Lithofacies paleogeography of the Shanxi Formation and Member 8 of Xiashihezi Formation of Permian in Suligemiao Oil and Gas-bearing Area, North Ordos Basin
Shen Yulin Guo Yinghai Li Zhuangfu
School of Resources and Earth Science, China University of Mining and Technology, Xuzhou 221008, Jiangsu
Based on the analysis of drilling data and core, the sedimentary facies of the Shanxi formation to Member 8 of Xiashihezi formation of Permian in Suligemiao oil and gas-bearing area, north Ordos basin, are divided into braided river, meandering river, delta and lake. By the theory of sequence stratigraphy, the Shanxi formation and Member 8 of Xiashihezi formation are divided into 5 sequences, and the sequence stratigraphic framework is set up. The lithofacies paleogeography map is drawn according to system tract. The feature and evolution of the lithofacies paleogeography are discussed in the sequence stratigraphic framework. During the sedimentary period of Shanxi formation, the paleogeography situation was meandering river-delta deposit, which has sedimentary differentiation from north to south. During the sedimentary period of Member 8 of the Xiashihezi formation, the alluvial system removed into the south of study area widely and formed river-delta deposit, in which the braided river is dominant. The channel sand body is high quality reservoir in Suligemiao oil and gas-bearing area, and its development is relative to lowstand system tract. By the palaeogeography mapping in the unit of system tract, the distribution and transferred direction of sedimentary microfacies are shown distinctly. It is an effective method to prospect the high quality reservoir.
About author: Shen Yulin,born in 1981,was graduated from China University of Mining and Technology. Now he is a master of School of Resources and Earth Science, China University of Mining and Technology, and is engaged in sedimentary.
Cite this article:
. Lithofacies paleogeography of the Shanxi Formation and Member 8 of Xiashihezi Formation of Permian in Suligemiao Oil and Gas-bearing Area, North Ordos Basin[J]. JOURNAL OF PALAEOGEOGRAPHY, 2006, 8(1): 53-62.
. Lithofacies paleogeography of the Shanxi Formation and Member 8 of Xiashihezi Formation of Permian in Suligemiao Oil and Gas-bearing Area, North Ordos Basin[J]. JOPC, 2006, 8(1): 53-62.