CN216191417U - Oil field reinjection water anticorrosion treatment device - Google Patents
Oil field reinjection water anticorrosion treatment device Download PDFInfo
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- CN216191417U CN216191417U CN202122388563.0U CN202122388563U CN216191417U CN 216191417 U CN216191417 U CN 216191417U CN 202122388563 U CN202122388563 U CN 202122388563U CN 216191417 U CN216191417 U CN 216191417U
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Abstract
The utility model provides an anti-corrosion treatment device for oilfield reinjection water, and belongs to the technical field of oilfield reinjection water treatment devices. The technical scheme is as follows: the utility model provides an oil field reinjection water anticorrosion processing apparatus, wherein, includes the deoiling jar, arranges a plurality of projecting pole in the deoiling jar respectively in, the receive electrode of electricity connection on the deoiling jar outer wall, runs through the electrically connected projecting pole connecting rod of deoiling jar lateral wall, inner respectively with a plurality of projecting pole electricity respectively to and respectively with projecting pole connecting rod outer end, receive the switch board of electrical connection. The utility model has the beneficial effects that: the oil field reinjection water anti-corrosion treatment device provided by the utility model utilizes a pure physical method, and has the advantages of high treatment efficiency, good effect, simple structure, reasonable layout, simple operation and maintenance and flexible use.
Description
Technical Field
The utility model relates to the technical field of oilfield reinjection water treatment devices, in particular to an oilfield reinjection water anti-corrosion treatment device.
Background
With the deep exploration and development of international petroleum and natural gas, reservoir conditions are increasingly complex, and resource reserves of 'deep, low, sea and non' (deep, low permeability, offshore and unconventional oil and gas) become hot spots for increasing oil and gas yield. The whole life cycle of oil and gas well development faces corrosion problems in different degrees, and corrosion prevention is an important link for flow guarantee work in the normal production process.
At present, for oil fields which are developed in the middle and later stages, the average water content in produced liquid is 50-70%, and some of the produced liquid even reaches more than 90%. The produced liquid is a multiphase system which is formed after oil-water separation and integrates suspended solid, oil and dissolved substances, and the main pollutants of the produced liquid are salts, sulfides, suspended substances, crude oil, microorganisms and the like. Sulfate reducing bacteria in produced liquid can bring serious corrosion problem, and if the sulfate reducing bacteria are not treated and directly reinjected, the sulfate reducing bacteria can block stratum to cause the reduction of crude oil yield, thereby seriously influencing the development effect and economic benefit of an oil field. The problems of corrosion, scaling and sterilization of the produced liquid of the oil field are significant to the exploitation of the oil field, and many research reports are reported at home and abroad, but many technical problems are still to be further researched due to different properties of the produced liquid of different oil fields.
Currently applied corrosion prevention technology
(1) Addition of corrosion inhibitors
In the environment medium, a small amount of substance capable of preventing or slowing down the corrosion of the metal is added to achieve the method for protecting the metal. The corrosion inhibiting effect of the corrosion inhibitor is to effect a slowing or retarding of the corrosion of the metal. The method has the advantages of low investment, high efficiency and complex operation process. At present, corresponding corrosion inhibitors are mainly added aiming at the oil field environment, such as CO2 resistant, acid resistant and high temperature resistant functional corrosion inhibitors, novel polymer corrosion inhibitors, responsive intelligent corrosion inhibitors, green corrosion inhibitors and the like.
(2) Protective coating
After various protective coatings are coated on the surface or the inside of the metal, the metal can be isolated from a corrosive medium, so that the corrosion of the metal is slowed down or prevented. The addition of graphene to epoxy coatings is currently a focus of research. Reduced graphene oxide nanosheets are uniformly dispersed in an epoxy coating by a foreign group to prepare a graphene epoxy composite coating, and the graphene epoxy composite coating is applied to an N80 oil pipe so as to adapt to the high-temperature and high-salinity oil-gas production environment.
How to solve the problems in the prior art described above is a problem to be faced by the present invention.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide the oil field reinjection water anti-corrosion treatment device which utilizes a pure physical method, has high treatment efficiency, good effect, simple structure, reasonable layout, simple operation and maintenance and flexible use.
The utility model is realized by the following measures: the utility model provides an oil field reinjection water anticorrosion processing apparatus, wherein, includes the deoiling jar, arranges in respectively a plurality of projecting pole in the deoiling jar, the electricity is connected the receiving electrode on the deoiling jar outer wall runs through respectively deoiling jar lateral wall, inner respectively with a plurality of the projecting pole connecting rod that the projecting pole is connected electrically, and respectively with projecting pole connecting rod outer end the switch board that the receiving electrode is connected electrically.
When the device is used, oilfield reinjection water enters the oil removal tank, is treated and then is reinjected to the stratum along the pipeline through pressurization, wherein the emitting electrodes correspond to corrosion prevention, sterilization and descaling respectively, the receiving electrode is arranged on the outer wall of the oil removal tank, so that the whole tank body becomes the receiving electrode, a low-frequency electromagnetic wave emitting and receiving loop is formed between the emitting electrode corresponding to corrosion prevention and sterilization and the tank body, the emitting and receiving loop formed between the emitting electrode corresponding to descaling and the tank body is excited to recharge the reinjection water, the reinjection water releases energy in the flowing process, and the inner wall of the tank body and the inner wall of the pipeline flowing through the tank body directly form a black magnet layer Fe3O4The method has the advantages of corrosion resistance, corrosion prevention, sterilization and descaling treatment of oilfield reinjection water by a pure physical method, no need of adding a corrosion inhibitor, high treatment efficiency, good effect and simple operation and maintenance.
The utility model is characterized in that the oil removing tank comprises a first oil removing tank and a second oil removing tank which are sequentially communicated along the flow direction of the reinjection water;
the emitter comprises a first emitter and a second emitter which are arranged in the first oil removal tank, and a third emitter which is arranged in the second oil removal tank; correspondingly, the emitter connecting rod comprises a first emitter connecting rod electrically connected with the first emitter and the second emitter, and a second emitter connecting rod electrically connected with the third emitter; the receiving electrode comprises a first receiving electrode arranged on the outer wall of the first oil removing tank and corresponding to the first emitting electrode connecting rod and a second receiving electrode arranged on the outer wall of the second oil removing tank and corresponding to the second emitting electrode connecting rod.
Wherein, arrange first emitter and the second emitter in first deoiling jar in and correspond anticorrosive and disinfect respectively, arrange the third emitter in the second deoiling jar in and correspond the scale removal, can prevent that the scale removal process from causing the influence to anticorrosive, the sterilization process, further guarantee treatment effect.
The utility model is characterized in that the control cabinet comprises a first control cabinet electrically connected with the first receiving electrode and a second control cabinet electrically connected with the second receiving electrode, the anti-corrosion and sterilization treatment and the descaling treatment of the oilfield reinjection water are controlled separately, the reasonable control can be carried out according to the quality of the oilfield reinjection water, and the use flexibility is improved.
The utility model has the specific characteristics that the emitter connecting rod penetrates through the oil removal tank at a manhole, namely, a first manhole is arranged on the first oil removal tank, the first emitter connecting rod penetrates through the first oil removal tank at the first manhole, a second manhole is arranged on the second oil removal tank, and the second emitter connecting rod penetrates through the second oil removal tank at the second manhole, so that the arrangement is reasonable, and the installation is convenient.
The utility model is particularly characterized in that a water inlet pipe of the first oil removal tank penetrates through the side wall of the first oil removal tank, and a middle opening of the first oil removal tank upwards conveys reinjection water into the first oil removal tank, namely, most oil removal tanks for oil fields have strong applicability.
The utility model is characterized in that the opening of the water inlet pipe of the first degreasing tank is positioned at the center of the first degreasing tank.
The utility model is characterized in that the first emitter and the second emitter are correspondingly positioned at two sides of the opening of the water inlet pipe, the layout is reasonable, and the treatment efficiency is high.
The emitter connecting rod I is Y-shaped, and is simple in structure and convenient to manufacture.
The utility model has the beneficial effects that: the method has the advantages that the oil field reinjection water is subjected to corrosion prevention, sterilization and descaling treatment by a purely physical method, no corrosion inhibitor is required to be added, the process is simple, the corrosion prevention layer can be formed on the inner wall of the tank body in the treatment process, the treatment efficiency is high, and the effect is good; when the reinjection water is treated, the anticorrosion and sterilization treatment is carried out firstly, and then the descaling treatment is carried out, so that the influence of the descaling process on the anticorrosion and sterilization processes can be prevented, and the treatment effect is further ensured; the anticorrosion and sterilization treatment and the descaling treatment of the oilfield reinjection water are separately controlled, and the oilfield reinjection water can be reasonably controlled according to the water quality, so that the use flexibility is improved. The utility model has simple structure, reasonable layout, convenient operation, simple operation and maintenance and is suitable for wide popularization and application, and only consumes electric energy in the treatment process.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Wherein the reference numerals are: 1. a first oil removal tank; 2. a second oil removal tank; 3. a first emitter; 4. a second emitter; 5. a first receiving electrode; 6. an emitter connecting rod I; 7. a first control cabinet; 8. a first manhole; 9. a third emitter; 10. a second receiving electrode; 11. an emitter connecting rod II; 12. a second control cabinet; 13. a second manhole.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
Example 1
Referring to fig. 1, the present invention is: the utility model provides an oil field reinjection water anticorrosion processing apparatus, wherein, includes the deoiling jar, arranges a plurality of projecting pole in the deoiling jar respectively in, the receive electrode of electricity connection on the deoiling jar outer wall, runs through the electrically connected projecting pole connecting rod of deoiling jar lateral wall, inner respectively with a plurality of projecting pole electricity respectively to and respectively with projecting pole connecting rod outer end, receive the switch board of electrical connection.
When in use, the reinjection water of the oil field enters the oil removing tank, is treated and then is reinjected to the stratum along the pipeline through pressurization, wherein the emitting electrodes correspond to corrosion prevention, sterilization and descaling respectively, in the whole process, the receiving electrode is arranged on the outer wall of the oil removing tank, so that the whole tank body becomes the receiving electrode, a low-frequency electromagnetic wave transmitting and receiving loop is formed between the emitting electrode corresponding to corrosion prevention and sterilization and the tank body,the transmitting and receiving loop formed between the emitter and the tank body corresponding to the descaling is used for exciting and charging energy to the reinjection water, and the reinjection water releases energy in the flowing process, so that the inner wall of the tank body and the inner wall of the pipeline flowing through the tank body directly form a black magnet layer Fe3O4The method has the advantages of corrosion resistance, corrosion prevention, sterilization and descaling treatment of oilfield reinjection water by a pure physical method, no need of adding a corrosion inhibitor, high treatment efficiency, good effect and simple operation and maintenance.
The core mechanism is as follows: when water passes through the low-frequency electromagnetic wave transmitting and receiving device, the low-frequency electromagnetic wave excites bending, symmetrical and asymmetrical vibration between hydrogen-oxygen bonds in water molecules, and meanwhile, the structure of hydrogen bonds among water clusters is influenced, so that the energy of the water molecules and the water clusters is increased (entropy energy), and the water molecules and the water clusters filled with energy flow in the system and release the energy of the water molecules and the water clusters after leaving the transmitting and receiving device. Thereby reducing the free energy required by some reactions, such as direct oxidation of iron into ferroferric oxide, crystallization of calcium carbonate in water without formation of calcium scale, and deformation of hydrogen bonds connecting double helix structures of DNA without opening. So that these reactions, which cannot occur under natural conditions, can occur. The process of releasing energy can effectively solve the problems of scaling and corrosion of circulating water and inhibit the growth of microorganisms. The low-frequency electromagnetic wave has the characteristics of only influencing molecules, electrons and bonding bonds, not influencing nuclei and having low radiation.
The corrosion prevention mechanism is as follows: after the excitation of low-frequency electromagnetic wave and the change of free energy, no matter red embroidery is not formed in iron corrosion under the condition of high temperature or low temperature, a black magnet layer, namely Fe, is directly formed3O4。Fe3O4The oxide layer has very stable structure, electric conduction, compactness and optimal corrosion resistance. When Fe3O4After the protective layer is formed on the surface of the iron, a conductive protective layer is formed, when current enters the electrolyte through the iron and the magnet layer, the lower iron layer only contacts with the magnet layer, and the current can only enter the electrolyte through the magnet layer, but the magnet layer can not be dissociated, so that the effect of effective corrosion resistance is achieved.
In addition to the formation of magnetite, this also provides uninterrupted protection of the metal as a function of impressed current cathodic protection due to the constant supply of current.
In addition, when the iron molecule is no longer dissociated and lost, the conditions required for the metabolic reaction of SRB bacteria or iron bacteria are basically cut off, so that the bacteria can not obtain the necessary survival energy and die. In addition, the oscillation frequency of the low-frequency electromagnetic wave on the iron surface can also effectively prevent bacteria from attaching to the metal surface, thereby further improving the capability of resisting microbial corrosion.
Furthermore, all bacteria gain energy through redox reactions in the electron transport chain. In living systems, this metabolic electron flow is important because it is accompanied by a change in energy, which allows one energy to be converted to another for survival purposes. The low-frequency electromagnetic wave can interfere the electron circulation in the electron transfer chain, thereby effectively controlling the metabolism and the propagation of bacteria and further achieving the multiple anti-corrosion effect.
Example 2
The rest of example 1 is the same as example 1, except that: the oil removing tank comprises a first oil removing tank 1 and a second oil removing tank 2 which are sequentially communicated along the flowing direction of the reinjection water;
the emitter electrodes comprise a first emitter electrode 3 and a second emitter electrode 4 which are arranged in the first degreasing tank 1, and a third emitter electrode 9 which is arranged in the second degreasing tank 2; correspondingly, the emitter connecting rod comprises an emitter connecting rod I6 electrically connected with the first emitter 3 and the second emitter 4, and an emitter connecting rod II 11 electrically connected with the third emitter 9; the receiving electrode comprises a first receiving electrode 5 which is arranged on the outer wall of the first oil removing tank 1 and corresponds to the first emitting electrode connecting rod 6, and a second receiving electrode 10 which is arranged on the outer wall of the second oil removing tank 2 and corresponds to the second emitting electrode connecting rod 11.
The first emitter 3 and the second emitter 4 arranged in the first oil removing tank 1 are respectively corresponding to corrosion prevention and sterilization, and the third emitter 9 arranged in the second oil removing tank 2 is corresponding to scale removal, so that the corrosion prevention and sterilization processes can be prevented from being affected by the scale removal process, and the treatment effect is further ensured.
Example 3
The rest of example 2 is the same as example 2, except that: the control cabinet comprises a first control cabinet 7 electrically connected with the first receiving electrode 5 and a second control cabinet 12 electrically connected with the second receiving electrode 10, and the control cabinet can control the corrosion prevention and the sterilization of the oilfield reinjection water and the descaling separately, can reasonably control the oilfield reinjection water according to the quality of the oilfield reinjection water, and improves the use flexibility.
Example 4
The rest of example 1 is the same as example 1, except that: the oil removal tank is run through in manhole department to the projecting pole connecting rod, is equipped with first manhole 8 on first oil removal tank 1 promptly, and first 6 of projecting pole connecting rod runs through first oil removal tank 1 in first manhole 8 department, is equipped with second manhole 13 on the second oil removal tank 2, and second 2 of projecting pole connecting rod runs through second oil removal tank 2 in second manhole 13 department, rationally distributed, easy to assemble.
Example 5
The rest of example 2 is the same as example 2, except that: the water inlet pipe of the first oil removal tank 1 penetrates through the side wall of the first oil removal tank 1 and upwards conveys reinjection water to the first oil removal tank 1 from the opening in the middle of the first oil removal tank 1, namely, most oil removal tanks for oil fields are high in applicability.
Example 6
The rest of example 1 is the same as example 1, except that: the opening of the water inlet pipe of the first oil removing tank 1 is located in the center of the first oil removing tank 1, the first emitter 3 and the second emitter 4 are correspondingly located on two sides of the opening of the water inlet pipe, the layout is reasonable, the processing efficiency is high, the first emitter connecting rod 6 is Y-shaped, the structure is simple, and the manufacturing is convenient.
The technical features of the present invention which are not described in the above embodiments may be implemented by or using the prior art, and are not described herein again, of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and variations, modifications, additions or substitutions which may be made by those skilled in the art within the spirit and scope of the present invention should also fall within the protection scope of the present invention.
Claims (8)
1. The utility model provides an oil field reinjection water anticorrosion processing apparatus which characterized in that, includes the deoiling jar, arranges in respectively a plurality of projecting pole in the deoiling jar is connected electrically the receiving electrode on the deoiling jar outer wall runs through respectively deoiling jar lateral wall, inner respectively with a plurality of the projecting pole connecting rod that the projecting pole is connected electrically, and respectively with projecting pole connecting rod outer end the switch board that the receiving electrode is connected electrically.
2. The oilfield reinjection water corrosion prevention treatment device according to claim 1, wherein the oil removal tank comprises a first oil removal tank (1) and a second oil removal tank (2) which are sequentially communicated in the flow direction of the reinjection water;
the emitter electrodes comprise a first emitter electrode (3) and a second emitter electrode (4) which are arranged in the first oil removing tank (1), and a third emitter electrode (9) which is arranged in the second oil removing tank (2); correspondingly, the emitter connecting rod comprises a first emitter connecting rod (6) electrically connected with the first emitter (3) and the second emitter (4), and a second emitter connecting rod (11) electrically connected with the third emitter (9); the receiving electrode comprises a first receiving electrode (5) which is arranged on the outer wall of the first oil removing tank (1) and corresponds to the first emitting electrode connecting rod (6), and a second receiving electrode (10) which is arranged on the outer wall of the second oil removing tank (2) and corresponds to the second emitting electrode connecting rod (11).
3. The oilfield reinjection water corrosion prevention treatment device according to claim 2, wherein the control cabinet comprises a first control cabinet (7) electrically connected with the first receiver electrode (5), and a second control cabinet (12) electrically connected with the second receiver electrode (10).
4. The oilfield reinjection water corrosion prevention treatment device of any one of claims 1 to 3, wherein the emitter connecting rod penetrates the deoiling tank at a manhole.
5. The oilfield reinjection water corrosion prevention treatment device according to claim 2, wherein the water inlet pipe of the first oil removal tank (1) penetrates through the side wall of the first oil removal tank (1) and conveys reinjection water upwards into the first oil removal tank (1) at the middle opening of the first oil removal tank (1).
6. The oilfield reinjection water corrosion prevention treatment device according to claim 5, wherein the opening of the water inlet pipe of the first oil removal tank (1) is located at the center of the first oil removal tank (1).
7. The oilfield reinjection water corrosion prevention treatment device according to claim 6, wherein the first emitter (3) and the second emitter (4) are correspondingly positioned on two sides of the opening of the water inlet pipe.
8. The oilfield reinjection water corrosion prevention treatment device according to claim 6, wherein the first emitter connecting rod (6) is Y-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122388563.0U CN216191417U (en) | 2021-09-30 | 2021-09-30 | Oil field reinjection water anticorrosion treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122388563.0U CN216191417U (en) | 2021-09-30 | 2021-09-30 | Oil field reinjection water anticorrosion treatment device |
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| Publication Number | Publication Date |
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| CN216191417U true CN216191417U (en) | 2022-04-05 |
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| CN202122388563.0U Active CN216191417U (en) | 2021-09-30 | 2021-09-30 | Oil field reinjection water anticorrosion treatment device |
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- 2021-09-30 CN CN202122388563.0U patent/CN216191417U/en active Active
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