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文79断块区沙二下亚段沉积微相及储层非均质性研究
发表时间：2015-06-30 浏览量：1718 下载量：463
| 全部作者： | 范忠礼，张金亮，张广雪，刘龙龙 |
| 作者单位： | 山东科技大学地球科学与工程学院；北京师范大学资源学院 |
| 摘 要： | 基于研究区地质背景，结合测、录井数据及地震资料分析，通过详细的岩心观察分析研究区储层沉积特征，识别相标志，明确沙二下亚段为分支河沉积体系，划分出河道充填沉积、近漫溢、远漫溢及河漫湖泊等微相类型，其中河道充填沉积与近漫溢微相是本区储层的主体相带。利用岩心常规物性测试、薄片鉴定等技术，结合测井参数解释对储层非均质性进行研究，结果表明：储层层内非均质性中等-严重，层间非均质性弱，平面非均质性强。建立储层的三维地质模型及物性模型来刻画研究区沉积砂体及储层的平面展布特征，发现平面非均质性受沉积相带及砂体展布形态控制。 |
| 关 键 词： | 地质学；文79断块区；分支河；沉积微相；储层非均质性 |
| Title： | Sedimentary microfacies and reservoir heterogeneity of the Shajie Formation in fault-block wen 79 |
| Author： | FAN Zhongli，ZHANG Jinliang，ZHANG Guangxue，LIU Longlong |
| Organization： | College of Earth Sciences and Engineering, Shandong University of Science and Technology; College of Resources Science & Technology, Beijing Normal University |
| Abstract： | Based on geological background and data of drilling and logging well and seismic, sedimentary characteristics and facies marker of the study area has been studied through detailed core observation. It is recognized that distributive fluvial system is developed during the lower of the second member of Shajie Formation, which includes microfacies of channel full sediment, near overtopping sediment, farther overtopping, sediment and alluvial lake, where distributary channel and mouth bar provide more reservoir spaces. Several research methods such as core property tests, thin section analysis and logging data interpretation have been used to study the reservoir heterogeneity. It comes to the conclusion that inner layer heterogeneity is medium to strong and plane heterogeneity is strong, while interlayer heterogeneity is weak. The view that plane heterogeneity is controlled by planar distribution of sand bodies and facies is confirmed by building three-dimensional geology model and physical property models to observe plane distribution feature on sedimentary sand bodies and reservoirs. |
| Key words： | geology; fault-block wen 79; distributive fluvial system; sedimentary micro-facies; reservoir heterogeneity |
| 发表期数： | 2015年6月第12期 |
| 引用格式： | 范忠礼，张金亮，张广雪，等. 文79断块区沙二下亚段沉积微相及储层非均质性研究[J]. 中国科技论文在线精品论文，2015，8（12）：1226-1231. |
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