A Critical Analysis of the Experience of Using Intelligent Inflow Indicators for the Continuous Monitoring of Horizontal Wells at the Fields in Russia: Including Prirazlomnoye and Yu. Korchagin

Offshore field development is a complex task, an effective solution of which is impossible without conducting a wide range of research. While developing deposits with long horizontal wells, one of the important tasks is to continuously monitor each of the wellbore intervals to select optimal operating conditions and prevent early breakthroughs of water and gas. The paper presents a critical analysis of the experience of using intelligent inflow indicators for the continuous monitoring of horizontal wells in the fields in Russia. This experience allowed not only to solve local operational problems, but also to update the hydrodynamic models. Knowing the intervals of the maximum and minimum inflow, one can determine the zonal productivity and link it with the geology of the reservoir. The following process is used: the permeability of the various intervals is restored, taking into account the well operating conditions and formation pressure . Then, the integral permeability obtained by well test is compared with results from tracers studies. The last stage is the linkage of the obtained per interval permeability with the petrophysical and facies model. This approach is necessary to obtain a single picture of the geological structure of the reservoir, accurate prediction of the operation of the exploited wells.