Drilling into formation started again at 09:30 yesterday at 4537 m while pumping 40 l/s through the string and 13 L/s on kill-line. From 12 to 13:45 some reaming was necessary due to torque spikes. Drilling continued afterwards with a constant rate of penetration and at midnight the well depth was 4556 m. During drilling polymer was added constantly.Drilling into hard formation continued today and currently the well is 4566 m deep.