CN106566677A - Online washing and descaling cleaning dispersant for oil field oil pipeline and preparation method for cleaning dispersant - Google Patents
Online washing and descaling cleaning dispersant for oil field oil pipeline and preparation method for cleaning dispersant Download PDFInfo
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- CN106566677A CN106566677A CN201610919691.4A CN201610919691A CN106566677A CN 106566677 A CN106566677 A CN 106566677A CN 201610919691 A CN201610919691 A CN 201610919691A CN 106566677 A CN106566677 A CN 106566677A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 82
- 239000002270 dispersing agent Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims description 5
- 238000005406 washing Methods 0.000 title abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 claims abstract description 16
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims abstract description 9
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 8
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 8
- 235000019198 oils Nutrition 0.000 claims description 53
- 238000000605 extraction Methods 0.000 claims description 7
- 229960004275 glycolic acid Drugs 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- PPASLZSBLFJQEF-RKJRWTFHSA-M sodium erythorbate Chemical compound [Na+].OC[C@@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RKJRWTFHSA-M 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 235000019476 oil-water mixture Nutrition 0.000 claims description 5
- 239000000470 constituent Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 230000002000 scavenging effect Effects 0.000 claims description 4
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical compound [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 2
- 229910052708 sodium Inorganic materials 0.000 claims 2
- 239000011734 sodium Substances 0.000 claims 2
- 150000002191 fatty alcohols Chemical class 0.000 claims 1
- 229940088594 vitamin Drugs 0.000 claims 1
- 229930003231 vitamin Natural products 0.000 claims 1
- 235000013343 vitamin Nutrition 0.000 claims 1
- 239000011782 vitamin Substances 0.000 claims 1
- 150000003722 vitamin derivatives Chemical class 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 11
- 238000005260 corrosion Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 11
- 239000006185 dispersion Substances 0.000 abstract description 4
- 230000005764 inhibitory process Effects 0.000 abstract description 4
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 abstract 1
- 229960001484 edetic acid Drugs 0.000 abstract 1
- 239000004320 sodium erythorbate Substances 0.000 abstract 1
- 230000009044 synergistic interaction Effects 0.000 abstract 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 8
- 239000010962 carbon steel Substances 0.000 description 8
- 150000007524 organic acids Chemical class 0.000 description 7
- 239000002253 acid Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000002195 synergetic effect Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 231100000252 nontoxic Toxicity 0.000 description 3
- 230000003000 nontoxic effect Effects 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 159000000003 magnesium salts Chemical class 0.000 description 2
- BDOYKFSQFYNPKF-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]acetic acid;sodium Chemical compound [Na].[Na].OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O BDOYKFSQFYNPKF-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 229940123973 Oxygen scavenger Drugs 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- 125000005233 alkylalcohol group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000002508 compound effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
- C11D1/721—End blocked ethers
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0073—Anticorrosion compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/042—Acids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy carboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2096—Heterocyclic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/33—Amino carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/36—Organic compounds containing phosphorus
- C11D3/365—Organic compounds containing phosphorus containing carboxyl groups
-
- C11D2111/14—
Abstract
The invention relates to online washing and descaling cleaning dispersant for an oil field oil pipeline. The online washing and descaling cleaning dispersant is composed of, by mass, 15-25 parts of glycolic acid, 15-25 parts of sulfamic acid, 10-20 parts of ethylene diamine tetraacetic acid, 20-30 parts of d-sodium erythorbate, 5-15 parts of 2-phosphonobutane-1,2,4-tricarboxylic acid, 1-5 parts of fatty alcohol-polyoxyethylene ether and 30-40 parts of water. The cleaning dispersant is designed particularly for online washing of the oil field oil pipeline, the deposited scale washing effect is very good, the components have good synergistic interaction performance, and the effect of the cleaning dispersant is excellent. Meanwhile, the cleaning dispersant has excellent permeation dispersion and corrosion inhibition. The cleaning dispersant is environmentally friendly and free of pollution after being discharged, washing effluent does not need to be centrally treated and can be degraded biologically and automatically, and no hazard will be generated to the environment.
Description
Technical field
The present invention relates to dispersant is cleaned, more particularly to a kind of cleaning dispersant of oil field oil pipeline on-line cleaning scale removal
And preparation method.
Background technology
In many technologies of the exploitation of oil, alkaline surfactant polymer flooding oil-field technology is a kind of new technique, multiple using ternary
Close and drive oil recovery efficiency height, oil-producing is stable, but the normal foulings of technology oil recovery oil pipeline Jing, and pit shaft and nearly well are exported and set when serious
Standby blocking pipeline, causes oil recovery to be carried out continuously, and needs to shut down individually cleaning equipment, pipeline, takes the general 3-5 days time,
And the cleaning waste liquid for discharging also needs to focus on.
Offline cleaning is a kind of most currently used cleaning method, and the suitable abluent of reselection can just reach cleaning
Purpose, but it also has many deficiencies, for example, need to shut down external cleaning equipment, and pickle liquor needs to focus on, processing cost
Height, increases cost for oil production, affects production efficiency etc., and on-line cleaning has cleaning inadequate due to being limited by the restriction of abluent
Thoroughly, time-consuming longer, outer draining is not up to standard, it is impossible to reaches fine cleaning performance and limits its development.
The content of the invention
The technical problem to be solved is the shortcoming for overcoming prior art, there is provided a kind of suitable for on-line cleaning
High-efficiency environment friendly cleans dispersant, and with scavenging period is short, on-line cleaning does not affect to produce, economizes on water, cleaning efficiency is high, defeated to recovering the oil
The free from corrosion feature of oil-piping, and the cleaning dispersant environmental protection, in water body can natural degradation, nontoxic pollution-free.
For achieving the above object, the present invention employs the following technical solutions realization：
A kind of cleaning dispersant of oil field oil pipeline on-line cleaning scale removal, its constituent is by mass fraction：Hydroxyl
15 parts -25 parts of acetic acid, 15 parts -25 parts of sulfamic acid, 10 parts -20 parts of disodiumedetate, 20 parts of sodium D-isoascorbate -
30 parts, 5 parts -15 parts of 2- phosphonic acid butane -1,2,4- tricarboxylic acids, 1 part -5 parts of fatty alcohol-polyoxyethylene ether, water：30 parts -40 parts.
A kind of cleaning dispersant of oil field oil pipeline on-line cleaning scale removal, its constituent is preferably by mass fraction：
18 parts -22 parts of hydroxyacetic acid, 17 parts -23 parts of sulfamic acid, 13 parts -18 parts of disodiumedetate, sodium D-isoascorbate
23 parts -28 parts, 8 parts -13 parts of 2- phosphonic acid butane -1,2,4- tricarboxylic acids, 2 parts -4 parts of fatty alcohol-polyoxyethylene ether, water：30 parts-
40 parts.
A kind of cleaning dispersant and preparation method of oil field oil pipeline on-line cleaning scale removal, is completed by following operation：
The water of 30 parts -40 parts of 5 parts -15 parts of 2- phosphonic acid butane -1,2,4- tricarboxylic acids and water is mixed at normal temperatures
10-20 minutes, sequentially add 15 parts -25 parts of hydroxyacetic acid, 15 parts -25 parts of sulfamic acid, ethylenediamine under stirring afterwards
10 parts -20 parts of tetraacethyl disodium, stirs 25-35 minutes, after mix homogeneously is completely dissolved, finally by sodium D-isoascorbate 20
1 part of -5 parts of addition of -30 parts of part and fatty alcohol-polyoxyethylene ether, continue to stir 20 minutes, and dispersant must have both been cleaned after mixing.
A kind of cleaning dispersant using method of oil field oil pipeline on-line cleaning scale removal, operates as follows：
1) on-line cleaning oil field oil pipeline water temperature cleans the usage amount of dispersant according to scene extraction oil at 40-50 DEG C
Water mixed liquid circulation is possessed water yield 0.4-0.5g/L and is disposably added.
2) on-line cleaning is carried out as scene extraction oil-water mixture circulation operation is synchronous, and scavenging period is 168-
216 hours, treat that oil field oil pipeline inlet outlet pressure differential returns to oil pipeline regulation pressure differential range 0-1MPa, on-line cleaning is complete
Into.
Hydroxyacetic acid has that corrosivity are low, should not fire, odorless, the features such as toxicity is low, Biodegradable is strong, water solublity is high,
There is preferable solvability to the dirty thing of alkalinous metal class, it is more violent with the compound effects such as calcium, magnesium, it is suitable for cleaning
Calcium, magnesium salt dirt.
With the highly acid being equal to hydrochloric acid, sulphuric acid, it has very high dissolubility to dirt to its aqueous solution of sulfamic acid, no
Precipitation can be produced in cleanout fluid, it is less to metal protection.Can be with various sour compounding uses, using effect of arranging in pairs or groups is more preferably.
Disodiumedetate is a kind of excellent calcium, magnesium ion chelating agent, and ethylenediaminetetraacetic acid is added in abluent
Calcium, the magnesium salt that disodium prevents from washing down is deposited again in metal surface.Disodiumedetate is nontoxic, green ring
Protect, using safety.
Sodium D-isoascorbate is nontoxic, is commonly used for oxygen scavenger, can react with oxygen in water because its is distinctive, raw
Into hydroascorbic acid, rate of corrosion can be effectively reduced so as to oxygen be removed, slow down corrosion of metal in cleaning process, with other
Component compatibility is using playing synergistic function.
2- phosphonic acid butane -1,2,4- tricarboxylic acids are a kind of water treatment agents for having scale inhibition slow release concurrently, are stablized with good
Property, resistance to oxidation, chlorine-resistant property, applicable pH range width, with the use of can simultaneously play dispersion incrustation ion and suppression in abluent
Metal erosion processed.
Fatty alcohol-polyoxyethylene ether is nonionic surfactant, its biodegradability, hard water resistance performance and resistance to electrolysis
Matter performance is preferable, with performances such as good emulsifying, moistening, dispersion, increase-volume and decontaminations.Add poly alkyl alcohol in Chemical cleaning
Oxygen vinyl Ether can accelerate abluent being impregnated with the fine and close incrustation scale of hard, and coordinating with other acid medicines can play Synergistic
Effect.
Reagent of the invention selected is respectively provided with low toxicity, is readily biodegradable characteristic, after on-line cleaning outer draining without the need for concentration at
Reason, it is free from environmental pollution.On-line cleaning is different from offline cleaning, and selected acid is organic acid, using organic acid cleaning characteristicses：1. will not
Make to occur a large amount of sediments or float in cleanout fluid and block pipeline, this has very much for the cleaning of baroque static mixer
Profit；2. organic acid can be used to clean austenitic steel；3. organic acid cleanout fluid is safer, remains in the organic acid in waste liquid in height
Temperature is lower to decompose the harmless carbon dioxide of paired systems and water；4. organic acid mostly is weak acid, can be used to clean existing heavy corrosion, especially
It is the equipment of existing intercrystalline corrosion, and without embrittlement effect.By organic acid hydroxyacetic acid, sulfamic acid and ethylenediaminetetraacetic acid
Disodium has good Synergistic with the use of greatly improving cleaning performance, reduction between scavenging period, and each component
Effect, cleaning performance is notable.
Compared with prior art, the invention has the beneficial effects as follows：
1st, present invention is particularly directed to the design of oil field oil pipeline on-line cleaning, fine to the dirty cleaning performance of deposition, each component
Between have good synergetic so that cleaning dispersant action effect it is excellent.Have simultaneously excellent infiltration dispersion and
Corrosion inhibition.
2nd, cleaning dispersant environmental protection of the invention, no pollution after discharge, cleaning waste liquid need not be focused on, can be certainly
Row biodegradation, will not be to environmental danger.
3rd, present invention cleaning dispersant is designed particular for on-line cleaning, can be completed under the premise of production efficiency is not affected
Cleaning, does not need Passivation Treatment after on-line cleaning.
4th, cleaning dispersant component of the invention is easily compounded, and good stability, price is low, safe, in operation and fortune
It is defeated very convenient, it is advantageously ensured that using effect.
5th, Jing scenes prove to add the cleaning dispersant, and oil recovery oil pipeline inlet outlet pressure differential drops to range of normal value
It is interior, scale removal excellent effect, while also having the effect for suppressing corrosion.
Specific embodiment
With reference to embodiment, the present invention is further described：
Following examples describe the present invention.These embodiments are only that preferred embodiment of the invention is entered
Row description, does not limit the scope of the present invention.
Embodiment：
The 4 kinds of recipe ingredient compositions of cleaning dispersant for preparing oil field oil pipeline on-line cleaning scale removal are shown in Table 1.
Table 1：
Oil Field extraction oil-water mixture condition of water quality is shown in Table 2.
Table 2：
Under the condition of water quality of table 2,45 DEG C of water temperature tests pipe size by 4：DN19mm × 2mm carbon steel single tubes are put into oil field
In the middle of oil pipeline, invade extraction mixed liquor and do not have carbon steel single tube continuously operation 1 month, by the carbon steel list of fouling after 1 month
Pipe takes out standby.
Foundation《Dynamic analogue test of cooling water method》(HG/T 2160-2008) is carried out to above-mentioned 4 test carbon steel single tubes
Inhibition dirtiness resistance effective evaluation, experiment water quality produces oil-water mixture using Oil Field, and condition of water quality is shown in Table 2, possesses water
Amount 120L, circulating load 180L/h, the cleaning dispersant of 4 group of formula is added to respectively in scaled carbon steel single tube, by possessing water
Amount 0.4g/L disposably adds 48g, continuous operation 168 hours, calculates its year corrosion rate and annual fouling resistance the results are shown in Table 3.
Table 3：
As can be seen from Table 3 formula D corrosion rates effect is slightly better than other formula, is much smaller than《Industrial equipment chemistry is clear
Wash quality standard》Specify carbon steel class 0.764mm/a in (HG/T 2387-2007) standard.Formula D annual fouling resistance clearances reach
To 94.2%, reflect in carbon steel single tube that substantially cleaning is completed dirt, has reached good effect.Therefore, formula D is
Preferred plan.
Field test：
On-line cleaning operation is carried out in certain oil field factory oil pipeline, condition of water quality is shown in Table 4.
Table 4：
Scene extraction oil-water mixture circulation possesses the water yield for 6000L, and quantity of circulating water is 180L/h, water temperature 40-
50 DEG C, 1 kilometer of duct length, cleaning preceding pipeline inlet pressure is 15.8MPa, and pipe outlet pressure is 12.5MPa, and pipeline is passed in and out
Mouth pressure reduction is 3.3MPa, and the cleaning dispersant of formula D is disposably added into 3kg by water yield 0.5g/L is possessed, and continuous operation 192 is little
Shi Hou, quantity of circulating water is 240L/h, and conduit entrance pressure is 15.9MPa, and pipe outlet pressure is 15.1MPa, due to oil field it is defeated
Caliber diminishes after oil-piping fouling, and pipeline inlet outlet pressure differential increases, and pipeline inlet outlet pressure differential is 0.8MPa after cleaning, and pipeline is passed in and out
Mouth pressure reduction declines 2.5MPa before relatively cleaning, quantity of circulating water relatively cleaning is front to rise 60L/h.Open oil pipeline after the completion of cleaning to enter
Mouth and export inspection, tube wall dirt has been cleaned, and cleaning performance is notable.There was only 0.0317mm/ to corrosion of carbon steel speed
a.There is no waste liquid after present invention cleaning, without the need for focusing on, onsite application works well.
Claims (4)
1. a kind of cleaning dispersant of oil field oil pipeline on-line cleaning scale removal, it is characterised in that mass parts are pressed in its constituent
Number is：15 parts -25 parts of hydroxyacetic acid, 15 parts -25 parts of sulfamic acid, 10 parts -20 parts of disodiumedetate, the different Vitamin Cs of D-
20 parts -30 parts of sour sodium, 5 parts -15 parts of 2- phosphonic acid butane -1,2,4- tricarboxylic acids, 1 part -5 parts of fatty alcohol-polyoxyethylene ether, water：30
- 40 parts of part.
2. the cleaning dispersant of a kind of oil field oil pipeline on-line cleaning scale removal according to claim 1, it is characterised in that
Its constituent is preferably by mass fraction：18 parts -22 parts of hydroxyacetic acid, 17 parts -23 parts of sulfamic acid, ethylenediaminetetraacetic acid two
13 parts -18 parts of sodium, 23 parts -28 parts of sodium D-isoascorbate, 8 parts -13 parts of 2- phosphonic acid butane -1,2,4- tricarboxylic acids, fatty alcohol
2 parts -4 parts of polyoxyethylene ether, water：30 parts -40 parts.
3. the cleaning dispersant and preparation method of a kind of oil field oil pipeline on-line cleaning scale removal according to claim 1,
Characterized in that, completing by following operation：
The water of 30 parts -40 parts of 5 parts -15 parts of 2- phosphonic acid butane -1,2,4- tricarboxylic acids and water is mixed at normal temperatures 10-20
Minute, sequentially add 15 parts -25 parts of hydroxyacetic acid, 15 parts -25 parts of sulfamic acid, ethylenediaminetetraacetic acid under stirring afterwards
10 parts -20 parts of disodium, stirs 25-35 minutes, after mix homogeneously is completely dissolved, finally by 20 part -30 of sodium D-isoascorbate
1 part of -5 parts of addition of part and fatty alcohol-polyoxyethylene ether, continue to stir 20 minutes, and dispersant must have both been cleaned after mixing.
4. a kind of cleaning dispersant using method of oil field oil pipeline on-line cleaning scale removal according to claim 1, grasps
Make as follows：
1) on-line cleaning oil field oil pipeline water temperature at 40-50 DEG C, according to scene extraction profit mix by the usage amount for cleaning dispersant
Conjunction liquid circulation is possessed water yield 0.4-0.5g/L and is disposably added.
2) on-line cleaning is carried out as scene extraction oil-water mixture circulation operation is synchronous, and scavenging period is 168-216
Hour, treat that oil field oil pipeline inlet outlet pressure differential returns to oil pipeline regulation pressure differential range 0-1MPa, on-line cleaning is completed.
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| CN201610919691.4A CN106566677B (en) | 2016-10-21 | 2016-10-21 | A kind of the cleaning dispersing agent and preparation method of the scale removal of oil field oil pipeline on-line cleaning |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109810791A (en) * | 2018-12-12 | 2019-05-28 | 天津正达科技有限责任公司 | It is a kind of for refining oil the scavenger specially of filter tank by water circulation system |
| CN110726638A (en) * | 2019-11-01 | 2020-01-24 | 中国石油化工股份有限公司 | Quantitative detection method for cleanliness of waste oil pipelines |
| CN112963123A (en) * | 2021-02-02 | 2021-06-15 | 西南石油大学 | Automatic protection device for oil discharge pipe and operation method thereof |
| CN113388457A (en) * | 2021-07-19 | 2021-09-14 | 成都扬华源动新材料科技有限公司 | Dredging cleaning agent and preparation method thereof |
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| CN104962266A (en) * | 2015-06-17 | 2015-10-07 | 成都高普石油工程技术有限公司 | Oil well cleaning scale inhibitor |
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| CN104962266A (en) * | 2015-06-17 | 2015-10-07 | 成都高普石油工程技术有限公司 | Oil well cleaning scale inhibitor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109810791A (en) * | 2018-12-12 | 2019-05-28 | 天津正达科技有限责任公司 | It is a kind of for refining oil the scavenger specially of filter tank by water circulation system |
| CN110726638A (en) * | 2019-11-01 | 2020-01-24 | 中国石油化工股份有限公司 | Quantitative detection method for cleanliness of waste oil pipelines |
| CN112963123A (en) * | 2021-02-02 | 2021-06-15 | 西南石油大学 | Automatic protection device for oil discharge pipe and operation method thereof |
| CN113388457A (en) * | 2021-07-19 | 2021-09-14 | 成都扬华源动新材料科技有限公司 | Dredging cleaning agent and preparation method thereof |
| CN113388457B (en) * | 2021-07-19 | 2022-05-03 | 成都扬华源动新材料科技有限公司 | Dredging cleaning agent and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN106566677B (en) | 2019-03-22 |
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