CN101088937A - Process of treating ternary combination flooding sewage - Google Patents
Process of treating ternary combination flooding sewage Download PDFInfo
- Publication number
- CN101088937A CN101088937A CN 200710118093 CN200710118093A CN101088937A CN 101088937 A CN101088937 A CN 101088937A CN 200710118093 CN200710118093 CN 200710118093 CN 200710118093 A CN200710118093 A CN 200710118093A CN 101088937 A CN101088937 A CN 101088937A
- Authority
- CN
- China
- Prior art keywords
- sewage
- ternary combination
- combination flooding
- treatment
- flooding
- 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.)
- Granted
Links
Images
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The process of treating ternary combination flooding sewage includes the following steps: oil-water separation; adding pH regulator in 1000-6000 mg/l into the sewage to regulate pH to 5.0-7.5; adding coagulant in 500-5000 mg/l into the sewage; adding organic flocculant in 100-1000 mg/l into the sewage; standing to deposit and separating out the flocculated matter; and filtering. The process can treat great amount of ternary combination flooding sewage into qualified injected water to prevent environmental pollution and recover great amount of oil.
Description
Technical field
The present invention relates to the method that a kind of produced fluids during asp-flooding that is used for the oil recovery factory, oil field is handled.
Background technology
At present, Daqing oil field has carried out ternary composite oil-displacing on a large scale, small-scale ternary composite oil-displacing has also been carried out in oil fields such as triumph, the Liaohe River, all obtained the effect that significantly improves oil recovery factor, but prolongation along with the time of oil recovery, the content of the polymkeric substance that returns out in the extraction liquid, tensio-active agent and alkali etc. is more and more higher, cause extraction liquid oil-water emulsion more and more serious, a difficult problem that has caused many urgent needs to solve, wherein be badly in need of to solve and the most scabrous be exactly the handling problem of ternary composite driving oily water.Produced fluids during asp-flooding is that ternary combination flooding produced liquid carries out the sewage that obtains after the oily water separation through breakdown of emulsion, because residual in the produced fluids during asp-flooding have a large amount of polymkeric substance, alkali and tensio-active agent etc., make the viscosity of sewage, the degree of scatter of oily emulsification degree and suspended solids increases in the sewage, make oily water separation, suspended solids is removed the very difficulty that becomes, in addition, because the molecular weight of the polymkeric substance in the produced fluids during asp-flooding is very big, polymer molecule can't pass through 0.45 μ m filter membrane of SY/T5329-95 " petroclastic rock reservoir water water quality is recommended index and analytical procedure " standard-required, and suspended solids content is exceeded standard, must just can make suspended solids content reach the oil field requirement polymkeric substance removal, just need a large amount of medicaments and remove polymkeric substance; Also have the pH value of produced fluids during asp-flooding higher, can be between 9.3-9.8, so high pH value has exceeded the use range of positively charged ion organic floculant and some inorganic coagulants.More than these problems all make produced fluids during asp-flooding handle to become difficulty, and the oil field is badly in need of and these sewage will be handled, and when avoiding contaminate environment, these sewage is turned waste into wealth, and reclaims crude oil and the qualified back of sewage disposal is used as re-injection water.
At present, the research that produced fluids during asp-flooding is handled is at the early-stage, and these research great majority are to study at the indoor simulation produced fluids during asp-flooding of experiment, its simulation water quality generally has very big difference with on-the-spot sewage, sewage water treatment method with simulated sewage research can not be applied to on-the-spot sewage disposal basically, by retrieval, do not see the patent of produced fluids during asp-flooding processing aspect.
Summary of the invention
The method that technical problem to be solved by this invention is to provide a kind of produced fluids during asp-flooding to handle utilizes this method to be processed into and to satisfy re-injection water every index request, qualified containing the live agent, wet goods produced fluids during asp-flooding of number of polymers, alkali, table.
The technical scheme that the present invention is taked for its technical problem of solution is:
Produced fluids during asp-flooding is handled: 1. add 1000-6000mgL in sewage after handling through oily water separation more successively according to the following steps
-1PH value conditioning agent is regulated sewage pH value between 5.0-7.5; 2. in sewage, add 500-5000mgL
-1Coagulating agent; 3. in sewage, add 100-1000mgL
-1Organic floculant; 4. sewage is carried out standing sedimentation, from sewage, isolate the flco that abovementioned steps adds described coagulating agent and the generation of described organic floculant afterreaction; 5. sewage is sent into known filtration unit and filtered, and obtain qualified oilfield injection water at last; 3. 2. 1. above-mentioned steps be to carry out under the state that stirs all the time, and guarantee the pH value conditioning agent, coagulating agent, organic floculant and the sewage thorough mixing that are added.
Further, 3. 2. 1. above-mentioned steps directly carried out in sewage running piping or carried out in the reactor of sewage process respectively respectively.
Further, 4. above-mentioned steps carries out in slurry tank.
Above-mentioned pH value conditioning agent also can mix earlier mutually with coagulating agent, under condition of stirring, is that mixed multi-functional coagulating agent joins in the sewage in the reactor of sewage running piping or sewage process with mixed solution then.
Further, described pH value conditioning agent is one or more the mixture in hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, industrial waste salt acid, the industrial waste sulfuric acid.
Further, described coagulating agent is one or more the mixture in polymerize aluminum chloride, polyaluminium sulfate, PAFS, poly-silicon aluminum chloride, polymeric aluminum sulfate silicate, aluminum chloride, potassium aluminium sulfate, sodium aluminate, exsiccated ammonium alum, Tai-Ace S 150, magnesium chloride, the calcium chloride.
Further, described organic floculant is positively charged ion, nonionic and the anionic high molecular polymer of molecular weight more than 5,000,000 of polyacrylamide or modified starch series.
Handle back effluent quality: oleaginousness≤10mgL
-1Suspended solids content≤10mgL
-1PH6-9; Polyacrylamide does not detect; Colourity, water white transparency.
Effect of the present invention is that this method can be handled extremely unmanageable produced fluids during asp-flooding to up to standard, has entered industrial test, and treatment capacity is 5000M
3/ day.This technology not only can reclaim substantial oil, and main is becomes qualified injection water with the sewage disposal of a large amount of contaminate environment.
Description of drawings
Fig. 1 is first kind of embodiment processing technological flow figure of process for the treatment of ternary combination flooding sewage of the present invention;
Fig. 2 is second kind of embodiment processing technological flow figure of process for the treatment of ternary combination flooding sewage of the present invention.
Embodiment
As shown in Figure 1, produced fluids during asp-flooding is at first handled the crude oil that further reclaims in the sewage through oily water separation, and then under condition of stirring, the reactor by sewage running piping or sewage process adds 1000-6000mgL in sewage
-1PH value conditioning agent makes conditioning agent and sewage thorough mixing, regulates sewage pH value between 5.0-7.5; Continuing under the condition of stirring, the reactor by sewage running piping or sewage process adds 500-5000mgL in sewage
-1Coagulating agent, behind the thorough mixing, continue to stir and the reactor by sewage running piping or sewage process adds 100-1000mgL in sewage
-1Organic floculant, behind the thorough mixing, sewage is sent into slurry tank, carrying out standing sedimentation handles, from sewage, separate with the flco that the organic floculant afterreaction generates adding coagulating agent, then sewage is sent into known filtration unit and carried out filtration treatment, obtain qualified oilfield injection water at last.
As shown in Figure 2, pH value conditioning agent and coagulating agent in the embodiment shown in Figure 1 also can mix earlier mutually, under condition of stirring, mixed solution are joined in the sewage in the reactor of sewage running piping or sewage process then.
Above-mentioned used pH value conditioning agent can be selected one or more the mixture in hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, industrial waste salt acid, the industrial waste sulfuric acid for use.
Above-mentioned used coagulating agent is one or more the mixture in polymerize aluminum chloride, polyaluminium sulfate, PAFS, poly-silicon aluminum chloride, polymeric aluminum sulfate silicate, aluminum chloride, potassium aluminium sulfate, sodium aluminate, exsiccated ammonium alum, Tai-Ace S 150, magnesium chloride, the calcium chloride.
Positively charged ion, nonionic and the anionic high molecular polymer of the molecular weight that above-mentioned used organic floculant is polyacrylamide or modified starch series more than 5,000,000.
Sewage quality: oleaginousness 200-1000mgL before handling
-1Suspended solids content 100-900mgL
-1Polyacrylamide 120-300mgL
-1, tensio-active agent 10-100mgL
-1, alkali 800-2000mgL
-1, pH value 9.4.
Handle back effluent quality: oleaginousness≤10mgL
-1Suspended solids content≤10mgL
-1PH6-9; Polyacrylamide does not detect; Colourity, water white transparency.
Claims (7)
1. process for the treatment of ternary combination flooding sewage, its concrete steps are: produced fluids during asp-flooding is handled: 1. add 1000-6000mgL in sewage after handling through oily water separation more successively according to the following steps
-1PH value conditioning agent is regulated sewage pH value between 5.0-7.5; 2. in sewage, add 500-5000mgL
-1Coagulating agent; 3. in sewage, add 100-1000mgL
-1Organic floculant; 4. sewage is carried out standing sedimentation, from sewage, isolate the flco that abovementioned steps adds described coagulating agent and the generation of described organic floculant afterreaction; 5. sewage is sent into known filtration unit and filtered, and obtain qualified oilfield injection water at last; 3. 2. 1. above-mentioned steps be to carry out under the state that stirs all the time, and guarantee the pH value conditioning agent, coagulating agent, organic floculant and the sewage thorough mixing that are added.
2. process for the treatment of ternary combination flooding sewage as claimed in claim 1 is characterized in that, 3. 2. 1. above-mentioned steps directly carried out in sewage running piping or carried out in the reactor of sewage process respectively respectively.
3. process for the treatment of ternary combination flooding sewage as claimed in claim 1 is characterized in that 4. above-mentioned steps carries out in slurry tank.
4. process for the treatment of ternary combination flooding sewage as claimed in claim 1 is characterized in that, the pH value conditioning agent of above-mentioned steps in 1. and the step coagulating agent in 2. mixes earlier mutually, and then mixed solution is joined in the sewage, after continue subsequent processing steps again.
5. process for the treatment of ternary combination flooding sewage as claimed in claim 1 is characterized in that, described pH value conditioning agent is one or more the mixture in hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, industrial waste salt acid, the industrial waste sulfuric acid.
6. process for the treatment of ternary combination flooding sewage as claimed in claim 1, it is characterized in that described coagulating agent is one or more the mixture in polymerize aluminum chloride, polyaluminium sulfate, PAFS, poly-silicon aluminum chloride, polymeric aluminum sulfate silicate, aluminum chloride, potassium aluminium sulfate, sodium aluminate, exsiccated ammonium alum, Tai-Ace S 150, magnesium chloride, the calcium chloride.
7. process for the treatment of ternary combination flooding sewage as claimed in claim 1 is characterized in that, described organic floculant is positively charged ion, nonionic and the anionic high molecular polymer of molecular weight more than 5,000,000 of polyacrylamide or modified starch series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101180938A CN100554191C (en) | 2007-06-28 | 2007-06-28 | Process for the treatment of ternary combination flooding sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101180938A CN100554191C (en) | 2007-06-28 | 2007-06-28 | Process for the treatment of ternary combination flooding sewage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101088937A true CN101088937A (en) | 2007-12-19 |
| CN100554191C CN100554191C (en) | 2009-10-28 |
Family
ID=38942462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101180938A Active CN100554191C (en) | 2007-06-28 | 2007-06-28 | Process for the treatment of ternary combination flooding sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100554191C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101698526B (en) * | 2009-04-07 | 2011-08-03 | 甘肃宇辰化工器材装备有限公司 | Emulsified waste water treatment agent and using method thereof |
| CN102351346A (en) * | 2011-08-30 | 2012-02-15 | 北京恩瑞达科技有限公司 | Method for treating oil field sewage |
| CN102963967A (en) * | 2012-09-02 | 2013-03-13 | 栾川县秦豫科技有限公司 | Molybdenum dressing tailing slurry treatment agent and preparation method thereof |
| CN103387274A (en) * | 2013-08-08 | 2013-11-13 | 甘肃宇辰化工器材装备有限公司 | Sulfide-bearing wastewater treating agent and preparation method and use method thereof |
| CN104828921A (en) * | 2015-05-23 | 2015-08-12 | 张家港市鸿嘉数字科技有限公司 | Muddy water purifying agent |
| CN104909416A (en) * | 2015-06-26 | 2015-09-16 | 甘肃金雨环保科技有限公司 | Atmospheric-vacuum Sanding wastewater treatment agent, and preparation method and application method thereof |
| CN104944629A (en) * | 2015-05-26 | 2015-09-30 | 山东大学 | Method for treating water-soluble polymer containing wastewater |
| CN109368847A (en) * | 2018-10-31 | 2019-02-22 | 西安美恩环保科技有限公司 | A kind of composite flocculation agent and preparation method thereof |
| CN110709489A (en) * | 2017-06-13 | 2020-01-17 | 西门子能源公司 | Use of composite media for treating produced water from chemically enhanced oil recovery |
| CN114506957A (en) * | 2022-02-27 | 2022-05-17 | 湖南华菱湘潭钢铁有限公司 | Method for deep dehydration of emulsified waste oil and fat and treatment of oil-containing wastewater |
-
2007
- 2007-06-28 CN CNB2007101180938A patent/CN100554191C/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101698526B (en) * | 2009-04-07 | 2011-08-03 | 甘肃宇辰化工器材装备有限公司 | Emulsified waste water treatment agent and using method thereof |
| CN102351346A (en) * | 2011-08-30 | 2012-02-15 | 北京恩瑞达科技有限公司 | Method for treating oil field sewage |
| CN102963967A (en) * | 2012-09-02 | 2013-03-13 | 栾川县秦豫科技有限公司 | Molybdenum dressing tailing slurry treatment agent and preparation method thereof |
| CN103387274A (en) * | 2013-08-08 | 2013-11-13 | 甘肃宇辰化工器材装备有限公司 | Sulfide-bearing wastewater treating agent and preparation method and use method thereof |
| CN103387274B (en) * | 2013-08-08 | 2015-02-18 | 甘肃宇辰化工器材装备有限公司 | Preparation method of sulfide-bearing wastewater treating agent |
| CN104828921A (en) * | 2015-05-23 | 2015-08-12 | 张家港市鸿嘉数字科技有限公司 | Muddy water purifying agent |
| CN104944629A (en) * | 2015-05-26 | 2015-09-30 | 山东大学 | Method for treating water-soluble polymer containing wastewater |
| CN104909416A (en) * | 2015-06-26 | 2015-09-16 | 甘肃金雨环保科技有限公司 | Atmospheric-vacuum Sanding wastewater treatment agent, and preparation method and application method thereof |
| CN104909416B (en) * | 2015-06-26 | 2017-06-30 | 甘肃金雨环保科技有限公司 | The top of a kind of Atmospheric vacuum three waste water treating agent and preparation method thereof and application method |
| CN110709489A (en) * | 2017-06-13 | 2020-01-17 | 西门子能源公司 | Use of composite media for treating produced water from chemically enhanced oil recovery |
| CN109368847A (en) * | 2018-10-31 | 2019-02-22 | 西安美恩环保科技有限公司 | A kind of composite flocculation agent and preparation method thereof |
| CN114506957A (en) * | 2022-02-27 | 2022-05-17 | 湖南华菱湘潭钢铁有限公司 | Method for deep dehydration of emulsified waste oil and fat and treatment of oil-containing wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100554191C (en) | 2009-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100554191C (en) | Process for the treatment of ternary combination flooding sewage | |
| US20100155337A1 (en) | Process of treating sewage in ternary combination flooding | |
| CN104310628B (en) | A kind of reuse method of water-base fracturing flowback fluid | |
| CA2874099C (en) | Enhanced techniques for dewatering thick fine tailings with flocculant dosing on clay basis | |
| CN109574394B (en) | Fracturing flowback fluid treatment method | |
| CN102320699B (en) | Method for destabilization coagulating treatment of well drilling waste liquid | |
| US11027993B2 (en) | Oil sands tailings treatment | |
| CN108348821A (en) | System and method for being handled water such as oil field waste by chemical coagulation | |
| Nan et al. | Breakage and regrowth of flocs formed by sweep coagulation using additional coagulant of poly aluminium chloride and non-ionic polyacrylamide | |
| CN101318729A (en) | Thick oil sewage water degreaser | |
| CN109052908A (en) | Polysulfonate system waste drilling mud processing method | |
| US10913670B2 (en) | Oil sands tailings treatment | |
| CN104787923A (en) | Movable skidded treatment method of oil field sewage | |
| WO2019018370A2 (en) | Oil sands tailings treatment | |
| CN105060446A (en) | Organic macromolecular flocculating agent for polymer-bearing sewage and preparation method for organic macromolecular flocculating agent | |
| CN110240315A (en) | The method and device thereof that boron processing cycle recycles are removed for guanidine glue fracturing outlet liquid | |
| CN103351065B (en) | The method of wastewater treatment of mixed type cast waste sand wet reclamation | |
| CN101397160B (en) | Demulsifier for thick oil sewage | |
| CN106008802A (en) | Preparation technology of cationic polyacrylamide water-in-oil emulsion | |
| CN103922438B (en) | A kind of ultra-thick oil waste water reverse-phase emulsifier preparation technology and breaking method | |
| CN102086071A (en) | New reinjection treatment method of polysulfonate drilling wastewater | |
| CN106554067A (en) | Ter-polymers are used for the degreaser that heavy crude heat extraction sewage is processed | |
| CN106430510A (en) | Reagent for preparing reusing petroleum drilling wastewater into slurry for reuse and application thereof | |
| CN102019110B (en) | Chemically reinforced solid-liquid separation method for well drilling waste liquid | |
| CN106496404B (en) | Polyacrylate polymer dispersion liquid |
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 | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160302 Address after: 163316 No. 28 Xinfa street, hi tech Development Zone, Heilongjiang, Daqing Patentee after: Daqing Dafeng Energy Technology Service Co., Ltd. Address before: 100085, road, Zhongguancun, Haidian District science and Technology Park, Haidian Park Business Service Center, 5, Beijing Patentee before: Beijing Hai'enrunde Chemical Sci-Tech Co., Ltd. Patentee before: Dafeng Oil Field Tech Co., Ltd., Daqing |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170822 Address after: 163316 No. 28-4 Xinfa street, Daqing Development Zone, Heilongjiang, China Patentee after: Daqing demeitel Technology Co., Ltd. Address before: 163316 No. 28 Xinfa street, hi tech Development Zone, Heilongjiang, Daqing Patentee before: Daqing Dafeng Energy Technology Service Co., Ltd. |