Study on Oil-Water Interfacial Behaviour of Henan Oilfield

In order to decide the formula of ASP system to be used in Henan oilfield, the weak base ternary composite system compounded with petroleum sulfonate(Ss), polymer and weak base; the alkali ASP system compounded with alkylbenzene sulfonates(Sy), polymer and alkali were studied, and the oil-water interface behaviour of Henan oilfield with weak base ASP system compounded with surfactant SHSA-HN6 and ZL-Ⅱ polymer was evaluated. The results showed that the interfacial tension reduction effect of Weak base ternary system is better than that of Alkali ternary system; the interfacial tension between oil and water can be reduced significantly by the weak base ternary system compounded with surfactant (Ss) and polymer (ZL-Ⅱand KYPAM). After adding 1.2% Na2CO3 to the mixture of surfactant (SHSA-HN6) and polymer, the interfacial tension of Henan oil-water was reduced to the ultra-low level(>10-3mN/m).

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Effect of Clay Content on the Adsorption Loss of Surfactant in ASP Floods Systems

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.225-226.158 ◽

2011 ◽

Vol 225-226 ◽

pp. 158-161 ◽

Cited By ~ 2

Author(s):

Wen Ling Song ◽

Jing Pan ◽

Yue Hong Gao

Keyword(s):

Interfacial Tension ◽

Equilibrium Concentration ◽

Clay Content ◽

Oil Field ◽

Base System ◽

Weak Base ◽

Strong Base ◽

Alkylbenzene Sulfonate ◽

Daqing Oil Field ◽

Better Than

This paper discussed the mechanism of adsorption of the petroleum sulfonate and heavy alkylbenzene sulfonate on reservoir sand mixed with clay of Daqing oil field. The results showed that: the adsorption of surfactant increased with the increasing of the surfactant equilibrium concentration and clay content in the ASP floods systems; interfacial tension decreased with the increasing of surfactant content; the interfacial tension become higher after adsorption on the reservoir sand. Application result of weak base system is better than strong base, because of the lower adsorption and interfacial tension is provided.

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Research on Oil-Water Interfacial Properties Effect of Polymer / Surfactant Binary Flooding System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.201-203.2558 ◽

2011 ◽

Vol 201-203 ◽

pp. 2558-2561 ◽

Cited By ~ 1

Author(s):

Wen Xiang Wu ◽

Zhong Qi Yu

Keyword(s):

Interfacial Tension ◽

Composite System ◽

Oil Field ◽

Compound System ◽

Addition Agent ◽

Low Interfacial Tension ◽

Polymer Compound ◽

Oil Water ◽

Polymer Surfactant ◽

Binary Composite

The formula of surfactant(QY-3、SHSA-HN6、SS) and polymer compound system, and the interfacial characteristics between oil and water of Henan oil field were evaluated, the binary composite system formula adapt to the field was explored. The results show that the binary composite system (surfactant QY-3 and polymer 1630S) and oil-water in Henan can achieve ultra-low interfacial tension(＜10-3mN/m); If the addition agent NaCl was added to the composite system (Surfactant Ss and polymer ZL-Ⅱ or Surfactant Ss and polymer KYPAM) that the interfacial tension between oil and water can be reduced effectively.

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Study on Interface Behaviour of the Weak Alkali Ternary System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.524-527.1905 ◽

2012 ◽

Vol 524-527 ◽

pp. 1905-1909

Author(s):

Wen Xiang Wu ◽

Li Min Wang ◽

Dong Zhang

Keyword(s):

Ternary System ◽

Interfacial Tension ◽

Polymer Concentration ◽

Interfacial Tensions ◽

Order Of Magnitude ◽

Low Interfacial Tension ◽

Concentration Changes ◽

Reduction Effect ◽

Sacrificial Agent

Interfacial tensions between the weak alkali ternary system with surfactant SHSA-HN6 and Henan crude oil were measured. The effects of adding Na2CO3 and Na2CO3 concentration, SHSA-HN6 and polymer concentration on interfacial tensions were examined. The results showed that the interfacial tension reduction effect of the weak alkali ternary system was better than that of the alkali-free binary system, and the ultra-low interfacial tension （10-3 mN/m order of magnitude）for weak alkali ternary system could be reached more rapidly; the influence of polymer concentration changes on static interfacial tension of the weak alkali ternary system was small and the higher the polymer concentration was，the longer the time to reach ultra-low interfacial tension was; the interfacial tension can still be ultra-low when concentration of every component was reduced simultaneously in the weak alkali ternary system; adding Na2CO3 not only can reduce the interfacial tension and but also plays a role of sacrificial agent.

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Synergistic behaviour of ZnO nanoparticles and gemini surfactants on the dynamic and equilibrium oil/water interfacial tension

Physical Chemistry Chemical Physics ◽

10.1039/c5cp00510h ◽

2015 ◽

Vol 17 (11) ◽

pp. 7122-7129 ◽

Cited By ~ 27

Author(s):

Tahereh Fereidooni Moghadam ◽

Saeid Azizian ◽

Shawn Wettig

Keyword(s):

Interfacial Tension ◽

Zno Nanoparticles ◽

Gemini Surfactants ◽

Water Interface ◽

Interfacial Behaviour ◽

Oil Water

In this work the effect of ZnO nanoparticles on the interfacial behaviour of gemini surfactants (12-3-12 and 14-3-14) at the oil/water interface was investigated.

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Study on the Mechanism of Asphaltenes Reducing Oil-Water Interfacial Tension

Chemical Research in Chinese Universities ◽

10.1007/s40242-021-1178-3 ◽

2021 ◽

Author(s):

Yuwen Wang ◽

Tiexin Cheng ◽

Guangdong Zhou

Keyword(s):

Interfacial Tension ◽

Oil Water

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Mechanism of active silica nanofluids based on interface-regulated effect during spontaneous imbibition

Petroleum Science ◽

10.1007/s12182-020-00537-8 ◽

2021 ◽

Author(s):

Xu-Guang Song ◽

Ming-Wei Zhao ◽

Cai-Li Dai ◽

Xin-Ke Wang ◽

Wen-Jiao Lv

Keyword(s):

Contact Angle ◽

Interfacial Tension ◽

Oil Recovery ◽

Dynamic Contact Angle ◽

Liquid Interface ◽

Spontaneous Imbibition ◽

Wettability Alteration ◽

Low Permeability ◽

Oil Water ◽

Solid Liquid

AbstractThe ultra-low permeability reservoir is regarded as an important energy source for oil and gas resource development and is attracting more and more attention. In this work, the active silica nanofluids were prepared by modified active silica nanoparticles and surfactant BSSB-12. The dispersion stability tests showed that the hydraulic radius of nanofluids was 58.59 nm and the zeta potential was − 48.39 mV. The active nanofluids can simultaneously regulate liquid–liquid interface and solid–liquid interface. The nanofluids can reduce the oil/water interfacial tension (IFT) from 23.5 to 6.7 mN/m, and the oil/water/solid contact angle was altered from 42° to 145°. The spontaneous imbibition tests showed that the oil recovery of 0.1 wt% active nanofluids was 20.5% and 8.5% higher than that of 3 wt% NaCl solution and 0.1 wt% BSSB-12 solution. Finally, the effects of nanofluids on dynamic contact angle, dynamic interfacial tension and moduli were studied from the adsorption behavior of nanofluids at solid–liquid and liquid–liquid interface. The oil detaching and transporting are completed by synergistic effect of wettability alteration and interfacial tension reduction. The findings of this study can help in better understanding of active nanofluids for EOR in ultra-low permeability reservoirs.

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Synthesis of aminated polystyrene and its self-assembly with nanoparticles at oil/water interface

e-Polymers ◽

10.1515/epoly-2020-0038 ◽

2020 ◽

Vol 20 (1) ◽

pp. 317-327

Author(s):

Chenliang Shi ◽

Ling Lin ◽

Yukun Yang ◽

Wenjia Luo ◽

Maoqing Deng ◽

...

Keyword(s):

Interfacial Tension ◽

Self Assembly ◽

Carbon Dots ◽

Chain Transfer ◽

Functionalized Polymers ◽

Amino Groups ◽

One Dimensional ◽

Reversible Addition ◽

Oil Water ◽

Chain Transfer Polymerization

AbstractThe influence of density of amino groups, nanoparticles dimension and pH on the interaction between end-functionalized polymers and nanoparticles was extensively investigated in this study. PS–NH2 and H2N–PS–NH2 were prepared using reversible addition–fragmentation chain transfer polymerization and atom transfer radical polymerization. Zero-dimensional carbon dots with sulfonate groups, one-dimensional cellulose nanocrystals with sulfate groups and two-dimensional graphene with sulfonate groups in the aqueous phase were added into the toluene phase containing the aminated PS. The results indicate that aminated PS exhibited the strongest interfacial activity after compounding with sulfonated nanoparticles at a pH of 3. PS ended with two amino groups performed better in reducing the water/toluene interfacial tension than PS ended with only one amino group. The dimension of sulfonated nanoparticles also contributed significantly to the reduction in the water/toluene interfacial tension. The minimal interfacial tension was 4.49 mN/m after compounding PS–NH2 with sulfonated zero-dimensional carbon dots.

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