CN105668954B - A method of it breaking steady medicament and breaks steady chemicals treatment oil field polymer-containing oil sludge using this - Google Patents
A method of it breaking steady medicament and breaks steady chemicals treatment oil field polymer-containing oil sludge using this Download PDFInfo
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- CN105668954B CN105668954B CN201410670900.7A CN201410670900A CN105668954B CN 105668954 B CN105668954 B CN 105668954B CN 201410670900 A CN201410670900 A CN 201410670900A CN 105668954 B CN105668954 B CN 105668954B
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Abstract
The present invention provide it is a kind of break steady medicament and apply the method for breaking steady chemicals treatment oil field polymer-containing oil sludge.This breaks the mixed liquor that steady medicament is made of the raw material that following parts by volume matches: mass percentage concentration is the sulfuric acid solution 2-4 of 70-80%；Mass percentage concentration is the calcium chloride dihydrate solution 96-98 of 0.1-0.2%.Carried out as follows with the above-mentioned method for breaking steady chemicals treatment oil field polymer-containing oil sludge: polymer-containing oil sludge is added in reactor by a., according to polymer-containing oil sludge: breaking steady medicament=1:3-8 weight addition and break steady medicament, 70-80 DEG C are heated under stirring, the temperature is controlled and continues stirring 20-25 minutes；B. then then at mixing speed be 1-2 revs/min under the conditions of, continue stirring 15-25 minute, stop heat；C. it send the material of b step to standing three phase separator, stands at least 2 hours, oil-mud-moisture bed boundary is clear, oil recycling, and water send brokenly steady medicament process, mud discharge.
Description
Technical field:
The present invention relates to the processing technology field of oil field polymer-containing oil sludge, especially a kind of oil field polymer-containing oil sludge break steady medicament and
Using the method for breaking steady chemicals treatment oil field polymer-containing oil sludge.
Background technique:
Polymer-containing oil sludge is the solid waste generated during In Oil Field Exploration And Development, has been put into " National Hazard waste
Register ", sludge per ton need to pay 1000 yuan of charges for disposing pollutants.It is mainly characterized by moisture content height, complicated component, contains polymer, oil
A variety of poisonous and harmful substances such as class, benzene series class, phenols are the coagulation groups of various particles, water and bubble formation, and settling property is poor,
It is difficult to separate and handle, be one of the important pollutant in oilfield development process.As the continuous increase of scale is adopted in oil field three, contain
The yield of poly- greasy filth will be continuously increased.Polymer-containing oil sludge dehydration pre-treatment grease consolidates three-phase agglutination, system and keeps steady for a long time
Fixed, dehydration minimizing is difficult, and shortage effectively breaks steady medicament, without mating corresponding minimizing treatment process.It at present can only be through
As the additive of fuel or progress washing process etc. after the simple process such as filters pressing, not only recycling degree is very low, but also transports
It is at high cost, it is a no small burden of enterprise.Therefore, how effectively to recycle the petroleum-type in sludge, reduce polymer-containing oil sludge
Volume, reduce its moisture content, it is final to realize greasy filth minimizing and resource recycling, it has also become in oil field mud treatment process
Main problem.The present invention can be realized efficiently separating for polymer-containing oil sludge greasy filth water, realizes minimizing and recycling, can effectively solve
The certainly harmless treatment of In Oil Field Exploration And Development danger solid waste and resource utilization problem.
Summary of the invention:
The present invention is directed to overcome the deficiencies in the prior art, the first purpose, which is to provide one kind, can be carried out oil field polymer-containing oil sludge
Oil-water-mud three-phase efficiently separates and cheap broken steady medicament, and the second purpose is to provide described in a kind of one of application purpose
The method for breaking steady chemicals treatment oil field polymer-containing oil sludge.
An object of the present invention can be achieved by the following technical measures:
This breaks the mixed liquor that steady medicament is made of the raw material that following parts by volume matches:
Mass percentage concentration is the sulfuric acid solution 2-4 of 70-80%
Mass percentage concentration is the calcium chloride dihydrate solution 96-98 of 0.1-0.2%.
The second object of the present invention can be achieved by the following technical measures:
Using the method recited above for breaking steady chemicals treatment oil field polymer-containing oil sludge.
A. polymer-containing oil sludge is added in reactor, according to polymer-containing oil sludge: breaking steady medicament=1:3-8 weight and be added
Steady medicament is broken, is heated to 70-80 DEG C under stirring, the temperature is controlled and continues stirring 20-25 minutes；
B. then then at mixing speed be 1-2 revs/min under the conditions of, continue stirring 15-25 minute, stop heat；
C. it send the material of b step to standing three phase separator, stands at least 2 hours, oil-mud-moisture bed boundary is clear, oil
Recycling, water send brokenly steady medicament process, mud discharge.
The second object of the present invention can be also achieved by the following technical measures:
Polymer-containing oil sludge described in a step: steady medicament=1:4-5 parts by weight are broken.
Standing described in step c is 4-12 hours.
Mixing speed described in b step is 1 rev/min.
The present invention is carried out based on following principle:
(1) polyacrylamide macromolecule PAM is remained in greasy filth issues unboiled water solution, the hydrolysis of AM structural unit in hydrogen ion effect
Carboxyl is generated, and imidization reaction occurs.When imidizate occurs when intermolecular, the gel of crosslinking is generated, in emulsion
Polymer dissolubility be deteriorated, cause greasy filth viscosity reduce and oil-water interfaces destruction and unstability.The change of molecular structure
Lead to its set of physicochemical Behavioral change, the solid particles such as absorption silt on strand are released.
(2) some Surface Active Substances, such as colloid in crude oil, pitch, aphthenic acids etc., and in oil exploitation China and foreign countries
The surfactant added in the protonation treatment process of greasy filth, lose by surface-active, and greasy filth is caused to be demulsified.
(3) thermodynamic activity reduces the viscosity of crude oil, provides oily point, clay particle and hydrone vibration and diffusion
Energy and each speed that split-phase is assembled again, accelerate oil-water-mud phase separation, promote the broken of W/O boundary layer
It splits and the dehydration of greasy filth, the processes such as separation sedimentation of silt.
(4) calcium ion, can be with the organic macromolecule yin in sewage while the surface charge balance for changing foundry loam colloid
Ionic electrolytes form the ionic calcium cpd of solubility very little, destroy the dissolution equilibrium of solution.
Separate water reuse: it is each after standing 2 hours to be mutually layered, but water is unclear, and it is clearly saturating that water is layered after 24-48 hours
It is bright.Due to containing part medicament in water at this time, therefore it can be used as brokenly steady medicament after supplementing medicament and reuse, reaching can drop
The consumption and expense of low medicament, and can reduce or the purpose of non-treated discharge of wastewater.
Using the method for the present invention, the typical polymer-containing oil sludge in certain oil field is handled.
90g is weighed containing poly- dross sample, is placed in 1000mL beaker, while 400mL distilled water is added in beaker.It is added
Medicament, starting stirring, is heated to 70~80 DEG C, continuously stirs 20 minutes, reduces mixing speed to 1 rev/min, continues to stir
Reaction terminates after 15-25 minutes.Stop heating, stands.After stratification, liquid-surface floating oil is scraped off, and extracts upper liquid out, takes burning
Precipitating sludge in cup, the oil content of sample, calculates oil removal rate after measurement processing, investigates and contains poly- dross treatment effect.After measured,
The oil recovery rate of greasy filth is 26.0% after processing, dehydration rate 58.3%, and desliming rate is 11.7%.Oily moisture content is about after recycling
It is 23.3%.The minimizing efficiency of greasy filth pollutant is 70% or more, and reduction is obvious, while recyclable crude oil.
Processing cost of the invention: treatment method Chinese medicine cost is 32 yuan/ton of polymer-containing oil sludges, energy consumption cost 130
Yuan/ton contain poly- dross, therefore overall cost estimated value be 162 yuan/ton of polymer-containing oil sludges.
Detailed description of the invention:
Fig. 1 is process flow chart of the invention.
Specific embodiment:
Embodiment 1:
Take 4 cubic metres of sulfuric acid solution that mass percentage concentration is 70% and two water chlorinations that mass percentage concentration is 0.2%
96 cubic metres of calcium solution are mixed into brokenly steady medicament；
Using the method for breaking steady chemicals treatment oil field polymer-containing oil sludge:
A. it takes 1 ton of polymer-containing oil sludge to be added in reactor, is added 3 tons and breaks steady medicament, 80 DEG C are heated under stirring, control should
Temperature continues stirring 20 minutes；
B. then then at mixing speed be 1 rev/min under the conditions of, continue stirring 25 minutes, stop heating；
C. it send the material of b step to standing three phase separator, stands 2 hours, oil-mud-moisture bed boundary is clear, and oil returns
It receives, water send brokenly steady medicament process, mud discharge.
Embodiment 2:
Take 2 cubic metres of sulfuric acid solution that mass percentage concentration is 80% and two water chlorinations that mass percentage concentration is 0.1%
98 cubic metres of calcium solution are mixed into brokenly steady medicament；
Using the method for breaking steady chemicals treatment oil field polymer-containing oil sludge:
A. it takes 1 ton of polymer-containing oil sludge to be added in reactor, is added 8 tons and breaks steady medicament, 70 DEG C are heated under stirring, control should
Temperature continues stirring 25 minutes；
B. then then at mixing speed be 2 revs/min under the conditions of, continue stirring 15 minutes, stop heating；
C. it send the material of b step to standing three phase separator, stands 48 hours, oil-mud-moisture bed boundary is clear, and oil returns
It receives, water send brokenly steady medicament process, mud discharge.
Embodiment 3:
Take 3 cubic metres of sulfuric acid solution that mass percentage concentration is 75% and two water chlorinations that mass percentage concentration is 0.15%
96 cubic metres of calcium solution are mixed into brokenly steady medicament；
Using the method for breaking steady chemicals treatment oil field polymer-containing oil sludge:
A. it takes 1 ton of polymer-containing oil sludge to be added in reactor, is added 5 tons and breaks steady medicament, 75 DEG C are heated under stirring, control should
Temperature continues stirring 20 minutes；
B. then then at mixing speed be 1 rev/min under the conditions of, continue stirring 20 minutes, stop heating；
C. it send the material of b step to standing three phase separator, stands 12 hours, oil-mud-moisture bed boundary is clear, and oil returns
It receives, water send brokenly steady medicament process, mud discharge.
Embodiment 4:
Take 3 cubic metres of sulfuric acid solution that mass percentage concentration is 75% and two water chlorinations that mass percentage concentration is 0.15%
96 cubic metres of calcium solution are mixed into brokenly steady medicament；
Using the method for breaking steady chemicals treatment oil field polymer-containing oil sludge:
A. it takes 1 ton of polymer-containing oil sludge to be added in reactor, is added 4 tons and breaks steady medicament, 75 DEG C are heated under stirring, control should
Temperature continues stirring 20 minutes；
B. then then at mixing speed be 1 rev/min under the conditions of, continue stirring 20 minutes, stop heating；
C. it send the material of b step to standing three phase separator, stands 4 hours, oil-mud-moisture bed boundary is clear, and oil returns
It receives, water send brokenly steady medicament process, mud discharge.
Claims (1)
1. a kind of method for handling oil field polymer-containing oil sludge, it is characterised in that this method carries out as follows:
A. the sulfuric acid solution for being 70~80% first, in accordance with mass percentage concentration: the two water chlorine that mass percentage concentration is 0.1~0.2%
Change calcium solution=(2~4): the proportion mixing of (96~98) parts by volume must break steady medicament；Then
B. polymer-containing oil sludge is added in reactor, according to polymer-containing oil sludge: it is broken to break the steady weight of medicament=1:4~5 addition
Steady medicament is heated to 70~80 DEG C under stirring, control the temperature and continue stirring 20~25 minutes；
C. then then at mixing speed be 1 rev/min under the conditions of, continue stirring 15~25 minutes, stop heating；
D. it send the material of step c to standing three phase separator, stands 4~12 hours, oil-mud-moisture bed boundary is clear, and oil returns
It receives, water send brokenly steady medicament process, mud discharge.
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| CN201410670900.7A CN105668954B (en) | 2014-11-20 | 2014-11-20 | A method of it breaking steady medicament and breaks steady chemicals treatment oil field polymer-containing oil sludge using this |
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| CN201410670900.7A CN105668954B (en) | 2014-11-20 | 2014-11-20 | A method of it breaking steady medicament and breaks steady chemicals treatment oil field polymer-containing oil sludge using this |
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| CN105668954A CN105668954A (en) | 2016-06-15 |
| CN105668954B true CN105668954B (en) | 2018-12-28 |
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| WO2024047742A1 (en) * | 2022-08-30 | 2024-03-07 | 清水建設株式会社 | Method for treating oil-containing sludge, method for recovering oil from oil-containing sludge, apparatus for treating oil-containing sludge, apparatus for recovering oil from oil- containing sludge, system for treating oil-containing sludge, and system for recovering oil from oil-containing sludge |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6324427B2 (en) * | 1984-09-07 | 1988-05-20 | Hisashi Nakabayashi | |
| CN1919403A (en) * | 2005-08-05 | 2007-02-28 | 株式会社日立工业设备技术 | Method and apparatus for separating oil and water |
| CN103626367A (en) * | 2013-12-19 | 2014-03-12 | 中国石油大学(华东) | Method for recycling polymer-containing air flotation oil sludge |
| WO2014145057A1 (en) * | 2013-03-15 | 2014-09-18 | GreenStract, LLC | Plant-based compositions and uses thereof |
-
2014
- 2014-11-20 CN CN201410670900.7A patent/CN105668954B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6324427B2 (en) * | 1984-09-07 | 1988-05-20 | Hisashi Nakabayashi | |
| CN1919403A (en) * | 2005-08-05 | 2007-02-28 | 株式会社日立工业设备技术 | Method and apparatus for separating oil and water |
| WO2014145057A1 (en) * | 2013-03-15 | 2014-09-18 | GreenStract, LLC | Plant-based compositions and uses thereof |
| CN103626367A (en) * | 2013-12-19 | 2014-03-12 | 中国石油大学(华东) | Method for recycling polymer-containing air flotation oil sludge |
Non-Patent Citations (1)
| Title |
|---|
| 含油污泥无害化处理与资源回用技术研究;薛涛;《中国优秀博硕士学位论文全文数据库（硕士）工程科技Ⅰ辑（季刊）》;20031215;第51页第6段至第52页第2段、第58-62页第4.3节 * |
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