Anti-corrosion treatment device for oilfield reinjection water

Abstract

The utility model discloses an anti-corrosion treatment device for oilfield reinjection water, and relates to the technical field of water treatment equipment. The oil field reinjection water treatment device comprises an oil field reinjection water treatment box, a water flow channel is formed in the oil field reinjection water treatment box in an S shape, and spoilers are fixedly arranged on the inner side wall of the water flow channel at equal intervals in a staggered mode along the path of the water flow channel. By means of the S-shaped water flow channel, the backflow path of reinjection water can be prolonged, the reinjection water can be treated for a longer time, the flowing reinjection water can be disturbed through the spoiler, the disturbed reinjection water can be fully treated by arranging the electromagnetic pole at the disturbed flow position, and the service life of the reinjection water is prolonged. According to the oil field reinjection water treatment box, backflow water can be disturbed without assistance of external equipment, more energy is saved, the box cover can be detached from the front side of the oil field reinjection water treatment box by unscrewing the bolts, workers can conveniently clean the interior of the oil field reinjection water treatment box, and the use effect is better.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water treatment equipment technical field, especially relate to a kind of oilfield reinjection water corrosion prevention treatment device. BACKGROUND

[0002] At present, for the oilfield that development has entered middle and later period, the average water content in produced fluid is 50%-70%, and some even reach above 90%. Produced fluid is the multiphase system formed by oil-water separation, which integrates suspended solids, oil and dissolved substances. Its main pollutants include salts, sulfides, suspended solids, crude oil and microorganisms. The sulfate-reducing bacteria in produced fluid can cause serious corrosion problems. If not treated, direct reinjection can block the formation and cause crude oil production to decline, thereby seriously affecting the development effect and economic benefit of the oilfield. Solving the corrosion, scaling and sterilization problems of produced fluid in oilfield is of great significance to oilfield exploitation. Through retrieval, the patent with application number 202320116798.0 discloses an oilfield reinjection water corrosion prevention treatment device, which comprises a tank body and a plurality of electromagnetic poles installed on the tank body pipe wall; the tank body end is provided with a water inlet and a water outlet; the tank body is internally provided with a turbulence device for generating turbulence effect on circulating water; the turbulence device comprises a turbulence plate arranged inside the tank body and a driving assembly for driving the turbulence plate to move; the turbulence plate is of spiral structure; the outer edge of the turbulence plate and the inner wall of the tank body have a preset distance H.

[0003] However, in actual use, the applicant found that when disturbing the oilfield reinjection water in the tank, it is necessary to drive the rotating motor to rotate the shaft, and the shaft drives the turbulence plate to realize the disturbance of the oilfield injection water, so that the oilfield reinjection water corrosion prevention treatment process is not energy-saving. In view of this, we propose an oilfield reinjection water corrosion prevention treatment device. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0005] The utility model is an oilfield reinjection water corrosion prevention treatment device, which comprises an oilfield reinjection water treatment box, an internal water flow channel of the oilfield reinjection water treatment box is S-shaped, turbulence plates are fixedly arranged on the inner side wall of the water flow channel at equal intervals along the path of the water flow channel, an electromagnetic pole is fixedly connected to the position close to the turbulence plate on the rear side of the oilfield reinjection water treatment box, the front end of the electromagnetic pole extends into the water flow channel, a water inlet branch pipe is fixedly arranged on one side of the oilfield reinjection water treatment box, a water outlet branch pipe is fixedly arranged on the other side of the oilfield reinjection water treatment box, and a box cover is fixedly connected to the front side of the oilfield reinjection water treatment box by bolts.

[0006] Preferably, the oilfield reinjection water treatment box is provided with rear connecting supports at four corner positions, and threaded holes are formed in the front side of the rear connecting supports.

[0007] Preferably, the box cover is provided with front connecting supports at four corner positions, and through holes are formed in the front side of the front connecting supports.

[0008] Preferably, the rear end of the bolt is screwed into the threaded hole through the through hole.

[0009] Preferably, the oilfield reinjection water treatment box is provided with a sealing gasket at the edge position of the front side, and the connection between the oilfield reinjection water treatment box and the box cover is sealed and waterproofed by the sealing gasket.

[0010] Preferably, the water inlet branch pipe is communicated with the water inlet end of the water flow channel, and the water outlet branch pipe is communicated with the water outlet end of the water flow channel.

[0011] The utility model has the following beneficial effects:

[0012] The utility model relates to an oilfield reinjection water corrosion prevention treatment device, which is provided with an S-shaped water flow channel, can prolong the reflux path of reinjection water, make the reinjection water have a longer time for treatment, is provided with a spoiler, can disturb the flowing reinjection water, and is provided with an electromagnetic pole at the disturbance position, so that the disturbed reinjection water can be fully treated, does not need to disturb the oilfield reflux water by external equipment, is more energy-saving, and can be detached from the front side of the oilfield reinjection water treatment box by loosening the bolt, is convenient for personnel to clean the inside of the oilfield reinjection water treatment box, and has better use effect. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0014] Fig. 1 It is a structure schematic view when the utility model discloses an oilfield reinjection water corrosion prevention treatment device opens the box cover.

[0015] Fig. 2 It is a structure schematic view when the utility model discloses an oilfield reinjection water corrosion prevention treatment device closes the box cover.

[0016] Fig. 3 It is a structure schematic view of the box cover in the utility model discloses an oilfield reinjection water corrosion prevention treatment device.

[0017] In the drawings, the component list represented by each sign is as follows:

[0018] 1, oilfield reinjection water treatment tank; 11, water flow channel; 12, spoiler; 13, water inlet branch pipe; 14, water outlet branch pipe; 15, rear connecting support; 151, threaded hole; 2, electromagnetic pole; 3, gasket; 4, bolt; 5, tank cover; 51, front connecting support; 511, through hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Please refer to Figs. 1-3 The technical scheme provided by the present application is as follows:

[0021] The utility model provides an oilfield reinjection water anticorrosion treatment device, including oilfield reinjection water treatment box 1, the inside S type of oilfield reinjection water treatment box 1 is set up with water flow channel 11, the inner side wall of water flow channel 11 is fixedly arranged with the spoiler 12 along the path of water flow channel 11 staggered at equal intervals, the rear side of oilfield reinjection water treatment box 1 is fixedly connected with electromagnetic pole 2 close to the spoiler 12, and the front end of electromagnetic pole 2 extends into water flow channel 11, by setting S type water flow channel 11, the reflux path of reinjection water can be extended, so that it has longer time to be treated, by setting spoiler 12, the flowing reinjection water can be disturbed, and by setting electromagnetic pole 2 at the disturbance position, the disturbed reinjection water can be treated sufficiently, without the aid of external equipment to disturb the reflux water, more energy-saving, the principle of electromagnetic treatment is: after the excitation effect of low-frequency electromagnetic wave and the change of free energy, no red rust is formed in iron corrosion under the condition of high temperature or low temperature, and black magnet layer, i.e. Fe3O4 is directly formed. Fe3O4 is an oxidation layer with very stable structure, conductivity, density and best corrosion resistance. When Fe3O4 is formed on the surface of iron, it is like forming a conductive protective layer. When the current passes through iron and magnet layer and then enters electrolyte, since the lower iron layer only contacts the magnet layer, the current can only pass through the magnet layer to enter the electrolyte, but since the magnet layer cannot be dissociated, the effective corrosion resistance is achieved. The specific structure and electromagnetic process of the electromagnetic pole 2 all adopt the prior art, and the specific anticorrosion mechanism analysis process is disclosed in the oilfield reinjection water anticorrosion treatment device with the application number CN202122388563.0 and the name. One side of oilfield reinjection water treatment box 1 is fixedly provided with water inlet branch pipe 13, water inlet branch pipe 13 communicates with the water inlet end of water flow channel 11, the other side of oilfield reinjection water treatment box 1 is fixedly provided with water outlet branch pipe 14, water outlet branch pipe 14 communicates with the water outlet end of water flow channel 11, when the oilfield reinjection water is treated, the oilfield reinjection water to be treated is introduced into the water flow channel 11 in the inside of oilfield reinjection water treatment box 1 from water inlet branch pipe 13, when the reinjection water flows along water flow channel 11 to the spoiler 12, due to the disturbance of the spoiler 12, the disturbed reinjection water is treated at electromagnetic pole 2, so that the reinjection water after disturbance for several times is treated sufficiently by the multiple electromagnetic poles 2 in the process of flowing along water flow channel 11, and the reinjection water after anticorrosion treatment can be discharged from water outlet branch pipe 14.

[0022] The front side of the oilfield reinjection water treatment box 1 is fixedly connected with a box cover 5 through bolts 4, rear connecting supports 15 are fixedly arranged at four corner positions of the oilfield reinjection water treatment box 1, and threaded holes 151 are formed in the front side of the rear connecting supports 15, front connecting supports 51 are fixedly arranged at four corner positions of the box cover 5, and through holes 511 are formed in the front side of the front connecting supports 51, the rear ends of the bolts 4 are threaded into the through holes 511 and then screwed into the threaded holes 151, and a sealing gasket 3 is fixedly connected to the front side of the oilfield reinjection water treatment box 1 along an edge position, so that the connection between the oilfield reinjection water treatment box 1 and the box cover 5 is sealed and waterproof, the box cover 5 can be disassembled from the front side of the oilfield reinjection water treatment box 1 by unscrewing the bolts 4, the inside of the oilfield reinjection water treatment box 1 can be cleaned, and the use effect is better, and after being used for a period of time, the box cover 5 can be disassembled from the front side of the oilfield reinjection water treatment box 1 by unscrewing the bolts 4 from the threaded holes 151 one by one, so that the inside of the oilfield reinjection water treatment box 1 can be cleaned.

[0023] Working principle: when in use, during the corrosion prevention treatment of the oilfield reinjection water, the oilfield reinjection water to be treated is introduced into the water flow channel 11 in the oilfield reinjection water treatment box 1 from the water inlet branch pipe 13, when the reinjection water flows along the water flow channel 11 to the spoiler 12, due to the spoiler effect of the spoiler 12, the disturbed reinjection water is treated at the electromagnetic pole 2, so that the reinjection water disturbed for several times is treated by the multiple electromagnetic poles 2 during the flowing along the water flow channel 11, and the reinjection water treated by the corrosion prevention treatment can be discharged from the water outlet branch pipe 14, and after being used for a period of time, the box cover 5 can be disassembled from the front side of the oilfield reinjection water treatment box 1 by unscrewing the bolts 4 from the threaded holes 151 one by one, so that the inside of the oilfield reinjection water treatment box 1 can be cleaned.

[0024] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0025] The above is only the preferred embodiment of the present application, and does not limit the present application, any modification of the technical solutions described in the foregoing embodiments, and equivalent replacement of part of the technical features, all belong to the protection scope of the present application.

Claims

1. An oilfield reinjection water corrosion prevention treatment device, comprising an oilfield reinjection water treatment tank (1), characterized in that: The inside of the oilfield reinjection water treatment tank (1) is provided with a water flow channel (11) in S shape, the inner side wall of the water flow channel (11) is fixedly provided with a spoiler (12) at equal intervals along the path of the water flow channel (11), the rear side of the oilfield reinjection water treatment tank (1) is fixedly connected with an electromagnetic pole (2) near the spoiler (12), the front end of the electromagnetic pole (2) extends into the water flow channel (11), one side of the oilfield reinjection water treatment tank (1) is fixedly provided with a water inlet branch pipe (13), the other side of the oilfield reinjection water treatment tank (1) is fixedly provided with a water outlet branch pipe (14), and the front side of the oilfield reinjection water treatment tank (1) is fixedly connected with a tank cover (5) through bolts (4).

2. The oilfield reinjection water corrosion control treatment apparatus of claim 1, wherein, The four corner positions of the oilfield reinjection water treatment tank (1) are fixedly provided with rear connecting supports (15), and the front side of the rear connecting support (15) is provided with a threaded hole (151).

3. The oilfield reinjection water corrosion control treatment apparatus of claim 2, wherein, The four corner positions of the tank cover (5) are fixedly provided with front connecting supports (51), and the front side of the front connecting support (51) is provided with a through hole (511).

4. The oilfield reinjection water corrosion control treatment apparatus of claim 3, wherein, The rear end of the bolt (4) is screwed into the threaded hole (151) after penetrating the through hole (511).

5. The oilfield reinjection water corrosion control treatment apparatus of claim 1, wherein, The front side of the oilfield reinjection water treatment tank (1) is fixedly connected with a sealing gasket (3) along the edge position, and the connection between the oilfield reinjection water treatment tank (1) and the tank cover (5) is sealed and waterproofed by the sealing gasket (3).

6. The oilfield reinjection water corrosion control treatment apparatus of claim 1, wherein, The water inlet branch pipe (13) is communicated with the water inlet end of the water flow channel (11), and the water outlet branch pipe (14) is communicated with the water outlet end of the water flow channel (11).

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