After multiple field tests of the 172-mm SIB-R tool combined with reference EM wave propagation resistivity tools, the first commercial job was performed at the Van-Yeganskoye oilfield in West Siberia.
An interval over 2,000 meters was drilled and more than 175 circulating hours were accumulated during the run. No incident was registered during the drilling. Phase Shift and Attenuation resistivity measurements acquired while drilling were timely provided to the customer to make critical geosteering decisions in real-time and perform formation evaluation using tool memory data.