Abstract:

The object of the study in the article is the complicated intervals for drilling a well in the South field in order to justify the choice of drilling fluid. The following information and calculations are provided when substantiating the choice of drilling fluid for drilling a complicated interval: the choice of the composition of the drilling fluid in depth intervals; the choice of indicators of the properties of the washing fluid at intervals of depth; calculation of materials and chemicals for the preparation of drilling mud. The article used the geological and technical data of a vertical well drilling project on the Yuzhnoye field of LLC «Yuganskneftegaz».

Keywords: rationale for choosing a drilling fluid; complicated interval drilling; general information on drilling fluids; substantiation of the choice of type of washing fluid at intervals of depths; selection of drilling fluid composition at depth intervals; the c