0024] Figure 1 is a perspective view of the application;

[0025] Figure 2 is a sectional structure view of the application;

[0026] Figure 3 is a structure schematic view of the first shear plate and the second shear plate in the application;

[0027] Figure 4 is a structure schematic view of the flow groove in the application;

[0028] Figure 5 is a structure schematic view of the square frame in the application;

[0029] Figure 6 is a structure schematic view of the flow groove and the pipeline connection in the application;

[0030] Figure 7 is a structure schematic view of the pressure gauge in the application;

[0031] Figure 8 is a structure schematic view of the sliding groove in the application;

[0032] Figure 9 is an enlarged schematic view of the A structure in the application Figure 3

[0033] ​In the figure: 1, blowout preventer body; 2, base; 3, through head; 4, support cylinder; 5, hydraulic rod; 6, cavity; 7, No. 1 shear plate; 8, No. 2 shear plate; 9, square frame; 10, storage groove; 11, telescopic rod; 12, connecting block; 13, sealing plate; 14, mounting groove; 15, flow-through groove; 16, pipeline; 17, connecting head; 18, hose; 19, pressure gauge; 20, pointer; 21, No. 1 battery; 22, No. 2 battery; 23, insulating block; 24, conductive plate; 25, mounting plate; 26, No. 1 contact; 27, No. 2 contact; 28, display plate; 29, display lamp; 30, square plate; 31, sealing groove; 32, sliding groove; 33, driving block; 34, driving rod; 35, limiting ring; 36, cylinder; 37, piston; 38, shunt head; 39, delivery pipe; 40, return spring; 41, sealing block; 42, strip-shaped groove; 43, strip-shaped plate; 44, square groove; 45, sliding block; 46, driving shaft. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, purposes and effects realized by the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0035] As Figures 1-7As shown, the petroleum exploitation pressure measuring blowout preventer comprises a blowout preventer body 1, a base 2 arranged at the bottom of the blowout preventer body 1, drive assemblies symmetrically arranged on the outer wall of the blowout preventer body 1, a cavity 6 arranged in the blowout preventer body 1, a first shear plate 7 and a second shear plate 8 arranged in the cavity 6, the first shear plate 7 and the second shear plate 8 being oppositely arranged, a square frame 9 fixedly installed at the bottom of the first shear plate 7, an installation groove 14 arranged in the square frame 9, a flow-through groove 15 arranged in the installation groove 14, a sealing assembly arranged in the square frame 9 and located at one side of the installation groove 14, a pipeline 16 connected to the output end of the flow-through groove 15, a connecting head 17 installed at one end of the pipeline 16, a hose 18 connected to the connecting head 17, a pressure gauge 19 fixedly connected to the outer wall of the blowout preventer body 1, and one end of the hose 18 connected to a pressure measuring connector of the pressure gauge 19. When the petroleum exploitation pressure measuring blowout preventer is used, the blowout preventer body 1 is fixedly installed at the well mouth through the base 2, the drill rod passes through the blowout preventer body 1 and enters the inside of the well, when blowout occurs in the well, two groups of drive assemblies work to push the first shear plate 7 and the second shear plate 8 to move oppositely, when the first shear plate 7 and the second shear plate 8 contact the outer wall of the drill rod, the drill rod is cut off, after the first shear plate 7 and the second shear plate 8 cut off the drill rod, the two plates are in close contact to seal the cavity 6, thereby sealing the well mouth to prevent blowout and improve safety, when the pressure in the inside of the well is detected, the sealing assembly works to stop sealing the flow-through groove 15, the pressure in the inside of the well flows into the inside of the flow-through groove 15, the flow-through groove 15 cooperates with the pipeline 16, the connecting head 17 and the hose 18 to make the pressure enter the pressure measuring connector of the pressure gauge 19, thereby facilitating pressure measurement in the inside of the well, facilitating the staff to know the pressure condition in the inside of the well in real time, thereby facilitating the staff to take measures according to the pressure to achieve the purpose of measuring the pressure in the inside of the well.

[0036] As shown in Figure 1 and Figure 3 , the drive assembly comprises a support cylinder 4 and a hydraulic rod 5, the support cylinder 4 is fixedly installed on the blowout preventer body 1 and there are two groups of support cylinders 4, the hydraulic rod 5 is fixedly installed on the support cylinder 4, and the output ends of the two groups of symmetrically arranged hydraulic rods 5 are fixedly connected to the outer walls of the first shear plate 7 and the second shear plate 8, respectively, and a through head 3 is installed at the top of the blowout preventer body 1, when the drive assembly works, the support cylinder 4 provides an installation space for the hydraulic rod 5, there are two groups of hydraulic rods 5, when the two groups of hydraulic rods 5 work, they respectively push the first shear plate 7 and the second shear plate 8 to move, and the through head 3 facilitates the drill rod to enter the inside of the blowout preventer body 1.

[0037] As shown in Figure 5 and Figure 6As shown, the sealing assembly includes a receiving groove 10, a telescopic rod 11, a connecting block 12 and a sealing plate 13, the receiving groove 10 is fixedly arranged in the interior of the square frame 9, the telescopic rod 11 is fixedly installed in the interior of the receiving groove 10, the connecting block 12 is fixedly installed at one end of the telescopic rod 11, the sealing plate 13 is fixedly connected with the connecting block 12, and one end of the sealing plate 13 is arranged in the interior of the mounting groove 14, the interior of the first shearing plate 7 is provided with a first battery 21, and the first battery 21 is electrically connected with the telescopic rod 11, when the sealing plate 13 is arranged in the interior of the mounting groove 14, the space where the flow-through groove 15 is located is sealed, when the pressure inside the well needs to be detected, the telescopic rod 11 is an electric push rod, the first battery 21 provides energy for the telescopic rod 11, the outside can remotely control the telescopic rod 11 to work, the telescopic rod 11 works through the connecting block 12 to pull the sealing plate 13 to move, after the sealing plate 13 moves into the interior of the receiving groove 10, the space where the flow-through groove 15 is located is no longer sealed, and the pressure inside the well flows into the interior of the flow-through groove 15.

[0038] As shown in Figure 7 As shown, the interior of the pressure gauge 19 is provided with a pointer 20, one end of the pointer 20 is connected with an insulating block 23, the insulating block 23 is fixedly connected with a conductive plate 24, the pressure gauge 19 detects the pressure to make the pointer 20 rotate, and the pressure condition is facilitated to be understood through the dial plate arranged in the interior when the pointer 20 rotates, and the pointer 20 is limitingly installed on the conductive plate 24 through the insulating block 23.

[0039] As shown in Figure 7 As shown, the interior of the pressure gauge 19 is provided with an installation plate 25 in sequence, the front face of the blowout preventer body 1 is provided with a second battery 22, the installation plate 25 is provided with a first contact piece 26, and the first contact piece 26 is electrically connected with the second battery 22, the installation plate 25 is provided with a second contact piece 27, and the second contact piece 27 is symmetrically arranged with the first contact piece 26, the first contact piece 26 and the second contact piece 27 are arranged in the interior of the pressure gauge 19 through the installation plate 25, the spacing between the first contact piece 26 and the second contact piece 27 is equal to the size of the conductive plate 24, after the conductive plate 24 moves to between the first contact piece 26 and the second contact piece 27, the current in the interior of the second battery 22 flows through the cooperation between the first contact piece 26, the second contact piece 27 and the conductive plate 24, and the current flows into the interior of the display lamp 29 to make the display lamp 29 light up.

[0040] As shown in Figure 1 and Figure 2As shown, the front of the blowout preventer body 1 is provided with a display panel 28, the display panel 28 is provided with a display lamp 29 corresponding to the second contact 27, and the display lamp 29 is electrically connected with the second contact 27. The top of the first shear plate 7 is provided with a square plate 30, and the top of the square plate 30 is provided with a sealing groove 31. The display panel 28 provides mounting space for the display lamp 29. After the current flowing in the second battery 22 flows into the inside of the display lamp 29, the display lamp 29 is lit. By observing the working state of the display lamp 29 at different positions, the worker can understand the pressure inside the well, and can understand the pressure condition without approaching the pressure gauge 19, thereby improving the convenience.

[0041] As shown in the figure, Figure 8 The inside of the second shear plate 8 is provided with a sliding groove 32, the inside of the sliding groove 32 is provided with a driving block 33, the outer wall of the driving block 33 is fixedly connected with a driving rod 34, the inside of the sliding groove 32 is provided with a limiting ring 35, and one end of the driving rod 34 penetrates the inside of the limiting ring 35. The outer wall of the sliding groove 32 is fixedly connected with a cylinder 36, and one end of the driving rod 34 penetrates the inside of the cylinder 36. The inside of the sliding groove 32 is fixedly installed with a reset spring 40, and one end of the reset spring 40 is fixedly connected with the outer wall of the driving block 33. The second shear plate 8 provides mounting space for the sliding groove 32. The driving block 33 is convenient for stable sliding position in the inside of the sliding groove 32. The driving block 33 will push the position of the driving rod 34 to move when sliding. The limiting ring 35 limits the position of the driving rod 34 to avoid shaking when the driving rod 34 slides. The piston 37 will slide in the cylinder 36 when the driving rod 34 moves. The reset spring 40 is convenient for resetting the driving block 33.

[0042] As shown in the figure, Figure 8 The inside of the cylinder 36 is movably provided with a piston 37, and one end of the driving rod 34 is fixedly connected with the outer wall of the piston 37. One end of the cylinder 36 is provided with a shunt head 38, and the shunt head 38 is provided with a conveying pipe 39. The piston 37 will compress the air in the inside of the cylinder 36. After the compressed air flows into the inside of the shunt head 38, it will flow into the inside of the conveying pipe 39.

[0043] As shown in the figure, Figure 3 And Figure 9As shown, the top of the second cutting plate 8 is provided with a sealing block 41, and the bottom of the sealing block 41 is provided with an inclined groove with a size equal to the cutting size of the first cutting plate 7, the inside of the sealing block 41 is provided with a strip-shaped groove 42, the inside of the strip-shaped groove 42 is provided with a strip-shaped plate 43, the inside of the sealing block 41 is fixedly installed with two groups of square grooves 44, the inside of the square groove 44 is provided with a sliding block 45, and the size of the sliding block 45 is equal to the size of the inside of the square groove 44, the outer wall of the sliding block 45 is fixedly connected with a driving shaft 46, and one end of the driving shaft 46 is fixedly connected with the outer wall of the strip-shaped plate 43, after the first cutting plate 7 and the second cutting plate 8 cut off the drill rod, the contact of the first cutting plate 7 and the second cutting plate 8 will seal the cavity 6, thereby avoiding the occurrence of blowout phenomenon, when the first cutting plate 7 and the second cutting plate 8 contact to seal the inside of the blowout preventer body 1, the position of the first cutting plate 7 is higher than that of the second cutting plate 8, when the two contact, the first cutting plate 7 will push the driving block 33 to move, when the driving block 33 slides, it will push the driving rod 34 to move, when the driving rod 34 moves, it will push the piston 37 to slide in the cylinder 36, the piston 37 will compress the air in the cylinder 36, after the compressed air flows into the inside of the flow divider 38, it will flow into the inside of the delivery pipe 39 respectively, after the first cutting plate 7 moves and contacts with the inclined surface at the bottom of the sealing block 41, the square plate 30 will also contact with the outer wall of the sealing block 41, at the same time, the compressed air will enter into the inside of the square groove 44 through the delivery pipe 39, push the sliding block 45 to move, when the sliding block 45 moves, it will push the strip-shaped plate 43 to move into the inside of the sealing groove 31 through the driving shaft 46, thereby the sealing property of the contact part of the first cutting plate 7 and the second cutting plate 8 can be improved, the purpose of improving the sealing property of the pressure measuring blowout preventer for oil exploitation is achieved.

[0044] Working principle: first, the pressure gauge blowout preventer is used in oil exploitation, through the base 2, the blowout preventer body 1 is fixed and installed at the wellhead, the drill pipe will pass through the blowout preventer body 1 into the inside of the drilling, when the well blowout phenomenon appears, two groups of driving assembly work push one cutting plate 7 and two cutting plate 8 opposite movement, when one cutting plate 7 and two cutting plate 8 contact the outer wall of drill pipe, it will cut off the drill pipe, after one cutting plate 7 and two cutting plate 8 cut off the drill pipe, two will seal the cavity 6, in turn, seal the wellhead, prevent blowout, improve safety, when detecting the pressure inside the drilling, the sealing plate 13 is arranged in the installation groove 14, it will seal the space where the flow channel 15 is located, when detecting the pressure inside the drilling, the telescopic rod 11 is an electric push rod, the first battery 21 provides energy for the telescopic rod 11, the outside can remotely control the telescopic rod 11, the telescopic rod 11 works through the connecting block 12, which pulls the sealing plate 13 to move, after the sealing plate 13 moves into the storage slot 10, it no longer seals the space where the flow channel 15 is located, the pressure inside the drilling flows into the flow channel 15, the flow channel 15 cooperates with the pipeline 16, the connecting head 17 and the hose 18, so that the pressure enters the pressure gauge 19, in turn, it is convenient to measure the pressure inside the drilling, so that the staff can know the pressure condition inside the drilling in real time, in turn, it is convenient to take measures according to the pressure, so as to achieve the purpose of measuring the pressure inside the drilling, the first contact piece 26 and the second contact piece 27 are arranged in the pressure gauge 19 through the mounting plate 25, the distance between the first contact piece 26 and the second contact piece 27 is equal to the size of the conductive plate 24, after the conductive plate 24 moves between the first contact piece 26 and the second contact piece 27, the current in the second battery 22 flows between the first contact piece 26, the second contact piece 27 and the conductive plate 24, so that the current flows into the display lamp 29, making the display lamp 29 light up, by observing the working state of the display lamp 29 at different positions, the staff can know the pressure inside the drilling, without approaching the pressure gauge 19 to observe the pressure, the convenience is improved, after one cutting plate 7 and two cutting plate 8 cut off the drill pipe, one cutting plate 7 and two cutting plate 8 contact will seal the cavity 6, in turn, avoid the occurrence of blowout, when one cutting plate 7 and two cutting plate 8 contact to seal the inside of the blowout preventer body 1, the position of one cutting plate 7 is higher than that of two cutting plate 8, when they contact, one cutting plate 7 will push the driving block 33 to move, when the driving block 33 slides, it will push the driving rod 34 to move, when the driving rod 34 moves, it will push the piston 37 to slide in the cylinder 36, the piston 37 will compress the air in the cylinder 36, after the compressed air flows into the flow divider 38, it will flow into the conveying pipe 39 respectively, after one cutting plate 7 moves and contacts with the inclined surface at the bottom of the sealing block 41, square plate 30 will also contact with the outer wall of sealing block 41,The compressed air is pushed into the square groove 44 through the delivery pipe 39, and pushes the sliding block 45 to move, and the sliding block 45 pushes the strip-shaped plate 43 to move into the sealing groove 31 through the driving shaft 46, thereby improving the sealing performance of the contact part of the first shear plate 7 and the second shear plate 8, and improving the sealing performance of the pressure gauge type blowout preventer for oil exploitation.

[0045] The above-mentioned front, back, left, right, top, bottom are based on the drawings in the specification Figure 1 The front of the device is defined as the front of the observer, the left of the observer is defined as the left, and the like.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application.

[0047] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A pressure ram preventer for use in oil and gas exploration, characterized in that: Including blowout preventer body (1), the bottom of the blowout preventer body (1) is provided with a base (2), the outer wall of the blowout preventer body (1) is provided with a drive assembly, the inside of the blowout preventer body (1) is provided with a cavity (6), the inside of the cavity (6) is provided with a first shear plate (7) and a second shear plate (8), and the first shear plate (7) and the second shear plate (8) are oppositely arranged; The bottom of the first shear plate (7) is fixedly installed with a square frame (9), the inside of the square frame (9) is provided with a mounting groove (14), the inside of the mounting groove (14) is provided with a flow-through groove (15), the inside of the square frame (9) is provided with a sealing assembly, and the sealing assembly is located on one side of the mounting groove (14), the output end of the flow-through groove (15) is connected with a pipeline (16), one end of the pipeline (16) is installed with a connector (17); The connector (17) is connected with a hose (18), the outer wall of the blowout preventer body (1) is fixedly connected with a pressure gauge (19), and one end of the hose (18) is connected with a pressure measuring connector of the pressure gauge (19); The drive assembly comprises a support cylinder (4) and a hydraulic rod (5), the support cylinder (4) is fixedly installed on the blowout preventer body (1), and the support cylinder (4) has two groups, the hydraulic rod (5) is fixedly installed on the support cylinder (4), and the output ends of the two groups of hydraulic rods (5) are fixedly connected with the outer walls of the first shear plate (7) and the second shear plate (8) respectively, and the top of the blowout preventer body (1) is installed with a penetrating head (3); The sealing assembly comprises a receiving groove (10), an extension rod (11), a connecting block (12) and a sealing plate (13), the receiving groove (10) is fixedly arranged in the inside of the square frame (9), the extension rod (11) is fixedly installed in the inside of the receiving groove (10), the connecting block (12) is fixedly installed at one end of the extension rod (11), the sealing plate (13) is fixedly connected with the connecting block (12), and one end of the sealing plate (13) penetrates into the inside of the mounting groove (14), a first battery (21) is arranged in the inside of the first shear plate (7), and the first battery (21) is electrically connected with the extension rod (11).

2. A ram-type blowout preventer for use in oil and gas exploration according to claim 1, characterized in that: The inside of the pressure gauge (19) is provided with a pointer (20), one end of the pointer (20) is connected with an insulating block (23), and the insulating block (23) is fixedly connected with a conductive plate (24).

3. A ram-type blowout preventer for use in oil and gas exploration according to claim 2, characterized in that: The inside of the pressure gauge (19) is sequentially provided with a mounting plate (25), the front of the blowout preventer body (1) is provided with a second battery (22), the mounting plate (25) is provided with a first contact piece (26), and the first contact piece (26) is electrically connected with the second battery (22), the mounting plate (25) is provided with a second contact piece (27), and the second contact piece (27) is symmetrically arranged with the first contact piece (26).

4. A ram-type blowout preventer for use in oil and gas exploration according to claim 3, characterized in that: The front of the blowout preventer body (1) is provided with a display plate (28), the display plate (28) is provided with a display lamp (29) corresponding to the second contact piece (27), and the display lamp (29) is electrically connected with the second contact piece (27).

5. A ram-type blowout preventer for use in oil and gas exploration according to claim 4, characterized in that: The top of the first cutting plate (7) is provided with a square plate (30), and the top of the square plate (30) is provided with a sealing groove (31).

6. A ram-type blowout preventer for use in oil and gas exploration according to claim 5, characterized in that: The inside of the second cutting plate (8) is provided with a sliding groove (32), the inside of the sliding groove (32) is provided with a driving block (33), the outer wall of the driving block (33) is fixedly connected with a driving rod (34), the inside of the sliding groove (32) is provided with a limiting ring (35), and one end of the driving rod (34) penetrates the inside of the limiting ring (35), the outer wall of the sliding groove (32) is fixedly connected with a cylinder (36), and one end of the driving rod (34) penetrates the inside of the cylinder (36), the inside of the sliding groove (32) is fixedly installed with a reset spring (40), and one end of the reset spring (40) is fixedly connected with the outer wall of the driving block (33).

7. A ram-type blowout preventer for use in oil and gas exploration according to claim 6, characterized in that: The inside of the cylinder (36) is movably provided with a piston (37), and one end of the driving rod (34) is fixedly connected with the outer wall of the piston (37), one end of the cylinder (36) is provided with a shunt head (38), and the shunt head (38) is provided with a conveying pipe (39).

8. A ram-type blowout preventer for use in oil and gas exploration according to claim 7, characterized in that: The top of the second cutting plate (8) is provided with a sealing block (41), and the bottom of the sealing block (41) is provided with an inclined groove, which is equal in size to the cutting part of the first cutting plate (7), the inside of the sealing block (41) is provided with a strip-shaped groove (42), the inside of the strip-shaped groove (42) is provided with a strip-shaped plate (43), the inside of the sealing block (41) is fixedly installed with two groups of square grooves (44), the inside of the square groove (44) is provided with a sliding block (45), and the size of the sliding block (45) is equal to the size of the inside of the square groove (44), the outer wall of the sliding block (45) is fixedly connected with a driving shaft (46), and one end of the driving shaft (46) is fixedly connected with the outer wall of the strip-shaped plate (43).

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