Hydraulic steering tool
By designing a hydraulic steering tool, the tool rotation and track reversal is achieved using the pressure of the hydraulic column, the problem of difficult to achieve accurate operation in old-style commutation operation in underground operations is solved, and the success rate and reliability of underground operations are improved.
Patent Information
- Application Number
- CN202420764128.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-04-12
AI Technical Summary
In underground operations, the old-fashioned commutation operation method is difficult to achieve precise operation of deep or horizontal wells, resulting in the inability to effectively open or close the tool and the inability to accurately clean the inner wall of the pipe column.
A hydraulic steering tool is designed to use the built-in reversing channel and rotatable rotating mechanism to achieve the rotation and rail reversing of the tool using the pressure of the liquid column, and to achieve accurate cleaning of the inner wall of the pipe column and steering of the tool.
The tool achieves precise steering of the tool and efficient cleaning of the inner wall of the pipe string through hydraulic drive, improving the success rate and reliability of downhole operations.
Smart Images
Figure CN222576630U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oilfield mining equipment, in particular to a hydraulic steering tool. Background Art
[0002] When working underground, some special tools need to be switched on or off through a reversing operation. The old-fashioned reversing operation method is to lift or rotate the tubing. For deep or horizontal wells, due to the obstruction of the tubing, it is impossible to accurately predict the success of the operation. The only way to verify whether the reversal is successful is through multiple operations.
[0003] For example, when accurately cleaning downhole casing, due to scaling or waxing on the inner wall of the pipe, conventional cleaning can only achieve inner wall cleaning through free rotation of the tool, and accurate cleaning cannot be achieved. The high-efficiency steering tool solves this problem. It can use the built-in reversing channel and rely on the liquid column pressure to rotate the tool to achieve cleaning of a certain section or area of the inner wall of the pipe.
[0004] For example, in conventional salvage operations, due to the irregularity of the fallen fish or the inappropriate lying position of the fallen fish, conventional operations only involve lifting and releasing the salvage tool multiple times or flushing the fish with high-displacement liquid to achieve the best salvage position for the fallen fish. The efficient hydraulic steering tool only needs to activate the reversing function of the tool to achieve the steering of the salvage tool, making it easier for the fallen fish to enter the salvage tool, thereby achieving the success rate and reliability of the salvage. Utility Model Content
[0005] In view of the above defects or shortcomings, the purpose of the utility model is to provide a hydraulic steering tool.
[0006] In order to achieve the above purpose, the technical solution of the utility model is:
[0007] A hydraulic steering tool comprises: a core shaft, an upper joint is installed at one end of the core shaft, and a lower joint is installed at the other end, a rotating ring is installed on the upper joint, a rotatable rotating mechanism is installed on the rotating ring, an outer cylinder is installed on the rotating mechanism, and the other end of the outer cylinder is connected to the lower joint.
[0008] The rotating mechanism comprises: a rotating outer cylinder mounted on a rotating ring, a plurality of transposition grooves are provided on the core shaft, the rotating ring slides in the transposition grooves, an outer cylinder is mounted on the rotating outer cylinder, and a spring is installed between the outer cylinder and the core shaft.
[0009] The rotating outer cylinder is fixedly mounted on the rotating ring by a second screw, a movement gap is arranged between the rotating ring and the rotating outer cylinder, and a displacement pin is installed at the end of the movement gap.
[0010] A second O-type sealing ring, a third O-type sealing ring and a rubber dustproof sealing ring are arranged between the rotating outer cylinder and the core shaft.
[0011] A retaining ring is also installed in the outer cylinder, and the spring is connected to the retaining ring.
[0012] A one-way thrust ball bearing is installed at the front end of the retaining ring.
[0013] The retaining ring is fixedly mounted on the core shaft by a third screw.
[0014] The upper joint is fixedly mounted on the core shaft by a first screw, and a first O-ring is installed between the upper joint and the core shaft.
[0015] A fourth O-ring is installed between the lower joint and the core shaft.
[0016] A fifth O-ring is installed on the outer wall of the lower joint.
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] The utility model provides a hydraulic steering tool. Due to the provision of a rotatable rotating mechanism, when the fallen fish is irregular or the fallen fish is not lying in an appropriate position, the utility model only needs to activate the reversing function of the tool to realize the steering of the salvage tool, so that the fallen fish can enter the salvage tool more conveniently, thereby achieving the success rate and reliability of salvage. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the structure of the recyclable screw support fixer of the utility model;
[0020] Figure 2 The utility model is a schematic diagram of the surface structure of the mandrel of the recyclable screw support fixer.
[0021] In the figure, 1, upper joint; 2, rotating ring; 3, rotating outer cylinder; 4, core shaft; 5 outer cylinder; 6, retaining ring; 7, lower joint; 8, transposition pin; 9, spring; 10, first O-ring; 11, second O-ring sealing ring; 12, third O-ring sealing ring; 13, fourth O-ring; 14, fifth O-ring; 15, rubber dustproof sealing ring; 16, first screw; 17, second screw; 18, third screw; 19, one-way thrust ball bearing; 41, transposition groove. DETAILED DESCRIPTION
[0022] The utility model will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.
[0023] like Figure 1 As shown, the utility model provides a hydraulic steering tool, including: a core shaft 4, an upper joint 1 is installed at one end of the core shaft 4, and a lower joint 7 is installed at the other end, a rotating ring 2 is installed on the upper joint 1, a rotatable rotating mechanism is installed on the rotating ring 2, an outer cylinder 5 is installed on the rotating mechanism, and the other end of the outer cylinder 5 is connected to the lower joint.
[0024] Specifically, Figure 2 As shown, the rotating mechanism includes: a rotating outer cylinder 3 mounted on the rotating ring 2, an outer cylinder 5 mounted on the rotating outer cylinder 3, a plurality of transposition grooves 41 are provided on the core shaft 4, the rotating ring 2 slides in the transposition grooves 41, a spring 9 is installed between the outer cylinder 5 and the core shaft 4; the rotating outer cylinder 3 is fixedly mounted on the rotating ring 2 by a second screw 17, a movement gap is provided between the rotating ring 2 and the rotating outer cylinder 3, and a transposition pin 8 is installed at the end of the movement gap. Preferably, a second O-ring 11, a third O-ring 12, and a rubber dustproof seal 15 are provided between the rotating outer cylinder 3 and the core shaft 4.
[0025] Further, a retaining ring 6 is installed in the outer tube 5, and the spring 9 is connected to the retaining ring 6. A one-way thrust ball bearing 19 is installed at the front end of the retaining ring 6 to reduce friction resistance when tightening the spring.
[0026] In addition, the retaining ring 6 is fixedly mounted on the core shaft 4 by a third screw 17, the upper joint 1 is fixedly mounted on the core shaft 4 by a first screw 16, and a first O-ring 10 is installed between the upper joint 1 and the core shaft 4, a fourth O-ring 13 is installed between the lower joint 7 and the core shaft 4, and a fifth O-ring 14 is installed on the outer wall of the lower joint 7.
[0027] The working process of the utility model is:
[0028] Liquid enters the sealing chamber through the core shaft hole. A reversing groove is designed on the core shaft. Under the action of pressure, the rotating ring (2), the rotating outer cylinder (3) and the transposition pin (8) are driven downward. During the downward process, the spring (9) is compressed. After the pressure is released, the rotating ring (2), the rotating outer cylinder (3) and the transposition pin (8) are moved upward under the action of the spring force, thereby realizing the track reversing function.
[0029] It is obvious to those skilled in the art that the above-mentioned specific examples are only preferred schemes of the present invention. Therefore, the improvements and changes that may be made by those skilled in the art to certain parts of the present invention still reflect the principles of the present invention and achieve the purpose of the present invention, and all belong to the scope of protection of the present invention.
Claims
1. A hydraulic steering tool, characterized in that: include: A core shaft (4), wherein an upper joint (1) is installed at one end of the core shaft (4), and a lower joint (7) is installed at the other end; a rotating ring (2) is installed on the upper joint (1), a rotatable rotating mechanism is installed on the rotating ring (2), an outer cylinder (5) is installed on the rotating mechanism, and the other end of the outer cylinder (5) is connected to the lower joint.
2. The hydraulic steering tool according to claim 1, characterized in that: The rotating mechanism comprises: a rotating outer cylinder (3) mounted on a rotating ring (2), an outer cylinder (5) mounted on the rotating outer cylinder (3), a plurality of transposition grooves (41) formed on the core shaft (4), the rotating ring (2) sliding in the transposition grooves (41), and a spring (9) mounted between the outer cylinder (5) and the core shaft (4).
3. The hydraulic steering tool according to claim 2, characterized in that: The rotating outer cylinder (3) is fixedly mounted on the rotating ring (2) by means of a second screw (17); a movement gap is provided between the rotating ring (2) and the rotating outer cylinder (3); a displacement pin (8) is installed at the end of the movement gap.
4. The hydraulic steering tool according to claim 3, characterized in that: A second O-type sealing ring (11), a third O-type sealing ring (12) and a rubber dustproof sealing ring (15) are arranged between the rotating outer cylinder (3) and the core shaft (4).
5. The hydraulic steering tool according to claim 2, characterized in that: A retaining ring (6) is also installed inside the outer cylinder (5), and the spring (9) is connected to the retaining ring (6).
6. The hydraulic steering tool according to claim 5, characterized in that: A one-way thrust ball bearing (19) is installed at the front end of the retaining ring (6).
7. The hydraulic steering tool according to claim 6, characterized in that: The retaining ring (6) is fixedly mounted on the core shaft (4) by means of a third screw (18).
8. The hydraulic steering tool according to claim 1, characterized in that: The upper joint (1) is fixedly mounted on the core shaft (4) by means of a first screw (16), and a first O-ring (10) is installed between the upper joint (1) and the core shaft (4).
9. The hydraulic steering tool according to claim 1, characterized in that: A fourth O-ring (13) is installed between the lower joint (7) and the core shaft (4).
10. The hydraulic steering tool according to claim 1, characterized in that: A fifth O-ring (14) is installed on the outer wall of the lower joint (7).