OIL AND GAS FIELDS OF ORENBURG REGION ILLUSTRATE APPLICATION OF METHODS SPECIFYING INITIAL DATA TO DEVELOP GEOLOGICAL MODELS
The article considers basic problems arising while specifying geological structure of fields’ productive formations by means of correlation of sections in case of partial or complete absence of initial standard methods of geological well logging (GWL) on a scale of 1:200, in case of formations’ incomplete opening as well as different types of correlation of formations’ frontiers, thus inspiring construction of incorrect geological and hydrodynamic models. The data obtained from neighboring wells and results of data initial interpretation with account of formations occurrence character should be used for specification of the missing information required for development of a geological model, while formations zonal boundaries of wells whole fund should be outlined in one and the same way with regard of reference surfaces, both regional and local. The results of preliminary constructions should be checked by means of mathematical calculations to assess the correct choice of absolute marks of wells with the aim of their further usage.