Principles of Oil and Gas Formation Fluid Dynamic System Analysis and Their Applications

Key words: 
• fluid dynamic systems /
• oil and gas exploration /
• gravity-driven flow /
• compaction-driven flow /
• fluid compartment /
• deep basin gas

Abstract: Principles of oil and gas formation fluid dynamic system analysis are briefly described. Fluid dynamic systems are classi fied into four types, including gravity-driven flow, compaction-driven flow, fluid com-partment and no-flowones. Oil and gas pools formation and occurrence for each type are analyzed, along with case studies. It is emphasized that for different types of fluid dynamic systems, the mechanism of oil and gas pools'formation is different, and then, studies on these different types of fluid dynamic systems should have different focus. Finally, it is indicated that the studies on gravity-driven flow and fluid com-partment system types are respectively important for petroleum exploration in the marine basins of southern China and in the deep parts of the basins relatively maturely explored in China.