Blowout prevention equipment for drilling

Abstract

The utility model discloses drilling blowout prevention equipment, which relates to the technical field of drilling blowout prevention and comprises a base, a first hydraulic cylinder and a water collecting component are mounted on the base, a support plate is fixedly mounted at the output end of the first hydraulic cylinder, a second hydraulic cylinder and a drilling component are mounted on the support plate, and a first carrier plate is fixedly mounted at the output end of the second hydraulic cylinder. And a first motor is mounted on the first carrier plate. A first hydraulic cylinder is used for pushing a grinding disc to move upwards, so that the grinding disc moves to a rock stratum to-be-drilled position, a second hydraulic cylinder is used for pushing the grinding disc to be close to the rock stratum, a first motor drives the grinding disc to rotate, the rock stratum to-be-drilled position can be ground to be flat, and then the first hydraulic cylinder drags a drilling assembly to move downwards, so that a fixing plate moves to the ground flat position of the rock stratum; the rubber rings on the fixing plate are pushed by the two third hydraulic cylinders to be tightly attached to the rock stratum, and multi-stage sealing is formed between the multiple rubber rings and the rock stratum, so that water overflowing in the drilling process of the drilling assembly can be effectively blocked.

Description

Technical Field

[0001] This utility model relates to the field of blowout prevention technology in drilling, and in particular to a blowout prevention device for drilling. Background Technology

[0002] When drilling in rock formations, the drill bit may easily drill into areas with accumulated water. In this case, the water in the rock formation will splash out along the borehole, causing interference to the surrounding construction environment and easily wetting the construction equipment, causing problems such as short circuits. Therefore, when drilling in rock formations, blowout prevention equipment is used to prevent water from splashing out and protect the safety of equipment and personnel.

[0003] When drilling into rock formations, the uneven outer walls of the rock formations make it difficult for existing blowout preventers to fit tightly against the rock surface. This results in poor sealing of the blowout preventers at the drilling location. Consequently, when the drill bit reaches a water-filled area, the splashed water cannot be effectively contained, leading to poor blowout prevention and persistent water overflow. Utility Model Content

[0004] The purpose of this application is to provide a blowout preventer for drilling, in order to solve the problem mentioned in the background art that when drilling in rock formations, the uneven outer wall of the rock formation makes it difficult for existing blowout preventers to fit tightly against the rock formation, resulting in poor sealing of the blowout preventer at the drilling location. As a result, when the drill bit reaches a water-filled area, the splashed water cannot be effectively contained, leading to poor blowout prevention and the continued problem of water overflow.

[0005] To achieve the above objectives, this application provides the following technical solution: a blowout prevention device for drilling, comprising a base, on which a first hydraulic cylinder and a water collection assembly are mounted. A support plate is fixedly mounted at the output end of the first hydraulic cylinder. A second hydraulic cylinder and a drilling assembly are mounted on the support plate. A first carrier plate is fixedly mounted at the output end of the second hydraulic cylinder. A first motor is mounted on the first carrier plate. A transmission rod is fixed at the output shaft end of the first motor. The first carrier plate is sleeved on the outside of the transmission rod, and the connection between the first carrier plate and the transmission rod is rotatably connected by a bearing. A carrier seat is fixed at the other end of the transmission rod. A grinding disc is mounted on the carrier seat. A support plate is mounted on the second hydraulic cylinder. Two third hydraulic cylinders are mounted on the support plate. A fixing plate is fixedly mounted at the output ends of the two third hydraulic cylinders. Several rubber rings are fixed on the other side of the fixing plate, and the fixing plate is mounted on the drilling assembly. The drilling assembly is used for drilling into rock formations, and the water collection assembly is used for draining and transferring water accumulated in the drilling assembly.

[0006] Furthermore, the rubber rings are coaxial, and the diameter of the rubber rings increases progressively from the inside to the outside.

[0007] Furthermore, the drilling assembly includes a fourth hydraulic cylinder and a fixed cylinder. The fixed plate is fixedly sleeved on the outside of the fixed cylinder. The fourth hydraulic cylinder is mounted on a support plate. A second carrier plate is fixedly mounted on the output end of the fourth hydraulic cylinder. A second motor is mounted on the second carrier plate. A drill rod is mounted on the output shaft end of the second motor. The fixed cylinder is sleeved on the outside of the drill rod. A sealing block is sleeved on the outside of the drill rod. The joint between the drill rod and the sealing block is rotatably connected by a bearing. A sealing element is provided at the joint between the drill rod and the sealing block. A bellows is fixed on the side of the sealing block near the fixed cylinder. A connecting ring is fixed between the bellows and the fixed cylinder. Both the bellows and the connecting ring are sleeved on the outside of the drill rod.

[0008] Furthermore, a reinforcing plate is fixedly sleeved on the outside of the sealing block, and the reinforcing plate is fixedly installed on the second carrier plate.

[0009] Furthermore, the water collection assembly includes a water storage tank and a water delivery pipe. The water storage tank is mounted on a base, the top end of the water delivery pipe is connected to a fixed cylinder, and the bottom end of the water delivery pipe is inserted into the interior of the water storage tank.

[0010] Furthermore, a fixing block is fixedly fitted to the outside of the water supply pipe, and the fixing block is fixedly installed inside the water storage tank.

[0011] Furthermore, a water pump is installed on the outside of the water storage tank, the inlet of the water pump is connected to the water storage tank, and the outlet of the water pump is fixedly connected to a drain pipe.

[0012] In summary, the technical effects and advantages of this utility model are as follows:

[0013] In this invention, a first hydraulic cylinder pushes the grinding disc upwards, moving it to the drilling position in the rock stratum. A second hydraulic cylinder then pushes the grinding disc closer to the rock stratum. A first motor drives the grinding disc to rotate, smoothing the drilling position in the rock stratum. Subsequently, the first hydraulic cylinder pulls the drilling assembly downwards, moving the fixing plate to the smoothed rock stratum. Two third hydraulic cylinders push the rubber rings on the fixing plate to press them tightly against the rock stratum. Multiple rubber rings form a multi-stage seal with the rock stratum, effectively blocking water overflowing during drilling. The water is then collected and transferred by the water collection assembly, ensuring the effectiveness of blowout prevention, preventing water overflow, and protecting the safety of equipment and workers.

[0014] In this invention, a fourth hydraulic cylinder is used to pull the second carrier plate to move, and the second carrier plate drives the second motor to move, so that the drill rod driven by the second motor can approach the rock layer to realize the drilling treatment of the rock layer. The fixed cylinder, connecting ring, corrugated pipe and sealing block can effectively wrap the drill rod, so that the water overflowing from the borehole will not spray outward, but can only be discharged along the water collection component, thus ensuring the prevention of blowout in the borehole. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a three-dimensional structural diagram of a drilling blowout prevention device according to an embodiment of this application;

[0017] Figure 2 This is a diagram showing the positional relationship between the first hydraulic cylinder, the first carrier plate, the grinding disc, and the fixed plate in an embodiment of this application.

[0018] Figure 3 This is a diagram showing the connection relationship between the pallet, the third hydraulic cylinder, the fixing plate, and the rubber ring in the embodiments of this application;

[0019] Figure 4 This is a diagram showing the connection relationship between the support plate, tray, and drilling assembly in the embodiments of this application;

[0020] Figure 5 This is a partial structural schematic diagram of the drilling assembly in an embodiment of this application;

[0021] Figure 6 This is a three-dimensional structural diagram of the water collection component in the embodiments of this application.

[0022] In the diagram: 1. Base; 2. First hydraulic cylinder; 3. Support plate; 4. Second hydraulic cylinder; 5. First carrier plate; 6. First motor; 7. Transmission rod; 8. Carrier; 9. Grinding disc; 10. Support plate; 11. Third hydraulic cylinder; 12. Fixing plate; 13. Rubber ring; 14. Fourth hydraulic cylinder; 15. Fixing cylinder; 16. Second carrier plate; 17. Second motor; 18. Drill rod; 19. Sealing block; 20. Corrugated pipe; 21. Connecting ring; 22. Reinforcing plate; 23. Water tank; 24. Water supply pipe; 25. Fixing block; 26. Water pump; 27. Drainage pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example: Reference Figure 1-6The drill blowout preventer shown includes a base 1, on which a first hydraulic cylinder 2 and a water collection assembly are mounted. A support plate 3 is fixedly mounted on the output end of the first hydraulic cylinder 2. A second hydraulic cylinder 4 and a drilling assembly are mounted on the support plate 3. A first carrier plate 5 is fixedly mounted on the output end of the second hydraulic cylinder 4. A first motor 6 is mounted on the first carrier plate 5. A transmission rod 7 is fixed to the output shaft end of the first motor 6. The first carrier plate 5 is sleeved on the outside of the transmission rod 7, and the connection between the first carrier plate 5 and the transmission rod 7 is rotatably connected by a bearing. The first carrier plate 5 can support and reinforce the transmission rod 7. A base is fixed to the other end of the transmission rod 7. 8. A grinding disc 9 is installed on the carrier 8. The grinding disc 9 is used for grinding the rock wall. A support plate 10 is installed on the second hydraulic cylinder 4. Two third hydraulic cylinders 11 are installed on the support plate 10. A fixing plate 12 is fixedly installed on the output end of the two third hydraulic cylinders 11. Multiple rubber rings 13 are fixed on the other side of the fixing plate 12. The fixing plate 12 is installed on the drilling assembly. The multiple rubber rings 13 are coaxial and the diameter of the multiple rubber rings 13 increases from the inside to the outside. When the rubber rings 13 are in close contact with the rock wall, they can form a multi-level seal. The drilling assembly is used for drilling the rock strata. The water collection assembly is used for the discharge and transfer of water accumulated in the drilling assembly.

[0025] The first hydraulic cylinder 2 pushes the grinding disc 9 upward, moving it to the position to be drilled in the rock layer. The second hydraulic cylinder 4 pushes the grinding disc 9 closer to the rock layer, and the first motor 6 drives the grinding disc 9 to rotate, which can grind the position to be drilled in the rock layer flat. Then, the first hydraulic cylinder 2 pulls the drilling assembly downward, moving the fixing plate 12 to the flattened position in the rock layer. The two third hydraulic cylinders 11 push the rubber rings 13 on the fixing plate 12 to fit tightly against the rock layer. Multiple rubber rings 13 form a multi-level seal with the rock layer, which can effectively block the water overflowing during the drilling process and finally collect and transfer it by the water collection assembly.

[0026] The drilling assembly includes a fourth hydraulic cylinder 14 and a fixed cylinder 15. A fixed plate 12 is fixedly sleeved on the outside of the fixed cylinder 15. The fourth hydraulic cylinder 14 is mounted on a support plate 3 and a support plate 10. A second carrier plate 16 is fixedly mounted on the output end of the fourth hydraulic cylinder 14. A second motor 17 is mounted on the second carrier plate 16. A drill rod 18 is mounted on the output shaft end of the second motor 17. A sealing block 19 is sleeved on the outside of the drill rod 18. The joint between the drill rod 18 and the sealing block 19 is rotatably connected by a bearing. A seal is provided at the joint of the block 19 to ensure that the connection between the drill rod 18 and the sealing block 19 will not leak. A bellows 20 is fixed to the side of the sealing block 19 near the fixed cylinder 15. A connecting ring 21 is fixed between the bellows 20 and the fixed cylinder 15. The inside of the bellows 20 can be cleaned by removing the connecting ring 21. The fixed cylinder 15, the bellows 20 and the connecting ring 21 are all sleeved on the outside of the drill rod 18. A reinforcing plate 22 is fixedly sleeved on the outside of the sealing block 19. The reinforcing plate 22 is fixedly installed on the second carrier plate 16.

[0027] The second carrier plate 16 is moved by the fourth hydraulic cylinder 14, and the second carrier plate 16 drives the second motor 17 to move, so that the drill rod 18 driven by the second motor 17 can approach the rock formation to realize the drilling treatment of the rock formation. The fixed cylinder 15, connecting ring 21, corrugated pipe 20 and sealing block 19 can effectively wrap the drill rod 18, so that the water overflowing from the borehole will not spray outward, but can only be discharged along the water collection component, ensuring the prevention of blowout in the borehole. The debris generated by the borehole can be collected by the fixed cylinder 15, and the debris can flow into the water collection component with the accumulated water.

[0028] The water collection assembly includes a water storage tank 23 and a water supply pipe 24. The water storage tank 23 is installed on the base 1. The top end of the water supply pipe 24 is connected to the fixed cylinder 15. The bottom end of the water supply pipe 24 is inserted into the interior of the water storage tank 23. A fixing block 25 is fixedly sleeved on the outside of the water supply pipe 24. The fixing block 25 is fixedly installed inside the water storage tank 23 to prevent the water supply pipe 24 from completely detaching from the water storage tank 23. A water pump 26 is installed on the outside of the water storage tank 23. The inlet of the water pump 26 is connected to the water storage tank 23. The outlet of the water pump 26 is fixedly connected to the drain pipe 27.

[0029] After the water overflows along the borehole, it will flow into the fixed cylinder 15. The water pipe 24 can guide the water in the fixed cylinder 15 to the water storage tank 23. If the amount of water is large, the water pump 26 can be activated to drain the water in the water storage tank 23, ensuring that the water storage tank 23 can effectively collect the water caused by the borehole.

[0030] Working principle of this utility model:

[0031] Move the equipment to the designated location. According to the location of the rock stratum to be drilled, place pads at the bottom of the base 1 to adjust the tilt angle of the base 1. Then, fix the base 1. The first hydraulic cylinder 2 pushes the grinding disc 9 upward, causing the grinding disc 9 driven by the first motor 6 to rotate. The second hydraulic cylinder 4 is activated to pull the grinding disc 9 closer to the rock stratum. The grinding disc 9 is used to grind the outer wall of the rock stratum to be drilled smooth. After grinding, the second hydraulic cylinder 4 is operated to pull the grinding disc 9 away from the rock stratum. The first hydraulic cylinder 2 is activated to retract, driving the fixing plate 12 to move down to the rock stratum grinding location.

[0032] Two third hydraulic cylinders 11 are activated to push the fixing plate 12 towards the rock stratum grinding area, causing multiple rubber rings 13 to adhere tightly to the rock stratum, forming a multi-stage seal. Then, the second motor 17 drives the drill rod 18 to rotate, and the fourth hydraulic cylinder 14 retracts, moving the drill rod 18 towards the rock stratum. The rotating drill rod 18 can then perform drilling operations on the rock stratum. During drilling, the corrugated pipe 20 can be folded. When drilling reaches the water-filled area of ​​the rock stratum, the second motor 17 stops operating, and the water in the rock stratum will... As water overflows along the borehole, it is blocked by the rubber ring 13 and cannot overflow outwards. Instead, it flows into the fixed cylinder 15. The water pipe 24 can guide the water to the water storage tank 23, where it is collected. If the water volume is too large and the water storage tank 23 cannot meet its storage needs, the water pump 26 can be activated to drain the water in the water storage tank 23 into the pond along the drain pipe 27 until all the water in the rock strata is cleared out, ensuring that water will not splash out during the drilling process and protecting the safety of equipment and personnel.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A blowout preventer for drilling equipment, comprising a base (1), characterized in that: A first hydraulic cylinder (2) and a water collection assembly are installed on the base (1). A support plate (3) is fixedly installed on the output end of the first hydraulic cylinder (2). A second hydraulic cylinder (4) and a drilling assembly are installed on the support plate (3). A first carrier plate (5) is fixedly installed on the output end of the second hydraulic cylinder (4). A first motor (6) is installed on the first carrier plate (5). A transmission rod (7) is fixed to the output shaft end of the first motor (6). The first carrier plate (5) is sleeved on the outside of the transmission rod (7), and the joint between the first carrier plate (5) and the transmission rod (7) rotates through a bearing. The transmission rod (7) is connected to a carrier (8) at the other end. A grinding disc (9) is installed on the carrier (8). A support plate (10) is installed on the second hydraulic cylinder (4). Two third hydraulic cylinders (11) are installed on the support plate (10). A fixing plate (12) is fixedly installed on the output end of the two third hydraulic cylinders (11). Several rubber rings (13) are fixed on the other side of the fixing plate (12). The fixing plate (12) is installed on the drilling assembly. The drilling assembly is used for drilling of rock strata. The water collection assembly is used for the discharge and transfer of water accumulated in the drilling assembly.

2. The blowout prevention equipment for drilling according to claim 1, characterized in that: The rubber rings (13) are coaxial, and the diameter of the rubber rings (13) increases gradually from the inside to the outside.

3. The blowout prevention equipment for drilling according to claim 1, characterized in that: The drilling assembly includes a fourth hydraulic cylinder (14) and a fixed cylinder (15). The fixed plate (12) is fixedly sleeved on the outside of the fixed cylinder (15). The fourth hydraulic cylinder (14) is mounted on a support plate (3). A second carrier plate (16) is fixedly mounted on the output end of the fourth hydraulic cylinder (14). A second motor (17) is mounted on the second carrier plate (16). A drill rod (18) is mounted on the output shaft end of the second motor (17). The fixed cylinder (15) is sleeved on the outside of the drill rod (18). A sealing block (19) is fitted around the outside of the drill rod (18). The joint between the drill rod (18) and the sealing block (19) is rotatably connected by a bearing. A sealing element is provided at the joint between the drill rod (18) and the sealing block (19). A bellows (20) is fixed on the side of the sealing block (19) near the fixed cylinder (15). A connecting ring (21) is fixed between the bellows (20) and the fixed cylinder (15). Both the bellows (20) and the connecting ring (21) are fitted around the outside of the drill rod (18).

4. A blowout prevention device for drilling according to claim 3, characterized in that: The sealing block (19) is externally fixedly fitted with a reinforcing plate (22), which is fixedly installed on the second carrier plate (16).

5. A blowout prevention device for drilling according to claim 3, characterized in that: The water collection assembly includes a water storage tank (23) and a water supply pipe (24). The water storage tank (23) is installed on the base (1). The top end of the water supply pipe (24) is connected to the fixed cylinder (15), and the bottom end of the water supply pipe (24) is inserted into the interior of the water storage tank (23).

6. A blowout prevention device for drilling according to claim 5, characterized in that: The water pipe (24) is fixedly fitted with a fixing block (25), which is fixedly installed inside the water storage tank (23).

7. A blowout prevention device for drilling according to claim 5, characterized in that: A water pump (26) is installed on the outside of the water storage tank (23). The inlet of the water pump (26) is connected to the water storage tank (23), and the outlet of the water pump (26) is fixedly connected to a drain pipe (27).

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