鄂尔多斯盆地富黄探区延长组烃源岩评价

Hydrocarbon Source Evaluation of Yanchang Group in Fu-Huang Exploration Area, Ordos Basin

利用有机岩石学和地球化学的方法,对鄂尔多斯盆地富黄探区延长组长4+5、长6、长7段烃源岩进行了评价,旨在明确研究区烃源岩的生烃潜力。研究结果表明:长7烃源岩相对于长4+5、长6段烃源岩具有机质丰度高、成熟度高的特征,有机质类型以Ⅰ-Ⅱ1型为主,为好烃源岩,也是探区三叠系油藏的主力烃源岩。

By using the method of organic petrology, and geochemistry, the hydrocarbon source rock of Chang4 ＋5、Chang6 and Chang7 in Fuhuang exploration area was studied, The purpose is to clear the potential of hydrocarbon source rocks in the study area. The results show that the Chang7 hydrocarbon source rocks with high abundance of organic matter, organic matter type is Ⅰ-Ⅱ1 type, high organic matter maturity, for good hydrocarbon source rock, also it is the main hydrocarbon source rocks of Triassic reservoir in Fu-Huang exploration area.