CN1952052A - Dehydration demulsifier for crude oil produced liquid of polymer flooding of heavy oil reservoir - Google Patents
Dehydration demulsifier for crude oil produced liquid of polymer flooding of heavy oil reservoir Download PDFInfo
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- CN1952052A CN1952052A CN 200610113793 CN200610113793A CN1952052A CN 1952052 A CN1952052 A CN 1952052A CN 200610113793 CN200610113793 CN 200610113793 CN 200610113793 A CN200610113793 A CN 200610113793A CN 1952052 A CN1952052 A CN 1952052A
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- 239000010779 crude oil Substances 0.000 title claims abstract description 41
- 230000018044 dehydration Effects 0.000 title claims abstract description 20
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 title abstract description 9
- 229920000642 polymer Polymers 0.000 title abstract description 6
- 239000000295 fuel oil Substances 0.000 title abstract 4
- 238000002360 preparation method Methods 0.000 claims abstract description 41
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 54
- 239000013543 active substance Substances 0.000 claims description 36
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 27
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 24
- 229910001220 stainless steel Inorganic materials 0.000 claims description 15
- 239000010935 stainless steel Substances 0.000 claims description 15
- 238000010792 warming Methods 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 14
- 239000002253 acid Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 13
- 239000001257 hydrogen Substances 0.000 claims description 13
- 229910052739 hydrogen Inorganic materials 0.000 claims description 13
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 13
- 239000002994 raw material Substances 0.000 claims description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims description 12
- 230000001846 repelling effect Effects 0.000 claims description 12
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 10
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical compound CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 claims description 9
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 9
- 239000005011 phenolic resin Substances 0.000 claims description 9
- 229920001568 phenolic resin Polymers 0.000 claims description 9
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 claims description 9
- 239000003999 initiator Substances 0.000 claims description 6
- -1 octyl sulfuryl amine Chemical class 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 150000002170 ethers Chemical class 0.000 claims description 5
- 210000003298 dental enamel Anatomy 0.000 claims description 3
- 238000009472 formulation Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 16
- 239000010865 sewage Substances 0.000 abstract description 11
- 239000004094 surface-active agent Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 229940051841 polyoxyethylene ether Drugs 0.000 abstract 1
- 229920000056 polyoxyethylene ether Polymers 0.000 abstract 1
- CCEKAJIANROZEO-UHFFFAOYSA-N sulfluramid Chemical compound CCNS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F CCEKAJIANROZEO-UHFFFAOYSA-N 0.000 abstract 1
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 16
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 8
- 239000000839 emulsion Substances 0.000 description 8
- 239000001294 propane Substances 0.000 description 8
- 238000000605 extraction Methods 0.000 description 6
- 150000002148 esters Chemical class 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
- Epoxy Compounds (AREA)
Abstract
A produced liquid dehydration demulsifier after heavy oil reservoir polymer flooding and a preparation method thereof. The method is characterized in that: firstly, respectively preparing two surfactants, then sequentially placing the two surfactants and N-ethyl perfluorooctyl sulfonamide polyoxyethylene ether in a reaction kettle to react for a period of time at a certain temperature to obtain a dry agent, and finally placing the dry agent in a mixing kettle to slowly drip water to obtain the demulsifier for dewatering the polymer flooding crude oil of the heavy oil reservoir. The demulsifying and dehydrating effects of the demulsifier are superior to those of the conventional demulsifier. In the dehydration of crude oil, the dosage of a dehydration demulsifier of a crude oil production liquid of polymer flooding of a heavy oil reservoir is small, the water content of the dehydrated crude oil is less than 0.2 percent, and the oil content of sewage is less than 50 mg/l. The water content of the crude oil after dehydration meets the requirement; the oil content in the sewage is reduced from more than 20 percent to less than 50 mg/l.
Description
Affiliated technical field
The present invention relates to a kind of heavy crude reservoir produced fluid dewatering demulsifier for accumulating and repelling crude oil, carry out the preparation method of the poly-repelling crude oil of heavy crude reservoir with emulsion splitter.
Background technology
Reach outer defeated branded oil standard after solving dehydrating of crude oil, it is up to standard to take off back sewage, reduces the breaking emulsion and dewatering cost of crude oil, and the technician has developed numerous species type emulsion splitter at the site technology problem.Solved many crude oil demulsification dehydration problems, but the technical problem that has is out in the cold.Such as, after heavy crude reservoir carried out polymer flooding, the extraction liquid that contains polymkeric substance was behind breaking emulsion and dewatering, and oleaginousness is very high in the sewage, should how to solve.
For improving the latter period of oilfield development reservoir coverage, can obtain some workable reserve, improve oil recovery factor.The production technique personnel have carried out the polymer flooding mode to some heavy crude reservoirs.Caused like this in the extraction liquid and contained polymkeric substance, cause using the poly-flooding produced liquid demulsifying agent for dehydration in conventional oil field to handle the extraction fluid dewatering after, moisture height in the isolated crude oil, oil-containing is very high in the sewage.The poly-back extraction fluid dewatering that drives in conventional oil field uses the emulsion splitter dosage at 1000mg/l, and dehydration temperaturre is in the time of 60 ℃, and dehydration rate has only 30%, causes extraction liquid to take off back crude oil water containing height, and sewage with oil is up to more than 20%.Though take off through electricity and can make the moisture 1.0% corrected oil standard that reaches of dehydrating of crude oil.But not only dehydrating of crude oil processing costs height simultaneously, has caused very big difficulty to sewage disposal like this.
Summary of the invention
The objective of the invention is: a kind of heavy crude reservoir produced fluid dewatering demulsifier for accumulating and repelling crude oil and preparation method thereof is provided, make a kind of heavy crude reservoir produced fluid dewatering demulsifier for accumulating and repelling crude oil, realize that the poly-repelling crude oil dehydration of heavy crude reservoir water content is less than 0.5% branded oil standard; And oleaginousness reaches emission standard simultaneously in the sewage.Overcome the poly-flooding produced liquid demulsifying agent for dehydration in conventional oil field and can only realize the moisture 1.0% corrected oil standard that reaches of dehydrating of crude oil, oil content of wastewater does not reach the problem of emission standard.
The technical scheme that the present invention is taked for its technical problem of solution is:
The heavy crude reservoir produced fluid dewatering demulsifier for accumulating and repelling crude oil, formulation weight per-cent is: formulation weight per-cent is: do agent C, 45%～65%; Water, 35～55%.Wherein:
The raw material weight per-cent of A tensio-active agent is: intermediate PEA, 20～70%; Sodium hydroxide, 0.1～0.25%; Oxyethane, 25～65%, epoxy chloropropane 1～5%.Wherein: the raw material weight per-cent of preparation intermediate PEA is: tetraethylene pentamine, 20-75%; Propylene oxide, 25-80%.
The raw material weight per-cent of B tensio-active agent is: intermediate PEB, 30～70%; Sodium hydroxide, 0.1～0.25%; Oxyethane, 25～60%, toluene two different hydrogen acid ethers 2～8%.The raw material weight per-cent that wherein prepares intermediate PEB is: phenolic resin, 15-75%; Propylene oxide, 25-85%.
The raw material weight per-cent of doing agent C is: A tensio-active agent 30～70%; B tensio-active agent 25～65%; N-ethyl perfluorinated octyl sulfuryl amine Soxylat A 25-7 0.5～2%.
The preparation method of heavy crude reservoir produced fluid dewatering demulsifier for accumulating and repelling crude oil of the present invention be divided into following four the step finish:
One, the preparation of A tensio-active agent
At first, with the weight percent of preparation intermediate PEA is that the tetraethylene pentamine of 20-75% is that initiator places stainless steel cauldron, start stirring, be warming up to 120 ± 5 ℃, find time, fill nitrogen, slowly dripping weight ratio with 1～2 hour is the propylene oxide of 25-80%.Reaction pressure is controlled at 0.15～0.45MPa, dropwises, and after question response still internal pressure returned zero, cooling discharge obtained intermediate PEA.
With the weight ratio of preparation A tensio-active agent is that 20～70% intermediate PEA and weight ratio are that 0.1%～0.25% sodium hydroxide places stainless steel cauldron, start stirring, be warming up to 130 ± 5 ℃, find time, fill nitrogen, with slowly dripping weight ratio in 1～2 hour is 25～65% oxyethane, be 1～5% epoxy chloropropane with slowly dripping weight ratio in 0.2～0.6 hour again, reaction pressure is controlled at 0.2～0.5MPa, dropwise, after question response still internal pressure returned zero, cooling discharge obtained the A tensio-active agent.
Two, the preparation of B tensio-active agent
At first, be that the phenolic resin initiator of 15-75% places stainless steel cauldron with the weight ratio of preparation intermediate PEB, start stirrings, be warming up to 120 ± 5 ℃, find time, fill nitrogen, be the propylene oxide of 25-85% with 1～2 hour slow dropping weight ratio.Reaction pressure is controlled at 0.2～0.5MPa, dropwises, and after question response still internal pressure returned zero, cooling discharge obtained intermediate PEB.
With the weight ratio of preparation B tensio-active agent is that 30～70% intermediate PEB and weight ratio are that 0.1～0.25% sodium hydroxide places stainless steel cauldron, start stirring, be warming up to 130 ± 5 ℃, finding time, fill nitrogen, is 25～60% oxyethane with slowly dripping weight ratio in 1～2 hour.Slowly dripped weight ratio again in 0.2～0.6 hour and be 2～8% toluene two different hydrogen acid ethers.Reaction pressure is controlled at 0.3～0.5MPa, dropwises, and question response still internal pressure is reduced to the room temperature discharging and obtained the B tensio-active agent after returning zero.
Three, do the preparation of agent C
With the weight ratio of preparation is that 30～70% A tensio-active agent, 25～65% B tensio-active agent, 0.5～2% N-ethyl perfluorinated octyl sulfuryl amine Soxylat A 25-7 place stainless steel cauldron successively, start stirring, be warming up to 80 ± 5 ℃, reaction pressure is controlled at 0.1～0.25MPa, stir after 3～4 hours, cooling discharge obtains doing agent C.
Four, the preparation of the poly-repelling crude oil demulsifying agent for dehydration of heavy crude reservoir
At last, with the weight ratio of the poly-repelling crude oil demulsifying agent for dehydration of preparation heavy crude reservoir is 45%～65% dried agent C, place the enamel still that is mixed, start stirring, after slowly the dropping weight ratio was 55～35% water with 0.5～1 hour, stir 30～60min, discharging obtains the poly-repelling crude oil demulsifying agent for dehydration of heavy crude reservoir.
Beneficial effect of the present invention: raw material and preparation technology that the poly-repelling crude oil demulsifying agent for dehydration of heavy crude reservoir of the present invention adopts, different with existing emulsion splitter, its breaking emulsion and dewatering effect obviously is better than existing emulsion splitter.In the dehydrating of crude oil rules, heavy crude reservoir produced fluid dewatering demulsifier for accumulating and repelling crude oil dosage is few, and it is moisture less than 0.2% that crude oil takes off the back, and sewage with oil is less than 50mg/l.Make crude oil take off moisture the meeting the requirements in back, and oleaginousness is reduced to below the 50mg/l in the sewage from more than 20%.
Embodiment
In the present embodiment, the raw material that is adopted is technical grade, adds than all being weight percentage.
Embodiment 1
One, the preparation of A tensio-active agent
At first, be that 45% tetraethylene pentamine is that initiator places stainless steel cauldron with the weight percent of preparation intermediate PEA, start stirrings, be warming up to 120 ± 5 ℃, find time, fill nitrogen, with 1.5 hours slow dropping weight ratios 55% propylene oxide.Reaction pressure is controlled at 0.15～0.45MPa, dropwises, and after question response still internal pressure returned zero, cooling discharge obtained intermediate PEA.
With the weight ratio of preparation A tensio-active agent is that 65% intermediate PEA and weight ratio are that 0.15% sodium hydroxide places stainless steel cauldron, start stirring, be warming up to 130 ± 5 ℃, find time, fill nitrogen, with slowly dripping weight ratio in 1.2 hours is 32.85% oxyethane, be 2% epoxy chloropropane with slowly dripping weight ratio in 0.3 hour again, reaction pressure is controlled at 0.2～0.5MPa, dropwises, after question response still internal pressure returned zero, cooling discharge obtained the A tensio-active agent.
Two, the preparation of B tensio-active agent
At first, be that 55% phenolic resin initiator places stainless steel cauldron with the weight ratio of preparation intermediate PEB, start stirrings, be warming up to 120 ± 5 ℃, find time, fill nitrogen, with 1.2 hours slow dropping weight ratios 45% propylene oxide.Reaction pressure is controlled at 0.2～0.5MPa, dropwises, and after question response still internal pressure returned zero, cooling discharge obtained intermediate PEB.
With the weight ratio of preparation B tensio-active agent is that 70% intermediate PEB and weight ratio are that 0.15% sodium hydroxide places stainless steel cauldron, start stirring, be warming up to 130 ± 5 ℃, finding time, fill nitrogen, is 25.85% oxyethane with slowly dripping weight ratio in 1.5 hours.Slowly dripped weight ratio again in 0.4 hour and be 4% toluene two different hydrogen acid ethers.Reaction pressure is controlled at 0.3～0.5MPa, dropwises, and after question response still internal pressure returned zero, cooling discharge obtained the B tensio-active agent.
Three, do the preparation of agent C
With the weight ratio of preparation is that 50% A tensio-active agent, 49% B tensio-active agent, 1% N-ethyl perfluorinated octyl sulfuryl amine Soxylat A 25-7 place stainless steel cauldron successively, start stirring, be warming up to 80 ± 5 ℃, reaction pressure is controlled at 0.1～0.25MPa, stir after 3 hours, cooling discharge obtains doing agent C.
Four, the preparation of the poly-repelling crude oil demulsifying agent for dehydration of heavy crude reservoir
The dried agent C of 900kg is placed the 2000L enamel still that is mixed, starts stirring, slowly dripped the 900kg softening water with 0.5 hour after, stir 30～60min, discharging obtains the poly-repelling crude oil demulsifying agent for dehydration 1800kg of heavy crude reservoir.
Field experiment in 2006 contains the Shen Nan oil field of polyacrylamide 158.5mg/l in extraction liquid, dosage is when 80～100 mg/l, and it is moisture less than 0.2% that crude oil takes off the back, and sewage with oil is less than 50mg/l.
Embodiment 2,3,4
It is substantially the same manner as Example 1 that the heavy crude reservoir produced fluid dewatering demulsifier for accumulating and repelling crude oil prepares the preparation process of embodiment 2,3,4, and difference is a prescription.The prescription of the embodiment 1-4 of heavy crude reservoir produced fluid dewatering demulsifier for accumulating and repelling crude oil preparation adopts the tabulation mode to represent, is listed as follows:
Table 1: the preparation prescription of heavy crude reservoir produced fluid dewatering demulsifier for accumulating and repelling crude oil
| Project | Do agent C weight ratio % | Water weight ratio % |
| Embodiment 1 | 50 | 50 |
| Embodiment 2 | 43 | 57 |
| Embodiment 3 | 52 | 48 |
| Embodiment 4 | 62 | 38 |
Table 2: the prescription of doing agent C
| Project | The A tensio-active agent | The B tensio-active agent | N-ethyl perfluorinated octyl sulfuryl amine Soxylat A 25-7 |
| Embodiment 1 | 50 | 49 | 1 |
| Embodiment 2 | 45.3 | 58.4 | 0.8 |
| Embodiment 3 | 53.5 | 45.0 | 1.5 |
| Embodiment 4 | 60.3 | 38 | 1.7 |
Table 3: the prescription of preparation Surfactant
| Project | The A tensio-active agent | The B tensio-active agent |
| Embodiment 1 | PEA proportioning: 45% TEPA+55% expoxy propane A proportion of surfactant: 65%PEA+0.15% NaOH+32.85% oxirane+2% epoxychloropropane | PEB proportioning: 55% phenolic resin+45% expoxy propane B proportion of surfactant: 70%PEB+0.15% NaOH+25.85% oxirane+4% toluene, two different hydrogen acid ether (hydrogen acid ester)s |
| Embodiment 2 | PEA proportioning: 65% TEPA+35% expoxy propane A proportion of surfactant: 54%PEA+0.15% NaOH+42.65% oxirane+3.2% epoxychloropropane | PEB proportioning: 64.5% phenolic resin+35.5% expoxy propane B proportion of surfactant: 64.2%PEB+0.16% NaOH+30.64% oxirane+5% toluene, two different hydrogen acid ether (hydrogen acid ester)s |
| Embodiment 3 | PEA proportioning: 37.5% TEPA+62.5% expoxy propane A proportion of surfactant: 47.5%PEA+0.18% NaOH+48.82% oxirane+3.5% epoxychloropropane | PEB proportioning: 44.8% phenolic resin+55.2% expoxy propane B proportion of surfactant: 51.3%PEB+0.18% NaOH+43.52% oxirane+5% toluene, two different hydrogen acid ether (hydrogen acid ester)s |
| Embodiment 4 | PEA proportioning: 28.5% TEPA+71.5% expoxy propane A proportion of surfactant: 31.5%PEA+0.2% NaOH+64.3% oxirane+4% epoxychloropropane | PEB proportioning: 35.8% phenolic resin+64.2% expoxy propane B proportion of surfactant: 42.5%PEB+0.2% NaOH+51.3% oxirane+6% toluene, two different hydrogen acid ether (hydrogen acid ester)s |
Claims (2)
1, a kind of heavy crude reservoir produced fluid dewatering demulsifier for accumulating and repelling crude oil, it is characterized in that: formulation weight per-cent is: do agent C, 45～65%; Water, 35～55%, wherein:
The raw material weight per-cent of doing agent C is: A tensio-active agent 30～70%; B tensio-active agent 25～65%; N-ethyl perfluorinated octyl sulfuryl amine Soxylat A 25-7 0.5～2%;
The raw material weight per-cent of A tensio-active agent is: intermediate PEA, 20～70%; Sodium hydroxide, 0.1～0.25%; Oxyethane, 25～65%; Epoxy chloropropane, 1～5%, wherein: the raw material weight per-cent of preparation intermediate PEA is: tetraethylene pentamine, 20-75%; Propylene oxide, 25-80%;
The raw material weight per-cent of B tensio-active agent is: intermediate PEB, 30～70%; Sodium hydroxide, 0.1～0.25%; Oxyethane, 25～60%, toluene two different hydrogen acid ethers 2～8%, the raw material weight per-cent that wherein prepares intermediate PEB is: phenolic resin, 15-75%; Propylene oxide, 25-85%.
2, a kind of preparation method of produced fluid dewatering demulsifier for accumulating and repelling crude oil is characterized in that: by the raw material weight per-cent batching of prescription, being divided into following four steps carries out:
One, the preparation of A tensio-active agent
At first, with the weight percent of preparation intermediate PEA is that the tetraethylene pentamine of 20-75% is that initiator places stainless steel cauldron, start stirring, be warming up to 120 ± 5 ℃, find time, fill nitrogen, slowly dripping weight ratio with 1～2 hour is the propylene oxide of 25-80%, and reaction pressure is controlled at 0.15～0.45MPa, dropwises, after question response still internal pressure returned zero, cooling discharge obtained intermediate PEA;
With the weight ratio of preparation A tensio-active agent is that 20～70% intermediate PEA and weight ratio are that 0.1～0.25% sodium hydroxide places stainless steel cauldron, start stirring, be warming up to 130 ± 5 ℃, find time, fill nitrogen, with slowly dripping weight ratio in 1～2 hour is 25～65% oxyethane, be 1～5% epoxy chloropropane with slowly dripping weight ratio in 0.2～0.6 hour again, reaction pressure is controlled at 0.2～0.5MPa, dropwise, after question response still internal pressure returned zero, cooling discharge obtained the A tensio-active agent;
Two, the preparation of B tensio-active agent
At first, with the weight ratio of preparation intermediate PEB is that the phenolic resin initiator of 15-75% places stainless steel cauldron, start stirring, be warming up to 120 ± 5 ℃, find time, fill nitrogen, slowly dripping weight ratio with 1～2 hour is the propylene oxide of 25-85%, and reaction pressure is controlled at 0.2～0.5MPa, dropwises, after question response still internal pressure returned zero, cooling discharge obtained intermediate PEB;
With the weight ratio of preparation B tensio-active agent is that 30～70% intermediate PEB and weight ratio are that 0.1～0.25% sodium hydroxide places stainless steel cauldron, start stirring, be warming up to 130 ± 5 ℃, find time, fill nitrogen, with slowly dripping weight ratio in 1～2 hour is 25～60% oxyethane, slowly dripped weight ratio again in 0.2～0.6 hour and be 2～8% toluene two different hydrogen acid ethers, reaction pressure is controlled at 0.3～0.5MPa, dropwise, question response still internal pressure is reduced to the room temperature discharging and is obtained the B tensio-active agent after returning zero;
Three, do the preparation of agent C
With the weight ratio of preparation is that 30～70% A tensio-active agent, 25～65% B tensio-active agent, 0.5～2% N-ethyl perfluorinated octyl sulfuryl amine Soxylat A 25-7 place stainless steel cauldron successively, start stirring, be warming up to 80 ± 5 ℃, reaction pressure is controlled at 0.1～0.25MPa, stir after 3～4 hours, cooling discharge obtains doing agent C;
Four, the preparation of the poly-repelling crude oil demulsifying agent for dehydration of heavy crude reservoir
At last, with the weight ratio of the poly-repelling crude oil demulsifying agent for dehydration of preparation heavy crude reservoir is 45～65% dried agent C, place the enamel still that is mixed, start stirring, after slowly the dropping weight ratio was 35～55% water with 0.5～1 hour, stir 30～60min, discharging obtains the poly-repelling crude oil demulsifying agent for dehydration of heavy crude reservoir.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006101137933A CN100513525C (en) | 2006-10-17 | 2006-10-17 | Dehydration demulsifier for crude oil produced liquid of polymer flooding of heavy oil reservoir |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006101137933A CN100513525C (en) | 2006-10-17 | 2006-10-17 | Dehydration demulsifier for crude oil produced liquid of polymer flooding of heavy oil reservoir |
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| CN1952052A true CN1952052A (en) | 2007-04-25 |
| CN100513525C CN100513525C (en) | 2009-07-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373077A (en) * | 2010-08-25 | 2012-03-14 | 中国石油天然气股份有限公司 | Functional demulsifier for extra-thick oil and preparation and application thereof |
| CN101328429B (en) * | 2008-07-24 | 2012-08-08 | 中国石油天然气股份有限公司 | Demulsifier for dehydrating heavy viscous oil with high sulfur content |
| CN108165246A (en) * | 2016-12-08 | 2018-06-15 | 中国石油天然气股份有限公司 | Oil-water well protection liquid and preparation method thereof |
| CN111234200A (en) * | 2020-03-23 | 2020-06-05 | 东北石油大学 | Preparation method of modified perfluoro alcohol polyoxyethylene ether heavy oil demulsifier |
-
2006
- 2006-10-17 CN CNB2006101137933A patent/CN100513525C/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328429B (en) * | 2008-07-24 | 2012-08-08 | 中国石油天然气股份有限公司 | Demulsifier for dehydrating heavy viscous oil with high sulfur content |
| CN102373077A (en) * | 2010-08-25 | 2012-03-14 | 中国石油天然气股份有限公司 | Functional demulsifier for extra-thick oil and preparation and application thereof |
| CN102373077B (en) * | 2010-08-25 | 2014-01-15 | 中国石油天然气股份有限公司 | Functional demulsifier for extra-thick oil and preparation and application thereof |
| CN108165246A (en) * | 2016-12-08 | 2018-06-15 | 中国石油天然气股份有限公司 | Oil-water well protection liquid and preparation method thereof |
| CN111234200A (en) * | 2020-03-23 | 2020-06-05 | 东北石油大学 | Preparation method of modified perfluoro alcohol polyoxyethylene ether heavy oil demulsifier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100513525C (en) | 2009-07-15 |
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