The article considers the problems of carrying out comparative assessment of technologies in the market of oil services, engineering and construction services. It is noted that the tender for the provision of oil services is a formal procedure for the subsoil user, is usually signed at low prices and has a low level of quality of the provided service. It is proved that it is useful to carry out comparative assessment of single type, competing, technological solutions within the selected oil service segments using the integral indicator. Comparative assessment algorithm of oil service technologies on the basis of integral indicators is given. It is justified that the proposed method of comparative assessment is relatively simple, but at the same time, it is effective due to the consideration of technological, technical, environmental, mining-ecological and economic factors. As an example small oil company operating on the territory of Timan-Pechora Basin was considered. The algorithm proposed by the authors became the basis for comparison and selection of technologies in the segment of drilling mud (using clay-free drilling mud based on polysaccharides or multi-solution technology of reversible invertible drilling mud), cement slurry (Granz-7 or the facilitated grouting solution) and EOR method (polimers or alkali). The testing of the proposed algorithm for making technological decisions and selecting a specific service provider showed the validity of using not only cost parameters and oil recovery factor, but also other technical and technological parameters.
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