Chemical Nanofluids in Enhanced Oil Recovery: Fundamentals and Applications

ISBN-13: 9780367425241 / Angielski / Twarda / 2021 / 150 str.

Rahul Saha; Pankaj Tiwari; Ramgopal V. S. Uppaluri

Opis

The text discusses key chemical nanofluid enhanced oil recovery techniques for extracting residual crude oil form the reservoirs. It will serve as an ideal guide for graduate students and academic researchers in the field of chemical and petroleum engineering.

Spis treści

1 Introduction to Chemical and Nanofluids Induced Oil Recovery 1.1 Importance of Crude Oil 1.2 Crude Oil - Demands and Supply 1.3 Enhanced and Improved Oil Recovery 1.4 Chemical Enhanced Oil Recovery 1.4.1 Capillary Number 1.4.2 Interfacial Tension (IFT) 1.4.3 Emulsification 1.4.4 Displacement Efficiency 1.4.5 Mobility Ratio 1.4.6 Wettability Alteration 1.5 Criteria for EOR and Chemical EOR 1.6 Overview of Chemical and Chemical-Nanofluid EOR 1.7 Complexities and literature lacuna for Chemical and Chemical-Nanofluid EOR 2 Alkali flooding – Mechanisms Investigation 2.1 Introduction to alkali flooding 2.2 IFT between crude oil and alkaline solution 2.3 Alkali flooding in sandpack 2.3.1 Alkali concentration on oil recovery 2.3.2 Extent of emulsification and size distribution of droplets 2.3.3 Slug size on residual oil recovery 2.3.4 Injection pattern on oil recovery 2.3.5 Alkali injection rate for oil recovery 2.4 Neutralization and saponification of crude oil 2.5 Wettability alteration of reservoir rock 2.6 Overall factors deciding oil recovery 2.7 Conclusions 3 Alkali and Surfactant Flooding 3.1 Introduction to alkali-surfactant flooding 3.2 Selection of alkali based on IFT 3.2.1 IFT between crude oil and different alkalis 3.2.2 Temperature and salinity effect on alkali-crude IFT 3.3 Selection of surfactants based on IFT 3.3.1 IFT between crude oil and different surfactants 3.3.2 Synergy of emulsification and IFT 3.3.3 Thermal stability of surfactants 3.4 Formulation of optimal surfactant composition 3.4.1 Dynamic IFT of combined surfactants 3.4.2 Influence of temperature and salinity on optimum surfactant composition 3.4.3 Adsorption behaviour of optimum surfactant composition 3.5 IFT between alkali-surfactant combinations 3.6 Wettability Alteration with different chemicals 3.7 Berea core flooding for oil recovery 3.8 Conclusions 4 Surfactant Adsorption Characteristics on Reservoir Rock 4.1 Introduction 4.2 Characterization of rock samples 4.3 Interfacial tension between crude oil and surfactant 4.3.1 IFT behaviour using different surfactants 4.3.2 IFT behaviour with formation water 4.4 Thermal stability of surfactants 4.4.1 IFT of aged and non-aged surfactant samples 4.5 Adsorption isotherms 4.5.1 Adsorption kinetic models 4.6 Influence of salinity and temperature on adsorption capacity 4.7 Adsorption thermodynamic parameters 4.8 Role of rock minerals on adsorption quantity 4.9 Conclusions 5 Nanofluid Flooding for Oil Recovery 5.1 Introduction to nanofluid flooding 5.2 Methods to evaluate nanofluid stability 5.3 Influence of nanofluid on rheological properties 5.4 Influence of nanofluid on interfacial tension 5.5 Effect of nanofluid on emulsion properties 5.5.1 Nanofluid for emulsion stability 5.5.2 Nanofluid for creaming index 5.5.3 Nanofluid for emulsion viscosity 5.6 Influence of Nanofluid on Wettability Alteration 5.7 Nanofluid flooding for oil recovery 5.8 Identification of nanoparticles in emulsion and rock surfaces 5.9 Nanofluid field projects and technical challenges 5.10 Conclusions 6 Problems and Challenges in Chemical EOR 6.1 Introduction 6.2 Limitation of chemical EOR 6.2.1 Precipitation and scaling 6.2.2 Formation damage 6.2.3 Treatment of produced emulsion 6.2.4 Chemical separation 6.2.5 Water disposal 6.2.6 Challenges 6.3 Case Studies on challenges of chemical EOR 6.4 Technical solutions for chemical EOR 6.5 Chemical EOR: Laboratory and pilot scale studies Chapter 7 Application of Nanotechnology in Unconventional Reservoirs 7.1 Introduction 7.2 Hydraulic fracturing fluid 7.3 Limitation of hydraulic fracturing fluid 7.4 Nanotechnology in unconventional reservoir 7.4.1 Nanoparticles for hydraulic fracturing 7.4.2 Nanoparticles impact on proppant 7.4.3 Nanoparticles as fluid loss control agent 7.4.4 Nanoparticles in sensors 7.4.5 Nanoparticles in unconventional gas reservoirs 7.5 Field applications and challenges in unconventional reservoirs