Seismic sedimentology in the study of reservoir: taking Feiyantan area of Shengli Oilfield as an example

The purpose of this paper is using sections and frequency technology to accurately describe the thin sandstone reservoir of the fluvial facies, Feiyantan Oilfield. The fluvial reservoir of the Feiyantan Oilfiled has such characteristics, which are shallow buried depth, loose cementation, layered development. Previous research shows that geophysical techniques and methods for the study effect of reservoir is obvious, but the reservoir description accuracy can not meet the need of exploration and development. The research of constrained sparse pulse inversion, get the relationship between the seismic wave impedance attributes and reservoir thickness. Through seismic attributes and using frequency division processing, the lateral recognition of fluvial facies reservoir was achieved. Research Studies suggest that the Neogene upper Guantao Formation in the Feiyantan Oilfiled is a typical meandering river deposition. Then, the 4 and 5 layer (Ng14+5) channel is NW-SE distribution, the sandstone thickness center is located in the northwest of the study area, the main river sandstone thickness is 11 m, crevasse splay thickness ranges from 5 to 8 m; the 7 layer (Ng17) channel is SW-NE distribution, and the sandstone thickness center located in the main river location with thickness of up to 12 m.EI中文核心期刊要目总览(PKU)中国科技核心期刊(ISTIC)中国科学引文数据库(CSCD)017-212