Oil flooding in carbonate reservoirs management
В Ш Мухаметшин
Abstract
The article presents the analysis and generalization of the process of deposits flooding in the carbonate reservoirs of the Tournaisian stage Kizelovsky horizon of one relatively homogeneous group of fields of the Volga-Ural oil and gas province which was carried out in order to obtain the possibility of increasing the water injection managing efficiency into the reservoir to increase the oil recovery. Geological and physical parameters having a predominant effect on the sweeping efficiency and the injectivity profile variation along the thickness in injection wells have been identified. Models making it possible to assess and predict the injection sweep factor and variation of the injectivity profile by thickness using current geological and field information both at the stage of putting fields into development and at the stage of full drilling out of deposits have been obtained. The obtained results are proposed to be used to improve the development management efficiency both at the objects of study themselves and at analogue deposits. Keywords: development management; carbonate reservoir; flooding; multivariate models; injection sweep ratio; correlation coefficient; injectivity profile.