Typical composition is (approximate percentages) 80% methane, 7% Ethane, 6% Propane, 2.5% Butane, 1.5% Isobutane, and 3% Pentane. Used in UB Drilling where it is available from local pipelines or other sources at reasonable cost. Has advantage of eliminating downhole corrosion and combustion problems, but surface handling presents safety issues during connections and tripping.
Natural Gas
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