塔中气田奥陶系碳酸盐岩岩溶储层预测研究

提要：塔里木盆地塔中地区奥陶系碳酸盐岩岩溶储层具有埋藏深、地震资料分辨率及信噪比不高、非均质性强等特点。为此，利用古地貌、古水流和古断裂等地质主控因素方法与多地震属性信息融合技术相结合的解决思路，对研究区奥陶系鹰山组碳酸盐岩岩溶缝洞型储层进行了分析和预测，刻画了不同类型岩溶储层的分布规律。该方法既降低地震信息的多解性、提高了储层预测的精度，又符合地质规律，研究成果为研究区的勘探生产奠定了坚实的基础。

The prediction of Ordovician carbonate karst reservoirs in the Tazhong gas field

Abstract: Ordovician carbonate karst reservoirs in Tazhong area of Tarim Basin are characterized mainly by deep burial, lower seismic data resolution and signal-to-noise ratio, and strong heterogeneity. To solve these problems, the authors employed the train of thought which combined the main geological controlling factors such as ancient landform, ancient water and ancient faults with seismic multi-attributes information fusion technology to analyze and predict the fractured-vuggy carbonate reservoirs of the Ordovician Yingshan Formation in the study area and describe the distribution of different types of karst reservoirs. With this method, the ambiguity is reduced and the precision of reservoir prediction is improved. The results provide a solid foundation for the exploration and production of the study area.