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尚家地区位于三肇源区之外,且泉二段储层又位于青一段源岩之下,以此认识为基础,分析了三肇源区青一段油向尚家地区泉头组的运移机制。三肇源区青一段油在超压作用下通过T2源断裂向下“倒灌”运移进入扶杨油层,然后在浮力作用下通过被断裂沟通的砂体侧向运移至尚家地区,并直接进入与扶杨油层相接触的泉二段高断块圈闭中聚集成藏。尚家地区泉二段油成藏与分布主要受泉二段高断块圈闭发育、高断块圈闭位于油运移路径上和高断块圈闭内砂体发育3个因素的影响。通过主控因素分析得出,尚家地区泉二段油成藏的Ⅰ类有利区分布在尚9-6、尚118-120、尚124-112井等区域内及升26-14井周围,Ⅱ类有利区主要分布在尚9-6和尚118-120井一线的北部地区。
Shangjia region is located outside the San Zhaoyuan area, and the second member of the Quanquan reservoir is located under the Qingyuan source rock. On the basis of this understanding, the analysis of the transportation of Qingyizhan oil from Sanzhao source area to the Quantu formation in Shangjia area Move mechanism. A section of oil in the Third Zhaoyuan area is transported to the Fuyang oil layer by T2 source fracture under the action of overpressure and then transported into the Fuyang oil layer by the buoyant force and transported laterally to the Shangjia area through the fractured communicating sand body , And went directly into the upper fault block of the second member of the Spring Block that is in contact with the Fuyang reservoir to accumulate and accumulate. The reservoir formation and distribution of the oil in the second member of the Shangjia area are mainly affected by the development of the high fault blocks in the second member of the Quaternary fault zone, the high fault block trap located in the oil migration path and the sandbody development in the high fault block trap. According to the analysis of the main controlling factors, the favorable areas of type Ⅰ in the second member of Quan2 area in Shangjia area are distributed in the areas of Shang 9-6, Shang 118-120, Shang 124-112, Class II favorable areas are mainly distributed in the northern part of the Shang 9-6 monk 118-120 well line.