Denudation Thickness Estimation of Sedimentary Formation in Ordos Basin by Acoustic Logging Information

Abstract

Abstract: By analyzing the principle of the method for estimating the denudation thickness according to interval transit time information and its applicable condition, it is recognized that the method can be used to estimate the denuded thickness after the Early Cretaceous in Ordos basin. The estimation result shows that the gradual denudation decreases from east to west: in eastern areas such as Shenmu, Yulin and Jiaxian whose strata had been denuded over 1 400 m; while in western areas such as Huanxian and Zhenyuan whose strata had been denuded about 400 m. It reflects that the late reconstruction of this basin is characterized by the strong in the eastern and boundary areas and the weak in the western and inner areas.

Key words: Ordos basin, interval transit time, mudstone compaction, strata denudation, Early Cretaceous

CLC Number:

P512.2

WENG Wang-fei, WANG Jian-qiang, ZHANG Rong-rong, CHEN Hong, GUI Xiao-jun. Denudation Thickness Estimation of Sedimentary Formation in Ordos Basin by Acoustic Logging Information[J]. Xinjiang Petroleum Geology, 2011, 32(2): 143-146.

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