After the third round of resource assessment，great changes have taken place of natural gas in the south Songliao Basin.The original knowledge can’t meet the need of exploration.So we need reevaluate systematically the natural gas resources，which will guide the direction of exploration.Deep gas in the south Songliao Basin mainly includes clastic rock gas reservoir，volcanic rock gas reservoir and tight gas reservoir.According to the different gas reservoir types，8 faulted depressions were divided to 20 assessment units.Three calibrated areas including the Yingtai fault depression clastic，volcanic rock and tight gas were established.We use analogy analysis method mainly，genesis method secondly.We add Monte Carlo method for the unconventional resources，and confirm the total natural gas resources in the south Songliao Basin to be 20 365×108m3.Among them the resources of clastic gas are 1 996×108m3，and of the volcanic gas are 5 431×108m3.Tight gas resources are 12 969×108m3.Through the analysis of various geological conditions for each depression such as main controlling factors，hydrocarbonand reservoir conditions，we ascertain that the remaining resources distribute in Changling，Dehui and so on.Tight gas reservoirs are the key exploration area in the next step.
Wang Ying, Deng Shou-wei, Fan Jing, Zou Xiao-pin, Yang Jing
. Natural gas geology，resource potential and favorable exploration direction in the south of Songliao Basin[J]. Natural Gas Geoscience, 2018
, 29(10)
: 1455
-1464
.
DOI: 10.11764/j.issn.1672-1926.2018.09.007
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