塔里木盆地BT5井区奥陶系鹰山组储层特征与预测

Reservoir characteristic and prediction of Ordovician Yingshan formation in BT5 well area, Tarim Basin

巴探5井在巴探5井区奥陶系鹰山组已获得工业气流。针对该研究区储层非均质各向异性强、地震响应特征多样等特征,有利目标优选难度增大。基于该研究区目的层奥陶系鹰山组地质、钻井、测井等研究,结合前期区域性研究成果,通过目的层地震多属性综合分析、古地貌分析、波阻抗反演、频率衰减梯度、模型正演等储层预测技术序列,优选出Ⅰ、Ⅱ类储层,为优化勘探目标实现油气勘探突破奠定基础。

Well BT5 has achieved industrial gas flow in Ordovician Yingshan formation of BT5 well area. Due to strong reservoir heterogeneity anisotropic and varied seismic response characteristics, the difficulties of targets optimization are increased. Based on the research of geology, well drilling and well logging of Ordovician Yingshan formation, combined with previous regional re-search results, through reservoir prediction techniques, such as seismic multi-attribute comprehensive analysis, palaeogeomorphol-ogy analysis, wave impedance inversion, frequency attenuation gradient and model forward, ClassⅠand ClassⅡreservoirs are opti-mized, thereby providing basis for exploration targets optimization and oil and gas breakthrough.