CN104017553B - A kind of preparation method of Surfactants Used for Oil field - Google Patents
A kind of preparation method of Surfactants Used for Oil field Download PDFInfo
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- CN104017553B CN104017553B CN201310478505.4A CN201310478505A CN104017553B CN 104017553 B CN104017553 B CN 104017553B CN 201310478505 A CN201310478505 A CN 201310478505A CN 104017553 B CN104017553 B CN 104017553B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
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Abstract
The invention provides the preparation method of a kind of Surfactants Used for Oil field, including a) with material percentage calculation, by sulfonic acid: N.N double hydroxyethyl alkylamide: modified Dodecyl Polyoxyethylene Ether sodium sulfate: salt: NPE: water quality stabilizer: pH adjusting agent: the proportionate relationship configuration raw material of clear water=2:1:4:1:3:3:0.1:10；B) under conditions of temperature 25 DEG C～45 DEG C, clear water is added in the ratio in step a) in reactor, water quality stabilizer, sulfonic acid, N.N double hydroxyethyl alkylamide, modified Dodecyl Polyoxyethylene Ether sodium sulfate, quickly stirring 15 minutes, adding salt to stir 5 minutes, add NPE and pH adjusting agent is uniformly mixed and gets product, fill is put in storage.Activating agent prepared by this invention is suitable for oil-field flooding, is substantially reduced profit surface and interface tension force, improves the water filling hydrophilic for oil passage, extends the service life of water injection pipe.
Description
Technical field
The invention belongs to oil-field flooding technical field, relate to the system of a kind of Surfactants Used for Oil field
Preparation Method.
Background technology
LOW PERMEABILITY RESERVOIR has the advantages that pore throat is tiny, filtrational resistance big, water-drive oil recovery rate is low, only
There is the bigger displacement pressure liquid of applying to flow, can only improve for improving waterflooding development effect
Water injection pressure.
Water filling surfactant the most on the market is the most expensive, and quality differs, purposes
Too wide, the surfactant of non-hydrophilic is also mixed into wherein, brings negative to oil-field flooding work
Impact, and can not effectively prevent injection water quality from going bad.
Summary of the invention
The present invention is to solve that above-mentioned technical problem provides the system of a kind of Surfactants Used for Oil field
Preparation Method, is suitable for oil-field flooding, is substantially reduced profit surface and interface tension force, improves water filling for oil
The hydrophilic of passage, extends the service life of water injection pipe, improves LOW PERMEABILITY RESERVOIR, and raising is gathered
Rate.
The present invention is to be achieved through the following technical solutions:
The preparation method of a kind of Surfactants Used for Oil field, comprises the following steps:
A) with material percentage calculation, by sulfonic acid: N.N-double hydroxyethyl alkylamide: modified
Dodecyl Polyoxyethylene Ether sodium sulfate: salt: NPE: water quality stabilizer: pH
Regulator: the proportionate relationship configuration raw material of clear water=2:1:4:1:3:3:0.1:10；
B) under conditions of temperature 25 DEG C～45 DEG C, by the ratio in step a) in reactor
Example adds clear water, water quality stabilizer, sulfonic acid, N.N-double hydroxyethyl alkylamide, modification 12
Polyoxyethylenated alcohol sodium sulfate, quickly stirring 15 minutes, add salt and stir 5 minutes, add
NPE, adds pH adjusting agent, and regulation pH value is 6.5-7.5, and stirring is mixed
Closing and uniformly get product, fill is put in storage.
Described reactor adjusts still for mixed.
Described Surfactants Used for Oil field model is SQ-2000 surfactant.
Described water quality stabilizer is dodecyl dimethyl benzyl ammonium chloride and isothiazolone；
PH adjusting agent is citric acid or sodium carbonate.
Compared with prior art, the present invention has a following useful technique effect:
Compounding by negative and positive and nonionic surfactant of the present invention, it is achieved live in surface, oil field
The technical performance of property agent (SQ-2000), inexpensive.
The present invention reduces LOW PERMEABILITY RESERVOIR water injection pressure, improves relatively oozing of oil displacement efficiency, oil and water
Rate all rises thoroughly, and two-phase flow scope broadens, and rock wettability offsets to hydrophilic direction,
SQ-2000 surfactant can improve LOW PERMEABILITY RESERVOIR, improves recovery ratio.
The activating agent that the present invention provides makes oil-field flooding activating agent specialized, and Focus is hydrophilic
Change.And by the improvement to processing step, and the change to composition of raw materials reduces water filling activity
The cost of agent.Owing to SQ-2000 has hydrophilic group and lipophilic group, its molecule can produce in a solvent
Life aligns, and reaches to change capillary effect.Meanwhile, surfactant is that amphiphilic divides
Son, hydrophilic group is polar group, and lipophilic group is exactly hydrocarbon chain.After surfactant is dissolved in water,
Owing to oleophilic moiety wishes to depart from water, therefore at surface enrichment (referred to as surface adsorption), hydrophilic group
Being inserted in water, lipophilic group erects at the water surface.Equal to the surface of water is become lipophilic group close-packed arrays
Surface, this surface is equivalent to the surface of alkane, and surface tension reduces.Therefore, this activity
Agent reduces profit surface and interface tension force and reduces water injection pressure, stablizes injection water quality and extends waterflood-transmission line
Service life.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail, described in be right
The explanation of the present invention rather than restriction.
Embodiment 1:
The preparation method of a kind of Surfactants Used for Oil field, comprises the following steps:
A) with material percentage calculation, by sulfonic acid: N.N-double hydroxyethyl alkylamide: modified
Dodecyl Polyoxyethylene Ether sodium sulfate: salt: NPE: dodecyl dimethyl
Benzyl ammonium chloride: citric acid: the proportionate relationship configuration raw material of clear water=2:1:4:1:3:3:0.1:10；
B) under conditions of temperature 25 DEG C, add in the ratio in step a) in mixed tune still
Clear water, dodecyl dimethyl benzyl ammonium chloride, sulfonic acid, N.N-double hydroxyethyl alkylamide,
Modified Dodecyl Polyoxyethylene Ether sodium sulfate, quickly stirring 15 minutes, add salt and stir 5 points
Clock, adds NPE, and adds citric acid, and regulation pH is 6.5, stirring
Mix homogeneously gets product, and fill is put in storage, 25kg/ bucket or 210kg/ bucket.
Embodiment 2:
A) with material percentage calculation, by sulfonic acid: N.N-double hydroxyethyl alkylamide: modified
Dodecyl Polyoxyethylene Ether sodium sulfate: salt: NPE: isothiazolone: carbon
Acid sodium: the proportionate relationship configuration raw material of clear water=2:1:4:1:3:3:0.1:10；
B) under conditions of temperature 35 DEG C, add in the ratio in step a) in mixed tune still
Clear water, isothiazolone, sulfonic acid, N.N-double hydroxyethyl alkylamide, modified lauryl alcohol polyoxy
Vinyl Ether sodium sulfate, quickly stirring 15 minutes, add salt and stir 5 minutes, add nonyl phenol
Polyoxyethylene ether, and add sodium carbonate, regulation pH value is 7.0, is uniformly mixed and get final product
Finished product, fill puts in storage, 25kg/ bucket or 210kg/ bucket.
Embodiment 3
A) with material percentage calculation, by sulfonic acid: N.N-double hydroxyethyl alkylamide: modified
Dodecyl Polyoxyethylene Ether sodium sulfate: salt: NPE: dodecyl dimethyl
Benzyl ammonium chloride: sodium carbonate: the proportionate relationship configuration raw material of clear water=2:1:4:1:3:3:0.1:10；
B) under conditions of temperature 45 C, add in the ratio in step a) in mixed tune still
Clear water, dodecyl dimethyl benzyl ammonium chloride, sulfonic acid, N.N-double hydroxyethyl alkylamide,
Modified Dodecyl Polyoxyethylene Ether sodium sulfate, quickly stirring 15 minutes, add salt and stir 5 points
Clock, adds NPE, and adds sodium carbonate, and regulation pH value is 7.5, stirs
Mixing mix homogeneously to get product, fill is put in storage, 25kg/ bucket or 210kg/ bucket.
Embodiment 4
A) with material percentage calculation, by sulfonic acid: N.N-double hydroxyethyl alkylamide: modified
Dodecyl Polyoxyethylene Ether sodium sulfate: salt: NPE: isothiazolone: lemon
Lemon acid: the proportionate relationship configuration raw material of clear water=2:1:4:1:3:3:0.1:10；
B) under conditions of temperature 25 DEG C～45 DEG C, by the ratio in step a) in mixed tune still
Example adds clear water, isothiazolone, sulfonic acid, N.N-double hydroxyethyl alkylamide, modification 12
Polyoxyethylenated alcohol sodium sulfate, quickly stirring 15 minutes, add salt and stir 5 minutes, add
NPE, and add citric acid, regulation pH value is 7.2, and stirring mixing is all
Even getting product, fill is put in storage, 25kg/ bucket or 210kg/ bucket.
Compounding by negative and positive and nonionic surfactant of the present invention, it is achieved live in surface, oil field
The technical performance of property agent (SQ-2000), inexpensive.
The present invention reduces LOW PERMEABILITY RESERVOIR water injection pressure, improves relatively oozing of oil displacement efficiency, oil and water
Rate all rises thoroughly, and two-phase flow scope broadens, and rock wettability offsets to hydrophilic direction,
SQ-2000 surfactant can improve LOW PERMEABILITY RESERVOIR, improves recovery ratio.
The activating agent that the present invention provides makes oil-field flooding activating agent specialized, and Focus is hydrophilic
Change.And by the improvement to processing step, and the change to composition of raw materials reduces water filling activity
The cost of agent.Owing to SQ-2000 has hydrophilic group and lipophilic group, its molecule can produce in a solvent
Life aligns, and reaches to change capillary effect.Meanwhile, surfactant is that amphiphilic divides
Son, hydrophilic group is polar group, and lipophilic group is exactly hydrocarbon chain.After surfactant is dissolved in water,
Owing to oleophilic moiety wishes to depart from water, therefore at surface enrichment (referred to as surface adsorption), hydrophilic group
Being inserted in water, lipophilic group erects at the water surface.Equal to the surface of water is become lipophilic group close-packed arrays
Surface, this surface is equivalent to the surface of alkane, and surface tension reduces.Therefore, this activity
Agent reduces profit surface and interface tension force and reduces water injection pressure, stablizes injection water quality and extends waterflood-transmission line
Service life.
The present invention demonstrates SQ-2000 surfactant by engineering practice should in LOW PERMEABILITY RESERVOIR
Feasibility, for improve LOW PERMEABILITY RESERVOIR oil recovery factor provide method reference.
The present invention is suitable for the special surfactant of oil-field flooding, dependable performance, environmental protection and public nuisance free,
And can effectively prevent injection water quality from going bad, profit surface and interface tension force is greatly lowered, change
Surface of Carbonate Rocks wettability, improve water filling for oil passage hydrophilic, strengthen water filling start and
Involving ability, activating agent has good penetrance simultaneously, can penetrate oil film, cleans rock table
The residual oil in face, reduces water drive residual oil saturation.Rearmounted part replaces slug, replaces to ground
At layer depth, prevent from returning and tell, prolonged stay stratum.It is finally reached raising and injects water displacement efficiency,
Increase the effect of " water filling is for oil ".
Claims (4)
1. the preparation method of a Surfactants Used for Oil field, it is characterised in that comprise the following steps:
A) with material percentage calculation, by sulfonic acid: N.N-double hydroxyethyl alkylamide: modified lauryl alcohol
Polyethenoxy ether sodium sulfate: salt: NPE: water quality stabilizer: pH adjusting agent: clear
The proportionate relationship configuration raw material of water=2:1:4:1:3:3:0.1:10；
B) under conditions of temperature 25 DEG C～45 DEG C, add in the ratio in step a) in reactor
Clear water, water quality stabilizer, sulfonic acid, N.N-double hydroxyethyl alkylamide, modified Dodecyl Polyoxyethylene Ether
Sodium sulfate, quickly stirring 15 minutes, add salt and stir 5 minutes, adds NPE, and
Adding pH adjusting agent, regulation pH value is 6.5-7.5, is uniformly mixed and gets product, and fill is put in storage
?.
The preparation method of Surfactants Used for Oil field the most according to claim 1, it is characterised in that
Described reactor adjusts still for mixed.
The preparation method of Surfactants Used for Oil field the most according to claim 1, it is characterised in that
Described Surfactants Used for Oil field is SQ-2000 surfactant.
The preparation method of Surfactants Used for Oil field the most according to claim 1, it is characterised in that
Described water quality stabilizer is dodecyl dimethyl benzyl ammonium chloride and isothiazolone；PH adjusting agent
For citric acid or sodium carbonate.
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| CN201310478505.4A CN104017553B (en) | 2013-10-12 | 2013-10-12 | A kind of preparation method of Surfactants Used for Oil field |
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| CN201310478505.4A CN104017553B (en) | 2013-10-12 | 2013-10-12 | A kind of preparation method of Surfactants Used for Oil field |
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| CN104017553A CN104017553A (en) | 2014-09-03 |
| CN104017553B true CN104017553B (en) | 2016-10-05 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101255127A (en) * | 2008-04-01 | 2008-09-03 | 江南大学 | Synthesis of aliphatic alcohol polyoxyethylene sulfonate and complex formulation used for tertiary oil recovery displacement agent |
| CN101279936A (en) * | 2007-04-04 | 2008-10-08 | 中国石油化工股份有限公司 | Alkyl phenol sulfonic polyoxyethylene ether sulfate and preparation thereof |
| US7482310B1 (en) * | 2003-11-12 | 2009-01-27 | Kroff Chemical Company, Inc. | Method of fracturing subterranean formations utilizing emulsions comprising acrylamide copolymers |
| CN101462844A (en) * | 2009-01-08 | 2009-06-24 | 广州澳润合成材料有限公司 | Environment protection type efficient aerating powder for shield construction |
-
2013
- 2013-10-12 CN CN201310478505.4A patent/CN104017553B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7482310B1 (en) * | 2003-11-12 | 2009-01-27 | Kroff Chemical Company, Inc. | Method of fracturing subterranean formations utilizing emulsions comprising acrylamide copolymers |
| CN101279936A (en) * | 2007-04-04 | 2008-10-08 | 中国石油化工股份有限公司 | Alkyl phenol sulfonic polyoxyethylene ether sulfate and preparation thereof |
| CN101255127A (en) * | 2008-04-01 | 2008-09-03 | 江南大学 | Synthesis of aliphatic alcohol polyoxyethylene sulfonate and complex formulation used for tertiary oil recovery displacement agent |
| CN101462844A (en) * | 2009-01-08 | 2009-06-24 | 广州澳润合成材料有限公司 | Environment protection type efficient aerating powder for shield construction |
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| CN104017553A (en) | 2014-09-03 |
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