Temporary plugging agent feeding device for plugging of low-pressure leakage well

Abstract

The utility model discloses a temporary plugging agent feeding device for leakage stoppage of a low-pressure leakage well, and relates to the technical field of leakage well leakage stoppage auxiliary equipment. According to the temporary plugging agent feeding device for plugging of the low-pressure leakage well, a first motor is controlled to work to drive a lead screw to rotate, a lifting block drives a shock absorber and a positioning plate to approach the ground till a positioning anchor is anchored to the ground, the base is positioned, meanwhile, the shock absorber buffers vibration generated in the working process of the device, and the temporary plugging agent feeding effect is improved. A first electric push rod is controlled to drive a stirring bin to slide along a sliding rail until a feeding pipe moves to the left end of a U-shaped groove, temporary plugging agents are discharged, after discharging is completed, the first electric push rod drives the stirring bin to reset, a second electric push rod drives a motor bin to descend, a stirring block descends into fed temporary plugging liquid, a second motor drives stirring blades to rotate, and the temporary plugging agents are discharged. And by means of the integrated forming arrangement of the stirring block and the arrangement of the guide sleeve at the high position, the situation that the guide column structure is blocked in the flattening process is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment for plugging leaking wells, in particular to a temporary plugging agent delivery device for plugging leaking wells at low pressure. Background Art

[0002] During underground operations, it is necessary to repair old low-pressure gas wells. However, due to long-term exploitation, the formation pressure of these old wells is far lower than the wellbore liquid column pressure, and the well killing fluid is very easy to leak into the formation. During the repair operation, plugging and well killing operations must be carried out, which involves the release of temporary plugging agents.

[0003] For example, publication number CN217646253U discloses a temporary plugging agent delivery device for plugging low-pressure leaking wells, comprising a mixer body, a trolley fixed at the bottom of the mixer body, and a pounding mechanism arranged at the bottom of the mixer body, wherein the pounding mechanism comprises a support frame, an electric telescopic rod, a guide shaft and a stirring portion, wherein the bottom of the support frame is fixedly connected to the top surface of the trolley, one side of the electric telescopic rod is threadedly connected to the top surface of the support frame, the guide shaft passes through the top inner wall of the support frame and is fixedly connected to the top of the stirring portion, and the stirring portion is symmetrically arranged on both sides of the mixer body; the utility model can enable the rotating blades at the bottom of the transmission shaft to fully contact the temporary plugging agent, and the air mixed inside the poured temporary plugging agent will appear pores, thereby ensuring the molding and sealing effect, and the abutment blocks at the bottom of the rotating blades can contact and flatten the temporary plugging agent, thereby reinforcing the temporary plugging agent and preventing it from cracking;

[0004] The temporary plugging agent delivery device for plugging low-pressure leaking wells in the utility model lacks a positioning and fixing structure for the trolley, which causes the trolley to easily shake and shift during the process of stirring and delivering the temporary plugging agent, affecting the delivery position and the plugging effect. At the same time, its stop block is easily affected by the temporary plugging agent during operation and becomes stuck, affecting its elasticity, resulting in affecting the flattening effect of the temporary plugging agent. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a temporary plugging agent delivery device for plugging low-pressure leaking wells, which solves the problem that the temporary plugging agent delivery device for plugging low-pressure leaking wells lacks a positioning and fixing structure for a trolley, which causes the trolley to easily shake and shift during the process of stirring and delivering the temporary plugging agent, affecting the delivery position and the plugging effect; at the same time, its stop block is easily affected by the temporary plugging agent during operation and becomes stuck, affecting its elasticity, resulting in affecting the flattening effect of the temporary plugging agent.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a low-pressure leakage well plugging temporary plugging agent delivery device, comprising a base, a universal wheel is provided at the lower end of the base, a push-pull handrail is fixedly installed on the right side of the upper end of the base, an adjusting seat is fixedly installed on the front and rear sides of the upper end of the base, a lifting block is provided on the inner side of the adjusting seat, a screw rod is threadedly connected to the inner side of the lifting block, a shock absorber is provided at the lower end of the lifting block, a positioning plate is provided at the lower end of the shock absorber, a stirring bin is provided at the upper end of the base, an electric push rod 1 is provided on the right side of the stirring bin, a support frame is provided on the left side of the upper end of the base, an electric push rod 2 is fixedly installed on the upper end of the support frame, a motor bin is provided at the lower end of the support frame, a stirring block is provided at the lower end of the motor bin, and a guide sleeve is provided at the upper end of the motor bin.

[0007] Preferably, two adjustment seats are symmetrically arranged front and back, a through groove is opened on the surface of the base at the lower end of the adjustment seat, the lifting block and the adjustment seat and the inner side of the through groove are slidably connected, and a motor 1 is fixedly installed on the upper end of the adjustment seat, and the output end of the motor 1 extends to the inner side of the adjustment seat and is fixedly connected to the upper end of the screw rod, so as to facilitate the control of the rotation of the screw rod to drive the lifting block to rise and fall.

[0008] Preferably, the shock absorbers are located at the lower end of the lifting block and are arranged in parallel on the left and right, and are fixedly connected to the lower end of the lifting block. The shock absorbers and the inner sides of the through grooves are adapted to each other, and the lower ends of the shock absorbers are fixedly connected to the upper ends of the positioning plates. A positioning anchor is fixedly installed at the lower end of the positioning plate. A plurality of the positioning anchors are arranged in parallel on the left and right, so as to facilitate positioning, supporting and fixing of the base.

[0009] Preferably, the lower end of the mixing bin and the surface of the base are slidably connected via a slide rail, a U-shaped groove is provided on the surface of the base below the left side of the mixing bin, the left end of the mixing bin is connected to an electric control valve, the lower end of the electric control valve extends to the lower end of the U-shaped groove and is connected to a delivery pipe, the electric push rod 1 and the upper end of the base are fixedly connected via a support plate, the output end of the electric push rod 1 is fixedly connected to the right side of the mixing bin, so as to facilitate the control of the movement of the mixing bin and the delivery of the temporary plugging agent.

[0010] Preferably, motor 2 is fixedly installed on the inner side of the motor bin, the output end of motor 2 extends to the lower end of the motor bin, and is fixedly connected to the upper end of the stirring block through a rotating shaft, a stirring blade is fixedly installed on the outer side of the stirring block, and the lower end of the stirring block is horizontally arranged, and the motor bin and the stirring blade are adapted to the inner side of the U-shaped groove, so as to facilitate the control of the rotation of the stirring block to stir the temporary plugging agent.

[0011] Preferably, the support frame is designed as a U-shaped structure and is fixedly connected to the upper end of the base. The output end of the second electric push rod extends to the lower end of the support frame and is fixedly connected to the upper end of the guide sleeve, so as to facilitate the control of the lifting and lowering of the guide sleeve.

[0012] Preferably, a spring is fixedly installed on the inner side of the guide sleeve, a guide column is fixedly installed on the lower end of the spring, the upper end of the guide column is slidably sleeved with the inner side of the guide sleeve, the lower end of the guide column extends to the outer side of the guide sleeve and is fixedly connected to the upper end of the motor compartment, so as to facilitate the control of the stirring block to flatten the temporary plugging agent.

[0013] Beneficial Effects

[0014] The utility model provides a temporary plugging agent delivery device for plugging low-pressure leaking wells. Compared with the prior art, it has the following beneficial effects:

[0015] 1. The low-pressure leaking well plugging temporary plugging agent delivery device is provided with an adjusting seat, a lifting block, a screw rod, a motor 1, a shock absorber, a positioning plate, and a positioning anchor. The motor 1 is controlled to drive the screw rod to rotate, so that the lifting block slides and descends along the inner side of the adjusting seat, driving the shock absorber and the positioning plate to approach the ground until the positioning anchor is anchored to the ground, thereby realizing the positioning support and fixation of the base. At the same time, the shock absorber buffers the vibration generated during the operation of the device, effectively increasing the stability of the base positioning.

[0016] 2. The low-pressure leakage well plugging temporary plugging agent delivery device is provided with a stirring bin, a slide rail, a U-shaped groove, an electric control valve, a delivery pipe, an electric push rod 1, an electric push rod 2, a motor bin, a motor 2 and a stirring block. The electric push rod 1 is controlled to drive the stirring bin to slide along the slide rail until the delivery pipe moves to the left end of the U-shaped groove. The electric control valve is controlled to open to discharge the temporary plugging agent. After the temporary plugging agent is discharged, the electric push rod 1 drives the stirring bin to reset, and the electric push rod 2 drives the motor bin to descend, so that the stirring block descends into the delivered temporary plugging liquid. The motor 2 drives the stirring block and the stirring blade to rotate to stir the temporary plugging agent, thereby realizing the positioned delivery and stirring of the temporary plugging agent and avoiding position deviation.

[0017] 3. The temporary plugging agent delivery device for plugging low-pressure leaking wells is provided with an electric push rod 2, a stirring block, a guide sleeve, a spring and a guide column. After the temporary plugging agent has a certain hardness, the stirring block is driven to rise and fall by the electric push rod 2, so that the lower end of the stirring block repeatedly fits with the upper end of the temporary plugging agent. At the same time, the guide column is forced to slide on the inner side of the guide sleeve, and the elastic force of the spring is used to flatten the temporary plugging agent with the plane of the lower end of the stirring block. The one-piece molding setting of the stirring block and the setting of the high guide sleeve are used to effectively avoid the jamming of the guide column structure during the flattening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0020] Figure 3 The three-dimensional structure of the utility model is shown in FIG. Figure 3 ;

[0021] Figure 4 This is a schematic diagram of a half-section structure of the utility model in a front view;

[0022] Figure 5 It is a right side half-section structural schematic diagram of the utility model.

[0023] In the figure: 1. base; 2. universal wheel; 3. push-pull handrail; 4. adjustment seat; 41. through slot; 5. lifting block; 6. screw rod; 61. motor 1; 7. shock absorber; 8. positioning plate; 81. positioning anchor; 9. mixing chamber; 91. slide rail; 92. U-shaped slot; 93. electric control valve; 94. delivery pipe; 10. electric push rod 1; 11. support frame; 12. electric push rod 2; 13. motor chamber; 131. motor 2; 14. stirring block; 141. stirring blade; 15. guide sleeve; 151. spring; 152. guide column. DETAILED DESCRIPTION

[0024] 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.

[0025] Example 1: Please refer to Figure 1-5The utility model provides a technical solution: a temporary plugging agent delivery device for plugging a low-pressure leakage well, comprising a base 1, a universal wheel 2 is arranged at the lower end of the base 1, a push-pull handrail 3 is fixedly installed on the right side of the upper end of the base 1, an adjusting seat 4 is fixedly installed on the front and rear sides of the upper end of the base 1, a lifting block 5 is arranged on the inner side of the adjusting seat 4, a screw rod 6 is threadedly connected to the inner side of the lifting block 5, and two adjusting seats 4 are symmetrically arranged in front and back, a through groove 41 is opened on the surface of the base 1 at the lower end of the adjusting seat 4, the lifting block 5 and the adjusting seat 4, and the inner side of the through groove 41 are slidably connected, a motor 61 is fixedly installed on the upper end of the adjusting seat 4, the output end of the motor 61 extends to the inner side of the adjusting seat 4 and is fixedly connected to the upper end of the screw rod 6, a shock absorber 7 is arranged at the lower end of the lifting block 5, and a positioning plate 8 is arranged at the lower end of the shock absorber 7 A stirring bin 9 is provided at the upper end of the base 1, an electric push rod 10 is provided on the right side of the stirring bin 9, a support frame 11 is provided on the left side of the upper end of the base 1, an electric push rod 2 12 is fixedly installed on the upper end of the support frame 11, a motor bin 13 is provided at the lower end of the support frame 11, a stirring block 14 is provided at the lower end of the motor bin 13, and a guide sleeve 15 is provided at the upper end of the motor bin 13. The base 1 is driven to move by pushing and pulling the handrail 3, so that the universal wheel 2 rolls in coordination, so that the device can be moved to a suitable position as a whole, so that the left end of the U-shaped groove 92 is aligned with the required placement position, and the screw rod 6 is driven to rotate by controlling the motor 1 61 to make the lifting block 5 slide and descend along the inner side of the adjusting seat 4, driving the shock absorber 7 and the positioning plate 8 to approach the ground until the positioning anchor 81 is anchored to the ground, so as to realize the positioning support and fixation of the base 1;

[0026] The shock absorber 7 is located at the lower end of the lifting block 5 and is arranged in parallel on the left and right. It is fixedly connected to the lower end of the lifting block 5. The shock absorber 7 and the inner side of the through groove 41 are adapted to each other. The lower end of the shock absorber 7 is fixedly connected to the upper end of the positioning plate 8. The lower end of the positioning plate 8 is fixedly installed with a positioning anchor 81. There are multiple positioning anchors 81 arranged in parallel on the left and right.

[0027] Specifically, Figure 1 , Figure 2 As shown, by controlling the motor 61 to work and drive the screw rod 6 to rotate, the lifting block 5 slides down along the inner side of the adjustment seat 4, driving the shock absorber 7 and the positioning plate 8 close to the ground until the positioning anchor 81 is anchored to the ground, thereby realizing the positioning support and fixation of the base 1. At the same time, the shock absorber 7 buffers the vibration generated during the operation of the device, effectively increasing the positioning stability of the base 1. At the same time, by controlling the electric push rod 10, the mixing bin 9 is driven to slide along the slide rail 91 until the delivery tube 94 moves to the left end of the U-shaped groove 92. By controlling the electric control valve 93 to open, the temporary plugging agent is discharged. After the temporary plugging agent is discharged, the electric push rod 10 drives the mixing bin 9 to reset.

[0028] Embodiment 2: The lower end of the mixing chamber 9 and the surface of the base 1 are slidably connected via a slide rail 91, a U-shaped groove 92 is provided on the surface of the base 1 below the left side of the mixing chamber 9, the left end of the mixing chamber 9 is connected to an electric control valve 93, the lower end of the electric control valve 93 extends to the lower end of the U-shaped groove 92 and is connected to a delivery pipe 94, the electric push rod 10 and the upper end of the base 1 are fixedly connected via a support plate, and the output end of the electric push rod 10 is fixedly connected to the right side of the mixing chamber 9.

[0029] Specifically, Figure 2 , Figure 3 As shown, raw materials are fed into the inner side of the mixing chamber 9 through the feed hopper. After the temporary plugging agent is made by the mixing mechanism of the mixing chamber 9, the mixing chamber 9 is driven to slide along the slide rail 91 by controlling the electric push rod 10 until the delivery tube 94 moves to the left end of the U-shaped groove 92. The temporary plugging agent is discharged by controlling the electric control valve 93 to open.

[0030] Embodiment 3: A motor 2 131 is fixedly installed on the inner side of the motor bin 13, and the output end of the motor 2 131 extends to the lower end of the motor bin 13, and is fixedly connected to the upper end of the stirring block 14 through a rotating shaft. A stirring blade 141 is fixedly installed on the outer side of the stirring block 14, and the lower end of the stirring block 14 is horizontally arranged. The motor bin 13 and the stirring blade 141 are adapted to the inner side of the U-shaped groove 92. The motor bin 13 is driven to descend by the operation of the electric push rod 2 12, so that the stirring block 14 descends into the temporary plugging liquid.

[0031] Specifically, Figure 5 As shown, the stirring block 14 and the stirring blade 141 are driven to rotate by the motor 2 131 to stir the temporary plugging agent, thereby achieving the positioned delivery and stirring of the temporary plugging agent to avoid position deviation. After the temporary plugging agent has a certain hardness, the stirring block 14 is driven to rise and fall by the electric push rod 2 12, so that the lower end of the stirring block 14 repeatedly fits with the upper end of the temporary plugging agent.

[0032] Embodiment 4: The support frame 11 is designed as a U-shaped structure and is fixedly connected to the upper end of the base 1. The output end of the electric push rod 12 extends to the lower end of the support frame 11 and is fixedly connected to the upper end of the guide sleeve 15. A spring 151 is fixedly installed on the inner side of the guide sleeve 15, and a guide column 152 is fixedly installed on the lower end of the spring 151. The upper end of the guide column 152 is slidably connected to the inner side of the guide sleeve 15, and the lower end of the guide column 152 extends to the outer side of the guide sleeve 15 and is fixedly connected to the upper end of the motor compartment 13.

[0033] Specifically, Figure 4 , Figure 5 As shown, the guide column 152 is forced to slide inside the guide sleeve 15, and cooperates with the elastic force of the spring 151 to make the plane at the lower end of the stirring block 14 flatten the temporary blocking agent.

[0034] During use, the base 1 is moved by pushing and pulling the handrail 3, and the universal wheel 2 is rolled together, so that the device as a whole can be moved to a suitable position, so that the left end of the U-shaped groove 92 is aligned with the required delivery position, and the motor 61 is controlled to drive the screw rod 6 to rotate, so that the lifting block 5 slides down along the inner side of the adjustment seat 4, and drives the shock absorber 7 and the positioning plate 8 close to the ground until the positioning anchor 81 is anchored to the ground, so as to achieve the positioning support and fixation of the base 1. At the same time, the shock absorber 7 buffers the vibration generated during the operation of the device, effectively increasing the positioning stability of the base 1, and the raw materials are fed into the inner side of the mixing bin 9 through the feed hopper. After the temporary plugging agent is made by the mixing mechanism of the mixing bin 9, the mixing bin 9 is driven to slide along the slide rail 91 by controlling the electric push rod 10 until the delivery pipe 94 moves to the left end of the U-shaped groove 92, and the temporary plugging agent is discharged by controlling the electric control valve 93 to open, and the temporary plugging agent is temporarily blocked. After the temporary plugging agent is discharged, the electric push rod 10 drives the stirring bin 9 to reset, and the electric push rod 2 12 drives the motor bin 13 to descend, so that the stirring block 14 descends into the temporary plugging liquid, and the motor 2 131 drives the stirring block 14 and the stirring blade 141 to rotate, so as to stir the temporary plugging agent, thereby realizing the positioning delivery and stirring of the temporary plugging agent and avoiding position deviation. After the temporary plugging agent has a certain hardness, the electric push rod 2 12 drives the stirring block 14 to rise and fall, so that the lower end of the stirring block 14 repeatedly fits with the upper end of the temporary plugging agent, and at the same time, the guide column 152 is forced to slide on the inner side of the guide sleeve 15, and cooperates with the elastic force of the spring 151 to make the plane of the lower end of the stirring block 14 flatten the temporary plugging agent, thereby reinforcing the temporary plugging agent and preventing it from cracking. The one-piece molding setting of the stirring block 14 and the setting of the high guide sleeve 15 are used to effectively avoid the jamming of the guide column 152 structure during the flattening process.

[0035] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0036] Although 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 temporary plugging agent delivery device for plugging low-pressure leakage wells, comprising a base (1), characterized in that: The lower end of the base (1) is provided with a universal wheel (2), the right side of the upper end of the base (1) is fixedly installed with a push-pull handrail (3), the front and rear sides of the upper end of the base (1) are fixedly installed with an adjustment seat (4), the inner side of the adjustment seat (4) is provided with a lifting block (5), the inner side of the lifting block (5) is threadedly connected with a screw rod (6), the lower end of the lifting block (5) is provided with a shock absorber (7), the lower end of the shock absorber (7) is provided with a positioning plate (8), and the bottom A stirring chamber (9) is arranged at the upper end of the base (1), an electric push rod 1 (10) is arranged on the right side of the stirring chamber (9), a support frame (11) is arranged on the left side of the upper end of the base (1), an electric push rod 2 (12) is fixedly mounted on the upper end of the support frame (11), a motor chamber (13) is arranged at the lower end of the support frame (11), a stirring block (14) is arranged at the lower end of the motor chamber (13), and a guide sleeve (15) is arranged at the upper end of the motor chamber (13).

2. A temporary plugging agent delivery device for low-pressure leakage wells according to claim 1, characterized in that: The adjusting seats (4) are provided with two symmetrical front and rear portions, a through slot (41) is provided on the surface of the base (1) at the lower end of the adjusting seat (4), the lifting block (5) is slidably connected to the adjusting seat (4) and the inner side of the through slot (41), a motor (61) is fixedly mounted on the upper end of the adjusting seat (4), and the output end of the motor (61) extends to the inner side of the adjusting seat (4) and is fixedly connected to the upper end of the screw rod (6).

3. A temporary plugging agent delivery device for low-pressure leakage wells according to claim 2, characterized in that: The shock absorbers (7) are located at the lower end of the lifting block (5) and are arranged in parallel on the left and right sides, and are fixedly connected to the lower end of the lifting block (5). The shock absorbers (7) and the inner side of the through groove (41) are mutually adapted. The lower end of the shock absorber (7) is fixedly connected to the upper end of the positioning plate (8). The lower end of the positioning plate (8) is fixedly installed with a positioning anchor (81). The positioning anchors (81) are arranged in parallel on the left and right sides.

4. The temporary plugging agent delivery device for low-pressure leakage wells according to claim 1 is characterized in that: The lower end of the stirring chamber (9) and the surface of the base (1) are slidably connected via a slide rail (91); a U-shaped groove (92) is provided on the surface of the base (1) below the left side of the stirring chamber (9); the left end of the stirring chamber (9) is connected to an electric control valve (93); the lower end of the electric control valve (93) extends to the lower end of the U-shaped groove (92) and is connected to a delivery pipe (94); the electric push rod (10) and the upper end of the base (1) are fixedly connected via a support plate; and the output end of the electric push rod (10) is fixedly connected to the right side of the stirring chamber (9).

5. A temporary plugging agent delivery device for low-pressure leakage wells according to claim 4, characterized in that: A second motor (131) is fixedly mounted on the inner side of the motor bin (13); an output end of the second motor (131) extends to the lower end of the motor bin (13) and is fixedly connected to the upper end of the stirring block (14) via a rotating shaft; a stirring blade (141) is fixedly mounted on the outer side of the stirring block (14); the lower end of the stirring block (14) is arranged horizontally; and the motor bin (13) and the stirring blade (141) are mutually adapted to the inner side of the U-shaped groove (92).

6. The temporary plugging agent delivery device for low-pressure leakage wells according to claim 1, characterized in that: The support frame (11) is designed in a U-shaped structure and is fixedly connected to the upper end of the base (1); the output end of the second electric push rod (12) extends to the lower end of the support frame (11) and is fixedly connected to the upper end of the guide sleeve (15).

7. The device for delivering temporary plugging agent for low-pressure leakage wells according to claim 1 is characterized in that: A spring (151) is fixedly mounted on the inner side of the guide sleeve (15), a guide column (152) is fixedly mounted on the lower end of the spring (151), the upper end of the guide column (152) is slidably sleeved with the inner side of the guide sleeve (15), and the lower end of the guide column (152) extends to the outer side of the guide sleeve (15) and is fixedly connected to the upper end of the motor compartment (13).

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