In the period March,18 -21 the 21st Oil and Gas Exhibition and Conference – the 21-st SPE Middle East Oil & Gas Show and Conference (MEOS 2019) was held in Manama (Bahrain). The event was attended by over 190 leading production and service companies from 25 countries. Alexei Anopov, Strategic Development Director of GeoSplit LLC, presented a report “Production Logging using Quantum Dots Tracers” at the technical session of the conference “Formation Evaluation”