【摘要】 本文应用甾烷、萜烷地球化学参数,研究了生油母质类型、有机质成熟度、油源对比及烃类相对运移等问题,并提出对二连盆地石油勘探的一些建议。更多还原

【Abstract】 Classification of kerogen,maturation of organic matters,source correlation, and migration of hydrocarbons are discussed in this paper based on geochemical parameters,ie.steranes and terpanes,and some suggestions for further petroleum exploration in Erlian Basin are presented also. The classification of kerogen is based on the ratio:ΣC₂₇steranes/ΣC₂₉ster- anes,with which degree of oil generation can be divided relatively. The threshold parameters of oil generation in the two depressions has been determined by using a lot of multiple molecular parameters of maturity and the parameters related to the biochemical markers of observed the crude oils. The correlative method of GC map and the method of mean squar difference has been used to interprete the oil source in both Ehebaolige and Saihantala depression of the basin. The relative hydrocarbons migration in two depressions is illustrated in the light of using the corresponding molecular parameters based on principle of geoch- romatography. Finally,this paper indicates that the sample of A₃-118 is more mature, with a better type of kerogen,and more promising prospects would be expected.更多还原