Abstract:

The characteristics of the reformed basins in South China determined the complexity and variety of the basins' hydrocarbon pool forming. According to the pool forming basis,the key and end result,it is suggested that:1.the localization of present hydrocarbon pools is determined by late stage reformation, the reservoir spaces controlled by redistributed hydrocarbon source but not proto type basins; 2.the principal pool forming models shoul be early stage accumulation late stage pool forming and late stage accumulation late stage pool forming two kinds; 3.the property of hydrocarbon high evolution grade and late pool forming has determined that gas exploration should be taken as the main target in South China; 4.the quality of late stage reformed and entire sealing system is the key of pool forming and preservation; 5.the exploration of natural gas in South China must insist on the main target horizons and give consideration to other possible gas bearing beds;must insist on the exploration thinking of "secondary hydrocarbon generation, multi bed reservoiring and entire sealing" due to its property of multiple reservoir beds and multiple reservoir types.

Key words: Oil and gas, exploration thiking, dynamic pool forming, sealing system, South China