CN108928951A - Oil drilling sewage treatment process - Google Patents
Oil drilling sewage treatment process Download PDFInfo
- Publication number
- CN108928951A CN108928951A CN201710383454.5A CN201710383454A CN108928951A CN 108928951 A CN108928951 A CN 108928951A CN 201710383454 A CN201710383454 A CN 201710383454A CN 108928951 A CN108928951 A CN 108928951A
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- CN
- China
- Prior art keywords
- sludge
- sewage
- phase separator
- treatment process
- added
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 42
- 238000005553 drilling Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000010802 sludge Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- 238000004062 sedimentation Methods 0.000 claims description 17
- 239000006228 supernatant Substances 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 8
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 6
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 239000000395 magnesium oxide Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- 239000011790 ferrous sulphate Substances 0.000 claims description 3
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 3
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 3
- 239000004584 polyacrylic acid Substances 0.000 claims description 3
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 2
- 239000011575 calcium Substances 0.000 claims 2
- 229910052791 calcium Inorganic materials 0.000 claims 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims 1
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 23
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of oil drilling sewage treatment process, and treatment process is simple, and treatment effeciency is high, it can be achieved that sufficiently handled harmful substance in sewage, and to the solid particle progress separating treatment in sewage, the requirement for water can reach direct emission that treated；The sludge of separating treatment can be further processed in the present invention, the oil in sludge is carried out to be sufficiently separated recycling, and be carried out dehydrating sludge, facilitate the transport of sludge and be further processed.
Description
Technical field
The present invention relates to technical field of sewage, in particular to a kind of oil drilling sewage treatment process.
Background technique
Oil drilling sewage is mainly by oil field extracted water, drilling waste water, such as drilling fluid, fracturing fluid, flushing fluid and other classes
The oily wastewater of type is constituted.Oil field extracted water is isolated after being dehydrated with the wet crude (Produced Liquid) of oil producing operation extraction
The water come, also referred to as " crude oil abjection water ", it is quantity and all maximum one kind of negative effect in oilfield sewage, therefore, and
The main object of disposing polluted water in oil.Oil field extracted water ingredient is complicated, not only Different Strata, different oil production methods oil field
The property of recovered water is different, and the ingredient of the sewage in the same water treatment station different time is also different.Existing sewage treatment process
It is often difficult to effectively handle sewage, and complex treatment process, processing cost are higher.
Summary of the invention
It is an object of the invention to solve above-mentioned technical problem present in existing oil drilling sewage treatment process, provide
A kind of oil drilling sewage treatment process, process flow is simple, treatment effeciency is high, and treated water energy direct emission, sludge side
Just transport processing.
In order to solve the above technical problems, including the following steps present invention employs a kind of oil drilling sewage treatment process：
1) sewage that oil drilling generates is pumped into and is managed in pond everywhere, inorganic agent is added in processing pond, inorganic agent is to dirt
Water is handled, and the viscosity of sewage is reduced；
2) sewage that viscosity reduces is sent into reaction tank, flocculant is added in reaction tank, is formed in sewage cotton-shaped
Object；
3) sewage in reaction tank is pumped into three phase separator and is handled, through three phase separator treated supernatant
It is discharged from the outlet pipe in three phase separator；The solid particle separated in three phase separator is sent to dirt through conveying mechanism
In mud sump；
4) supernatant being discharged in three phase separator is drained into sedimentation basin, flocculant is added in sedimentation basin, precipitated
Supernatant in pond enters subsequent processing, and the solid particle and floccule in sedimentation basin are again fed to the three-phase separate in step 3)
From being handled in device；
5) supernatant in sedimentation basin is discharged into filter and is filtered processing, discharged after detection is qualified；
6) sludge in sludge-tank is pumped into and is managed in pond everywhere, release agent is added in sludge-tank, using blender to dirt
Mud is sufficiently stirred, and is separated oil and water in sludge from sludge, is recycled to the oil and water isolated；
7) sludge in processing pond is pumped into belt filter press and is carried out dehydrating.
In above-mentioned technical proposal, it is preferable that the inorganic agent uses or mixtures thereof calcium hypochlorite, hydrogen peroxide.
In above-mentioned technical proposal, it is preferable that the flocculant using calcium carbonate, calcium sulfate, ferrous sulfate, diatomite or its
Mixture.
In above-mentioned technical proposal, it is preferable that the preparation method of the release agent is：It will 5-15 by weight parts of oxidation
Aluminium, 5-15 parts of silica, 5-10 parts of magnesia, 20-80 parts of iron oxide are uniformly mixed, said mixture are added to
Polyacrylic acid, Sodium Polyacrylate aqueous solution in, stir evenly.
Treatment process of the present invention is simple, and treatment effeciency is high, it can be achieved that sufficiently handled harmful substance in sewage, and right
Solid particle in sewage carries out separating treatment, the requirement for water can reach direct emission that treated；
The sludge of separating treatment is further processed in the present invention, and the oil in sludge is carried out to be sufficiently separated recycling benefit
With, and sludge is carried out dehydrating, the transport of sludge is facilitated and is further processed.
Specific embodiment
The present invention is further illustrated combined with specific embodiments below.
Embodiment 1
1) sewage that oil drilling generates is pumped into and is managed in pond everywhere, inorganic agent is added in processing pond, inorganic agent is to dirt
Water is handled, and reduces the viscosity of sewage to 1.0mPa.s；Inorganic agent uses the mixture of calcium hypochlorite and hydrogen peroxide；
2) sewage that viscosity reduces is sent into reaction tank, flocculant is added in reaction tank, is formed in sewage cotton-shaped
Object；Flocculant is using calcium carbonate, the mixture of ferrous sulfate and diatomite；
3) sewage in reaction tank is pumped into three phase separator and is handled, be down to solid suspended particles after separation
60mg/L is hereinafter, treated that supernatant is discharged from the outlet pipe in three phase separator through three phase separator；Three phase separator
In the solid particle separated be sent in sludge-tank through conveying mechanism；
4) supernatant being discharged in three phase separator is drained into sedimentation basin, flocculant is added in sedimentation basin, precipitated
Supernatant in pond enters subsequent processing, and the solid particle and floccule in sedimentation basin are again fed to the three-phase separate in step 3)
From being handled in device；
5) supernatant in sedimentation basin is discharged into filter and is filtered processing, discharged after detection is qualified；
6) sludge in sludge-tank is pumped into and is managed in pond everywhere, release agent is added in sludge-tank, using blender to dirt
Mud is sufficiently stirred, and is separated oil and water in sludge from sludge, is recycled to the oil and water isolated；Separation
The preparation method of agent is：By 15 parts of aluminium oxide by weight, 10 parts of silica, 10 parts of magnesia, 50 parts of oxidation
Iron is uniformly mixed, and said mixture is added in the aqueous solution of Sodium Polyacrylate, is stirred evenly；
7) sludge in processing pond is pumped into belt filter press and is carried out dehydrating.
Embodiment 2
1) sewage that oil drilling generates is pumped into and is managed in pond everywhere, inorganic agent is added in processing pond, inorganic agent is to dirt
Water is handled, and reduces the viscosity of sewage to 1.0mPa.s；Inorganic agent uses the mixture of calcium hypochlorite and hydrogen peroxide；
2) sewage that viscosity reduces is sent into reaction tank, flocculant is added in reaction tank, is formed in sewage cotton-shaped
Object；Flocculant uses the mixture of calcium sulfate and diatomite；
3) sewage in reaction tank is pumped into three phase separator and is handled, be down to solid suspended particles after separation
60mg/L is hereinafter, treated that supernatant is discharged from the outlet pipe in three phase separator through three phase separator；Three phase separator
In the solid particle separated be sent in sludge-tank through conveying mechanism；
4) supernatant being discharged in three phase separator is drained into sedimentation basin, flocculant is added in sedimentation basin, precipitated
Supernatant in pond enters subsequent processing, and the solid particle and floccule in sedimentation basin are again fed to the three-phase separate in step 3)
From being handled in device；
5) supernatant in sedimentation basin is discharged into filter and is filtered processing, discharged after detection is qualified；
6) sludge in sludge-tank is pumped into and is managed in pond everywhere, release agent is added in sludge-tank, using blender to dirt
Mud is sufficiently stirred, and is separated oil and water in sludge from sludge, is recycled to the oil and water isolated；Separation
The preparation method of agent is：By 15 parts of aluminium oxide by weight, 10 parts of silica, 5 parts of magnesia, 60 parts of iron oxide
It is uniformly mixed, said mixture is added in polyacrylic acid aqueous solution, is stirred evenly；
7) sludge in processing pond is pumped into belt filter press and is carried out dehydrating.
Specification of the invention be considered as it is illustrative and not restrictive, on the basis of the present invention, art technology
For personnel according to disclosed technology contents, some replace can be made to some of technical characteristics by not needing creative labor
It changes and deforms, be within the scope of the invention.
Claims (4)
1. oil drilling sewage treatment process, which is characterized in that include the following steps：
1) sewage that oil drilling generates is pumped into and is managed in pond everywhere, be added inorganic agent in processing pond, inorganic agent to sewage into
Row processing, reduces the viscosity of sewage；
2) sewage that viscosity reduces is sent into reaction tank, flocculant is added in reaction tank, forms floccule in sewage；
3) sewage in reaction tank is pumped into three phase separator and is handled, through three phase separator treated supernatant from three
It is discharged in outlet pipe in phase separator；The solid particle separated in three phase separator is sent to sludge-tank through conveying mechanism
In；
4) supernatant being discharged in three phase separator is drained into sedimentation basin, is added flocculant in sedimentation basin, in sedimentation basin
Supernatant enter subsequent processing, the solid particle and floccule in sedimentation basin are again fed to the three phase separator in step 3)
In handled；
5) supernatant in sedimentation basin is discharged into filter and is filtered processing, discharged after detection is qualified；
6) by the sludge in sludge-tank be pumped into everywhere manage pond in, release agent is added in sludge-tank, using blender to sludge into
Row is sufficiently stirred, and separates oil and water in sludge from sludge, recycles to the oil and water isolated；
7) sludge in processing pond is pumped into belt filter press and is carried out dehydrating.
2. oil drilling sewage treatment process according to claim 1, it is characterised in that：The inorganic agent uses hypochlorous acid
Or mixtures thereof calcium, hydrogen peroxide.
3. oil drilling sewage treatment process according to claim 1, it is characterised in that：The flocculant uses carbonic acid
Or mixtures thereof calcium, calcium sulfate, ferrous sulfate, diatomite.
4. oil drilling sewage treatment process according to claim 1, it is characterised in that：The preparation method of the release agent
For：By 5-15 by weight parts of aluminium oxide, 5-15 parts of silica, 5-10 parts of magnesia, 20-80 parts of iron oxide is mixed
It closes uniformly, said mixture is added in the aqueous solution of polyacrylic acid, Sodium Polyacrylate, is stirred evenly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710383454.5A CN108928951A (en) | 2017-05-26 | 2017-05-26 | Oil drilling sewage treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710383454.5A CN108928951A (en) | 2017-05-26 | 2017-05-26 | Oil drilling sewage treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108928951A true CN108928951A (en) | 2018-12-04 |
Family
ID=64451171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710383454.5A Withdrawn CN108928951A (en) | 2017-05-26 | 2017-05-26 | Oil drilling sewage treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108928951A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624406A (en) * | 2020-12-17 | 2021-04-09 | 华东理工大学 | Deep purification method and device for drilling sewage |
-
2017
- 2017-05-26 CN CN201710383454.5A patent/CN108928951A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624406A (en) * | 2020-12-17 | 2021-04-09 | 华东理工大学 | Deep purification method and device for drilling sewage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181204 |
|
| WW01 | Invention patent application withdrawn after publication |