CN103254884A - High-efficient foam compound flooding agent for tertiary oil recovery and preparation method thereof - Google Patents
High-efficient foam compound flooding agent for tertiary oil recovery and preparation method thereof Download PDFInfo
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- CN103254884A CN103254884A CN2013101994217A CN201310199421A CN103254884A CN 103254884 A CN103254884 A CN 103254884A CN 2013101994217 A CN2013101994217 A CN 2013101994217A CN 201310199421 A CN201310199421 A CN 201310199421A CN 103254884 A CN103254884 A CN 103254884A
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Abstract
The invention relates to a high-efficient foam compound flooding agent for tertiary oil recovery and a preparation method thereof, belonging to the technical field of chemical flooding capable of improving the recovery ratio of crude oil from an oilfield. Surfactants used by the high-efficient foam compound flooding agent take sodium alpha-olefin sulfonate as a main surfactant, and the high-efficient foam compound flooding agent is prepared by compounding the surfactant with other anionic surfactants, amphoteric surfactants and anionic-nonionic surfactants. Compared with the prior art, the high-efficient compound flooding agent has the characteristics of good capability of reducing tension of an oil-water interface, good compatibility with high-salinity water, no influence of the salinity on the tension of the oil-water interface, small using quantity and the like. A compound flooding system can improve the recovery rate of the crude oil by above 17%.
Description
Technical field
The invention belongs to and belong to technical field of petroleum extraction, relate to the structure of oil tertiary oil recovery system, a kind of highly efficiency compositional oil-displacing agent that is applied to tertiary oil recovery and preparation method thereof of more specifically saying so.
Background technology
Along with constantly carrying out of oil production, the oil field of many regions has in the world all entered the high moisture and ultra-high water cut stage of development late stage, and underground crude oil is in discontinuous dispersion state, namely contains big water gaging in the underground crude oil, and crude oil can not connect together by sheet.In order to improve the recovery ratio in oil field, increase workable reserve, it is to utilize alkali/polymkeric substance/tensio-active agent ternary composite driving that mainly there is method in prior art, improves oil recovery factor.Wherein, ternary composite driving (alkali-polymkeric substance-tensio-active agent) grows up in caustic waterflooding and polymer flooding basis, also is flooding method the most widely at present.Though can improve oil recovery factor in a large number, wherein contained a large amount of alkali all bring huge injury near the stratum the oil field and oil well etc.The use of alkali causes that polyvalent ion precipitates, rock forming mineral is molten turbid, destroys oil reservoir and structure of oil well, badly damaged stratum; Simultaneously, need to increase cost for oil production every just cleaning a barrel with regard to 10-15 days.
In order to solve the shortcoming and deficiency that exists in alkali/polymkeric substance/tensio-active agent ternary composite driving oil-displacing agent industrial application engineering, its key problem is that development is functional, the promoting agent system that stability is strong.The single-activity agent mainly is alkylbenzene sulfonate on the market, products such as sodium lignosulfonate, it is undesirable to reduce the oil water interfacial tension ability, and it is relatively poor with the local water compatibleness, therefore need a kind of washing oil ability strong, good stability is good with the local water compatibleness, oil water interfacial tension is low, ageing-resistant high-efficient oil-displacing agent.
Summary of the invention
Technical assignment of the present invention is at above-mentioned the deficiencies in the prior art, provides a kind of oil displacement efficiency good, and is good with the local water compatibleness, can form less than 1 * 10 with crude oil
-3The highly efficiency compositional oil-displacing agent that is applied to tertiary oil recovery of mN/m ultra low interfacial tension.The invention provides following technical scheme for achieving the above object:
A kind of efficient foam compound oil displacement agent for tertiary oil recovery of the present invention, this oil-displacing agent is composed of the following components by weight percentage:
Alpha-olefin sodium sulfonate 0.15～2%,
Negatively charged ion-nonionogenic tenside 0.15～3%,
Amphoterics 0.08～0.15%,
All the other add water to 100%;
In above-mentioned oil-displacing agent composition, the alpha-olefin sodium sulfonate is main tensio-active agent, some kinds of negatively charged ion-nonionogenic tensides, and amphoterics is through composite formation oil-displacing agent; This oil-displacing agent good stability, high temperature resistant, anti-high salinity, it is strong to reduce oil water interfacial tension;
Above-mentioned negatively charged ion-nonionogenic tenside is one or more in fatty alcohol-polyoxyethylene ether sodium sulfonate, dodecanol Soxylat A 25-7 sodium sulfonate, the tetradecanol Soxylat A 25-7 sodium sulfonate;
Above-mentioned amphoterics is one or more in lauryl hydroxyl sulfo betaine, lauroyl amido CAB, the 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazole quinoline trimethyl-glycine;
Above-mentioned highly efficiency compositional oil-displacing agent, wherein water is concentrated water.
The preparation method of a kind of efficient foam compound oil displacement agent for tertiary oil recovery of the present invention is characterized in that having following preparation process:
With 0.15～3% negatively charged ion-nonionogenic tenside, 0.08～0.15% amphoterics, the abundant mixing of 0.15～2% alpha-olefin sodium sulfonate, add and have in the reactor of whipping appts, add water to 100%, stir following 85 ℃ of reactions 3 hours, make oil-displacing agent.
The highly efficiency compositional oil-displacing agent that is applied to tertiary oil recovery of the present invention compared with prior art has following substantive distinguishing features:
(1) is used for the tertiary oil recovery process, need not alkali and can increase substantially the oil reservoir tar productivity, overcome the huge injury that alkali brings near the stratum the oil field and oil well etc. in the complex oil displacing process.
(2) related raw material is the fine chemicals of suitability for industrialized production, and raw material is easy to get, and is easy to realize that cost is low.
(3) this highly efficiency compositional oil-displacing agent can effectively reduce oil water interfacial tension, is not more than 30000mg/L with salinity, and the concentrated water compatibleness that calcium ions and magnesium ions concentration is not more than 800mg/L is good, and the reduction oil water interfacial tension is not influenced by salinity.
Embodiment
After now specific embodiments of the invention being described in.
Employed reagent and instrument are as follows among the embodiment:
(1) uses reagent
Alpha-olefin sodium sulfonate, fatty alcohol-polyoxyethylene ether sodium sulfonate, dodecanol Soxylat A 25-7 sodium sulfonate, tetradecanol Soxylat A 25-7 sodium sulfonate, lauryl hydroxyl sulfo betaine, lauroyl amido CAB, 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazole quinoline trimethyl-glycine (all having commercially available)
(2) use instrument
Interfacial tensimeter, standard Luo Shi Latherometer, imitation oil displacement experiment experimental installation are dripped in the STV20 rotation.
Embodiment 1
With alpha-olefin sodium sulfonate 1.5g, fatty alcohol-polyoxyethylene ether sodium sulfonate 1.5g, lauryl hydroxyl sulfo betaine 0.9g,
All the other add water 1000g, pour in the reactor that has whipping appts, stir following 85 ℃ of reactions 3 hours, make oil-displacing agent.
85 ℃ of temperature.Salinity 30000mg/L(Ca
2++ Mg
2+=800mg/L), use the Luo Shi Latherometer to record foam half
The phase of declining is 120min, and foam volume is 220mL; Use the STV20 rotation to drip interfacial tensimeter, under 5000 rev/mins of conditions of speed of rotation, recording minimum oil water interfacial tension is 2.0 * 10
-3MN/m.Use the imitation oil displacement experiment experimental installation, perm-plug method 1.5 μ m
2Under the condition, record the result and can improve recovery ratio 15.0%.
Embodiment 2
With alpha-olefin sodium sulfonate 2.0g, fatty alcohol-polyoxyethylene ether sodium sulfonate 2.0g, lauroyl amido CAB 1.0g, all the other add water 1000g, pour in the reactor that has whipping appts, stir following 85 ℃ of reactions 2.5 hours, make oil-displacing agent.
80 ℃ of temperature.Salinity 28000mg/L(Ca
2++ Mg
2+=700mg/L), use the Luo Shi Latherometer to record foam half
The phase of declining is 140min, and foam volume is 230mL; Use the STV20 rotation to drip interfacial tensimeter, under 5000 rev/mins of conditions of speed of rotation, recording minimum oil water interfacial tension is 3.0 * 10
-3MN/m.Use the imitation oil displacement experiment experimental installation, perm-plug method 1.5 μ m
2Under the condition, record the result and can improve recovery ratio 14.5%.
Embodiment 3
Alpha-olefin sodium sulfonate 2.0g, dodecanol Soxylat A 25-7 sodium sulfonate 2.0g, 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazole quinoline trimethyl-glycine 1.0g, all the other add water 1000g, pour in the reactor that has whipping appts, stir following 85 ℃ of reactions 2 hours, make oil-displacing agent.
85 ℃ of temperature.Salinity 25000mg/L(Ca
2++ Mg
2+=800mg/L), use the Luo Shi Latherometer to record foam half
The phase of declining is 150min, and foam volume is 240mL; Use the STV20 rotation to drip interfacial tensimeter, under 5000 rev/mins of conditions of speed of rotation, recording minimum oil water interfacial tension is 1.0 * 10
-3MN/m.Use the imitation oil displacement experiment experimental installation, perm-plug method 1.5 μ m
2Under the condition, record the result and can improve recovery ratio 17.1%.
Embodiment 4
Alpha-olefin sodium sulfonate 2.0g, dodecanol Soxylat A 25-7 sodium sulfonate 2.0g, lauroyl amido CAB 1.0g, all the other add water 1000g, pour in the reactor that has whipping appts, stir following 85 ℃ of reactions 3 hours, make oil-displacing agent.
85 ℃ of temperature.Salinity 25000mg/L(Ca
2++ Mg
2+=850mg/L), use the Luo Shi Latherometer to record foam half
The phase of declining is 160min, and foam volume is 234mL; Use the STV20 rotation to drip interfacial tensimeter, under 5000 rev/mins of conditions of speed of rotation, recording minimum oil water interfacial tension is 2.3 * 10
-3MN/m.Use the imitation oil displacement experiment experimental installation, perm-plug method 1.5 μ m
2Under the condition, record the result and can improve recovery ratio 16.5%.
Embodiment 5
Alpha-olefin sodium sulfonate 2.0g, dodecanol Soxylat A 25-7 sodium sulfonate 2.0g, lauryl hydroxyl sulfo betaine 1.0g, all the other add water 1000g, pour in the reactor that has whipping appts, stir following 85 ℃ of reactions 3 hours, make oil-displacing agent.
85 ℃ of temperature.Salinity 30000mg/L(Ca
2++ Mg
2+=800mg/L), use the Luo Shi Latherometer to record foam half
The phase of declining is 160min, and foam volume is 234mL; Use the STV20 rotation to drip interfacial tensimeter, under 5000 rev/mins of conditions of speed of rotation, recording minimum oil water interfacial tension is 2.3 * 10
-3MN/m.Use the imitation oil displacement experiment experimental installation, perm-plug method 1.5 μ m
2Under the condition, record the result and can improve recovery ratio 16.5%.
Embodiment 6
Alpha-olefin sodium sulfonate 2.0g, fatty alcohol-polyoxyethylene ether sodium sulfonate 2.0g, 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazole quinoline trimethyl-glycine 1.0g, all the other add water 1000g, pour in the reactor that has whipping appts, stir following 85 ℃ of reactions 3 hours, make oil-displacing agent.
85 ℃ of temperature.Salinity 30000mg/L(Ca
2++ Mg
2+=800mg/L), use the Luo Shi Latherometer to record foam half
The phase of declining is 145min, and foam volume is 212mL; Use the STV20 rotation to drip interfacial tensimeter, under 5000 rev/mins of conditions of speed of rotation, recording minimum oil water interfacial tension is 3.5 * 10
-3MN/m.Use the imitation oil displacement experiment experimental installation, perm-plug method 1.5 μ m
2Under the condition, record the result and can improve recovery ratio 16.2%.
Embodiment 7
Alpha-olefin sodium sulfonate 2.0g, tetradecanol Soxylat A 25-7 sodium sulfonate 2.0g, 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazole quinoline trimethyl-glycine 1.0g, all the other add water 1000g, pour in the reactor that has whipping appts, stir following 85 ℃ of reactions 3 hours, make oil-displacing agent.
85 ℃ of temperature.Salinity 30000mg/L(Ca
2++ Mg
2+=800mg/L), use the Luo Shi Latherometer to record foam half
The phase of declining is 141min, and foam volume is 236mL; Use the STV20 rotation to drip interfacial tensimeter, under 5000 rev/mins of conditions of speed of rotation, recording minimum oil water interfacial tension is 1.4 * 10
-3MN/m.Use the imitation oil displacement experiment experimental installation, perm-plug method 1.5 μ m
2Under the condition, record the result and can improve recovery ratio 17.1%.
Embodiment 8
Alpha-olefin sodium sulfonate 2.0g, tetradecanol Soxylat A 25-7 sodium sulfonate 2.0g, lauryl hydroxyl sulfo betaine 1.0g, all the other add water 1000g, pour in the reactor that has whipping appts, stir following 85 ℃ of reactions 3 hours, make oil-displacing agent.
85 ℃ of temperature.Salinity 30000mg/L(Ca
2++ Mg
2+=800mg/L), use the Luo Shi Latherometer to record foam half
The phase of declining is 161min, and foam volume is 203mL; Use the STV20 rotation to drip interfacial tensimeter, under 5000 rev/mins of conditions of speed of rotation, recording minimum oil water interfacial tension is 3.2 * 10
-3MN/m.Use the imitation oil displacement experiment experimental installation, perm-plug method 1.5 μ m
2Under the condition, record the result and can improve recovery ratio 14.1%.
Claims (2)
1. efficient foam compound oil displacement agent that is used for tertiary oil recovery, this oil-displacing agent is composed of the following components by weight percentage:
Alpha-olefin sodium sulfonate 0.15～2%,
Negatively charged ion-nonionogenic tenside 0.15～3%,
Amphoterics 0.08～0.15%,
All the other add water to 100%;
In above-mentioned oil-displacing agent composition, the alpha-olefin sodium sulfonate is main tensio-active agent, some kinds of negatively charged ion-nonionogenic tensides, and amphoterics is through composite formation oil-displacing agent; This oil-displacing agent good stability, high temperature resistant, anti-high salinity, it is strong to reduce oil water interfacial tension;
Above-mentioned negatively charged ion-nonionogenic tenside is one or more in fatty alcohol-polyoxyethylene ether sodium sulfonate, dodecanol Soxylat A 25-7 sodium sulfonate, the tetradecanol Soxylat A 25-7 sodium sulfonate;
Above-mentioned amphoterics is one or more in lauryl hydroxyl sulfo betaine, lauroyl amido CAB, the 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazole quinoline trimethyl-glycine;
Above-mentioned highly efficiency compositional oil-displacing agent, wherein water is concentrated water.
2. preparation method who is used for the efficient foam compound oil displacement agent of tertiary oil recovery is characterized in that having following preparation process:
With 0.15～3% negatively charged ion-nonionogenic tenside, 0.08～0.15% amphoterics, the abundant mixing of 0.15～2% alpha-olefin sodium sulfonate, add and have in the reactor of whipping appts, add water to 100%, stir following 85 ℃ of reactions 3 hours, make oil-displacing agent.
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Cited By (14)
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|---|---|---|---|---|
| CN103409123A (en) * | 2013-09-04 | 2013-11-27 | 上海海瑰化工科技有限公司 | Application of glycine betaine surface active agent system in chemical oil displacement |
| CN103881683A (en) * | 2014-02-26 | 2014-06-25 | 中国石油化工股份有限公司 | Foaming agent for plugging gas channeling in displacement of reservoir oil by using CO2 |
| CN104694106A (en) * | 2015-03-05 | 2015-06-10 | 黑龙江信维源化工有限公司 | Sulfonate surfactant suitable for weak-alkali ternary compound oil displacement and application of sulfonate surfactant |
| CN104974728A (en) * | 2014-11-28 | 2015-10-14 | 涟水新源生物科技有限公司 | Oil-water ultralow-interface-tension alkaline-free oil-displacing agent, alkaline-free chemical composite oil-displacing agent and application thereof in tertiary oil recovery |
| CN106978156A (en) * | 2017-04-12 | 2017-07-25 | 中国石油化工股份有限公司 | A kind of high temperature viscosity reduction foaming agent composition and high temperature viscosity reduction foaming agent and preparation method thereof |
| CN107880865A (en) * | 2017-11-01 | 2018-04-06 | 中国石油天然气股份有限公司 | Low-interfacial-tension foam oil displacement agent and preparation method thereof |
| CN109401743A (en) * | 2017-08-16 | 2019-03-01 | 中国石油化工股份有限公司 | Salt tolerant acidproof water pumping gas production foam discharging agent composition and the preparation method and application thereof |
| CN110317598A (en) * | 2018-03-30 | 2019-10-11 | 中国石油化工股份有限公司 | Improve compact reservoir CO2Drive the aqueous solution of effect and its preparation method and application method |
| CN110343515A (en) * | 2018-04-03 | 2019-10-18 | 中国石油化工股份有限公司 | Like salt oil displacement agent and combinations thereof and the application in the displacement of reservoir oil of stratum |
| CN110643338A (en) * | 2019-10-17 | 2020-01-03 | 大港油田集团有限责任公司 | Corrosion inhibitor with oil displacement effect |
| CN111073622A (en) * | 2019-12-03 | 2020-04-28 | 德仕能源科技集团股份有限公司 | Surfactant composition for improving recovery ratio and preparation method and application thereof |
| CN111303037A (en) * | 2019-05-29 | 2020-06-19 | 南京师范大学 | Zwitterionic oil-displacing agent and preparation method and application thereof |
| CN113292982A (en) * | 2021-06-02 | 2021-08-24 | 中国石油大学(华东) | Viscoelastic surfactant foam system and preparation method and application thereof |
| CN113943564A (en) * | 2021-10-26 | 2022-01-18 | 扬州润达油田化学剂有限公司 | Compound ultra-low interfacial tension surfactant and preparation method thereof |
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| CN103409123A (en) * | 2013-09-04 | 2013-11-27 | 上海海瑰化工科技有限公司 | Application of glycine betaine surface active agent system in chemical oil displacement |
| CN103881683A (en) * | 2014-02-26 | 2014-06-25 | 中国石油化工股份有限公司 | Foaming agent for plugging gas channeling in displacement of reservoir oil by using CO2 |
| CN103881683B (en) * | 2014-02-26 | 2016-08-17 | 中国石油化工股份有限公司 | A kind of for CO2the displacement of reservoir oil blocks the foaming agent of has channeling |
| CN104974728A (en) * | 2014-11-28 | 2015-10-14 | 涟水新源生物科技有限公司 | Oil-water ultralow-interface-tension alkaline-free oil-displacing agent, alkaline-free chemical composite oil-displacing agent and application thereof in tertiary oil recovery |
| CN104694106A (en) * | 2015-03-05 | 2015-06-10 | 黑龙江信维源化工有限公司 | Sulfonate surfactant suitable for weak-alkali ternary compound oil displacement and application of sulfonate surfactant |
| CN106978156A (en) * | 2017-04-12 | 2017-07-25 | 中国石油化工股份有限公司 | A kind of high temperature viscosity reduction foaming agent composition and high temperature viscosity reduction foaming agent and preparation method thereof |
| CN109401743B (en) * | 2017-08-16 | 2021-05-11 | 中国石油化工股份有限公司 | Foam scrubbing agent composition for salt-resistant acid-resistant water drainage and gas production and preparation method and application thereof |
| CN109401743A (en) * | 2017-08-16 | 2019-03-01 | 中国石油化工股份有限公司 | Salt tolerant acidproof water pumping gas production foam discharging agent composition and the preparation method and application thereof |
| CN107880865A (en) * | 2017-11-01 | 2018-04-06 | 中国石油天然气股份有限公司 | Low-interfacial-tension foam oil displacement agent and preparation method thereof |
| CN107880865B (en) * | 2017-11-01 | 2020-03-10 | 中国石油天然气股份有限公司 | Low-interfacial-tension foam oil displacement agent and preparation method thereof |
| CN110317598A (en) * | 2018-03-30 | 2019-10-11 | 中国石油化工股份有限公司 | Improve compact reservoir CO2Drive the aqueous solution of effect and its preparation method and application method |
| CN110317598B (en) * | 2018-03-30 | 2021-09-14 | 中国石油化工股份有限公司 | Enhancement of compact reservoir CO2Flooding effect aqueous solution and preparation method and application method thereof |
| CN110343515A (en) * | 2018-04-03 | 2019-10-18 | 中国石油化工股份有限公司 | Like salt oil displacement agent and combinations thereof and the application in the displacement of reservoir oil of stratum |
| CN110343515B (en) * | 2018-04-03 | 2022-04-12 | 中国石油化工股份有限公司 | Salt-loving oil-displacing agent, composition thereof and application thereof in stratum oil displacement |
| CN111303037A (en) * | 2019-05-29 | 2020-06-19 | 南京师范大学 | Zwitterionic oil-displacing agent and preparation method and application thereof |
| CN110643338A (en) * | 2019-10-17 | 2020-01-03 | 大港油田集团有限责任公司 | Corrosion inhibitor with oil displacement effect |
| CN111073622B (en) * | 2019-12-03 | 2021-11-23 | 德仕能源科技集团股份有限公司 | Surfactant composition for improving recovery ratio and preparation method and application thereof |
| CN111073622A (en) * | 2019-12-03 | 2020-04-28 | 德仕能源科技集团股份有限公司 | Surfactant composition for improving recovery ratio and preparation method and application thereof |
| CN113292982A (en) * | 2021-06-02 | 2021-08-24 | 中国石油大学(华东) | Viscoelastic surfactant foam system and preparation method and application thereof |
| CN113292982B (en) * | 2021-06-02 | 2023-02-17 | 中国石油大学(华东) | Viscoelastic surfactant foam system and preparation method and application thereof |
| CN113943564A (en) * | 2021-10-26 | 2022-01-18 | 扬州润达油田化学剂有限公司 | Compound ultra-low interfacial tension surfactant and preparation method thereof |
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Application publication date: 20130821 |