Digitization and intelligentization are new direction of drilling engineering development, but it is still in its primary stage. Aiming at the abnormal pressure layer in the lower well section of offshore well 19-6 and the narrow safety window for drilling fluid prediction, by using Drillworks software, DC index method and subsection logging data correction method, the formation pressure monitoring while drilling is carried out; by the combination of dynamic tracking software Well-Ahead software and Landmark software hydraulic module calibration, the dynamic hydraulic monitoring while drilling (ECD while drilling, tripping swabbing and surge pressure analysis) are carried out to ensure the drilling fluid circulation equivalent between the bottom hole and the casing shoe in 3 pressures safety windows. Through the establishment of this remote data support model, the digital process of drilling engineering is further promoted and the drilling safety is effectively guaranteed.