Abstract:

Abstract: Puguang gas field is a superlarge marine carbonate gas field in China featuring in deep burial, large thickness, strong heterogeneity, high H₂S and CO₂ contents and edgeand bottomwater. Gas reservoir engineering theory and methodologies, numerical simulation and economic evaluation techniques are used to optimize the technical policies for its development, including layer division, welltype selection, reasonable well spacing,well pattern, reasonable productivity, reasonable gas production rate, technical and economic limits of single well, control and impediment of edgebottom water advancing, prevention of sulfur precipitation and so on. A set of technical methods are formulated for optimizing technical policies of carbonate sour gas reservoirs and are applied to Puguang gas field. The rational technical policies obtained provide a solid basis for development planning and adjustment and effective development of this gas field.

Key words:  , Key words： sour gas reservoir, edge/bottom water, technical policy for development, Puguang gasfield