Oil-displacing agent synthesis reaction device

Abstract

The utility model relates to the technical field of oil displacement engineering processes, in particular to an oil displacement agent synthesis reaction device which comprises a main body reaction unit, an auxiliary strengthening unit, an energy management unit and an integrated control unit. The main body reaction unit comprises a reaction kettle and a stirring shaft, a kettle cover is mounted at the top of the reaction kettle, and the stirring shaft is vertically mounted in the reaction kettle; three feed ports are formed in the top of the reaction kettle, and a discharge port is formed in the bottom of the reaction kettle; the auxiliary strengthening unit comprises a vacuum pump, a vacuum tank, an air compressor, a gas storage tank, a circulating pipe and a circulating pump. The energy management unit comprises a heating medium storage box, a refrigerant storage box, a temperature sensor A and the like. The main body reaction unit can utilize a stirring shaft under the conditions of constant temperature and constant pressure, and simultaneously assists a vacuum system and a circulating sprayer and an energy control unit in an intensifying system to realize synthesis of the oil-displacing agent and active functional group addition and modification reaction, so that exploration of an oil-displacing agent synthesis process is completed, and a high-performance oil-displacing preparation product is obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of oil displacement engineering process, in particular to a surfactant type oil displacement agent synthesis reaction device under high temperature conditions. Background Art

[0002] Oil is a non-renewable resource. Most of the major domestic oil fields are in the late stage of water flooding, but more than half of the crude oil still remains underground. Relatively effective tertiary oil recovery technology is needed, which can increase crude oil production by 10%-20%. Polymer flooding, surfactant flooding, binary composite flooding, ternary composite flooding and heterogeneous composite flooding are the most widely used technologies in tertiary oil recovery. Among them, surfactants are an important component in these oil displacement agent systems. The performance characterization methods and results of oil displacement agents are important bases for judging whether tertiary oil recovery technology can be applied on site.

[0003] The emulsification performance of the oil displacement agent system is an important parameter to characterize the oil displacement efficiency, and the molecular structure of the surfactant is a key factor affecting the emulsification performance of the oil displacement agent. However, the properties of crude oil in oil field blocks vary greatly. In order to improve the recovery rate, it is often necessary to develop surfactants with specific functional group structures according to the properties of crude oil in the target block. Therefore, the exploration and synthesis of surfactants with specific functional group structures is imperative. At present, the reaction efficiency of the reactor of the relevant experimental device is low, lacks strengthening devices, and cannot achieve precise temperature control under high temperature and high pressure conditions. During the reaction process, it is impossible to add reaction materials continuously and accurately, which leads to low efficiency of the experimental process and poor repeatability of the results, which cannot meet the experimental needs. Summary of the invention

[0004] In order to solve the above problems, the utility model provides an oil displacement agent synthesis reaction device, which completes the synthesis of the oil displacement agent and the functional group addition and modification process under program control, greatly improving the efficiency. The technical solution adopted by the utility model is as follows:

[0005] An oil displacement agent synthesis reaction device comprises a main reaction unit, an auxiliary strengthening unit, an energy management unit and an integrated control unit;

[0006] The main reaction unit comprises a reactor and a stirring shaft. A reactor cover is installed on the top of the reactor, and the stirring shaft is vertically installed in the reactor. The top of the reactor is provided with three feed ports and the bottom is provided with a discharge port.

[0007] The auxiliary strengthening unit includes a vacuum pump, a vacuum tank, an air compressor, a gas storage tank, a circulation pipe and a circulation pump. The vacuum pump is connected to the vacuum tank through a ball valve to achieve the dehydration and degassing strengthening reaction effect during the reaction process. The circulation pump and the circulation pipe are detachably connected. The inlet of the circulation pipe is connected to the outlet of the reactor, and the outlet is on the upper wall of the reactor, and a spray head is matched at the outlet position; the gas storage tank is connected to the vacuum pump pipeline and the circulation pipe through a pipeline, and is used to temporarily store compressed air or inert gas to purge reactants or exhaust oxygen;

[0008] The energy management unit includes a heat medium storage box, a refrigerant storage box, a temperature sensor A, a temperature sensor B, a temperature sensor C, a temperature sensor D, a heat medium circulation pipe, and a refrigerant circulation pipe; the temperature sensor A is located in the heat medium storage box, the temperature sensor B is located in the heat medium circulation pipe, the temperature sensor C is located in the reactor, and the temperature sensor D is located in the heating jacket below the reactor; the heat medium circulation pipe connects the heat medium storage box and the reactor, and the refrigerant circulation pipe connects the refrigerant storage box and the reactor;

[0009] The integrated control unit comprises touch buttons and mechanical buttons for controlling the above units.

[0010] In the above oil displacement agent synthesis reaction device, a heater is provided in the heat medium storage box, and the heating method is electric heating or high-pressure steam heating. The heat medium is transported to the jacket of the reactor through the heat medium circulation pipe for circulation heating; a branch reflux pipe is provided on the heat medium circulation pipe. In the constant temperature stage, a staged circulation is performed to make the medium temperature distribution in the heat medium storage box uniform, ensure that the temperature of the heat medium storage box and the circulation inlet pipe is maintained constant, and increase the temperature control accuracy and efficiency.

[0011] In the above oil-displacing agent synthesis reaction device, the stirring shaft is detachably provided with a plurality of stirring paddles arranged up and down.

[0012] The beneficial effects of the utility model are:

[0013] First, the main reaction unit can use the stirring shaft under constant temperature and pressure conditions, and at the same time assist the vacuum system, the circulating sprayer in the auxiliary strengthening system, and the energy control unit to realize the synthesis of the oil displacement agent and the addition and modification reaction of the active functional group, thereby completing the exploration of the oil displacement agent synthesis process and obtaining high-performance oil displacement preparation products. The experimental process conditions are easy to control, highly operable, and repeatable, meeting the needs of actual scientific research and production;

[0014] Secondly, the auxiliary strengthening system device is used to realize the circulation of reaction materials and increase the reaction efficiency. First, the repeated circulation of materials between the discharge port below the reactor and the feed port above solves the sedimentation problem of solid powder in the reaction system during the reaction. Second, the physical circulation of the reaction material system increases the contact area between the solid phase and the gas phase of the reaction system, further improving the reaction efficiency. The auxiliary strengthening system device solves the problem of low efficiency of functional group addition and modification of oil displacement agents.

[0015] Thirdly, the energy management unit of this solution divides the heat transfer medium into groups and zones, namely the medium heating zone, the circulation zone, and the medium heat transfer zone. Through the partitioning and the buffering effect of the circulation path of the circulation zone, a good temperature control process can be achieved, with a narrower temperature control range and higher accuracy, solving the problems of temperature advance, lag and overheating in conventional single jacket heating.

[0016] Fourthly, through the integrated control unit, the various touch buttons and mechanical buttons are integrated to establish a control area unit, which can maintain a physical distance from the other units through wired or wireless transmission. This design has good advantages. First, the various control knobs and buttons distributed on the reactor body and around it are electronicized, so that they are transformed from relatively dispersed physical knobs and buttons to electronic touch buttons and parameter adjustment windows distributed in a smaller area in a modular manner, which not only improves the operation control rate, but also improves the control accuracy; second, for certain chemical reactions under high temperature and high pressure conditions with potential explosion risks, the remote control module isolates the operator from the reactor to prevent harm to personnel caused by dangerous conditions due to operational errors; at the same time, before and after the reaction, the operator is prevented from direct contact with harmful gases, ensuring the operator's personal safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the system structure of an embodiment of the utility model.

[0018] In the figure: 1 is a heat medium storage box, 2 is a refrigerant storage box, 3 is a reactor, 4 is a touch button, 5 is a mechanical button, 6 is a vacuum pump, 7 is a vacuum tank, 8 is an air compressor, 9 is a gas storage tank, 11 is a temperature sensor A, 12 is a temperature sensor B, 13 is a temperature sensor C, 14 is a temperature sensor D, 15 is a branch reflux pipe, 16 is a circulation pipe, 17 is a circulation pump, 31 is a stirring motor, 32 is a stirring shaft, 33 is a feed port A, 34 is a feed port B, 35 is a feed port C, 36 is a discharge port, 37 is a kettle cover, and 38 is a spray head. DETAILED DESCRIPTION

[0019] The technical content of the present utility model is explained in detail below in conjunction with the accompanying drawings.

[0020] This embodiment is an oil displacement agent synthesis reaction device, including a main reaction unit, an auxiliary strengthening unit, an energy management unit and an integrated control unit;

[0021] The main reaction unit includes a reactor 3 and a stirring shaft 32. A reactor cover 37 is installed on the top of the reactor 3. The stirring shaft 32 is vertically installed in the reactor 3. The reactor 3 is provided with three feed ports on the top and a discharge port 36 on the bottom.

[0022] The auxiliary strengthening unit includes a vacuum pump 6, a vacuum tank 7, an air compressor 8, a gas storage tank 9, a circulation pipe 16 and a circulation pump 17. The vacuum pump 6 is connected to the vacuum tank 7 through a ball valve. The circulation pump 17 and the circulation pipe 16 are detachably connected. The inlet of the circulation pipe 16 is connected to the outlet of the reactor 3, and the outlet is on the upper wall of the reactor 3. A spray head 38 is matched at the outlet position. The gas storage tank 9 is connected to the vacuum pump 6 pipeline and the circulation pipe 16 through a pipeline, and is used to temporarily store compressed air or inert gas to purge reactants or exhaust oxygen.

[0023] The energy management unit includes a heat medium storage box 1, a refrigerant storage box 2, a temperature sensor A11, a temperature sensor B12, a temperature sensor C13, a temperature sensor D14, a heat medium circulation pipe, and a refrigerant circulation pipe; the temperature sensor A11 is located in the heat medium storage box 1, the temperature sensor B12 is located in the heat medium circulation pipe, the temperature sensor C13 is located in the reactor 3, and the temperature sensor D14 is located in the heating jacket below the reactor 3; the heat medium circulation pipe connects the heat medium storage box 1 and the reactor 3, and the refrigerant circulation pipe connects the refrigerant storage box 2 and the reactor 3;

[0024] The integrated control unit comprises a touch button 4 and a mechanical button 5 for controlling the above units.

[0025] In the above-mentioned oil-displacing agent synthesis reaction device, a heater is provided in the heat medium storage box 1, and the heating method is electric heating or high-pressure steam heating. The heat medium is transported to the jacket of the reactor 3 through the heat medium circulation pipe for circulation heating; a branch reflux pipe 15 is provided on the heat medium circulation pipe.

[0026] In the above oil-displacing agent synthesis reaction device, the stirring shaft 32 is detachably mounted with a plurality of stirring paddles arranged up and down.

[0027] The working process of the synthesis reaction device:

[0028] The main material in the oil displacement agent raw material is added to the main reactor 3, and is pre-treated and reacted by stirring, heating, etc. The stirring device mainly includes a stirring shaft 32 and a stirring motor 31, etc. The stirring shaft 32 is connected to two sets of stirring paddles arranged up and down by screw buckles, and the stirring paddles can be freely replaced according to the viscosity characteristics of the material.

[0029] The kettle cover 37 is provided with observation holes A and B, which are used to observe the pretreatment state of the materials and conduct the formal synthesis reaction after the required conditions are met. The observation hole A is equipped with a spotlight to emit light, and direct observation is performed through the observation hole B. The feed port A33 is located on the kettle cover 37 and is used to add solid materials; the feed port B34 and the feed port C35 are located on the upper part of the kettle body near the upper edge and can be used to add liquid or gaseous materials.

[0030] During the entire reaction process, the reaction system is precisely temperature controlled by the energy management unit. The energy management unit includes a heat medium storage box 1, a cold medium storage box 2, a temperature sensor A11, a temperature sensor B12, a temperature sensor C13, a temperature sensor D14, a heat medium circulation pipe, and a cold medium circulation pipe. The temperature sensor A11 is located in the heat medium storage box 1, the temperature sensor B12 is located in the heat medium circulation pipe, the temperature sensor C13 is located in the reactor 3, and the temperature sensor D14 is located in the heating jacket below the reactor 3. The heat medium circulation pipe is provided with a branch reflux pipe 15, which is circulated in stages during the constant temperature stage to make the temperature distribution of the medium in the heat medium storage box 1 uniform, ensuring that the temperature of the heat medium storage box 1 and the material circulating into the pipe remains constant. The cooling jacket is arranged at the bottom of the reactor 3, occupying 1 / 10-1 / 15 of the bottom area of ​​the reactor; the start of cooling is linked to the heater in the heat medium storage box 1 through an integrated control unit.

[0031] For the modification reaction stage in the late stage of oil displacement agent synthesis, the material circulation pump can be turned on to strengthen the reaction and improve efficiency. The auxiliary strengthening unit includes a vacuum pump 6, a vacuum tank 7, an air compressor 8, a gas storage tank 9, a circulation pump 17, and a circulation pipe 16. The vacuum pump 6 is connected to the vacuum tank 7 through a ball valve to achieve the dehydration and degassing strengthening reaction effect during the reaction process. The connection between the circulation pump 17 and the circulation pipe 16 is a slipknot connected to the middle of the circulation pipe, the inlet of the circulation pipe 16 is connected to the outlet of the reactor 3, and the outlet of the circulation pipe 16 is on the upper wall of the reactor 3. The outlet is provided with a thread and matched with a spray head 38 of different pipe diameters; an auxiliary discharge port is provided at the bottom of the circulation pipe 16. The gas storage tank 9 is used to temporarily store compressed air or inert gas to purge the reactant product or exhaust oxygen.

Claims

1. An oil displacement agent synthesis reaction device, characterized in that: It includes a main reaction unit, an auxiliary reinforcement unit, an energy management unit and an integrated control unit; The main reaction unit comprises a reaction kettle (3) and a stirring shaft (32); a kettle cover (37) is installed on the top of the reaction kettle (3); and the stirring shaft (32) is vertically installed in the reaction kettle (3); three feed ports are provided on the top of the reaction kettle (3) and a discharge port (36) is provided on the bottom; The auxiliary strengthening unit comprises a vacuum pump (6), a vacuum tank (7), an air compressor (8), a gas storage tank (9), a circulation pipe (16) and a circulation pump (17); the vacuum pump (6) is connected to the vacuum tank (7) via a ball valve; the circulation pump (17) and the circulation pipe (16) are detachably connected; the inlet of the circulation pipe (16) is connected to the outlet of the reactor (3); the outlet is located on the upper wall of the reactor (3); and a spray head (38) is matched at the outlet position; the gas storage tank (9) is connected to the vacuum pump (6) pipeline and the circulation pipe (16) via a pipeline, and is used for temporarily storing compressed air or inert gas to purge reactants or exhaust oxygen; The energy management unit comprises a heat medium storage box (1), a refrigerant storage box (2), a temperature sensor A (11), a temperature sensor B (12), a temperature sensor C (13), a temperature sensor D (14), a heat medium circulation pipe, and a refrigerant circulation pipe; the temperature sensor A (11) is located in the heat medium storage box (1), the temperature sensor B (12) is located in the heat medium circulation pipe, the temperature sensor C (13) is located in the reactor (3), and the temperature sensor D (14) is located in the heating jacket below the reactor (3); the heat medium circulation pipe connects the heat medium storage box (1) and the reactor (3), and the refrigerant circulation pipe connects the refrigerant storage box (2) and the reactor (3); The integrated control unit comprises a touch button (4) and a mechanical button (5) for controlling the above-mentioned unit.

2. The oil displacing agent synthesis reaction device according to claim 1, characterized in that: The heat medium storage box (1) is provided with a heater, and the heating method is electric heating or high-pressure steam heating. The heat medium is transported to the jacket of the reaction kettle (3) through the heat medium circulation pipe for circulation heating. A branch reflux pipe (15) is provided on the heat medium circulation pipe.

3. The oil displacing agent synthesis reaction device according to claim 1, characterized in that: An array of stirring paddles arranged vertically are detachably mounted on the stirring shaft (32).

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