Method using multi-attributes to integrative identification of delta parfacies: case of Shuangfeng delta in Lingnan sag
Sun Shu-yan1,2, Xie Gang2, Jiang Lei2, Zhu Jian-bing2
1. Guangzhou Geochemical Institute of Chinese Academy of Sciences, Guangzhou City, Guangdong Province, 510640, China;
2. Geophysical Research Institute of SINOPEC Shengli Oilfield Branch, Dongying City, Shandong Province, 257022, China
Abstract：It is possible to form reservoir for sandy body with different parfacies of delta, but the reservoir-forming control factor is difference because of different sedimentary facies zones, so it is very important to accurately identify sedimentary parfacies of delta in oil/gas exploration. The paper explored creating seismic mode identifying different facies belts by summarizing velocity and lithologic and electric feature of sand and mud stone in different facies belt of the work zone in a condition that the application effect of conventional seismic attributes is not ideal, carrying out optimization of seismic attributes in a reasonable time-window range, and optimizing the attributes of frequency-division, waveform and arc length to identify delta parfacies, which showed the method having evident effect in practical application.
