Sound Oil, the upstream oil and gas company with assets in Italy and Indonesia, provides the following update on its Jatayu-1 well operations on the Citarum PSC in Java, Indonesia.
The well has been drilled in 6" hole to a depth of 6175 feet TVD (true vertical depth). The well encountered gas shows throughout this interval, utilising high mud weights up to 13.5 ppg (pound per gallon) due to the presence of over-pressured formations. Lost circulation was encountered while drilling at 6173 feet TVD, resulting in the decision to stop drilling and log the well.
The well site drill cuttings description indicated the lithology of the formation being drilled when losses occurred to be sandstone. Very high mud gas readings were observed over this unit.