Preparation device of modifying and flooding agent for oil field

Abstract

The utility model discloses a device for preparing a modifying and flooding agent for an oil field, which belongs to the technical field of modifying and flooding agent preparation and comprises a preparation tank and a tank cover, a driving motor is bolted on the bottom surface of the preparation tank, a rotating shaft is fixedly connected with the output end of the driving motor, and the rotating shaft is connected with a bearing of the preparation tank. A plurality of groups of stirring blades are arranged on the side wall of the rotating shaft, a heating mechanism is arranged on the side wall of the preparation tank, a filtering type feeding mechanism is arranged at the top of the preparation tank, and a positioning mechanism is arranged at the top of the preparation tank. The raw materials in the preparation tank quickly reach the required reaction speed through heat transfer, so that the raw materials in the preparation tank can react quickly, the reaction speed of the raw materials in the preparation tank is shortened, and the preparation efficiency of the profile control and flooding agent is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of preparation of profile control and displacement agents, in particular to a device for preparing profile control and displacement agents for oil fields. Background Technique

[0002] A reagent composed of thickening agents, oil displacement agents, drag reducers, water shutoff agents, etc. is called a profile control and displacement agent. The profile control and displacement agent is injected into the formation through an injection well. It can produce comprehensive effects such as increasing the viscosity of the injected water, reducing the drag of crude oil, oil-water miscibility, and plugging of high-permeability layers with particles in the formation. As a result, it can plug the high-permeability layers of the injection well, balance its water absorption profile, reduce the mobility ratio of oil and water, further displace the residual oil in the formation, and form a movable "oil wall" in the formation to produce a "piston-type" oil displacement effect to reduce the water cut of oil wells and improve the oil recovery rate.

[0003] The existing preparation device cannot accurately quantitatively control the liquid raw materials added into the reaction kettle, thus affecting the quality of the oil displacement agent;

[0004] An existing patent (Publication No.: CN211384995U), a device for preparing oil displacement agents for oil fields, includes a reaction kettle body; the improvement lies in that a support column is fixed on the outer wall of one side of the reaction kettle body, a metering pump is designed at the top of the support column, the output end of the metering pump is connected to the inlet of the liquid feed pipe penetrating through the top of the reaction kettle body, and the outlet of the liquid feed pipe is located inside the reaction kettle body; a cover body is arranged at the top of the reaction kettle body, a support box is fixed on the top of the cover body, and a feeding port is arranged on the top of the cover body; a motor is arranged on the top of the support box, and the output end of the motor is connected to a stirring mechanism arranged inside the reaction kettle body through a coupling; a temperature control mechanism and a liquid level sensor are arranged on the inner wall of the reaction kettle body, and a discharging mechanism is arranged at the bottom of the reaction kettle body; it can accurately measure the raw materials added into the reaction kettle, improve the quality of the oil displacement agent preparation, and has high working efficiency.

[0005] In view of the above problems, the existing patent gives a solution, but there are problems that the preparation tank cannot be heated, and at the same time, the raw materials entering the inside of the preparation tank cannot be filtered. The existing preparation tank has problems that the raw materials cannot quickly reach the required temperature and the chemical reaction rate of the internal raw materials is slow.

[0006] Therefore, a device for preparing profile control and displacement agents for oil fields is proposed. Content of the Utility Model

[0007] The purpose of the utility model is to provide a device for preparing profile control and displacement agents for oil fields, which can solve the problems that the existing device for preparing oil displacement agents for oil fields cannot heat the preparation tank, and at the same time, the raw materials entering the inside of the preparation tank cannot be filtered. The existing preparation tank has problems that the raw materials cannot quickly reach the required temperature and the chemical reaction rate of the internal raw materials is slow.

[0008] To achieve the above object, the utility model provides the following technical solutions: A preparation device for a profile control agent used in oil fields, including a preparation tank and a tank cover. A driving motor is bolted to the bottom surface of the preparation tank. The output end of the driving motor is fixedly connected to a rotating shaft, and the rotating shaft is connected to the preparation tank through bearings. A plurality of stirring blades are arranged on the side wall of the rotating shaft. A heating mechanism is arranged on the side wall of the preparation tank. A filtering type feeding mechanism is arranged on the top of the preparation tank. A positioning mechanism is arranged on the top of the preparation tank;

[0009] The heating mechanism includes a spiral tube, a liquid inlet, a liquid outlet, a heat preservation cover and a plug. The spiral tube is arranged on the side wall of the preparation tank. The liquid inlet and the liquid outlet are respectively arranged at both ends of the spiral tube. The heat preservation cover is welded to the side wall of the preparation tank. The liquid inlet and the liquid outlet respectively extend to the outside of the heat preservation cover. Two plugs are respectively arranged at one ends of the liquid inlet and the liquid outlet.

[0010] Preferably, the filtering type feeding mechanism includes a feeding pipe, a feeding hopper, a support ring, a filter net cup, a connecting pipe, a head and a top cover. The feeding pipe is arranged on the top of the preparation tank. The feeding hopper is fixedly connected to the top of the feeding pipe. The support ring is fixedly connected to the inner wall of the feeding hopper. The filter net cup is arranged inside the feeding hopper and its side wall is in contact with the support ring. The connecting pipe is arranged on the side wall of the feeding hopper. The head is threadedly connected to one end of the connecting pipe. The top cover is threadedly connected to the top of the feeding hopper.

[0011] Preferably, the positioning mechanism includes a top frame, a pressing screw and a pressing plate. The top frame is fixedly connected to the top of the preparation tank. The pressing screw is threadedly connected to the middle of the top frame. The pressing plate is movably arranged at the bottom of the pressing screw. The bottom surface of the pressing plate is in contact with the tank cover.

[0012] Preferably, two connectors are arranged on the side wall of the preparation tank. A liquid level tube is arranged between the two connectors. The liquid level tube is made of a transparent material.

[0013] Preferably, a liquid inlet pipe is arranged on the top of the heat preservation cover. A drain pipe is arranged on the bottom of the heat preservation cover.

[0014] Preferably, a liquid outlet pipe is arranged at the bottom of the preparation tank. A valve body is arranged in the middle of the liquid outlet pipe. The valve body is located in the middle of the liquid outlet pipe.

[0015] Preferably, four support legs are fixedly connected to the bottom of the preparation tank. Adjusting feet are threadedly connected to the bottoms of the support legs.

[0016] Preferably, an anti-slip pad is bonded to the bottom of the adjusting foot. Anti-slip lines are arranged on the bottom surface of the anti-slip pad.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The present application is provided with a heating mechanism. During this process, the preparation tank can be heated, and through heat transfer, the raw materials inside the preparation tank can quickly reach the required reaction rate, enabling the raw materials inside the preparation tank to react rapidly, shortening the reaction rate of the raw materials inside the preparation tank, and improving the efficiency of preparing the profile control agent.

[0019] 2. The present application is provided with a filtering type feeding mechanism. During this process, the raw materials entering the preparation tank can be filtered to prevent impurities in the raw materials from entering the inside of the preparation tank. The presence of impurities will affect the reaction effects of various raw materials, and the precision of preparing the profile control agent is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is the overall structural view of the present invention;

[0022] Figure 2 It is the left view of the present invention;

[0023] Figure 3 It is for the present invention Figure 2 The three-dimensional sectional view at A - A in the present invention;

[0024] Figure 4 It is the structural view of the liquid outlet pipe and the valve body of the present invention;

[0025] Figure 5 It is the structural view of the filtering type feeding mechanism of the present invention.

[0026] Description of the reference numerals in the drawings:

[0027] 1. Preparation tank; 2. Tank cover; 3. Driving motor; 4. Rotating shaft; 5. Stirring blade; 6. Heating mechanism; 7. Filtering type feeding mechanism; 8. Positioning mechanism; 61. Spiral tube; 62. Liquid inlet; 63. Liquid outlet; 64. Heat preservation cover; 65. Plug; 71. Feed pipe; 72. Feed hopper; 73. Support ring; 74. Filter net cup; 75. Connecting pipe; 76. Head; 77. Top cover; 81. Top frame; 82. Compression screw; 83. Pressure plate; 9. Connector; 10. Liquid level pipe; 11. Liquid inlet pipe; 12. Drain pipe; 13. Liquid outlet pipe; 14. Valve body; 15. Support leg; 16. Adjusting foot; 17. Anti-slip pad. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1 to 5 , the present invention provides a technical solution:

[0030] An agent preparation device for oil fields includes a preparation tank 1 and a tank cover 2. A driving motor 3 is bolted to the bottom surface of the preparation tank 1. The output end of the driving motor 3 is fixedly connected to a rotating shaft 4. The rotating shaft 4 is connected to the preparation tank 1 by bearings. A plurality of stirring blades 5 are arranged on the side wall of the rotating shaft 4. A heating mechanism 6 is arranged on the side wall of the preparation tank 1. A filtering type feeding mechanism 7 is arranged on the top of the preparation tank 1. A positioning mechanism 8 is arranged on the top of the preparation tank 1;

[0031] The heating mechanism 6 includes a spiral tube 61, a liquid inlet 62, a liquid outlet 63, a heat preservation cover 64 and a plug 65. The spiral tube 61 is arranged on the side wall of the preparation tank 1. The liquid inlet 62 and the liquid outlet 63 are respectively arranged at both ends of the spiral tube 61. The heat preservation cover 64 is welded to the side wall of the preparation tank 1. The liquid inlet 62 and the liquid outlet 63 respectively extend to the outside of the heat preservation cover 64. Two plugs 65 are respectively arranged at one ends of the liquid inlet 62 and the liquid outlet 63.

[0032] Specifically, as Figure 3 shown, the positioning mechanism 8 includes a top frame 81, a pressing screw 82 and a pressing plate 83. The top frame 81 is fixedly connected to the top of the preparation tank 1. The pressing screw 82 is threadedly connected to the middle of the top frame 81. The pressing plate 83 is movably arranged at the bottom of the pressing screw 82. The bottom surface of the pressing plate 83 contacts the tank cover 2.

[0033] Specifically, as Figure 4 shown, two connectors 9 are arranged on the side wall of the preparation tank 1. A liquid level tube 10 is arranged between the two connectors 9. The liquid level tube 10 is made of a transparent material.

[0034] Specifically, as Figure 4 shown, a liquid inlet pipe 11 is arranged on the top of the heat preservation cover 64. A drain pipe 12 is arranged on the bottom of the heat preservation cover 64.

[0035] Specifically, as Figure 4 shown, a liquid outlet pipe 13 is arranged at the bottom of the preparation tank 1. A valve body 14 is arranged in the middle of the liquid outlet pipe 13. The valve body 14 is located in the middle of the liquid outlet pipe 13.

[0036] Specifically, as Figure 1 shown, four support legs 15 are fixedly connected to the bottom of the preparation tank 1, and adjusting feet 16 are threadedly connected to the bottoms of the support legs 15.

[0037] Specifically, as Figure 1 shown, an anti-slip pad 17 is adhesively bonded to the bottom of the adjusting foot 16, and anti-slip patterns are provided on the bottom surface of the anti-slip pad 17.

[0038] During use, heated liquid is conveyed into the interior of the spiral tube 61 through the liquid inlet 62. The preparation tank 1 can be heated through heat transfer. At this time, the raw materials inside the preparation tank 1 can quickly reach the required reaction temperature. The heat preservation cover 64 can perform heat preservation treatment on the preparation tank 1. Water source can be conveyed into the interior of the heat preservation cover 64 through the liquid inlet pipe 11. Since the specific heat capacity of the water source is relatively large, it can improve the heat preservation effect on the preparation tank 1. In this way, heating operation on the preparation tank 1 is realized. Through heat transfer, the raw materials inside the preparation tank 1 can quickly reach the required reaction rate, enabling the raw materials inside the preparation tank 1 to react rapidly, shortening the reaction rate of the raw materials inside the preparation tank 1, improving the efficiency of preparing the profile control and displacement agent. The driving motor 3 is connected to an external power source to drive the rotating shaft 4 to rotate. At this time, the stirring blades 5 stir the raw materials inside the preparation tank 1, improving the reaction rate of the raw materials inside the preparation tank 1. The tank cover 2 can be tightly positioned through the compression screw 82 and the pressing plate 83. By driving the pressing plate 83 away from the tank cover 2 through the compression screw 82, it is convenient to disassemble the tank cover 2. At the same time, the liquid level inside the preparation tank 1 can be conveniently observed through the connector 9 and the liquid level pipe 10. The discharge of the raw materials inside the preparation tank 1 can be controlled through the discharge pipe 13 and the valve body 14.

[0039] Specifically, as Figure 5 shown, the filter type feeding mechanism 7 includes a feeding pipe 71, a feeding hopper 72, a support ring 73, a filter net cup 74, a connecting pipe 75, a head 76 and a top cover 77. The feeding pipe 71 is arranged at the top of the preparation tank 1. The feeding hopper 72 is fixedly connected to the top of the feeding pipe 71. The support ring 73 is fixedly connected to the inner wall of the feeding hopper 72. The filter net cup 74 is arranged inside the feeding hopper 72 and its side wall is in contact with the support ring 73. The connecting pipe 75 is arranged on the side wall of the feeding hopper 72. The head 76 is threadedly connected to one end of the connecting pipe 75. The top cover 77 is threadedly connected to the top of the feeding hopper 72.

[0040] During use, the connecting pipe 75 is connected to an external feeding pipe, and raw materials enter the interior of the feeding hopper 72 through the connecting pipe 75. At this time, the filter net cup 74 filters and removes impurities from the raw materials. The filtered raw materials enter the interior of the preparation tank 1 through the feeding pipe 71. By disassembling the top cover 77, it is convenient to clean the filter net cup 74. In this way, the raw materials entering the interior of the preparation tank 1 can be filtered, preventing impurities in the raw materials from entering the interior of the preparation tank 1. The presence of impurities will affect the reaction effect of various raw materials, improving the precision of the preparation of the profile control agent.

[0041] By adopting the above technical solution, the problems that the existing profile control agent preparation device for oil fields cannot heat the preparation tank 1 and cannot filter the raw materials entering the interior of the preparation tank 1 are solved. The existing preparation tank 1 has the problems that the raw materials cannot quickly reach the required temperature and the chemical reaction speed of the internal raw materials is slow.

[0042] Working principle: When this application is in use, first, the connecting pipe 75 is connected to an external feeding pipe, and raw materials enter the interior of the feeding hopper 72 through the connecting pipe 75. At this time, the filter net cup 74 filters and removes impurities from the raw materials. The filtered raw materials enter the interior of the preparation tank 1 through the feeding pipe 71. The driving motor 3 is connected to an external power supply to drive the rotating shaft 4 to rotate. At this time, the stirring blades 5 stir the raw materials inside the preparation tank 1, improving the reaction speed of the raw materials inside the preparation tank 1. Heating liquid is conveyed into the interior of the spiral pipe 61 through the liquid inlet 62, and the preparation tank 1 can be heated through heat transfer. At this time, the raw materials inside the preparation tank 1 can quickly reach the required reaction temperature. The heat preservation cover 64 can perform heat preservation treatment on the preparation tank 1. Water source can be conveyed into the interior of the heat preservation cover 64 through the liquid inlet pipe 11. Since the specific heat capacity of the water source is relatively large, it can improve the heat preservation effect on the preparation tank 1. In this way, heating operation on the preparation tank 1 is realized. Through heat transfer, the raw materials inside the preparation tank 1 can quickly reach the required reaction speed, enabling the raw materials inside the preparation tank 1 to react quickly, shortening the reaction speed of the raw materials inside the preparation tank 1, and improving the efficiency of the preparation of the profile control agent.

[0043] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for preparing a displacement agent for oil fields, comprising a preparation tank (1) and a tank cover (2), characterized in that: A driving motor (3) is bolted to the bottom surface of the preparation tank (1), a rotating shaft (4) is fixedly connected to the output end of the driving motor (3), the rotating shaft (4) is connected to the bearing of the preparation tank (1), a plurality of stirring blades (5) are arranged on the side wall of the rotating shaft (4), a heating mechanism (6) is arranged on the side wall of the preparation tank (1), a filtering feeding mechanism (7) is arranged on the top of the preparation tank (1), and a positioning mechanism (8) is arranged on the top of the preparation tank (1); The heating mechanism (6) comprises a spiral tube (61), a liquid inlet (62), a liquid outlet (63), a heat-insulating cover (64) and a plug (65); the spiral tube (61) is arranged on the side wall of the preparation tank (1); the liquid inlet (62) and the liquid outlet (63) are respectively arranged at two ends of the spiral tube (61); the heat-insulating cover (64) is welded to the side wall of the preparation tank (1); the liquid inlet (62) and the liquid outlet (63) respectively extend to the outside of the heat-insulating cover (64); and the two plugs (65) are respectively arranged at one end of the liquid inlet (62) and the liquid outlet (63).

2. The oilfield control agent preparation device according to claim 1, characterized in that: The filtering feeding mechanism (7) comprises a feeding pipe (71), a feeding hopper (72), a supporting ring (73), a filter cup (74), a connecting pipe (75), a sealing head (76) and a top cover (77); the feeding pipe (71) is arranged at the top of the preparation tank (1); the feeding hopper (72) is fixedly connected to the top of the feeding pipe (71); the supporting ring (73) is fixedly connected to the inner wall of the feeding hopper (72); the filter cup (74) is arranged inside the feeding hopper (72) and the side wall is in contact with the supporting ring (73); the connecting pipe (75) is arranged on the side wall of the feeding hopper (72); the sealing head (76) is threadedly connected to one end of the connecting pipe (75); and the top cover (77) is threadedly connected to the top of the feeding hopper (72).

3. The oilfield control agent preparation device according to claim 1, characterized in that: The positioning mechanism (8) comprises a top frame (81), a pressing screw (82) and a pressure plate (83); the top frame (81) is fixedly connected to the top of the preparation tank (1); the pressing screw (82) is threadedly connected to the middle of the top frame (81); the pressure plate (83) is movably arranged at the bottom of the pressing screw (82); and the bottom surface of the pressure plate (83) is in contact with the tank cover (2).

4. The oilfield control agent preparation device according to claim 1, characterized in that: Two connectors (9) are arranged on the side wall of the preparation tank (1), and a liquid level tube (10) is arranged between the two connectors (9), and the liquid level tube (10) is made of a transparent material.

5. The device for preparing oilfield control agent according to claim 1, characterized in that: The top of the heat-insulating cover (64) is provided with a liquid inlet pipe (11), and the bottom of the heat-insulating cover (64) is provided with a liquid discharge pipe (12).

6. The device for preparing oilfield control agent according to claim 1, characterized in that: A liquid outlet pipe (13) is arranged at the bottom of the preparation tank (1), a valve body (14) is arranged in the middle of the liquid outlet pipe (13), and the valve body (14) is located in the middle of the liquid outlet pipe (13).

7. The device for preparing oilfield control agent according to claim 1, characterized in that: Four supporting legs (15) are fixedly connected to the bottom of the preparation tank (1), and adjusting feet (16) are threadedly connected to the bottom of the supporting legs (15).

8. The device for preparing oilfield control agent according to claim 7, characterized in that: The bottom of the adjusting foot (16) is bonded with an anti-skid pad (17), and the bottom surface of the anti-skid pad (17) is provided with anti-skid patterns.

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