层序约束储层预测技术在巴西Campos盆地M区块的应用

Application of Sequence Constraint Reservoir Prediction Technique in Brazil′s Campos Basin Block M

随着海外油气勘探对象已经从常规的构造圈闭转向了岩性、地层为主的非构造型圈闭。这类圈闭更复杂,对储层预测技术的要求更高。通过联合应用层序地层学与储层反演技术,对Campos盆地M区块上白垩统C组地层开展对岩性圈闭的识别,识别出4个有效砂体。研究结果表明层序约束下的储层预测技术可以提高储层预测的精度。

As the overseas oil and gas exploration targets have turned to non-structural type traps with the core of lithology and stratigraphy from the conventional structural traps. Such traps are more complex, and have higher requirements on reservoir prediction technology. Through the combination of sequence stratigraphy and reservoir inversion technique, this paper carried out the lithologic traps recognition of Cretaceous Group strata C in the Campos Basin Block M and identified four effective sands. The results showed that reservoir prediction technique under sequence constraint can improve the reservoir prediction accuracy.