Geological features of the field regarded in this article require the active application of modern integrated methods for maintenance and construction of high-tech wells. An increase in drilling efficiency improves the profitability of field development and the development of hard-to-recover reserves. Drilling efficiency is proposed to be ensured by complex of methods: geomechanical calculations in real time using geological steering data; cavernosity analysis of the well, taking into account the peculiarities of drilling and lithotypes; evaluation of the geometry of the borehole. Studies have shown that the clays in the upper part of the target formation are most significantly affected by the time factor and pooling out of hole with back-reaming, which contribute to an increase in the vugginess of the borehole. Taking into account geological features during drilling allows accurately adjust the wellbore stability model and the intervals of potential complications by promptly updating the geomechanical model in real time with recommendations. Geomechanical modeling allows to predict a safe drilling window. Reducing the drilling time of the production liner and minimizing the open state of the borehole due to the maximum approximation of the landing depth of the column shoe to the roof of the target formation, as well as minimizing departures into clay intervals during wiring reduces the risks of differential sticking and collapse. Geological steering support provides an increase in the reliability of the analysis of complications and gives a more complete picture during the well construction, which increases the likelihood of making optimal decisions in the future. Monthly updating of the hydrodynamic model for the target reservoir is necessary for the correct assessment of the stress state, selection of the optimal density of the drilling fluid and reduction of the risk of differential sticking. Using the well complexity index allows to evaluate and plan the necessary procedures for the successful construction of a well in similar conditions. The results obtained show that the implementation of recommendations and measures based on geomechanical modeling can ensure the safe construction of a well on the drilled area.
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