CN212954692U - Sterilization device for oilfield reinjection water and oilfield reinjection water treatment system - Google Patents
Sterilization device for oilfield reinjection water and oilfield reinjection water treatment system Download PDFInfo
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- CN212954692U CN212954692U CN202021439265.9U CN202021439265U CN212954692U CN 212954692 U CN212954692 U CN 212954692U CN 202021439265 U CN202021439265 U CN 202021439265U CN 212954692 U CN212954692 U CN 212954692U
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Abstract
The utility model discloses a sterilizing device for oilfield reinjection water and an oilfield reinjection water treatment system, which comprise a filtering device, a sterilizing device and a deoxidizing device which are connected in sequence, wherein the sterilizing device comprises a first fluid channel and a second fluid channel; a first ultrasonic generator is arranged on the channel side wall of the first fluid channel, and a plurality of pairs of electrode plates are arranged at the tail end close to the first fluid channel; a second ultrasonic generator is arranged on the channel side wall of the second fluid channel, and an ultraviolet light irradiation device is arranged at one end of the second fluid channel; a first fluid channel outlet disposed at an end of the first fluid channel is connected to a second fluid channel inlet disposed on a channel sidewall of the second fluid channel. Compared with the prior art, the utility model discloses an oil field reinjection water processing system water treatment's oiliness, SS content, colony count, oxygen content all reach oil field water injection standard requirement, and the running cost is low.
Description
Technical Field
The utility model belongs to oil field reinjection water treatment field, concretely an oil field reinjection water sterilizing equipment and processing system.
Background
At present, most oil fields in China enter the middle stage and the later stage of oil exploitation, the water content of the produced crude oil reaches 70-80%, and the water content of some oil fields reaches even 90%. Along with the annual increase of the water content of crude oil in the oil field, the associated oil field produced water is also continuously increased. The treatment of the oilfield produced water mainly comprises oil removal and suspended matter removal, and the treated oilfield produced water is mainly used for reinjection. Along with the popularization of tertiary oil recovery technology, the treatment difficulty of oilfield produced water is more and more high, and the traditional treatment process cannot meet the reinjection requirement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a modified oil field reinjection water sterilizing equipment to and including this sterilizing equipment's oil field reinjection water processing system.
In order to achieve the above object, the utility model adopts the following technical scheme:
the sterilizing device for oilfield reinjection water is characterized by comprising a first fluid channel and a second fluid channel;
a first ultrasonic generator is arranged on the channel side wall of the first fluid channel, and a plurality of pairs of electrode plates are arranged at the tail end close to the first fluid channel;
a second ultrasonic generator is arranged on the channel side wall of the second fluid channel, and an ultraviolet light irradiation device is arranged at one end of the second fluid channel;
a first fluid channel outlet disposed at an end of the first fluid channel is connected to a second fluid channel inlet disposed on a channel sidewall of the second fluid channel.
In one preferred embodiment of the present invention, the first fluid channel and the second fluid channel are arranged in an L shape.
In one preferred embodiment of the present invention, the cross section of the first fluid channel is square or circular, and the inlet of the first fluid channel is disposed at the other end opposite to the outlet of the first fluid channel; or the other end opposite to the outlet of the first fluid channel is provided with an ultraviolet light irradiation device, and the side wall close to the end is provided with the inlet of the first fluid channel.
The utility model discloses one of the preferred technical scheme, second fluid passage's cross-section is square or circular, second fluid passage's export setting is being close to on the terminal passageway lateral wall of second fluid passage, second fluid passage's entry setting is being close to on the passageway lateral wall of the second fluid passage other end.
In one preferred embodiment of the present invention, the ultraviolet light irradiation device is disposed at the end of the second fluid channel.
In one preferred technical solution of the present invention, the ultraviolet irradiation device includes a transparent window and an ultraviolet lamp, and the ultraviolet light emitted by the ultraviolet lamp irradiates the fluid channel through the transparent window; or the ultraviolet irradiation device comprises an ultraviolet lamp and a transparent protection tube sleeved outside the ultraviolet lamp, and the ultraviolet irradiation device is deeply inserted into the fluid channel.
The utility model discloses one of preferred technical scheme, the plate electrode is total 1 ~ 2 to, the plate electrode is according to anode plate and negative plate and sets up in pairs.
The utility model provides an oil field reinjection water processing system, is including filter equipment, sterilizing equipment and the deaerating plant who connects gradually, sterilizing equipment is as above sterilizing equipment.
The utility model discloses one of the preferred technical scheme, filter equipment includes the diatomaceous earth filter.
The utility model discloses one of the preferred technical scheme, deaerating plant includes vacuum pump and inclosed water tank, the vacuum pump pass through the pipeline with the upper portion of water tank is connected, second fluid passage's export pass through the pipeline with the upper portion of water tank is connected, the deoxidization water outlet of water tank sets up in the lower part.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. under a series of actions of cavitation, mixing, cracking, plug flow, cleaning, descaling and antiscaling and the like of the first ultrasonic wave generator, the electrochemical reaction between the electrode plate and the electrode plate can be promoted, the sterilization effect is improved, the scaling on the surface of the electrode plate is avoided, and the service life of the electrode plate is prolonged.
2. Compare with conventional end-to-end connection, the utility model discloses first fluid passage terminal with second fluid passage lateral wall is connected to be the L type and arrange, can practice thrift the space on the one hand, on the other hand usable fluid changes the further intensive mixing of improvement electrochemistry production bactericidal active thing here fast that flows to, improves the efficiency of indirect sterilization.
3. The utility model discloses an oil field reinjection water processing system water treatment's oiliness, SS content, bacterial colony number, oxygen content all reach oil field water injection standard requirement, and the running cost is low.
Drawings
Fig. 1 is the structure schematic diagram of the oil field reinjection water treatment system of the utility model.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the embodiments of the present invention.
Water quality recommendation index of clastic rock reservoir flooding (SY/T5329-2012)
Prolonging the water quality standard of oilfield flooding:
as shown in figure 1, the oil field reinjection water treatment system of the utility model comprises a filtering device, a sterilizing device and a deoxidizing device which are connected in sequence, wherein the connection is direct or indirect.
The filtering device comprises a diatomite filter 1 which is used for treating oily sewage after natural water or coagulation air floatation sedimentation until the oily sewage meets the medium value standards of oil content, SS content and particle size in reinjection A1 or I grade.
The water inlet of the diatomite filter 1 is respectively connected to a mixing tank 11 (used for premixing diatomite slurry for film coating) and a water inlet tank 10, a film coating pump 12 is installed on a connecting pipeline of the diatomite filter 1 and the mixing tank 11, and a pressure pump 16 is installed on a connecting pipeline of the diatomite filter 1 and the water inlet tank 10.
Considering the water treatment capacity of 100 tons/h: the diatomite filter 1 only needs 22ABC-180 plus 150 (the pump plant of the Town machine without tin), the filter tank DN 1800mm,60 filter rods 13 and the total filter area 22m2After a film was formed on the filter for 24 hours, 15 kg of diatomaceous earth was used, and the water in the tank was squeezed out by an air pressure pump 14 and the filter was directly blown to harden the film. 35 kg of drained dry slag directly enters the garbage can 17 without backwashing water.
The water outlet of the diatomite filter 1 is connected to the intermediate water tank 15 through a pipeline, and the intermediate water tank 15 is connected to the inlet 20 of the first fluid channel 2 through a pipeline. A pressurizing pump 18 is provided on the piping of the intermediate tank 15 and the first fluid passage 2.
The sterilization device comprises a first fluid channel 2 and a second fluid channel 3, wherein the first fluid channel 2 and the second fluid channel 3 are arranged in an L shape.
The first fluid channel 2 and the second fluid channel 3 are both made of stainless steel shells, and the cross sections of the stainless steel shells are square or circular.
A first ultrasonic generator 21 is arranged on the channel side wall of the first fluid channel 2, and preferably, the first ultrasonic generators 21 are arranged in pairs on two opposite channel side walls of the first fluid channel 2. The vibrator with the frequency of the first ultrasonic generator 21 being more than 200KHz has a series of effects of cavitation, mixing, cracking, plug flow, sterilization, algae removal, cleaning, scale removal and prevention and the like on water under the action of a power supply (220V direct current), so that auxiliary sterilization and degradation of organic matters are realized. The local shock wave generated by the device can also cause the treated water to generate a turbulent flow phenomenon.
A plurality of electrode plate pairs 22 are arranged at the end close to the first fluid channel 2, the electrode plate 22 comprises an anode plate and a cathode plate which are paired, and 1-2 pairs of the anode plate and the cathode plate can be arranged, the anode plate can adopt an activated carbon electrode or an activated carbon fiber electrode plate, and the cathode plate can adopt a ruthenium-iridium coated titanium mesh electrodeThe plate, the anode plate and the cathode plate are respectively connected with the positive electrode and the negative electrode of a power supply (50V, 30A direct current). The electric field is generated between the polar plates by electrifying, and the physical action of the electric field and the chemical action of the electrolysis product are utilized to sterilize the water body, wherein the former is direct sterilization, and the latter is indirect sterilization. Direct sterilization is to use electric field to break down cell membrane, causing the cytoplasm of microbe to flow out and kill it, or to disturb its respiratory system and kill it by electron transfer between electrode and microbe cell. Typical direct sterilization is sterilization by an adsorption-electrolysis method, and the adsorption area of the device is activated carbon, activated carbon fiber and the like, and the device adsorbs microorganisms in water and applies voltage to sterilize; for indirect sterilization, the electrolytic product varies with the composition of the electrode material and the electrolyte solution, and the active product of electrolytic sterilization mainly comprises: active chlorine,. OH-, O3And H2O2。
The outlet 23 of the first fluid channel 2 is arranged at the end of the first fluid channel 2. The outlet 23 of the first fluid channel 2 is directly connected to the inlet 30 of the second fluid channel 3, and the inlet 30 of the second fluid channel 3 is arranged on the channel side wall of the second fluid channel 3 near one end thereof, so that the first fluid channel 2 and the second fluid channel 3 are arranged in an L-shape.
A second ultrasonic generator 31 is arranged on the channel side wall of the second fluid channel 3, and preferably, the second ultrasonic generators 31 are arranged in pairs on two opposite channel side walls of the second fluid channel 3. The vibrator with the frequency of more than 200KHz of the second ultrasonic generator 31 has a series of effects of cavitation, mixing, cracking, plug flow, sterilization, algae removal, cleaning, scale removal and prevention and the like on water under the action of a power supply (220V direct current), so that auxiliary sterilization and degradation of organic matters are realized. The local shock wave generated by the device can also cause the treated water to generate a turbulent flow phenomenon.
One end of the second fluid channel 3 is provided with an ultraviolet light irradiation device 32, and in one technical scheme, the ultraviolet light irradiation device 32 is arranged at the tail end of the second fluid channel 3.
The ultraviolet irradiation device 32 comprises a transparent window with a groove arranged at the tail end of the second fluid channel 3 and an ultraviolet lamp (with the wavelength of 180-. The transparent window can adopt transparent glass fiber reinforced plastics.
When the microorganism content in the sewage to be treated is higher, the ultraviolet irradiation device 32 can also adopt an ultraviolet lamp and a transparent protection tube matched with the outer diameter of the ultraviolet lamp, the transparent protection tube is sleeved outside the ultraviolet lamp to play a role in protecting the ultraviolet lamp, so that the ultraviolet irradiation device can go deep into the fluid channel, and one end of the transparent protection tube is sealed and fixed at one end of the fluid channel. Optionally, the first fluid channel is also provided with a uv light illumination device 32 at the end opposite its water outlet 23, and the corresponding water inlet can be adjusted to the side wall near this end.
The utility model discloses sterilizing equipment mainly consumes the power supply, need not add any bactericidal agent, and each fungus index of play water all accords with I level standard.
The outlet 33 of the second fluid channel 3 is arranged on the channel side wall near the end of the second fluid channel 3, the outlet of the second fluid channel 3 is connected to the water inlet at the upper part of the closed water tank 4 through a pipeline, the air outlet at the upper part of the water tank 4 is connected with the vacuum pump 41 through a pipeline, and the air outlet of the water tank 4 is positioned above the water level. The deoxygenated water outlet of the water tank 4 is arranged at the lower part thereof and is connected with the oxygen-isolated water tank 5 through a pipeline. The water surface of the oxygen-isolating water tank 5 is provided with a layer of oxygen-isolating film for preventing air from permeating so as to ensure the stability of the deaerated water, and the bottom effluent is directly led to the water injection pump.
The vacuum pump 41 vacuumizes the water tank 41 (the vacuum degree is 0.95 Pa), so that dissolved oxygen in water is removed, the dissolved oxygen in water can reach below 0.05 mg/ton, and the standard oxygen removal effect is achieved, and the cost is less than 0.1 yuan/ton of water by using the oxygen removal method.
Water outlet: the oil content (mg/l), the suspended matter content (mg/l), and the median suspended matter particle diameter (. mu.m) were 0.64, 0.91, and 0.81, respectively.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The sterilizing device for oilfield reinjection water is characterized by comprising a first fluid channel and a second fluid channel;
a first ultrasonic generator is arranged on the channel side wall of the first fluid channel, and a plurality of pairs of electrode plates are arranged at the tail end close to the first fluid channel;
a second ultrasonic generator is arranged on the channel side wall of the second fluid channel, and an ultraviolet light irradiation device is arranged at one end of the second fluid channel;
a first fluid channel outlet disposed at an end of the first fluid channel is connected to a second fluid channel inlet disposed on a channel sidewall of the second fluid channel.
2. The sterilization apparatus according to claim 1, wherein: the first fluid channel and the second fluid channel are arranged in an L shape.
3. The sterilization apparatus according to claim 1, wherein: the cross section of the first fluid channel is square or circular, and the inlet of the first fluid channel is arranged at the other end opposite to the outlet of the first fluid channel;
or the other end opposite to the outlet of the first fluid channel is provided with an ultraviolet light irradiation device, and the side wall close to the end is provided with the inlet of the first fluid channel.
4. The sterilization apparatus according to claim 1, wherein: the cross section of the second fluid channel is square or circular, the outlet of the second fluid channel is arranged on the channel side wall close to the tail end of the second fluid channel, and the inlet of the second fluid channel is arranged on the channel side wall close to the other end of the second fluid channel.
5. The sterilization apparatus according to claim 1, wherein: the ultraviolet light irradiation device is arranged at the tail end of the second fluid channel.
6. The sterilization apparatus according to claim 1, 3 or 5, wherein: the ultraviolet light irradiation device comprises a transparent window and an ultraviolet light lamp, and ultraviolet light emitted by the ultraviolet light lamp irradiates the inside of the fluid channel through the transparent window;
or the ultraviolet irradiation device comprises an ultraviolet lamp and a transparent protection tube sleeved outside the ultraviolet lamp, and the ultraviolet irradiation device is deeply inserted into the fluid channel.
7. The sterilization apparatus according to claim 1, wherein: the electrode plates are 1-2 pairs in total and are arranged in pairs according to the anode plates and the cathode plates.
8. An oilfield reinjection water treatment system, which comprises a filtering device, a sterilizing device and a deoxidizing device which are sequentially connected, and is characterized in that the sterilizing device is the sterilizing device according to any one of claims 1 to 7.
9. The oilfield reinjection water treatment system of claim 8, wherein: the filtering device comprises a diatomite filter.
10. The oilfield reinjection water treatment system of claim 8, wherein: the deaerating plant includes vacuum pump and inclosed water tank, the vacuum pump pass through the pipeline with the upper portion of water tank is connected, the export of second fluid passage pass through the pipeline with the upper portion of water tank is connected, the deoxidization water export of water tank sets up in the lower part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021439265.9U CN212954692U (en) | 2020-07-20 | 2020-07-20 | Sterilization device for oilfield reinjection water and oilfield reinjection water treatment system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021439265.9U CN212954692U (en) | 2020-07-20 | 2020-07-20 | Sterilization device for oilfield reinjection water and oilfield reinjection water treatment system |
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| CN212954692U true CN212954692U (en) | 2021-04-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777242A (en) * | 2020-07-20 | 2020-10-16 | 无锡市江南给排水设备有限公司 | Oil field reinjection water processing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777242A (en) * | 2020-07-20 | 2020-10-16 | 无锡市江南给排水设备有限公司 | Oil field reinjection water processing system |
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