CN102115223B - Method for treating micro-nano bubbles of oil extraction sewage in oil field - Google Patents
Method for treating micro-nano bubbles of oil extraction sewage in oil field Download PDFInfo
- Publication number
- CN102115223B CN102115223B CN201110001609A CN201110001609A CN102115223B CN 102115223 B CN102115223 B CN 102115223B CN 201110001609 A CN201110001609 A CN 201110001609A CN 201110001609 A CN201110001609 A CN 201110001609A CN 102115223 B CN102115223 B CN 102115223B
- Authority
- CN
- China
- Prior art keywords
- sewage
- micro
- oil
- nano bubble
- oil field
- 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.)
- Expired - Fee Related
Links
- 239000002101 nanobubble Substances 0.000 title claims abstract description 48
- 239000010865 sewage Substances 0.000 title abstract description 53
- 238000000034 method Methods 0.000 title abstract description 13
- 238000000605 extraction Methods 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000009423 ventilation Methods 0.000 claims abstract description 5
- 239000000725 suspension Substances 0.000 claims description 16
- 229920000642 polymer Polymers 0.000 abstract description 26
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000013505 freshwater Substances 0.000 abstract description 5
- 229920002401 polyacrylamide Polymers 0.000 abstract description 4
- 239000013043 chemical agent Substances 0.000 abstract description 2
- 230000033558 biomineral tissue development Effects 0.000 abstract 2
- 150000002500 ions Chemical class 0.000 description 9
- 238000002360 preparation method Methods 0.000 description 8
- 238000011084 recovery Methods 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 239000009671 shengli Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000892 gravimetry Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004457 water analysis Methods 0.000 description 1
Images
Abstract
The invention discloses a method for treating micro-nano bubbles of oil extraction sewage in an oil field. The method comprises the steps of: feeding micro-nano bubbles generated by a micro-nano bubbles generator into the place which is distanced from the bottom of a container or a pond at 2-60cm under the oil extraction sewage liquid surface in the oil field; and taking the mineralization range of the oil extraction sewage in the oil field as 5000-60000mg.L-1, the oil content range as 10-200mg.L-1, the suspended matter content range as 1-100mg.L-1, and the ventilation rate as 0.5-4L gas/(L water. hour) to treat for 0.5-10h. The sewage mineralization, the oil content and the suspended matter content treated by the method are obviously reduced, and the viscosity ratio of the polymer (some part of hydrolyzed polyacrylamide) solution prepared by the treated sewage is obviously improved compared with the fore-treatment. The method is simple in technology, is low in cost, does not need to add the other chemical agents, and can avoid the secondary pollution; and the method can be used for preparing a polymer flooding system on the oil field spot, eliminating the environment pollution caused by the oil field sewage, and saving the fresh water resource.
Description
Technical field
The present invention relates to a kind of treatment process of oilfield produced water, relate in particular to a kind of micro-nano bubble facture of oilfield produced water, belong to WWT and oil-field development technical field.
Background technology
In oil extraction process, all produce a large amount of sewage, directly discharging is prone to cause serious environmental to pollute, so the harmless treatment of oilfield sewage or recycling have become a problem demanding prompt solution.On the other hand, in the middle and later periods of oil-field development, (partially hydrolyzed polyacrylamide PHPA) is strengthened technology of reservoir sweep and is improved RF extensively to adopt polymkeric substance.The main at present clear water prepared polymer flooding system (abbreviation is joined and gathered) that adopts has consumed a large amount of Freshwater resources.Oilfield produced water has high salinity, floorboard with high oil content and high suspended matter concentration characteristics, and it is not good because of the low oil displacement efficiency of viscosity directly to be used for the prepared polymer flooding system.
Micro-nano bubble is meant the bubble of diameter less than 50 μ m.For general bubble, micro-nano bubble lift velocity in water is slow, and lifetime is long, and the collision between bubble and breaking many takes place in the underwater.When micro-nano bubble breaks, can produce the OH radical, help the organism in the degradation of sewage, therefore be applied to the processing of organism sewage.The ion that exists in the oilfield sewage, suspended substance and join with the oil influence that emulsified state exists and to gather effect; Micro-nano bubble is used to handle oilfield sewage; Its effect is different from the processing of organism sewage; Mainly be breakdown of emulsion, assembled and impel reaction between ions, and then played the effect that reduces oil-contg, suspension content and salinity.Through retrieval, also do not see the report of the micro-nano bubble facture of oilfield produced water at present.
Summary of the invention
Mainly adopt the clear water preparation to present polymer flooding system; Consume a large amount of Freshwater resources, simultaneously, produce a large amount of sewage in the oil recovery process; Directly discharging causes the serious environmental pollution problems, the invention provides a kind of micro-nano bubble facture of oilfield produced water.
The micro-nano bubble facture of oilfield produced water according to the invention; It is characterized in that: the micro-nano bubble that the micro-nano bubble producer is produced feeds under the oilfield produced water liquid level apart from container bottom 2～60cm place; Wherein said bubble mean diameter is 537nm, oilfield produced water salinity scope 5000～60000mgL
-1, oil-contg scope 10～200mgL
-1, suspension content scope 1～100mgL
-1, handled 0.5～10 hour with the ventilation rate of 0.5～4 liter of gas/(premium on currency hour).
In the micro-nano bubble facture of above-mentioned oilfield produced water; Preferred embodiment be: the micro-nano bubble that the micro-nano bubble producer is produced fed under the oilfield produced water liquid level apart from container bottom 8-20cm place, with the ventilation rate processing of 1～2 liter of gas/(premium on currency hour) 2～6 hours.
The oilfield sewage that utilizes micro-nano bubble facture of the present invention to handle; Its salinity, oleaginousness and suspension content all obviously reduce; The polymer flooding system viscosity of preparation obviously improves than before handling; Therefore can replace clear water to be used for the prepared polymer flooding system, both can solve the problem of environmental pollution of sewage, save Freshwater resources again.
Above-mentioned polymer flooding system is the on-the-spot partially hydrolyzed polyacrylamide solution commonly used in oil field.
Advantage of the present invention is:
1, the micro-nano bubble method is handled oilfield sewage, and technology is simple, and cost is low;
2, the micro-nano bubble method is handled oilfield sewage, need not to add other chemical agent, avoids secondary pollution;
3, the micro-nano bubble method handle the oilfield sewage prepared polymer flooding system time, obviously improve before its viscosity ratio is handled, can replace clear water to be used for the prepared polymer flooding system at the scene, oil field, when eliminating the oilfield sewage environmental pollution, practice thrift Freshwater resources.
Description of drawings
Fig. 1 micro-nano bubble is handled the influence to the oilfield sewage ion content; Wherein: Fig. 1-1: be HCO
3 -Content, Fig. 1-2: be Ca
2+Content, Fig. 1-3: be Mg
2+Content.
Fig. 2 micro-nano bubble is handled the influence to the dirty waste water oleaginousness in oil field.
Fig. 3 micro-nano bubble is handled the influence to the polymer flooding system viscosity of being prepared.
Embodiment
The polymers soln of the following stated is partially hydrolyzed polyacrylamide (PHPA) solution, and concentration is 2000mgL
-1Adopt NDJ-1E type viscometer under room temperature (25 ℃) and rotating speed 60rpm, to measure viscosity.The micro-nano bubble producer is that Shanghai Zhongchen digital technology equipment Co., Ltd produces, and bubble mean diameter is 537nm, 6～12 liters/hour of gas production rate.Sewage quality respectively by the People's Republic of China's oil and gas industry standard " fld water analysis method " (SY/T5523-2000), " determination method for oil content spectrophotometry in the oilfield sewage " (SY/T0530-93) and (GB11901-89) assay determination of State Standard of the People's Republic of China's " gravimetry method of water quality suspended substance ".
Gather Shengli Oil Field Gu Dong oil recovery factory 9-1 match polymer station sewage, Analysis Results of Water Quality is seen table 1.
Get 6L 9-1 match polymer station sewage and add in the tank, open the micro-nano bubble producer, micro-nano bubble is fed under the sewage level apart from container bottom 12cm place, when bubble is full of tank, pick up counting.Air flow is 6 liters/hour.
The viscosity of the polymers soln of ion content, oleaginousness and the preparation of processing different time is seen Fig. 1,2 and 3 respectively, visible prolongation with the time of processing, and ion content, oleaginousness reduce, and the viscosity of the polymers soln of preparation raises.
Handle after 180 minutes salinity, oleaginousness, pH and the suspension content of sewage and see table 1.Salinity is from 11402mgL
-1Reduce to 10833mgL
-1Oil-contg is from 21.1mgL
-1Reduce to 10.2mgL
-1Suspension content is from 12mgL
-1Reduce to 6mgL
-1The pH value slightly raises.The viscosity of polymer solution made up by sewage is 8.1mPa.s before being untreated, and the viscosity of the sewage institute prepared polymer solution after micro-nano bubble is handled 180min is respectively 13.7mPa.s, and the tackify rate is 69%.
Gather Shengli Oil Field Gu Dong oil recovery factory and join ingress's sewage No. 2, Analysis Results of Water Quality is seen table 1.
Get No. 2,12L and join ingress's sewage and add in the tank, open the micro-nano bubble producer, micro-nano bubble is fed under the sewage level apart from container bottom 20cm place, when bubble is full of tank, pick up counting.Air flow is 6 liters/hour.
The viscosity of the polymers soln of ion content, oleaginousness and the preparation of processing different time is seen Fig. 1,2 and 3 respectively, visible prolongation with the time of processing, and ion content, oleaginousness reduce, and the viscosity of the polymers soln of preparation raises.
Handle after 180 minutes salinity, oleaginousness, pH and the suspension content of sewage and see table 1.Salinity is from 15254mgL
-1Reduce to 14619mgL
-1Oil-contg is from 18.8mgL
-1Reduce to 7.7mgL
-1Suspension content is from 22mgL
-1Reduce to 15mgL
-1The pH value slightly raises.The viscosity of polymer solution made up by sewage is 10.4mPa.s before being untreated, and the viscosity of the sewage institute prepared polymer solution after micro-nano bubble is handled 180min is respectively 15.7mPa.s, and the tackify rate is 51%.
Embodiment 3
Gather Shengli Oil Field Gu Dong oil recovery factory oxidation pond ingress sewage, Analysis Results of Water Quality is seen table 1.
Get 4L oxidation pond ingress sewage and add in the tank, open the micro-nano bubble producer, micro-nano bubble is fed under the sewage level apart from container bottom 8cm place, when bubble is full of tank, pick up counting.Air flow is 10 liters/hour.
The viscosity of the polymers soln of ion content, oleaginousness and the preparation of processing different time is seen Fig. 1,2 and 3 respectively, visible prolongation with the time of processing, and ion content, oleaginousness reduce, and the viscosity of the polymers soln of preparation raises.
Handle after 180 minutes salinity, oleaginousness, pH and the suspension content of sewage and see table 1.Salinity is from 20470mgL
-1Reduce to 18580mgL
-1Oil-contg is from 69.8mgL
-1Reduce to 10.3mgL
-1Suspension content is from 3.7mgL
-1Reduce to 2.33mgL
-1The pH value slightly raises.The viscosity of polymer solution made up by sewage is 4.7mPa.s before being untreated, and the viscosity of the sewage institute prepared polymer solution after micro-nano bubble is handled 180min is respectively 18.1mPa.s, and the tackify rate is 285%.
Analysis Results of Water Quality before and after table 1 oilfield produced water micro-nano bubble is handled
Gather Shengli Oil Field sewage, water quality detection: salinity 58670mgL
-1, oil-contg 180.8mgL
-1, suspension content 92mgL
-1
Get 12L Shengli Oil Field sewage; Add in the tank; Open the micro-nano bubble producer, micro-nano bubble is fed under the sewage level apart from container bottom 30cm place, when bubble is full of tank, pick up counting; Air flow is 6 liters/hour, handles the salinity, oleaginousness and the suspension content that detect sewage after 10 hours and is respectively 47523mgL
-1, 56.2mgL
-1And 10.1mgL
-1
Embodiment 5
Gather Shengli Oil Field sewage, water quality detection: salinity 5260mgL
-1, oil-contg 12.8mgL
-1, suspension content 1.5mgL
-1
Getting 3L Shengli Oil Field sewage adds in the tank; Open the micro-nano bubble producer; Micro-nano bubble is fed under the sewage level apart from container bottom 2cm place; When bubble is full of tank, pick up counting, air flow is 12 liters/hour, handles the salinity, oleaginousness and the suspension content that detect sewage after 7 hours and is respectively 4523mgL
-1, 4.3mgL
-1And 0.8mgL
-1
Embodiment 6
Gather Shengli Oil Field Gu Dong oil recovery factory sewage, water quality detection: salinity 55570mgL
-1, oil-contg 150.2mgL
-1, suspension content 64mgL
-1
Getting 10L Shengli Oil Field Gu Dong oil recovery factory sewage adds in the tank; The micro-nano bubble that the micro-nano bubble producer is produced feeds under the oilfield produced water liquid level apart from container bottom 25cm place; When bubble is full of tank, pick up counting, air flow is 12 liters/hour, handles 10 hours.
Detect salinity, oleaginousness and the suspension content of handling back sewage and be respectively 4013mgL
-1, 44.1mgL
-1And 7.8mgL
-1
Claims (2)
1. the micro-nano bubble facture of an oilfield produced water; It is characterized in that: the micro-nano bubble that the micro-nano bubble producer is produced feeds under the oilfield produced water liquid level apart from container bottom 2～60cm place; Wherein said bubble mean diameter is 537nm, oilfield produced water salinity scope 5000～60000mgL
-1, oil-contg scope 10～200mgL
-1, suspension content scope 1～100mgL
-1, handled 0.5～10 hour with the ventilation rate of 0.5～4 liter of gas/(premium on currency hour).
2. the micro-nano bubble facture of oilfield produced water as claimed in claim 1; It is characterized in that: the micro-nano bubble that the micro-nano bubble producer is produced fed under the oilfield produced water liquid level apart from container bottom 8～20cm place, with the ventilation rate processing of 1～2 liter of gas/(premium on currency hour) 2～6 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110001609A CN102115223B (en) | 2011-01-06 | 2011-01-06 | Method for treating micro-nano bubbles of oil extraction sewage in oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110001609A CN102115223B (en) | 2011-01-06 | 2011-01-06 | Method for treating micro-nano bubbles of oil extraction sewage in oil field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102115223A CN102115223A (en) | 2011-07-06 |
| CN102115223B true CN102115223B (en) | 2012-09-05 |
Family
ID=44214166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110001609A Expired - Fee Related CN102115223B (en) | 2011-01-06 | 2011-01-06 | Method for treating micro-nano bubbles of oil extraction sewage in oil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102115223B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140158631A1 (en) * | 2012-12-07 | 2014-06-12 | Advanced Water Recovery, Llc | Separation of neutrally buoyant materials from water |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2616526Y (en) * | 2003-05-15 | 2004-05-19 | 北京百恒达石油技术有限公司 | Oil field sewage oil-removing treatment apparatus |
| JP2006051484A (en) * | 2004-08-16 | 2006-02-23 | Fukuhara Co Ltd | Method for separating oil from drain water and oil separating apparatus |
| JP2007038195A (en) * | 2005-08-03 | 2007-02-15 | Fukuhara Co Ltd | Method and device for recovering floating oil from waste liquid |
| GB2432329A (en) * | 2005-11-22 | 2007-05-23 | Glr Solutions Ltd | A water treatment vessel |
| CN200999207Y (en) * | 2006-11-01 | 2008-01-02 | 中国石油大学(北京) | Dissolved-air air-floating device |
| CN101597109A (en) * | 2009-06-19 | 2009-12-09 | 黄巧玲 | Slag, water, oil separator |
-
2011
- 2011-01-06 CN CN201110001609A patent/CN102115223B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2616526Y (en) * | 2003-05-15 | 2004-05-19 | 北京百恒达石油技术有限公司 | Oil field sewage oil-removing treatment apparatus |
| JP2006051484A (en) * | 2004-08-16 | 2006-02-23 | Fukuhara Co Ltd | Method for separating oil from drain water and oil separating apparatus |
| JP2007038195A (en) * | 2005-08-03 | 2007-02-15 | Fukuhara Co Ltd | Method and device for recovering floating oil from waste liquid |
| GB2432329A (en) * | 2005-11-22 | 2007-05-23 | Glr Solutions Ltd | A water treatment vessel |
| CN200999207Y (en) * | 2006-11-01 | 2008-01-02 | 中国石油大学(北京) | Dissolved-air air-floating device |
| CN101597109A (en) * | 2009-06-19 | 2009-12-09 | 黄巧玲 | Slag, water, oil separator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102115223A (en) | 2011-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8105488B2 (en) | Waste water treatment method | |
| US7510656B2 (en) | Waste water treatment method | |
| US7527736B2 (en) | Method for generating fracturing water | |
| CN107163281B (en) | Preparation method of magnetic melamine oil absorption sponge and prepared oil absorption sponge | |
| CN105967401B (en) | A kind of Oil Field Measure pit shaft returns the method for matching liquid after drain processing for drilling fluid | |
| CN104193043B (en) | A kind of high concentration alkaline waste water containing arsenic dearsenification treatment process and method | |
| CN203530059U (en) | Treatment system of waste drilling mud filtrate | |
| CN105645630A (en) | Water-based drilling well-completion waste treatment method | |
| CN107235580B (en) | Treatment method and equipment for fracturing flowback fluid of oil and gas field drilling well | |
| CN102115223B (en) | Method for treating micro-nano bubbles of oil extraction sewage in oil field | |
| CA2657072C (en) | Waste water treatment method | |
| RU2352771C2 (en) | Method of applying modified polymer compositions for increased oil withdrawal of formations | |
| CN204079711U (en) | A kind of regeneration paper mill wastewater recycling and processing device | |
| CN1982230A (en) | Method for removing cloud point of sea water drasticlly and producing acid waste-water neutralizer | |
| CN105668845B (en) | Using offshore oilfield recovered water as the processing method of reinjected water | |
| CN104338515A (en) | Calcium ion adsorbent, preparation method thereof and adsorption method of calcium ion in sewage | |
| CN203319797U (en) | Coal mine wastewater treatment device | |
| CN102674588B (en) | Treatment method of oilfield ASP (alkaline surfactant polymer) flooding high-polymer produced water | |
| CN102964025B (en) | Method for prevention and elimination of scaling in papermaking wastewater closed circulation system | |
| CN203095681U (en) | Continuous type electric adsorption system | |
| CN109553275A (en) | Automatic integration of sludge concentrating and dewatering belt filter-pressing process process | |
| CN102807276A (en) | Wastewater treatment agent for well fracturing flowback wastewater and treatment method thereof | |
| CN107176730B (en) | High-salinity wastewater recycling treatment process in rare earth industry | |
| CN102477129A (en) | Synthesis technology of hydrophobic polymeric flocculant for raising flocculation effect | |
| CN205861665U (en) | Profundal zone sewage detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20110706 Assignee: Yangzhou Chicheng Petroleum Machinery Co.,Ltd. Assignor: Shandong University Contract record no.: 2016370000006 Denomination of invention: Method for treating micro-nano bubbles of oil extraction sewage in oil field Granted publication date: 20120905 License type: Exclusive License Record date: 20160201 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 |