Mud gas isotope logging interpretative process utilizing mixing lines in oil and gas drilling operations

摘要: The present invention is a method of interpreting sampled mud gas compositional and isotopic data from target area in drilling operation. plotted on chart. chart preferably illustrates methane together with composition, such as δ 13 C 1 . From this chart, mixing lines are determined. determined by finding points the which approximate straight line or other trend. then analyzed to determine reservoir signature, hydrocarbon communication any interference within area.