海上油气田智能化随钻辅助决策技术研究

Research on Intelligent MWD-assisted Decision-making Technology for Offshore Oil and Gas Fields

信息化、智能化逐步成为生产力和油田核心竞争力之一。智能化随钻辅助决策系统基于对随钻技术的研究,结合随钻案例库和知识库,将现代计算机技术和专家经验融为一体,着陆阶段标志层和目的层自动识别、水平段井轨迹与地层界面相对关系自动评价实现智能化随钻技术支持,从而减少人员重复性工作,避免人为判断失误。同时,对于水平井随钻中遇到的地质油藏、工程等不确定性,非结构性、非数值化的“黑箱”难题,基于智能案例推理实现辅助决策。

Informationization and intelligence gradually become one of the productivity and core competitiveness of the oilfield.Based on the research on Measurement-while-driling(MWD)technology,the intelligent MWD assisted decision-making technology combines the MWD case base and knowledge base.With integrating modern computer technology and expert experience,the intelligent MWD assisted decision-making technology can automatically identify the marker layer and target layer in the landing stage.What’s more,by evaluating the relative relationship between the horizontal well trajectory and the stratigraphic interface,this technology can reduce the repetitive work of personnel and avoid human judgment errors.At the same time,as to the“black box”problems of uncertainty,non-structural and non-numerical,such as geological reservoir and engineering,encountered in the horizontal well MWD,we can use intelligent case-based reasoning to achieve assisted decision-making.