Reservoir ultrasonic negative pressure plug removal device

Abstract

The utility model relates to a kind of reservoir ultrasonic wave negative pressure plugging removal devices, belong to reservoir plugging removal technical field, including the mounting plate being arranged in the inside of oil well, the bottom of mounting plate is fixedly installed with ultrasonic transducer, the outside of mounting plate is provided with sliding mechanism;The sliding mechanism includes two connecting plates respectively arranged in the both sides of mounting plate, pulley is rotatably installed in the outside of two connecting plates, the top of mounting plate is fixedly installed with fixed box, adjusting device is arranged between the fixed box and connecting plate;The adjusting device includes drive motor, the output shaft of drive motor is connected with connecting shaft, and the left and right ends of connecting shaft are fixedly connected with screw rod.This reservoir ultrasonic wave negative pressure plugging removal device uses pulley to guide delivery along the inner wall of oil well for ultrasonic transducer, avoids ultrasonic transducer from colliding with the inner wall of oil well during use, and facilitates use.

Description

TECHNICAL FIELD

[0001] The utility model relates to reservoir plugging removal technical field, concretely is a kind of reservoir ultrasonic negative pressure plugging removal device. BACKGROUND

[0002] In the process of oilfield exploitation, the oil and water well is invaded by foreign solid particles, particle migration, scaling and sensitivity damage due to drilling, well completion, perforation, sand washing operation, well repair treatment, etc., causing the pore throat to narrow or block, resulting in the decrease of formation permeability, the decrease of oil well production, the increase of water well oil pressure or the failure of water injection, and the adoption of multiple fracturing, acidification and other stimulation measures, which has achieved good treatment effect, but at the same time, the near-well reservoir has been damaged to different degrees. The ultrasonic plugging removal technology is based on physical action, without introducing fluid into the formation during treatment, without causing pollution from external factors, without causing damage to the oil layer again, which can effectively dredge the pore throat and remove the plugging of the oil layer, a new stimulation technology with low cost, simple process, strong penetration ability, large treatment radius, no pollution and other advantages.

[0003] The prior art with publication number CN209761395U discloses an ultrasonic plugging removal tool, which comprises an ultrasonic generator, a cable winding and unwinding assembly, an ultrasonic transducer comprising an upper pressure cap, an upper joint, a transduction inner cylinder, a transduction outer cylinder, a plurality of piezoelectric ceramics, a lower joint and a lower pressure cap arranged coaxially, the upper joint is internally provided with a cable interface, and an armored cable is connected to the ultrasonic generator at one end and connected to the cable interface at the other end. The bottom hole and the near-well oil layer can be improved in terms of flow condition and permeability, so as to remove the plugging, prevent and remove scale, prevent wax, reduce the viscosity of crude oil, and achieve the effect of increasing production and injection.

[0004] The ultrasonic plugging removal tool is transported into the well through the cable during use, and due to the lack of a guiding mechanism, the ultrasonic transducer is prone to shaking during transportation, which may collide with the well wall, causing damage to the ultrasonic transducer and causing inconvenience. Therefore, a reservoir ultrasonic negative pressure plugging removal device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the shortcomings of the prior art, the utility model provides a reservoir ultrasonic negative pressure plugging removal device, which has the advantages of convenient guiding and transportation, solves the problem that the ultrasonic plugging removal tool in the prior art is transported into the well through the cable during use, and due to the lack of a guiding mechanism, the ultrasonic transducer is prone to shaking during transportation, which may collide with the well wall, causing damage to the ultrasonic transducer and causing inconvenience.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a reservoir ultrasonic wave negative pressure plug removal device, including the installation board that sets up in the inside of oil well, the bottom fixed mounting of installation board has ultrasonic transducer, the outside of installation board is provided with sliding mechanism,

[0007] Sliding mechanism includes two connecting plates that are arranged on both sides of installation board respectively, the outside of two connecting plates all is rotatably installed with pulley, the top fixed mounting of installation board has fixed box, and the adjusting device is arranged between fixed box and connecting plate,

[0008] Adjusting device includes drive motor, the output shaft of drive motor is connected with connecting shaft, and the left and right two ends of connecting shaft are all fixedly connected with screw rod, the outside of screw rod is equipped with screw sleeve, the bottom fixed connection of screw sleeve has installation rod, and installation rod extends to the outside of fixed box and is fixedly connected with connecting plate.

[0009] Further, the bottom of the installation plate is fixedly connected with a sleeve, one side of the connecting plate close to the sleeve is fixedly connected with a guide rod, and the guide rod extends to the inside of the sleeve.

[0010] Further, the drive motor is fixedly installed on the top of the fixed box, and the screw rod and the connecting shaft are located in the inside of the fixed box.

[0011] Further, the output shaft of the drive motor is fixedly installed with a main gear, the outer wall of the connecting shaft is fixedly installed with a secondary gear, and the main gear and the secondary gear are engaged.

[0012] Further, one end of the screw rod away from the connecting shaft is connected with the inner wall of the fixed box through a bearing, and the threads of the two screw rods are oppositely arranged.

[0013] Further, the bottom of the installation rod is fixedly connected with a sliding block, the inside of the fixed box is fixedly installed with a guide rail, and the sliding block is slidingly connected to the inside of the guide rail.

[0014] Further, one end of the guide rod located in the inside of the sleeve is fixedly connected with a supporting block, a spring is sleeved on the outer wall of the guide rod, and the two ends of the spring are respectively abutted with the inner wall of the sleeve and the supporting block.

[0015] Compared with the prior art, the utility model provides a reservoir ultrasonic wave negative pressure plug removal device, which has the following beneficial effects:

[0016] 1. The reservoir ultrasonic negative pressure plug removal device, the cable traction mounting plate is used for conveying the ultrasonic transducer to the inside of the oil well for plug removal work, in the process of conveying downward, the driving motor is operated to drive the connecting shaft to rotate, and the two side lead screws are driven to rotate, so that the two threaded sleeves are moved towards each other, and the mounting rod is moved, so that the two connecting plates are moved towards each other, the distance between the two connecting plates is adjusted according to the inner width of the oil well, so that the pulley is in contact with the inner wall of the oil well, the pulley is rolled along the inner wall of the oil well to guide the conveying of the ultrasonic transducer, and the ultrasonic transducer is prevented from colliding with the inner wall of the oil well during use, thereby facilitating use.

[0017] 2. The reservoir ultrasonic negative pressure plug removal device, the driving motor is operated to adjust the distance between the two connecting plates, so as to adapt to oil wells of different widths, and the application range of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a sectional view of the utility model structure;

[0019] Fig. 2 It is a structure schematic view of the sliding mechanism of the utility model;

[0020] Fig. 3 It is a structure schematic view of the pulley of the utility model.

[0021] In the drawing: 1, oil well; 2, mounting plate; 3, ultrasonic transducer; 4, fixed box; 5, connecting plate; 6, pulley; 7, driving motor; 8, connecting shaft; 9, lead screw; 10, threaded sleeve; 11, mounting rod; 12, sleeve; 13, guide rod; 14, support block; 15, spring; 16, main gear; 17, auxiliary gear; 18, sliding block; 19, guide rail. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only 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 protection scope of the utility model.

[0023] Please refer to Figs. 1 to 3 A reservoir ultrasonic negative pressure plug removal device in the embodiment comprises a mounting plate 2 arranged in the inside of an oil well 1, and an ultrasonic transducer 3 is fixedly installed at the bottom of the mounting plate 2.

[0024] In the embodiment, the outer side of the mounting plate 2 is provided with a sliding mechanism, the sliding mechanism comprises two connecting plates 5 arranged on the two sides of the mounting plate 2 respectively, pulleys 6 are rotatably arranged on the outer sides of the two connecting plates 5 respectively, and a fixed box 4 is fixedly arranged on the top of the mounting plate 2.

[0025] The bottom of the mounting plate 2 is fixedly connected with a sleeve 12, the side, close to the sleeve 12, of the connecting plate 5 is fixedly connected with a guide rod 13, the guide rod 13 extends into the sleeve 12, one end of the guide rod 13, located in the sleeve 12, is fixedly connected with a supporting block 14, a spring 15 is sleeved on the outer wall of the guide rod 13, and the two ends of the spring 15 are respectively abutted against the inner wall of the sleeve 12 and the supporting block 14.

[0026] In the embodiment, the fixed box 4 and the connecting plate 5 are provided with an adjusting device, the adjusting device comprises a driving motor 7, the driving motor 7 is fixedly arranged on the top of the fixed box 4, the output shaft of the driving motor 7 is in transmission connection with a connecting shaft 8, the left and right ends of the connecting shaft 8 are fixedly connected with lead screws 9, the lead screws 9 and the connecting shaft 8 are located in the fixed box 4, one end of the lead screw 9, away from the connecting shaft 8, is connected with the inner wall of the fixed box 4 through a bearing, a threaded sleeve 10 is screwedly arranged on the outer side of the lead screw 9, the bottom of the threaded sleeve 10 is fixedly connected with a mounting rod 11, and the mounting rod 11 extends to the outside of the fixed box 4 and is fixedly connected with the connecting plate 5.

[0027] The output shaft of the driving motor 7 is fixedly connected with a main gear 16, the outer wall of the connecting shaft 8 is fixedly connected with a secondary gear 17, the main gear 16 and the secondary gear 17 are in meshing, the bottom of the mounting rod 11 is fixedly connected with a sliding block 18, the inside of the fixed box 4 is fixedly connected with a guide rail 19, and the sliding block 18 is slidingly connected to the inside of the guide rail 19, thereby playing a guiding role.

[0028] It should be noted that the threads of the two lead screws 9 are oppositely arranged, and when the two lead screws 9 rotate, the two threaded sleeves 10 can move towards each other.

[0029] The working principle of the above embodiment is as follows:

[0030] In use, the mounting plate 2 is pulled by the cable, the ultrasonic transducer 3 is conveyed into the oil well 1 to perform the plugging removal work, in the conveying process, the driving motor 7 is driven to rotate the connecting shaft 8 and the lead screws 9 on the two sides, so that the two threaded sleeves 10 move towards each other, the mounting rod 11 is driven to move, and the two connecting plates 5 move towards each other, the distance between the two connecting plates 5 is adjusted according to the inner width of the oil well 1, the pulley 6 is in contact with the inner wall of the oil well 1, the ultrasonic transducer 3 is guided and conveyed by rolling along the inner wall of the oil well 1, the ultrasonic transducer 3 is prevented from colliding with the inner wall of the oil well 1 in use, and the use is facilitated.

[0031] The mounting mode, connecting mode or setting mode disclosed in the embodiment are common mechanical modes, and can be implemented as long as the beneficial effects can be achieved, in addition, the electrical elements appearing in the text are electrically connected with the master controller and the power supply, the master controller is a conventional known device, and the existing disclosed power connection technology also belongs to the common knowledge in the art, therefore, the specific structure composition and working principle will not be described too much.

[0032] It should be noted that, in this paper, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0033] It should be noted that, in this paper, the relationship terms such as first and second 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 the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the sentence "including a" does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0034] Although the embodiments of the present application have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A reservoir ultrasonic negative pressure plug removal device, comprising a mounting plate (2) arranged inside an oil well (1), an ultrasonic transducer (3) being fixedly mounted at the bottom of the mounting plate (2), characterized in that: The outer side of the mounting plate (2) is provided with a sliding mechanism; The sliding mechanism comprises two connecting plates (5) provided on the two sides of the mounting plate (2), respectively, the outer sides of the two connecting plates (5) are rotatably provided with pulleys (6), the top of the mounting plate (2) is fixedly provided with a fixed box (4), and the fixed box (4) is provided with an adjusting device between the connecting plate (5). The adjusting device comprises a driving motor (7), the output shaft of the driving motor (7) is drivingly connected with a connecting shaft (8), the left and right ends of the connecting shaft (8) are fixedly connected with lead screws (9), the outer side of the lead screw (9) is threadedly provided with a threaded sleeve (10), the bottom of the threaded sleeve (10) is fixedly connected with a mounting rod (11), and the mounting rod (11) extends to the outside of the fixed box (4) and is fixedly connected with the connecting plate (5).

2. The reservoir ultrasonic negative pressure plug removal device of claim 1, wherein: The bottom of the mounting plate (2) is fixedly connected with a sleeve (12), one side of the connecting plate (5) close to the sleeve (12) is fixedly connected with a guide rod (13), and the guide rod (13) extends to the inside of the sleeve (12).

3. The reservoir ultrasonic negative pressure plug removal device of claim 1, wherein: The driving motor (7) is fixedly installed on the top of the fixed box (4), and the lead screw (9) and the connecting shaft (8) are located in the inside of the fixed box (4).

4. The reservoir ultrasonic negative pressure plug removal device of claim 1, wherein: The output shaft of the driving motor (7) is fixedly provided with a main gear (16), the outer wall of the connecting shaft (8) is fixedly provided with a secondary gear (17), and the main gear (16) and the secondary gear (17) are in engagement.

5. The reservoir ultrasonic negative pressure unblocking device according to claim 1, characterized in that: The end of the lead screw (9) away from the connecting shaft (8) is connected with the inner wall of the fixed box (4) through a bearing, and the threads of the two lead screws (9) are oppositely arranged.

6. The reservoir ultrasonic negative pressure unblocking device according to claim 1, characterized in that: The bottom of the mounting rod (11) is fixedly connected with a sliding block (18), the inside of the fixed box (4) is fixedly provided with a guide rail (19), and the sliding block (18) is slidingly connected to the inside of the guide rail (19).

7. The reservoir ultrasonic negative pressure unblocking device according to claim 2, characterized in that: The end of the guide rod (13) located in the inside of the sleeve (12) is fixedly connected with a supporting block (14), the outer wall of the guide rod (13) is sleeved with a spring (15), and the two ends of the spring (15) are respectively abutted with the inner wall of the sleeve (12) and the supporting block (14).

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