Quantitative estimation of gas-saturation factor using data of neutron investigations in gas-oil accumulation of Nizhnee Povolzh'e main fields

Problems are discussed of the efficiency of neutron research in boreholes (neutron-gamma logging, thermal neutron logging, epithermal neutron logging, pulsed neutron-neutron logging) based on the mean error involved in the determination of gas saturation and the sensitivity of its estimation. A technique is presented of the calculation of the gas saturation coefficient by the neutron-gamma logging method. The efficiency of the proposed techique is illustrated by providing specific examples