Sentences with phrase «emissions during the drilling process»
He said regulators have always thought that there are few emissions during the drilling process, but when drilling rigs drill through shale layers containing a lot of natural gas, a pressure pulse will send gas out of the well and into the atmosphere.
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Typically, during the drilling process, methane emissions are estimated to be between 0.04 and 0.3 gram of methane per second per well.
«This indicates that there are processes occurring — e.g. emissions from coal seams during the drilling process — that are not captured in the inventory development process,» he said.