The Research And Application Of Hydrocarbon Yield Chart Board Of Source Rocks For Qingshankou Formation In Songliao Basin

Hydrocarbon source rocks production rate is a very important parameter in basin simulation calculation of oil and gas resources.Establishing hydrocarbon production rate chart of Qingshankou formation in Songliao Basin has an important significance for basin simulation,oil and gas resources and the hydrocarbon expulsion efficiency calculation.This paper mainly through Rock-Eval experiment,the PY–GC,autoclave experiment to obtain oil and gas conversion relations with temperature.By using the hydrocarbon generation kinetics mode to calibrate kerogen into oil,kerogen into gas and oil cracking gas kinetic parameters of the study area target horizon source rocks.According to source rock geochemical data of the research area to determine hydrocarbon generation threshold.Using the measured R_O of target horizon hydrocarbon source rocks to correct burial history,thermal history in the study area.At last,kinetic parameters combined with corrected burial history,thermal history to extrapolate geological.Establishing hydrocarbon production rate chart,and appling to calculate the amount of hydrocarbon resources and expulsion efficiency of qingshankou formation in Songliao Basin.The results show that in the same type of kerogen,the distribution of activation energies of many pre-exponential factor disperser than only pre-exponential factor,and the hydrocarbon generation window of hydrocarbon production rate chart are wider than only pre-exponential factor;in the different types of kerogen,the hydrocarbon chart window of type?kerogen are narrower than type?kerogen;in the hydrocarbon production rate chart the period of hydrocarbon generation is mainly in the R_O 0.5%-1.2%range,oil cracking gas main after 0.9%,hydrocarbon generation sequence for oil kerogen activation energy,gas kerogen activation energy and oil crack gas activation energy;the qingshankou formation in northern songliao basin,the hydrocarbon generation threshold depth is around1550 m,R_O is around 0.65%,the hydrocarbon expulsion threshold depth is about 2000 m,R_O is about 1.00%,two sets of hydrocarbon source rock is the total of 53.619 billion tons oil production,among them,the K₂qn¹ formation have 24.978 billion tons of oil source,the K₂qn²³ formation have 28.641 billion tons of oil source.