梁庄长_2~2水动力油藏形成条件

The Forming Condition of the Hydrodynamic Reservoir in Liangzhuang

论述了一个大型平缓斜坡带上块状砂岩中一种油藏形成的地质条件。大量的钻井、试油等资料证实，下倾部位产油、上倾部位产水。研究表明，油气分布受三角洲平原分流河道亚相的控制，油气富集受该相带上的鼻状构造所制约，最终形成油藏是由于上倾方向水动力封闭的结果。

The geological conditions of a block-shaped sandstone reservoir formed on a 1arge gentleslope zone are stated in this paper. Drilling materials and test data confirm that oil produced in the downdiptraps and water in the updip ones. The result of study shows that oil distribution is controlled by branchchannel facies on delta plain and the oil accumulation is constrained by nose-structure on this facies. Because the hydrodynamic closure comes from up-dip direction, the reservoir was finally formed.