ANALYSIS OF FACTORS INFLUENCING UPON THE PRECISION OF PREDICTION OF TECHNOLOGICAL PARAMETERS OF THE WEST SIBERIA CENOMANIAN DEPOSITS DEVELOPMENT

Abstract

This paper describes the errors in determining the permeability and porosity of Cenomanian gas deposits. First of all, the authors emphasize the importance of reproducing the reservoir conditions as close as possible in the process of core analysis. According to the authors, if the experimental conditions do not closely imitate the in-situ conditions, then the applicable conversation factors or functions should be used. Using this approach in constructing the petrophysical relation-ships and at other stages of reserves estimation will reduce the uncertainty in determination of the gas reserves value. It is also noticed in the article that a number of factors forming the value of error in reservoir parameters in the areas of wells is inevitable. To improve the quality level of the development design it is necessary to take into account a degree of reliability of initial geological and production data.