Bridge plug protection device

Abstract

The utility model discloses a bridge plug protection device in the technical field of bridge plug protection devices. Comprising two protection devices used for protecting a bridge plug body, the bridge plug body comprises a rubber pipe, the bridge plug body comprises slips used for being matched with the protection devices to relieve protection of the rubber pipe, and each protection device comprises a plurality of protection plates used for protecting the rubber pipe. And a plurality of limiting plates for guiding the protection plate are mounted at one end of the protection plate. When the bridge plug body works, a slip expands, synchronously approaches a rubber pipe and drives a first arc-shaped plate limited by a guide rod to synchronously approach the rubber pipe, so that a first positioning block pulls a pull rope, and under limiting of a bolt, the pull rope pulls a second positioning block and synchronously drives a protection plate to move in the direction of the slip; and then the rubber pipe is opened, and the bridge plug body is conveniently limited after the rubber pipe is expanded.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge plug protection device technical field, concretely relates to a bridge plug protection device. BACKGROUND

[0002] Bridge plug includes soluble bridge plug and removable bridge plug, when soluble bridge plug is put into oil and gas well, the middle rubber part of bridge plug is easy to be bumped and hit, causes the abrasion of bridge plug, makes the sealing property of bridge plug reduce.

[0003] For example the bridge plug protection device disclosed by Chinese patent publication No. CN215804404U, its specific content is: the protection cylinder is sleeved outside the bridge plug, in the process of vertically lifting the cable multistage perforating pipe string, the lower end bridge plug is not damaged by bumping and impact, the front end of the protection cylinder is locked by the annular clasp, the annular clasp, the protection cylinder and the bridge plug push cylinder are connected into an organic whole by the pin, the annular clasp is preferably composed of two half rings, when using, close the two half rings, screw on the pin and lock the lock buckle, when it is necessary to disassemble, open the lock, unscrew the pin, the whole device can be easily removed, but it still has the following technical problems:

[0004] The protection cylinder can only protect the bridge plug before it is put into the oil and gas well, however, when the bridge plug is in the oil and gas well, since the protection cylinder is fixed by bolts, it is difficult to disassemble the protection cylinder after it is put into the oil and gas well, causing the soluble bridge plug cannot be used normally, therefore, it cannot protect the rubber part of the bridge plug put into the oil and gas well. SUMMARY

[0005] Therefore, the utility model provides a bridge plug protection device to solve the problem that the rubber part of the bridge plug put into the oil and gas well cannot be protected in the prior art.

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

[0007] A bridge plug protection device comprises two protection devices for protecting the bridge plug body.

[0008] The bridge plug body comprises a rubber tube, and the bridge plug body comprises a slip for releasing the protection of the rubber tube by the protection device.

[0009] The protection device comprises a plurality of protection plates for protecting the rubber tube, and one end of the protection plate is provided with a plurality of limiting plates for guiding the protection plate.

[0010] Further, one end of the rubber tube is connected with a center cylinder, and a plurality of threaded holes are formed in one side of the center cylinder.

[0011] Further, one side of the slip is provided with a limiting slot one, and a guide rod for limiting the limiting plate is arranged in the slot cavity of the limiting slot one.

[0012] Further, the protection plate comprises a second arc-shaped plate, a plurality of limiting slots three are arranged in the middle part of the second arc-shaped plate, a limiting slot four is arranged in the slot cavity of the limiting slot three, a second positioning block is arranged in the slot cavity of the limiting slot three, and a pull rope is arranged in the middle part of the second positioning block.

[0013] Further, the limiting plate comprises a first arc-shaped plate, a plurality of limiting slots two are arranged in the middle part of the first arc-shaped plate, a plurality of limiting holes for limiting the limiting plate by cooperating with the guide rod are arranged in one end of the first arc-shaped plate close to the slip, and a first positioning block for limiting the pull rope is arranged in the other end of the first arc-shaped plate.

[0014] Further, a bolt for limiting the first arc-shaped plate and the second arc-shaped plate by cooperating with the threaded hole is arranged in the slot cavity of the limiting slot two.

[0015] Further, the protection device comprises a U-shaped block and a limiting block for limiting two protection devices, a clamping block is arranged in one end of the U-shaped block, and a clamping groove is arranged in the middle part of the limiting block.

[0016] The utility model has the advantages of the following:

[0017] When the bridge plug body works, the slip expands, synchronously approaches the rubber tube, drives the first arc-shaped plate limited by the guide rod to synchronously approach the rubber tube, makes the first positioning block pull the pull rope, under the limitation of the bolt, the pull rope pulls the second positioning block, synchronously drives the protection plate to move to the direction of the slip, and then opens the rubber tube, and the bridge plug body is limited after the rubber tube expands. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the embodiment 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 according to the provided drawings without creative labor.

[0019] The structure, proportion, size and the like shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and do not define the limiting conditions that can be implemented by the utility model, so they do not have technical substantive significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model.

[0020] Figure 1 It is a whole structure schematic view of the utility model;

[0021] Figure 2 It is a bridge plug body of the utility model;

[0022] Figure 3 It is a structure schematic view of the protective device of the utility model;

[0023] Figure 4 It is a structure schematic view of the protective plate of the utility model;

[0024] Figure 5 It is a structure schematic view of the limiting plate of the utility model;

[0025] Figure 6 It is the A place enlarged view of the utility model; Figure 1

[0026] In the figure: 100-bridge plug body, 110-rubber pipe, 120-center cylinder, 121-thread hole, 130-casing shoe, 131-limiting groove one, 132-guiding rod;

[0027] 01-protective device;

[0028] 200-protective plate, 210-second arc-shaped plate, 211-limiting groove three, 212-limiting groove four, 213-second positioning block, 220-pull rope;

[0029] 300-limiting plate, 310-first arc-shaped plate, 311-limiting groove two, 312-limiting hole, 313-first positioning block, 320-bolt;

[0030] 10-U-shaped block, 11-clamping block, 20-limiting block, 21-clamping groove. Specific implementation

[0031] ​The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0032] The terms "upper", "lower", "left", "right", "middle", etc. used in this specification are only for the convenience of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be considered as the scope of implementation of the present invention without substantially changing the technical content.

[0033] See also Figures 1-6 The present invention provides a bridge plug protection device, which includes two protection devices 01 for protecting a bridge plug body 100 , and the two protection devices 01 are symmetrically arranged on the left and right sides of the bridge plug body 100 .

[0034] The bridge plug body 100 includes a rubber tube 110, one end of which is connected to a central tube 120. A plurality of threaded holes 121 are defined on the side of the central tube 120 proximal to the rubber tube 110. The bridge plug body 100 includes a slip 130 for engaging with the protective device 01 to release the rubber tube 110. A limit slot 131 is defined on one side of the slip 130. Within the cavity of the limit slot 131 are mounted a plurality of guide rods 132 for limiting the position of the limit plate 300.

[0035] The protective device 01 includes multiple protective plates 200 for protecting the rubber tube 110. The protective plate 200 includes a second curved plate 210. A plurality of limiting grooves 3 211 are opened in the middle of the inner wall of the second curved plate 210. The groove cavity of the limiting groove 3 211 is opened with a limiting groove 4 212. The groove cavity of the limiting groove 3 211 is fixedly installed with a second positioning block 213. The middle of the second positioning block 213 is fixedly installed with a pull rope 220. Through the setting of the protective plate 200, it is convenient for the limiting plate 300 to pull the protective plate 200 when moving.

[0036] The end of the protection plate 200 is provided with a plurality of limiting plates 300 for guiding the protection plate 200, the limiting plate 300 comprises a first arc-shaped plate 310, a plurality of limiting grooves two 311 are formed in the middle part of the first arc-shaped plate 310, a plurality of limiting holes 312 for limiting the limiting plate 300 in cooperation with the guide rod 132 are formed in the end of the first arc-shaped plate 310 close to the slip 130, when the first arc-shaped plate 310 is installed, the guide rod 132 is inserted into the hole cavity of the limiting hole 312, so as to limit the limiting plate 300, so that when the slip 130 moves left and right, the first arc-shaped plate 310 is synchronously driven to move left and right.

[0037] The outer wall of the other end of the first arc-shaped plate 310 is fixedly provided with a first positioning block 313 for limiting the pull rope 220, one end of the pull rope 220 is fixed on the first positioning block 313, and the other end of the pull rope 220 is fixed on the second positioning block 213. The hole cavity of the limiting groove two 311 is provided with a bolt 320 for limiting the first arc-shaped plate 310 and the second arc-shaped plate 210 in cooperation with the threaded hole 121, after the guide rod 132 is located in the hole cavity of the limiting hole 312, the protection plate 200 is placed on the upper end of the limiting plate 300, the bolt 320 passes through the limiting groove four 212 and the limiting groove two 311 and is screwed into the hole cavity of the threaded hole 121, and then the second arc-shaped plate 210 and the first arc-shaped plate 310 are limited, so that the bolt 320 can slide in the groove cavities of the limiting groove two 311 and the limiting groove four 212.

[0038] The bolt 320 slides in the groove cavities of the limiting groove three 211 and the limiting groove four 212, the second positioning block 213 is located on one side of the groove cavity of the limiting groove three 211, the first positioning block 313 is located on the other side of the groove cavity of the limiting groove three 211, and the second positioning block 213 and the first positioning block 313 are respectively located on the two sides of the bolt 320, so that the middle part of the pull rope 220 and the upper end of the bolt 320 are in contact, causing the pull rope 220 to be bent by one hundred and eighty degrees, so as to facilitate the first arc-shaped plate 310 to move left under the limitation of the bolt 320, the second arc-shaped plate 210 is pulled, the bolt 320 moves right, and the contact part of the bolt 320 and the pull rope 220 is not provided with a thread, the protection device 01, the U-shaped block 10 and the limiting block 20 of the utility model are all made of fusible material.

[0039] The protection device 01 comprises a U-shaped block 10 and a limiting block 20 for limiting two protection devices 01, one end of the U-shaped block 10 is fixedly provided with a clamping block 11, and a clamping groove 21 is formed in the middle part of the limiting block 20.

[0040] The two protection devices 01 are symmetrically arranged, when the two protection plates 200 protect the rubber pipe 110, the edge portions of the two protection plates 200 are close to each other, the right wall of the left protection plate 200 is provided with a groove cavity, the U-shaped block 10 is fixedly installed in the groove cavity, the left wall of the right protection plate 200 is fixedly installed with the limiting block 20, the clamping block 11 is inserted into the groove cavity of the clamping groove 21, so that the two symmetrically arranged protection plates 200 are locked with each other, the protection of the rubber pipe 110 is completed, and the two protection plates 200 are not easy to separate when the bridge plug body 100 is put into the oil and gas well.

[0041] When the bridge plug body 100 works, the slips 130 expand and simultaneously approach the rubber pipe 110, the first arc-shaped plate 310 limited by the guide rod 132 is driven to simultaneously approach the rubber pipe 110, the first limiting block 313 pulls the pull rope 220, the pull rope 220 pulls the second limiting block 213 under the limitation of the bolt 320, the protection plate 200 is driven to move to the direction of the slip 130, and then the rubber pipe 110 is opened, so that the rubber pipe 110 is convenient to expand and limit the bridge plug body 100, and when the two protection plates 200 are away from each other, one end of the U-shaped block 10 is deformed by the clamping block 11, so that the clamping block 11 moves out of the groove cavity of the clamping groove 21.

[0042] Although the utility model has been described in detail above by 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 bridge plug protection device, comprising two protection devices (01) for protecting a bridge plug body (100), characterized in that: the bridge plug body (100) comprises a rubber tube (110), and the bridge plug body (100) comprises a slip (130) for disengaging the protection of the rubber tube (110) by the protection device (01); the protection device (01) comprises a plurality of protection plates (200) for protecting the rubber tube (110), and one end of the protection plate (200) is provided with a plurality of limiting plates (300) for guiding the protection plate (200).

2. The bridge plug protection device of claim 1, wherein: One end of the rubber tube (110) is connected with a central cylinder (120), and a plurality of threaded holes (121) are formed in one side of the central cylinder (120).

3. The bridge plug protection device of claim 2, wherein: One side of the slip (130) is provided with a limiting groove I (131), and a guide rod (132) for limiting the limiting plate (300) is arranged in the cavity of the limiting groove I (131).

4. The bridge plug protection apparatus of claim 3, wherein: The protection plate (200) comprises a second arc-shaped plate (210), a plurality of limiting grooves III (211) are formed in the middle of the second arc-shaped plate (210), a limiting groove IV (212) is formed in the cavity of the limiting groove III (211), a second positioning block (213) is arranged in the cavity of the limiting groove III (211), and a pull rope (220) is arranged in the middle of the second positioning block (213).

5. The bridge plug protection device of claim 4, wherein: The limiting plate (300) comprises a first arc-shaped plate (310), a plurality of limiting grooves II (311) are formed in the middle of the first arc-shaped plate (310), a plurality of limiting holes (312) are formed in one end of the first arc-shaped plate (310) close to the slip (130) for limiting the limiting plate (300) in cooperation with the guide rod (132), and a first positioning block (313) for limiting the pull rope (220) is arranged at the other end of the first arc-shaped plate (310).

6. The bridge plug protection device of claim 5, wherein: The cavity of the limiting groove II (311) is provided with a bolt (320) for limiting the first arc-shaped plate (310) and the second arc-shaped plate (210) in cooperation with the threaded hole (121).

7. The bridge plug protection device of claim 1, wherein: The protection device (01) comprises a U-shaped block (10) and a limiting block (20) for limiting two protection devices (01), one end of the U-shaped block (10) is provided with a clamping block (11), and the middle of the limiting block (20) is provided with a clamping groove (21).

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