A device for preventing the sedimentation of lost circulation mud

Abstract

The utility model discloses a prevent the configuration device of leaking stoppage mud slurry deposition, include: the configuration box, its top is open setting and its inside is cylindrical structure, its top fixedly connected with the box cover, the top of box cover is embedded and is fixed with the feeding pipe, is equipped with the stopper on the feeding pipe screw thread cover, can add leaking stoppage mud slurry material to the inside of configuration box through the feeding pipe, the pipe, its bottom end is closed, rotates and is installed in the box cover, and its bottom end is located in the configuration box, the U -shaped scraper lever, fixedly connected in the first side of pipe, the utility model discloses through a series of structure's setting, can scrape and clean the leaking stoppage mud slurry of adhering in the process of configuration stirring mixture, and can make the mud slurry circulation flow in the inside of configuration box, cooperate multiple spray pipes and check valve and continue to spray the mud slurry in the inside simultaneously, can effectively avoid the situation that leaking stoppage mud slurry deposits in the inside of configuration box, reaches the effect of preventing the deposition.

Description

Technical Field

[0001] This utility model relates to the technical field of plugging mud preparation equipment, and in particular to a preparation device for preventing the sedimentation of plugging mud. Background Technology

[0002] To address well leakage problems, researchers have developed various new and efficient plugging materials and plugging mud systems, such as high filtration loss plugging materials, polymer gel plugging materials, expansive plugging materials, flexible plugging materials, and woolen plugging materials. These plugging materials require preparation, thus necessitating the use of preparation devices.

[0003] Because the concentration of plugging mud is relatively high, it is easy to precipitate when the concentration is higher than 40%. Existing plugging mud preparation devices usually only have a single stirring structure to stir the plugging mud. Under the action of centrifugal force, the plugging mud is thrown to the sides of the tank, which easily forms accumulation and then precipitation, affecting the uniformity of the preparation. Utility Model Content

[0004] The purpose of this invention is to provide a configuration device to solve the problem of sedimentation in plugging slurry.

[0005] To achieve the above objectives, this utility model provides a device for preventing the sedimentation of plugging slurry, comprising:

[0006] The configuration box has an opening at the top and a cylindrical structure inside. A box cover is fixedly connected to the top of the box cover, and a feeding pipe is embedded in the top of the box cover.

[0007] A rotating tube, its bottom end of which is closed, is rotatably mounted on the box cover, and its bottom end is located inside the configuration box;

[0008] A U-shaped scraper is fixedly connected to the first side of the rotating tube, and its top, bottom and side parts maintain a predetermined gap with the bottom of the box cover, the bottom of the configuration box and the side of the configuration box, respectively.

[0009] The spray anti-settling mechanism includes multiple sets, all of which are connected and fixed on the second side of the rotating pipe opposite to the first side;

[0010] The protective box has openings on its bottom and second side, and is fixedly connected to the top of the box cover. The top end of the rotating tube extends into the protective box.

[0011] A rotary drive mechanism is fixedly sleeved on the rotating tube and fixedly connected to the inner wall of the first side of the protective box;

[0012] The suction pump circulation mechanism is fixedly installed inside the protective box and communicates with the bottom of the first side of the configuration box.

[0013] Preferably, the spray anti-settling mechanism includes a plurality of spray pipes fixed on the second side of the rotating pipe and inclined downward at the ends. The spray pipes are connected to the rotating pipe, and the ends of the spray pipes are provided with one-way valves that allow one-way flow outward.

[0014] Preferably, the rotary drive mechanism includes a first gear fixedly sleeved on the rotating tube, a drive motor fixedly connected to the inner wall of the first side of the protective box, and a second gear fixedly connected to the bottom end of the output shaft of the drive motor, the second gear meshing with the first gear.

[0015] Preferably, the suction pumping circulation mechanism includes a high-pressure mud pump fixedly connected to the inner wall of the top of the protective box. The discharge end of the high-pressure mud pump is provided with a three-way pipe, and valves are provided at both the side and bottom ends of the three-way pipe. The valve at the side end is connected to a discharge pipe on its outer side, and the valve at the bottom end is provided with a connecting pipe at its bottom.

[0016] Preferably, two sealed bearings are fixedly sleeved inside the rotating tube, and the inner side of the inner ring of the sealed bearing is fixedly connected to the outer side of the connecting tube.

[0017] Preferably, the connecting pipe is rotatably and sealed inside the rotating pipe, the bottom of the first side of the configuration box is connected to the bottom of the U-shaped hose, and the extraction end of the high-pressure mud pump is connected to the top of the U-shaped hose.

[0018] Preferably, a storage battery is fixedly connected to the top inner wall of the protective box, and the storage battery is electrically connected to the drive motor and the high-pressure mud pump.

[0019] Preferably, the top of the configuration box is provided with an exhaust pipe.

[0020] The device for preventing the sedimentation of plugging mud provided by this utility model, through the cooperation of a rotary drive mechanism, a rotating pipe, a U-shaped scraper and a spray anti-sedimentation mechanism, can stir and mix the mud in the mixing tank. During the stirring process, the U-shaped scraper can scrape off the plugging mud material adhering to the inner wall of the mixing tank and the bottom of the tank cover, which can reduce the situation of mud material settling on the inner wall of the mixing tank.

[0021] By using a suction pump circulation mechanism in conjunction with the aforementioned rotary stirring process, the slurry inside the preparation tank can circulate. At the same time, multiple spray pipes and one-way valves continuously spray the slurry inside, effectively preventing the slurry from settling inside the preparation tank and achieving an anti-settling effect. Furthermore, the circulation combined with the internal spraying improves the uniformity of the slurry preparation process.

[0022] Through the above-mentioned series of structural designs, this utility model can scrape and clean the adhering plugging slurry during the mixing process, and can also allow the slurry inside the mixing tank to circulate. At the same time, with the help of multiple spray pipes and one-way valves, the slurry inside can be continuously sprayed, which can effectively prevent the plugging slurry from settling inside the mixing tank and achieve the effect of preventing sedimentation. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the configuration device for preventing sedimentation of plugging mud according to the present invention;

[0025] Figure 2 for Figure 1 A schematic diagram of the right-side structure of the configured device shown;

[0026] Figure 3 for Figure 1 A cross-sectional view of the configured device shown.

[0027] Figure 4 for Figure 3 A magnified structural diagram of part A in the middle.

[0028] Figures 1 to 4 The accompanying figure labels are as follows:

[0029] 1. Configuration box; 2. Box cover; 3. Rotary pipe; 4. Spray pipe; 5. One-way valve; 6. U-shaped scraper; 7. U-shaped hose; 8. Protective box; 9. First gear; 10. Second gear; 11. Drive motor; 12. High-pressure mud pump; 13. T-pipe; 14. Valve; 15. Discharge pipe; 16. Connecting pipe. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please refer to Figure 1-4In one specific embodiment, the device for preventing sedimentation of plugging slurry provided by this utility model includes the following parts:

[0032] The preparation box 1 has an opening at the top and an internal cylindrical structure, with a cover 2 fixedly connected to its top. A feeding pipe can be fitted and fixed to the top of the cover 2. A plug can be threaded onto the feeding pipe, with external threads on the outside of the feeding pipe and internal threads on the inside of the plug. The external and internal threads mesh, allowing the filling pipe to add sealing slurry material into the preparation box 1. An exhaust pipe can also be installed on the top of the preparation box 1 to expel air from inside, creating airflow balance.

[0033] Rotary tube 3 is rotatably installed inside the cover 2, with its bottom located inside the configuration box 1. Its bottom is closed, i.e., it has a sealing structure. Specifically, a circular hole can be opened on the top of the cover 2, and a first bearing is fixedly sleeved inside the circular hole. The inner side of the inner ring of the first bearing is fixedly connected to the outer side of the rotary tube 3, thereby realizing the rotational installation of the rotary tube 3 through the first bearing.

[0034] The U-shaped scraper 6 is fixedly connected to one side of the bottom of the rotating pipe 3. The top, bottom and side of the U-shaped scraper 6 maintain a predetermined gap with the bottom of the box cover 2, the bottom of the configuration box 1 and the side of the configuration box 1, respectively. The gap is close to zero but not zero. Specifically, it is appropriate to not hinder the U-shaped scraper 6 from rotating with the rotating pipe 3, and to effectively scrape and clean the sealing mud adhering to the bottom of the box cover 2, the bottom wall and the side wall of the configuration box 1.

[0035] The anti-sedimentation spraying mechanism consists of multiple sets of interconnected and fixed spray pipes 3 on one side, typically opposite the U-shaped scraper 6. Specifically, the anti-sedimentation spraying mechanism can be located on the left side of the rotating pipe 3, or the second side (with the side where the U-shaped scraper 6 is located as the right side, or the first side), and consists of several spray pipes 4 positioned at different heights on the rotating pipe 3, connected and fixed together. A one-way valve 5 with its left outlet is located at the left end of each spray pipe 4. The one-way valve 5 prevents the sealing slurry from directly entering the rotating pipe 3 from the spray pipe 4.

[0036] The protective box 8 has openings on its bottom and one side (e.g., the left side, or the second side) and is fixedly connected to the top of the cover 2. The top of the rotating tube 3 extends into the protective box 8.

[0037] A rotary drive mechanism is fixedly sleeved on the rotating tube 3 and fixedly connected to the inner wall of the other side (e.g., the right side, or the first side) of the protective box 8. The rotary drive mechanism includes a first gear 9 fixedly sleeved on the rotating tube 3, a drive motor 11 fixedly connected to the inner wall of the right side of the protective box 8, and a second gear 10 fixedly connected to the bottom end of the output shaft of the drive motor 11. The second gear 10 meshes with the first gear 9, thereby driving the rotating tube 3 to rotate through the cooperation of the first gear 9, the second gear 10 and the drive motor 11.

[0038] A suction pump circulation mechanism is fixedly installed inside the protective box 8 and is fixed and connected to the bottom of one side (e.g., the right side) of the configuration box 1. Specifically, the suction pump circulation mechanism may include a high-pressure mud pump 12 fixedly connected to the inner wall of the top of the protective box 8. A three-way pipe 13 is fixedly connected to the discharge end of the high-pressure mud pump 12. Valves 14 are provided at both the left and bottom ends of the three-way pipe 13. The left side of the valve 14 is also connected to a discharge pipe 15, which can be connected to an external delivery pipe. The two valves 14 allow for switching the discharge direction of the plugging mud, improving operational flexibility. A connecting pipe 16 is provided at the bottom of the valve 14. The connecting pipe 16 is rotatably and sealed within a rotating pipe 3. Two sealed bearings are fixedly fitted inside the rotating pipe 3. The inner ring of the sealed bearings is fixedly connected to the outer side of the connecting pipe 16, enabling the rotating installation of the connecting pipe 16. A U-shaped hose 7 is installed at the bottom of one side (e.g., the right side) of the configuration box 1. The extraction end of the high-pressure mud pump 12 is connected to the top of the U-shaped hose 7. The high-pressure mud pump 12 extracts the plugging mud inside the configuration box 1 through the U-shaped hose 7. The extracted mud is discharged through the transfer pipe 3 into multiple spray pipes 4 and discharged through multiple one-way valves 5.

[0039] A battery is fixedly connected to the top inner wall of the protective box 8. The battery is electrically connected to the drive motor 11 and the high-pressure mud pump 12, and the battery provides power to the drive motor 11 and the high-pressure mud pump 12. Through a series of structural settings, this utility model can scrape and clean the plugging mud adhering to it during the mixing process, and can also allow the mud inside the mixing box 1 to circulate. At the same time, with the help of multiple spray pipes 4 and one-way valves 5, the mud inside can be continuously sprayed, which can effectively prevent the plugging mud from settling inside the mixing box 1, thus achieving the effect of preventing sedimentation.

[0040] During use, the material can be added into the preparation box 1 through the feeding pipe. During the preparation process, the drive motor 11 and the high-pressure mud pump 12 are turned on. The output shaft of the drive motor 11 drives the second gear 10 to rotate. The second gear 10 drives the first gear 9 meshing with it to rotate. The first gear 9 drives the rotating pipe 3 to rotate. The rotating pipe 3 drives multiple spray pipes 4 and U-shaped scrapers 6 to rotate. During the rotation, the sealing mud material inside the preparation box 1 can be stirred and mixed. While the U-shaped scraper 6 is rotating, it scrapes against the inner wall of the preparation box 1 and the bottom of the box cover 2, which can remove the sealing mud material adhering to the inner wall of the preparation box 1 and the bottom of the box cover 2. By scraping and cleaning the adhering sealing mud material during the stirring process, the situation of sealing mud material settling on the inner wall of the preparation box 1 can be reduced.

[0041] When the high-pressure mud pump 12 is turned on, the valve 14 on the left side is closed, and the valve 14 at the bottom is open. At the same time, the high-pressure mud pump 12 extracts the plugging mud material inside the preparation box 1 through the U-shaped hose 7. The extracted plugging mud material is sprayed into the preparation box 1 through the three-way pipe 13, the bottom valve 14, the connecting pipe 16, the rotating pipe 3, multiple spray pipes 4, and multiple one-way valves 5 in sequence. The high-pressure mud pump 12 continuously extracts and discharges, so that the plugging mud material inside the preparation box 1 can circulate. Through the circulation, combined with the continuous spraying of the plugging mud inside the multiple spray pipes 4 and one-way valves 5, the situation of plugging mud settling inside the preparation box 1 can be effectively avoided, achieving the effect of anti-settling. Moreover, the circulation combined with the internal spraying can improve the uniformity of the plugging mud preparation process.

[0042] After configuration, when it is necessary to extract the plugging slurry inside the configuration box 1, connect the discharge pipe 15 to the external delivery pipe, close the bottom valve 14, and open the left valve 14 so that the plugging slurry pumped by the high-pressure slurry pump 12 is discharged to the outside through the three-way pipe 13, the left valve 14 and the discharge pipe 15 in sequence.

[0043] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0044] The above provides a detailed description of the configuration device for preventing sedimentation of plugging slurry provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A device for preventing sedimentation of plugging slurry, characterized in that, include: The configuration box (1) has an opening at the top and a cylindrical structure inside. A box cover (2) is fixedly connected to the top of the box cover (2), and a feeding pipe is embedded in the top of the box cover (2). The rotating tube (3) is closed at its bottom end and is rotatably installed on the box cover (2), with its bottom end located inside the configuration box (1); The U-shaped scraper (6) is fixedly connected to the first side of the rotating tube (3), and its top, bottom and side parts maintain a predetermined gap with the bottom of the box cover (2), the bottom of the configuration box (1) and the side of the configuration box (1), respectively. The spray anti-settling mechanism includes multiple sets, all of which are connected and fixed on the second side of the rotating pipe (3) opposite to the first side; The protective box (8) has openings on its bottom and second side, and is fixedly connected to the top of the box cover (2). The top end of the rotating tube (3) extends into the protective box (8). A rotary drive mechanism is fixedly sleeved on the rotating tube (3) and fixedly connected to the inner wall of the first side of the protective box (8); The suction pump circulation mechanism is fixedly installed inside the protective box (8) and communicates with the bottom of the first side of the configuration box (1).

2. The configuration device according to claim 1, characterized in that, The spray anti-settling mechanism includes multiple spray pipes (4) fixed on the second side of the rotating pipe (3) and with their ends inclined downwards. The spray pipes (4) are connected to the rotating pipe (3), and the ends of the spray pipes (4) are provided with one-way valves (5) that allow one-way flow outwards.

3. The configuration device according to claim 1, characterized in that, The rotary drive mechanism includes a first gear (9) fixedly sleeved on the rotating tube (3), a drive motor (11) fixedly connected to the inner wall of the first side of the protective box (8), and a second gear (10) fixedly connected to the bottom end of the output shaft of the drive motor (11), the second gear (10) meshing with the first gear (9).

4. The configuration device according to claim 3, characterized in that, The suction pump circulation mechanism includes a high-pressure mud pump (12) fixedly connected to the inner wall of the top of the protective box (8). The discharge end of the high-pressure mud pump (12) is provided with a three-way pipe (13). The side end and bottom end of the three-way pipe (13) are both provided with valves (14). The outer side of the valve (14) at the side end is connected to a discharge pipe (15), and the bottom of the valve (14) at the bottom end is provided with a connecting pipe (16).

5. The configuration device according to claim 4, characterized in that, Two sealed bearings are fixedly fitted inside the rotating tube (3), and the inner side of the inner ring of the sealed bearing is fixedly connected to the outer side of the connecting tube (16).

6. The configuration device according to claim 4, characterized in that, The connecting pipe (16) is sealed and rotatably installed inside the rotating pipe (3). The bottom of the first side of the configuration box (1) is connected to the bottom of the U-shaped hose (7). The extraction end of the high-pressure mud pump (12) is connected to the top of the U-shaped hose (7).

7. The configuration device according to claim 4, characterized in that, A battery is fixedly connected to the top inner wall of the protective box (8), and the battery is electrically connected to the drive motor (11) and the high-pressure mud pump (12).

8. The configuration device according to claim 1, characterized in that, The top of the configuration box (1) is provided with an exhaust pipe.

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