AUTHOR=Zhao Wanchun , Yang Zhipeng , Wang Tingting , Zhou Yan , Song Wei , Li Jingrun , Zhai Peihong TITLE=The different member equivalent circulating density prediction model and drilling parameter optimization under narrow density window JOURNAL=Frontiers in Earth Science VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2025.1558550 DOI=10.3389/feart.2025.1558550 ISSN=2296-6463