简答题 翻译：The producing gas-oil ratio R is the ratio of the volumetric gas production rate to the volumetric oil production rate, both at surface conditions.

问答题翻译：Further out from the borehole, the displacement of the formation fluids by the mud filtrates is less and less complete, resulting in a transition from mud filtrate saturation to original formation water saturation. This zone is referred to as the transition or invaded zone.

问答题翻译：Measuring (gauging) and testing crude oil in the field is not a typical repetitive operation.

问答题翻译：Formation fluid or pore pressures are frequently classified into three categories, subnormal, normal and abnormal.

问答题翻译：Actually, the basic fundamental premises of log interpretation are few in number and simple in concept.

问答题翻译：Petroleum geology is the application of geology (the study of rocks) to the exploration for and production of oil and gas.