涪陵页岩气勘探录井系列优化探讨

On Optimization of Mud Logging Series in Shale Gas Exploration in Fuling Area

为进一步发挥页岩气录井在识别岩性、建立地层剖面、精确划分水平段地层的作用,提高检测地层气体含量、评价页岩气层、随钻地层压力监测精度,更好地开展优化钻井辅助服务,通过分析涪陵工区页岩气录井技术难点,根据涪陵工区页岩气藏和地质特点明确涪陵工区页岩气勘探录井技术优化原则,并确定涪陵工区勘探井的录井系列,对涪陵工区页岩气储层评价等地质分析起到了积极作用。

In order to give full play to the role of shale gas mud logging in identifying lithologies,constructing stratigraphic profile and accurately dividing horizontal strata,the optimized supporting of drilling is made by improving the accuracy of formation gas content measurements,evaluating shale gas layers and monitoring formation pressures while drilling.The paper analyzes the technical difficulties of shale gas mud logging in Fuling area-and defines the principle of mud logging technology in shale gas exploration in terms of shale gas reservoirs and geological characteristics in the area.The mud logging series have been determined,which has played an active role in the geological analysis of shale gas reservoirs in Fuling area.