Homogenizing reaction kettle for well cementation admixture

Abstract

The utility model relates to the technical field of petrochemical engineering, in particular to a well cementation admixture homogenizing reaction kettle. The well cementation admixture homogenization reaction kettle comprises a tank body, a supporting seat is fixedly installed at the bottom end of the tank body, first hydraulic cylinders are symmetrically installed on the supporting seat, a sealing cover is fixedly installed at the telescopic end of each first hydraulic cylinder, a feeding pipe is embedded in each sealing cover, and a discharging pipe is installed in the middle of the bottom end of the tank body. The hollow pipe is rotationally mounted on the sealing cover, a plurality of stirring rods are uniformly mounted at the end, extending into the tank body, of the hollow pipe, and nozzles are mounted at the ends, deviating from the hollow pipe, of the stirring rods; and the number of the second hydraulic cylinders is two, the two second hydraulic cylinders are symmetrically embedded in the edge of the sealing cover, guide rods are fixedly installed at the telescopic ends of the two second hydraulic cylinders, and the bottom ends of the guide rods penetrate through the sealing cover and are fixedly provided with scraper rings. The well cementation admixture homogenizing reaction kettle provided by the utility model has the advantages that the inner wall adhesion can be reduced, and the stirring is uniform and sufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of petrochemical industry, in particular to a homogenizing reaction kettle for cementing admixture. Background Art

[0002] Cementing admixtures play a vital role in the development of oil and gas fields. They can not only enhance the performance of cement stone, but also improve the rheology and stability of cement slurry, thereby improving the productivity and safety of oil wells. For example, adding fluid loss reducer to drilling fluid can effectively prevent well wall collapse and oil layer pollution; adding retarder to cement slurry can extend the setting time of cement slurry and facilitate construction operation; adding weighting agent can improve the stability and bearing capacity of well wall.

[0003] Before adding the admixture, it is necessary to use a reactor to fully stir it and mix it evenly in real time so that the admixture can exert the maximum effect. However, when the existing reactor is stirring, when different admixtures are mixed, the dry powder is easy to adhere to the inner wall of the reactor, causing adhesion, thereby affecting the uniformity of stirring and mixing.

[0004] Therefore, it is necessary to provide a cementing admixture homogenization reactor to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a cementing admixture homogenizing reaction kettle which can reduce the adhesion of the inner wall and stir the mixture evenly and fully.

[0006] The cementing admixture homogenization reactor provided by the utility model comprises: a tank body, a support seat is fixedly installed at the bottom end of the tank body, a hydraulic cylinder 1 is symmetrically installed on the support seat, a sealing cover is fixedly installed at the telescopic end of the hydraulic cylinder 1, a feeding pipe is embedded on the sealing cover, and a discharge pipe is installed in the middle of the bottom end of the tank body;

[0007] The hollow tube is rotatably mounted on the sealing cover, and a plurality of stirring rods are evenly mounted on one end of the hollow tube extending into the tank body, a nozzle is mounted on the end of the stirring rod away from the hollow tube, a one-way valve is embedded in the nozzle, a through hole for connecting the nozzle and the hollow tube is opened on the stirring rod, a blocking rod is fixedly mounted on the bottom of the hollow tube, and a servo motor for driving the hollow tube to rotate is mounted on the sealing cover;

[0008] Hydraulic cylinder 2 is provided with two groups, and the two groups of hydraulic cylinder 2 are symmetrically embedded in the edge of the sealing cover, and the telescopic ends of the two groups of hydraulic cylinder 2 are fixedly installed with guide rods, and the bottom ends of the guide rods pass through the sealing cover and are fixedly installed with scraper rings, and the outer wall of the scraper ring is slidably matched with the inner wall of the tank body.

[0009] Preferably, a driving motor is fixedly mounted on the bottom end of the discharge pipe, a spiral conveying rod is fixedly mounted on the output end of the driving motor, a discharge pipe is mounted on one side of the bottom end of the discharge pipe, and a control valve is embedded in the discharge pipe.

[0010] Preferably, a gate valve is installed on the feeding pipe, and a switching sleeve is installed on the top end of the feeding pipe, and a plurality of feeding pipes are inserted into the switching sleeve.

[0011] Preferably, a support frame is fixedly mounted on the middle part of the top end of the sealing cover, a liquid injection pipe is fixedly mounted on the support frame, and the bottom end of the liquid injection pipe is rotatably connected to the hollow tube.

[0012] Preferably, an electric heating rod is fixedly mounted on the bottom end of the liquid injection pipe.

[0013] Preferably, a plurality of scrapers are evenly mounted on the bottom end of the blocking rod, and the scrapers are slidably connected to the bottom of the tank body.

[0014] Preferably, a groove is formed on the tank wall of the tank body, and an electromagnetic coil is spirally installed in the groove.

[0015] Compared with the related art, the cementing admixture homogenization reactor provided by the utility model has the following beneficial effects:

[0016] 1. The utility model provides a cementing admixture homogenizing reactor, which is provided with a stirring rod on a hollow tube and a nozzle at the front end of the stirring rod, so that the liquid admixture can be injected into the tank body during stirring, so that the liquid admixture and the powdered admixture in the tank body are stirred more evenly with the rotation of the stirring rod;

[0017] 2. By arranging a second hydraulic cylinder on the sealing cover, the second hydraulic cylinder is connected to the scraper ring through a guide rod. In this way, during stirring, the scraper ring is driven to slide up and down along the inner wall of the tank body, thereby preventing the admixture from clumping and adhering to the tank wall, thereby improving the mixing quality of the admixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural schematic diagram of a preferred embodiment of a cementing admixture homogenization reaction kettle provided by the utility model;

[0019] Figure 2 A schematic diagram of a half-section structure of a cementing admixture homogenization reactor provided by the utility model;

[0020] Figure 3 This is a schematic diagram of the axial section structure of the cementing admixture homogenization reactor provided by the utility model;

[0021] Figure 4 This is a structural schematic diagram of an electromagnetic coil installed in a tank body provided by the utility model.

[0022] Numbers in the figure: 1. Tank body; 11. Discharge pipe; 12. Drive motor; 13. Screw conveyor rod; 14. Discharge pipe; 15. Control valve; 101. Groove; 2. Support seat; 21. Hydraulic cylinder one; 3. Sealing cover; 31. Feeding pipe; 311. Gate valve; 312. Adapter sleeve; 313. Feeding pipe; 32. Support frame; 33. Liquid injection pipe; 34. Electric heating rod; 4. Hollow tube; 41. Stirring rod; 42. Nozzle; 43. Sealing rod; 44. Scraper; 5. Servo motor; 6. Hydraulic cylinder two; 7. Guide rod; 8. Scraper ring; 9. Electromagnetic coil. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0025] Embodiment 1

[0026] See also Figures 1 to 3 The first embodiment provides a cementing admixture homogenizing reactor, the cementing admixture homogenizing reactor comprising:

[0027] A tank body 1, a support base 2 is fixedly installed at the bottom end of the tank body 1, a hydraulic cylinder 21 is symmetrically installed on the support base 2, a sealing cover 3 is fixedly installed at the telescopic end of the hydraulic cylinder 21, a feeding pipe 31 is embedded on the sealing cover 3, and a discharge pipe 11 is installed in the middle of the bottom end of the tank body 1;

[0028] The hollow tube 4 is rotatably mounted on the sealing cover 3, and a plurality of stirring rods 41 are evenly mounted on one end of the hollow tube 4 extending into the tank body 1, a nozzle 42 is mounted on one end of the stirring rod 41 away from the hollow tube 4, a one-way valve is embedded in the nozzle 42, and a through hole for connecting the nozzle 42 and the hollow tube 4 is opened on the stirring rod 41, a blocking rod 43 is fixedly mounted on the bottom of the hollow tube 4, and a servo motor 5 for driving the hollow tube 4 to rotate is mounted on the sealing cover 3;

[0029] There are two groups of hydraulic cylinders 6, which are symmetrically embedded in the edges of the sealing cover 3, and the telescopic ends of the two groups of hydraulic cylinders 6 are fixedly installed with guide rods 7, and the bottom ends of the guide rods 7 pass through the sealing cover 3 and are fixedly installed with scraper rings 8, and the outer wall of the scraper ring 8 is slidably matched with the inner wall of the tank body 1.

[0030] Among them, a support frame 32 is fixedly installed in the middle of the top of the sealing cover 3, a liquid injection pipe 33 is fixedly installed on the support frame 32, the bottom end of the liquid injection pipe 33 is rotatably connected to the hollow tube 4, and an electric heating rod 34 is fixedly installed at the bottom end of the liquid injection pipe 33.

[0031] It should be noted that: when in use, the solid additive is introduced into the tank body 1 through the feeding pipe 31, and then the liquid additive is connected to the liquid injection pipe 33 through the delivery pump, and the liquid additive is sprayed into the tank body 1 through the hollow tube 4, the stirring rod 41 and the nozzle 42. It is pressurized during injection. In this way, when the servo motor 5 is started to drive the hollow tube 4 to drive the stirring rod 41 to stir, the pressurized liquid impacts the inner wall of the tank body 1. The impact of the liquid improves the stirring effect of the additive. When the liquid is injected, it is necessary to increase the internal temperature of the tank body 1. When the stirring reaction speed is added, the electric heating rod 34 is started to heat the liquid flowing through the hollow tube 4, thereby increasing the internal reaction temperature of the tank body 1. Further, during stirring, the hydraulic cylinder 2 6 is controlled to drive the guide rod 7 to move up and down along the sealing cover 3. When the guide rod 7 moves up and down, the scraper ring 8 is driven to move up and down in the tank body 1, thereby scraping off the additive mass adhered to the inner wall of the tank body 1 to avoid adhesion, so that the stirring of the additive is more uniform and sufficient.

[0032] In the embodiments of the present invention, please refer to Figures 1 to 3 A driving motor 12 is fixedly installed at the bottom end of the discharge pipe 11, a spiral conveying rod 13 is fixedly installed at the output end of the driving motor 12, a discharge pipe 14 is installed at one side of the bottom end of the discharge pipe 11, and a control valve 15 is embedded in the discharge pipe 14;

[0033] It should be noted that when the material needs to be discharged after being uniformly stirred, the control valve 15 is opened, and then the drive motor 12 is started to drive the screw conveying rod 13 to rotate, and the additives falling into the discharge pipe 11 can be discharged through the discharge pipe 14.

[0034] In the embodiments of the present invention, please refer to Figures 1 to 3 The feeding pipe 31 is provided with a gate valve 311, and a transfer sleeve 312 is provided at the top of the feeding pipe 31, and a plurality of feeding pipes 313 are inserted into the transfer sleeve 312;

[0035] It should be noted that when multiple solid or powdered additives need to be added at the same time, the additives can be added one by one through the feed pipe 313 on the adapter sleeve 312. After adding, the tank body 1 can be sealed by closing the gate valve 311 to achieve sealed stirring and improve the stirring uniformity of the additives.

[0036] In the embodiments of the present invention, please refer to Figures 1 to 4, a plurality of scrapers 44 are evenly installed at the bottom end of the blocking rod 43, and the scrapers 44 are slidably connected to the bottom of the tank body 1;

[0037] It should be noted that when the hollow tube 4 drives the blocking rod 43 to rotate, the blocking rod 43 synchronously drives a plurality of scrapers 44 to scrape the bottom of the inner cavity of the tank body 1. In this way, the bottom of the tank body 1 can be stirred synchronously during stirring to avoid uneven stirring caused by solid precipitation.

[0038] Embodiment 2

[0039] This embodiment 1 is based on the embodiment 2. Figures 1 to 4 The tank wall of the tank body 1 is provided with a groove 101 , and an electromagnetic coil 9 is spirally installed in the groove 101 .

[0040] It should be noted that when high-temperature heating, stirring and homogenization are required, the electromagnetic coil 9 can be energized to heat the entire tank body 1 to achieve high-temperature heating and stirring.

[0041] The working principle of the cementing admixture homogenization reactor provided by the utility model is as follows:

[0042] When in use, the solid additive is introduced into the tank body 1 through the feeding pipe 31, and then the liquid additive is connected to the liquid injection pipe 33 through the delivery pump, and the liquid additive is sprayed into the tank body 1 through the hollow tube 4, the stirring rod 41 and the nozzle 42. It is pressurized during injection. In this way, when the servo motor 5 is started to drive the hollow tube 4 to drive the stirring rod 41 to stir, the pressurized liquid impacts the inner wall of the tank body 1, and the impact of the liquid improves the stirring effect of the additive. When the liquid is injected, it is necessary to increase the internal temperature of the tank body 1. When the stirring reaction speed is added, the electric heating rod 34 is started to heat the liquid flowing through the hollow tube 4, thereby increasing the internal reaction temperature of the tank body 1. Further, during stirring, the hydraulic cylinder 2 6 is controlled to drive the guide rod 7 to move up and down along the sealing cover 3. When the guide rod 7 moves up and down, the scraper ring 8 is driven to move up and down in the tank body 1, thereby scraping off the additive mass adhered to the inner wall of the tank body 1 to avoid adhesion, so that the stirring of the additive is more uniform and sufficient;

[0043] When the material needs to be discharged after being stirred evenly, the control valve 15 is opened, and then the driving motor 12 is started to drive the screw conveying rod 13 to rotate, and the additives falling into the discharge pipe 11 can be discharged through the discharge pipe 14.

[0044] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0045] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A cementing admixture homogenization reactor, comprising: A tank body (1), wherein a support seat (2) is fixedly mounted on the bottom end of the tank body (1), a hydraulic cylinder (21) is symmetrically mounted on the support seat (2), a sealing cover (3) is fixedly mounted on the telescopic end of the hydraulic cylinder (21), a feeding pipe (31) is embedded on the sealing cover (3), and a discharge pipe (11) is mounted in the middle of the bottom end of the tank body (1); It is characterized by further comprising: The hollow tube (4) is rotatably mounted on the sealing cover (3), and a plurality of stirring rods (41) are evenly mounted on one end of the hollow tube (4) extending into the tank body (1), a nozzle (42) is mounted on one end of the stirring rod (41) away from the hollow tube (4), a one-way valve is embedded in the nozzle (42), the stirring rod (41) is provided with a through hole for connecting the nozzle (42) and the hollow tube (4), a blocking rod (43) is fixedly mounted on the bottom of the hollow tube (4), and a servo motor (5) for driving the hollow tube (4) to rotate is mounted on the sealing cover (3); The hydraulic cylinders (6) are provided in two groups. The two groups of hydraulic cylinders (6) are symmetrically embedded in the edges of the sealing cover (3). The telescopic ends of the two groups of hydraulic cylinders (6) are fixedly mounted with guide rods (7). The bottom ends of the guide rods (7) pass through the sealing cover (3) and are fixedly mounted with scraper rings (8). The outer wall of the scraper ring (8) is slidably matched with the inner wall of the tank body (1).

2. The cementing admixture homogenization reactor according to claim 1, characterized in that: A driving motor (12) is fixedly mounted on the bottom end of the discharge pipe (11), a spiral conveying rod (13) is fixedly mounted on the output end of the driving motor (12), a discharge pipe (14) is mounted on one side of the bottom end of the discharge pipe (11), and a control valve (15) is embedded in the discharge pipe (14).

3. The cementing admixture homogenization reactor according to claim 1, characterized in that: The feeding pipe (31) is installed with a gate valve (311), and a transfer sleeve (312) is installed at the top end of the feeding pipe (31), and a plurality of feeding pipes (313) are inserted into the transfer sleeve (312).

4. The cementing admixture homogenization reactor according to claim 1, characterized in that: A support frame (32) is fixedly mounted in the middle of the top end of the sealing cover (3), a liquid injection pipe (33) is fixedly mounted on the support frame (32), and the bottom end of the liquid injection pipe (33) is rotatably connected to the hollow pipe (4).

5. The cementing admixture homogenization reactor according to claim 4, characterized in that: An electric heating rod (34) is fixedly mounted on the bottom end of the liquid injection pipe (33).

6. The cementing admixture homogenization reactor according to claim 1, characterized in that: A plurality of scrapers (44) are evenly mounted on the bottom end of the blocking rod (43), and the scrapers (44) are slidably connected to the bottom of the tank body (1).

7. The cementing admixture homogenization reactor according to claim 1, characterized in that: The tank wall of the tank body (1) is provided with a groove (101), and an electromagnetic coil (9) is spirally installed in the groove (101).

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