沙113井区油藏描述研究

Description and research on the reservoir of Sha-113 well field

通过地层对比、地震解释、构造研究、沉积相等方面对克拉玛依油田沙113井区进行油藏精细描述的研究,采用"旋回对比、标志层控制、厚度约束"的方法将目的层进行划分至6个大层、20个小层,并通过"井震结合"方法解释出20条断层,通过测井资料解释出平均油层厚度为6.7 m,叠合含油面积7.65 km2,并运用单砂层储量叠加法对储量进行了计算,将储量计算细分到单砂体,最终估算出地质储量482.7×104t,为搞清区块剩余油分布特征和滚动开发提供了依据。

Based on stratigraphic correlation, seismic interpretation, tectonic research and sedimentary facies, this paper does a re- search on fine reservoir description of Sha-113 well field of Karamay oilfield. By the means of ＇cycle comparison, marked layer control and thickness restriction＇, this paper divided the target layer into 6 big layers and 20 small layers. This paper interpreted 20 fault layers by using ＇well-seismic combination＇ method and interpreted that average layer thickness is 6.7 m and overlapped oil-bearing area is 7.65 kna2 by using logging data. By using reserve superposition method of single sand layer and subdividing re- serve calculation into single sand body, this paper estimated that geological reserves are 4,827,000 t. The results provided referenc- es for exploration of residual oil distribution features and rolling development of the area.