João Henrique Rittershausen, Chief Production Development Officer, Petrobras Petrobras' João Henrique Rittershausen: Innovations like True One Trip, all-electric completions help to support strict goals around cost, emissions By Linda Hsieh, Editor & Publisher João Henrique Rittershausen is Chief Production Development Officer at Petrobras. What do you see as the biggest challenges for the drilling industry right now? Today, the biggest challenge is to complete our drilling campaigns on schedule and within budget. We have already seen incremental increases in the dayrates for rigs, and we also see problems in the supply chain due to the low level of operations that the industry had seen in the past few years. While Petrobras has not seen any impacts on the timelines of our projects so far, we do see challenges with the returns of rigs that were in cold stack.