邱尔康, 杨风丽, 张若愚, 周晓峰. 南黄海盆地二叠系地震-沉积相分析及烃源岩分布预测[J]. 海洋地质与第四纪地质, 2018, 38(3): 96-106. DOI: 10.16562/j.cnki.0256-1492.2018.03.009
引用本文: 邱尔康, 杨风丽, 张若愚, 周晓峰. 南黄海盆地二叠系地震-沉积相分析及烃源岩分布预测[J]. 海洋地质与第四纪地质, 2018, 38(3): 96-106. DOI: 10.16562/j.cnki.0256-1492.2018.03.009
QIU Erkang, YANG Fengli, ZHANG Ruoyu, ZHOU Xiaofeng. Seismic and sedimentary facies analysis and prediction of favorable Permian source rocks in the South Yellow Sea basin[J]. Marine Geology & Quaternary Geology, 2018, 38(3): 96-106. DOI: 10.16562/j.cnki.0256-1492.2018.03.009
Citation: QIU Erkang, YANG Fengli, ZHANG Ruoyu, ZHOU Xiaofeng. Seismic and sedimentary facies analysis and prediction of favorable Permian source rocks in the South Yellow Sea basin[J]. Marine Geology & Quaternary Geology, 2018, 38(3): 96-106. DOI: 10.16562/j.cnki.0256-1492.2018.03.009

南黄海盆地二叠系地震-沉积相分析及烃源岩分布预测

Seismic and sedimentary facies analysis and prediction of favorable Permian source rocks in the South Yellow Sea basin

  • 摘要: 二叠系烃源岩是南黄海盆地多套优质烃源岩之一,多年来,由于地震测线少和品质差,导致对其分布一直认识不清。基于南黄海盆地近年来新采集处理的大量二维地震测线,结合老地震测线和5口钻遇二叠系的钻测井资料,通过单井相分析、地震-沉积相分析,开展了对南黄海下二叠统、上二叠统的沉积相及有利烃源岩分布预测研究。分析表明:下二叠统栖霞组沉积时期,青岛坳陷及崂山隆起西部以台地相为主、中东部以盆地相发育为主;上二叠统龙潭组沉积时期,青岛坳陷南部和勿南沙隆起以三角洲平原相、崂山隆起和青岛坳陷西部以三角洲前缘沉积相、青岛坳陷东北部及崂山隆起东部以滨浅海沉积相发育为主。结合有利烃源岩沉积相和残留地层厚度分析,认为崂山隆起中部及青岛坳陷东北部是下二叠统烃源岩有利分布区,崂山隆起中东部及青岛坳陷东北部是上二叠统烃源岩有利分布区。

     

    Abstract: The Permian source rock is one of the high-quality hydrocarbon source rocks in the South Yellow Sea basin. However, the seismic data available is so poor in quality that the distribution pattern of Permian source rocks is not clear. Based on the recently acquired and processed seismic data, integrated with old seismic data and well log datafrom the basin, by means of single well facies and seismic-sedimentary facies analysis, we discerned the distribution pattern of sedimentary facies and favorable source rocks of early and late Permian. It is revealed that duringthe period of early Permian, the western part ofLaoshan uplift and the western part of Qingdao depressionare both dominated byplatformfacies, while the eastern part of Laoshan uplift and the eastern part of Qingdao depression dominated by basin facies. During late Permian, however, the western part of Laoshan uplift and the northwestern part of Qingdao depression are covered by deltaic front facies, and the southern part of Qingdao depression by delta plain facies, whereas the northeastern part of Qingdao depression and the eastern part of Laoshan uplift are occupied by littoral-shallow facies. Combining the favorable sedimentary facies together with the residual stratigraphic thickness, we suggest thatthe middle part of the Laoshan uplift and the northeastern part of the Qingdao depression bethe favorable source rocks distribution area of lower Permian; the mid-eastern part of the Laoshan uplift and the northeastern part of the Qingdao depression be favorable source rocks distribution area of upper Permian.

     

/

返回文章
返回