• Geophysics
    Petroleum - English

    Geophysical Techniques

    Author: Mustafa AbdulSattar Gravitational, Magnetic, Radioactive and Thermal are depend on the rock inherent properties Like (Density, Magnetism, temperature and radioactive properties) —-Passive Electric–natural Currents or Artificial Electrical Source—passive Seismic-Artificial Source of Energy —Active   The Gravity Method: The weight of any body depends on the force of gravity at the spot. The force of gravity various with elevation, rock density, latitude, and topography. A mass suspended from spring, the amount of spring stretching is proportional to the force of gravity. F=m . g g: Acceleration of gravity. since mass is constant, then stretch variations determine the variations in the acceleration of gravity (g). The GRAVIMETER instrument used to measure…