Puguang gas field is a superlarge marine carbonate gas field in China featuring in deep burial

large thickness

strong heterogeneity

high H

2

S and CO

2

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.