AUTHOR=Liu Zhen , Zhang Junhua , Sun Youzhuang , Yu Zhengjun , Ren Ruijun 

TITLE=A new Bayesian-based brittleness prediction method for the Pingdiquan formation in the Eastern Shiqiantan depression of the East Junggar Basin

JOURNAL=Frontiers in Earth Science

VOLUME=Volume 11 - 2023

YEAR=2023

URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2023.1163938

DOI=10.3389/feart.2023.1163938

ISSN=2296-6463

ABSTRACT=In this paper, a new method of Bayesian-based brittleness prediction is proposed. The method forms the joint Gaussian distribution function of shale facies and non-shale facies by synthesizing the petrophysical data of multiple well cores in the region. And the Bayesian facies classification is done for the seismic data. Finally, the new brittleness is obtained by combining the non-shale facies data with the Rickman brittleness data. The practical data show that the new brittleness can increase the difference in brittleness of different geological bodies compared with Rickman brittleness to highlight the target geological bodies.