ГРУППИРОВАНИЕ ОБЪЕКТОВ РАЗРАБОТКИ ПРИ ПРОЕКТИРОВАНИИ МЕРОПРИЯТИЙ ПО УВЕЛИЧЕНИЮ НЕФТЕОТДАЧИ

The analysis of geological and physical and physical and chemical properties of productive formations and formation fluids has been done. The analysis of the data by the principal components’ method leads to the fact that the first two - four components contain the main dispersion part. Having singled out the principal components we may calculate them for various objects and group these objects according to the component values or on the basis of these components we may make up a regression equation by means of which it is possible to single out the sufficient and the insufficient factors. The objects are characterized by a sufficient difference of geological and physical characteristics that further on allows separating the groups. The biggest range of changes is observed on such indices as permeability coefficient, an effective oil saturated capacity, net pay- to- gross coefficient, oil viscosity, paraffin, resins and asphaltenes’ content, oil extraction coefficient. The algorithm of analogue objects’ search for new deposits on the purpose of using the expertise of exploring the deposits being in exploitation for a long time, has been worked out. The objects’ grouping has been performed. The geological structure features of the separated groups of the deposits defined in the grouping allow considering them in the development process when taking technological decisions of different levels. The centers of grouping have been determined and the nearest objects to them have been chosen - polygons of four objects’ groups for conducting further geological technological and technical economic studies. The geological features of various objects’ groups allowing to plan measures of improving exploration systems on the purpose of enhanced oil recovery on the basis of the existing criteria of the enhanced oil recovery methods’ utilization have been determined. The recommendations for each object polygon on conducting measures aimed at enhanced oil recovery, the reduction of water production and effectiveness increase of the object development process have been worked out. It has been proposed to utilize recommendations for the objects of each separated group.