Guiding device for inclined hole drilling

Abstract

The utility model discloses a guide device for inclined hole drilling and relates to inclined hole drilling. The guide device is arranged in a drill tower, located between a crown block and a drill hole and connected with a cross beam of the crown block and a drill rod of the drill tower, the guide device comprises a traveling pulley, a pulley, two steel wire ropes and an elevator, the two steel wire ropes are parallel to each other and obliquely arranged between the cross beam of the crown block and a mountain at the lower end of the drill tower, and the upper ends of the steel wire ropes are connected with the cross beam. The lower end is connected with the mountain; the elevator is mounted on the drill rod and slides along the drill rod, and the traveling pulley is connected with the elevator; the two ends of the elevator and the two ends of the traveling tackle are each connected with two pulleys, and the pulleys are installed on the steel wire ropes on the two sides respectively and slide along the steel wire ropes. According to the utility model, the steel wire rope is tightened through the rope tensioning device, and the traveling tackle is stabilized by the elevator and the pulley together, so that the orifice, the traveling tackle and the crown block are in three points and one line, the swinging of the traveling tackle and the elevator during tripping is avoided, the traveling tackle and the elevator move along a drilling track, and the high efficiency and safety of tripping are ensured.

Description

Technical Field

[0001] This utility model relates to inclined hole drilling, and in particular to a guiding device for inclined hole drilling that prevents the traveling block and hoist from swinging during tripping in and out of the drill string, guides the traveling block and hoist to move along the drilling trajectory. Background Technology

[0002] During the drilling process of inclined holes, the movement trajectory of the traveling block is not on the same straight line as the borehole trajectory, which increases the resistance of the drilling and makes the borehole wall unsafe. Long-term drilling and hoisting has an adverse effect on the borehole trajectory and borehole morphology. The larger the borehole apex angle, the more significant the impact. Summary of the Invention

[0003] The present invention aims to solve the problems existing in the current process of inclined hole drilling, and provides a guiding device for inclined hole drilling that prevents the traveling block and hoist from swinging during drilling and guides the traveling block and hoist to move along the drilling trajectory.

[0004] This utility model discloses a guiding device for inclined hole drilling, which is installed inside the drilling tower, located between the overhead crane and the borehole, and connected to the crossbeam of the overhead crane and the drill rod of the drilling tower. The guiding device comprises a traveling trolley, pulleys, wire ropes, and a lifting device. Two wire ropes are parallel to each other and inclined between the crossbeam of the overhead crane and the mountain at the lower end of the drilling tower. The upper end of the wire rope is connected to the crossbeam, and the lower end is connected to the mountain. The lifting device is installed on the drill rod and slides along the drill rod. The traveling trolley is connected to the lifting device. Both ends of the lifting device and the traveling trolley are connected to two pulleys, which are respectively installed on the wire ropes on both sides and slide along the wire ropes.

[0005] The pulleys are connected to the lifting device and the moving trolley via steel ropes.

[0006] The steel wire rope is equipped with two rope tensioners, which are located at both ends of the steel wire rope, with pulleys positioned between the two rope tensioners.

[0007] This utility model discloses a guiding device for inclined hole drilling. It has a simple structure, scientific design, and is easy to use. The steel wire rope is tightened by the tensioner, and the traction device and pulley work together to stabilize the traveling block, so that the hole opening, traveling block, and jack are in a straight line. This prevents the traveling block and traction device from swinging during drilling and jacking, and guides the traveling block and traction device to move along the drilling trajectory, ensuring high efficiency and safety during drilling and jacking. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model.

[0009] Among them, the crane is 1, the drilling tower is 2, the traveling pulley is 3, the hoist is 4, the borehole is 5, the wire rope is 6, the rope tensioner is 7, the pulley is 8, and the crossbeam is 9. Detailed Implementation

[0010] Example 1: A guiding device for inclined hole drilling, installed inside the drilling rig, located between the overhead crane and the borehole, and connected to the crossbeam of the overhead crane and the drill rod of the drilling rig. The guiding device includes a traveling block, pulleys, wire ropes, and a hoist. Two wire ropes are parallel and inclined, positioned between the crossbeam of the overhead crane and the lower part of the rig's rock face. The upper end of each wire rope is connected to the crossbeam, and the lower end is connected to the rock face. The hoist is mounted on the drill rod and slides along it. The traveling block is connected to the hoist via a wire rope. Two pulleys are connected to both ends of the hoist and the traveling block. The pulleys are mounted on the wire ropes on both sides and slide along them. The pulleys are connected to the hoist and the traveling block via wire ropes. Two rope tensioners are installed on the wire ropes at both ends, with the pulleys located between them.

[0011] Two steel wire ropes, each with a diameter of at least 12.5mm, are used to secure both ends to the base of the drilling rig and the crossbeam of the overhead crane. The ropes are taut at both ends using rope tensioners and are parallel to the borehole centerline. A traveling block is connected to a hoist, which in turn is connected to the drill pipe. Both ends of the traveling block and the hoist are connected to two small pulleys on the steel wire rope. The traveling block, hoist, and pulleys move together along the steel wire rope, ensuring that the borehole opening, traveling block, hoist, and overhead crane are aligned, guaranteeing efficient and safe drilling operations.

Claims

1. A guiding device for inclined hole drilling, disposed inside a drilling rig, located between the gantry crane and the borehole, and connected to the crossbeam of the gantry crane and the drill rod of the drilling rig, characterized in that... The guiding device includes a traveling block, pulleys, wire ropes, and a hoist. Two wire ropes are parallel to each other and inclined between the crossbeam of the overhead crane and the mountain at the lower end of the drilling rig. The upper end of the wire rope is connected to the crossbeam, and the lower end is connected to the mountain. The hoist is installed on the drill pipe and slides along the drill pipe. The traveling block is connected to the hoist. Both the hoist and the traveling block have two pulleys connected to both ends. The pulleys are installed on the wire ropes on both sides and slide along the wire ropes.

2. The guiding device for inclined hole drilling as described in claim 1, characterized in that... The pulleys are connected to the lifting device and the moving trolley via steel ropes.

3. The guiding device for inclined hole drilling as described in claim 1, characterized in that... The steel wire rope is equipped with two rope tensioners, which are located at both ends of the steel wire rope, with pulleys positioned between the two rope tensioners.

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