19. Geophysical Well Logging

摘要: Publisher Summary Geophysical well logging consists, for the most part, of lowering instrument packages into holes in earth order to measure physical parameters that characterize formations. Originally, was applied principally infer nature fluids filling pores sedimentary rocks is, determine saturations oil, water, and gas. Today, spectrum available measurements is sufficiently broad permit, with varying degrees accuracy, in-situ determination rock density, porosity, major-element constituents clay types, presence fractures their orientation, formation structural stratigraphic dips, permeability fluid flow, naturally occurring radioactive elements, others. Many conventional developed hydrocarbon exploration have been extended other applications such as uranium, potash, copper, iron ores, coal quality, ash content, location potable water. Logging design depart considerably from those encountered laboratory. This arises peculiar hostile environment which takes place. The impact this evident also corrections environmental perturbations log interpretation.