厄瓜多尔Oriente盆地南部潮坪相识别  

Sedimentary Microfacies in the South Block of Oriente Basin , Ecuador

作　　者：衣英杰[1] 姜在兴[1] 赵伯宇[1] 

机构地区：[1]中国地质大学<北京>能源学院,中国北京100083

出　　处：《科技信息》2010年第13期5-6,共2页Science & Technology Information

基　　金：中国石油天然气集团公司科技攻关项目(06b80102)

摘　　要：A、B油田位于厄瓜多尔Orient盆地南部14、17区块,整个盆地的构造演化及沉积演化已基本清楚,但对于多套储层砂体,尤其是主力层成因单元级别的研究不多,研究深度也远远不够。本文通过岩心及录井资料识别出5个微相,并详细刻画了其岩性、沉积构造特征;通过岩电分析,归纳出潮坪各微相曲线特征;通过3次不同方法优选有效地震属性。从物源方向、沉积韵律、岩石类型、沉积构造、古水流等多个方面总结出潮坪相与潮汐三角洲及河流相的不同。The oil field of A and B are located in the Oriente Basin of Ecuador. The structural and sedimentary evolution had been clarified. However, the studies on genesis unit level of multiple layers of reservoir were not enough, especially on dominant layers. According to data of drilling core and log, five mierofacies were identified, and their lithologic characteristics and sedimentary structure features were described carefully. Combination with lithologic character and electrical property, we summed up curve features of microfacies. Seismic properties were effectively optimised by three methods. The differences between tidal flat, tidal delta and fluvial facies were recognized.

关 键 词：潮坪相 泥坪 混合坪 砂坪 潮道 

分 类 号：P588.2[天文地球—岩石学]