Leaking stoppage device for gas storage well

Abstract

The utility model relates to a gas storage well plugging device which comprises a sealing cover, a plugging mechanism is arranged in the sealing cover and comprises a limiting column fixedly installed on the inner top wall of the sealing cover, a lead screw is rotatably installed on the inner top wall of the sealing cover, a first gear is fixedly installed on the outer surface of the lead screw, and a second gear is fixedly installed on the outer surface of the first gear. And a mounting groove is formed in the sealing cover, a motor is fixedly mounted on the inner top wall of the mounting groove, a rotating rod is fixedly mounted on an output shaft of the motor through a coupler, and a second gear is fixedly mounted on the outer surface of the rotating rod. According to the plugging device for the gas storage well, the plugging mechanism is arranged, so that the purpose of effectively plugging the leakage part of the gas storage well is achieved, further expansion of a seepage channel is avoided, the gas storage well can be normally used, waste caused by leakage of gas in the gas storage is prevented, and the practicability of the gas storage well is improved. And the practicability of the plugging device for the gas storage well is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas storage well plugging, in particular to a gas storage well plugging device. Background Art

[0002] A gas storage means a "container" for storing natural gas. What we usually call an oil gas storage refers to an artificial gas field or gas reservoir formed by re-injecting commercial oil transported by long-distance pipelines into underground space. It is generally built near downstream natural gas user cities.

[0003] With the advancement of gas storage construction, a large number of gas storage wells have been put into operation. However, due to the harsh working conditions of gas storage wells such as strong injection and production, frequent changes in pressure cycles, and some wells have microcracks in the cementing cement due to natural cementing quality problems and injection-production alternation. Most of the existing plugging devices use cement cementing for plugging. There is a lack of circulation channels during secondary cementing, and it is difficult for cement to reach and plug the actual leakage location, and the effect cannot be guaranteed. Therefore, we proposed a gas storage well plugging device to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a gas storage well plugging device, which has the advantage of being able to effectively seal the annulus of the gas storage well, solves the problem that long-term pressure release will lead to further expansion of the seepage channel and aggravate the possibility and risk of annular space pressure, and reduces the practicality of the gas storage well plugging device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas storage well plugging device, comprising a sealing cover, wherein a plugging mechanism is arranged inside the sealing cover;

[0006] The sealing mechanism includes a limiting column fixedly installed on the inner top wall of the sealing cover, a screw rod is rotatably installed on the inner top wall of the sealing cover, a No. 1 gear is fixedly installed on the outer surface of the screw rod, a mounting groove is opened inside the sealing cover, a motor is fixedly installed on the inner top wall of the mounting groove, a rotating rod is fixedly installed on the output shaft of the motor through a coupling, a No. 2 gear is fixedly installed on the outer surface of the rotating rod, the outer surface of the No. 1 gear is meshed with the outer surface of the No. 2 gear, a screw block is threadedly connected to the outer surface of the screw block, a connecting plate is fixedly installed on the outer surface of the screw block, a vent hole penetrating at both ends is opened inside the connecting plate, a sealing block for sealing is fixedly installed on the outer surface of the connecting plate, and a handle is fixedly installed on the top of the sealing cover.

[0007] Furthermore, the sealing cover is movably installed on the top of the gas storage well pipe, and fixing frames are fixedly installed on the left and right sides of the gas storage well pipe. The opposite sides of the two fixing frames are threadedly connected to an extrusion rod with one end passing through and extending to the outside thereof, and the opposite sides of the two extrusion rods are fixedly installed with limiting blocks.

[0008] Furthermore, two sealing rings for sealing are fixedly mounted on the inner top wall of the sealing cover.

[0009] Furthermore, the outer surface of the sealing block is pressed against the inner wall of the gas storage well pipe.

[0010] Furthermore, the number of the vent holes is multiple and evenly distributed inside the connecting plate.

[0011] Furthermore, one end of the limiting column passes through and extends to the outside of the vent hole.

[0012] Furthermore, a handle that is easy to rotate is fixedly installed on the opposite sides of the two extrusion rods.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The gas storage well plugging device, by being provided with a plugging mechanism, can achieve the purpose of effectively plugging the leaking part of the gas storage well, thereby avoiding further expansion of the seepage channel, so that the gas storage well can be used normally, preventing gas in the gas storage from leaking out and causing waste, and improving the practicability of the gas storage well plugging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 The utility model structure Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a three-dimensional diagram of the connection between the well pipe and the sealing cover of the gas storage structure of the utility model.

[0018] In the figure: 1. gas storage well pipe; 2. fixing frame; 3. extrusion rod; 4. limit block; 5. sealing cover; 601. limit column; 602. screw rod; 603. gear No. 1; 604. mounting slot; 605. motor; 606. rotating rod; 607. gear No. 2; 608. screw block; 609. connecting plate; 610. vent hole; 611. sealing block; 612. handle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example 1: Please refer to Figure 1 A gas storage well plugging device in this embodiment includes a sealing cover 5, a plugging mechanism is arranged inside the sealing cover 5, the sealing cover 5 is movably installed on the top of the gas storage well pipe 1, and fixing frames 2 are fixedly installed on the left and right sides of the gas storage well pipe 1. The opposite sides of the two fixing frames 2 are threadedly connected to an extrusion rod 3 with one end penetrating and extending to the outside thereof, and the opposite sides of the two extrusion rods 3 are fixedly installed with a limiting block 4.

[0021] Among them, two sealing rings for sealing are fixedly installed on the inner top wall of the sealing cover 5, which can seal the gas inside the gas storage well pipe 1, thereby preventing gas from leaking from the contact point between the sealing cover 5 and the gas storage well pipe 1.

[0022] It should be noted that the sealing performance between the sealing cover 5 and the top of the gas storage well pipe 1 is intact, and thus the gas inside the gas storage will not leak from the connection between the sealing cover 5 and the gas storage well pipe 1.

[0023] Among them, the two extrusion rods 3 are fixedly installed with a rotating handle on the opposite side, the purpose of which is to facilitate the two extrusion rods 3 to simultaneously drive the two limit blocks 4 to move, so as to better limit the sealing cover 5.

[0024] The electrical components in the present invention are all electrically connected to an external main controller, and the main controller can be a conventional known device for controlling a computer, etc. The circuits and controls involved in the present invention are all prior art and will not be elaborated on here.

[0025] Specifically, by providing a plugging mechanism, the leaking part of the gas storage well can be effectively plugged, thereby avoiding further expansion of the seepage channel, so that the gas storage well can be used normally, and the practicability of the plugging mechanism is improved.

[0026] Example 2: Please refer to Figure 1-3On the basis of the first embodiment, the blocking mechanism includes a limit column 601 fixedly installed on the inner top wall of the sealing cover 5, a screw rod 602 is rotatably installed on the inner top wall of the sealing cover 5, a No. 1 gear 603 is fixedly installed on the outer surface of the screw rod 602, a mounting groove 604 is opened inside the sealing cover 5, a motor 605 is fixedly installed on the inner top wall of the mounting groove 604, a rotating rod 606 is fixedly installed on the output shaft of the motor 605 through a coupling, a No. 2 gear 607 is fixedly installed on the outer surface of the rotating rod 606, the outer surface of the No. 1 gear 603 is meshed with the outer surface of the No. 2 gear 607, a screw block 608 is threadedly connected to the outer surface of the screw block 608, a connecting plate 609 is fixedly installed on the outer surface of the screw block 608, a vent hole 610 penetrating at both ends is opened inside the connecting plate 609, a sealing block 611 for blocking is fixedly installed on the outer surface of the connecting plate 609, and a handle 612 is fixedly installed on the top of the sealing cover 5.

[0027] Among them, the outer surface of the sealing block 611 is pressed against the inner wall of the gas storage well pipe 1, so that the sealing block 611 can effectively seal the leakage part, thereby ensuring that the gas storage well pipe 1 can be used normally.

[0028] There are multiple vent holes 610 evenly distributed inside the connecting plate 609 , which enables the gas inside the gas storage well pipe 1 to circulate, thereby ensuring the safe operation of the gas storage well pipe 1 .

[0029] Among them, one end of the limiting column 601 passes through and extends to the outside of the vent hole 610, and its function is to limit the connecting plate 609, so that the screw rod 602 can drive the connecting plate 609 to move up and down, thereby sealing the cracks inside the gas storage well pipe 1.

[0030] It should be noted that one end of the limiting column 601 passes through and extends into one of the vent holes 610 , thereby being able to limit the movement of the connecting plate 609 , so that the connecting plate 60*9 can drive the sealing block 611 to move.

[0031] Specifically, by providing a motor 605, a rotating rod 606, a second gear 607, a first gear 603, a connection 609, a screw block 608, a screw rod 602, a limit column 601, and a sealing block 611, the purpose of effectively sealing the cracks inside the gas storage well is achieved, thereby avoiding gas leakage inside the gas storage well, improving the practicability and efficiency of the gas storage well plugging device, bringing great convenience to users, and thus ensuring the normal use of the gas storage well.

[0032] The working principle of the above embodiment is:

[0033] When it is necessary to seal the cracks inside the gas storage well, first place the sealing cover 5 on the top of the gas storage well pipe 1, so that the two sealing rings on the inner top wall of the sealing cover 5 correspond to the top position of the gas storage well pipe 1, to prevent the gas inside the gas storage from leaking from the connection between the sealing cover 5 and the gas storage well pipe 1, then rotate the two extrusion rods 3 in opposite directions at the same time, so that the two extrusion rods 3 move to the opposite side at the same time, and then the two extrusion rods 3 respectively drive the two limit blocks 4 to move to the opposite side at the same time, so that the two limit blocks 4 limit the sealing cover 5 from the left and right sides at the same time, then start the motor 605, so that the motor 605 drives the rotating rod 606 to rotate, and the rotating rod 606 drives the second gear 607 to rotate, the second gear 607 drives the first gear 603 to rotate, the first gear 603 drives the screw rod 602 to rotate, due to the limitation of the limit column 601, the screw rod 602 drives the screw block 608 to move downward, the screw block 608 drives the connecting plate 609 to move downward, and the connecting plate 609 drives the sealing block 611 to move downward. When the sealing block 611 moves to the crack of the gas storage well pipe 1, the motor 605 is turned off, and the sealing block 611 can seal the crack, so that the air pressure inside the gas storage reservoir tends to the normal range, which brings convenience to the user and completes the work of sealing the cracks inside the gas storage well.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas storage well plugging device, comprising a sealing cover (5), characterized in that: A sealing mechanism is provided inside the sealing cover (5); The blocking mechanism comprises a limiting column (601) fixedly mounted on the inner top wall of the sealing cover (5); a screw rod (602) is rotatably mounted on the inner top wall of the sealing cover (5); a first gear (603) is fixedly mounted on the outer surface of the screw rod (602); a mounting groove (604) is provided inside the sealing cover (5); a motor (605) is fixedly mounted on the inner top wall of the mounting groove (604); a rotating rod (606) is fixedly mounted on the output shaft of the motor (605) via a coupling; a rotating rod (606) is fixedly mounted on the outer surface of the rotating rod (606); There is a No. 2 gear (607), the outer surface of the No. 1 gear (603) is meshed with the outer surface of the No. 2 gear (607), the outer surface of the screw rod (602) is threadedly connected with a screw block (608), the outer surface of the screw block (608) is fixedly installed with a connecting plate (609), the interior of the connecting plate (609) is provided with vent holes (610) passing through at both ends, the outer surface of the connecting plate (609) is fixedly installed with a sealing block (611) for sealing, and the top of the sealing cover (5) is fixedly installed with a handle (612).

2. A gas storage well plugging device according to claim 1, characterized in that: The sealing cover (5) is movably mounted on the top of the gas storage well pipe (1), and fixing frames (2) are fixedly mounted on both the left and right sides of the gas storage well pipe (1), and the opposite sides of the two fixing frames (2) are threadedly connected to an extrusion rod (3) having one end passing through and extending to the outside thereof, and the opposite sides of the two extrusion rods (3) are fixedly mounted with a limiting block (4).

3. A gas storage well plugging device according to claim 1, characterized in that: Two sealing rings for sealing are fixedly mounted on the inner top wall of the sealing cover (5).

4. A gas storage well plugging device according to claim 2, characterized in that: The outer surface of the sealing block (611) is pressed against the inner wall of the gas storage well pipe (1).

5. A gas storage well plugging device according to claim 1, characterized in that: The number of the ventilation holes (610) is multiple and evenly distributed inside the connecting plate (609).

6. A gas storage well plugging device according to claim 5, characterized in that: One end of the limiting column (601) passes through and extends to the outside of the vent hole (610).

7. A gas storage well plugging device according to claim 2, characterized in that: A handle for easy rotation is fixedly mounted on the opposite sides of the two squeezing rods (3).

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