Moving device for preventing drill sticking caused by long-time placement of rope drill rod in hole

Abstract

The utility model discloses a mover for preventing sticking of a rope drill rod caused by long-time placement in a hole, which belongs to the technical field of prospecting engineering and comprises a drill rod catcher, an upper cover plate is fixedly connected to the lower end face of a supporting seat, and a thrust bearing straining ring is fixedly connected to the lower end face of the upper cover plate. A thrust bearing loose ring is arranged below the thrust bearing tight ring, a plurality of bearing steel balls distributed in an array mode are movably connected between the thrust bearing tight ring and the thrust bearing loose ring, a lower cover plate is fixedly connected to the lower end face of the thrust bearing loose ring, and the lower cover plate is rotationally connected with the outer wall of the drill rod catcher. A worker needs to clamp the supporting seat with a pipe wrench or other tools every minute or stir the clamping column, so that the upper cover plate drives the thrust bearing straining ring to rotate, the drill rod catcher rotates along with the upper cover plate, the whole drilling tool rotates to a circle in a hole, the drill sticking accident is prevented, the drill sticking prevention effect is good, a power machine of the drilling machine does not need to be started frequently, cost is low, and work efficiency is high. And the construction efficiency is indirectly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of prospecting engineering, and particularly relates to a movable device for preventing sticking of wireline drill pipes due to long-term placement in a borehole. Background Art

[0002] The wireline coring drill pipe is a drill pipe used to obtain rock cores without pulling out the drill pipe, and is widely used in fields such as geological prospecting and coalfield geological exploration. However, since the drill pipe is not completely pulled out of the borehole during coring, it is prone to cause sticking and jamming accidents in the borehole.

[0003] In actual construction, in order to prevent sticking of the drill pipe, workers often hang a steel wire rope on the hole mouth gripper during coring, and then pull the steel wire rope through a winch to make the drill pipe move up and down. Sometimes, this method may cause the gripper to move up and down non-levelly due to the knotting of the steel wire rope or inconsistent lengths of the steel wire ropes, resulting in uneven stress on the gripper, which is prone to cause loosening due to clamping and lead to a drill running accident. The effect of preventing sticking is poor. At the same time, the power machine of the drilling rig needs to be frequently started, the cost is high, the operation is troublesome, and the construction efficiency is affected. Summary of the Utility Model

[0004] To solve the problems in the above background, the utility model provides a movable device for preventing sticking of wireline drill pipes due to long-term placement in a borehole, which has the characteristics of good effect of preventing sticking, no need to frequently start the power machine of the drilling rig, low cost, and indirectly improving the construction efficiency.

[0005] The utility model is realized as follows: A movable device for preventing sticking of wireline drill pipes due to long-term placement in a borehole includes a drill pipe sub, a hoisting sub is arranged on the upper end surface of the drill pipe sub, a support seat is fixedly connected to the outer wall of the drill pipe sub, an upper cover plate is fixedly connected to the lower end surface of the support seat, a thrust bearing retaining ring is fixedly connected to the lower end surface of the upper cover plate, a thrust bearing loose ring is arranged below the thrust bearing retaining ring, a plurality of bearing steel balls distributed in an array are movably connected between the thrust bearing retaining ring and the thrust bearing loose ring, a lower cover plate is fixedly connected to the lower end surface of the thrust bearing loose ring, and the lower cover plate is rotatably connected to the outer wall of the drill pipe sub.

[0006] To facilitate the disassembly and assembly of the hoisting sub, as a preferred embodiment of the movable device for preventing sticking of wireline drill pipes due to long-term placement in a borehole of the utility model, a fixing ring is fixedly connected to the lower end surface of the hoisting sub, and the fixing ring is detachably connected to the drill pipe sub.

[0007] To limit the lower cover plate, as a preferred embodiment of the movable device for preventing sticking of wireline drill pipes due to long-term placement in a borehole of the utility model, a central sleeve is fixedly connected to the upper end surface of the lower cover plate, and a limiting groove matching the central sleeve is opened on the lower end surface of the upper cover plate.

[0008] In order to facilitate the connection between the drill rod adapter and the rope rotating rod, as a preferred movable device of the utility model for preventing the rope drill rod from being placed in the hole for a long time and causing the drill to stick, a thread is provided at the lower end of the outer wall of the drill rod adapter.

[0009] In order to facilitate the twisting of the support seat, as a preferred movable device of the utility model for preventing the rope drill rod from being left in the hole for a long time and causing the drill to stick, the outer wall of the support seat is fixedly connected with a plurality of convex ridges distributed in an array.

[0010] In order to facilitate the rotation of the upper cover plate, as a preferred movable device of the utility model for preventing the rope drill rod from being placed in the hole for a long time and causing the drill to stick, the outer edge of the upper end surface of the upper cover plate is fixedly connected with a clamping column.

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

[0012] The utility model discloses that when coring, first connect with the rope drill rod through the thread at the lower end of the outer wall of the drill rod adapter, buckle the lifting adapter with the lifting device, lift the drill tool as a whole by 1 meter, remove the clamping pressure on the hole mouth clamp and then slowly drop the drill tool, so that the lower cover plate of the movable device is firmly seated on the hole mouth clamp, and remove the lifting adapter with a pipe clamp or other tools, lower the rope salvage device from the drill rod adapter into the rope drill rod, and start coring. During the coring process, in a borehole with thick porous sandstone formation or a borehole with a deep hole, the worker needs to clamp the support seat with a pipe clamp or other tools every minute or toggle the clamping column to make the upper cover plate drive the thrust bearing tightening ring to rotate, so that the drill rod adapter rotates accordingly, and the drill tool as a whole rotates to a circle in the hole, so as to prevent drill sticking accidents and the effect of preventing drill sticking is good, and there is no need to frequently start the drilling rig power machine, so the cost is low and the construction efficiency is indirectly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the overall structural diagram of a movable device for preventing the rope drill rod from being stuck in the hole due to being placed in the hole for a long time;

[0014] Figure 2 It is the overall cutaway structural diagram of the utility model;

[0015] Figure 3 It is a front view of the utility model.

[0016] In the figure, 1. lifting handle; 2. drill pipe handle; 3. clamping column; 4. support seat; 5. upper cover plate; 6. thrust bearing tightening ring; 7. thrust bearing loose ring; 8. lower cover plate; 9. bearing steel ball; 10. thread; 11. fixing ring; 12. center sleeve; 13. limit groove; 14. convex ridge. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0019] See also Figures 1-3 A movable device for preventing a rope drill rod from being stuck in a hole due to being placed for a long time comprises a drill rod adapter 2, a lifting adapter 1 is arranged on the upper end surface of the drill rod adapter 2, a support seat 4 is fixedly connected to the outer wall of the drill rod adapter 2, an upper cover plate 5 is fixedly connected to the lower end surface of the support seat 4, a thrust bearing tightening ring 6 is fixedly connected to the lower end surface of the upper cover plate 5, a thrust bearing loose ring 7 is arranged below the thrust bearing tightening ring 6, a plurality of bearing steel balls 9 distributed in an array are movably connected between the thrust bearing tightening ring 6 and the thrust bearing loose ring 7, a lower cover plate 8 is fixedly connected to the lower end surface of the thrust bearing loose ring 7, and the lower cover plate 8 is rotatably connected to the outer wall of the drill rod adapter 2.

[0020] In this embodiment: when coring, first connect the rope drill pipe through the thread 10 at the lower end of the outer wall of the drill pipe adapter 2, buckle the lifting adapter 1 with the lifting device, lift the drill tool as a whole for 1 meter, remove the clamping pressure on the hole clamp and then slowly drop the drill tool, so that the lower cover plate 8 of the movable device is firmly seated on the hole clamp, and use tools such as pipe clamps to remove the lifting adapter 1, and lower the rope salvage device from the drill pipe adapter 2 into the rope drill pipe to start coring. During the coring process, in a borehole with a thicker porous sandstone formation or a deeper borehole, the worker needs to clamp the support seat 4 with a pipe clamp or other tools every 20 minutes, or by toggling the clamping column 3, the upper cover plate 5 drives the thrust bearing tightening ring 6 to rotate, so that the drill pipe adapter 2 rotates with it, and the drill tool as a whole rotates 3 to 5 times in the hole, so as to prevent drill sticking accidents and prevent drill sticking. The effect is good, and there is no need to frequently start the drilling rig power machine, which is low in cost and indirectly improves the construction efficiency.

[0021] As a technical optimization solution of the utility model, a fixing ring 11 is fixedly connected to the lower end surface of the lifting coupling 1, and the fixing ring 11 is detachably connected to the drill pipe coupling 2.

[0022] In this embodiment, the fixing ring 11 makes it more convenient to assemble and disassemble the lifting handle 1 .

[0023] As a technical optimization solution of the utility model, the upper end surface of the lower cover plate 8 is fixedly connected with a center sleeve 12 , and the lower end surface of the upper cover plate 5 is provided with a limiting groove 13 matching with the center sleeve 12 .

[0024] In this embodiment, the upper end surface of the center sleeve 12 is rotatably connected to the inside of the limiting groove 13, so as to facilitate the limiting of the lower cover plate 8.

[0025] As a technical optimization solution of the utility model, a thread 10 is provided at the lower end of the outer wall of the drill rod adapter 2 .

[0026] In this embodiment, a thread 10 is provided at the lower end of the outer wall of the drill rod adapter 2 to facilitate the connection of the drill rod adapter 2 with the rope drill rod.

[0027] As a technical optimization solution of the present invention, the outer wall of the support seat 4 is fixedly connected with a plurality of convex ridges 14 distributed in an array.

[0028] In this embodiment, the friction force of the outer wall of the support base 4 is increased by the convex ridges 14, so that the support base 4 is easier to be clamped.

[0029] As a technical optimization solution of the present utility model, a clamping column 3 is fixedly connected to the outer edge of the upper end surface of the upper cover plate 5 .

[0030] In this embodiment, the upper cover plate 5 can be rotated by toggling the clamping column 3, which makes the operation more convenient.

[0031] The working principle and use process of the utility model are as follows: when coring, first connect the rope drill rod through the thread 10 at the lower end of the outer wall of the drill rod adapter 2, buckle the lifting adapter 1 with the lifting device, lift the drill tool as a whole for 1 meter, remove the clamping pressure on the hole clamp, and then slowly drop the drill tool so that the lower cover plate 8 of the movable device is firmly seated on the hole clamp, and use tools such as pipe clamps to remove the lifting adapter 1 upside down, and lower the rope salvage device from the drill rod adapter 2 into the rope drill rod to start coring. During the coring process, in a borehole with a thicker porous sandstone formation or a deeper borehole, the worker needs to clamp the support seat 4 with tools such as pipe clamps or toggle the clamping column 3 every 20 minutes to make the upper cover plate 5 drive the thrust bearing tightening ring 6 to rotate, so that the drill rod adapter 2 rotates with it, and the drill tool as a whole rotates 3 to 5 times in the hole, so as to prevent drill sticking accidents and good drill sticking prevention effects. There is no need to frequently start the drilling rig power machine, which is low in cost and indirectly improves construction efficiency.

[0032] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An activator for preventing sticking of wireline drill pipe during long-term placement in a hole, including a drill pipe sub (2), characterized in that: The upper end face of the drill pipe sub (2) is provided with a swivel sub (1). The outer wall of the drill pipe sub (2) is fixedly connected with a support base (4). The lower end face of the support base (4) is fixedly connected with an upper cover plate (5). The lower end face of the upper cover plate (5) is fixedly connected with a thrust bearing retaining ring (6). Below the thrust bearing retaining ring (6) is provided a thrust bearing loose ring (7). Between the thrust bearing retaining ring (6) and the thrust bearing loose ring (7), a plurality of bearing steel balls (9) are movably connected in an array distribution. The lower end face of the thrust bearing loose ring (7) is fixedly connected with a lower cover plate (8). The lower cover plate (8) is rotationally connected with the outer wall of the drill pipe sub (2).

2. The activator for preventing sticking of the wireline drill pipe during long-term placement in the hole according to claim 1, characterized in that: The lower end face of the swivel sub (1) is fixedly connected with a fixing ring (11). The fixing ring (11) is detachably connected with the drill pipe sub (2).

3. The movable device for preventing sticking of the wireline drill pipe due to long-term placement in the hole according to claim 1, characterized in that: The upper end face of the lower cover plate (8) is fixedly connected with a center sleeve (12). The lower end face of the upper cover plate (5) is provided with a limit groove (13) matching the center sleeve (12).

4. The movable device for preventing sticking of the wireline drill pipe during long-term placement in the hole according to claim 1, characterized in that: The outer wall of the lower end of the drill pipe sub (2) is provided with a thread (10).

5. The movable device for preventing sticking of the wireline drill pipe during long-term placement in the hole according to claim 1, characterized in that: The outer wall of the support base (4) is fixedly connected with a plurality of convex ribs (14) in an array distribution.

6. The movable device for preventing sticking of the wireline drill pipe during long-term placement in the hole according to claim 1, characterized in that: The outer edge of the upper end face of the upper cover plate (5) is fixedly connected with a clamping post (3).

Images