Paleo-geomorphic prerequisites for rocks-collectors formation at the Astrakhan gas-condensate deposit

Abstract

On the basis of Lower Permian sediments lithology and thickness studies a paleogeomorphological analysis of pre-Lower Permian surface is given and a paleogeomorphological map is compiled for the Astrakhan gas-condensate depos't area. Four parts are distinguished within the area differing in endogenous and exogenous processes rate, each part being characterized by a special set of landforms. Processes are described which are favourable for filtering properties and capacity of productive rocks. Distribution of various types of collectors is described.