Abstract:
In the present time, the economy of the world is being controlled by the energy sector. The energy resources and reserves are being used as indicator of economy and political stability of a country. Petroleum and related energy reserves of a country constitute its most important assets. The role of hydrocarbon availability, exploration and development is directly related to the overall development and prosperity of the human being. The petroleum exploration and its exploitation have gained special importance over the past few decades to meet the increasing demand of the world energy. Due to its importance this field has developed special interests of the scientists and various hydrocarbon agencies and a number of new geophysical techniques and methods have been developed to explore and exploit the hydrocarbon buried in subsurface geological formations. Geophysical well logging is one of the strong tools which are used to evaluate the formation characteristic features having potential for hydrocarbon development. Well logging, also known as borehole logging is the practice of making a detailed record (log) of the geologic formations penetrated by a borehole. The log may be based either on visual inspection of samples brought to the surface (geological logs) or on physical measurements made by instruments lowered into the hole (geophysical logs). Well logging is done when drilling boreholes for oil and gas, groundwater, minerals, and for environmental and geotechnical studies.
