FIELD: oil and gas industry.
SUBSTANCE: as per one version of implementation of method for excluding the effect of associated formations there obtained are measurements, one or more of the data of neutron logging, gamma ray data, seismic data, data of nuclear magnetic resonance, electromagnetic waves, induction, or dielectric permeability data, or acoustic data. Laminated model of earth formation is created. At that, each layer has a set of parametres corresponding to one or more types of obtained measurements attributed to each layer. Spaces of parametres are divided by means of processor into sub-spaces on the basis of relations between parametres. One or more start points are chosen from subspaces. Cost function is minimised by using one or more start points for generation of one or more versions of solutions, at which the effect of associated formations has been excluded. Final solution is chosen from one or more versions of solutions.
EFFECT: improving measurement accuracy of earth formations made in the well.
25 cl, 8 dwg
