基准面旋回控制下储层评价

摘要：应用高分辨率层序地层学理论在研究区目的层中划分出41个短期基准面旋回、7个中期基准面旋回及2个长期基准面旋回（LSC1和LSC2）；然后对短期基准面旋回下储层进行综合评价，得到一类储层主要发育在LSC2上升半旋回的早、中期，二类储层主要发育在LSC1下降半旋回的晚期，即一、二类储层主要发育在可容纳空间较小的情况下；三类储层主要发育在LSC1下降半旋回的早至中期，四类储层主要发育在LSC1下降半旋回的早期和LSC2上升半旋回的晚期，即三、四类储层主要发育于高可容纳空间情况下。

Reservoir Evaluation Contolled by Base-level Cycle

Abstract: by using high resolution sequence stratigraphic theory, ranking sequence stratigraphy is classified in study area. 41 short-term base-level cycles,7 mid-term base-level cycles and 2 long-term base-level cycles(LSC1 and LSC2)are classified in the target of the research area.then reservoir heterogeneity is studied for ranking sequence stratigraphy. The calculation results are consistent with the characteristics of mid-term and long-term base-level cycles and the distribution of sand bodies and the distribution of sedimentary facies. The evaluation results are instructive to the comprehensive adjustments during the middle or late stage of oil-field development. The evaluation methods are significant to the similar reservoir.