西安石油大学学报（自然科学版）2013，Vol.28Issue(1)：29-36,8.
准南八道湾组扇三角洲岩相特征及分流河道砂体对比的约束条件
Lithofacies characteristics of fan delta and constraint conditions for sandbody correlation of distributary channels of Badaowan Formation in the south margin of Junggar Basin
摘要
Abstract
Nine lithofacies and four typical lithofacies associations are found in the outcrops of Badaowan Formation in the south margin of Junggar Basin. According to the characteristics of the lithofacies associations, Badaowan Formation is confirmed as typical fan delta deposit. Distributary channels in fan delta plain are the major reservoir sandbodies. Based on fine interpretation of outcrop profiles, single sandbody distributes in isolation near the transition surface between base-level rising semi-cycle and base-level descending semi-cycle. With the continuously descending of base-level, sandbodies present multilateral-multilayer superposition. The width-to-thickness ratio of distributary channel in fan delta plain of Badaowan Formation is 15 ～ 22. According to the indoor single sandbody correlation results constrained by different data,the correlation results of thick sandbodies are relatively accurate even when constraining conditions are less. The correlation accuracy of thin sandbodies will increase with the increase of data provided to indoor researchers. Base-level cycle mainly controls the vertical superposition pattern of sandbodies, while quantitative geological knowledge database (width-to-thickness ratio) mainly controls the lateral extending distance of single sandbody.关键词
准噶尔盆地南缘/八道湾组/扇三角洲/砂体对比/定量地质知识库Key words
south margin of Junggar Basin/Badaowan Formation/fan delta/sandbody correlation/quantitative geological knowledge database分类
能源科技引用本文复制引用
陈彬滔,王天奇,于兴河,李顺利,杨丽莎,谭程鹏..准南八道湾组扇三角洲岩相特征及分流河道砂体对比的约束条件[J].西安石油大学学报（自然科学版）,2013,28(1):29-36,8.基金项目
国家自然科学基金项目(编号:41072084) （编号:41072084）
