海相油气地质Issue(1)：35-40,6.DOI:10.3969/j.issn.1672-9854.2016.01.006
下刚果盆地白垩系碳酸盐岩储层沉积模式与储层预测
Sedimentary Model and Prediction of Cretaceous Carbonate Reservoirs in Lower Congo Basin
摘要
Abstract
Lower Cretaceous Lower Sendji carbonate sediments are widely distributed in Lower Congo Basin. The Lower Sendji submarine topography that is affected on the underlying salt dome is characteristic of multi-leveled slope breaks, which increased the difficulty of reservoir prediction in the study area. Applying sequence stratigraphy theory and the mixed sedimentary model, the type and genesis of the Lower Sendji reservoirs developing in adjacent M Oil Field are analyzed, and it is deduced that just the salt movement and carbonate selective growth brought about the two-level paleo-geomorphy. Based on the unique sea level response to the paleo-geomorphy, two different sedimentary models of both low-stand and high-stand system tracts are built up. By the sequence frame analysis technology in the OpendTect software, the Lower Sendji sedimentary cycle rhythms are automatically tracked in this study area. It is predicted that the carbonate reservoirs should develop well in the low-stand system tract and the transgressive system tract in study area and resultantly the drilled data of Well X confirmed as same as the prediction.关键词
下刚果盆地/下白垩统/碳酸盐岩储层/沉积模式/储层预测Key words
Lower Cretaceous/Carbonate reservoir/Sedimentary model/Reservoir prediction/Lower Congo Basin分类
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徐微,吕明..下刚果盆地白垩系碳酸盐岩储层沉积模式与储层预测[J].海相油气地质,2016,(1):35-40,6.基金项目
本文受国家“十一五”重大专项“西非被动大陆边缘盆地海底扇等勘探目标评价与优选”(项目编号2008ZX05030-003)的资助 （项目编号2008ZX05030-003）
