CN103102875A - Oilfield oil extraction additive and preparation method thereof - Google Patents
Oilfield oil extraction additive and preparation method thereof Download PDFInfo
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- CN103102875A CN103102875A CN2011103534740A CN201110353474A CN103102875A CN 103102875 A CN103102875 A CN 103102875A CN 2011103534740 A CN2011103534740 A CN 2011103534740A CN 201110353474 A CN201110353474 A CN 201110353474A CN 103102875 A CN103102875 A CN 103102875A
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Abstract
The invention discloses an oilfield oil extraction additive and a preparation method thereof. The oilfield oil extraction additive is a microemulsion (i.e., nanoemulsion) prepared from a wax substance, a rosin substance, a surfactant, an emulsifier, oleic acid and water in an appropriate ratio. The oilfield oil extraction additive is mainly used for tertiary oil recovery of crude oil. With the additive, surface tension of crude oil remaining in a blowhole drastically reduces, and an oil vein flows out from a narrow neck of the blowhole and coalesces to form an oil belt, thereby exerting an effect of enhancing oil recovery.
Description
Technical field
The present invention relates to a kind of oil extraction in oil field auxiliary agent and preparation method, be applicable to the exploitation of land crude oil oil well, use this auxiliary agent oil well later stage crude production rate is improved, play the effects of recovering the oil more.
Background technology
Oil is non-renewable natural resource, is also widely used low-cost resource in the world at present.The oil field is dropped into and to be developed, how economical and effective, improve petroleum production to greatest extent, be one of important process of field operations, be also the important topic of scientific research.A general oil oil field the early production period, as long as oil well depth reaches oil reservoir, crude oil just can lean on the pressure energy of oil reservoir self to be plucked out of, and is referred to as primary oil recovery.Afterwards, a large amount of water fillings to increase the interior pressure extraction crude oil of oil reservoir, be referred to as secondary oil recovery.After secondary oil recovery, be widely used in the world at present and inject oilfield additive and come the part crude oil that is difficult to exploit out after extraction primary oil recovery and secondary oil recovery, be referred to as tertiary oil recovery.
CN1467257 discloses a kind of method for preparing oilfield additive calcium bromide, and goods are mainly used in well cementation and the well head reparation of oil well.CN101831066A discloses a kind of preparation method of rosin-based surfactant, and goods have the effect of oilfield additive.But the aforesaid method Main Function is not that preparation process is also more complicated for the oilfield additive that improves tar productivity.
The wax microemulsion also is applied in the crude oil tertiary oil recovery as oilfield additive in recent years.General oil extraction in oil field auxiliary agent commonly used mainly is comprised of surfactant-based material.Exist functioning efficiency low, the shortcoming that cost is high.The wax microemulsion preparation can produce ultralow oil-displacing fluid interfacial tension, and the surface tension that remains in the crude oil in blowhole in oil reservoir is sharply reduced, thereby oily arteries and veins can be flowed out from the narrow neck of petrosal foramen, is agglomerated into the oil band; The oil band moves and is plucked out of to producing oil well under the driving of injected water, thereby improves oil recovery factor.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of oil extraction in oil field auxiliary agent and preparation method thereof, oil extraction in oil field auxiliary agent of the present invention is used for crude oil three and recovers the oil, can produce ultralow oil-displacing fluid interfacial tension after injecting oil well, the surface tension that remains in the crude oil in blowhole in oil reservoir is reduced, oily arteries and veins is flowed out from the narrow neck of petrosal foramen, play the effect that improves tar productivity.
Oil extraction in oil field auxiliary agent of the present invention comprises following ingredients, in massfraction:
Wax 8%～20%
Staybelite and/or rosin glyceride 6%～9%
Emulsifying agent 5%～7%
Oleic acid 4%～6%
Additive 0～8%
Water surplus.
The described Wax of oil extraction in oil field auxiliary agent of the present invention is one or more in vegetable wax (Ka Naba wax), oxidized petroleum wax (concrete as 62 ~ No. 68).
The described emulsifying agent of oil extraction in oil field auxiliary agent of the present invention is anion surfactant, one or more in nonionogenic tenside.Anion surfactant is morpholine, one or more in non-ionic surfactant polyoxyethylene, sorbitan monostearate.
Oil extraction in oil field auxiliary agent of the present invention can also contain other suitable additive materials, as polyvalent alcohols such as polyoxyethylene glycol (molecular weight 400 ~ 2000) or glycerine.Additive amount is generally 0～8%.
The preparation method of oil extraction in oil field auxiliary agent of the present invention: add vessel in heating to mix by proportioning Wax, staybelite and/or rosin glyceride, oleic acid, additive and make oil phase material, tensio-active agent is added to the water is heated to be the water material, the water material is under agitation joined mixing and emulsifying in oil phase material, homogenizing is cooling again, is the finished product.
The detailed process of aforesaid method is: Wax, staybelite and/or rosin glyceride, oleic acid, additive are joined by proportioning slowly be heated to 120 ~ 140 ℃ of reactions in stainless steel vessel and made oil phase material in 20 ~ 40 minutes, tensio-active agent is added to the water is heated to 80 ~ 95 ℃ for water, to slowly join in oil phase material mixing and emulsifying under the water high-speed stirring 15 ~ 30 minutes, homogenizing is cooling again, is product of the present invention.
Oil extraction in oil field auxiliary agent of the present invention can be used in crude oil three oil recoveries.This auxiliary agent can produce ultralow oil-displacing fluid interfacial tension after injecting oil well, and the surface tension that remains in the crude oil in blowhole in oil reservoir is reduced, and oily arteries and veins is flowed out from the narrow neck of petrosal foramen, plays the effect that improves tar productivity.It is the carrier substance of preparation that the present invention selects vegetable wax and oxidized petroleum wax, and auxiliary agent is contacted with crude oil in blowhole, has long action time, the characteristic that reactive force is strong.Selecting staybelite, rosin glyceride is the product auxiliary agent, because rosin and rosin glyceride contain hydroxyl, hydroxy-acid group, certain contact force is arranged and can reduce its interfacial tension with oil substances in rock crevice.Select anion surfactant morpholine and non-ionic type polyoxyethylene 20 sorbitan monostearate, make product easily make microemulsion, reduce emulsion particle diameter.Selecting oleic acid is that emulsion adjuvant makes the material system more easily form microemulsion, and emulsion system stability strengthens.
Embodiment
The below is with specific embodiment explanation oil extraction in oil field auxiliary agent of the present invention, and per-cent wherein is massfraction.
Embodiment 1
8.0% Ka Naba wax T3#(is Brazilian to be produced);
6.8% staybelite (Song Benlinization stock company produce);
6.0% oleic acid SP-UA-6518(Sichuan Sipo Chemical Industry Co., Ltd. produces);
3.5% morpholine (production of Wuhan City Kai Tong Fine Chemical Co., Ltd);
2.0% peregal A-20(Fushun chemical industry company limited of Konka produces);
8.0% glycerine (Shanghai many one-tenth Chemical Manufacture);
Water surplus.
Wax, rosin, oleic acid, glycerine are joined by the outfit in embodiment 1 slowly be heated to 126 ± 5 ℃ of reactions in stainless steel vessel and made oil phase material in 30 ± 5 minutes, tensio-active agent is added to the water is heated to 85 ± 5 ℃ for water, mixed breast 20 minutes with slowly joining under the water high-speed stirring in oil phase material, homogenizing is cooling again, is product of the present invention.
Embodiment 2
6.0% Ka Naba wax T3#, (Brazil produces);
No. 5.0%62 oxidized petroleum waxs (Fushun Petrochemical Research Institute's production);
7.3% rosin glyceride (Song Benlinization stock company produce);
6.5% oleic acid SP-UA-6518(Sichuan Sipo Chemical Industry Co., Ltd. produces);
4.0% morpholine (production of Wuhan City Kai Tong Fine Chemical Co., Ltd);
2.0% peregal A-20(Fushun chemical industry company limited of Konka produces);
6.0% poly(oxyethylene glycol) 400 is (in Tianjin and contain safe chemical industry company limited
);
Water surplus.
With Wax, rosin glyceride, oleic acid, polyoxyethylene glycol join by the outfit in embodiment 2 and slowly are heated to 127 ± 5 ℃ of reactions in stainless steel vessel and made oil phase material in 30 ± 5 minutes, tensio-active agent is added to the water is heated to 82 ± 5 ℃ for water, to slowly join in oil phase material mixing and emulsifying under the water high-speed stirring 25 minutes, homogenizing is cooling again, is product of the present invention.
Embodiment 3
6.0% Ka Naba wax T3#, (Brazil produces);
No. 8.0%64 oxidized petroleum waxs (Fushun Petrochemical Research Institute's production);
5.0% rosin glyceride (Song Benlinization stock company produce);
3.0% staybelite (Song Benlinization stock company produce);
7.0% oleic acid SP-UA-6518(Sichuan Sipo Chemical Industry Co., Ltd. produces);
4.0% morpholine (production of Wuhan City Kai Tong Fine Chemical Co., Ltd);
3.0% Macrogol 2000 (east, Tianjin and the safe chemical industry of Sheng company limited
);
Water surplus.
With Wax, rosin glyceride, oleic acid, polyoxyethylene glycol join by the outfit in embodiment 3 and slowly are heated to 129 ± 5 ℃ of reactions in stainless steel vessel and made oil phase material in 26 ± 5 minutes, tensio-active agent is added to the water is heated to 87 ± 5 ℃ for water, mixing and emulsifying in oil phase substance will slowly be joined under the water high-speed stirring, stir again after mixing and emulsifying is complete and stablized 19 ± 5 minutes, homogenizing is cooling again, is product of the present invention.
Embodiment 4
8.0% Ka Naba wax T3#, (Brazil produces);
No. 9.0%66 oxidized petroleum waxs (Fushun Petrochemical Research Institute's production);
9.0% staybelite (Song Benlinization stock company produce);
5.0% oleic acid SP-UA-6518(Sichuan Sipo Chemical Industry Co., Ltd. produces);
3.0% morpholine (production of Wuhan City Kai Tong Fine Chemical Co., Ltd);
1.5% peregal A-20(Fushun chemical industry company limited of Konka produces);
5.0% glycerine (Shanghai many one-tenth Chemical Manufacture);
Water surplus.
First with Wax, staybelite, oleic acid, glycerine join by the outfit in embodiment 4 and slowly are heated to 136 ± 5 ℃ of reactions in stainless steel vessel and made oil phase material in 27 ± 5 minutes, tensio-active agent is added to the water is heated to 88 ± 5 ℃ for water, mixing and emulsifying in oil phase substance will slowly be joined under the water high-speed stirring, stir again after mixing and emulsifying is complete and stablized 19 ± 5 minutes, homogenizing is cooling again, is product of the present invention.
Embodiment 5
10.0% Ka Naba wax T3#, (Brazil produces);
No. 10.0%68 oxidized petroleum waxs (Fushun Petrochemical Research Institute's production);
4.0% staybelite (Song Benlinization stock company produce);
2.0% rosin glyceride (Song Benlinization stock company produce);
5.4% oleic acid SP-UA-6518(Sichuan Sipo Chemical Industry Co., Ltd. produces);
3.5% morpholine (production of Wuhan City Kai Tong Fine Chemical Co., Ltd);
1.5% peregal A-20(Fushun chemical industry company limited of Konka produces);
Water surplus.
With Wax, rosin based material, oleic acid, polyoxyethylene glycol slowly are heated to 128 ± 5 ℃ of reactions and made oil phase material in 30 ± 5 minutes by joining by outfit in embodiment 5 in stainless steel vessel, tensio-active agent is added to the water is heated to 86 ± 5 ℃ for water, mixing and emulsifying in oil phase substance will slowly be joined under the water high-speed stirring, stir again after mixing and emulsifying is complete and stablized 15 ± 5 minutes, homogenizing is cooling again, is product of the present invention.
Claims (10)
1. oil extraction in oil field auxiliary agent, oil extraction in oil field auxiliary agent of the present invention comprises following ingredients, in massfraction:
Wax 8%～20%
Staybelite and/or rosin glyceride 6%～9%
Emulsifying agent 5%～7%
Oleic acid 4%～6%
Additive 0～8%
Water surplus.
2. according to oil extraction in oil field auxiliary agent claimed in claim 1, it is characterized in that: Wax is one or more in vegetable wax and oxidized petroleum wax.
3. according to the described oil extraction in oil field auxiliary agent of claim 1 or 2, it is characterized in that: Wax is Ka Naba wax.
4. according to oil extraction in oil field auxiliary agent claimed in claim 2, it is characterized in that: oxidized petroleum wax is one or more in 62 ~ No. 68 oxidized petroleum waxs.
5. according to oil extraction in oil field auxiliary agent claimed in claim 1, it is characterized in that: emulsifying agent is one or more in anion surfactant and nonionogenic tenside.
6. according to oil extraction in oil field auxiliary agent claimed in claim 5, it is characterized in that: anion surfactant is morpholine, one or more in non-ionic surfactant polyoxyethylene, sorbitan monostearate.
7. according to oil extraction in oil field auxiliary agent claimed in claim 1, it is characterized in that: the additive of oil extraction in oil field auxiliary agent is polyoxyethylene glycol or glycerine.
8. the preparation method of the described oil extraction in oil field auxiliary agent of claim 1, it is characterized in that: add vessel in heating to mix by proportioning Wax, staybelite and/or rosin glyceride, oleic acid, additive and make oil phase material, tensio-active agent is added to the water is heated to be the water material, the water material is under agitation joined mixing and emulsifying in oil phase material, homogenizing is cooling again, is the finished product.
9. it is characterized in that in accordance with the method for claim 8: Wax, staybelite and/or rosin glyceride, oleic acid add vessel in heating to 120 ~ 140 a ℃ reaction to make oil phase material in 20 ~ 40 minutes by proportioning.
10. it is characterized in that in accordance with the method for claim 8: tensio-active agent is added to the water is heated to 80 ~ 95 ℃ for the water material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110353474.0A CN103102875B (en) | 2011-11-10 | 2011-11-10 | Oilfield oil extraction additive and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110353474.0A CN103102875B (en) | 2011-11-10 | 2011-11-10 | Oilfield oil extraction additive and preparation method thereof |
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|---|---|
| CN103102875A true CN103102875A (en) | 2013-05-15 |
| CN103102875B CN103102875B (en) | 2015-05-13 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103694970A (en) * | 2014-01-14 | 2014-04-02 | 河南金马石油科技有限责任公司 | Paraffin emulsion and preparation method thereof |
| CN104232031A (en) * | 2014-08-21 | 2014-12-24 | 江西省萍乡市安华生物科技有限公司 | Rosin cerate lubricant for drilling fluids and preparation method thereof |
| CN107617384A (en) * | 2017-09-11 | 2018-01-23 | 游琪 | A kind of novel oil production auxiliary agent injection allocation apparatus |
| CN109423269A (en) * | 2017-08-23 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of anticalcium type nanoemulsions oil displacement agent |
| CN111019624A (en) * | 2019-12-23 | 2020-04-17 | 郑州洁灵科技有限公司 | Preparation and application of nano microemulsion for oil displacement |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103694970A (en) * | 2014-01-14 | 2014-04-02 | 河南金马石油科技有限责任公司 | Paraffin emulsion and preparation method thereof |
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| CN104232031A (en) * | 2014-08-21 | 2014-12-24 | 江西省萍乡市安华生物科技有限公司 | Rosin cerate lubricant for drilling fluids and preparation method thereof |
| CN104232031B (en) * | 2014-08-21 | 2017-05-24 | 江西省萍乡市安华生物科技有限公司 | Rosin cerate lubricant for drilling fluids and preparation method thereof |
| CN109423269A (en) * | 2017-08-23 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of anticalcium type nanoemulsions oil displacement agent |
| CN109423269B (en) * | 2017-08-23 | 2020-12-22 | 中国石油化工股份有限公司 | Calcium-resistant nano emulsion oil displacement agent |
| CN107617384A (en) * | 2017-09-11 | 2018-01-23 | 游琪 | A kind of novel oil production auxiliary agent injection allocation apparatus |
| CN111019624A (en) * | 2019-12-23 | 2020-04-17 | 郑州洁灵科技有限公司 | Preparation and application of nano microemulsion for oil displacement |
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|---|---|
| CN103102875B (en) | 2015-05-13 |
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