Anti-collision instrument for petroleum drilling rig

Abstract

The utility model discloses an anti-collision instrument for a petroleum drilling derrick, which belongs to the technical field of petroleum drilling derricks and comprises a stand column, a baffle assembly is arranged on the periphery of the stand column and comprises first baffles and second baffles, the first baffles are oppositely arranged, the second baffles are oppositely arranged, and one ends of the two first baffles are fixedly connected with two groups of connecting blocks which are oppositely arranged. Connecting pipes are fixedly connected between the two sets of connecting blocks, and the surface of one connecting pipe is rotationally connected with oppositely-arranged first rotating plates. The baffle, the first rotating plate, the second rotating plate, the first inclined plate and the second inclined plate are arranged, the stand column is protected through the baffle, a ship is prevented from impacting the stand column, meanwhile, transverse impact force borne by the baffle is converted into downward force through the rotating plates, the inclined plates and the fan-shaped floating plates, and the downward force is guided into seawater; and the ship is blocked by using the resistance of seawater, so that the influence on oil exploitation is avoided while accidents of the offshore drilling platform are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of oil drilling frames, in particular to an anti-collision device for oil drilling frames. Background Art

[0002] The derrick is a device used to place the crown block, hang the traveling block, hook, lifting ring, elevator and other machinery during the drilling or well repair process, as well as to lift and store drill pipes, oil pipes and sucker rods. The derrick is composed of the main body, crown block platform, crown block frame, second-level platform, riser platform and working ladder.

[0003] An offshore semi-submersible oil drilling platform uses a large buoy to make the oil drilling platform float on the sea surface, and the buoy is fixed by an anchor so that the offshore semi-submersible oil drilling platform can stay at a predetermined position. A plurality of columns are arranged above the buoy, and the drilling platform is on the columns. The offshore semi-submersible oil drilling platform can be fixed at a predetermined position by the buoy and the anchor. However, when a ship at sea makes an operational error or an accident hits the column, the column will drive the offshore drilling platform to move, causing an accident on the offshore drilling platform and affecting the exploitation of oil. Therefore, an anti-collision device for an oil drilling rig is proposed to solve the above problem. Utility Model Content

[0004] The utility model aims to solve the above-mentioned technical problems and proposes an anti-collision device for oil drilling rigs.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An anti-collision device for an oil drilling rig comprises a column, wherein a baffle assembly is arranged around the column, wherein the baffle assembly comprises a first baffle and a second baffle arranged opposite to each other, wherein one end of the two first baffles is fixedly connected to two groups of connecting blocks arranged opposite to each other, and a connecting pipe is fixedly connected between the two groups of connecting blocks, wherein a first rotating plate arranged opposite to each other is rotatably connected to the surface of one of the connecting pipes, and a second rotating plate arranged opposite to each other and rotatably connected to the first rotating plate is rotatably connected to the surface of the other connecting pipe.

[0007] Preferably, one end of the two second baffles is fixedly connected with two groups of relatively arranged fixed blocks, and a circular tube is fixedly connected between the two groups of fixed blocks, wherein the surface of one of the circular tubes is rotatably connected with a relatively arranged first inclined plate, and the surface of the other circular tube is rotatably connected with a relatively arranged second inclined plate that is rotatably connected to the first inclined plate.

[0008] Preferably, a floating ring is fixedly connected to the surface of the column, and a reset assembly is connected between the first baffle plate, the second baffle plate and the floating ring.

[0009] Preferably, the reset assembly includes a moving block fixedly connected to the top of the first baffle and the second baffle, a conduit penetrating the moving block and slidably connected to the moving block is fixedly connected to the surface of the floating ring, and a reset spring is fixedly connected between the floating ring and the moving block.

[0010] Preferably, a plurality of fan-shaped floating plates are slidably connected to the surface of the column, wherein one end of two of the fan-shaped floating plates is provided with trapezoidal grooves arranged opposite to each other, and both ends of the other two fan-shaped floating plates are provided with trapezoidal blocks engaged with the trapezoidal grooves.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model is provided with a baffle, a first rotating plate, a second rotating plate, a first inclined plate and a second inclined plate. The baffle is used to protect the column to prevent the ship from hitting the column. At the same time, the lateral impact force received by the baffle is converted into a downward force and introduced into the sea water through the rotating plate, the inclined plate and the fan-shaped floating plate, and the resistance of the sea water is used to block the ship, thereby avoiding accidents on the offshore drilling platform and avoiding affecting the extraction of oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a three-dimensional structural schematic diagram of an anti-collision device for an oil drilling rig.

[0014] Figure 2 The utility model is an assembly diagram of an anti-collision device for an oil drilling rig.

[0015] Figure 3 The utility model discloses a structural schematic diagram of a first baffle and a second baffle in an anti-collision device for an oil drilling rig.

[0016] Figure 4 The utility model is a schematic structural diagram of a fan-shaped floating plate in an anti-collision device for an oil drilling rig.

[0017] In the figure: 1, column; 101, fan-shaped floating plate; 102, trapezoidal block; 2, first baffle; 201, connecting block; 202, connecting pipe; 3, conduit; 301, return spring; 4, moving block; 5, floating ring; 6, second baffle; 601, fixed block; 602, circular tube; 7, first inclined plate; 8, second inclined plate; 9, first rotating plate; 10, second rotating plate. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] Reference Figure 1-4 , an anti-collision device for an oil drilling rig, comprising a column 1, a baffle assembly is arranged around the column 1 (the baffle assembly surrounds the column 1 in the middle, so as to prevent the column 1 from moving due to impact), the baffle assembly comprises a first baffle 2 and a second baffle 6 arranged oppositely (the first baffle 2 and the second baffle 6 form a rectangle to protect the column 1), one end of the two first baffles 2 is fixedly connected with two groups of connecting blocks 201 arranged oppositely, and a connecting pipe 202 is fixedly connected between the two groups of connecting blocks 201, the surface of one connecting pipe 202 is rotatably connected with a first rotating plate 9 arranged oppositely, and the surface of the other connecting pipe 202 is rotatably connected with a second rotating plate 10 arranged oppositely and rotatably connected to the first rotating plate 9 (when the first baffle 2 moves, the first rotating plate 9 or the second rotating plate 10 can be rotated downward, and the lateral impact force received by the first baffle 2 can be converted into a downward force, and introduced into the sea water, so as to increase the resistance of the sea water to block the ship);

[0020] One end of the two second baffles 6 is fixedly connected to two groups of relatively arranged fixed blocks 601, and a circular tube 602 is fixedly connected between the two groups of fixed blocks 601. The surface of one circular tube 602 is rotatably connected to a relatively arranged first inclined plate 7, and the surface of the other circular tube 602 is rotatably connected to a relatively arranged second inclined plate 8 that is rotatably connected to the first inclined plate 7 (when the second baffle 6 moves, the first inclined plate 7 or the second inclined plate 8 can be rotated downward, converting the lateral impact force received by the second baffle into a downward force, and introducing it into the sea water, thereby increasing the resistance of the sea water to block the ship).

[0021] Furthermore, a floating ring 5 is fixedly connected to the surface of the column 1 (the floating ring 5 is fixedly connected to the bottom end of the offshore semi-submersible oil drilling platform), a reset assembly is connected between the first baffle 2 and the second baffle 6 and the floating ring 5 (the reset assembly enables the first baffle 2 and the second baffle 6 to be reset), the reset assembly includes a moving block 4 fixedly connected to the top of the first baffle 2 and the second baffle 6, a conduit 3 that penetrates the moving block 4 and is slidably connected to the surface of the floating ring 5 is fixedly connected, and a reset spring 301 is fixedly connected between the floating ring 5 and the moving block 4.

[0022] It should be noted that: a plurality of fan-shaped floating plates 101 are slidably connected to the surface of the column 1 (the downward rotation of the rotating plate or the inclined plate will push the fan-shaped floating plates 101 downward and squeeze the seawater, thereby increasing the resistance of the seawater to the ship, thereby alleviating the impact force of the ship's baffle), two of which are provided with trapezoidal grooves arranged opposite to each other at one end, and trapezoidal blocks 102 engaged with the trapezoidal grooves are provided at both ends of the other two fan-shaped floating plates 101.

[0023] A further benefit of adopting the above method is that the above device protects the column 1 through the baffle to prevent the column 1 from being hit, and at the same time converts the lateral impact force on the baffle into the seawater, increasing the resistance of the seawater to block the ship, avoiding accidents on the offshore drilling platform while avoiding affecting the extraction of oil.

[0024] When the utility model is in use: when the offshore semi-submersible oil drilling platform encounters an operation error of a ship at sea and hits the column 1 below the offshore semi-submersible oil drilling platform, the multiple baffles arranged around the column 1 will protect the column 1, so that the ship can only hit the baffle (such as the second baffle 6). When the ship hits the second baffle 6, the lateral impact force of the ship on the second baffle 6 will cause the hit second baffle 6 to move and move to the middle. When the second baffle 6 moves horizontally, it will drive the second inclined plate 8 to move;

[0025] Since the other second baffle plate 6 cannot move at this time, it is in a fixed state. Therefore, when the impacted second baffle plate 6 moves horizontally, it will drive the first inclined plate 7 to rotate downward (at the same time, the second inclined plate 8 will also rotate downward under the action of the first inclined plate 7), and at the same time push multiple fan-shaped floating plates 101 to move downward and squeeze the seawater, thereby increasing the resistance of the seawater, and using the resistance of the seawater to block the ship, avoiding accidents on the offshore drilling platform while avoiding affecting the exploitation of oil.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-collision device for an oil drilling rig, comprising a column (1), characterized in that: A baffle assembly is arranged around the pillar (1), and the baffle assembly comprises first baffles (2) and second baffles (6) arranged opposite to each other, one end of the two first baffles (2) is fixedly connected to two groups of connecting blocks (201) arranged opposite to each other, a connecting pipe (202) is fixedly connected between the two groups of connecting blocks (201), a surface of one of the connecting pipes (202) is rotatably connected to a first rotating plate (9) arranged opposite to each other, and a surface of the other connecting pipe (202) is rotatably connected to a second rotating plate (10) arranged opposite to each other and rotatably connected to the first rotating plate (9).

2. The anti-collision device for oil drilling rig according to claim 1, characterized in that: One end of the two second baffles (6) is fixedly connected to two groups of fixed blocks (601) arranged opposite to each other, and a circular tube (602) is fixedly connected between the two groups of fixed blocks (601), wherein the surface of one of the circular tubes (602) is rotatably connected to a first inclined plate (7) arranged opposite to each other, and the surface of the other circular tube (602) is rotatably connected to a second inclined plate (8) arranged opposite to each other and rotatably connected to the first inclined plate (7).

3. The anti-collision device for oil drilling rig according to claim 1, characterized in that: A floating ring (5) is fixedly connected to the surface of the column (1), and a reset assembly is connected between the first baffle plate (2) and the second baffle plate (6) and the floating ring (5).

4. The anti-collision device for oil drilling rigs according to claim 3, characterized in that: The reset assembly comprises a moving block (4) fixedly connected to the top of a first baffle (2) and a second baffle (6); a conduit (3) penetrating the moving block (4) and slidably connected to the moving block (4) is fixedly connected to the surface of the floating ring (5); and a reset spring (301) is fixedly connected between the floating ring (5) and the moving block (4).

5. The anti-collision device for oil drilling rigs according to claim 4, characterized in that: A plurality of fan-shaped floating plates (101) are slidably connected to the surface of the column (1), wherein two of the fan-shaped floating plates (101) are provided with trapezoidal grooves arranged opposite to each other at one end, and the other two fan-shaped floating plates (101) are provided with trapezoidal blocks (102) engaged with the trapezoidal grooves at both ends.

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