基于数值模拟的远程工程支持在海洋19-6井的实践

数字化和智能化是钻井工程发展的新方向，但目前仍处于初级阶段。针对海洋19-6井中下部井段存在异常压力层，预测钻井液安全窗口较窄的问题，通过Drillworks软件采用dc指数法和分段测井资料校正法开展了地层随钻压力监测、通过动态跟踪软件Well-Ahead软件结合Landmark软件水力模块校正开展了随钻动态水力（随钻ECD当量密度和起下钻抽汲和“激动”压力分析）监测，保证了井底和套管鞋钻井液循环当量在三压力安全窗口内。通过这种远程数据支持模式的建立，进一步推进了钻井工程数字化进程，有效保证钻井工程安全。

Research and Application of Decision Support Method for Drilling Engineering Based on Data Analysis

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.