Nuclear geophysics in prospecting, exploration and development of oil and gas fields

Abstract Nuclear-geophysics investigations are widely and successfully used in prospecting, exploration and development of oil and gas fields. These methods are most efficient in the further exploration of producing oil fields, the control of oil-and-gas field development and in the calculation of reserves of large oil and gas fields. Specific nuclear-geophysical methods (conventional and spectrometric γ-logging, γ−γ logging, neutron logging, pulsed neutron logging and its modifications, nuclear magnetic resonance logging), techniques of application, examples of resolved problems and the specification for down-hole equipment are discussed in this review.