Abstract
ABSTRACT An assessment of potential profitability of an exploratory venture in a sour gas play should include the large effect gas composition can have on plant cost. Based on expected composition, processing plant costs can vary six-fold, ranging from simple sweetening and dehydration units to those including sulfur recovery and tail gas units. Examination of basin trends may provide reasonable guidelines on expected variation in gas composition, hence the expected variation in both cost and profit. Data from three formations illustrate gas compositional variation. If gas composition varies widely in a play, expected plant cost can be calculated by weighing plant cost with chance of compositional occurrence.
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