CN101851493A - Preparation of water-soluble salt-resistant dispersing drag reducer for heavy oil exploitation - Google Patents
Preparation of water-soluble salt-resistant dispersing drag reducer for heavy oil exploitation Download PDFInfo
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Abstract
The invention provides preparation of a water-soluble salt-resistant dispersing drag reducer for heavy oil exploitation. The water-soluble salt-resistant dispersing drag reducer can be used after 1 percent solution prepared from an A agent and 0.125 percent solution prepared from a B agent are mixed. A method for preparing the water-soluble salt-resistant dispersing drag reducer comprises the following steps of: putting 155 to 170 weight parts of nonyl phenol and 2 to 3 weight parts of potassium hydroxide into an agitated reactor; introducing nitrogen into the reactor, displacing for three to four times; stirring and raising temperature to be 110 to 120 DEG C; vacuumizing for 60 to 65 minutes; inflating nitrogen until the pressure is 0.01 MPa; reducing the temperature to be 98 DEG C after keeping the constant temperature for 60 minutes; adding 80 to 90 weight parts of allyl glycidyl ether dropwise and reacting for 6 hours; reducing the temperature to be 30 DEG C after keeping the temperature of between 90 and 98 DEG C for 2 hours; adding 30 to 32 weight parts of sulfamic acid, 11 to 14 weight parts of urea and 0.3 to 0.7 weight part of thiourea into the reactor; then introducing nitrogen and vacuumizing and keeping the constant temperature for 60 minutes; adding 3 to 5 weight parts of ammonia water into the reactor; after 60 minutes, adding 620 to 670 weight parts of pure water and 45 to 55 weight parts of trichloroethylene into the reactor; controlling the temperature to be 60 to 70 DEG C for 60 to 65 minutes to obtain the A agent; and mixing 65 to 75 weight parts of anionic polyacrylamide, 10 to 14 weight parts of guar gum, 8 to 12 weight parts of polyanionic cellulose, 4 to 6 weight parts of sodium dodecyl benzene sulfonate, 2-3 weight parts of aminotriacetic acid and 0.7 to 1.2 weight part of Bronopol and mechanically stirring the mixture for 58 to 65 minutes to obtain the B agent.
Description
Technical field
The present invention relates to the preparation of the dispersing drag reducer of viscous oil recovery, especially adapt to the water-soluble salt-resistant environment, can realize the effect of the salt water resistance dissolubility dispersion drag reduction of heavy oil cold flow production.
Background technology
Viscous crude is meant that the viscosity of gas-free oil under the reservoir temperature surpasses 1000mPas crude oil.Viscosity of thickened oil is big, and is mobile poor, and the key of exploitation is reduction viscosity, improves liquidity.What developed has thermal recovery, mixes the thin oil method, ultrasonic wave viscosity reduction, microorganism viscosity reduction method etc., but owing to be subjected to the energy and resource limit, so the chemical viscosity reduction method generally receives publicity.The chemical viscosity reduction method has: catalytic viscosity reduction, add alkali viscosity reduction, reducing viscosity by emulsifying, with pour point depressant method, solubilizing agent viscosity reduction method, in these methods, the reducing viscosity by emulsifying field conduct gets up comparatively simple, uses comparatively general.
Reducing viscosity by emulsifying heavy crude producing technology is a raising thick oil recovery ratio new technology that grows up the sixties in 20th century; it has merged the protection oil reservoir and has improved the basic thought of recovery ratio; this technology is by a certain amount of injection shaft bottom with active water (aqueous solution of tensio-active agent, auxiliary agent); making highly viscous crude is to be scattered in the active water with thick oil droplet; form low viscous O/W type milk sap with viscous crude; the frictional resistance of viscous crude is become the frictional resistance of water, reach the purpose that reduces viscosity of thickened oil.But decompose because of product when currently available products runs into the local water of high salinity or can't cause with the milk sap that crude oil forms losing efficacy, do not reach the requirement of viscous oil recovery.
The product innovation of the present invention's design and preparation can be evaded the anti-high salinity poor performance of currently available products, shortcomings such as viscosity-reducing performance difference, and the salt water resistance dissolubility of realization heavy oil cold flow production disperses the technique effect of drag reduction.
Summary of the invention
The objective of the invention is to: a kind of water-soluble salt-resistant viscous crude dispersing drag reducer is provided, is used for the water-soluble chemical viscosity reduction of viscous oil recovery process, performance realizes the technique effect of reducing thick oil viscosity exploitation to the dispersion drag reduction effect of viscous crude.
The object of the present invention is achieved like this: a kind of preparation that is used for the water-soluble salt-resistant dispersing drag reducer of viscous oil recovery, form by agent of water-soluble salt-resistant surfactant A and polymer reactive polymer B agent; Feed intake through being prepared into product with parts by weight;
Wherein A agent: by nonyl phenol 155-170 part, potassium hydroxide 2-3 part, glycidyl allyl ether 80-90 part, thionamic acid 30-32 part, urea 11-14 part, thiocarbamide 0.3-0.7 part, ammoniacal liquor 3-5 part, trieline 45-55 part, pure water 620-670 part are formed; Its good preparation is by 163 parts of nonyl phenols, 2 parts in potassium hydroxide, 87 parts of glycidyl allyl ethers, 30.5 parts of thionamic acids, 13 parts in urea, 0.5 part of thiocarbamide, 4 parts of ammoniacal liquor, 50 parts of trielines, 650 parts of compositions of pure water;
The preparation method:
A, nonyl phenol and potassium hydroxide are added reactor, logical nitrogen replacement 3-4 time, 110-120 ℃ of stirring intensification, isothermal reaction vacuumized 60 minutes after 60 minutes, and inflated with nitrogen is to 0.01MPa;
B, be cooled to 98 ℃, drip glycidyl allyl ether, dropwised in 6 hours, continue to keep 90-98 ℃ of temperature, react after 2 hours, be cooled to 30 ℃, stirring stops;
C, thionamic acid, urea, thiocarbamide are added this reactor successively, logical nitrogen replacement 3-4 time, 100-110 ℃ of stirring intensification vacuumized 60 minutes, and inflated with nitrogen is to 0.01MPa; Intensification 110-120 ℃, isothermal reaction was cooled to 70 ℃ after 180 minutes, added ammoniacal liquor, reacted after 60 minutes, added pure water, trieline again, and temperature control 60-70 ℃, reacted 60-65 minute, promptly get A agent product;
Wherein B agent: form by anionic polyacrylamide 65-75 part, guar gum 10-14 part, Polyanionic Cellulose 8-12 part, Sodium dodecylbenzene sulfonate 4-6 part, nitrilotriacetic acid 2-3 part, cloth sieve bohr 0.7-1.2 part; Its best preparation is made up of for 1 part 70 parts of anionic polyacrylamides, 12 parts of guar gums, 10 parts of Polyanionic Celluloses, 5 parts of Sodium dodecylbenzene sulfonatees, 2 parts of nitrilotriacetic acids, cloth sieve bohr;
The preparation method:
Raw material is added reactor successively, under the cooperation of solid stirrer, stir and promptly got B agent product in 58-65 minute.
The preparation of described dispersing drag reducer, the A agent is mixed with 1% aqueous solution with local water when mixing use, and the B agent is mixed with 0.125% aqueous solution with clear water and gets final product.
The preparation of described dispersing drag reducer, water oil ratio was 7: 3 when product used.
The preparation of described dispersing drag reducer, dosage was 1000-4000mg/L when product used.
The preparation of described dispersing drag reducer, the raw material of product are selected for use and are the commercially available prod.
The A agent of design of the present invention and gained water-soluble salt-resistant tensio-active agent, can utilize its steric effect, raising is to wax crystalline substance, colloid, bitum dissemination, substitute the naturally occurring emulsifying agent on the water-oil interface, form oriented adsorption, change molecular interaction and interface transmittance process, forming water is the milk sap of dispersion medium, causes the remarkable decline of system viscosity.
The B agent of design of the present invention and gained polymer reactive polymer, its molecule enters between colloid and the bituminous matter sheet molecule by forming strong hydrogen bond ability and infiltration, dissemination, part is broken the overlapping aggregate that forms of piling up in plane, form that the sheet molecule is randomly piled up, the more loose order degree of texture ratio is lower, the space extensibility little, have the viscosity-depression agent molecule to participate in the aggregate of (forming new hydrogen bond), thereby the reduction viscosity of thickened oil reduces crude oil in the adsorptive power (comprising bed boundary, pipeline interface) at electronegativity interface and avoid the anti-phase thickening of profit system.
This product can reduce the surface tension of concentrated water significantly.Formed milk sap can easily adopt to heat up or add the emulsion splitter method and carry out breakdown of emulsion.Water-soluble salt-resistant viscous crude dispersing drag reducer has no effect to crude pipeline transportation process and crude refining process.
When this product is 10000-200000mg/L in formation water salinity, Ca
2+, Mg
2+Under the condition of ion content≤15000mg/L, still can form stable O/W type milk sap, can reduce viscosity of thickened oil significantly.The static demulsification performance of the oil hydrosol of output is good, and the upper strata viscous crude is moisture to be lower than 5%, can satisfy the crude oil exporting standard.
The anti-salt property test of this product is done contrast with the tensio-active agent of reducing viscosity by emulsifying commonly used, the results are shown in Table.
Table
Last table result shows: water-soluble salt-resistant viscous crude dispersing drag reducer has very high salt tolerance.
The science using method of this product:
A agent local water dosing before using is made into 1% aqueous solution.B agent clear water dosing is made into 0.125% aqueous solution, and remix uses.
The water oil ratio that product uses is 7: 3, and promptly water content reaches more than 30%, does not reach this ratio as water content, injects the water of capacity when adding dispersing drag reducer, with giving full play to of guaranteed performance; Be higher than this ratio as water content, directly add dispersing drag reducer and get final product.
The dosage that product uses is 1000-4000mg/L.
The salt tolerant viscous crude dispersing drag reducer of the present invention's design and the using method of science have been evaded the anti-high salinity poor performance of currently available products, and the shortcoming of viscosity-reducing performance difference when providing product innovation for viscous oil recovery, has been expanded the novel method of using, and shows technical progress.
Embodiment
Embodiment
Product is made up of agent of water-soluble salt-resistant surfactant A and polymer reactive polymer B agent; Prepare with parts by weight; The A agent need be adopted the local water dosing, and the B agent need be adopted the clear water dosing, mixes the back and uses.
The A agent: by 163 parts of nonyl phenols, 2 parts in potassium hydroxide, 87 parts of glycidyl allyl ethers, 30.5 parts of thionamic acids, 13 parts in urea, 0.5 part of thiocarbamide, 4 parts of ammoniacal liquor, 50 parts of trielines, 650 parts of compositions of pure water;
In addition by 170 parts of nonyl phenols, 3 parts in potassium hydroxide, 90 parts of glycidyl allyl ethers, 32 parts of thionamic acids, 14 parts in urea, 0.7 part of thiocarbamide, 5 parts of ammoniacal liquor, 55 parts of trielines, 670 parts of compositions of pure water;
The preparation method:
1. nonyl phenol and potassium hydroxide are added reactor, logical nitrogen replacement 4 times stirs and heats up 120 ℃, and isothermal reaction vacuumized 60 minutes after 60 minutes, and inflated with nitrogen is to 0.01MPa;
2. be cooled to 98 ℃, drip glycidyl allyl ether, dropwised in 6 hours, continue to keep 98 ℃ of temperature, react after 2 hours, be cooled to 30 ℃, stirring stops;
3. thionamic acid, urea, thiocarbamide are added this reactor successively, nitrogen replacement 3 times stirs and heats up 100 ℃, vacuumizes 60 minutes, and inflated with nitrogen is to 0.01MPa; Heat up 110 ℃, isothermal reaction was cooled to 70 ℃ after 180 minutes, added ammoniacal liquor, reacted after 60 minutes, added pure water, trieline again, and 60 ℃ of temperature controls reacted 63 minutes, promptly got salt tolerant surfactant A agent product.
B agent: form for 1 part by 70 parts of anionic polyacrylamides, 12 parts of guar gums, 10 parts of Polyanionic Celluloses, 5 parts of Sodium dodecylbenzene sulfonatees, 2 parts of nitrilotriacetic acids, cloth sieve bohr;
Form for 1.2 parts by 75 parts of anionic polyacrylamides, 14 parts of guar gums, 12 parts of Polyanionic Celluloses, 6 parts of Sodium dodecylbenzene sulfonatees, 3 parts of nitrilotriacetic acids, cloth sieve bohr in addition;
The preparation method
Raw material is added reactor successively, under the cooperation of solid stirrer, stir and promptly got B agent product in 58 minutes.
The testing ground: tell and breathe out the oil field: 25.17%, 52 ℃ of viscosity of crude oil water containing is 32790mPa.S.
The dosing water: local water is adopted in the A agent, and clear water is adopted in the B agent, incorporate oil sample after salinity of mixed be about 10 * 10
4Mg/L.
Use concentration: A agent dosage is 1600mg/L; B agent dosage is 400mg/L;
Effect is described: emulsify well, crude oil are dispersed in the solution, mixed solution good fluidity, not sticking wall.
Test in place observation: tell and breathe out the oil field well and carry out water-soluble salt-resistant viscous crude dispersing drag reducer chemistry and help and adopt test, when mixed solution returns out well head, serial sampling is observed, find that the mixed solution dispersion state is good, the abnormal conditions that do not occur returning on the viscous crude, back pressure is normal simultaneously, and electric current obviously descends, can satisfy the ordinary production needs, applicable cases is good.
Water-soluble salt-resistant viscous crude dispersing drag reducer successively in the oil field, Tarim Basin, tell many mouthfuls of wells such as breathing out the oil field and carry out on-the-spot chemical viscosity reduction verification experimental verification, this medicament all can make oil well guarantee ordinary production, emulsification of crude oil is respond well, has reached the purpose that alternative thin oil is mixed rare production.
Claims (5)
1. preparation that is used for the water-soluble salt-resistant dispersing drag reducer of viscous oil recovery is characterized in that: be made up of agent of water-soluble salt-resistant surfactant A and polymer reactive polymer B agent; Feed intake through being prepared into product with parts by weight;
Wherein A agent: by nonyl phenol 155-170 part, potassium hydroxide 2-3 part, glycidyl allyl ether 80-90 part, thionamic acid 30-32 part, urea 11-14 part, thiocarbamide 0.3-0.7 part, ammoniacal liquor 3-5 part, trieline 45-55 part, pure water 620-670 part are formed; Its good preparation is by 163 parts of nonyl phenols, 2 parts in potassium hydroxide, 87 parts of glycidyl allyl ethers, 30.5 parts of thionamic acids, 13 parts in urea, 0.5 part of thiocarbamide, 4 parts of ammoniacal liquor, 50 parts of trielines, 650 parts of compositions of pure water;
The preparation method:
A, add nonyl phenol and potassium hydroxide to reactor, logical nitrogen replacement 3-4 time, 110-120 ℃ of stirring intensification, isothermal reaction vacuumized 60 minutes after 60 minutes, and inflated with nitrogen is to 0.01MPa;
B, be cooled to 98 ℃, drip glycidyl allyl ether, dropwised in 6 hours, continue to keep 90-98 ℃ of temperature, react after 2 hours, be cooled to 30 ℃, stirring stops;
C, thionamic acid, urea, thiocarbamide are added this reactor successively, nitrogen replacement 3-4 time stirs 100-110 ℃ of intensification, vacuumizes 60 minutes, and inflated with nitrogen is to 0.01MPa; Intensification 110-120 ℃, isothermal reaction was cooled to 70 ℃ after 180 minutes, added ammoniacal liquor, reacted after 60 minutes, added pure water, trieline again, and temperature control 60-70 ℃, reacted 60-65 minute, promptly get A agent product;
Wherein B agent: form by anionic polyacrylamide 65-75 part, guar gum 10-14 part, Polyanionic Cellulose 8-12 part, Sodium dodecylbenzene sulfonate 4-6 part, nitrilotriacetic acid 2-3 part, cloth sieve bohr 0.7-1.2 part; Its best preparation is made up of for 1 part 70 parts of anionic polyacrylamides, 12 parts of guar gums, 10 parts of Polyanionic Celluloses, 5 parts of Sodium dodecylbenzene sulfonatees, 2 parts of nitrilotriacetic acids, cloth sieve bohr;
The preparation method:
Raw material is added reactor successively, under the cooperation of solid stirrer, stir and promptly got B agent product in 58-65 minute.
2. the preparation of dispersing drag reducer according to claim 1 is characterized in that: when mix using, the local water dosing is adopted in the A agent, be made into 1% aqueous solution, the clear water dosing is adopted in the B agent, gets final product after being made into 0.125% aqueous solution.
3. the preparation of dispersing drag reducer according to claim 1 is characterized in that: water oil ratio was 7: 3 when product used, and is promptly moisture more than 30%.
4. the preparation of dispersing drag reducer according to claim 1 is characterized in that: dosage was 1000-4000mg/L when product used.
5. the preparation of dispersing drag reducer according to claim 1 is characterized in that: the raw material of product is selected for use and is the commercially available prod.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364206A (en) * | 2010-12-14 | 2012-02-29 | 新疆德蓝股份有限公司 | New method for reducing viscosity of thickened oil for oil and gas extraction |
| CN103408917A (en) * | 2013-07-26 | 2013-11-27 | 华北电力大学（保定） | Drag reducer applicable to desulfuration circulation system of thermal power plant and using method of same |
| CN103710016A (en) * | 2013-12-25 | 2014-04-09 | 四川贝恩能化工有限公司 | Dry-powder structural fluid drag reducer and preparation method thereof |
| CN105001847A (en) * | 2015-07-14 | 2015-10-28 | 中国石油化工股份有限公司 | Salt resistant heavy oil dispersing drag reducing agent and preparation method therefor |
| CN107506611A (en) * | 2017-10-12 | 2017-12-22 | 重庆科技学院 | A kind of method that long-chain alkyl groupses drag reducer resistance reducing performance is predicted according to molecular dynamics simulation |
| CN108006438A (en) * | 2017-12-13 | 2018-05-08 | 常州大学 | A kind of turbulent flow drag reduction agent and preparation method thereof |
| US10407611B2 (en) | 2016-01-08 | 2019-09-10 | Ecolab Usa Inc. | Heavy oil rheology modifiers for flow improvement during production and transportation operations |
Family Cites Families (2)
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| CN1137238C (en) * | 2000-08-30 | 2004-02-04 | 中国石油化工股份有限公司 | Emulsifying pour-point depressant for thick oil and its preparing process |
| CN100529011C (en) * | 2007-01-12 | 2009-08-19 | 图们市科兴石化技术开发有限公司 | Surface activating agent for oil-field thick-oil well |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364206A (en) * | 2010-12-14 | 2012-02-29 | 新疆德蓝股份有限公司 | New method for reducing viscosity of thickened oil for oil and gas extraction |
| CN103408917A (en) * | 2013-07-26 | 2013-11-27 | 华北电力大学（保定） | Drag reducer applicable to desulfuration circulation system of thermal power plant and using method of same |
| CN103710016A (en) * | 2013-12-25 | 2014-04-09 | 四川贝恩能化工有限公司 | Dry-powder structural fluid drag reducer and preparation method thereof |
| CN105001847A (en) * | 2015-07-14 | 2015-10-28 | 中国石油化工股份有限公司 | Salt resistant heavy oil dispersing drag reducing agent and preparation method therefor |
| CN105001847B (en) * | 2015-07-14 | 2017-12-26 | 中国石油化工股份有限公司 | Anti-salt type viscous crude dispersing drag reducer and preparation method |
| US10407611B2 (en) | 2016-01-08 | 2019-09-10 | Ecolab Usa Inc. | Heavy oil rheology modifiers for flow improvement during production and transportation operations |
| CN107506611A (en) * | 2017-10-12 | 2017-12-22 | 重庆科技学院 | A kind of method that long-chain alkyl groupses drag reducer resistance reducing performance is predicted according to molecular dynamics simulation |
| CN108006438A (en) * | 2017-12-13 | 2018-05-08 | 常州大学 | A kind of turbulent flow drag reduction agent and preparation method thereof |
| CN108006438B (en) * | 2017-12-13 | 2020-02-14 | 常州大学 | Turbulent drag reducer and preparation method thereof |
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| CN101851493B (en) | 2013-03-13 |
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Address after: 830013 Urumqi high tech Zone (new city) North Industrial Park, blue sky road, No. 216, No. Patentee after: DELAND WATER TECHNOLOGY Co.,Ltd. Address before: 830011 No. 682 South Tianjin Road, the Xinjiang Uygur Autonomous Region, Urumqi Patentee before: XINJIANG DELAND Co.,Ltd. |