Fluid operated directional

Abstract

This utility model discloses a hydraulically controlled indexing tool, comprising: a spring spindle and an anti-torsion spindle connected to each other; a piston joint is mounted on the spring spindle, and a pushing mechanism is mounted at the end of the spring spindle; an anti-torsion outer cylinder is mounted on the anti-torsion spindle, and a rotating mechanism is mounted at the end of the anti-torsion spindle; a lower joint is mounted on the rotating mechanism, and a throttling nozzle is installed inside the lower joint. By increasing the flow rate, the tool is pressurized. When the required pressure is reached, the piston moves downward, driving the lower spindle to rotate, converting linear motion into torque. The rotation of the hydraulically controlled indexing tool depends on the distance the piston moves, ensuring stepless rotation and thus enabling the indexing tool to have higher torque.

Description

Technical Field

[0001] This utility model relates to the field of petroleum equipment technology, and in particular to a hydraulically controlled orienting device. Background Technology

[0002] Sidetracking directional drilling is a technique that involves drilling laterally within a wellbore, also known as lateral drilling. By changing the direction and angle of the wellbore trajectory, sidetracking directional drilling can cause significant displacement of the wellbore within the oil-bearing formation, thereby increasing the contact area between the bottom of the well and the oil layer. This drilling method is particularly suitable for reservoirs with low permeability, low porosity, and high viscosity, effectively improving oil and gas recovery rates. Furthermore, sidetracking directional drilling can also probe multiple oil and gas layers within the same geological structure, improving the efficiency of oil and gas exploration and development.

[0003] Existing directional drilling tools typically use electrical signals. These tools require cable connections to transmit signals via the surface to achieve angle deflection. However, electrical signal transmission is subject to errors and delays. Furthermore, when used in deep wells, the high-temperature fluids inside the well make the equipment extremely unstable and subject to interference, making it impossible to accurately determine the deflection angle. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies, the purpose of this utility model is to provide a liquid-controlled orienting device.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A hydraulically controlled orienting device includes: a spring spindle and an anti-torsion spindle connected to each other; a pushing mechanism is installed at the end of the spring spindle, and a piston joint is installed on the pushing mechanism; an anti-torsion outer cylinder is installed on the anti-torsion spindle; a rotating mechanism is installed at the end of the anti-torsion spindle; a lower connector is installed on the rotating mechanism; and a throttle nozzle is installed inside the lower connector.

[0007] The rotating mechanism includes: an external ratchet connected to an anti-torsion mandrel; an internal ratchet mounted on the external ratchet via a rotating spline groove; a clutch joint installed between the internal ratchet and the lower connector; a first disc spring mounted on one end of the clutch joint and a second disc spring mounted on the other end; a first one-way bearing mounted on the side of the first disc spring and a one-way thrust ball bearing mounted on the side of the second disc spring; a rotating outer cylinder connected to the side of the one-way thrust ball bearing; and a second one-way bearing mounted on the end of the rotating outer cylinder.

[0008] An oil injection plug is provided on the rotating outer cylinder; a second support seal and a second O-ring are installed between the inner ratchet and the outer ratchet.

[0009] A locking block is installed inside the one-way thrust ball bearing, and a first O-ring seal is installed on the locking block.

[0010] One-way bearings are installed at both ends of the clutch joint, and one-way bearing washers are provided on the one-way bearings; first and second friction rings are installed at the contact ends of the inner ratchet and the anti-torsion outer cylinder.

[0011] A type A flat key is provided between the lower connector and the clutch connector; a fourth support seal and a fifth O-ring are installed between the lower connector and the rotating outer cylinder.

[0012] The pushing mechanism includes: a piston mounted on the end of a spring spindle; a spring cylinder mounted on the spring spindle; a spring installed between the spring cylinder and the spring spindle; and an upper connector connected to the end of the piston connector.

[0013] The piston is equipped with a first support seal and a third O-ring.

[0014] The spring mandrel and the anti-torsion mandrel are connected by a mandrel connector, and a sealing connector is installed on the outside of the mandrel connector.

[0015] A sleeve joint is installed between the anti-torsion outer cylinder and the sealing joint, and a third support seal and a fourth O-ring are installed between the sealing joint and the spring spindle.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention provides a hydraulically controlled orienting device that increases the flow rate to pressurize the tool. When the required pressure is reached, the piston moves downward, driving the spring spindle to rotate the anti-torsion spindle, thus converting linear motion into torque. The rotation of the hydraulically controlled orienting device depends on the distance the piston moves, ensuring stepless rotation and thus enabling the indexing tool to have higher torque. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the rotating outer cylinder structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the anti-torsion mandrel structure of this utility model;

[0020] Figure 3 Schematic diagram of the external ratchet structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal ratchet structure of this utility model.

[0022] In the diagram, 1—upper connector; 2—piston connector; 3—spring sleeve; 4—piston; 5—spring spindle; 6—sealing connector; 7—sleeve connector; 8—spindle connector; 9—anti-torsion outer cylinder; 10—anti-torsion spindle; 11—external ratchet; 12—internal ratchet; 13—locking block; 14—outer cylinder; 15—rotating outer cylinder; 16—lower connector; 17—clutch connector; 18—first one-way bearing washer ring; 19—second disc spring; 20—spring; 21—throttle nozzle; 22—oil filler plug; 23—first friction ring; 24—second friction ring. 25—Type A flat key; 26—Hex socket screw; 27—Fifth O-ring seal; 28—First support seal; 29—Third O-ring seal; 30—Third support seal; 31—Fourth O-ring seal; 32—Second support seal; 33—Second O-ring seal; 34—One-way thrust ball bearing; 35—First one-way bearing; 36—Fourth support seal; 37—Fifth O-ring seal; 38—First disc spring; 39—Second one-way bearing washer; 40—Second one-way bearing; 41—First O-ring seal. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0024] like Figure 1 , 2 This utility model provides a hydraulically controlled orienting device, comprising: a spring spindle 5 and an anti-torsion spindle 10 connected to each other; a pushing mechanism is installed at the end of the spring spindle 5, and a piston joint 2 is installed on the pushing mechanism; an anti-torsion outer cylinder 9 is installed on the anti-torsion spindle 10, and a rotating mechanism is installed at the end of the anti-torsion spindle 10; a lower joint 16 is installed on the rotating mechanism, and a throttle nozzle 21 is installed inside the lower joint 16.

[0025] Specifically, the rotating mechanism includes: an external ratchet 11 connected to the anti-torsion spindle 10, wherein an internal ratchet 12 is mounted on the external ratchet 11 via a rotating spline groove. Figure 3 , 4 As shown; an outer cylinder 14 is installed outside the inner ratchet 12, and a clutch joint 17 is installed between the inner ratchet 12 and the lower connector 16. A first disc spring 38 is installed at one end of the clutch joint 17, and a second disc spring 19 is installed at the other end. A first one-way bearing 35 is installed on the side of the first disc spring 38, and a one-way thrust ball bearing 34 is installed on the side of the second disc spring 19. A rotating outer cylinder 15 is connected to the side of the one-way thrust ball bearing 34, and a second one-way bearing 40 is installed at the end of the rotating outer cylinder 15.

[0026] In addition, an oil plug 22 is provided on the rotating outer cylinder 15; a second support seal 32 and a second O-ring seal 33 are installed between the inner ratchet 12 and the outer ratchet 11. A locking block 13 is installed inside the one-way thrust ball bearing 34, and a first O-ring seal 41 is installed on the locking block 13.

[0027] In this utility model, one-way bearings are respectively installed at both ends of the clutch joint 17, and one-way bearing washers are provided on the one-way bearings. Specifically, a first one-way bearing 35 is provided at one end of the clutch joint 17, and a first one-way bearing washer 18 is provided inside the first one-way bearing 35; a second one-way bearing 40 is provided at the other end, and a second one-way bearing washer 39 is provided inside the second one-way bearing 40; a first and a second friction ring 23 and 24 are installed at the contact end of the inner ratchet 12 and the anti-torsion outer cylinder 9.

[0028] To secure the various components, an A-type flat key 25 is provided between the lower connector 16 and the clutch connector 17 for engagement; a fourth support seal 36 and a fifth O-ring seal 37 are installed between the lower connector 16 and the rotating outer cylinder 15.

[0029] Furthermore, the actuating mechanism includes: a piston 4 mounted on the end of the spring spindle 5, with a piston connector 2 mounted on the piston 4; a spring sleeve 3 mounted on the spring spindle 5, with a spring 20 installed between the spring sleeve 3 and the spring spindle 5; and an upper connector 1 connected to the other end of the spring sleeve 3. A first support seal 28 and a third O-ring seal 29 are mounted on the piston 4. A fifth O-ring seal 27 is installed between the upper connector 1 and the spring sleeve 3. The spring spindle 5 and the anti-torsion spindle 10 are connected via a spindle connector 8, with a sealing connector 6 installed on the outside of the spindle connector 8. The spring sleeve 3 and the sealing connector 6 are locked together by an internal hexagon screw 26.

[0030] Preferably, a sleeve joint 7 is installed between the anti-torsion outer cylinder 9 and the sealing joint 6, and a third support seal 30 and a fourth O-ring seal 31 are installed between the sealing joint 6 and the spring spindle 5.

[0031] The purpose of this invention is to provide a series of products with higher torque than existing indexing tools of the same size on the market. By increasing the flow rate, the tool is pressurized, typically within the range of 1000 PSI. Once this pressure is reached, the piston moves downwards, driving the lower mandrel to rotate, converting linear motion into torque. The rotation of the hydraulically controlled orienting device depends on the distance the piston moves, ensuring stepless rotation. The lower mandrel typically rotates a maximum of 42 ± 3 ° in a single cycle. During coiled tubing drilling operations, the rotation angle will be monitored using MWD.

[0032] Working principle of this utility model:

[0033] During operation, a large volume of liquid is throttled through the throttle nozzle 21, pushing the piston 4, compressing the spring 20, and causing the spring spindle 5 and anti-torsion spindle 10 to move forward. The anti-torsion spindle 10 and the anti-torsion outer cylinder 9 are connected, so the spindle can only move back and forth and cannot rotate. The outer ratchet 11 connected to the anti-torsion spindle 10 engages with the inner ratchet 12 through a rotating spline groove. The piston thrust causes the inner ratchet 12 to move downwards, compressing the second disc spring 19 and simultaneously pushing open the clutch connector 17, causing it to rotate. At this time, the first one-way bearing 35 installed inside the inner ratchet also rotates, causing the lower connector 16 to rotate and deflect at an angle. When the pump stops and pressure is released, the spring rebounds, causing the spring spindle 5 and anti-torsion spindle 10 to rebound as well. The inner ratchet 12 disengages from the outer ratchet 11. Since the first one-way bearing 35 and the second one-way bearing 40 can only rotate in one direction, the two sets of one-way bearings lock the inner ratchet 12 and the rotating outer cylinder 15, preventing the lower connector from rotating. By repeating this process, the angle of the tool can be adjusted.

[0034] It will be apparent to those skilled in the art that the above specific examples are merely preferred embodiments of this utility model. Therefore, any improvements or modifications that those skilled in the art may make to certain parts of this utility model still embody the principles of this utility model and achieve its purpose, and all fall within the scope of protection of this utility model.

Claims

1. A hydraulically controlled orienteering device, characterized in that, include: A spring spindle (5) and an anti-torsion spindle (10) are connected. A pushing mechanism is installed at the end of the spring spindle (5), and a piston joint (2) is installed on the pushing mechanism. An anti-torsion outer cylinder (9) is installed on the anti-torsion spindle (10), and a rotating mechanism is installed at the end of the anti-torsion spindle (10). A lower joint (16) is installed on the rotating mechanism, and a throttle nozzle (21) is installed inside the lower joint (16).

2. The hydraulically controlled orienteering device according to claim 1, characterized in that, The rotating mechanism includes: an external ratchet (11) connected to an anti-torsion spindle (10), an internal ratchet (12) mounted on the external ratchet (11) via a rotating spline groove, a clutch joint (17) installed between the internal ratchet (12) and the lower connector (16), a first disc spring (38) mounted on one end of the clutch joint (17), a second disc spring (19) mounted on the other end, a first one-way bearing (35) mounted on the side of the first disc spring (38), and a one-way thrust ball bearing (34) mounted on the side of the second disc spring (19); a rotating outer cylinder (15) connected to the side of the one-way thrust ball bearing (34), and a second one-way bearing (40) mounted on the end of the rotating outer cylinder (15).

3. The hydraulically controlled orienteering device according to claim 2, characterized in that, An oil plug (22) is provided on the rotating outer cylinder (15); a second support seal (32) and a second O-ring seal (33) are installed between the inner ratchet (12) and the outer ratchet (11).

4. The hydraulically controlled orienteering device according to claim 2, characterized in that, A locking block (13) is installed inside the one-way thrust ball bearing (34), and a first O-ring seal (41) is installed on the locking block (13).

5. The hydraulically controlled orienteering device according to claim 2, characterized in that, One-way bearings are installed at both ends of the clutch joint (17), and one-way bearing washers are provided on the one-way bearings; the first and second friction rings (23, 24) are installed at the contact ends of the inner ratchet (12) and the anti-torsion outer cylinder (9).

6. The hydraulically controlled orienteering device according to claim 2, characterized in that, An A-type flat key (25) is provided between the lower connector (16) and the clutch connector (17); a fourth support seal (36) and a fifth O-ring seal (37) are installed between the lower connector (16) and the rotating outer cylinder (15).

7. The hydraulically controlled orienteering device according to claim 1 or 2, characterized in that, The pushing mechanism includes: a piston (4) installed at the end of the spring spindle (5), and a piston connector (2) installed on the piston (4); a spring cylinder (3) is installed on the spring spindle (5), and a spring (20) is installed between the spring cylinder (3) and the spring spindle (5); and an upper connector (1) is connected to the end of the spring cylinder (3).

8. The hydraulically controlled orienteering device according to claim 7, characterized in that, The piston (4) is equipped with a first support seal (28) and a third O-ring seal (29).

9. The hydraulically controlled orienteering device according to claim 1, characterized in that, The spring mandrel (5) and the anti-torsion mandrel (10) are connected by a mandrel connector (8), and a sealing connector (6) is installed on the outside of the mandrel connector (8).

10. The hydraulically controlled orienteering device according to claim 9, characterized in that, A sleeve joint (7) is installed between the anti-torsion outer cylinder (9) and the sealing joint (6), and a third support seal (30) and a fourth O-ring seal (31) are installed between the sealing joint (6) and the spring spindle (5).

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