Log spectrum Analysis and Its Geological Significance on Delta front Formation of Shengtuo Oilfield
详细信息
- 责任者：Yan Ke (Postdoctoral Workstation of Shengli Oilfield ; SINOPEC ; Dongying 257002 ; China) ; Bi Yiquan
- 刊名：Fault-Block Oil and Gas Fields
- 出版年：2012
- 卷期：19(4)
- 关键词：地球物理测井 ; geophysical logging ; 基准面旋回 ; base-level cycle ; 东营凹陷 ; Dongying Sag
- 页码：p.541-544
- 图表：2 illus., 16 refs.
- 分类号：1600,1003
- issnNo：ISSN1005-8907
- isbnNo：CN41-1219/TE
摘要
Taking the delta front formation of Es28 sands of Shengtuo oilfield in Dongying Depression as an example, the maximum entropy spectrum analysis and predication error analysis were utilized to describe the logging frequency spectrum features and reveal the geological significance. The study shows that the cycle sequence in the delta front formation is controlled by the earth orbit cycle, and the spectrum feature presents as the superimposition of Milankovitch cycle and non-Milankovitch cycle. Based on the spectrum trend curve, the delta front reservoir of Es28 sands in Shengtuo Oilfield can be divided into two integral middle-term base level cycle, which revealed the genesis and sedimentary process of formation reasonably.