Research on Character of Sandlayer in Heidimiao Oil Layer in Yingtai Area

Abstract:

Based on the division and correlation of sand groups in Heidimiao, synthesizing the information of 3D seism data, drilling data, logging data and core data, well ties profile, sandstone contrast diagram and oil reservoir profile are drawn in this article in a way of combining the data of logging and seism. Furthermore, spatial distribution rules of sandlayer in Heidimiao oillayer are expected to be analyzed in this article through the data of stratum thickness, sandstone thickness, the thickness ratio of sandstone to stratum, and porosity isogram. The rules are described as: the Heidimiao oil layer is thick in east and north but thin in the west and south as a whole. Little sandstone is found in H3 (Nen 2) but that is highly developed in H2 (Nen 3) and H1 (Nen 4) in which lenticular sandlayer can also be found. Sandstones in each oil group are developed with varying thickness, great depth difference and complex lateral connectivity. What’s more, sandstones in the research area manifest a decline in layers and thickness from east to west. The thinner and smaller-scale sandstones in the west have weak lateral connectivity but strong control of oil and water distribution, which results in the formation of concealed lithological reservoir uncontrolled by geological structure.

• Periodical: Advanced Materials Research (Volumes 734-737)
• Pages: 426-431
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.734-737.426
• Online since: August 2013
• Authors: Gui You Lv
• Keywords: Character of Sand Layer, Distribution Characteristic, Section Plane, Seismic Data

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