New intensification technology at Naftogaz's fields increased production by 20%

Naftogaz introduces a new recovery enhancement technology of capillary systems at depleted fields. Initially, the Company's specialists applied it in the first 10 wells and then introduced the technology in 43 wells. By the end of 2021, they plan to cover 45 more. The effect of its application is a 20% increase in gas production in each well.

The new technology is used in the wells drilled in the fields with low reservoir pressure, the operation of which is complicated by the liquid build-up. Capillary systems allow stabilising the operation of the well and reducing purging losses. As a result, the larger gas volumes with lower production losses are recovered.

Oleg Tolmachev, Deputy Director for Production of the Naftogaz Exploration and Production Division, noted that the company is constantly looking for solutions that can intensify production at a minimal cost. These include the new approaches to drilling production wells, improved pressure control methods, and artificial lift, which is already successfully scaled at the Company's wells.

Therefore, the introduction of capillary systems is another successful solution for the Company, which allows solving the problem of well flooding without shutting the wells down. This means that there is no gas volume loss.

Wells that are best suited for the use of capillary systems were selected using WellFlo modelling software (from Weatherford). Further monitoring of well performance is performed in real-time using the CygNet and ForeSite digital platforms.

The introduction of capillary systems was carried out in well #60 of the Yuliyivske field, which increased the daily flow rate by 26%. And in well #83 of Skhidno-Poltavske field, the gas flow rate has almost doubled.

12:45 / 16 April 2021

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