吉林油田花敖泡地区青山口组青一段油藏特征分析

Analysis of the Characteristics of the First Member of Qingshankou Formation in Aobaota Area of Jilin Oil Field

为搞清吉林油田花敖泡地区青一段储量分布情况,为勘探部署工作提供更好的理念依据。通过对花敖泡地区沉积特征、砂岩分布特征、成藏条件、油水分布规律及油气成藏规律的分析,确定了该区砂体及油水分布情况、油藏类型。花敖泡地区在青一段沉积时期主要受西南部沉积体系控制,砂体主要分布在Ⅱ—Ⅳ砂组。油层主要分布于Ⅲ、Ⅳ砂组。本区存在两种油藏,即岩性油藏和断层-岩性油藏。

According to analyze geological features, sandstone distribution features, reservoir forming condition, oil and water distribution and hydrocarbon accumulation rules of Aobaota area of Jilin oil field, oil and water distri- bution have determined as well as reservoir types, which can find out the reserves distribution of the first member of Qingshankou formation in Aobaota area and provide better theory ideas for the oil exploration. Controlled by the southwest deposition system, the sand bodies of the first member of Qingshankou formation in Aobaota area are mainly distributed on the Ⅱ-Ⅳ sand groups and the oil layers are mainly distributed on the Ⅲ and Ⅳ sand groups. Therefore, in this area, the reservoir types include lithologic reservoir and fault-lithologic reservoir.