DEFORMACJE ZANIECHANYCH, PŁYTKICH ODWIERTÓW PRODUKCYJNYCH ROPY NAFTOWEJ I GAZU W ŚWIETLE BADAŃ MODELOWYCH

Abstract

DEFORMATION OF ABANDONED SHALLOW OIL AND GAS WELLS IN THE LIGHT OF MODELLINGAbstract. The paper presents conclusions of modelling research of inappropriately liquidated shallow production oil wells. For given conditions of pressure and temperature, characteristic deformations of the well's cross-section were determined, depending on the behavior of fluids that fill the borehole. It was proven that in the analyzed conditions, convergence of abandoned wells is not equivalent to the borehole liquidation, as its open space still allows for contacts of reservoir fluids, posing a threat of pollution to groundwater and ground surface.