CN100513512C - Corrosion-inhibition scale-inhibition paraffin-removal viscosity reducer and preparation method thereof - Google Patents
Corrosion-inhibition scale-inhibition paraffin-removal viscosity reducer and preparation method thereof Download PDFInfo
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- CN100513512C CN100513512C CNB2007101197318A CN200710119731A CN100513512C CN 100513512 C CN100513512 C CN 100513512C CN B2007101197318 A CNB2007101197318 A CN B2007101197318A CN 200710119731 A CN200710119731 A CN 200710119731A CN 100513512 C CN100513512 C CN 100513512C
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims description 7
- 238000005260 corrosion Methods 0.000 claims abstract description 45
- 230000007797 corrosion Effects 0.000 claims abstract description 41
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004094 surface-active agent Substances 0.000 claims abstract description 11
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims abstract description 10
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims abstract description 10
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 14
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 claims description 9
- 239000001488 sodium phosphate Substances 0.000 claims description 9
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 9
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 4
- 210000003298 dental enamel Anatomy 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- JBIROUFYLSSYDX-UHFFFAOYSA-M benzododecinium chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 JBIROUFYLSSYDX-UHFFFAOYSA-M 0.000 claims 2
- 239000003129 oil well Substances 0.000 abstract description 16
- 230000005764 inhibitory process Effects 0.000 abstract description 13
- 230000002401 inhibitory effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- -1 dodecyl dimethyl benzyl Chemical group 0.000 abstract 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 abstract 2
- BAERPNBPLZWCES-UHFFFAOYSA-N (2-hydroxy-1-phosphonoethyl)phosphonic acid Chemical compound OCC(P(O)(O)=O)P(O)(O)=O BAERPNBPLZWCES-UHFFFAOYSA-N 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 abstract 1
- WGQKYBSKWIADBV-UHFFFAOYSA-N aminomethyl benzene Natural products NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000005536 corrosion prevention Methods 0.000 abstract 1
- 150000002170 ethers Chemical class 0.000 abstract 1
- 239000004312 hexamethylene tetramine Substances 0.000 abstract 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 13
- 239000001993 wax Substances 0.000 description 12
- 239000000126 substance Substances 0.000 description 10
- 239000000523 sample Substances 0.000 description 9
- 239000003814 drug Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 7
- 229910052791 calcium Inorganic materials 0.000 description 7
- 239000011575 calcium Substances 0.000 description 7
- BJQDLJHOLXWQFM-UHFFFAOYSA-N dimethyl(1-phenyltridecyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCC([NH+](C)C)C1=CC=CC=C1 BJQDLJHOLXWQFM-UHFFFAOYSA-N 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 4
- 229910001425 magnesium ion Inorganic materials 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000003260 anti-sepsis Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012496 blank sample Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 150000001768 cations Chemical class 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
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000000207 volumetry Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The corrosion-inhibiting, scale-inhibiting, wax-removing and viscosity-reducing agent is applied to oil well corrosion inhibition, scale inhibition, wax removal and viscosity reduction in oil fields. Is characterized in that: the method is characterized in that: the weight ratio of the raw material components is as follows: A. 2-alkyl-1-hydroxyethyl-3-hydroxypropyl imidazoline sodium phosphate: 5-10%; B. dodecyl dimethyl benzyl amine chloride: 10-15%; C. FC-N01 fluorocarbon surfactant: 0.05-0.2%; D. alkylphenol polyoxyethylene (14) ethers: 3-8%; E. formaldehyde: 3-7%; F. hexamethylenetetramine: 8-15%; G. sodium hexametaphosphate: 5-8%; H. hydroxyethylidene diphosphonic acid: 5-8%; I. the balance of water. The effect is as follows: the corrosion-inhibition scale-inhibition paraffin-removal viscosity reducer is applied to the oil well, so that the compatibility of the agent is improved, and the paraffin-removal viscosity-reduction requirements of the oil well and the corrosion-prevention scale-prevention requirements of the oil well are met.
Description
Technical field
The present invention relates to the oilfield chemical technology field, particularly a kind of oil well corrosion-release scale-proof wax-removal viscosity-reducing agent is applied to oil well corrosion-release scale-proof wax-removal viscosity reduction.
Background technology
Behind the high water-cut stage, owing to be immersed in the well liquid of corrosive nature for a long time, oil well casing was corroded during oil-field development entered, and the internal surface of sleeve pipe scale formation is serious.Need keep long period oil recovery production, must adopt chemical agent to reduce corrosion speed, minimizing or removing fouling.In addition, latter period of oilfield development, oil well also need to utilize chemical agent to carry out the wax removal viscosity reduction, improve production capacity.But the compatibleness of inhibition scale removal and these two kinds of medicaments of wax removal viscosity reduction is poor, be unfavorable for that in the same well use medicament plays a role, though have scientific and technical personnel to develop the medicament of collection wax removal viscosity reduction, corrosion-mitigation scale-inhibition one, effect is not fine, has brought very big difficulty for the oil recovery production management yet.
Summary of the invention
The objective of the invention is: a kind of corrosion-release scale-proof wax-removal viscosity-reducing agent and preparation method thereof is provided, improve the compatibleness of medicament, utilize corrosion-release scale-proof wax-removal viscosity-reducing agent can realize wax removal, again can anti-corrosion anti-scale, solve the conventional wax removal viscosity reduction medicament and the deficiency of anti-corrosion anti-scale medicament compatibleness difference.
The technical scheme that the present invention is taked for its technical problem of solution is:
One, the starting material of corrosion-release scale-proof wax-removal viscosity-reducing agent comprise:
A, 2-alkyl-1-hydroxyethyl-3-hydroxypropyl tetrahydroglyoxaline sodium phosphate (industrial goods) (Huang Hongzhou chief editor, the 554th page of Chemical Industry Press China tensio-active agent overview).
Character: tetrahydroglyoxaline phosphoric acid salt amphoterics, have good decontamination, foaming and emulsifying capacity, stability in hard water is good, and is insensitive to acid, alkali, metal ion, also has performances such as good antistatic, antisepsis and sterilization.
Manufacturer: the meticulous daily-use chemical industry of Shanxi high honour company, China Daily Chemical Industry Research Institute
B, dodecyl dimethyl benzyl ammonia chloride (industrial goods);
C, FC-N01 fluorocarbon surfactant (industrial goods), its molecular formula is:
C
3F
7O (C
3F
6)
nC
2F
4CO
2C
2H
4N (C
2H
4OH)
2Wherein: n=2-4
Quality index: little yellow or amber thick liquid, surface tension is less than 168 milli Newton/meter.
Characteristic: be a kind of novel cation fluorocarbon surfactant, have non-ionic character simultaneously, can obviously improve wetting, diffusion, emulsification, flow leveling.
Manufacturer: Shanghai Zhongke Hechen Co., Ltd..
D, alkylphenol-polyethenoxy (14) ether (industrial goods); (Huang Hongzhou chief editor, the 340th page of Chemical Industry Press China tensio-active agent overview).
Character: yellow or brown viscous liquid, acid, alkali, metal salt solution are stablized.
Purposes: general industry emulsifying agent.
Manufacturer: Dalian University of Technology chemical experimental factory; The chemical plant, Lvshun; Liaoning Prov. Chemical Industry Inst.; The general petrochemical works, Xi'an.
E, formaldehyde
F, vulkacit H
G, Sodium hexametaphosphate 99
H, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid
I, water.
The feed composition weight ratio is:
A, 2-alkyl-1-hydroxyethyl-3-hydroxypropyl tetrahydroglyoxaline sodium phosphate (industrial goods): 5～10%
B, dodecyl dimethyl benzyl ammonia chloride (industrial goods); 10～15%
C, FC-N01 fluorocarbon surfactant (industrial goods): 0.05～0.2%
D, alkylphenol-polyethenoxy (14) ether (industrial goods): 3～8%
E, formaldehyde: 3～7%
F, vulkacit H: 8～15%
G, Sodium hexametaphosphate 99: 5～8%
H, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid: 5～8%
I, all the other are water.
Two, the production method of corrosion-release scale-proof wax-removal viscosity-reducing agent
Major equipment:
Normal pressure enamel reaction still with stirring, heating, cooling and vacuum system.
Production method:
At first, 2-alkyl-1-hydroxyethyl-3-hydroxypropyl tetrahydroglyoxaline sodium phosphate, dodecyl dimethyl benzyl ammonia chloride, FC-N01 fluorocarbon surfactant, alkylphenol-polyethenoxy (14) ether, formaldehyde, vulkacit H, Sodium hexametaphosphate 99 and eight kinds of raw materials of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid add the normal pressure enamel reaction still in proportion.Slowly be warmed up to 50-66 ℃.After constantly stirring 30 minutes, stop heating.Stir while cooling off, be cooled to normal temperature.Add entry in proportion, the limit edged stirs, and stirs discharging after 20 minutes, obtains corrosion-release scale-proof wax-removal viscosity-reducing agent.This corrosion-release scale-proof wax-removal viscosity-reducing agent is not flammable.
The invention has the beneficial effects as follows: on oil well, use corrosion-release scale-proof wax-removal viscosity-reducing agent, improved the compatibleness of medicament, both satisfied the wax removal viscosity reduction requirement of oil well, satisfied the anti-corrosion anti-scale requirement of oil well again.
Embodiment
Utilize the oil well of the present invention surplus certain oil field of North China Oilfield the 5th oil recovery factory etc. 30 mouthful on probation, solved the wax removal viscosity reduction and the anti-corrosion, scale-inhibiting problem of oil well simultaneously.Corrosion inhibition rate all reaches more than 92%, compares with the contrast well with block, and the mean lifetime of test pit prolongs 4-5 years.The wax removal viscosity reducing effect obviously improves average viscosity and is reduced to below 75%.
Embodiment 1: the raw-material weight ratio of corrosion-release scale-proof wax-removal viscosity-reducing agent is: 2-alkyl-1-hydroxyethyl-3-hydroxypropyl tetrahydroglyoxaline sodium phosphate: dodecyl dimethyl benzyl ammonia chloride 8%: FC-N01 fluorocarbon surfactant 12%: alkylphenol-polyethenoxy (14) ether 0.1%: formaldehyde 5%: vulkacit H 4.5%: Sodium hexametaphosphate 99 10%: 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 6%: 6% and water: 48.4%.
Process for preparation: at first, eight kinds of raw materials such as 2-alkyl-1-hydroxyethyl-3-hydroxypropyl tetrahydroglyoxaline sodium phosphate, dodecyl dimethyl benzyl ammonia chloride, FC-N01 fluorocarbon surfactant, alkylphenol-polyethenoxy (14) ether, formaldehyde, vulkacit H, Sodium hexametaphosphate 99,1-Hydroxy Ethylidene-1,1-Diphosphonic Acid add the normal pressure enamel reaction still in proportion.Slowly be warmed up to 55 ℃.After constantly stirring 30 minutes, stop heating.Stir while cooling off, be cooled to normal temperature.Add entry in proportion, the limit edged stirs, and stirs discharging after 20 minutes, obtains corrosion-release scale-proof wax-removal viscosity-reducing agent.
Embodiment 2: the raw-material weight ratio of corrosion-release scale-proof wax-removal viscosity-reducing agent is: 2-alkyl-1-hydroxyethyl-3-hydroxypropyl tetrahydroglyoxaline sodium phosphate: dodecyl dimethyl benzyl ammonia chloride 6%: FC-N01 fluorocarbon surfactant 10.3%: alkylphenol-polyethenoxy (14) ether 0.07%: formaldehyde 5%: vulkacit H 4.5%: Sodium hexametaphosphate 99 11%: 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 6%: 6% and water: 51.13%.
Preparation process is identical with embodiment 1.
Embodiment 3: the raw-material weight ratio of corrosion-release scale-proof wax-removal viscosity-reducing agent is: 2-alkyl-1-hydroxyethyl-3-hydroxypropyl tetrahydroglyoxaline sodium phosphate that China Daily Chemical Industry Research Institute produces: 9%, dodecyl dimethyl benzyl ammonia chloride: 13.5%, FC-N01 fluorocarbon surfactant: 0.15%, alkylphenol-polyethenoxy (14) ether that the chemical plant, Lvshun produces: 7.7%, formaldehyde: 6.5%, vulkacit H: 13.6%, Sodium hexametaphosphate 99: 7.6%, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid: 7.6% and water: 34.53%.
Preparation process is identical with embodiment 1.
Corrosion inhibition rate is estimated
Select for use the carbon steel lacing film to carry out corrosion experiment, adopt the output liquid that adds and do not add this corrosion-release scale-proof wax-removal viscosity-reducing agent in the on-the-spot well to compare,, calculate corrosion inhibition rate according to the corrosion weight loss of test piece.Step
1, test piece pre-treatment is weighed;
2, test piece is put into the blank output liquid of oil well and added the output liquid of this corrosion-release scale-proof wax-removal viscosity-reducing agent respectively, sealing, in incubator maintenance 3-7 days.
3, take out test piece, handle, weigh, calculate corrosion inhibition rate.
The average corrosion rate data obtain by following method and formula:
Weight equaled etching extent after test piece weight deducted and takes out before the test, and etching extent (being converted to average corrosion depth) equals corrosion rate divided by curing time.
Calculation formula is as follows:
Average corrosion rate Fa=[(G
1-G
2) 3650]/(Sdp), unit: millimeter/year
Wherein: G
1--test piece initial mass, the g of unit; G
2--test back test piece quality, the g of unit; S--test piece surface-area, the cm of unit
2The d--test period, the unit fate; P--test piece density, the g/cm of unit
3
Corrosion inhibition rate (%)=100% (F
0-F
1)/F
0
Wherein: F
0--the corrosion rate of lacing film in blank water sample, mm/a;
F
1--the corrosion rate of lacing film in the water sample that has added medicament, mm/a;
Experiment condition: static maintenance 3 days, 70 ℃ of temperature
| Heavy g before the examination | The heavy g in examination back | Weightless | Corrosion inhibition rate % | |
| The contrast well | 7.5734 | 7.4706 | 0.1028 | |
| Embodiment 1 | 8.2497 | 8.2423 | 0.0074 | 92.8 |
| Embodiment 2 | 8.1755 | 8.1682 | 0.0073 | 92.9 |
| Embodiment 3 | 7.7674 | 7.7655 | 0.0019 | 98.2 |
Scale inhibition performance is estimated:
Weigh the size of scale inhibition performance with calcium, magnesium ion concentration in the produced liquid in oil well before and after this corrosion-release scale-proof wax-removal viscosity-reducing agent of volumetry measurement interpolation.
Step
1, the after-filtration that comes out of the water sepn in the produced liquid in oil well, measure calcium, magnesium ion total amount, note is made n
0
2, the water sample that filters out is placed in 70 ℃ of waters bath with thermostatic control, maintenance 25h measures calcium, magnesium ion total amount n
1
3, corrosion-release scale-proof wax-removal viscosity-reducing agent is joined in the water sample that filters out, in 70 ℃ of waters bath with thermostatic control, maintenance 25h measures calcium, magnesium ion total amount n equally
2
4, scale inhibition performance (%)=100% (n
2-n
1)/(n
0-n
1)
| Blank water sample calcium, magnesium total amount mmol/l | Blank water sample calcium, magnesium total amount mmol/1 after the maintenance | Calcium, magnesium total amount mmol/l in the water sample after the dosing | Scale inhibition performance % | |
| Embodiment 1 | 26.3 | 13.3 | 25.6 | 94.6 |
| Embodiment 2 | 16.5 | 9.3 | 16.1 | 94.4 |
| Embodiment 3 | 34.6 | 11.1 | 32.9 | 92.8 |
Paraffin removal rate is estimated:
No. 58 paraffin of certain mass are placed in 45 ℃ of corrosion-release scale-proof wax-removal viscosity-reducing agents, the record consoluet time of wax stone, measure molten wax speed.
| Wax stone quality g | Dissolution time min | Molten wax speed g/min | |
| Embodiment 1 | 0.55 | 10.1 | 0.054 |
| Embodiment 2 | 0.66 | 13.2 | 0.050 |
| Embodiment 3 | 0.57 | 10.4 | 0.0548 |
Viscosity break ratio is estimated:
Add the viscosity of crude of this corrosion-release scale-proof wax-removal viscosity-reducing agent front and back with rotary viscosity measuring, calculate viscosity break ratio.
Step
1, get crude oil sample, preheating in water-bath, its viscosity number when measuring 50 ℃, note is made μ 0;
2, with adding this corrosion-release scale-proof wax-removal viscosity-reducing agent in the crude oil sample, stir, its viscosity number when measuring 50 ℃, note is made μ
1
3, viscosity break ratio (%)=100% (μ
0-μ
1)/μ
0
| Blank sample viscosity mpa.s | Viscosity of crude mpa.s after the dosing | Viscosity break ratio % | |
| Embodiment 1 | 235 | 68 | 71.1 |
| Embodiment 2 | 585 | 125 | 78.6 |
| Embodiment 3 | 643 | 133 | 79.3 |
Claims (2)
1, a kind of corrosion-release scale-proof wax-removal viscosity-reducing agent is characterized in that: the feed composition weight ratio is:
A, 2-alkyl-1-hydroxyethyl-3-hydroxypropyl tetrahydroglyoxaline sodium phosphate: 5～10%;
B, dodecyl benzyl dimethyl ammonium chloride; 10～15%;
C, FC-N01 fluorocarbon surfactant: 0.05～0.2%;
D, alkylphenol-polyethenoxy (14) ether: 3～8%;
E, formaldehyde: 3～7%;
F, vulkacit H: 8～15%;
G, Sodium hexametaphosphate 99: 5～8%;
H, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid: 5～8%;
I, all the other are water.
2, the preparation method of corrosion-release scale-proof wax-removal viscosity-reducing agent according to claim 1 is characterized in that:
At first, eight kinds of raw materials such as 2-alkyl-1-hydroxyethyl-3-hydroxypropyl tetrahydroglyoxaline sodium phosphate, dodecyl benzyl dimethyl ammonium chloride, FC-N01 fluorocarbon surfactant, alkylphenol-polyethenoxy (14) ether, formaldehyde, vulkacit H, Sodium hexametaphosphate 99,1-Hydroxy Ethylidene-1,1-Diphosphonic Acid add the normal pressure enamel reaction still in proportion, slowly be warmed up to 50-66 ℃, after constantly stirring 30 minutes, stop heating, stir while cooling off, be cooled to normal temperature, add entry in proportion, the limit edged stirs, stir discharging after 20 minutes, obtain corrosion-release scale-proof wax-removal viscosity-reducing agent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101197318A CN100513512C (en) | 2007-07-31 | 2007-07-31 | Corrosion-inhibition scale-inhibition paraffin-removal viscosity reducer and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101197318A CN100513512C (en) | 2007-07-31 | 2007-07-31 | Corrosion-inhibition scale-inhibition paraffin-removal viscosity reducer and preparation method thereof |
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| CN100513512C true CN100513512C (en) | 2009-07-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101570687B (en) * | 2008-04-30 | 2011-08-03 | 中国石油天然气股份有限公司 | Oil field water injection resistance reducing agent and application thereof |
| CN101423756B (en) * | 2008-10-14 | 2010-12-22 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Gas well water blocking damage treating agent |
| CN101423755B (en) * | 2008-10-14 | 2010-12-22 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Formula of gas well water blocking damage treating agent |
| PE20121408A1 (en) * | 2009-09-25 | 2012-10-17 | Cytec Tech Corp | PROCESS AND REAGENTS FOR THE INHIBITION OR REDUCTION OF THE FORMATION OF INCRUSTATIONS DURING THE PRODUCTION OF PHOSPHORIC ACID |
| CN101701148B (en) * | 2009-11-17 | 2012-05-30 | 中国石油天然气股份有限公司 | Scale removing and preventing agent for oil well |
| CN101768430B (en) * | 2010-03-05 | 2012-05-09 | 陕西延长石油(集团)有限责任公司研究院 | Scale and scale inhibitor for salt and scale prevention operation of oil-water well and preparation process thereof |
| CN103642470B (en) * | 2013-12-19 | 2016-03-09 | 中国石油集团渤海钻探工程有限公司 | The method of preparation and use of oil base drilling fluid thinner |
| CN103937476B (en) * | 2014-03-20 | 2017-01-25 | 西安石油大学 | Corrosion and scale inhibitor used for mixed scaling and corrosion control of multilayer output liquids |
| CN105441051B (en) * | 2014-08-28 | 2019-02-15 | 中国石油天然气股份有限公司 | Soluble anti-scaling and anti-wax ball |
| US10024185B2 (en) | 2016-09-21 | 2018-07-17 | General Electric Company | Braze gel, brazing process, and brazing article |
| CN108570315B (en) * | 2017-03-08 | 2020-11-13 | 中国石油化工股份有限公司 | Application of imidazole and/or imidazole derivative, acidified heavy oil viscosity reducer and method for reducing viscosity of acidified heavy oil |
| CN107987818A (en) * | 2017-11-23 | 2018-05-04 | 克拉玛依新科澳石油天然气技术股份有限公司 | Oil-base paraffin remover and preparation method thereof |
| CN109779609B (en) * | 2019-01-31 | 2022-01-04 | 中国石油天然气股份有限公司 | Method and device for predicting scaling trend of shaft |
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