CN210481098U - Oil field ASP flooding and polymer injection sewage physical treatment device - Google Patents
Oil field ASP flooding and polymer injection sewage physical treatment device Download PDFInfo
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- CN210481098U CN210481098U CN201920859209.1U CN201920859209U CN210481098U CN 210481098 U CN210481098 U CN 210481098U CN 201920859209 U CN201920859209 U CN 201920859209U CN 210481098 U CN210481098 U CN 210481098U
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Abstract
The utility model relates to an oil field ASP flooding and polymer injection sewage physical treatment device and a treatment method. The main water treatment method and steps of the utility model are as follows: air floatation, electro-adsorption, electro-air floatation, sedimentation, micro-electrolysis corrosion inhibition, micro-electrolysis degumming, coarse filtration, fine filtration, electric scale prevention, electric sterilization and electric corrosion inhibition; in the water treatment process, only gas is added and electricity is not added, so that the water treatment system is green, environment-friendly, safe and pollution-free, small in volume, low in gas consumption, low in energy consumption, low in operating cost and good in treatment effect, and is provided with a sludge concentration and solidification system to control vicious circle of pollutants in the water treatment system. Effectively solves the problem that the oilfield tri-element flooding and polymer injection sewage treatment does not reach the standard.
Description
Technical Field
The utility model relates to an oil field water treatment technical field especially relates to an oil field ASP drives and annotates and gathers sewage physical treatment device for oil field ASP drives and annotates the separation processing who gathers sewage high accuracy quality of water.
Background
At present, along with the development of tertiary oil recovery, the occurrence of ternary-displacement and polymer injection sewage in oil fields, particularly ternary-displacement sewage, is caused by the fact that the types of added chemical agents are many, the emulsification degree of water is high, colloidal particles are small, scaling and blockage are serious, normal operation cannot be realized, the existing chemical and biological treatment methods are not suitable, the treated water quality cannot meet the standard requirements, and therefore the problem is regarded as a world water treatment problem by the petroleum boundary
In order to solve the problem, after the ternary drive and polymer injection sewage treatment in the oil field is treated, the standard reinjection or the reuse is carried out, and a Chinese utility model patent of skid-mounted multifunctional integrated oil field water treatment device, patent number: 201310338278.5, the good antiscaling effect and the better oil-water separation and water purification effect can be seen, but the problem that the water quality after purification does not reach the standard is not solved because the removal rate of the colloid particles is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an oil field ASP drives and annotates and gather sewage physical treatment device to solve above-mentioned technical problem, for realizing above-mentioned purpose, the utility model discloses a following technical scheme:
a physical treatment device for oilfield tri-element drive and polymer injection sewage comprises a buffer tank 1, a lift pump 2, a gas-electricity double-gas floating tank 3, a corrosion inhibition glue gathering tank 4, a rough treatment tank 5, a fine treatment tank 6, a fine filter tank 7, an anti-scaling corrosion inhibition tank 8, a purified water tank 9, an air compressor 10, a gas storage tank 11, a sludge concentration solidification machine 12, a sludge slurry pressure pump 13, an oil sludge water separation tank 14, a slurry lift pump 15, a sewage discharge tank 16, an oil collection tank 17, an air-adding manifold 18, a sewage discharge manifold 19 and an oil collection manifold 20;
the gas outlet of the air compressor 10 is connected with the gas inlet of the gas storage tank 11 through a gas source pipe valve, and the gas outlet of the gas storage tank 11 is respectively connected with a connecting pipeline from the outlet of the lift pump 2 to the inlet of the gas-electric double-floating tank 3, a connecting pipeline from the water outlet of the corrosion inhibition glue accumulation tank 4 to the water inlet of the coarse treatment tank 5, and a connecting pipeline from the outlet of the coarse treatment tank 5 to the inlet of the fine treatment tank 6 through a gas filling manifold 18;
the sewage disposal pool 16 is an underground pool and is respectively connected with sewage disposal ports of the gas-electricity double-gas floating tank 3, the corrosion inhibition glue accumulation tank 4, the rough treatment tank 5, the fine treatment tank 6, the fine filter tank 7 and the antiscale corrosion inhibition tank 8 through a sewage disposal manifold 19;
the oil collecting pool 17 is an underground pool and is respectively connected with oil collecting ports of the gas-electricity double-gas floating tank 3, the corrosion inhibition glue gathering tank 4, the rough treatment tank 5, the fine treatment tank 6, the fine filter tank 7, the antiscale corrosion inhibition tank 8 and the oil sludge-water separation pool 14 through an oil collecting manifold 20;
the oil sludge water separation tank 14 is a circular tank, an inlet of the oil sludge water separation tank 14 is connected with an outlet of the slurry lift pump 15 through a pipe valve, and an inlet of the slurry lift pump 15 is connected with the sewage discharge tank 16 through a pipe valve; the water outlet of the oil sludge water separation tank 14 is connected with the liquid inlet pipe of the lift pump 2 through a pipe valve; a sludge discharge port of the sludge-water separation tank 14 is connected with an inlet of a sludge slurry pressure pump 13 through a pipe valve; the outlet of the sludge slurry pressure pump 13 is connected with the inlet of the sludge concentration solidification machine 12 through a pipe valve; the outlet water of the sludge concentration solidification machine 12 is connected with a sewage disposal pool 16 through a pipe valve.
A physical treatment method for oilfield tri-element flooding and polymer injection sewage comprises the following steps:
(1) lifting the sewage in the buffer tank by a lifting pump, converging the dissolved gas in the sewage in the pipeline by an air compressor, a gas source pipe valve, a gas storage tank and a gas filling pipe on an inlet connecting pipeline from the outlet of the lifting pump to the gas-electricity double-gas floating tank;
(2) the sewage after air dissolving enters a vortex air floating component in an air-electricity double-air floating tank, vortex centripetal air floating oil removal is carried out, floating oil and dispersed oil in the sewage are removed through the synergistic effect of centrifugal force and gas buoyancy, and primary air floating is completed;
(3) the sewage after air floatation is redirected into an electric adsorption component in an air-electric double-air floatation tank to adsorb polar substances, metal cations are adsorbed on a cathode to obtain electrons to form scale, the adsorption performance and hydrogen gas precipitation can be reduced after long-time operation, and the adsorbed polar substances can be removed by reversing the electrode; changing the electrode to the cathode, changing the cathode into the anode into the cathode, and combining the scale on the changed anode with chloride ions, hydroxyl and acid radicals to generate alkali and salt to fall off;
(4) during the electric adsorption, hydrogen is separated out on the cathode, and chlorine, oxygen and chlorine dioxide gases are separated out on the anode, and the gases can carry out the emulsification particles and part of colloid in the sewage to complete the second air floatation;
(5) settling the sewage after the electro-adsorption treatment in a gas-electric double-air-flotation tank under the action of gravity, inertia and redirection, settling settleable particles to the bottom of the tank, discharging to a sewage disposal pool, discharging the settled sewage from a water outlet, and entering a corrosion inhibition glue accumulation tank;
(6) sewage enters the composite micro-electrolysis filler in the corrosion inhibition glue gathering tank from the bottom of the tank, the cathode of the composite micro-electrolysis filler releases electrons to a water body, hydrogen ions in the water are oxidized into hydrogen, and the reduction of the hydrogen ions improves the PH value of the sewage and reduces the corrosivity of the water;
(7) the anode of the composite micro-electrolysis filler is provided with a composite flocculant of alkali and salt generated by the falling of alkaline metal cations and the combination of hydroxide radicals and acid radicals, and the formed flocculant is combined with colloid particles in water to form large alum floc particles to finish the glue aggregation treatment;
(8) discharging the water subjected to the glue gathering treatment from the top of the tank and allowing the water to enter a rough treatment tank;
(9) carrying out secondary air dissolving on a connecting pipeline from an outlet of the corrosion inhibition glue accumulation tank to an inlet at the top of the rough treatment tank;
(10) the dissolved air water enters an upper turbulent air floatation component in the rough treatment tank to carry out third air floatation oil removal; micro-vortex in turbulent air flotation coalesces small oil droplets in sewage into large oil droplets, and small particles are coalesced into large particles;
(11) the water after turbulent air flotation enters a coarse filtering layer for coarse filtering, and the filtered water is discharged from a water outlet at the bottom of the tank and enters a fine treatment tank;
(12) carrying out third gas dissolving on an inlet pipeline from a water outlet of the coarse treatment tank to the fine treatment tank;
(13) the water after air dissolving enters a turbulent air floatation component at the upper part of the fine treatment tank to carry out fourth air floatation; micro-vortex in turbulent air flotation coalesces small oil droplets in sewage into large oil droplets, and small particles are coalesced into large particles;
(14) the water after turbulent air floatation enters a fine filtering layer for fine filtering; the filtered water is discharged from a water outlet at the bottom of the tank and enters a fine filtering tank;
(15) the water after fine filtration enters a fine filtration tank for metal membrane fine filtration;
(16) and the water after the fine filtration in the fine filtration tank enters an antiscaling corrosion inhibition tank for the treatment of the electric elimination of the cation polarity, and the treated water enters a purification water tank for standby.
A sludge treatment method for physical treatment of oilfield tri-element flooding and polymer injection sewage comprises the following steps:
(1) the sewage collected by the sewage disposal pool is lifted by a mud lift pump and is pumped into an oil sludge water separation pool;
(2) stirring, adding a medicament, coagulating and settling in an oil-sludge-water separation tank;
(3) recovering the settled oil to an oil recovery tank, returning water to an inlet of a lift pump, and pumping the slurry into a sludge concentration solidification machine by a slurry pressure pump;
(4) and (4) concentrating and solidifying the sludge by a sludge concentration and solidification machine, returning effluent to a sewage disposal pool, bagging the sludge, transporting the sludge out, and then treating the sludge, thereby finishing sludge treatment.
The utility model has the advantages of it is following: the utility model discloses a water treatment is that the physical method that adds electricity is added in the gas filling handles, and this method is green, safe pollution-free not only, and breakdown of emulsion, gather gluey, scale control, sterilization, corrosion inhibition effect are better than other treatment methods at present moreover, and the engineering investment is low with the working costs, and the easy management can extensively be used for the oil field ternary to drive and annotate the processing of gathering sewage.
Drawings
FIG. 1 is a diagram illustrating the usage of the present invention;
FIG. 2 is a gas filling manifold diagram of the present invention;
FIG. 3 is a diagram of a blowdown manifold of the present invention;
FIG. 4 is a diagram of the oil collecting manifold of the present invention;
in the figure, 1, a buffer tank, 2, a lifting pump, 3, a gas-electricity double-gas floating tank, 4, a corrosion inhibition glue accumulation tank, 5, a rough treatment tank, 6, a fine treatment tank, 7, a fine filter tank, 8, an anti-scaling corrosion inhibition tank, 9, a purified water tank, 10, an air compressor, 11, an air storage tank, 12, a sludge concentration solidification machine, 13, a sludge slurry pressure pump, 14, an oil sludge-water separation tank, 15, a slurry lifting pump, 16, a sewage discharge tank, 17, an oil collection tank, 18, a gas filling manifold, 19, a sewage discharge manifold and 20, an oil collection manifold are arranged.
Detailed Description
The invention is explained in further detail below with reference to the figures and the embodiments.
A physical treatment device for oilfield tri-element drive and polymer injection sewage comprises a buffer tank 1, a lift pump 2, a gas-electricity double-gas floating tank 3, a corrosion inhibition glue gathering tank 4, a rough treatment tank 5, a fine treatment tank 6, a fine filter tank 7, an anti-scaling corrosion inhibition tank 8, a purified water tank 9, an air compressor 10, a gas storage tank 11, a sludge concentration solidification machine 12, a sludge slurry pressure pump 13, an oil sludge water separation tank 14, a slurry lift pump 15, a sewage discharge tank 16, an oil collection tank 17, an air-adding manifold 18, a sewage discharge manifold 19 and an oil collection manifold 20;
the gas outlet of the air compressor 10 is connected with the gas inlet of the gas storage tank 11 through a gas source pipe valve, and the gas outlet of the gas storage tank 11 is respectively connected with a connecting pipeline from the outlet of the lift pump 2 to the inlet of the gas-electric double-floating tank 3, a connecting pipeline from the water outlet of the corrosion inhibition glue accumulation tank 4 to the water inlet of the coarse treatment tank 5, and a connecting pipeline from the outlet of the coarse treatment tank 5 to the inlet of the fine treatment tank 6 through a gas filling manifold 18;
the sewage disposal pool 16 is an underground pool and is respectively connected with sewage disposal ports of the gas-electricity double-gas floating tank 3, the corrosion inhibition glue accumulation tank 4, the rough treatment tank 5, the fine treatment tank 6, the fine filter tank 7 and the antiscale corrosion inhibition tank 8 through a sewage disposal manifold 19;
the oil collecting pool 17 is an underground pool and is respectively connected with oil collecting ports of the gas-electricity double-gas floating tank 3, the corrosion inhibition glue gathering tank 4, the rough treatment tank 5, the fine treatment tank 6, the fine filter tank 7, the antiscale corrosion inhibition tank 8 and the oil sludge-water separation pool 14 through an oil collecting manifold 20;
the oil sludge water separation tank 14 is a circular tank, an inlet of the oil sludge water separation tank 14 is connected with an outlet of the slurry lift pump 15 through a pipe valve, and an inlet of the slurry lift pump 15 is connected with the sewage discharge tank 16 through a pipe valve; the water outlet of the oil sludge water separation tank 14 is connected with the liquid inlet pipe of the lift pump 2 through a pipe valve; a sludge discharge port of the sludge-water separation tank 14 is connected with an inlet of a sludge slurry pressure pump 13 through a pipe valve; the outlet of the sludge slurry pressure pump 13 is connected with the inlet of the sludge concentration solidification machine 12 through a pipe valve; the outlet water of the sludge concentration solidification machine 12 is connected with a sewage disposal pool 16 through a pipe valve.
A physical treatment method for the sewage generated by ternary drive and polymer injection in oil field features that only gas or electricity is added and no chemical is added during water treatment.
The gas-electricity double-gas floating tank treatment method comprises the following steps:
the sewage in the buffer tank is pressurized and dissolved with a lift pump, then enters a vortex component in the gas-electric double-gas floating tank, oil gas is transported inwards circularly by centrifugal force generated by vortex rotation, the oil gas floats to the top of the tank under the action of gas buoyancy after moving to the center, and is discharged through an oil collecting pipe orifice of the top of the tank and recovered into an oil collecting pool; the liquid enters an electro-adsorption component for electro-adsorption demulsification, gel aggregation and electro-air flotation oil removal, the water after electro-air flotation oil removal goes and is redirected to enter a settling zone, settled particles are settled to the bottom of the tank and are discharged into a sewage disposal pool from a sewage disposal pipe orifice through a sewage disposal manifold, and the settled water is discharged from a water outlet and enters a corrosion inhibition gel aggregation tank for retreatment.
The method for treating the corrosion inhibition glue accumulation tank comprises the following steps:
the effluent treated by the gas-electricity double-gas floating tank enters the composite micro-electrolysis filler in the tank from the bottom of the corrosion inhibition glue gathering tank, the composite micro-electrolysis filler firstly releases electrons to a water body when meeting a water cathode, hydrogen ions in the water are oxidized into hydrogen, and the reduction of the hydrogen ions improves the pH value of the sewage and reduces the corrosivity of the water; meanwhile, alkaline metal cations on the anode fall off and are combined with hydroxyl and acid radicals to generate an alkali and salt composite flocculant, the formed flocculant is combined with colloid particles in water to form large alum floc particles to finish the glue coagulation treatment, and water treated by the corrosion inhibition glue coagulation tank is discharged from the upper part and enters a rough treatment tank for retreatment.
The method for treating the rough treatment tank comprises the following steps:
carrying out secondary air dissolution on the water inlet pipeline of the rough treatment tank, and enabling sewage after air dissolution to enter an upper turbulent air floatation component in the rough treatment tank for third air floatation oil removal and coagulation; the separated oil floats to the tank top under the buoyancy of gas, and is discharged into an oil collecting pool through an oil collecting pipe orifice and an oil collecting manifold; the water after air floatation enters a coarse filtering layer for coarse filtering, intercepted particles are filtered out through the coarse filtering, and the water after coarse filtering is discharged from the lower part and then enters a fine processing tank for retreatment.
The fine processing tank processing method and the steps are as follows:
carrying out third air dissolving on a water inlet pipe line of the fine treatment tank, and enabling water after air dissolving to firstly enter an upper turbulent air floating component in the fine treatment tank for fourth air floating oil removal and coagulation; the separated oil floats to the tank top under the buoyancy of gas, and is discharged into an oil collecting pool through an oil collecting pipe orifice and an oil collecting manifold; the water after air floatation enters a fine filtering layer for fine filtering, intercepted particles are filtered out through the fine filtering, and the water after fine filtering is discharged from the lower part and then enters a fine filtering tank for fine filtering.
The fine filtering tank treatment method comprises the following steps:
the water after fine filtration enters a fine filtration tank for fine filtration of a metal film, and the effluent after fine filtration enters an antiscaling corrosion inhibition tank for treatment;
the method for treating the anti-scaling corrosion inhibition tank comprises the following steps:
the water after the fine filtration of the fine filtration tank enters the antiscaling corrosion inhibition tank to be subjected to multistage discharge treatment by a multistage electric cation elimination water treatment device, so that cations of the water are changed into asexual molecules, no cations reach a cathode of a metal surface to obtain electrons, no electrons are lost at the cathode of the steel body, no metal ions fall off at the anode, and the steel body is not corroded; in addition, no metal cation is combined with hydroxide radical and acid radical to produce alkali and salt, so that no scale is formed in water.
For the three-stage treatment of coarse, fine and fine, the treatment is selected according to the water quality requirement after treatment.
In order to restrain pollutant in a sewage pond from returning to a system and cause vicious circle, the pollutant must be removed from the system, a matched sludge concentration and solidification system is needed, and a medicament is added in sludge treatment, wherein the method comprises the following steps:
the oil sludge water separation pool treatment method comprises the following steps:
and (3) lifting the sewage in the sewage disposal pool by a mud lift pump, pumping the sewage into an oil-sludge-water separation pool, adding a medicament, stirring, coagulating and settling, recovering oil to an oil recovery pool, feeding water into a lift pump inlet, performing the treatment in the steps, pumping the slurry by a sludge slurry pressure pump, pressurizing and pouring the slurry into a sludge concentration solidification machine for retreatment.
The sludge concentration solidification machine treatment method comprises the following steps:
the sludge concentration solidification machine discharges effluent into a sewage disposal pool through centrifugation or squeezing, and the sludge is bagged and transported out for harmless treatment.
The foregoing is a preferred embodiment of the present invention, and for those skilled in the art to understand the teaching of the present invention, the changes, modifications, replacements and variations to the embodiments will still fall within the protection scope of the present invention without departing from the principle and spirit of the present invention.
Claims (1)
1. A physical treatment device for oilfield tri-element drive and polymer injection sewage is characterized by comprising a buffer tank (1), a lift pump (2), a gas-electricity double-gas floating tank (3), a corrosion inhibition glue accumulation tank (4), a rough treatment tank (5), a fine treatment tank (6), a fine filter tank (7), an anti-scaling corrosion inhibition tank (8), a purified water tank (9), an air compressor (10), an air storage tank (11), a sludge concentration solidification machine (12), a sludge slurry pressure pump (13), an oil sludge water separation tank (14), a sludge lift pump (15), a sewage discharge tank (16), an oil collection tank (17), an air-entrapping manifold (18), a sewage discharge manifold (19) and an oil collection manifold (20);
the gas outlet of the air compressor (10) is connected with the gas inlet of the gas storage tank (11) through a gas source pipe valve, the gas outlet of the gas storage tank (11) is respectively connected with a pipeline connecting the outlet of the lift pump (2) to the inlet of the gas-electric double-floating tank (3), a pipeline connecting the water outlet of the corrosion inhibition glue accumulation tank (4) to the water inlet of the coarse treatment tank (5), and a pipeline connecting the outlet of the coarse treatment tank (5) to the inlet of the fine treatment tank (6) through a gas filling manifold (18);
the sewage disposal pool (16) is an underground pool and is respectively connected with sewage outlets of the gas-electricity double-gas floating tank (3), the corrosion inhibition glue accumulation tank (4), the coarse treatment tank (5), the fine treatment tank (6), the fine filter tank (7) and the antiscale corrosion inhibition tank (8) through a sewage disposal manifold (19);
the oil collecting pool (17) is an underground pool and is respectively connected with oil collecting ports of the gas-electricity double-gas floating tank (3), the corrosion inhibition glue gathering tank (4), the coarse treatment tank (5), the fine treatment tank (6), the fine filter tank (7), the scale prevention corrosion inhibition tank (8) and the oil sludge-water separation pool (14) through an oil collecting manifold (20);
the sludge-water separation tank (14) is a circular tank, the inlet of the sludge-water separation tank (14) is connected with the outlet of the slurry lift pump (15) through a pipe valve, and the inlet of the slurry lift pump (15) is connected with the sewage discharge tank (16) through a pipe valve; the water outlet of the oil-sludge water separation tank (14) is connected with the liquid inlet pipe of the lift pump (2) through a pipe valve; a sludge discharge port of the sludge-water separation tank (14) is connected with an inlet of a sludge slurry pressure pump (13) through a pipe valve; the outlet of the sludge slurry pressure pump (13) is connected with the inlet of the sludge concentration solidification machine (12) through a pipe valve; the water outlet of the sludge concentration solidification machine (12) is connected with a sewage disposal pool (16) through a pipe valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920859209.1U CN210481098U (en) | 2019-06-10 | 2019-06-10 | Oil field ASP flooding and polymer injection sewage physical treatment device |
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| CN201920859209.1U CN210481098U (en) | 2019-06-10 | 2019-06-10 | Oil field ASP flooding and polymer injection sewage physical treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112759159A (en) * | 2021-02-04 | 2021-05-07 | 张后继 | Turbulent air-floating filtering electric cation-eliminating three-in-one treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112759159A (en) * | 2021-02-04 | 2021-05-07 | 张后继 | Turbulent air-floating filtering electric cation-eliminating three-in-one treatment device |
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