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孤岛、胜坨油田为济阳坳陷内的两个大油田。前者储集层系上第三系中新统上馆陶组,属河流相沉积;后者储集层系下第三系渐新统沙河街组,主要为河流、三角洲相沉积。该二油田均为平缓的背斜圈闭,构造倾角最大不超过6°。开展倾角测井的主要目的是研究储集层的古流向及建立砂体模式。通过工作取得了以下认识: 一、古流向孤岛油田:由于对上馆陶组储集层缺少区域性研究,对古流向只能作间接推断。在中20—28、中26—34、中30—30三口井进行倾角测井,对这三口井矢量显示古流向清楚的18个
Gudao and Shengtuo fields are two large oil fields in Jiyang depression. The former reservoirs belong to the Guantao Formation of Miocene on the Tertiary, belonging to the river facies sedimentation. The latter, the Shahejie Formation of the Oligocene, is mainly composed of rivers and deltas. The two oil fields are gentle anticline traps, the maximum structural dip does not exceed 6 °. The main purpose of dip logging is to study the paleocurrent direction of the reservoir and establish the sand body model. The following understandings have been obtained through the work: I. Ancient Flow to Gudao Oilfield: Due to the lack of regional research on the reservoir of Upper Guantao Formation, the ancient flow can only be indirectly inferred. Inclination logging was performed in three wells, 20-28, 26-34, and 30-30, and the vectors of the three wells showed a clear flow of 18