Mathematical model and influence factor analysis for productivity prediction of fractured-vuggy carbonate reservoir when drilling into cavern reservoir

The seam hole type carbonate didn't touch drill in the cave reservoir oil and gas resources is rich, but due to large difference of unused capacity, capacity main control factors evaluation model not clear, so difficult reasonable effective development, order improve development effect, find influencing master,This article through carry out test, productivity prediction set up analyze affecting studies have shown that wellbore storage coefficient skin factor had a greater influence on vertical well productivity, this paper research content for reserves producing has certain guiding significance.