CN102899070A - Binary flooding produced liquid comprehensive treatment agent and preparation method - Google Patents
Binary flooding produced liquid comprehensive treatment agent and preparation method Download PDFInfo
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- CN102899070A CN102899070A CN2012104236828A CN201210423682A CN102899070A CN 102899070 A CN102899070 A CN 102899070A CN 2012104236828 A CN2012104236828 A CN 2012104236828A CN 201210423682 A CN201210423682 A CN 201210423682A CN 102899070 A CN102899070 A CN 102899070A
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Abstract
The invention relates to a binary flooding produced liquid comprehensive treatment agent and a preparation method. The binary flooding produced liquid comprehensive treatment agent comprises a demulsifier, a water purifying agent and a comprehensive treatment agent compounded by the demulsifier and the water purifying agent. The preparation method comprises the following steps that the demulsifier and the water purifying agent are firstly synthesized and then are compounded to form the binary flooding produced liquid comprehensive treatment agent. The demulsification problem of binary flooding produced W/O and O/W emulsion in oilfield is successfully solved, the demulsification effect is obvious, the transported sewage and the transported crude oil reach the required index, and polymer-bearing sludge is not generated in the demulsification process, thereby laying the foundation for polymer-bearing crude oil dehydration, standard reaching of polymer-bearing sewage treatment and wide use of polymer flooding technology.
Description
Technical field
The present invention relates to a kind of oil field binary flooding produced liquid comprehensive treatment agent and preparation method.
Background technology
Maturing field mostly is in high moisture or ultra-high water cut stage at present on the Chinese Continental, and the conventional waterflood development technique is difficult to slow down production rate decline.Chemical combined flooding is one of main method that increases substantially oil recovery factor.Wherein applying of binary combination flooding obtained obvious oil increasing effect.Binary combination flooding refers to by add the viscosity that polymkeric substance increases displacing fluid in water, to improve sweep efficiency; Rely on simultaneously effect reduction oil water interfacial tension, wettability change, the emulsified crude oil of tensio-active agent to improve oil displacement efficiency.Its essence is to give full play to the polymer viscosified effect, changes the profit mobility ratio, and to enlarge swept volume, what the mating surface promoting agent changed water-oil interface character simultaneously is used for improving displacement sweep efficiency, thereby realizes increasing substantially a kind of combination flooding technology of recovery ratio.Owing to contain simultaneously polymkeric substance and tensio-active agent in the oil field mining liquid when using binary combination flooding, W/O, the O/W of emulsification type complexity and the mixed dispersion of multiple emulsification have been formed, more increased the stability of Produced Liquid, more difficult when causing oily water separation and sewage aftertreatment to use polymer flooding.
Process at present the binary flooding produced liquid and use conventional emulsion splitter in petrol station, the breaking emulsion and dewatering effect is undesirable, the employing flocculation technique of disposing of sewage, by water conditioner and interpolymer interaction, the floc sedimentation of oil droplet and suspended particle is carried in formation, reach the purpose of water purification oil removing, can affect dehydrating of crude oil but the floc sedimentation come-up enters waste oil recovery, sinking can form and contain poly-greasy filth.
Joint station of Gudong field comes liquid to contain the binary flooding produced liquid, and stability is stronger.The upper used emulsion splitter of standing is processed binary and is driven extraction crude oil, and dehydrating effect is bad, and triphase separator divides oily moisture height, and outer oil transportation is moisture to exceed standard; Adopt simultaneously flocculation technique to dispose of sewage, generation contains poly-greasy filth (30m3/d) and ageing oil, causes waste oil recovery to affect dehydrating of crude oil, and greasy filth stops up the problems such as gathering system.For the binary flooding produced liquid, developed applicable comprehensive treatment agent, effective guarantee outer oil transportation water up to standard.
Summary of the invention
The object of the invention provides a kind of binary flooding produced liquid comprehensive treatment agent and preparation method, can take into account dehydrating of crude oil and sewage degrease.In the treating processes, dehydrating of crude oil speed is fast, and dehydration rate is high, and sewage disposal need not add the flocculation water purification agent, and the sewage degrease rate is high, and outer oil transportation water is all up to standard.
Technical scheme of the present invention is implemented in the following manner:
The present invention is synthetic emulsion splitter and water purification agent first, again emulsion splitter and water purification agent is synthesized binary flooding produced liquid comprehensive treatment agent; Synthesis step is as follows:
A: emulsion splitter is synthetic: take the macromole phenol-amine resin as initiator, basic cpd is catalyzer, obtain the propoxylation polyether compound with propylene oxide reaction first, under the alkaline catalysts effect, carry out addition reaction with oxyethane again, the intermediate that forms is priority and propylene oxide again, oxyethane reacts successively, carries out polyreaction with propylene oxide again, synthetic emulsion splitter;
Basic cpd is potassium hydroxide, in the first step reaction, and macromole phenol ammonia resin: basic cpd: propylene oxide=20～30:0.05～0.15:80～120; In the second step reaction, propoxylation polyether compound: basic cpd: oxyethane=25～35:0.1～0.3:70～110; In the three-step reaction, intermediate: basic cpd: propylene oxide=20～40:0.05～0.15:80～120; In the four-step reaction, the intermediate in the 3rd step: basic cpd: oxyethane=15～35:0.1～0.2:70～120; In the reaction of the 5th step, the intermediate in the 4th step: basic cpd: propylene oxide=20～30:0.05～0.15:80～140; Above proportioning is the massfraction ratio;
B: water purification agent is synthetic: take propylene glycol as initiator, basic cpd is catalyzer, obtains the propoxylation polyether compound with propylene oxide reaction first; React under the alkaline catalysts effect with propylene oxide again and obtain polyether compound; And with it under the alkaline catalysts effect, obtain polyoxyethylene polyoxypropylene block copolymer with reacting ethylene oxide; Make chainextender with MALEIC ANHYDRIDE again, take tosic acid as catalyzer, carry out the chain extension modification and obtain water purification agent;
In the above-mentioned water purification agent building-up reactions, in the first step reaction, initiator: basic cpd: propylene oxide=15～20:0.05～0.15:110～160; In the second step reaction, the intermediate of the first step, basic cpd, propylene oxide=15～20:0.05～0.25:110～160; In the three-step reaction, the intermediate of second step, basic cpd, oxyethane=10～20:0.1～0.25:80～120; In the four-step reaction, the intermediate in the 3rd step: catalyzer: chainextender=50～80:0.05～0.08:40～90; Above proportioning is the massfraction ratio;
C, emulsion splitter and water purification agent are according to ratio of quality and the number of copies 1:(1～10) carry out compositely, obtain GD-1 structural synthesis treatment agent.
The preparation method of emulsion splitter and water purification agent:
A kind of preparation method of emulsion splitter is emulsion splitter claimed in claim 1, and its preparation method is as follows:
(1) massfraction of macromole phenol-amine resin 20-30 and the massfraction of potassium hydroxide 0.05-0.15 are put into reactor, kettle is evacuated to-0.08Mpa, be warming up to 100～140 ℃ of temperature of reaction, slowly pass into simultaneously the massfraction of propylene oxide 80-120, pressure constantly rises in the still, and control pressure is at 0.3～0.4MPa, reaction times is 6～8h, to the propylene oxide complete reaction, pressure finishes to negative pressure in the still, makes the propoxylation polyether compound.
(2) product propoxylation polyether compound 25-35 massfraction and the potassium hydroxide 0.1-0.3 massfraction of (1) are put into reactor, kettle is evacuated to-0.08Mpa, be warming up to 100～120 ℃ of temperature of reaction,, slowly passing into oxyethane 70-110 massfraction simultaneously, pressure constantly rises in the still, control pressure is at 0.2～0.3MPa, reaction times is 3～5h, and to the oxyethane complete reaction, pressure finishes to negative pressure in the still.
(3) massfraction of the product intermediate 20-40 of (2) and the massfraction of potassium hydroxide 0.05-0.15 are added in the reactor, kettle is evacuated to-0.08Mpa, be warming up to 100～140 ℃ of temperature of reaction, slowly pass into simultaneously the massfraction of propylene oxide 80-120, pressure-controlling is at 0.3～0.4MPa in the still, and the reaction times is 6～8h, to the propylene oxide complete reaction, pressure finishes to negative pressure in the still, makes intermediate;
(4) massfraction of the intermediate 15-35 of (3) and the massfraction of potassium hydroxide 0.1-0.2 are added in the reactor, kettle is evacuated to-0.08Mpa, be warming up to 100～140 ℃ of temperature of reaction, slowly pass into simultaneously the massfraction of oxyethane 70-120, control pressure is at 0.3～0.4MPa, and the reaction times is 6～8h, to the oxyethane complete reaction, pressure finishes to negative pressure in the still, makes intermediate;
(5) the intermediate 15-35 massfraction of (4) and the massfraction of potassium hydroxide 0.1-0.2 are added in the reactor, kettle is evacuated to-0.08Mpa, be warming up to 100～140 ℃ of temperature of reaction, slowly pass into simultaneously the massfraction of propylene oxide 80-140, control pressure is at 0.3～0.4MPa, and the reaction times is 6～8h, to the propylene oxide complete reaction, pressure finishes to negative pressure in the still, makes emulsion splitter;
A kind of preparation method of water purification agent is water purification agent claimed in claim 1, and its preparation method is as follows:
(1) propylene glycol 15-20 massfraction and potassium hydroxide 0.05-0.15 massfraction are added reactor, kettle is evacuated to-0.08Mpa, starting heats up stirs, temperature of reaction is controlled at 100～130 ℃, begin to pass into propylene oxide 110-160 massfraction, control pressure is at 0.3～0.4MPa, and reaction 4～5 h obtain intermediate;
(2) intermediate 15-20 massfraction and the potassium hydroxide 0.05-0.15 massfraction with (1) adds reactor, kettle is evacuated to-0.08Mpa, starting heats up stirs, temperature of reaction is controlled at 100～130 ℃, begin to pass into propylene oxide 110-160 massfraction, control pressure is at 0.3～0.4MPa, and reaction 4～5 h obtain intermediate;
(3) intermediate 10-20 massfraction and the potassium hydroxide 0.0-0.25 massfraction with (2) joins in the autoclave, kettle is evacuated to-0.08Mpa, starting heats up stirs, temperature of reaction is controlled at 100～120 ℃, again 80-120 oxyethane is added in the reactor, control pressure is at 0.3～0.4MPa, and reaction 3～4 h get the intermediate polyoxyethylene polyoxypropylene block copolymer;
(4) with intermediate 50-80 massfraction MALEIC ANHYDRIDE 0.5-0.8 massfraction and the tosic acid 40-90 massfraction of (3), add in the reactor, behind 120～140 ℃ temperature range internal reflux 2 h, carry out Depressor response, its vacuum degree control is between 0. 08～0. 09 MPa, temperature of reaction is controlled between 140～160 ℃, and reaction is finished and obtained water purification agent.
Comprehensive treatment agent preparation, with the emulsion splitter of above-mentioned preparation and water purification agent by massfraction than 1:(1-10) carry out the composite GD-1 structural synthesis treatment agent that obtains.
The solution of success of the present invention the oil field binary breakdown of emulsion problem of driving W/O and the O/W milk sap of extraction, demulsification is remarkable, make outer defeated sewage and outer output oil reach set quota, and in the breakdown of emulsion process, do not produce and contain poly-greasy dirt, process employing polymer displacement of reservoir oil tech up to standard and extensive and lay a good foundation for containing poly-dehydrating of crude oil and polymer-bearing waste-water.
Embodiment
For further disclosing technical scheme of the present invention, elaborate below by specific embodiment:
The present invention is synthetic emulsion splitter and water purification agent first, again emulsion splitter and water purification agent is synthesized binary flooding produced liquid comprehensive treatment agent; Synthesis step is as follows:
A: emulsion splitter is synthetic: take the macromole phenol-amine resin as initiator, basic cpd is catalyzer, obtain the propoxylation polyether compound with propylene oxide reaction first, under the alkaline catalysts effect, carry out addition reaction with oxyethane again, the intermediate that forms is priority and propylene oxide again, oxyethane reacts successively, carries out polyreaction with propylene oxide again, synthetic emulsion splitter;
Basic cpd is potassium hydroxide, in the first step reaction, and macromole phenol ammonia resin: basic cpd: propylene oxide=20～30:0.05～0.15:80～120; In the second step reaction, propoxylation polyether compound: basic cpd: oxyethane=25～35:0.1～0.3:70～110; In the three-step reaction, intermediate: basic cpd: propylene oxide=20～40:0.05～0.15:80～120; In the four-step reaction, the intermediate in the 3rd step: basic cpd: oxyethane=15～35:0.1～0.2:70～120; In the reaction of the 5th step, the intermediate in the 4th step: basic cpd: propylene oxide=20～30:0.05～0.15:80～140; Above proportioning is the massfraction ratio;
B: water purification agent is synthetic: take propylene glycol as initiator, basic cpd is catalyzer, obtains the propoxylation polyether compound with propylene oxide reaction first; React under the alkaline catalysts effect with propylene oxide again and obtain polyether compound; And with it under the alkaline catalysts effect, obtain polyoxyethylene polyoxypropylene block copolymer with reacting ethylene oxide; Make chainextender with MALEIC ANHYDRIDE again, take tosic acid as catalyzer, carry out the chain extension modification and obtain water purification agent;
In the above-mentioned water purification agent building-up reactions, in the first step reaction, initiator: basic cpd: propylene oxide=15～20:0.05～0.15:110～160; In the second step reaction, the intermediate of the first step, basic cpd, propylene oxide=15～20:0.05～0.25:110～160; In the three-step reaction, the intermediate of second step, basic cpd, oxyethane=10～20:0.1～0.25:80～120; In the four-step reaction, the intermediate in the 3rd step: catalyzer: chainextender=50～80:0.05～0.08:40～90; Above proportioning is the massfraction ratio;
C, emulsion splitter and water purification agent are according to ratio of quality and the number of copies 1:(1～10) carry out compositely, obtain GD-1 structural synthesis treatment agent.
Emulsion splitter prepares example (proportioning is the massfraction ratio)
(1) with 26 parts of macromole phenol-amine resin, 0.18 part in potassium hydroxide is put into reactor, kettle is evacuated to-0.08Mpa, be warming up to 100～140 ℃ of temperature of reaction, slowly pass into propylene oxide 88g simultaneously, pressure constantly rises in the still, control pressure is at 0.3～0.4MPa, reaction times is 6～8h, and to the propylene oxide complete reaction, pressure finishes to negative pressure in the still.
(2) with 21 parts of the products of (1), 0.08 part in potassium hydroxide is put into reactor, kettle is evacuated to-0.08Mpa, is warming up to 100～120 ℃ of temperature of reaction, slowly pass into simultaneously 82 parts in oxyethane, pressure constantly rises in the still, and control pressure is at 0.2～0.3mpa, and the reaction times is 3～5h, to the oxyethane complete reaction, pressure finishes to negative pressure in the still.
(3) with 26 parts of the products of (2), 0.12 part in potassium hydroxide, 75 parts of propylene oxide add reaction kettle for reaction, and process is with 1..
(4) with 25 parts of the products of (3), 0.1 part in potassium hydroxide, oxyethane, 95 parts, add reaction kettle for reaction, process is with (1).
(5) with 28 parts of the products of (4), 0.2 part in potassium hydroxide, propylene oxide, 90 parts, add reaction kettle for reaction, process obtains emulsion splitter with 1..
Water purification agent is synthetic: with 16 parts of propylene glycol, 0.08 part in potassium hydroxide, add reactor, kettle is evacuated to-0.08Mpa, and starting heats up stirs, and temperature of reaction is controlled at 100～130 ℃, begin to pass into 120 parts of propylene oxide, control pressure is at 0.3～0.4MPa, and reaction 4～5 h obtain intermediate product A.Press same synthetic method and the operation steps of intermediate product A, get 20 parts of A, 110 parts of propylene oxide, 0.1 part in potassium hydroxide intermediate product B..
Again 15 parts of B and 0.2 part of potassium hydroxide are joined in the autoclave, kettle is evacuated to-0.08Mpa, starting heats up stirs, temperature of reaction is controlled at 100～120 ℃, again 85 parts of oxyethane are added in the reactor, control pressure is at 0.3～0.4MPa, and reaction 3～4 h get product polyoxyethylene polyoxypropylene block copolymer C.
With 20 parts of C, 22 parts of MALEIC ANHYDRIDE, 0.02 part of tosic acid, add in the reactor, behind 120～140 ℃ temperature range internal reflux 2 h, carry out Depressor response, its vacuum degree control is between 0. 08～0. 09 MPa, and temperature of reaction is controlled between 140～160 ℃, and reaction is finished and obtained water purification agent.
The comprehensive treatment agent application example:
The comprehensive treatment agent of invention has been carried out by a definite date 36 days field application test at joint station of Gudong field, and eastern one comes liquid measure 48000m
3/ d, comprehensive water cut 96-97%.Process lonely eastern binary flooding produced liquid with GD-1 structural synthesis treatment agent, do not change the site technique flow process, the well array chemical feeding quantity is 35mg/L.Outer oil transportation is moisture to drop to 1.06% by 1.53% before the test, and outer defeated sewage with oil has dropped to 21mg/L, does not form to contain poly-greasy filth.The result shows, comprehensive treatment agent to binary drive W/O, O/W milk sap has good demulsification.
Claims (3)
1. a binary flooding produced liquid comprehensive treatment agent comprises the comprehensive treatment agent that emulsion splitter, water purification agent and emulsion splitter and water purification agent are composite, and synthetic emulsion splitter and water purification agent are re-dubbed binary flooding produced liquid comprehensive treatment agent with emulsion splitter and water purification agent more first; Synthesis step is as follows:
A: emulsion splitter is synthetic: take the macromole phenol-amine resin as initiator, basic cpd is catalyzer, obtain the propoxylation polyether compound with propylene oxide reaction first, under the alkaline catalysts effect, carry out addition reaction with oxyethane again, the intermediate that forms is priority and propylene oxide again, oxyethane reacts successively, carries out polyreaction with propylene oxide again, synthetic emulsion splitter;
Basic cpd is potassium hydroxide, in the first step reaction, and macromole phenol ammonia resin: basic cpd: propylene oxide=20～30:0.05～0.15:80～120; In the second step reaction, propoxylation polyether compound: basic cpd: oxyethane=25～35:0.1～0.3:70～110; In the three-step reaction, intermediate: basic cpd: propylene oxide=20～40:0.05～0.15:80～120; In the four-step reaction, the intermediate in the 3rd step: basic cpd: oxyethane=15～35:0.1～0.2:70～120; In the reaction of the 5th step, the intermediate in the 4th step: basic cpd: propylene oxide=20～30:0.05～0.15:80～140; Above proportioning is the massfraction ratio;
B: water purification agent is synthetic: take propylene glycol as initiator, basic cpd is catalyzer, obtains the propoxylation polyether compound with propylene oxide reaction first; React under the alkaline catalysts effect with propylene oxide again and obtain polyether compound; And with it under the alkaline catalysts effect, obtain polyoxyethylene polyoxypropylene block copolymer with reacting ethylene oxide; Make chainextender with MALEIC ANHYDRIDE again, take tosic acid as catalyzer, carry out the chain extension modification and obtain water purification agent;
In the above-mentioned water purification agent building-up reactions, in the first step reaction, initiator: basic cpd: propylene oxide=15～20:0.05～0.15:110～160; In the second step reaction, the intermediate of the first step, basic cpd, propylene oxide=15～20:0.05～0.25:110～160; In the three-step reaction, the intermediate of second step, basic cpd, oxyethane=10～20:0.1～0.25:80～120; In the four-step reaction, the intermediate in the 3rd step: catalyzer: chainextender=50～80:0.05～0.08:40～90; Above proportioning is the massfraction ratio;
C, emulsion splitter and water purification agent are according to ratio of quality and the number of copies 1:(1～10) carry out compositely, obtain GD-1 structural synthesis treatment agent.
2. the preparation method of an emulsion splitter is emulsion splitter claimed in claim 1, and its preparation method is as follows:
(1) massfraction of macromole phenol-amine resin 20-30 and the massfraction of potassium hydroxide 0.05-0.15 are put into reactor, kettle is evacuated to-0.08Mpa, be warming up to 100～140 ℃ of temperature of reaction, slowly pass into simultaneously the massfraction of propylene oxide 80-120, pressure constantly rises in the still, and control pressure is at 0.3～0.4MPa, reaction times is 6～8h, to the propylene oxide complete reaction, pressure finishes to negative pressure in the still, makes the propoxylation polyether compound;
(2) product propoxylation polyether compound 25-35 massfraction and the potassium hydroxide 0.1-0.3 massfraction of (1) are put into reactor, kettle is evacuated to-0.08Mpa, be warming up to 100～120 ℃ of temperature of reaction,, slowly passing into oxyethane 70-110 massfraction simultaneously, pressure constantly rises in the still, control pressure is at 0.2～0.3MPa, reaction times is 3～5h, and to the oxyethane complete reaction, pressure finishes to negative pressure in the still;
(3) massfraction of the product intermediate 20-40 of (2) and the massfraction of potassium hydroxide 0.05-0.15 are added in the reactor, kettle is evacuated to-0.08Mpa, be warming up to 100～140 ℃ of temperature of reaction, slowly pass into simultaneously the massfraction of propylene oxide 80-120, pressure-controlling is at 0.3～0.4Mpa in the still, and the reaction times is 6～8h, to the propylene oxide complete reaction, pressure finishes to negative pressure in the still, makes intermediate;
(4) massfraction of the intermediate 15-35 of (3) and the massfraction of potassium hydroxide 0.1-0.2 are added in the reactor, kettle is evacuated to-0.08Mpa, be warming up to 100～140 ℃ of temperature of reaction, slowly pass into simultaneously the massfraction of oxyethane 70-120, control pressure is at 0.3～0.4MPa, and the reaction times is 6～8h, to the oxyethane complete reaction, pressure finishes to negative pressure in the still, makes intermediate;
(5) the intermediate 15-35 massfraction of (4) and the massfraction of potassium hydroxide 0.1-0.2 are added in the reactor, kettle is evacuated to-0.08Mpa, be warming up to 100～140 ℃ of temperature of reaction, slowly pass into simultaneously the massfraction of propylene oxide 80-140, control pressure is at 0.3～0.4MPa, and the reaction times is 6～8h, to the propylene oxide complete reaction, pressure finishes to negative pressure in the still, makes emulsion splitter.
3. the preparation method of a water purification agent is water purification agent claimed in claim 1, and its preparation method is as follows:
(1) propylene glycol 15-20 massfraction and potassium hydroxide 0.05-0.15 massfraction are added reactor, kettle is evacuated to-0.08Mpa, starting heats up stirs, temperature of reaction is controlled at 100～130 ℃, begin to pass into propylene oxide 110-160 massfraction, control pressure is at 0.3～0.4MPa, and reaction 4～5 h obtain intermediate;
(2) intermediate 15-20 massfraction and the potassium hydroxide 0.05-0.15 massfraction with (1) adds reactor, kettle is evacuated to-0.08Mpa, starting heats up stirs, temperature of reaction is controlled at 100～130 ℃, begin to pass into propylene oxide 110-160 massfraction, control pressure is at 0.3～0.4MPa, and reaction 4～5 h obtain intermediate;
(3) intermediate 10-20 massfraction and the potassium hydroxide 0.0-0.25 massfraction with (2) joins in the autoclave, kettle is evacuated to-0.08Mpa, starting heats up stirs, temperature of reaction is controlled at 100～120 ℃, again 80-120 oxyethane is added in the reactor, control pressure is at 0.3～0.4MPa, and reaction 3～4 h get the intermediate polyoxyethylene polyoxypropylene block copolymer;
(4) with intermediate 50-80 massfraction MALEIC ANHYDRIDE 0.5-0.8 massfraction and the tosic acid 40-90 massfraction of (3), add in the reactor, behind 120～140 ℃ temperature range internal reflux 2 h, carry out Depressor response, its vacuum degree control is between 0. 08～0. 09 MPa, temperature of reaction is controlled between 140～160 ℃, and reaction is finished and obtained water purification agent.
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| CN111482176A (en) * | 2020-04-26 | 2020-08-04 | 江苏森茂能源发展有限公司 | Method for recycling oil sludge pyrolysis residues |
| CN111482176B (en) * | 2020-04-26 | 2023-04-25 | 江苏森茂能源发展有限公司 | Method for recycling pyrolysis residues of oil sludge |
| CN116286091A (en) * | 2023-05-22 | 2023-06-23 | 新疆科力新技术发展股份有限公司 | Oil field produced liquid composite treatment medicament and preparation method thereof |
| CN116286091B (en) * | 2023-05-22 | 2023-08-11 | 新疆科力新技术发展股份有限公司 | Oil field produced liquid composite treatment medicament and preparation method thereof |
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