CN105084435A - Multifunctional treating agent for oilfield sewage - Google Patents
Multifunctional treating agent for oilfield sewage Download PDFInfo
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- CN105084435A CN105084435A CN201510513067.XA CN201510513067A CN105084435A CN 105084435 A CN105084435 A CN 105084435A CN 201510513067 A CN201510513067 A CN 201510513067A CN 105084435 A CN105084435 A CN 105084435A
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Abstract
The invention relates to a multifunctional treating agent for oilfield sewage, which is composed of the following components in parts by weight: 15-25 parts of demulsifier, 10-20 parts of flocculant, 20-25 parts of corrosion inhibitor, 5-10 parts of surfactant and 5-8 parts of bactericide. The treating agent can simultaneously perform the functions of demulsification, flocculation, bridging, foaming, corrosion and scale inhibition, and sterilization. The composite oily sewage treating agent has the advantages of low consumption, high oil removal rate and obvious corrosion and scale inhibition effects, and is especially suitable for treating high-concentration oilfield sewage.
Description
Technical field
The present invention relates to a kind of oilfield sewage Multifunctional Additive, belong to water treatment field.
Background technology
Adopt the oil field of water flooding recovery, from the water of water injection well note people oil reservoir, wherein major part gets back to ground by producing well with crude oil, this part water crude oil outward transport and outer defeated before must be removed, containing crude oil in the sewage deviate from, be therefore called as oil field extracted water.Along with the growth in oilfield exploitation age, the water ratio adopting water liquid constantly rises, and some blocks reach more than 90%, and these oily(waste)waters have become the main injection water source in oil field.Along with the continuous exploitation of oil field Periphery Low Permeability Oilfield and Untabulated reservoirs, stricter to the requirement of oil-field flooding water quality.
Drilling waste water composition is also very complicated, mainly comprises drilling fluid, flushing fluid etc.The pollutent of drilling waste water mainly comprises drilling cuttings, oil, viscosity control agent (as clay), weighting agent, clay stabilizer, etching reagent, sanitas, sterilant, lubricant, stratum affinity agent, defoamer etc., also containing heavy metal in drilling waste water.
The treatment process of the oilfield sewage generally adopted in currently available technology mainly contains: Physical, chemical method, physico-chemical processes, biological process.
The emphasis of physical treatment process removes mineral substance in waste water and most of suspended solid, oils etc.Physical mainly comprises the methods such as gravity separation, centrifugation, filtration, coarse, membrane sepn and evaporation.Its main drawback is that floor space is blocked up greatly, easily, and when having a tensio-active agent, weak effect, filter bed will rinse repeatedly.
Chemical method is mainly for the treatment of can not oil in water emulsion in a part of colloid of removing of independent Physical or biological process and dissolved matter, particularly oily(waste)water in waste water.Comprise coagulating sedimentation, chemical conversion and neutralisation.Its main drawback takes up an area greatly, and dosing is large, and mud is difficult.
Oilfield sewage materialization treatment process generally includes By Bubble-floating Method and absorption method two kinds.Its main drawback takes up an area greatly, and dosing is large, invests high, adsorbent reactivation.
Development have coagulability strong, can fast emulsion breaking, settling velocity is fast, inhibiter scale prevention ability is strong and the actual needs that the multifunctional water treating agent having sterilizing function concurrently is the process field such as oil field extracted water, drilling waste water is also direction, forward position.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of oilfield sewage Multifunctional Additive is provided, is made up of emulsion splitter, flocculation agent, inhibiter, tensio-active agent and sterilant; The mass fraction of each component is emulsion splitter 15-25 part, flocculation agent 10-20 part, inhibiter 20-25 part, tensio-active agent 5-10 part, sterilant 5-8 part;
Wherein, emulsion splitter is made up of the raw material of following parts by weight:
Etherification starch 15-18
Hexadecanol Soxylat A 25-7 2-5
Tetramethylolmethane 5-7
Ethoxylated dodecyl alcohol 12-15
Wherein, flocculation agent is made up of the raw material of following parts by weight:
Polyacrylamide 11-15
Trolamine 1-4
Wherein, inhibiter is made up of the raw material of following parts by weight:
Tetradecyl chloride base dimethyl benzyl ammonium 8-15
1-[two (4-cyano-phenyl) methyl]-1,2,4-triazole 9-14
Dioctyl phthalate (DOP) 2-5
Acetic acid 4-methoxy benzyl ester 30-35
Wherein, tensio-active agent is made up of the raw material of following parts by weight:
Sodium pentahydyoxycaproate 20-25
Alkyl sodium sulfonate 4-8
Hexadecanol phosphate kalium salt 20-30
Beet alkali ampholytic surface active agent 4-6
Wherein, sterilant is made up of the raw material of following parts by weight:
2-amino-5-guanidinopentanoic acid 10-20
Friedelin 8-10
Thymopeptide-5 5-7.
Preferably, emulsion splitter is made up of the raw material of following parts by weight:
Etherification starch 16
Hexadecanol Soxylat A 25-7 4
Tetramethylolmethane 6
Ethoxylated dodecyl alcohol 13
Preferably, flocculation agent is made up of the raw material of following parts by weight:
Polyacrylamide 13
Trolamine 2.
Preferably, inhibiter is made up of the raw material of following parts by weight:
Tetradecyl chloride base dimethyl benzyl ammonium 12
1-[two (4-cyano-phenyl) methyl]-1,2,4-triazoles 13
Dioctyl phthalate (DOP) 3
Acetic acid 4-methoxy benzyl ester 32
Preferably, tensio-active agent is made up of the raw material of following parts by weight:
Sodium pentahydyoxycaproate 22
Alkyl sodium sulfonate 6
Hexadecanol phosphate kalium salt 25
Beet alkali ampholytic surface active agent 5
Preferably, sterilant is made up of the raw material of following parts by weight:
2-amino-5-guanidinopentanoic acid 15
Friedelin 9
Thymopeptide-5 9.
The present invention has following beneficial effect:
Multi-functional oil field sewage-treating agent provided by the invention, is made up of emulsion splitter, flocculation agent, inhibiter, tensio-active agent and sterilant, can play the effect of breakdown of emulsion, flocculation, bridge formation, foaming, corrosion-mitigation scale-inhibition, sterilization simultaneously.Etherification starch, hexadecanol Soxylat A 25-7, tetramethylolmethane, several material of ethoxylated dodecyl alcohol are composite, create synergistic effect, show good effect of demulsification and oil removal, form preliminary trickle oil slick slag.Trolamine, polyacrylamide two kinds of materials are composite, create synergistic effect, improve flocculation and bridging action greatly.Sodium pentahydyoxycaproate, alkyl sodium sulfonate, hexadecanol phosphate kalium salt, several material of beet alkali ampholytic surface active agent composite, creates synergistic effect, serves good lathering property, and very big follow-up greasy dirt is easily separated.Tetradecyl chloride base dimethyl benzyl ammonium, 1-[two (4-cyano-phenyl) methyl]-1,2,4-triazole, dioctyl phthalate (DOP), several material of acetic acid 4-methoxy benzyl ester are composite, create synergy, greatly improve the inhibition to waste water, scale effect, effectively prevent the corrosion of pipe-line equipment.2-amino-5-guanidinopentanoic acid, friedelin, thymopeptide-5 three kinds of materials are composite, create synergy, greatly improve the sterilization and disinfection effect to waste water.The functional group's electric density such as hydroxyl, amido, sulfonic group simultaneously had in each component is high, and breakdown of emulsion is good, good water solubility.The consumption of oilfield sewage Multifunctional Additive of the present invention is little, and oil removal rate is high, and corrosion-mitigation scale-inhibition effect is obvious, is specially adapted to the process of high density oilfield sewage.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment one:
A kind of oilfield sewage Multifunctional Additive, is made up of emulsion splitter, flocculation agent, inhibiter, tensio-active agent and sterilant; The mass fraction of each component is emulsion splitter 15-25 part, flocculation agent 10-20 part, inhibiter 20-25 part, tensio-active agent 5-10 part, sterilant 5-8 part;
Wherein, emulsion splitter is made up of the raw material of following parts by weight:
Etherification starch 15
Hexadecanol Soxylat A 25-7 2
Tetramethylolmethane 5
Ethoxylated dodecyl alcohol 12;
Wherein, flocculation agent is made up of the raw material of following parts by weight:
Polyacrylamide 11
Trolamine 1;
Wherein, inhibiter is made up of the raw material of following parts by weight:
Tetradecyl chloride base dimethyl benzyl ammonium 8
1-[two (4-cyano-phenyl) methyl]-1,2,4-triazoles 9
Dioctyl phthalate (DOP) 2
Acetic acid 4-methoxy benzyl ester 30;
Wherein, tensio-active agent is made up of the raw material of following parts by weight:
Sodium pentahydyoxycaproate 20
Alkyl sodium sulfonate 4
Hexadecanol phosphate kalium salt 20
Beet alkali ampholytic surface active agent 4;
Wherein, sterilant is made up of the raw material of following parts by weight:
2-amino-5-guanidinopentanoic acid 10
Friedelin 8
Thymopeptide-5 5.
Above-mentioned treatment agent being added to oleaginousness is in the sewage of 940mg/L, dosage 8mg/L, and after reacting completely, oil removal rate reaches 97.3%, and the average corrosion rate of sewage is 0.0011mm/a.
Embodiment two:
A kind of oilfield sewage Multifunctional Additive, is made up of emulsion splitter, flocculation agent, inhibiter, tensio-active agent and sterilant; The mass fraction of each component is emulsion splitter 15-25 part, flocculation agent 10-20 part, inhibiter 20-25 part, tensio-active agent 5-10 part, sterilant 5-8 part;
Wherein, emulsion splitter is made up of the raw material of following parts by weight:
Etherification starch 18
Hexadecanol Soxylat A 25-7 5
Tetramethylolmethane 7
Ethoxylated dodecyl alcohol 15;
Wherein, flocculation agent is made up of the raw material of following parts by weight:
Polyacrylamide 15
Trolamine 4;
Wherein, inhibiter is made up of the raw material of following parts by weight:
Tetradecyl chloride base dimethyl benzyl ammonium 15
1-[two (4-cyano-phenyl) methyl]-1,2,4-triazoles 14
Dioctyl phthalate (DOP) 5
Acetic acid 4-methoxy benzyl ester 35;
Wherein, tensio-active agent is made up of the raw material of following parts by weight:
Sodium pentahydyoxycaproate 25
Alkyl sodium sulfonate 8
Hexadecanol phosphate kalium salt 30
Beet alkali ampholytic surface active agent 6;
Wherein, sterilant is made up of the raw material of following parts by weight:
2-amino-5-guanidinopentanoic acid 20
Friedelin 10
Thymopeptide-5 7.
Above-mentioned treatment agent being added to oleaginousness is in the sewage of 990mg/L, dosage 9mg/L, and after reacting completely, oil removal rate reaches 98.7%, the average corrosion rate of sewage is 0.0005mm/a.。
Embodiment three:
A kind of oilfield sewage Multifunctional Additive, is made up of emulsion splitter, flocculation agent, inhibiter, tensio-active agent and sterilant; The mass fraction of each component is emulsion splitter 15-25 part, flocculation agent 10-20 part, inhibiter 20-25 part, tensio-active agent 5-10 part, sterilant 5-8 part;
Wherein, emulsion splitter is made up of the raw material of following parts by weight:
Etherification starch 16
Hexadecanol Soxylat A 25-7 4
Tetramethylolmethane 6
Ethoxylated dodecyl alcohol 13
Wherein, flocculation agent is made up of the raw material of following parts by weight:
Polyacrylamide 13
Trolamine 2
Wherein, inhibiter is made up of the raw material of following parts by weight:
Tetradecyl chloride base dimethyl benzyl ammonium 12
1-[two (4-cyano-phenyl) methyl]-1,2,4-triazoles 13
Dioctyl phthalate (DOP) 3
Acetic acid 4-methoxy benzyl ester 32
Wherein, tensio-active agent is made up of the raw material of following parts by weight:
Sodium pentahydyoxycaproate 22
Alkyl sodium sulfonate 6
Hexadecanol phosphate kalium salt 25
Beet alkali ampholytic surface active agent 5
Wherein, sterilant is made up of the raw material of following parts by weight:
2-amino-5-guanidinopentanoic acid 15
Friedelin 9
Thymopeptide-5 9.
Above-mentioned treatment agent being added to oleaginousness is in the sewage of 1050mg/L, dosage 10mg/L, and after reacting completely, oil removal rate reaches 97.4%, and the average corrosion rate of sewage is 0.0009mm/a.，。
Above-mentioned explanation fully discloses the specific embodiment of the present invention.It is pointed out that the scope be familiar with person skilled in art and any change that the specific embodiment of the present invention is done all do not departed to claims of the present invention.Correspondingly, the scope of claim of the present invention is also not limited only to previous embodiment.
Claims (2)
1. an oilfield sewage Multifunctional Additive, is characterized in that, is made up of emulsion splitter, flocculation agent, inhibiter, tensio-active agent and sterilant; The mass fraction of each component is emulsion splitter 15-25 part, flocculation agent 10-20 part, inhibiter 20-25 part, tensio-active agent 5-10 part, sterilant 5-8 part;
Wherein, emulsion splitter is made up of the raw material of following parts by weight:
Etherification starch 15-18
Hexadecanol Soxylat A 25-7 2-5
Tetramethylolmethane 5-7
Ethoxylated dodecyl alcohol 12-15
Wherein, flocculation agent is made up of the raw material of following parts by weight:
Polyacrylamide 11-15
Trolamine 1-4
Wherein, inhibiter is made up of the raw material of following parts by weight:
Tetradecyl chloride base dimethyl benzyl ammonium 8-15
1-[two (4-cyano-phenyl) methyl]-1,2,4-triazole 9-14
Dioctyl phthalate (DOP) 2-5
Acetic acid 4-methoxy benzyl ester 30-35
Wherein, tensio-active agent is made up of the raw material of following parts by weight:
Sodium pentahydyoxycaproate 20-25
Alkyl sodium sulfonate 4-8
Hexadecanol phosphate kalium salt 20-30
Beet alkali ampholytic surface active agent 4-6
Wherein, sterilant is made up of the raw material of following parts by weight:
2-amino-5-guanidinopentanoic acid 10-20
Friedelin 8-10
Thymopeptide-5 is about 5-7.
2. oilfield sewage Multifunctional Additive according to claim 1, is characterized in that,
Wherein, emulsion splitter is made up of the raw material of following parts by weight:
Etherification starch 16
Hexadecanol Soxylat A 25-7 4
Tetramethylolmethane 6
Ethoxylated dodecyl alcohol 13
Wherein, flocculation agent is made up of the raw material of following parts by weight:
Polyacrylamide 13
Trolamine 2
Wherein, inhibiter is made up of the raw material of following parts by weight:
Tetradecyl chloride base dimethyl benzyl ammonium 12
1-[two (4-cyano-phenyl) methyl]-1,2,4-triazoles 13
Dioctyl phthalate (DOP) 3
Acetic acid 4-methoxy benzyl ester 32
Wherein, tensio-active agent is made up of the raw material of following parts by weight:
Sodium pentahydyoxycaproate 22
Alkyl sodium sulfonate 6
Hexadecanol phosphate kalium salt 25
Beet alkali ampholytic surface active agent 5
Wherein, sterilant is made up of the raw material of following parts by weight:
2-amino-5-guanidinopentanoic acid 15
Friedelin 9
Thymopeptide-5 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510513067.XA CN105084435A (en) | 2015-08-20 | 2015-08-20 | Multifunctional treating agent for oilfield sewage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510513067.XA CN105084435A (en) | 2015-08-20 | 2015-08-20 | Multifunctional treating agent for oilfield sewage |
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| CN105084435A true CN105084435A (en) | 2015-11-25 |
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| CN201510513067.XA Pending CN105084435A (en) | 2015-08-20 | 2015-08-20 | Multifunctional treating agent for oilfield sewage |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668686A (en) * | 2016-03-16 | 2016-06-15 | 安徽海德石油化工有限公司 | Washing liquor for refinery waste gas primary treatment |
| CN105771327A (en) * | 2016-05-26 | 2016-07-20 | 句容宁武高新技术发展有限公司 | Compound demulsifying agent capable of improving demulsifying effect of polyether demulsifying agents |
| CN108314104A (en) * | 2018-03-16 | 2018-07-24 | 山东冬瑞高新技术开发有限公司 | A kind of sewage-treating agent and preparation method thereof |
| CN109179573A (en) * | 2018-11-15 | 2019-01-11 | 刘益波 | A kind of inorganic agent and preparation method thereof can be used for handling sanitary sewage |
-
2015
- 2015-08-20 CN CN201510513067.XA patent/CN105084435A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668686A (en) * | 2016-03-16 | 2016-06-15 | 安徽海德石油化工有限公司 | Washing liquor for refinery waste gas primary treatment |
| CN105668686B (en) * | 2016-03-16 | 2018-02-09 | 安徽海德石油化工有限公司 | Liquid is washed with water in a kind of refinery flares coagulation |
| CN105771327A (en) * | 2016-05-26 | 2016-07-20 | 句容宁武高新技术发展有限公司 | Compound demulsifying agent capable of improving demulsifying effect of polyether demulsifying agents |
| CN108314104A (en) * | 2018-03-16 | 2018-07-24 | 山东冬瑞高新技术开发有限公司 | A kind of sewage-treating agent and preparation method thereof |
| CN109179573A (en) * | 2018-11-15 | 2019-01-11 | 刘益波 | A kind of inorganic agent and preparation method thereof can be used for handling sanitary sewage |
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Application publication date: 20151125 |