Combined demulsification mixer

Abstract

The utility model relates to the technical field of oilfield chemical injection, and particularly discloses a combined demulsification mixer, which comprises a demulsifier and a mixer, the demulsifier is connected with the mixer through a connecting pipe, a demulsification agent inlet is arranged on the demulsifier, a demulsification agent jet orifice and a water jet orifice are arranged in the demulsifier, and the water jet orifice is communicated with the demulsification agent inlet. The demulsifying agent jet orifices are arranged on the axis of the demulsifier, the water jet orifices are annularly and uniformly arranged on the outer rings of the demulsifying agent jet orifices, the connecting pipe is provided with a mixed agent inlet, the mixer comprises a mixer shell, and a mixer spiral sheet is arranged in the mixer shell. According to the utility model, the demulsification effect is greatly improved through the demulsification agent jet orifice arranged in the center and the water jet orifices arranged annularly, the mixing effect is improved through the arrangement of the mixer spiral sheet, and the crude oil yield increasing effect after the chemical agent is injected is better realized.

Description

Technical Field

[0001] The utility model relates to the technical field of oil field chemical injection, in particular to a combined demulsifier mixer. Background Art

[0002] During the water flooding development of oil fields, due to the heterogeneity of the reservoir, the injected water advances unevenly along the high permeability layer, resulting in premature breakthrough of the injected water, low degree of influence on the medium and low permeability layers, which seriously affects the effect of water flooding development. Therefore, it is necessary to inject chemical agents into the water injection wells to achieve oil stabilization and water control. The demulsification and mixing effect of chemical agents in the pipeline greatly affects the effect of increasing crude oil production. Conventional demulsification and mixing are mainly carried out by stirring with a stirrer and a static mixer, and the effect is not ideal.

[0003] Therefore, it is necessary to propose an improvement to overcome the defects of the prior art. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art and provide a combined demulsifier mixer.

[0005] The technical solution of the utility model is:

[0006] A combined demulsifier mixer includes a demulsifier and a mixer, the demulsifier and the mixer are connected through a connecting pipe, a demulsifier inlet is provided on the demulsifier, a demulsifier injection port and a water injection port are provided in the demulsifier, the demulsifier injection port is arranged on the axis of the demulsifier, the water injection port is evenly arranged in a ring shape on the outer ring of the demulsifier injection port, a mixed agent inlet is provided on the connecting pipe, and the mixer includes a mixer shell, and a mixer spiral blade is provided in the mixer shell. Water from upstream enters the water injection port arranged in a ring shape, the demulsifier enters the demulsifier injection port in the center through the demulsifier inlet, the demulsifier forms a demulsification effect together with water, the mixed agent enters through the mixed agent inlet, water, the demulsifier and the mixed agent enter the mixer together, are spirally transported under the diversion effect of the mixer spiral blade, are fully mixed, and then enter the downstream link, which can quickly and efficiently realize the demulsification and mixing of multiple chemical agents.

[0007] As a preferred technical solution, the demulsifier is provided with multiple demulsifiers, the multiple demulsifiers are connected by a coupling, and the demulsifier and the connecting pipe are connected by a coupling. The connection is more flexible, and the number of demulsifiers can be arbitrarily matched according to actual work needs, so as to realize multiple uses of one structure.

[0008] As a preferred technical solution, the demulsifier is threadedly connected to the coupling, one end of the connecting pipe is threadedly connected to the coupling, and the other end of the connecting pipe is threadedly connected to the mixer. The threaded connection is convenient for connection and disassembly.

[0009] As a preferred technical solution, the mixed medicine inlet is provided with a plurality of mixed medicine inlets, and the number of mixed medicine inlets can be set as required.

[0010] As a further preferred technical solution, the combined demulsifier mixer is made of stainless steel to reduce the corrosion of the chemical to the structure.

[0011] As a further preferred technical solution, the inner wall of the combined demulsifier mixer is provided with an anti-corrosion layer to reduce the corrosion of the chemical to the structural body.

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

[0013] The utility model is a combined demulsifier mixer, which greatly improves the demulsification effect through the demulsifier injection port arranged in the center and the water injection port arranged in an annular manner; the arrangement of the spiral blades of the mixer allows water, demulsifier and mixed agent to enter the mixer together, and then be spirally transported and fully mixed under the guidance of the spiral blades of the mixer, thereby quickly and efficiently achieving the demulsification and mixing of multiple chemical agents, and better achieving the effect of increasing crude oil production after the injection of chemical agents. By connecting in a coupling manner, the number of demulsifiers can be arbitrarily matched according to actual work needs, which is more flexible and realizes multiple uses of one structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the combined demulsifier of the utility model;

[0015] Figure 2 This is a schematic diagram of the arrangement of the injection ports of the demulsifier of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the mixer of the utility model;

[0017] Among them, 1. coupling; 2. demulsifier; 3. demulsifier inlet; 4. connecting pipe; 5. mixed agent inlet; 6. mixer; 7. water injection port; 8. demulsifier injection port; 9. mixer shell; 10. mixer spiral blade. DETAILED DESCRIPTION

[0018] In order to make the technical means, technical features, utility model objectives and technical effects achieved by the utility model easy to understand, the utility model is further explained below with reference to specific illustrations.

[0019] like Figure 1-Figure 3 As shown, a combined demulsifier mixer according to an embodiment of the utility model comprises a demulsifier 2 and a mixer 6, and the demulsifier 2 and the mixer 6 are connected by a connecting pipe 4. In order to reduce the corrosion of the reagent to the structural body, the combined demulsifier mixer according to this embodiment is made of stainless steel or the inner wall is made of carbon steel for internal anti-corrosion treatment.

[0020] The demulsifier 2 is provided with a demulsifier inlet 3, and the demulsifier 2 is provided with a water injection port 7 and a demulsifier injection port 8. The demulsifier injection port 8 is arranged on the axis of the demulsifier 2, and the water injection port 7 is evenly arranged in a ring shape on the outer circle of the demulsifier injection port 8. The upstream water enters the water injection port 7 arranged in a ring shape, and the demulsifier enters the demulsifier injection port 8 in the center through the demulsifier inlet 3, and the demulsifier forms a demulsification effect together with the water. There are multiple demulsifiers 2, and the multiple demulsifiers 2 are threadedly connected by a coupling 1, which makes the connection more flexible, and the number of demulsifiers 2 can be arbitrarily matched according to actual work needs, so as to realize multiple uses of one structure.

[0021] The connecting pipe 4 is provided with a mixed agent inlet 5, and the number of the mixed agent inlets 5 can be set as needed. One end of the connecting pipe 4 is threadedly connected to the demulsifier 2 through the coupling 1, and the other end of the connecting pipe 4 is threadedly connected to the mixer 6.

[0022] The mixer 6 includes a mixer housing 9, and a mixer spiral blade 10 is arranged in the mixer housing 9. The mixed agent enters through the mixed agent inlet 5, and water, demulsifying agent and mixed agent enter the mixer 6 together, and are spirally transported under the guidance of the mixer spiral blade 10, fully mixed, and then enter the downstream link, which can quickly and efficiently achieve demulsification and mixing of multiple chemical agents.

[0023] The above description is only a preferred embodiment of the utility model, and is not intended to limit the scope of implementation of the utility model. That is, all equivalent changes and modifications made according to the content of the patent application scope of the utility model should belong to the technical scope of the utility model.

Claims

1. A combined demulsifier mixer, characterized in that: The invention comprises a demulsifier (2) and a mixer (6), wherein the demulsifier (2) and the mixer (6) are connected via a connecting pipe (4), the demulsifier (2) is provided with a demulsifier inlet (3), the demulsifier (2) is provided with a demulsifier injection port (8) and a water injection port (7), the demulsifier injection port (8) is arranged on the axis of the demulsifier (2), the water injection port (7) is evenly arranged in a ring shape on the outer ring of the demulsifier injection port (8), the connecting pipe (4) is provided with a mixed agent inlet (5), and the mixer (6) comprises a mixer housing (9), and a mixer spiral blade (10) is arranged in the mixer housing (9).

2. A combined demulsifier mixer according to claim 1, characterized in that: A plurality of demulsifiers (2) are provided, the plurality of demulsifiers (2) are connected via couplings (1), and the demulsifiers (2) and the connecting pipe (4) are connected via couplings (1).

3. A combined demulsifier mixer according to claim 2, characterized in that: The demulsifier (2) is threadedly connected to the coupling (1), one end of the connecting pipe (4) is threadedly connected to the coupling (1), and the other end of the connecting pipe (4) is threadedly connected to the mixer (6).

4. A combined demulsifier mixer according to claim 1, characterized in that: The mixed medicine inlet (5) is provided in plurality.

5. A combined demulsifier mixer according to claim 1, characterized in that: The combined demulsifier mixer is made of stainless steel.

6. A combined demulsifier mixer according to claim 1, characterized in that: The inner wall of the combined demulsifier mixer is provided with an anti-corrosion layer.

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