A Study of Relationship Between Oil-Water Interfacial Dilational Rheology and Oil Recovery of Alkaline Flooding
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Abstract
In order to find out the influence of dilational rheology on chemical flooding systems, the dilational rheology of Zhuangxi crude oil/NaOH solutions interface was investigated by DSA100 interfacial dilatational rheometer (KRÜSS, Germany). The results show that the alkaline system, which can enhance oil recovery, mainly depends on its interfacial dilational rheology, rather than interfacial tension. The greater the interfacial dilational elasticity, the higher the oil recovery is. The greater the interfacial dilational viscosity, the lower the oil recovery is. The conclusion is consistent with the change of displacement pressure in the macro displacement experiment and the change of sweep efficiency in the microscopic displacement experiment.
Kurzfassung
Um den Einfluss der Ausdehnungsrheologie auf chemische Flutungssysteme herauszufinden, wurde die Dehnungsrheologie der Grenzfläche zwischen Zhuangxi-Rohöl und NaOH-Lösungen mittels eines Grenzflächenausdehnungsrheometers (DSA100, Krüss, Deutschland) untersucht. Die Ergebnisse machen deutlich, dass ein alkalisches System, das die Erdölgewinnung verbessern kann, hauptsächlich von seiner Grenzflächendehnungsrheologie und weniger von der Grenzflächenspannung abhängt. Je größer die Grenzflächendehnungselastizität ist, umso höher ist die Erdölgewinnung. Je größer die Grenzflächendehnungsviskosität ist, umso geringer ist die Erdölgewinnung. Dieser Schluss ist konsistent mit der Änderung des Verdrängungsdrucks in dem makroskopischen Verdrändungsexperiment und der Änderung des Durchlaufwirkungsgrades im mikroskopischen Verdrändungsexperiment.
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Articles in the same Issue
- Contents/Inhalt
- Contents
- Physical Chemistry
- Linear Polyethers as Additives for AOT-Based Microemulsions: Prediction of Percolation Temperature Changes Using Artificial Neural Networks
- Adsorption and Micellization Behavior of Mixtures of Amphiphilic Drugs with Small Amounts of Bile Salts
- Determination of Shape Transition Concentrations in Self-Assembled Surfactant Micelles by UV-Visible Spectrophotometry
- Synthesis and Colloidal-Chemical Properties of Surfactants Based on Alkyl Amines and Propylene Oxide
- A Study of Relationship Between Oil-Water Interfacial Dilational Rheology and Oil Recovery of Alkaline Flooding
- Mizellar Catalysis
- Best Combination of Promoter and Micellar Catalyst for Room Temperature Rapid Conversion of D-Lyxose to D-Lyxonic Acid in Aqueous Medium
- Novel Surfactants
- Surface and Fluorescence Studies of Bis-Sulfosuccinate Anionic Gemini Surfactants Derived from Dodecanol Using Different Flexible Methylene Chains as Spacers
- The Role of Rhamnolipids in Coffee Ring Deposition and Influence of Metal Ions
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- Study of Tea Saponin Toothpaste