Blowout prevention blocking structure for petroleum drilling

Abstract

The utility model relates to the technical field of petroleum drilling, in particular to a blowout prevention blocking structure for petroleum drilling, and aims to solve the technical problems that an existing blowout prevention blocking device is of an integrated design, and when an internal blocking structure is replaced, a large amount of time needs to be spent on disassembling the blowout prevention blocking device; according to the technical scheme, the blowout prevention blocking structure for petroleum drilling comprises a blocking pipe formed by combining a transverse pipe and a vertical pipe, a conveying pipe, a blowout prevention blocking assembly, a moving assembly and a dismounting and mounting assembly; according to the blowout prevention blocking device, an existing blowout prevention blocking device is improved, an original integrally-designed blowout prevention blocking device is refitted into a detachable type, the transverse pipe provided with the moving assembly connected with the blowout prevention blocking assembly is disassembled through the disassembling and assembling assembly on the premise that the whole blowout prevention blocking device does not need to be improved, and therefore the blowout prevention blocking device can be disassembled conveniently. The blowout prevention blocking device aims to solve the problems that an existing blowout prevention blocking device is of an integrated design, and when an internal blocking structure is replaced, a large amount of time needs to be consumed for disassembling the blowout prevention blocking device.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil drilling, and in particular relates to an oil drilling anti-blowout blocking structure. Background Art

[0002] In modern society, oil is one of the important energy sources that is indispensable in life and production. The use of oil requires the extraction of crude oil from oil fields and then gradual processing. During the extraction process, once the pressure of the underlying fluid is greater than the pressure in the well and a large amount of fluid flows into the wellbore, a blowout accident will occur. In order to avoid casualties and property losses caused by the huge pressure and shock waves during the eruption of a blowout accident, anti-blowout blocking devices are often installed at the import.

[0003] At present, during the use of the existing blowout prevention blocking device, since the blocking structure is often installed inside, when it is worn and needs to be repaired and replaced, it takes a lot of time and manpower to dismantle the entire blowout prevention blocking device.

[0004] Therefore, in view of the problem that the above-mentioned existing anti-blowout blocking device is an integrated design and it takes a lot of time to dismantle the anti-blowout blocking device when replacing the internal blocking structure, the existing anti-blowout blocking device is improved so that the internal blocking parts can be easily replaced without removing the entire anti-blowout blocking device. Utility Model Content

[0005] In order to overcome the problem that the existing blowout prevention blocking device is an integrated design, it takes a lot of time to disassemble the blowout prevention blocking device when replacing the internal blocking structure.

[0006] The technical solution of the utility model is: an anti-blowout blocking structure for oil drilling, comprising a blocking pipe composed of a horizontal pipe and a vertical pipe, a transport pipe, an anti-blowout blocking component, a mobile component, and a disassembly component; the vertical pipe is provided with a transport pipe, the vertical pipe is provided with an anti-blowout blocking component, the horizontal pipe is installed with a mobile component for adjusting the position of the anti-blowout blocking component in the partition pipe, and the horizontal pipe is provided with a disassembly component.

[0007] Preferably, the blowout prevention blocking device originally designed in an integrated manner is modified into a detachable style, and the internal blowout prevention blocking components can be easily replaced by disassembling and assembling the components, and the mobile components are used to change the position of the blowout prevention blocking components in the horizontal pipe.

[0008] Preferably, the blowout prevention partition assembly includes a support ring and a partition ring; a support ring is provided in the vertical pipe and is in close contact with the outside of the transport pipe; a partition ring is provided in the vertical pipe and is opposite to the support ring on the left and right; the transport pipe is squeezed by moving the partition ring toward the support ring, and together with the closed transport pipe, a barrier is formed to prevent internal oil blowouts.

[0009] Preferably, the blowout prevention partition assembly also includes a silicone pad; the silicone pad is bonded to the opposite side of the support ring and the partition ring, and the silicone pad forms a buffer layer between the support ring and the partition ring to prevent the transport pipe from being completely clamped off by the blowout prevention partition assembly, resulting in oil leakage.

[0010] Preferably, the moving assembly includes a guide rod and a guide groove; the guide rod is fixedly connected to the support ring, and a guide groove matching the guide rod is provided on the partition ring. The moving direction of the partition ring can be positioned by the guide rod and the guide groove, and the guide rod can play a limiting role to prevent the anti-blowout partition assembly from loosening under the impact of oil.

[0011] Preferably, the moving component further includes a slide groove and a slider; a front and rear slide groove facing each other is opened in the transverse tube, a slider is slidably connected in the slide groove, and the support ring is installed between the two slide grooves. The position of the support ring is changed by moving the slider in the slide groove, so that the support ring is close to the inner side of the transport tube.

[0012] Preferably, the moving component also includes an oil cylinder; two oil cylinders are inserted into the horizontal tube and are opposite to each other on the left and right, the piston rod of the left cylinder is connected to the support ring, and the piston rod of the right cylinder is connected to the partition ring. When the oil cylinder is started, the piston rod of the oil cylinder pushes the support ring and the partition ring to move inward to partition the transport pipe.

[0013] Preferably, the disassembly and assembly assembly includes a removable plate and a support plate; the removable plate is provided on the transverse tube, and the support plate is fixedly connected to the transverse tube, and anchor holes are provided on the support plate and the removable plate, and the removable plate is fixed to the support plate by bolts serving as anchors to form a sealed state of the transverse tube.

[0014] Beneficial effects of the utility model:

[0015] By improving the existing anti-blowout blocking device, the originally integrated anti-blowout blocking device is converted into a detachable style, and the horizontal pipe equipped with the mobile component connected to the anti-blowout partition component is disassembled by disassembling the components, and the internal anti-blowout partition component is replaced without spending a lot of time to improve the entire anti-blowout blocking device;

[0016] The oil cylinder pushes the partition ring to move toward the support ring, squeezing the transport pipe to form a barrier to prevent oil blowout. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The first three-dimensional structural diagram of the oil well drilling blowout prevention blocking structure of the utility model is shown;

[0018] Figure 2 The second three-dimensional structure schematic diagram of the oil well drilling blowout prevention blocking structure of the utility model is shown;

[0019] Figure 3 The third three-dimensional structure schematic diagram of the oil well blowout prevention blocking structure of the utility model is shown;

[0020] Figure 4 The fourth three-dimensional structure schematic diagram of the oil well drilling blowout prevention blocking structure of the utility model is shown;

[0021] Figure 5 The three-dimensional structure diagram of the support ring of the oil well blowout prevention blocking structure of the utility model is shown;

[0022] Figure 6 What is shown is a three-dimensional structural schematic diagram of a detachable plate of a petroleum drilling anti-blowout blocking structure of the utility model.

[0023] Explanation of the accompanying drawings: 1. horizontal tube; 2. vertical tube; 3. transport tube; 401. support ring; 402. partition ring; 403. silicone pad; 501. guide rod; 502. guide groove; 503. slide groove; 504. slider; 505. cylinder; 601. removable plate; 602. support plate. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] See also Figure 1-2 The utility model provides an embodiment: an oil drilling anti-blowout blocking structure includes a blocking pipe composed of a horizontal pipe 1 and a vertical pipe 2, a transport pipe 3, an anti-blowout blocking component, a mobile component, and a disassembly component; the vertical pipe 2 is provided with a transport pipe 3, the vertical pipe 2 is provided with an anti-blowout blocking component, the horizontal pipe 1 is installed with a mobile component for adjusting the position of the anti-blowout blocking component in the partition pipe, and the horizontal pipe 1 is provided with a disassembly component. By converting the originally integrated anti-blowout blocking device into a detachable style, the internal anti-blowout blocking component can be easily replaced by disassembling the component, and the mobile component is used to change the position of the anti-blowout blocking component in the horizontal pipe 1.

[0026] See also Figure 2-4 In this embodiment, the blowout prevention partition assembly includes a support ring 401 and a partition ring 402; a support ring 401 is provided in the vertical pipe 2 to be close to the outer side of the transport pipe 3, and a partition ring 402 is provided in the vertical pipe 2 to be opposite to the support ring 401 on the left and right sides. The blowout prevention partition assembly also includes a silicone pad 403; the silicone pad 403 is bonded to the opposite side of the support ring 401 and the partition ring 402, and the partition ring 402 moves toward the support ring 401 to squeeze the transport pipe 3, and forms a barrier together with the closed transport pipe 3 to prevent internal oil blowouts. The silicone pad 403 forms a buffer layer between the support ring 401 and the partition ring 402 to prevent the transport pipe 3 from being completely clamped off by the blowout prevention partition assembly, resulting in oil leakage.

[0027] See also Figure 3-6 In this embodiment, the moving assembly includes a guide rod 501 and a guide groove 502; the guide rod 501 is fixedly connected to the support ring 401, and the guide groove 502 matching the guide rod 501 is provided on the partition ring 402, and the moving assembly includes a slide groove 503 and a slider 504; the cross tube 1 is provided with front and rear opposite slide grooves 503, and the slider 504 is slidably connected in the slide groove 503, and the support ring 401 is installed between the two slide grooves 503, and the moving assembly also includes an oil cylinder 505; two oil cylinders 505 opposite to each other on the left and right are inserted in the cross tube 1, the piston rod of the left oil cylinder 505 is connected to the support ring 401, and the piston rod of the right oil cylinder 505 is connected to the partition ring 402, and the disassembly assembly includes a removable plate 601 and a support plate 602; A detachable plate 601 is provided on the pipe 1, and a support plate 602 is fixedly connected to the transverse pipe 1. Anchor holes are provided on the support plate 602 and the detachable plate 601. The moving direction of the partition ring 402 can be positioned by the guide rod 501 and the guide groove 502. At the same time, the guide rod 501 can play a limiting role to prevent the anti-blowout partition assembly from loosening under the impact of oil. The position of the support ring 401 is changed by moving the slider 504 in the slide groove 503, so that the support ring 401 is close to the inner side of the transport pipe 3, and the oil cylinder 505 is started. The piston rod of the oil cylinder 505 pushes the support ring 401 and the partition ring 402 to move inward to partition the transport pipe 3. The detachable plate 601 is fixed to the support plate 602 by bolts serving as anchors to form a sealed state of the transverse pipe 1.

[0028] When working, the staff first installs the partition pipe on the oil drilling. Once the detection device detects that the internal pressure is too high and there is a risk of blowout, the oil cylinder 505 is started, and the piston rod of the oil cylinder 505 pushes the partition ring 402 to fit tightly with the support ring 401, and the transport pipe 3 is squeezed and deformed by the partition ring 402 to form a sealed state to avoid a blowout.

[0029] During use, the partition ring 402 and the support ring 401 will wear out. By removing the bolts in the anchor holes that serve as anchor columns, the removable plate 601 is removed from the cross pipe 1, and the oil cylinder 505 is started. The oil cylinder 505 retracts the piston rod and brings out the support ring 401 and the partition ring 402, which is convenient for the staff to replace them.

[0030] Install the new partition ring 402 on the cylinder 505, then install the new support ring 401 on the slider 504, start the cylinder 505, the piston rod of the cylinder 505 pushes the support ring 401 close to the outside of the transport pipe 3, place the removable plate 601 on the support plate 602, pass the bolts through the anchor holes opened on the removable plate 601 and the support plate 602, and tighten the nuts to fix it.

[0031] Through the above steps, the existing anti-blowout blocking device is improved, and the originally integrated anti-blowout blocking device is converted into a detachable style. By disassembling and assembling the components, the cross pipe 1 equipped with the mobile component connected to the anti-blowout partition component is disassembled, and the internal anti-blowout partition component is replaced without spending a lot of time to improve the entire anti-blowout blocking device, so as to solve the problem that the existing anti-blowout blocking device is an integrated design, and it takes a lot of time to disassemble the anti-blowout blocking device when replacing the internal blocking structure.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A blowout prevention blocking structure for oil drilling, comprising a blocking pipe and a transport pipe (3) formed by a combination of a horizontal pipe (1) and a vertical pipe (2); characterized in that: It also includes a blowout prevention blocking component, a moving component, and a disassembly component; a transport pipe (3) is arranged in the vertical pipe (2), the blowout prevention blocking component is arranged in the vertical pipe (2), a moving component for adjusting the position of the blowout prevention blocking component in the partition pipe is installed in the horizontal pipe (1), and a disassembly component is arranged on the horizontal pipe (1).

2. The oil drilling blowout prevention blocking structure according to claim 1 is characterized in that: The blowout prevention partition assembly comprises a support ring (401) and a partition ring (402); a support ring (401) is arranged in the vertical pipe (2) and is in close contact with the outer side of the transport pipe (3); and a partition ring (402) is arranged in the vertical pipe (2) and is opposite to the support ring (401) on the left and right.

3. The oil drilling blowout prevention blocking structure according to claim 2 is characterized in that: The blowout prevention partition assembly further comprises a silicone pad (403); the silicone pad (403) is bonded to the opposite side of the support ring (401) and the partition ring (402).

4. The oil drilling blowout prevention blocking structure according to claim 3 is characterized in that: The moving assembly comprises a guide rod (501) and a guide groove (502); the guide rod (501) is fixedly connected to the support ring (401), and the partition ring (402) is provided with a guide groove (502) matching the guide rod (501).

5. The oil drilling blowout prevention blocking structure according to claim 4 is characterized in that: The moving assembly further comprises a slide groove (503) and a slider (504); the transverse tube (1) is provided with front and rear opposite slide grooves (503), the slide groove (503) is slidably connected with the slider (504), and the support ring (401) is installed between the two slide grooves (503).

6. The oil drilling blowout prevention blocking structure according to claim 5, characterized in that: The moving assembly also includes an oil cylinder (505); two oil cylinders (505) are inserted into the transverse tube (1) and are opposite to each other on the left and right sides; the piston rod of the left oil cylinder (505) is connected to the support ring (401), and the piston rod of the right oil cylinder (505) is connected to the partition ring (402).

7. The oil drilling blowout prevention blocking structure according to claim 1 is characterized in that: The disassembly assembly comprises a removable plate (601) and a support plate (602); the removable plate (601) is arranged on the transverse tube (1), the support plate (602) is fixedly connected to the transverse tube (1), and anchor holes are provided on the support plate (602) and the removable plate (601).

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