CN103112967A - Oilfield sewage cyclone disturbance treatment method and device - Google Patents
Oilfield sewage cyclone disturbance treatment method and device Download PDFInfo
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- CN103112967A CN103112967A CN2013100633885A CN201310063388A CN103112967A CN 103112967 A CN103112967 A CN 103112967A CN 2013100633885 A CN2013100633885 A CN 2013100633885A CN 201310063388 A CN201310063388 A CN 201310063388A CN 103112967 A CN103112967 A CN 103112967A
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- storage tank
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- 239000010865 sewage Substances 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 54
- -1 iron ion Chemical class 0.000 claims abstract description 54
- 238000005189 flocculation Methods 0.000 claims abstract description 52
- 229910052742 iron Inorganic materials 0.000 claims abstract description 51
- 230000016615 flocculation Effects 0.000 claims abstract description 49
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 48
- 238000003860 storage Methods 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 27
- 238000005260 corrosion Methods 0.000 claims abstract description 22
- 230000007797 corrosion Effects 0.000 claims abstract description 19
- 238000000746 purification Methods 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 230000005484 gravity Effects 0.000 claims abstract description 4
- 238000004062 sedimentation Methods 0.000 claims description 24
- 230000002401 inhibitory effect Effects 0.000 claims description 21
- 239000002002 slurry Substances 0.000 claims description 21
- 239000003814 drug Substances 0.000 claims description 17
- 239000010797 grey water Substances 0.000 claims description 15
- 239000002699 waste material Substances 0.000 claims description 7
- 229920006351 engineering plastic Polymers 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 5
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 claims description 3
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical group [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 claims description 3
- 238000005660 chlorination reaction Methods 0.000 claims description 3
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 claims description 3
- JRBPAEWTRLWTQC-UHFFFAOYSA-O dodecylazanium Chemical compound CCCCCCCCCCCC[NH3+] JRBPAEWTRLWTQC-UHFFFAOYSA-O 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000009972 noncorrosive effect Effects 0.000 claims description 3
- 229920002401 polyacrylamide Polymers 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- HBRNMIYLJIXXEE-UHFFFAOYSA-N dodecylazanium;acetate Chemical compound CC(O)=O.CCCCCCCCCCCCN HBRNMIYLJIXXEE-UHFFFAOYSA-N 0.000 claims description 2
- 239000011152 fibreglass Substances 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 5
- 150000001768 cations Chemical class 0.000 abstract description 2
- 239000003921 oil Substances 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000008394 flocculating agent Substances 0.000 abstract 1
- 239000002455 scale inhibitor Substances 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 2
- 239000013543 active substance Substances 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000005446 dissolved organic matter Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to an oilfield sewage cyclone disturbance treatment method and device. The device comprises a settling and impurity removing tank, a flocculation reaction tank, a scale settling tank, a stable iron ion reaction tank, agent storage tanks, four stages of booster pumps, agent dosing pumps and connecting pipelines. The oilfield sewage continuously passes through the four stages of purification tanks, is sprayed into the purification tanks in a cyclone state and is divided into sump oil, sewage and sludge under the effects of inertial centrifugal force and gravity. The treatment process is as follows: the oilfield sewage enters the settling and impurity removing tank to be separated, a flocculating agent is added to the separated sewage to carry out flocculation separation, an antiscaling agent is added to the separated sewage to remove scale cations, a stable iron ion agent is added to the separated sewage to remove iron ions and a corrosion and scale inhibitor is added to the separated sewage and then the separated sewage is sent to a water injection tank. The method and the device have the beneficial effects that through four stages of continuous cyclone disturbance treatment, the reaction is full and the separation effect is good; and the content of suspended matters in the treated sewage is not more than 3.0mg/L, the oil content is not more than 10.0mg/L and the iron content is not more than 0.5mg/L, so the treated sewage reaches the water quality standard of oilfield flooding.
Description
Technical field
The invention belongs to the oily water treatment technical field.Relate to a kind of oil field sullage rotational flow disturbance treatment method and device.
Background technology
Oilfield sewage is compared with other trade effluent, contains different solids, insoluble liquid and the pollutents such as dissolved organic matter, inorganics, as silt, slag, oil slick, scaling cations (Ca
2+, Mg
2+Deng) iron ion (--Fe
2+And Fe
3+), tensio-active agent etc.Not only polluted surface water of nature is arrived in these pollutant emissions, causes environmental degradation, and the industrial and agricultural production around returning and people's life bring harm.For eliminating above-mentioned hazard factor, must process oilfield sewage, make pollutent be reduced to the degree that environment can be accepted.
The Sewage treatment systems in prior art oil field is comparatively huge, and cost of sewage disposal is high, and sewage after treatment still contains a large amount of objectionable constituent, very easily pollutes the stratum after re-injection, stops up the stratum flow gap, causes later stage water filling resistance to increase, even can't water filling.The intractability that the circulation gap is stopped up is large, and processing costs is expensive.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention provides a kind of oil field sullage rotational flow disturbance treatment method, utilize the method for level Four purification pot eddy flow perturbation technique and interpolation medicament to remove oil slick, silt and objectionable impurities in oilfield sewage, improve the disposing polluted water in oil effect.Another object of the present invention is to provide a kind of oil field sullage rotational flow disturbance treatment device of realizing aforesaid method.
Oil field sullage rotational flow disturbance treatment method of the present invention is: oilfield sewage sprays into purification pot with the eddy flow state, under centrifugal inertial force and action of gravity, is divided into sump oil, sewage and mud three-phase.Oilfield sewage is through level Four purification pot eddy flow disturbance treatment, and treating processes is: oilfield sewage enters the sedimentation decleaning tank to be separated, and waste oil recovery is discharged mud.Add flocculation agent to enter the flocculation reaction tank after the sewage pressurization of telling and carry out flocculation separation, waste oil recovery is discharged mud.Add scale remover to enter dirty slurry tank except the de-sludging positively charged ion after the sewage pressurization of telling, discharge mud.Add after the pressurization of the sewage told and stablize the iron ion medicament and enter and stablize the iron ion retort and remove iron ion, discharge mud, the sewage of telling adds corrosion inhibiting and descaling agent to deliver to water injection tank after pressurizeing.
Scale remover is Na
2CO
3, flocculation agent is polyacrylamide or polymeric aluminum, and stablizing the iron ion medicament is disodium EDTA, and inhibiter is chlorination dodecyl ammonium or Dodecylammonium acetate.
Oil field sullage rotational flow disturbance treatment device of the present invention, comprise water injection tank, slop oil tank and pollution discharge pond, device is provided with sedimentation decleaning tank, flocculation reaction tank, dirty slurry tank, stablizes the iron ion retort, flocculation agent storage tank, scale remover storage tank, stablize iron ion medicament storage tank and corrosion inhibiting and descaling agent storage tank.Sedimentation decleaning tank, flocculation reaction tank, dirty slurry tank and stable iron ion retort are provided with sewage inlet, water out and sewage draining exit, and sewage draining exit is communicated with pollution discharge pond by pipeline.Sedimentation decleaning tank and flocculation reaction tank are provided with the sump oil outlet, and the sump oil outlet is connected to slop oil tank by receiving oil pump.The oilfield sewage pipeline is connected to the sewage inlet of sedimentation decleaning tank, and the water out of sedimentation decleaning tank is connected to the sewage inlet of flocculation reaction tank by the one-level force (forcing) pump, and the flocculation agent storage tank is connected to one-level pressurization pump outlet by the flocculation agent dosing pump.The water outlet of flocculation reaction tank is connected to the sewage inlet of dirty slurry tank by the two-stage pressurizing pump, the scale remover storage tank is connected to the two-stage pressurizing pump outlet by the scale remover dosing pump.The water out of dirt slurry tank is connected to by three grades of force (forcing) pumps the sewage inlet of stablizing the iron ion retort, stablizes iron ion medicament storage tank and is connected to three grades of pressurization pump outlet by stablizing the iron ion dosing pump.Stablize the iron ion retort and be connected to water injection tank by the level Four force (forcing) pump, the corrosion inhibiting and descaling agent storage tank is connected to level Four pressurization pump outlet by the corrosion inhibiting and descaling agent dosing pump.
Sewage inlet is the structure that the sewage tangential way enters purification pot.Sedimentation decleaning tank, flocculation reaction tank, dirty slurry tank, stablize iron ion retort, flocculation agent storage tank, scale remover storage tank, the material of stablizing iron ion medicament storage tank, corrosion inhibiting and descaling agent storage tank and each connecting pipeline is stainless steel, engineering plastics or glass reinforced plastic, engineering plastics are polyvinyl chloride, polyethylene or polypropylene.One-level force (forcing) pump, two-stage pressurizing pump, three grades of force (forcing) pumps, level Four force (forcing) pump, flocculation agent dosing pump, scale remover dosing pumps, stablize the iron ion dosing pump and-the corrosion inhibiting and descaling agent dosing pump is noncorrosive pump.
The present invention adopts the continuous eddy flow disturbance purification pot of level Four to separate under centrifugal force and action of gravitation, and sufficient reacting is effectively removed oil slick in oilfield sewage, silt and objectionable impurities, has improved the disposing polluted water in oil effect.Add flocculation agent, scale remover, stablize iron ion medicament and corrosion inhibiting and descaling agent, good separating effect, realize oil removing, the removal of impurity, descaling and antiscaling, deironing and the purpose of increasing water quality, the water quality after processing reaches suspension content≤3.0mg/L in sewage, oleaginousness≤10.0 mg/L, iron-holder≤0.5 mg/L has reached the oil-field flooding water quality standard.Waste disposal plant flow process of the present invention is simple, easy to operate, is applicable to the purifying treatment of oilfield sewage, also is applicable to the processing of petroleum chemical enterprise's oily(waste)water.
Description of drawings
Fig. 1 is the schematic flow sheet of oil field sullage rotational flow disturbance treatment device of the present invention;
Fig. 2 is the schematic diagram of purification pot sewage inlet.
Wherein:
1-receipts oil pump, 2-sedimentation decleaning tank, 3-one-level force (forcing) pump, 4-flocculation agent storage tank, 5-flocculation agent dosing pump, 6-flocculation reaction tank, 7-two-stage pressurizing pump, 8-scale remover storage tank, 9-scale remover dosing pump, 10-dirty slurry tank, 11-three grades of force (forcing) pumps, 12-stablize iron ion medicament storage tank, 13-stablize the iron ion dosing pump, 14-stablize the iron ion retort, 15-level Four force (forcing) pump, 16-corrosion inhibiting and descaling agent storage tank, 17-corrosion inhibiting and descaling agent dosing pump, 18-wash water valve, 19-sewage inlet, 20-water out, the outlet of 21-sump oil, 22-sewage draining exit.
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
Oil field sullage rotational flow disturbance treatment device of the present invention, as shown in Figure 1, comprise water injection tank, slop oil tank and pollution discharge pond, sedimentation decleaning tank 2, flocculation reaction tank 6, dirty slurry tank 10, stablize iron ion retort 14, flocculation agent storage tank 4, scale remover storage tank 8, stablize iron ion medicament storage tank 12 and corrosion inhibiting and descaling agent storage tank 16.Sedimentation decleaning tank, flocculation reaction tank, dirty slurry tank and stable iron ion retort are respectively equipped with sewage inlet 19, water out 20 and sewage draining exit 22.As shown in Figure 2, sewage inlet 19 enters the structure (take dirty slurry tank as example) of purification pot for the sewage tangential way, make the sewage of ejection form eddy flow at purification pot.Sewage inlet is positioned at the middle part of each purification pot, and water out is positioned at the middle and upper part of each purification pot.Sewage draining exit is provided with wash water valve 18, and sewage draining exit is communicated with pollution discharge pond by pipeline.Sedimentation decleaning tank and flocculation reaction tank are respectively equipped with sump oil outlet 21, and the sump oil outlet is positioned at the top of tank, and the sump oil outlet is connected to slop oil tank by receiving oil pump 1.The oilfield sewage pipeline is connected to the sewage inlet of sedimentation decleaning tank, and the water out of sedimentation decleaning tank is connected to the sewage inlet of flocculation reaction tank by one-level force (forcing) pump 3, and flocculation agent storage tank 4 is connected to one-level pressurization pump outlet by flocculation agent dosing pump 5.The water outlet of flocculation reaction tank is connected to the sewage inlet of dirty slurry tank 10 by two-stage pressurizing pump 7, scale remover storage tank 8 is connected to the two-stage pressurizing pump outlet by scale remover dosing pump 9.The water out of dirt slurry tank 10 is connected to by three grades of force (forcing) pumps 11 sewage inlet of stablizing iron ion retort 14, stablizes iron ion medicament storage tank 12 and is connected to three grades of pressurization pump outlet by stablizing iron ion dosing pump 13.Stablize the iron ion retort and be connected to water injection tank by level Four force (forcing) pump 15, corrosion inhibiting and descaling agent storage tank 16 is connected to level Four pressurization pump outlet by corrosion inhibiting and descaling agent dosing pump 17.Sedimentation decleaning tank 2, flocculation reaction tank 6, dirty slurry tank 10, stablize iron ion retort 14, flocculation agent storage tank 4, scale remover storage tank 8, the material of stablizing iron ion medicament storage tank 12, corrosion inhibiting and descaling agent storage tank 16 and each connecting pipeline is the polyvinyl chloride engineering plastics.Force (forcing) pumps at different levels and each dosing pump are noncorrosive pump.
The process of oil field sullage rotational flow disturbance treatment of the present invention is, oilfield sewage by the road with sewage inlet 19 with eddy flow state sedimentation decleaning tank 2, under centrifugal inertial force and action of gravity, be divided into sump oil, sewage and mud three-phase, to slop oil tank, the mud of bottom arrives pollution discharge pond through sewage draining exit 22, wash water valve 18 and connecting pipeline to the oil phase on top through sump oil outlet 21, oil well pump 1.The sewage that sedimentation decleaning tank 2 is told enters flocculation reaction tank 6 after the pressurization of one-level force (forcing) pump, carry out flocculation separation, and the flocculation agent polyacrylamide adds one-level dosing pump outlet by flocculation agent dosing pump 5, and add-on is 2～2.5mg/L.The sepn process of flocculation reaction tank is identical with the sedimentation decleaning tank, and waste oil recovery is discharged mud.The sewage that the flocculation reaction tank is told enters dirty slurry tank 10 and removes Ca after 7 pressurizations of secondary dosing pump
2+, Mg
2+Etc. dirty positively charged ion, scale remover Na
2CO
3Join the two-stage pressurizing pump outlet through scale remover dosing pump 9, add-on is 30mg/L.Dirt slurry tank 10 tell throw out through sewage draining exit 22 to the discharging pond, enter after the pressurization of the sewage told and stablize iron ion retort 14 and remove iron ion, stablize iron ion medicament disodium EDTA and join three grades of pressurization pump outlet through stablizing iron ion dosing pump 13, add-on is 90mg/L.Stablize the iron ion retort tell throw out through sewage draining exit 22 to the discharging pond, the sewage of telling is delivered to water injection tank after pressurizeing by level Four force (forcing) pump 15, corrosion inhibiting and descaling agent chlorination dodecyl ammonium joins level Four pressurization pump outlet by corrosion inhibiting and descaling agent dosing pump 17, and add-on is 90mg/L.
Claims (6)
1. oil field sullage rotational flow disturbance treatment method, oilfield sewage sprays into purification pot with the eddy flow state, under centrifugal inertial force and action of gravity, be divided into sump oil, sewage and mud three-phase, it is characterized in that: described oilfield sewage is through level Four purification pot eddy flow disturbance treatment, treating processes is: oilfield sewage enters sedimentation decleaning tank (2) to be separated, and waste oil recovery is discharged mud; Add flocculation agent to enter flocculation reaction tank (6) after the sewage pressurization of telling and carry out flocculation separation, waste oil recovery is discharged mud; Add scale remover to enter dirty slurry tank (10) except the de-sludging positively charged ion after the sewage pressurization of telling, discharge mud; Add after the pressurization of the sewage told and stablize the iron ion medicament and enter and stablize iron ion retort (14) and remove iron ion, discharge mud, the sewage of telling adds corrosion inhibiting and descaling agent to deliver to water injection tank after pressurizeing.
2. oil field sullage rotational flow disturbance treatment method according to claim 1, it is characterized in that: described scale remover is Na
2CO
3, described flocculation agent is polyacrylamide or polymeric aluminum, and described stable iron ion medicament is disodium EDTA, and described inhibiter is chlorination dodecyl ammonium or Dodecylammonium acetate.
3. oil field sullage rotational flow disturbance treatment device, comprise water injection tank, slop oil tank and pollution discharge pond, it is characterized in that: described device is provided with sedimentation decleaning tank (2), flocculation reaction tank (6), dirty slurry tank (10), stablizes iron ion retort (14), flocculation agent storage tank (4), scale remover storage tank (8), stablize iron ion medicament storage tank (12) and corrosion inhibiting and descaling agent storage tank (16); Described sedimentation decleaning tank, flocculation reaction tank, dirty slurry tank and stable iron ion retort are provided with sewage inlet (19), water out (20) and sewage draining exit (22), and described sewage draining exit is communicated with pollution discharge pond by pipeline; Described sedimentation decleaning tank and flocculation reaction tank are provided with sump oil outlet (21), and described sump oil outlet is connected to slop oil tank by receiving oil pump (1); The oilfield sewage pipeline is connected to the sewage inlet of sedimentation decleaning tank, the water out of sedimentation decleaning tank is connected to the sewage inlet of flocculation reaction tank by one-level force (forcing) pump (3), described flocculation agent storage tank (4) is connected to one-level pressurization pump outlet by flocculation agent dosing pump (5); The water outlet of flocculation reaction tank is connected to the sewage inlet of dirty slurry tank (10) by two-stage pressurizing pump (7), described scale remover storage tank (8) is connected to the two-stage pressurizing pump outlet by scale remover dosing pump (9); The water out of dirt slurry tank (10) is connected to by three grades of force (forcing) pumps (11) sewage inlet of stablizing iron ion retort (14), stablizes iron ion medicament storage tank (12) and is connected to three grades of pressurization pump outlet by stablizing iron ion dosing pump (13); Stablize the iron ion retort and be connected to water injection tank by level Four force (forcing) pump (15), described corrosion inhibiting and descaling agent storage tank (16) is connected to level Four pressurization pump outlet by corrosion inhibiting and descaling agent dosing pump (17).
4. oil field sullage rotational flow disturbance treatment device according to claim 3, it is characterized in that: described sewage inlet (19) enters the structure of purification pot for the sewage tangential way.
5. oil field sullage rotational flow disturbance treatment device according to claim 3, it is characterized in that: described sedimentation decleaning tank (2), flocculation reaction tank (6), dirty slurry tank (10), stablize iron ion retort (14), flocculation agent storage tank (4), scale remover storage tank (8), the material of stablizing iron ion medicament storage tank (12), corrosion inhibiting and descaling agent storage tank (16) and each connecting pipeline is stainless steel, engineering plastics or glass reinforced plastic, described engineering plastics are polyvinyl chloride, polyethylene or polypropylene.
6. oil field sullage rotational flow disturbance treatment device according to claim 3 is characterized in that: described one-level force (forcing) pump (3), two-stage pressurizing pump (7), three grades of force (forcing) pumps (11), level Four force (forcing) pump (15), flocculation agent dosing pump (5), scale remover dosing pump (9), stablize iron ion dosing pump (13) and-corrosion inhibiting and descaling agent dosing pump (17) is noncorrosive pump.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310063388.5A CN103112967B (en) | 2013-02-28 | 2013-02-28 | Oilfield sewage cyclone disturbance treatment method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310063388.5A CN103112967B (en) | 2013-02-28 | 2013-02-28 | Oilfield sewage cyclone disturbance treatment method and device |
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| Publication Number | Publication Date |
|---|---|
| CN103112967A true CN103112967A (en) | 2013-05-22 |
| CN103112967B CN103112967B (en) | 2014-07-16 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104370378A (en) * | 2013-08-15 | 2015-02-25 | 中国石油天然气股份有限公司 | Method and device for fixed-point calcium scale removal of oilfield injection water |
| CN104773880A (en) * | 2015-05-05 | 2015-07-15 | 南充西南石油大学设计研究院有限责任公司 | Sewage treatment technology and equipment for well drilling |
| CN106621484A (en) * | 2015-10-30 | 2017-05-10 | 新疆石油工程设计有限公司 | Sedimentation oil removal tank, produced water treatment system and treatment method |
| CN108298659A (en) * | 2018-03-27 | 2018-07-20 | 西安长庆科技工程有限责任公司 | The processing system and technique of oilfield filter backwash sewage and sludge condensation supernatant |
| CN108412757A (en) * | 2018-04-19 | 2018-08-17 | 大庆华帝石油科技有限公司 | Double helix sump oil water recovery device |
| CN110697913A (en) * | 2018-07-09 | 2020-01-17 | 中国石油天然气股份有限公司 | Oil field sewage treatment device |
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| CN107352691A (en) * | 2017-08-24 | 2017-11-17 | 安徽省鸿鑫生物科技有限公司 | A kind of high calcium-containing oilfield sewage sofening treatment system and processing method |
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| CN106621484A (en) * | 2015-10-30 | 2017-05-10 | 新疆石油工程设计有限公司 | Sedimentation oil removal tank, produced water treatment system and treatment method |
| CN108298659A (en) * | 2018-03-27 | 2018-07-20 | 西安长庆科技工程有限责任公司 | The processing system and technique of oilfield filter backwash sewage and sludge condensation supernatant |
| CN108412757A (en) * | 2018-04-19 | 2018-08-17 | 大庆华帝石油科技有限公司 | Double helix sump oil water recovery device |
| CN108412757B (en) * | 2018-04-19 | 2024-03-22 | 大庆华帝石油科技有限公司 | Double-screw dirty oil water recovery device |
| CN110697913A (en) * | 2018-07-09 | 2020-01-17 | 中国石油天然气股份有限公司 | Oil field sewage treatment device |
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