Hydraulic shaping and unfreezing integrated tubular column tool combination for horizontal well casing

Abstract

The utility model relates to the technical field of damaged casing pipe shaping and repairing, and discloses a horizontal well casing pipe hydraulic shaping and unfreezing integrated pipe column tool combination which comprises a hydraulic cylinder, a jar is fixedly connected to the side wall of the hydraulic cylinder, a buffering assembly is arranged on the side wall of the hydraulic cylinder, a rotating connector is fixedly connected to the bottom of the hydraulic cylinder, and a clamping groove is formed in the bottom of the rotating connector. A guide head is arranged on the side wall of the rotary connector, and a positioning assembly is arranged in the rotary connector. The buffering assembly comprises a damper, a protection plate is arranged on the side wall of the hydraulic cylinder, and a fixing frame is fixedly connected into the protection plate. According to the utility model, the rotating rod rotates under vibration to push the sliding block to slide and extrude the first spring to realize preliminary buffering, the damper absorbs residual energy, the protection plate provides protection, and the synergistic effect of multiple components effectively slows down vibration, so that the problems that the components are loosened and damaged due to impact vibration and the operation stability is influenced are solved, and the stability of the tool combination structure is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to damaged casing shaping repair technical field especially relates to a horizontal well casing hydraulic shaping and unjamming integrated pipe column tool combination. BACKGROUND

[0002] In the oil and gas exploitation process, the horizontal well casing is easily deformed, broken or jammed due to the influence of factors such as formation pressure, fluid scouring and geological movement. These problems not only affect the normal exploitation of oil and gas, but also lead to the abandonment of oil wells. Therefore, the horizontal well casing hydraulic shaping and unjamming tool emerges as the times require. The device shapes the deformed casing through hydraulic drive and realizes unjamming when the pipe column is jammed, effectively restores the normal production channel of the oil well, and has important significance for improving oil and gas recovery and reducing exploitation cost.

[0003] The traditional horizontal well casing hydraulic shaping and unjamming tool adopts the combination of traditional mechanical structure and simple hydraulic system. Its technical principle is to use the thrust generated by the hydraulic cylinder to drive the shaping component to exert external force on the casing deformation part to realize casing shaping; when the pipe column is jammed, the impact force generated by the jar is used to assist unjamming. In the whole operation process, the components of the tool are connected rigidly to transmit power.

[0004] Due to the complex and changeable downhole operation environment, the strong impact force and continuous vibration generated by the hydraulic cylinder during hydraulic shaping and unjamming operation will be directly transmitted to each component of the tool. Such impact force and vibration can easily cause the connection between components to loosen, accelerate the wear and damage of components, and affect the stability and service life of the tool. Therefore, a horizontal well casing hydraulic shaping and unjamming integrated pipe column tool combination is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a horizontal well casing hydraulic shaping and unjamming integrated pipe column tool combination, which aims to improve the problem that the impact force and vibration generated in the operation process of the prior art easily cause the components to loosen and damage and affect the stability of the operation.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A horizontal well casing hydraulic shaping and unjamming integrated pipe column tool combination, comprising a hydraulic cylinder, the side wall of the hydraulic cylinder is fixedly connected with a jar, the side wall of the hydraulic cylinder is provided with a buffer assembly, the bottom of the hydraulic cylinder is fixedly connected with a rotary joint, the side wall of the rotary joint is provided with a guide head, and the inside of the rotary joint is provided with a positioning assembly.

[0008] The buffer assembly comprises a damper, the side wall of the hydraulic cylinder is provided with a protective plate, the inside of the protective plate is fixedly connected with a fixing frame, the side wall of the fixing frame is slidably connected with a sliding block, the side wall of the fixing frame is sleeved with a first spring, the side wall of the sliding block is fixedly connected with a fixed block with the side wall of the hydraulic cylinder, the fixed blocks are rotatably connected with a rotating rod, and the damper is fixedly installed between the protective plate and the hydraulic cylinder.

[0009] As a further description of the above technical solution:

[0010] The positioning assembly comprises a clamping block, the side wall of the guide head is fixedly connected with a fixing rod, and the side wall of the fixing rod is slidably connected in the rotating joint.

[0011] As a further description of the above technical solution:

[0012] The rotating joint is fixedly connected with a connecting rod, and the side wall of the clamping block is slidably connected in the rotating joint.

[0013] As a further description of the above technical solution:

[0014] The side wall of the clamping block is slidably connected in the fixing rod, and the side wall of the clamping block is fixedly connected with a limiting block.

[0015] As a further description of the above technical solution:

[0016] The side wall of the limiting block is slidably connected in the rotating joint, and the inside of the limiting block is slidably connected with the side wall of the connecting rod.

[0017] As a further description of the above technical solution:

[0018] The rotating joint is provided with a second spring, and the rotating joint and the inside of the fixing rod are screw-connected with a screw.

[0019] As a further description of the above technical solution:

[0020] One end of the second spring is fixedly connected with the side wall of the connecting rod, and the other end of the second spring is fixedly connected in the inside of the limiting block.

[0021] As a further description of the above technical solution:

[0022] The side wall of the first spring is fixedly connected between the sliding blocks.

[0023] The utility model has the advantages of the following:

[0024] 1. The utility model discloses a buffer assembly is provided, and the impact force and vibration of hydraulic cylinder are transmitted to the buffer assembly during operation, the rotating rod rotates and pushes the sliding block to slide to the middle along the fixed frame lateral wall, and the first spring is extruded to carry out preliminary buffering, and the damper absorbs the remaining energy, and the protection board provides protection, and the vibration is slowed down in cooperation, the problem that the impact force and vibration produced during operation easily lead to the loosening of part, damage and influence operation stability is solved, and the structural stability of the tool combination is improved through the above technical scheme.

[0025] 2. The utility model discloses a guide head is installed, and the fixed rod is inserted into the swivel joint, and the clamping block is extruded and makes it to move inwards when going deep, drives the limiting block to slide along the connecting rod and compresses the second spring, after being inserted to the position, the clamping block is aligned with the recess, and the second spring rebounds and clamps the clamping block into the preliminary positioning, and finally is fixed with screw connection, the problem that the installation deviation easily appears during the installation of guide head is solved, and the accuracy of guide head installation is improved through the above technical scheme. DRAWINGS

[0026] Figure 1 It is a three-dimensional schematic view of the horizontal well casing hydraulic shaping and unjamming integrated pipe string tool combination.

[0027] Figure 2 It is a buffer structure schematic view of the horizontal well casing hydraulic shaping and unjamming integrated pipe string tool combination.

[0028] Figure 3 It is a protection board internal structure schematic view of the horizontal well casing hydraulic shaping and unjamming integrated pipe string tool combination.

[0029] Figure 4 It is a guide head structure schematic view of the horizontal well casing hydraulic shaping and unjamming integrated pipe string tool combination.

[0030] Figure 5 It is Figure 4 The enlarged view of A in the middle.

[0031] Legend:

[0032] 1, hydraulic cylinder, 2, jar, 3, swivel joint, 4, guide head, 5, protection board, 6, fixed frame, 7, sliding block, 8, first spring, 9, fixed block, 10, rotating rod, 11, damper, 12, fixed rod, 13, connecting rod, 14, clamping block, 15, limiting block, 16, second spring, 17, screw. DETAILED DESCRIPTION

[0033] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0034] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Figure 1 Figure 3 The present application provides an embodiment: a horizontal well casing hydraulic shaping and unblocking integrated pipe column tool combination, comprising a hydraulic cylinder 1, the hydraulic cylinder 1 is the core power component of the tool combination, driven by a hydraulic system, outputting axial thrust, providing power for casing shaping and unblocking operation, pushing expansion device and other components to shape the deformed casing, the side wall of the hydraulic cylinder 1 is fixedly connected with a jar 2, when the pipe column is stuck in the well, the jar 2 can generate upward or downward impact force, break the jamming state between the pipe column and the casing wall by releasing energy instantaneously, assist in unblocking, the side wall of the hydraulic cylinder 1 is provided with a buffer assembly, the bottom of the hydraulic cylinder 1 is fixedly connected with a rotary joint 3, the rotary joint 3 allows the guide head 4 to rotate relative to the hydraulic cylinder 1, during shaping operation, the guide head 4 can adapt to the irregular shape of the casing inner wall, while ensuring stable transmission of hydraulic power, the side wall of the rotary joint 3 is provided with the guide head 4, the guide head 4 is used to guide the pipe column tool combination to smoothly enter the casing, through its special shape, reducing the resistance in the running process, reducing the risk of tool sticking, and correcting the running direction of the pipe column to a certain extent, the rotary joint 3 is internally provided with a positioning assembly; the buffer assembly comprises a damper 11, the damper 11 absorbs and consumes the impact force and vibration energy generated during hydraulic operation, reduces the vibration amplitude of the hydraulic cylinder 1, avoids loosening or damage of components caused by vibration, the side wall of the hydraulic cylinder 1 is provided with a protective plate 5, the inside of the protective plate 5 is fixedly connected with a fixing frame 6, the side wall of the fixing frame 6 is slidingly connected with a sliding block 7, the side wall of the fixing frame 6 is sleeved with a first spring 8, the side wall of the sliding block 7 is fixedly connected with a fixed block 9 on the side wall of the hydraulic cylinder 1, the fixed blocks 9 are rotatably connected with a rotating rod 10, the damper 11 is fixedly installed between the protective plate 5 and the hydraulic cylinder 1, and the side wall of the first spring 8 is fixedly connected between the sliding blocks 7.

[0035] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Figure 4 Figure 5 ​​The positioning assembly comprises a clamping block 14, the clamping block 14 is embedded into the inside of the fixed rod 12 through sliding, and positioning between the guide head 4 and the rotary joint 3 is realized, the side wall of the guide head 4 is fixedly connected with the fixed rod 12, the side wall of the fixed rod 12 is slidably connected in the inside of the rotary joint 3, the inside of the rotary joint 3 is fixedly connected with a connecting rod 13, the side wall of the clamping block 14 is slidably connected in the inside of the rotary joint 3, the side wall of the clamping block 14 is slidably connected in the inside of the fixed rod 12, the side wall of the clamping block 14 is fixedly connected with a limiting block 15, the side wall of the limiting block 15 is slidably connected in the inside of the rotary joint 3, the inside of the limiting block 15 is slidably connected with the side wall of the connecting rod 13, the connecting rod 13 provides sliding guide for the limiting block 15, and the clamping block 14 and the limiting block 15 are cooperated to realize positioning and fixing of the guide head 4, the inside of the rotary joint 3 is provided with a second spring 16, the second spring 16 generates a pushing force through elastic deformation of the second spring 16, the limiting block 15 and the clamping block 14 are pushed to move, and positioning of the guide head 4 is realized, the inside of the rotary joint 3 is threadedly connected with a screw 17, the screw 17 is used for threadedly connecting the fixed rod 12 and the rotary joint 3, the guide head 4 is fixed to the side wall of the rotary joint 3, one end of the second spring 16 is fixedly connected with the side wall of the connecting rod 13, and the other end of the second spring 16 is fixedly connected in the inside of the limiting block 15.

[0036] Working principle: during operation, the impact force and vibration energy generated by the hydraulic cylinder 1 are transmitted to the buffer assembly, vibration promotes the rotating rod 10 to rotate, and then pushes the sliding block 7 to slide along the side wall of the fixed frame 6 to the middle, and the first spring 8 is extruded, the first spring 8 is preliminarily buffered, at the same time, the damper 11 absorbs and consumes the remaining energy, the protection plate 5 provides external protection, and all components are cooperated to slow down the vibration amplitude of the hydraulic cylinder 1.

[0037] When the guide head 4 is installed, the fixed rod 12 on the guide head 4 is inserted into the inside of the rotary joint 3, as the fixed rod 12 is inserted deeper, the fixed rod 12 extrudes the clamping block 14, the clamping block 14 moves to the inside of the rotary joint 3, the limiting block 15 is driven to slide along the side wall of the connecting rod 13 and compress the second spring 16, when the fixed rod 12 is completely inserted in place, the clamping block 14 is aligned with the recess hole on the fixed rod 12, at this time, the second spring 16 rebounds, pushes the clamping block 14 to be clamped into the recess hole, and the preliminary positioning of the guide head 4 is completed, finally, the fixed rod 12 and the rotary joint 3 are threadedly connected through the screw 17, and the stable fixing of the guide head 4 is realized.

[0038] Finally, it should be noted that: the above only describes preferred embodiments of the utility model, and is not used for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement is carried out to part technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A horizontal well casing hydraulic reshaping and un-sticking integrated string tool combination, comprising a hydraulic cylinder (1), characterized in that: The hydraulic cylinder (1) side wall is fixedly connected with a jar (2), the hydraulic cylinder (1) side wall is provided with a buffer assembly, the hydraulic cylinder (1) bottom is fixedly connected with a rotary joint (3), the rotary joint (3) side wall is provided with a guide head (4), the rotary joint (3) is provided with a positioning assembly inside; The buffer assembly includes a damper (11), the hydraulic cylinder (1) side wall is provided with a protective plate (5), the protective plate (5) is fixedly connected with a fixed frame (6) inside, the fixed frame (6) side wall is slidably connected with a sliding block (7), the fixed frame (6) side wall is provided with a first spring (8), the sliding block (7) side wall is fixedly connected with a fixed block (9) of the hydraulic cylinder (1), the fixed block (9) is rotatably connected with a rotating rod (10), the damper (11) is fixedly installed between the protective plate (5) and the hydraulic cylinder (1).

2. The integrated pipe string tool combination for hydraulic casing reshaping and un sticking of horizontal wells according to claim 1, characterized in that: The positioning assembly includes a clamping block (14), the guide head (4) side wall is fixedly connected with a fixed rod (12), the fixed rod (12) side wall is slidably connected inside the rotary joint (3).

3. The integrated pipe string tool combination for hydraulic casing reshaping and un sticking of horizontal wells of claim 2, wherein: The rotary joint (3) is fixedly connected with a connecting rod (13) inside, the clamping block (14) side wall is slidably connected inside the rotary joint (3).

4. The integrated pipe string tool combination of claim 3, wherein: The clamping block (14) side wall is slidably connected inside the fixed rod (12), the clamping block (14) side wall is fixedly connected with a limiting block (15).

5. The integrated casing hydraulic reshaping and un sticking tool string assembly for horizontal wells of claim 4, wherein: The limiting block (15) side wall is slidably connected inside the rotary joint (3), the limiting block (15) is slidably connected with the connecting rod (13) side wall inside.

6. The integrated casing hydraulic reshaping and un sticking tool string assembly for horizontal wells of claim 5, wherein: The rotary joint (3) is provided with a second spring (16) inside, the rotary joint (3) and the fixed rod (12) are screw-connected with a screw (17) inside.

7. The integrated casing hydraulic reshaping and un sticking tool string assembly for horizontal wells of claim 6, wherein: One end of the second spring (16) is fixedly connected with the connecting rod (13) side wall, the other end of the second spring (16) is fixedly connected inside the limiting block (15).

8. The integrated pipe string tool combination for hydraulic casing reshaping and un sticking of horizontal wells of claim 1, wherein: The first spring (8) side wall is fixedly connected between the sliding blocks (7).

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