轮南油田2井区三叠系储集层精细描述

Fine Characterization of Triassic Reservoir in Wellblock No.2 in Lunnan Oilfield

充分利用测井资料和动态生产数据,结合岩心观察,对三叠系储集层进行了详细研究,建立了储集层参数的地质模型,并对砂体的连通情况作了地质成因上的解释。研究发现,轮南2井区的隔夹层分为泥质隔夹层、钙质胶结细粒岩性夹层及细粒岩性紧邻钙质胶结层夹层。在储集层精细描述基础上,完成了轮南油田2井区Ⅰ油组细分层系开发调整方案,方案实施效果良好。

Based on well logs and performance data, integrated with core observation, deposition and diagenesis analysis, this paper builds up the geological model for Triassic reservoir and presents an interpretation of the sand connections in geologic origin. It is pointed out that the intercalated bed in Wellblock No.2 of Lunnan oilfield can be divided into calcareous one, fine serf calcite cementing one and fine adjacent calcite cementing one. On the basis of the fine characterization of reservoir, the subdivided sequence development adjustment project of oil measure-Ⅰ in this well block is proposed, and good results for application are obtained.