三维定量荧光录井在西湖凹陷油气性质判别中的应用

Application of 3D Quantitative Fluorescence Logging Technology in Xihu Sag

鲁法伟

LU Fawei

中海石油(中国)有限公司上海分公司, 上海 200335

Shanghai Branch of CNOOC Limited, Shanghai 200335, China

西湖凹陷主力勘探目的层多为凝析气层，常规荧光录井难以识别发现，且钻井过程中为保障作业安全，钻井液中常添加部分荧光材料，对油气录井的判断带来很大的干扰。三维定量荧光技术以其高检测灵敏度在西湖凹陷凝析气层的发现与解释评价上发挥了独特的技术优势，经过多年实际应用逐步建立了凝析气层、油气同层、含水气层的三维定量荧光解释图版，为西湖凹陷油气勘探提供了有效的技术支持。

The main exploration horizons in Xihu Sag are usually condensate gas reservoirs, are hard to be identified by conventional fluorescence logging. In addition, the fluorescent material added in the drilling fluid for the safety of well drilling also complicates the judgment of mud logging information. Due to the high sensitivity in detection, the three-dimension quantitative fluorescence logging technology has shown its specific advantage in the identification and interpretation of condensate gas layers in Xihu Sag. The plots for the interpretation of condensate gas, oil and gas, water-bearing gas layers established in the application of three-dimension quantitative fluorescence logging in many years provide effective technical support for the exploration of oil and gas in Xihu Sag.

https://doi.org/10.3969/j.issn.1008-2336.2016.02.069