古流向的研究方法探讨-断块油气田.PDFVIP

断 块 油 气 田 15 卷 1 期 FAULT-BLOCK OIL GAS FIELD 2008 年 1 月 文章编号院1005-8907 渊2008 冤01-037-04 古流向的研究方法探讨 1 1 1 1 陈 妍 陈世悦 张鹏飞 赵 伟 渊中国石油大学地球资源与信息学院 山东东营 257061 冤 摘 要 古流向的信息会在沉积地层中以特定的形式保留下来袁 根据这些特定的标志可以判断恢复古水流的方向遥 研究古水流的方法归纳起来包括确定某一点水流方向的微观研究方法和确定大范围水流方向的宏观研究方法遥 其中微观 研究方法主要包括各种沉积构造尧砾石及长形生物化石的定向排列尧地层倾角测井尧磁化率各向异性等曰宏观研究方法包 括重矿物分析尧岩石成分分析尧砂砾岩百分含量变化尧沉积相及沉积体系展布尧地层厚度变化尧地震地层学研究及古生物研 究等遥 每一种方法有其特有的适应性和缺点袁在实际应用中应根据具体情况选择合适的方法进行古流向的研究遥 关键词 古流向 沉积构造 微观标志 宏观标志 研究方法 + 中图分类号院TE 121.1 4 文献标识码院A Discussion on research methods of paleocurrent direction Chen Yan(College of Geo-Resources and Information, China University of Petroleum, Dongying 257061, China) , Chen Shiyue, Zhang Pengfei, et al. The information of paleocurrent direction can be reserved in a particular way in sedimentary formation. According to these specific symbols, the paleocurrent direction can be judged and be restored. The methods of studying paleocurrent can be summarized as follows: the microscopic method, which can determine a certain current direction, and the macroscopic method, which can determine the cuttent direction in a wide range. The microscopic method includes the various sedimentary structures, the lineation of gravel and long fossil organism, dip log, magnetic anisotropy and so on. The macroscopic method includes the heavy mineral analysis, rock composition analysis, changes of glutenite percentage content, sedimentary facies and distribution of depositional systems, changes of formation