One of the largest oil fields on the Yamal Peninsula, the Field NP is characterised by complex geological settings. Massive gas caps pose significant complications to the extraction of large oil reserves occurring immediately below them. In such conditions, new approaches are required to achieve economically viable production. This involves well construction based on a fundamentally new configuration and the use of new technologies. When drilling wells that penetrate more than one target reservoir, the legislation requires performance monitoring and separate production allocation for each reservoir. The article dwells on the first case of separate production allocation in a multilateral well completed with the TAML-1 solution. The well penetrates two reservoirs with different porosity and permeability, using the dynamic quantum PLT technology. The well was drilled taking into account the properties of the impermeable top of one of the reservoirs.

The main type of geological and technical measures in the oil fields of Western Siberia today is hydraulic fracturing. The widespread use of this method of intensifying oil production is due to its undeniable advantages over other technologies. However, hydraulic fracturing is not without significant drawbacks - clogging of the bottomhole zone with proppant and products of chemical reactions, as well as premature watering of well products. All of the above is the reason for the relevance of improving this event. The FiberFrac technology is proposed, the essence of which is to add the chemical reagent of the same name to the process fluid with further formation of a reinforcing mesh in the last one. The purpose of the article is to study the features of the physico-chemical properties of the FiberFrac solution using the analysis of geological and field data, to evaluate the technical and economic efficiency of the application of this measure based on the correlation analysis of statistical data and the calculation of economic efficiency using the discount method, to substantiate the advantages of FiberFrac over the standard operation hydraulic fracturing.

Summary The Novoportovskoye field is characterised by a mainly complex geological structure and the presence of remaining reserves. The situation is further aggravated by significant oil reserves occurring right under massive gas caps. To make HC recovery profitable in such geological settings, new technologies are required. This paper provides an insight into the case of creating a multilateral well based on a new TAML-1 level completion solution utilising the properties of the impermeable top of one bed and the dynamic quantum PLT to measure production from each formation separately in accordance with existing regulations.