Rapid positioning assembly of retainer

Abstract

The utility model discloses a quick positioning assembly of a retainer, which belongs to the technical field of retainer positioning, and comprises a positioning mechanism mounted on a retainer main body, the positioning mechanism comprises a plurality of mounting plates distributed in an annular array, the outer wall of each mounting plate is provided with a storage groove, a positioning wheel is arranged in each storage groove, and the positioning wheels are arranged on the mounting plates. A supporting rod is rotationally connected to the positioning wheel, a rotating rod fixedly penetrates through the bottom of the supporting rod, the two ends of the rotating rod are rotationally connected with the inner wall of the storage groove, the outer wall of the rotating rod is fixedly sleeved with a circular plate, and a volute spiral spring is connected between the circular plate and the storage groove. The positioning wheels tightly abut against the inner wall of the pipeline, on one hand, friction force can be effectively reduced, the bearing device body can quickly and stably move to a positioning position for blocking, on the other hand, the bearing device body can be assisted to be positioned at the center position in the pipeline to a certain degree, and the sealing effect is improved. Therefore, the stress uniformity of the retaining device main body during plugging can be ensured, and the plugging effect can be remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the positioning technical field of the retaining device belongs to a quick positioning assembly of retaining device. BACKGROUND

[0002] In the middle and later stages of oilfield development, due to the corrosion and perforation of casing above the cement return height of oil well, leakage occurs in the cementing section, which causes the formation water of the adjacent high-pressure water layer of the oil layer to flow into the wellbore, or the energy of the oil layer decreases, causing intercommunication between the adjacent high-pressure water layer and the oil layer, resulting in an increase in water content in the oil well or water flooding of the oil layer, which brings serious difficulties to the development of oilfields. For this situation, the conventional treatment method is to first shoot an engineering hole in the high-pressure water layer, then perform chemical plugging on the high-pressure water layer, mainly cement slurry plugging, and then drill the cement plug after the plugging is completed, and then restore the exploitation of the oil layer. The existing retaining device, when in use, is connected with a mechanical setting tool, then is lowered to a predetermined position through a tubing, is raised, rotated, and lowered again to release the upper slips, the tubing is pulled to set the cement retaining device, is rotated to release the hand, is inserted into the mechanical setting tool again to open the valve body, and then cement squeezing operation is performed. The retaining device is connected and lowered through the tubing, without the need for other additional equipment, and a series of operations such as setting and squeezing can be completed with one trip of the tubing, reducing the construction process and improving the operation efficiency.

[0003] For example, the existing technology with the publication number CN218624167U discloses a cement retaining device, which is provided with an upper connector on one side, a lower connector on the other side of the cement retaining device main body, a connecting groove is formed at the opening of one side of the upper connector and the lower connector, a clamping block is installed at the middle part of the threaded connecting sleeve, the clamping block is installed on the outer wall of the cement retaining device main body, the upper connector and the lower connector, and the buffer anti-corrosion particles are evenly covered on the inner wall of the lower connector. The device is of a split structure, which is low in replacement cost and convenient to use.

[0004] However, the above-mentioned existing technology still has the following problems when in use: in different pipeline internal environments, the retaining device is prone to friction with the inner wall of the pipeline when traveling, which will cause the retaining device to deviate, thereby affecting the positioning accuracy, and the deviation of positioning will affect the uniformity of stress during subsequent plugging of the retaining device, ultimately reducing the plugging effect. Based on this, the utility model provides a quick positioning assembly of retaining device. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides a quick positioning assembly of retaining device to solve the problem that the retaining device is prone to friction with the inner wall of the pipeline, which will cause the retaining device to deviate, affecting the positioning accuracy and the plugging effect in the prior art.

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

[0007] The application discloses a quick positioning assembly of a retaining device, which comprises a positioning mechanism installed on a retaining device body, the positioning mechanism comprises a plurality of installation plates arranged in an annular array, an accommodation groove is formed in the outer wall of each installation plate, a positioning wheel is arranged in the accommodation groove, a supporting rod is rotatably connected to the positioning wheel, a rotating rod is fixedly penetrated through the bottom of the supporting rod, and the two ends of the rotating rod are rotatably connected with the inner wall of the accommodation groove, a circular plate is fixedly sleeved on the outer wall of the rotating rod, a volute spring is connected between the circular plate and the accommodation groove, and a shooting mechanism is detachably connected to the top inner wall of each accommodation groove.

[0008] Further, the shooting mechanism comprises a fixed plate, a wireless camera for quick positioning is fixedly arranged on the outer wall of the fixed plate, the wireless camera is used for shooting the picture between the retaining device body and the pipeline in real time, so that the staff can know the running state of the retaining device body in real time, and the positioning speed and the installation efficiency of the retaining device body can be ensured.

[0009] Further, a fixing groove is formed in the top of the front end of each installation plate, the fixed plate is detachably fixed in the fixing groove, and the fixed plate is arranged above the positioning wheel, so that the normal overturning use of the positioning wheel can be avoided.

[0010] Further, a torsion spring is fixedly arranged on the outer wall of each supporting rod, one end of the torsion spring is abutted with the inner wall of the accommodation groove, and when the supporting rod rotates, the supporting rod can be kept stable under the elastic force of the torsion spring during rotation.

[0011] Further, a fastening bolt one is threadedly connected to each supporting rod, a threaded hole matched with the fastening bolt one is formed in the inner wall of each accommodation groove, and the fastening bolt one is threadedly connected with the threaded hole, so that the supporting rod can be fixed by cooperation of the fastening bolt one and the threaded hole during carrying and transporting the retaining device body, and the external protrusion of the supporting rod can be avoided to affect the carrying and placing of the retaining device body.

[0012] Further, an embedding groove is formed in the inner wall of each accommodation groove, the embedding groove is arranged below the threaded hole, a battery compartment is fixedly arranged in the embedding groove, and a charging battery is arranged in the battery compartment, so that the camera can be provided with electric energy by the charging battery, wiring is not needed, and portability can be improved.

[0013] Further, an upper joint and a lower joint are respectively arranged on the top and the bottom of the retaining device body, the outer wall surface of the lower joint is processed with installation grooves with the same number as the installation plates, and the installation plates are inserted into the installation grooves and accommodated in the installation grooves, so that the stability of the installation plates can be improved.

[0014] Further, the lower joint outer wall surface is provided with fixing holes communicated with the mounting grooves, and two fastening bolts are threadedly connected in each fixing hole, so that the lower joint is detachably fixed with the mounting plate through the fastening bolts.

[0015] The utility model has the advantages of:

[0016] 1. The utility model discloses a plurality of positioning wheels are arranged on the lower joint of the retaining device main body bottom, and the positioning wheel is automatically closely abutted with the inner wall of the pipeline under the elastic force cooperation of the vortex spring and the torsion spring, can effectively reduce friction on one hand, makes the retaining device main body fast, stably moves to the positioning position and blocks, on the other hand, can assist the retaining device main body to be positioned at the center position in the pipeline to a certain extent, so that the stress uniformity of the retaining device main body can be ensured when blocking, and then the blocking effect can be obviously improved.

[0017] 2. The wireless camera in the mounting plate can shoot the picture between the retaining device main body and the pipeline in real time, and the working personnel can grasp the advancing state of the retaining device main body at any time with the help of the shot picture, and the retaining device main body can be quickly positioned according to the picture, and the installation efficiency of the retaining device main body is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other implementation drawings can be obtained without creative labor on the basis of the provided drawings.

[0019] The structure, proportion, size and the like shown in the specification are only used to cooperate with the content disclosed in the specification, for understanding and reading by those skilled in the art, and are not used to limit the limiting conditions that can be implemented by the utility model, so they do not have the substantial meaning of technology, any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that can be produced by the utility model, should still fall within the scope covered by the technical content disclosed by the utility model.

[0020] Figure 1 The utility model provides whole structure schematic view;

[0021] Figure 2 The utility model provides whole structure schematic view;

[0022] Figure 3 The utility model provides mounting plate sectional view;

[0023] Figure 4 The positioning mechanism structure schematic view provided by the utility model;

[0024] Figure 5 The positioning wheel and support rod structure schematic view provided by the utility model.

[0025] In the figure: 1, the main body of the holder; 2, the positioning mechanism; 3, the shooting mechanism; 4, the torsion spring; 5, the fastening bolt one; 6, the threaded hole; 7, the embedded groove; 8, the battery compartment; 9, the upper joint; 10, the lower joint; 11, the installation groove; 12, the fixed hole; 13, the fastening bolt two;

[0026] 21, the mounting plate; 22, the storage groove; 23, the positioning wheel; 24, the support rod; 25, the rotating rod; 26, the round plate; 27, the volute spring;

[0027] 31, the fixed plate; 32, the wireless camera; 33, the fixed groove. DETAILED DESCRIPTION

[0028] The embodiments of the utility model will be described below by specific examples, and those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0029] Referring to the drawings in the specification Figures 1-5 The utility model provides a kind of quick positioning assembly of holder, including the positioning mechanism 2 of being installed on the main body 1 of holder, positioning mechanism 2 includes multiple ring array distribution mounting plate 21, each mounting plate 21 outer wall is all set with storage groove 22, storage groove 22 inside is equipped with positioning wheel 23, positioning wheel 23 is rotationally connected with support rod 24 on, support rod 24 bottom is fixedly penetrated with rotating rod 25, and rotating rod 25 both ends are rotationally connected with the inner wall of storage groove 22, rotating rod 25 outer wall is fixedly set with round plate 26, round plate 26 is connected with volute spring 27 between storage groove 22, and, still be equipped with torsion spring 4 on each support rod 24 outer wall, torsion spring 4 one end is abutted with the inner wall of storage groove 22.

[0030] Each support rod 24 is all screw-connected with fastening bolt one 5, the inner wall of each storage groove 22 is all set with the threaded hole 6 compatible with fastening bolt one 5, and fastening bolt one 5 is screw-connected with threaded hole 6.

[0031] The upper joint 9 and the lower joint 10 are respectively arranged at the top and the bottom of the retainer body 1. The outer wall surface of the lower joint 10 is processed with a plurality of installation grooves 11 corresponding to the number of the installation plates 21. The installation plates 21 are inserted into the installation grooves 11. The outer wall surface of the lower joint 10 is provided with a plurality of fixing holes 12 corresponding to the installation grooves 11. The second fastening bolts 13 are screwed into each fixing hole 12. The lower joint 10 is detachably fixed with the installation plates 21 through the second fastening bolts 13. The installation plates 21 can be quickly disassembled and replaced by loosening the second fastening bolts 13.

[0032] In actual use, the staff first connects the top of the retainer body 1 with the mechanical setting tool, connects the mechanical setting tool with the oil pipe, loosens the first fastening bolts 5, removes the connection between the support rods 24 and the installation plates 21, and then pushes the support rods 24 out of the storage grooves 22 by the spiral springs 27 between the circular plates 26 and the storage grooves 22. Then the retainer body 1 can be placed into the pipeline by the oil pipe. The plurality of positioning wheels 23 are automatically abutted with the inner wall of the pipeline, which can adapt to different inner diameters of the pipeline, so that the retainer body 1 is quickly and stably moved to the plugging position. Meanwhile, the retainer body 1 can be positioned at the central position of the pipeline to some extent, so as to ensure the uniformity of the force and the plugging effect of the retainer body 1. When the retainer body 1 is used to inject cement, the lower joint 10 at the bottom of the retainer body 1 moves upward, driving the plurality of positioning wheels 23 to move upward together. The positioning wheels 23 are automatically compressed into the storage grooves 22 by the extrusion of the inner wall of the pipeline, which will not affect the plugging effect.

[0033] In the embodiment, the embedding groove 7 is arranged in the inner wall of each storage groove 22 below the threaded hole 6. The battery compartment 8 is fixedly arranged in the embedding groove 7. The battery compartment 8 is internally provided with a charging battery. The charging battery provides power for the camera, without wiring, thereby improving portability.

[0034] Referring to the drawings Figures 1-5 The shooting mechanism 3 is detachably connected to the top inner wall of each storage groove 22. Specifically, the shooting mechanism 3 comprises a fixed plate 31. The outer wall of the fixed plate 31 is fixedly provided with a wireless camera 32 for quick positioning. The front end top of each installation plate 21 is provided with a fixed groove 33. The fixed plate 31 is detachably fixed in the fixed groove 33, and the fixed plate 31 is arranged above the positioning wheel 23.

[0035] By arranging the wireless camera 32, such as CAMSOYC12, in each installation plate 21, the wireless camera 32 is used to shoot the picture between the retainer body 1 and the pipeline in real time. In this way, the staff can know the running state of the retainer body 1 in real time, and can also quickly position the retainer body 1 by means of the shooting picture, thereby further improving the installation efficiency of the retainer body 1.

[0036] Although the utility model has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model all belong to the scope of protection required by the utility model.

Claims

1. A quick positioning assembly of a retaining device, comprising a positioning mechanism (2) mounted on a retaining device body (1), characterized in that: The positioning mechanism (2) comprises a plurality of mounting plates (21) arranged in an annular array, each mounting plate (21) is provided with a receiving groove (22) on the outer wall, and a positioning wheel (23) is arranged in the receiving groove (22); a support rod (24) is rotatably connected to the positioning wheel (23). A rotating rod (25) is fixedly penetrated through the bottom of the support rod (24), and both ends of the rotating rod (25) are rotatably connected with the inner wall of the receiving groove (22); a circular plate (26) is fixedly sleeved on the outer wall of the rotating rod (25); a volute spring (27) is connected between the circular plate (26) and the receiving groove (22); and a shooting mechanism (3) is detachably connected to the top inner wall of each receiving groove (22).

2. The quick positioning assembly of a retainer according to claim 1, wherein: The shooting mechanism (3) comprises a fixed plate (31), and a wireless camera (32) for quick positioning is fixedly arranged on the outer wall of the fixed plate (31).

3. The quick positioning assembly of a retainer according to claim 2, wherein: A fixing groove (33) is formed in the top of the front end of each mounting plate (21), the fixed plate (31) is detachably fixed in the fixing groove (33), and the fixed plate (31) is arranged above the positioning wheel (23).

4. The rapid positioning assembly of a retainer according to claim 1, characterized in that: A torsion spring (4) is fixedly arranged on the outer wall of each support rod (24), and one end of the torsion spring (4) abuts against the inner wall of the receiving groove (22).

5. The rapid positioning assembly of a retainer according to claim 1, characterized in that: A fastening bolt (5) is threadedly connected to each support rod (24), a threaded hole (6) matched with the fastening bolt (5) is formed in the inner wall of each receiving groove (22), and the fastening bolt (5) is threadedly connected with the threaded hole (6).

6. The rapid positioning assembly of a retainer according to claim 5, characterized in that: An embedding groove (7) is formed in the inner wall of each receiving groove (22), the embedding groove (7) is arranged below the threaded hole (6), a battery compartment (8) is fixedly arranged in the embedding groove (7), and a charging battery is arranged in the battery compartment (8).

7. The rapid positioning assembly of a retainer according to claim 1, characterized in that: An upper joint (9) and a lower joint (10) are arranged on the top and the bottom of the retainer body (1) respectively, a plurality of mounting grooves (11) are formed on the outer wall surface of the lower joint (10), and the number of the mounting grooves (11) is the same as that of the mounting plates (21).

8. The quick positioning assembly of a retainer according to claim 7, wherein: A fixing hole (12) is formed in the outer wall surface of the lower joint (10) and is communicated with the mounting groove (11), a fastening bolt (13) is threadedly connected in each fixing hole (12), and the lower joint (10) and the mounting plate (21) are detachably fixed together through the fastening bolt (13).

Images