CN105439275A - Deironing and sterilization liquid distributing tank for oilfield sewage - Google Patents
Deironing and sterilization liquid distributing tank for oilfield sewage Download PDFInfo
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- CN105439275A CN105439275A CN201510876135.9A CN201510876135A CN105439275A CN 105439275 A CN105439275 A CN 105439275A CN 201510876135 A CN201510876135 A CN 201510876135A CN 105439275 A CN105439275 A CN 105439275A
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- tank body
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- groove
- tank
- flexible pipe
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Abstract
The invention provides a deironing and sterilization liquid distributing tank for oilfield sewage. The liquid distributing tank comprises a tank body, clamping grooves, a protection frame, a stirrer, an oxygen pump and a hose with screening holes. The tank body is open. The protection frame is arranged in the tank body and used for supporting the stirrer. The oxygen pump is arranged outside the tank body and used for supplying oxygen containing gas into the tank body. The exhaust end of the oxygen pump penetrates through the tank body and is communicated with one end of the hose with the screening holes. The clamping grooves are formed in the inner circumferential wall of the tank body and used for fixing the hose with the screening holes. The hose with the screening holes can be fixed to the inner circumferential wall of the tank body through all the clamping grooves, or is fixed to the inner circumferential wall of the tank body only through part of the clamping grooves. The liquid distributing tank has the advantages of being simple, practical, low in cost, safe, environmentally friendly, simple in operation process, low in labor intensity, thorough in sterilization, more remarkable in effect and the like, no additional bactericide needs to be added, and the problem about the compatibility of a sewage treatment agent and a polymer is avoided.
Description
Technical field
The invention belongs to disposing polluted water in oil technical field, be specifically related to a kind of oilfield sewage deironing sterilization Agitation Tank.
Background technology
In transfer drive, profile control, water blockoff, polymer flooding and chemical flooding construction process, from the angle of fresh-water-saving resource and environmental protection, direct employing oilfield produced waste water prepared polymer usually.But oilfield sewage salinity is high, vitriol bacteria content is high, Fe
2+content is high, be directly used for prepared polymer time, easily polymer molecule is damaged, makes polymer molecule severe curl, and by degradation by bacteria, particularly Fe
2+redox degraded, cause polymer solution viscosity very low, tertiary oil recovery deficiency in economic performance.In order to solve the problem adopting oilfield sewage prepared polymer, first must eliminate or suppressing bacterium in oilfield produced waste water, Fe
2+activity, thus improve the viscosity of polymers soln, reduce polymkeric substance working concentration and tertiary oil recovery cost.
Current disposing polluted water in oil technology mainly adopts sterilant, but requires that the treatment agent added must be good with the compatibleness of polymkeric substance, does not namely affect polymer molecular structure and soltion viscosity.This sewage treatmentmethod not only operates and controls difficulty comparatively greatly, complex process, and cost is comparatively large, and labor strength is large.Chinese patent CN203922896U " a kind of sewage deironing sterilizing unit " provides a kind of simple oilfield sewage deironing sterilizing unit, but it is lower mainly to there is germ-killing efficiency, and de-ferrous effect is undesirable.
Be necessary that research more has simple and practical, safety and environmental protection, with low cost, the simple sewage treatmentmethod of operating procedure for this reason, reduce vitriol bacterium, Fe in oilfield sewage
2+to polymer degradation, improve tertiary oil recovery effect.
Summary of the invention
For solving the problem, the object of the present invention is to provide a kind of oilfield sewage deironing sterilization Agitation Tank, the oxygen deironing germicidal treatment of exposing to the sun for oilfield sewage can be realized by this Agitation Tank, there is the features such as simple and practical, with low cost.
For achieving the above object, the invention provides a kind of oilfield sewage deironing sterilization Agitation Tank, this Agitation Tank comprises: tank body, draw-in groove, protective frame, agitator, oxygen pump and band sieve aperture flexible pipe;
Wherein,
Described tank body is uncovered;
Described protective frame is located at described tank interior, for supporting described agitator;
Described oxygen pump is located at the outside of described tank body, for providing oxygen-containing gas in tank body; The exhaust side of described oxygen pump through tank body, and is communicated with one end of band sieve aperture flexible pipe;
Described draw-in groove is located at tank body internal perisporium, and for fixing described band sieve aperture flexible pipe, described band sieve aperture flexible pipe is fixed on tank body internal perisporium by whole draw-in groove, or is fixed on tank body internal perisporium by means of only part draw-in groove.
In above-mentioned sewage deironing sterilization Agitation Tank, preferably, the quantity of described draw-in groove is more than 4, more preferably more than 8.
In above-mentioned sewage deironing sterilization Agitation Tank, preferably, each draw-in groove is welded in the middle and lower part of tank body internal perisporium in horizontal distribution mode; Further preferably, each draw-in groove is welded in apart from the same level at tank base 10-20cm place.
In above-mentioned sewage deironing sterilization Agitation Tank, preferably, each draw-in groove is welded in tank body internal perisporium in Spiral distribution mode.
In above-mentioned sewage deironing sterilization Agitation Tank, preferably, direction when being with the stringing of sieve aperture flexible pipe trend to stir with agitator is consistent.That is, for the one end of the band sieve aperture flexible pipe be not connected with oxygen pump, can according to the mixing direction of agitator, selection is that clockwise direction passes through draw-in groove successively by draw-in groove or counter clockwise direction successively; During in order to make working order, the gas flow in band sieve aperture flexible pipe is consistent with the mixing direction of agitator, can by arrange band sieve aperture flexible pipe move towards realize, also can by the mixing direction realization of adjustment agitator.
In above-mentioned sewage deironing sterilization Agitation Tank, preferably, draw-in groove is with fixed form fixing strip sieve aperture flexible pipe of boring a hole; Further preferably, at the draw-in groove place at the two ends of band sieve aperture flexible pipe, separately fixed with wireline.
In above-mentioned sewage deironing sterilization Agitation Tank, preferably, described agitator comprises rotation axis, motor and straight paddle.
In above-mentioned sewage deironing sterilization Agitation Tank, preferably, the sieve aperture on described band sieve aperture flexible pipe is circular.
In above-mentioned sewage deironing sterilization Agitation Tank, preferably, described tank base is provided with waste discharge mouth, can discharge waste residue, waste liquid.
In above-mentioned sewage deironing sterilization Agitation Tank, preferably, described protective frame is welded with protection steel mesh, protection steel mesh is provided with the opening for batch turning dosing.
In above-mentioned sewage deironing sterilization Agitation Tank, preferably, the outer wall of described tank body is provided with the hook for lifting operation.
In above-mentioned sewage deironing sterilization Agitation Tank, preferably, described protective frame comprises four crossbearers, supports described agitator with well word arrangement mode.
When adopting oilfield sewage deironing sterilization Agitation Tank provided by the invention to carry out deironing sterilization sewage disposal, first open oxygen pump, starter motor stirs, and the bubble that band sieve aperture flexible pipe is released fully contacts with sewage, utilizes the oxygen in oxygen-containing gas to make Fe in sewage
2+be oxidized to Fe
3+, form Fe (OH)
3precipitation reaches the object of deironing, utilizes redox reaction simultaneously, kills the sulphate reducing bacteria in sewage.Principle is by the oxygen in air and its meta-bolites S
2-react, reduce S
2-concentration, reduces S
2-to the corrosion of tank body, thus reduce Fe
2+generation, and then reduce the activity of Growth of Sulfate Reducing Bacteria biological enzyme, control it and produce.In order to make vitriol bacteria content, Fe in sewage
2+content reduces as far as possible, can continue to carry out deironing germicidal treatment to mixed solution in dosing process.
Oilfield sewage deironing sterilization Agitation Tank provided by the invention, possesses deironing, sterilization and dosing function simultaneously.It may be used for the deironing germicidal treatment of oilfield oil well water plugging and profile controlling, transfer drive, polymer flooding, chemical flooding sewage.And have simple and practical, with low cost, safety and environmental protection, operating procedure is simple, and labour intensity is low, and the features such as sterilization is thorough, more remarkable effect, do not need additionally to add sterilant, avoid the problem of sewage-treating agent and polymkeric substance compatibleness.
Accompanying drawing explanation
The diagrammatic cross-section of the oilfield sewage deironing sterilization Agitation Tank that Fig. 1 provides for embodiment 1;
Main Reference label declaration:
1 tank body; 2 hooks; 3 draw-in grooves; 4 protective frame; 5 rotation axiss; 6 motors; 7 straight paddles; 8 oxygen pumps; 9 band sieve aperture flexible pipes; 10 fluid distributing holes.
Embodiment
In order to there be understanding clearly to technical characteristic of the present invention, object and beneficial effect, existing following detailed description is carried out to technical scheme of the present invention, but can not be interpreted as to of the present invention can the restriction of practical range.
Embodiment
The present embodiment provides a kind of oilfield sewage deironing sterilization Agitation Tank (diagrammatic cross-section as shown in Figure 1), and this Agitation Tank comprises: tank body 1, hook 2, draw-in groove 3, protective frame 4, rotation axis 5, motor 6, straight paddle 7, oxygen pump 8, band sieve aperture flexible pipe 9, fluid distributing hole 10;
Wherein,
Tank body 1 is square;
Protective frame 4 comprises bag four crossbearers, is welded in tank body 1 inwall with well word arrangement mode, and described protective frame 4 is provided with agitator and protection steel mesh, and described agitator comprises rotation axis 5, motor 6 and straight paddle 7; On described protection steel mesh, be provided with fluid distributing hole 10 near a place of inner tank wall;
Be welded with 12 draw-in grooves 3 in tank body 1, each of tank body has 3 draw-in grooves respectively, and each draw-in groove is positioned at apart from the same level at tank base 15cm place;
Oxygen pump 8 is located at the outside of described tank body, for providing air in tank body 1; The exhaust side of described oxygen pump 8 through tank body, and is communicated with one end of band sieve aperture flexible pipe 9;
Band sieve aperture flexible pipe 9 in the direction of the clock (when opening stirring, mixing direction is also clockwise), successively through whole draw-in groove, is fixed in tank body internal perisporium; At the draw-in groove place at the two ends of band sieve aperture flexible pipe, separately fixed with wireline;
The two sides that the outer wall of tank body is relative is welded 2 hooks 2 for lifting operation respectively.
When extemporaneous preparation polymers soln, adopt above-mentioned oilfield sewage deironing sterilization Agitation Tank, can carry out according to following steps:
First open oxygen pump 8, starter motor 6 stirs, and the bubble that band sieve aperture flexible pipe 9 is released fully contacts with sewage, utilizes the oxygen in air to make Fe in sewage
2+be oxidized to Fe
3+, form Fe (OH)
3precipitation reaches the object of deironing, and utilize redox reaction simultaneously, kill the sulphate reducing bacteria in sewage, principle is by the oxygen in air and its meta-bolites S
2-react, reduce S
2-concentration, reduces S
2-to the corrosion of tank body, thus reduce Fe
2+generation, and then reduce the activity of Growth of Sulfate Reducing Bacteria biological enzyme, control it and produce.
By to process after sewage quality detected result find: the sulphate reducing bacteria in on-the-spot return water from original 324/mL be reduced to 22/mL, Fe
2+concentration is reduced to below 0.8mg/L from original 6.28mg/L, S
2-concentration is reduced to below 0.4mg/L from original 4.25mg/L, and indices reaches the requirement of Q/SH10201831-2007 gelling system dosing water quality standard, solves Fe in sewage
2+, S
2-with the impact of sulphate reducing bacteria, ensure that the viscosity of polymers soln.
Claims (10)
1. an oilfield sewage deironing sterilization Agitation Tank, is characterized in that, this Agitation Tank comprises: tank body, draw-in groove, protective frame, agitator, oxygen pump and band sieve aperture flexible pipe;
Wherein,
Described tank body is uncovered;
Described protective frame is located at described tank interior, for supporting described agitator;
Described oxygen pump is located at the outside of described tank body, for providing oxygen-containing gas in tank body; The exhaust side of described oxygen pump through tank body, and is communicated with one end of band sieve aperture flexible pipe;
Described draw-in groove is located at tank body internal perisporium, and for fixing described band sieve aperture flexible pipe, described band sieve aperture flexible pipe is fixed on tank body internal perisporium by whole draw-in groove, or is fixed on tank body internal perisporium by means of only part draw-in groove.
2. Agitation Tank according to claim 1, is characterized in that, the quantity of described draw-in groove is more than 4, is preferably more than 8.
3. Agitation Tank according to claim 1 and 2, is characterized in that, each draw-in groove is welded in the middle and lower part of tank body internal perisporium in horizontal distribution mode; Preferably, each draw-in groove is welded in apart from the same level at tank base 10-20cm place.
4. Agitation Tank according to claim 1 and 2, is characterized in that, each draw-in groove is welded in tank body internal perisporium in Spiral distribution mode.
5. Agitation Tank according to claim 1, is characterized in that, the direction when stringing trend of band sieve aperture flexible pipe stirs with agitator is consistent.
6. Agitation Tank according to claim 1, is characterized in that, draw-in groove is with fixed form fixing strip sieve aperture flexible pipe of boring a hole; Preferably, at the draw-in groove place at the two ends of band sieve aperture flexible pipe, separately fixed with wireline.
7. Agitation Tank according to claim 1, is characterized in that, described agitator comprises rotation axis, motor and straight paddle.
8. Agitation Tank according to claim 1, is characterized in that, described protective frame is welded with protection steel mesh, and protection steel mesh is provided with the opening for batch turning dosing.
9. Agitation Tank according to claim 1, is characterized in that, the outer wall of described tank body is provided with the hook for lifting operation.
10. Agitation Tank according to claim 1, is characterized in that, described protective frame comprises four crossbearers, supports described agitator with well word arrangement mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510876135.9A CN105439275B (en) | 2015-12-03 | 2015-12-03 | A kind of oilfield sewage sterilizes Agitation Tank except iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510876135.9A CN105439275B (en) | 2015-12-03 | 2015-12-03 | A kind of oilfield sewage sterilizes Agitation Tank except iron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105439275A true CN105439275A (en) | 2016-03-30 |
| CN105439275B CN105439275B (en) | 2018-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510876135.9A Active CN105439275B (en) | 2015-12-03 | 2015-12-03 | A kind of oilfield sewage sterilizes Agitation Tank except iron |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998019779A1 (en) * | 1996-11-06 | 1998-05-14 | Atomaer Pty. Ltd. | Improved leaching of mineral ores |
| CN201857299U (en) * | 2010-09-27 | 2011-06-08 | 大庆油田有限责任公司 | Skid mounted integrated iron removal device |
| CN102408172A (en) * | 2010-09-26 | 2012-04-11 | 中国石油化工股份有限公司 | Pretreatment method for preparing polymer solution by recovering oil field produced water |
| CN103172163A (en) * | 2013-03-20 | 2013-06-26 | 浙江双屿实业有限公司 | Oxidation tank |
| CN203922896U (en) * | 2014-06-06 | 2014-11-05 | 中国石油天然气股份有限公司 | A kind of sewage deironing sterilizing unit |
| CN205419886U (en) * | 2015-12-03 | 2016-08-03 | 中国石油天然气股份有限公司 | Oil field sewage deironing is disinfected and is joined in marriage fluid reservoir |
-
2015
- 2015-12-03 CN CN201510876135.9A patent/CN105439275B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998019779A1 (en) * | 1996-11-06 | 1998-05-14 | Atomaer Pty. Ltd. | Improved leaching of mineral ores |
| CN102408172A (en) * | 2010-09-26 | 2012-04-11 | 中国石油化工股份有限公司 | Pretreatment method for preparing polymer solution by recovering oil field produced water |
| CN201857299U (en) * | 2010-09-27 | 2011-06-08 | 大庆油田有限责任公司 | Skid mounted integrated iron removal device |
| CN103172163A (en) * | 2013-03-20 | 2013-06-26 | 浙江双屿实业有限公司 | Oxidation tank |
| CN203922896U (en) * | 2014-06-06 | 2014-11-05 | 中国石油天然气股份有限公司 | A kind of sewage deironing sterilizing unit |
| CN205419886U (en) * | 2015-12-03 | 2016-08-03 | 中国石油天然气股份有限公司 | Oil field sewage deironing is disinfected and is joined in marriage fluid reservoir |
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| Publication number | Publication date |
|---|---|
| CN105439275B (en) | 2018-06-01 |
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