Engines

The shift from diesel to LNG (and sometimes CNG or field gas) as a fuel for drilling rigs and hydrofracturing pump engines is underway, and there is interest in having ships, locomotives and long-haul trucks run on natural gas from LNG too. But before investing in new or converted engines that can run on natural gas or on a diesel-natural gas blend, diesel and shipping fuel users need answers to three questions: What will it cost? How much will we save? And—this is important, too--is the LNG infrastructure sufficiently robust to support the switch?Today we explore the economic ins and outs of converting from diesel to gas, and describe the current state of domestic LNG supply infrastructure.