This book focuses on the use of natural surfactants in enhanced oil recovery, providing an overview of surfactants, their types, and different physical-chemical properties used to analyse the efficiency of surfactants. Natural surfactants discuss the history of the surfactants, their classification, and the use of surfactants in petroleum industry. Special attention has been paid to natural surfactants and their advantages over synthetic surfactants, including analysing their properties such as emulsification, interfacial tension, and wettability and how these can be used in EOR. This book offers an overview for researchers and graduate students in the fields of petroleum and chemical engineering, as well as oil and gas industry professionals.

This book addresses unconventional hydrocarbon resources in India and the prospects for their exploitation. Each chapter focuses on a particular unconventional resource, including gas hydrates, coal bed methane and shale, while the book as a whole takes into account the government's projections concerning these resources. The book provides readers with essential information on the nation's energy requirements, methods of exploiting its available unconventional resources, and their contribution to meeting India's energy requirements. It also addresses the various geological conditions that are necessary for the exploration of these resources, and enables readers to understand the challenges that need to be overcome. Its logical, clearly structured chapters make the book an ideal starting point for readers interested in unconventional energy resources. It will especially benefit undergraduate and graduate students in the field of Energy Engineering, as well as academic researchers and industry professionals seeking an overview of the status quo of unconventional hydrocarbon resources in India.