Production equipment for preparing oil well cement expanding agent
By designing a production equipment for preparing cement expansion agent for oil wells, drying and heating blocks are used to solve the problem of easy agglomeration of breast expansion agents, achieving uniform heating and heat transfer efficiency of materials, ensuring the configuration of cement slurry continuity and accuracy of breast swelling dosage.
Patent Information
- Application Number
- CN202420678616.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-03
AI Technical Summary
The powdered oil well cement expansion agent is prone to absorb water and agglomeration, resulting in clogging of the discharge port of the expansion agent additive, affecting the continuity of the cement slurry configuration and the accuracy of the expansion agent dosage.
A production equipment for the preparation of cement expansion agent of oil wells is designed, including two connected cylindrical tanks, equipped with a stirring shaft, heating block and scraper. Through drying and uniform heating, the material is avoided and blocked, ensuring that Heat transfer efficiency and heating uniformity.
It effectively avoids the agglomeration of expansion agent, improves the uniform heat receiving and heat transfer efficiency of the material, ensures the continuous configuration of cement slurry and the accuracy of the expansion agent dosage, and improves the stability of the cementing process.
Smart Images
Figure CN222231233U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field, in particular to production equipment for preparing oil well cement expansion agent. Background Art
[0002] Cementing is an important and indispensable part of drilling operations. The main process includes casing installation and cement injection. The purpose of cementing is to seal the annular space between the casing and the well wall to form a cement ring with high compressive strength and high bonding ability to prevent underground fluids from flowing along the cement ring in the well.
[0003] Oil well cement expansion agent is added to cement slurry to prevent gas channeling and avoid shrinkage and cracking of oil well cement ring. The content of expansion agent affects the cementing effect of cement slurry. Therefore, the amount of expansion agent added must be strictly controlled according to the formula ratio during operation. However, since powdered cement expands and easily absorbs water and agglomerates, the discharge port of the expansion agent adder is easily blocked during the preparation of cement slurry, which in turn causes the interruption of cement slurry preparation or seriously affects the accuracy of expansion agent addition.
[0004] Therefore, a production equipment for preparing oil well cement expansion agent is proposed. During the expansion agent processing, drying treatment is carried out, which is beneficial to avoid storage agglomeration of the expansion agent, increase heat transfer, and facilitate uniform heating of the material. Utility Model Content
[0005] The utility model aims to overcome the deficiencies of the prior art and provide a production device for preparing an oil well cement expansion agent. During the expansion agent processing, a drying treatment is performed, which is beneficial to increasing heat transfer and facilitating uniform heating of materials.
[0006] The purpose of this utility model is achieved through the following technical solutions:
[0007] The production equipment for preparing oil well cement expansion agent comprises a tank body, wherein the tank body is in the shape of two cylindrical tank bodies connected in parallel, and the insides of the two cylindrical tank bodies are communicated; a cover body is provided on the top of the tank body, and a stirring shaft is respectively provided in the middle of the two cylindrical tank bodies, and the top of the stirring shaft is rotatably mounted on the cover body; a feed port is provided on the top of the cover body, and a discharge port is provided at the bottom of the tank body, and a discharge valve is provided at the discharge port; a heating block is provided on the side wall of the tank body.
[0008] In a preferred embodiment of the present scheme, two meshing gears are provided on the top of the cover body, and a transmission shaft is respectively provided on the top of the two gears, and the output end of a motor is provided on the top of one of the transmission shafts, and the motor is fixedly mounted on the cover body through a frame; the two transmission shafts are respectively connected to the stirring shaft through a belt.
[0009] In a preferred embodiment of the present invention, the two gears have equal diameters, so that the two stirring shafts rotate at the same speed and in opposite directions, which is beneficial to uniform mixing of the materials.
[0010] In a preferred embodiment of this scheme, the two cylindrical tank bodies are respectively provided with a discharge port at the center of the bottom, and the connection surface between the discharge port and the bottom of the tank body is an inclined surface, so that the discharge port is located at the lowest point of the tank body, which is convenient for discharging the material in the tank body.
[0011] In a preferred embodiment of the present invention, two feed ports are provided on the top of the tank body, and the two feed ports are located at the tops of the two cylindrical tank bodies respectively, so as to facilitate the addition of materials.
[0012] In a preferred embodiment of the present solution, the heating blocks are arranged on both sides of the two cylindrical tanks and isolated from the interior of the tanks by heat-conducting baffles.
[0013] In a preferred embodiment of the present invention, the stirring shaft is provided with a plurality of stirring rods, and the ends of the stirring rods are provided with scrapers. The design of the scrapers can prevent the material from adhering to the side wall and affecting the drying effect.
[0014] In a preferred embodiment of the present invention, the stirring shaft is provided with a mounting seat, one end of the stirring rod is transversely mounted on the mounting seat by bolts, and a scraper is fixed to the other end of the stirring rod by bolts. The scraper can scrape off the material with viscosity on the side wall of the tank.
[0015] In a preferred embodiment of this scheme, a heat-insulating layer is further provided on the outside of the tank body, which is beneficial to heat preservation inside the tank body, drying materials, and saving heat energy.
[0016] The beneficial effects of the utility model are as follows: (1) the present solution forms the overall shape of the device through two interconnected cylindrical tanks, and a stirring shaft is respectively arranged at the center of the two cylindrical tanks, so that the present solution is conducive to increasing the material processing capacity; in addition, heating blocks can be arranged on the walls of the two cylindrical tanks to heat and dry the materials, so that the present solution device has a larger heat transfer area, which is conducive to increasing heat transfer and facilitating rapid drying of the materials;
[0017] (2) In this solution, a scraper is provided at the outer end of the stirring shaft, which can scrape off the material adhering to the inner wall of the tank body, thereby facilitating uniform heating of the material. In addition, the scraper of this solution is detachable and can be easily replaced after damage, thereby reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the utility model;
[0019] Figure 2 It is a schematic top view of the outline of the tank body of the utility model. DETAILED DESCRIPTION
[0020] The technical solution of the present utility model is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present utility model is not limited to the following.
[0021] like Figure 1 , Figure 2 As shown, the production equipment for preparing oil well cement expansion agent includes a cover body and a tank body 1 formed by two cylindrical tank bodies connected in parallel, and the two cylindrical tank bodies are internally connected; a feed port 4 is provided on the top of the cover body 2, and the cover body 2 is detachably arranged on the top of the tank body 1, and a discharge port 5 is provided at the bottom of the tank body 1, and a discharge valve is provided at the discharge port 5; a plurality of supporting feet are also provided at the bottom of the tank body 1.
[0022] Meanwhile, in this embodiment, a stirring shaft 3 is respectively disposed in the middle of the two cylindrical tank bodies, the top of the stirring shaft 3 is rotatably mounted on the cover body 2, and a heating block 6 is disposed on the side wall of the tank body 1 to heat and dry the expansion agent in the tank body 1.
[0023] Further, refer to Figure 1 As shown, in this scheme, two gears 7 are rotatably installed on the top of the cover body 2, the two gears 7 are meshed with each other, and a transmission shaft is respectively provided on the top of the two gears 7, the top of one of the transmission shafts is transmission-connected to the output end of the motor 9, and the motor 9 is fixedly installed on the cover body 2 through a frame (not shown in the figure); the two transmission shafts are respectively transmission-connected to a stirring shaft 3 through a belt, so that the two stirring shafts 3 rotate at the same speed and in opposite directions.
[0024] In this embodiment, the stirring shaft 3 is provided with multiple stirring rods 301, and a scraper 302 is provided at the end of the stirring rod 301. The scraper 302 is in contact with the inner wall of the tank body 1 to facilitate scraping off the material with viscosity on the inner wall during the preparation process, thereby ensuring heat transfer efficiency and uniform heat transfer.
[0025] Furthermore, in this embodiment, the stirring shaft 3 is provided with a mounting seat, one end of the stirring rod 301 is transversely mounted on the mounting seat by bolts, and the scraper 302 is fixed to the other end of the stirring rod 301 by bolts.
[0026] Furthermore, in the present embodiment, a discharge port 5 is respectively disposed at the center of the bottom of the two cylindrical tank bodies, and the discharge port 5 is located at the lowest point of the tank body 1 to facilitate the discharge of materials.
[0027] In this embodiment, two feed ports 4 are provided on the top of the tank body 1 to facilitate the rapid addition of materials or the simultaneous addition of multiple materials.
[0028] Further, refer to Figure 1 , Figure 2As shown, the heating block 6 is arranged on both sides of the two cylindrical tank bodies, and a heat-conducting partition 8 is also arranged inside the tank body 1 to isolate it from the inside of the tank body 1 through the heat-conducting partition 8; an insulation layer is also arranged outside the tank body 1.
[0029] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.
Claims
1. A production equipment for preparing an oil well cement expansion agent, characterized in that: It comprises a tank body (1), wherein the tank body (1) is in the shape of two cylindrical tank bodies connected in parallel, and the interiors of the two cylindrical tank bodies are connected; The top of the tank body (1) is provided with a cover body (2), and the middle of the two cylindrical tank bodies is provided with a stirring shaft (3), and the top of the stirring shaft (3) is rotatably mounted on the cover body (2); The top of the cover body (2) is provided with a feed inlet (4), the bottom of the tank body (1) is provided with a discharge port (5), and a discharge valve is provided at the discharge port (5); A heating block (6) is provided on the side wall of the tank body (1).
2. The production equipment for preparing oil well cement expansion agent according to claim 1, characterized in that: The top of the cover body (2) is provided with two meshing gears (7), the tops of the two gears (7) are respectively provided with a transmission shaft, and the top of one of the transmission shafts is provided with an output end of a motor (9), and the motor (9) is fixedly mounted on the cover body (2) through a frame; The two transmission shafts are respectively connected to the stirring shaft (3) in a corresponding transmission manner via a belt.
3. The production equipment for preparing oil well cement expansion agent according to claim 2, characterized in that: The two gears (7) have equal diameters so that the two stirring shafts (3) rotate at the same speed and in opposite directions.
4. The production equipment for preparing oil well cement expansion agent according to claim 3, characterized in that: The two cylindrical tank bodies are each provided with a discharge port (5) at the center of the bottom, and the connection surface between the discharge port (5) and the bottom of the tank body (1) is an inclined surface, so that the discharge port (5) is located at the lowest point of the tank body (1).
5. The production equipment for preparing oil well cement expansion agent according to claim 3, characterized in that: The top of the tank body (1) is provided with two feed inlets (4), and the two feed inlets (4) are respectively located at the tops of the two cylindrical tank bodies.
6. The production equipment for preparing oil well cement expansion agent according to claim 3, characterized in that: The heating blocks (6) are arranged on both sides of the two cylindrical tank bodies and are isolated from the interior of the tank body (1) by a heat-conducting partition plate (8).
7. The production equipment for preparing oil well cement expansion agent according to claim 3, characterized in that: The stirring shaft (3) is provided with a plurality of stirring rods (301), and the ends of the stirring rods (301) are provided with scrapers (302).
8. The production equipment for preparing oil well cement expansion agent according to claim 7, characterized in that: The stirring shaft (3) is provided with a mounting seat, one end of the stirring rod (301) is transversely mounted on the mounting seat by means of bolts, and the scraper (302) is fixed to the other end of the stirring rod (301) by means of bolts, and the material with viscosity on the side wall of the tank body (1) can be scraped off by the scraper.
9. The production equipment for preparing oil well cement expansion agent according to claim 8, characterized in that: The tank body (1) is also provided with a heat-insulating layer outside.