RE:RE:hole 1
IIrc correctly the deadwood is below the hydrocarbon zones...so casing the well would be a regulatory requirement and would have been budgeted into AFE. I don't know whether they would have drilled monobore to target after running surface casing, or ran an intermediate casing string first. Regardless they may have been able to get some idea of He content via gas cromat analysis while drilling , but i suspect such a trace gas cannot be delineated accurately without proper production work, production string packers and flow testing.