Steel wire operation bridge plug

Abstract

The utility model discloses a steel wire operation bridge plug, which belongs to the technical field of bridge plugs and comprises a bridge plug body, a positioning cavity is arranged in the bridge plug body, a plurality of sliding holes communicated with the positioning cavity are arranged on the appearance of the bridge plug body, and a first electric push rod is fixedly mounted at the top end of the inner wall of the positioning cavity. A sliding block is fixedly installed at the output end of the first electric push rod, a plurality of supporting rods are hinged to the outer side of the sliding block, a plurality of rubber plates are hinged to the top end of the inner wall of the positioning cavity, and one side of each rubber plate is hinged to one end of the corresponding supporting rod. The bridge plug body is prevented from sliding, and meanwhile, the stability of equipment is improved through double fixation.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge plugs, and particularly relates to a wire-operated bridge plug. Background Art

[0002] At present, a commonly used downhole wire-operated bridge plug is used for setting and sealing to isolate a well section for a smooth fracturing operation. In the prior art, when the bridge plug is put in place, the bridge plug needs to be on the set inner wall of the wellbore to block the set well section. However, in the actual operation process, the friction force between the bridge plug and the inner wall of the wellbore is insufficient, which easily causes the bridge plug to slip, resulting in an inaccurate position and having a certain impact on the subsequent processes.

[0003] In the prior art, an integral soluble bridge plug with the application number CN202221945945.7 includes a bridge plug body. Fixing grooves are formed around the surface of the bridge plug body. An electric push rod is fixedly connected to the front of the inner cavity of the fixing groove. Rubber plates are arranged around the surface of the bridge plug body. By setting the fixing grooves, the utility model plays a role in fixing the electric push rods and improves the stability of the electric push rods during use. By setting the accommodating grooves, a sliding space is provided for the movable blocks and the movable blocks are limited to prevent the movable blocks from shifting in position during movement. By setting the electric push rods, rubber plates, movable blocks and first fixing rings, the electric push rods are used to drive the movable blocks to move, solving the problem that in the actual operation process, the friction force between the bridge plug and the inner wall of the wellbore is insufficient, easily causing the bridge plug to slip, resulting in an inaccurate position and having a certain impact on the subsequent processes, and there are certain inconveniences during use.

[0004] However, in the above-mentioned solution in the prior art, when increasing the friction force, multiple electric push rods cooperate to drive the rubber plates to move to increase the friction force. However, one electric push rod can only control one rubber plate, which may cause the multiple rubber plates to move out of sync, and when one electric push rod is damaged, the bridge plug will shift. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a wire-operated bridge plug, aiming to improve the problems that the adjustment of a large number of rubber plates is more cumbersome and the fixation is single and prone to damage.

[0006] The utility model is realized as follows: A wire-operated bridge plug includes a bridge plug body. A positioning cavity is arranged inside the bridge plug body. A plurality of sliding holes communicating with the positioning cavity are arranged on the outer shape of the bridge plug body. A first electric push rod is fixedly installed at the top end of the inner wall of the positioning cavity. A slider is fixedly installed at the output end of the first electric push rod. A plurality of support rods are hinged to the outside of the slider. A plurality of rubber plates are hinged to the top end of the inner wall of the positioning cavity. One side of each rubber plate is hinged to one end of one of the support rods.

[0007] In a preferred technical solution of the present utility model, the support rods, the rubber plates and the sliding holes correspond to each other one by one, and the rubber plates are slidably connected to the inner walls of the sliding holes.

[0008] In a preferred technical solution of the present utility model, a plurality of first guide rods are fixedly installed between two sides of the inner wall of the positioning cavity, the slider is slidably installed on the first guide rods, and the first guide rods are annularly arranged on the slider.

[0009] In a preferred technical solution of the present utility model, second electric push rods are symmetrically and fixedly installed at the top end of the inner wall of the positioning cavity, a positioning ring is fixedly installed at the output end of the second electric push rods, the positioning ring is movably connected to one side of the rubber plate, and the outer top end of the positioning ring is arc-shaped.

[0010] In a preferred technical solution of the present utility model, second guide rods are fixedly installed between two sides of the inner wall of the positioning cavity, and the positioning ring is slidably installed on the second guide rods.

[0011] In a preferred technical solution of the present utility model, the second guide rods and the second electric push rods are annularly and staggeredly arranged in the positioning cavity.

[0012] In a preferred technical solution of the present utility model, a plurality of rubber rings are fixedly installed on the outer side of the bridge plug body, and the plurality of rubber rings are equidistantly arranged on the outer side of the bridge plug body.

[0013] The beneficial effects of the present utility model are as follows: A wire-operated bridge plug obtained by the above design of the present utility model, when in use, first start the first electric push rod to drive the slider to move, and the movement of the slider drives the plurality of rubber plates to synchronously rotate through the support rods until they extend out of the sliding holes and abut against the inner wall of the wellbore. Then start the second electric push rod to drive the positioning ring to move until the positioning ring squeezes and fixes the rubber plates. When operating the bridge plug body, this device improves the friction between the bridge plug body and the inner wall of the wellbore, prevents the bridge plug body from slipping, and at the same time, the double fixation improves the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 is a schematic structural diagram of a wire-operated bridge plug provided by an embodiment of the present utility model;

[0016] Figure 2Schematic diagram of the internal structure of the positioning cavity provided by the embodiment of the present utility model;

[0017] Figure 3 Partial structural schematic diagram of a wire-operated bridge plug provided by the embodiment of the present utility model;

[0018] Figure 4 Schematic diagram of the structure of the positioning ring provided by the embodiment of the present utility model.

[0019] In the figure: 110 - bridge plug body; 111 - positioning cavity; 112 - sliding hole; 120 - first electric push rod; 121 - slider; 122 - support rod; 123 - rubber plate; 124 - first guide rod; 130 - rubber ring; 140 - second electric push rod; 141 - positioning ring; 142 - second guide rod. Specific embodiments

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: a wire-operated bridge plug, including a bridge plug body 110, a positioning cavity 111 is provided inside the bridge plug body 110, a plurality of sliding holes 112 communicating with the positioning cavity 111 are provided on the outer shape of the bridge plug body 110, a first electric push rod 120 is fixedly installed at the top end of the inner wall of the positioning cavity 111, a slider 121 is fixedly installed at the output end of the first electric push rod 120, a plurality of support rods 122 are hinged on the outer side of the slider 121, a plurality of rubber plates 123 are hinged at the top end of the inner wall of the positioning cavity 111, one side of each rubber plate 123 is hinged to one end of a support rod 122, the support rods 122, the rubber plates 123, and the sliding holes 112 are in one-to-one correspondence, the rubber plate 123 is slidably connected to the inner wall of the sliding hole 112, a plurality of rubber rings 130 are fixedly installed on the outer side of the bridge plug body 110, and the plurality of rubber rings 130 are equidistantly arranged on the outer side of the bridge plug body 110.

[0022] In some specific implementation schemes, a plurality of first guide rods 124 are fixedly installed between the two sides of the inner wall of the positioning cavity 111, the slider 121 is slidably installed on the first guide rods 124, the first guide rods 124 are annularly arranged on the slider 121, and the cooperation of the first guide rods 124 and the slider 121 improves the stability of the slider 121 during movement.

[0023] Please refer to Figure 4, symmetrically and fixedly installed on the top end of the inner wall of the positioning cavity 111 are second electric push rods 140. The output ends of the second electric push rods 140 are fixedly installed with positioning rings 141. The positioning rings 141 are movably connected to one side of the rubber plates 123, and the outer top ends of the positioning rings 141 are arranged in an arc shape.

[0024] In some specific embodiments, second guide rods 142 are fixedly installed between both sides of the inner wall of the positioning cavity 111. The positioning rings 141 are slidably installed on the second guide rods 142, and the second guide rods 142 improve the stability of the positioning rings 141 during movement.

[0025] In some specific embodiments, the second guide rods 142 and the second electric push rods 140 are arranged in a ring-shaped staggered manner within the positioning cavity 111, preventing the outputs of the first electric push rod 120 and the second electric push rod 140 from colliding, and having better stability at the same time.

[0026] Working principle: During use, first start the first electric push rod 120 to drive the slider 121 to move. The movement of the slider 121 drives multiple rubber plates 123 to rotate synchronously through the support rods 122 until they extend out of the sliding holes 112 and abut against the inner wall of the wellbore. Then start the second electric push rod 140 to drive the positioning ring 141 to move until the positioning ring 141 presses and fixes the rubber plates 123.

[0027] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A wireline-operated bridge plug, comprising a bridge plug body, characterized in that, A positioning cavity is provided inside the bridge plug body. A plurality of sliding holes communicating with the positioning cavity are provided on the outer shape of the bridge plug body. A first electric push rod is fixedly installed at the top end of the inner wall of the positioning cavity. A slider is fixedly installed at the output end of the first electric push rod. A plurality of support rods are hinged to the outside of the slider. A plurality of rubber plates are hinged to the top end of the inner wall of the positioning cavity. One side of each rubber plate is hinged to one end of one of the support rods.

2. The wire-operated bridge plug according to claim 1, characterized in that, The support rods, the rubber plates and the sliding holes correspond to each other one by one. The rubber plates are slidably connected to the inner walls of the sliding holes.

3. The wire-operated bridge plug according to claim 1, characterized in that, A plurality of first guide rods are fixedly installed between the two sides of the inner wall of the positioning cavity. The slider is slidably installed on the first guide rods.

4. A wire-operated bridge plug according to claim 1, wherein, Second electric push rods are symmetrically and fixedly installed at the top end of the inner wall of the positioning cavity. A positioning ring is fixedly installed at the output end of the second electric push rod. The positioning ring is movably connected to one side of the rubber plate.

5. The wire-operated bridge plug according to claim 4, characterized in that, Second guide rods are fixedly installed between the two sides of the inner wall of the positioning cavity. The positioning ring is slidably installed on the second guide rods.

6. The wire-operated bridge plug according to claim 5, characterized in that, The second guide rods and the second electric push rods are arranged in a ring-shaped and staggered manner in the positioning cavity.

7. A wire-operated bridge plug according to claim 1, characterized in that, A plurality of rubber rings are fixedly installed on the outside of the bridge plug body.

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