A petroleum drilling pipe guiding device

Abstract

This utility model relates to the field of oil drilling technology, specifically to an oil drilling pipe guide device. It addresses the technical problem of existing technologies requiring tripping and replacement of bent housing angles, making downhole adjustment impossible. The device includes: drill pipe, annular groove, fluid distribution hole, return hole, positioning cylinder, stepped groove, positioning wing, spring, fluid inlet, fluid outlet, and solenoid valve. During drilling, the positioning wing contacts the well wall, preventing the positioning cylinder from rotating with the rotatably connected drill pipe. When a change of direction is required, a signal is sent from the surface to control the corresponding solenoid valve to open, increasing the flow and pressure in the corresponding stepped groove. This causes the positioning wing to overcome the spring tension and slide out. The slid-out positioning wing engages with the well wall, pushing the drilling direction in the opposite direction to the sliding direction, thus achieving downhole adjustment without the need for a bent housing.

Description

Technical Field

[0001] This utility model relates to the field of oil drilling technology, specifically to an oil drilling pipe guide device. Background Technology

[0002] Drilling is an essential part of oil extraction, characterized by its technology-intensive nature, high investment, high risk, and significant challenges. As oil exploration and development gradually expands into deeper, more complex formations and low-permeability reservoirs, technologies such as extended reach drilling and horizontal well drilling place higher demands on wellbore trajectories. This necessitates precise control of the tubing's movement by directional drilling devices to expose more reservoir layers and improve oil recovery efficiency.

[0003] Traditional oil drilling tool guide devices have a simple structure, with a pre-made curved shell installed between the drill collar and the drill bit. The angle of the curved shell needs to be replaced when the drill string is pulled out, and it cannot be adjusted downhole. Operators need to frequently adjust the orientation, which is inefficient and labor-intensive. Utility Model Content

[0004] This invention addresses the technical problem of existing technologies where the angle of the bent casing needs to be replaced during drilling and cannot be adjusted downhole, by providing an oil drilling tool guide device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a guide device for oil drilling pipes, comprising: a drill pipe, an annular groove formed on the outer wall of the drill pipe, a liquid distribution hole formed at the upper part of the drill pipe and a return hole formed at the lower part within the annular groove, the liquid distribution hole and the return hole being evenly distributed around the circumference, a positioning cylinder rotatably connected to the outside of the annular groove, stepped grooves evenly distributed around the outer wall of the positioning cylinder, a positioning wing slidably connected within the stepped groove, the inner end of the positioning wing being connected to the inner wall of the stepped groove via a spring, the liquid distribution hole being connected to the stepped groove via an inlet channel, the return hole being connected to the stepped groove via a drain channel, a solenoid valve being connected within the inlet channel, and a battery being connected within the positioning cylinder, the battery supplying power to the solenoid valve.

[0006] Preferably, the upper part of the positioning cylinder has a battery slot, a battery is connected inside the battery slot, and a sealed outer shell is connected to the outside of the battery slot.

[0007] Preferably, the solenoid valve model is Danfoss EV210A two-position two-way solenoid valve.

[0008] Compared with the prior art, the beneficial effects of this utility model are:

[0009] During drilling, the positioning wing contacts the well wall, preventing the positioning cylinder from rotating with the drill pipe. When a change of direction is required, a signal is sent from the ground to control the corresponding solenoid valve to open, increasing the flow and pressure in the corresponding stepped groove. This causes the positioning wing to overcome the spring tension and slide out. The slid-out positioning wing engages with the well wall, pushing the drilling direction in the opposite direction to the sliding direction. This achieves downhole adjustment without the need for a curved shell. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0011] Figure 2 This is a schematic cross-sectional view of the structure of this utility model;

[0012] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0013] Figure 4 This is a schematic diagram of the structure of the present invention. Figure 3 .

[0014] In the diagram: 1. Drill rod; 2. Annular groove; 3. Liquid distribution hole; 4. Return hole; 5. Positioning cylinder; 6. Stepped groove; 7. Positioning wing; 8. Spring; 9. Liquid inlet channel; 10. Liquid outlet channel; 11. Solenoid valve; 12. Battery compartment; 13. Battery. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] The rotary connection described in this device refers to the axial fixation of the bearing by mounting the bearing on the shaft, with a spring retaining ring groove provided on the shaft or shaft hole, and the rotation achieved by locking the elastic retaining ring in the retaining ring groove; the hinge connection refers to the connection method that allows movement through connecting parts such as hinges, pins, and short shafts.

[0017] The present invention will now be described in detail with reference to the accompanying drawings.

[0018] The following is in conjunction with the appendix Figure 1-4 This embodiment describes a guide device for oil drilling pipes, comprising: a drill pipe 1, an annular groove 2 on the outer wall of the drill pipe 1, a liquid distribution hole 3 at the upper part and a return hole 4 at the lower part of the drill pipe 1 within the annular groove 2, the liquid distribution hole 3 and the return hole 4 being evenly distributed around the circumference, a positioning cylinder 5 rotatably connected to the outside of the annular groove 2, a stepped groove 6 evenly distributed around the outer wall of the positioning cylinder 5, a positioning wing 7 slidably connected within the stepped groove 6, the inner end of the positioning wing 7 being connected to the inner wall of the stepped groove 6 via a spring 8, the liquid distribution hole 3 being connected to the stepped groove 6 via a liquid inlet channel 9, the return hole 4 being connected to the stepped groove 6 via a liquid outlet channel 10, a solenoid valve 11 being connected within the liquid inlet channel 9, and a battery being connected within the positioning cylinder 5, the battery supplying power to the solenoid valve 11.

[0019] During drilling, the positioning wing 7 contacts the well wall, preventing the positioning cylinder 5 from rotating with the drill rod 1, and also plays a role in assisting in straightening. When a change of direction is required, the ground sends a signal to control the corresponding solenoid valve 11 to open, which increases the flow and pressure in the corresponding stepped groove 6. The positioning wing 7 overcomes the tension of the spring 8 and slides out. The slid-out positioning wing 7 cooperates with the well wall to push the drilling direction to the opposite direction of the sliding direction, thus achieving downhole adjustment without the need to install a curved shell.

[0020] The upper part of the positioning cylinder 5 has a battery slot 12, a battery 13 is connected inside the battery slot 12, and a sealed outer shell 14 is connected to the outside of the battery slot 12.

[0021] The battery can be easily removed and reinstalled by removing the sealed outer casing 14, and charging is also convenient.

[0022] The solenoid valve model 11 uses the Danfoss EV210A two-position two-way solenoid valve.

[0023] Two-position, two-way solenoid valves can easily meet the opening and closing requirements.

[0024] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A guiding device for oil drilling pipes, characterized in that: include: The drill rod (1) has an annular groove (2) on its outer wall. The upper part of the drill rod (1) in the annular groove (2) has a liquid distribution hole (3) and the lower part has a return hole (4). The liquid distribution hole (3) and the return hole (4) are evenly distributed around the circumference. The positioning cylinder (5) is rotatably connected to the outside of the annular groove (2). The outer wall of the positioning cylinder (5) has a stepped groove (6) evenly distributed around the circumference. The positioning wing (7) is slidably connected inside the stepped groove (6). The inner end of the positioning wing (7) is connected to the inner wall of the stepped groove (6) through a spring (8). The liquid distribution hole (3) is connected to the stepped groove (6) through the liquid inlet channel (9). The return hole (4) is connected to the stepped groove (6) through the liquid outlet channel (10). The liquid inlet channel (9) is connected to a solenoid valve (11). The positioning cylinder (5) is connected to a battery. The battery powers the solenoid valve (11).

2. The oil drilling pipe guiding device according to claim 1, characterized in that: The positioning cylinder (5) has a battery slot (12) on its upper part, a battery (13) is connected inside the battery slot (12), and a sealed outer shell (14) is connected outside the battery slot (12).

3. The oil drilling pipe guiding device according to claim 1, characterized in that: The solenoid valve (11) is a Danfoss EV210A two-position two-way solenoid valve.

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