丈方台区块油藏特征及油水分布关系探讨

Study on the Characteristics of Oil Reservoirs and Oil-water Distribution Relationship in the Zhangfangtai Block

丈方台油区目前所有层系均未投入注水开发,开发方式仍然主要依靠弹性驱+溶解气驱的天然能量,地层能量和油井产量都下降较快,影响了该区的开发效果。通过对丈方台区块油藏进行精细研究,弄清了延10、长6、长7等主力含油层系的沉积特征、油藏类型及油水分布关系,对今后开发方案的调整具有重要的意义。

Currently,all layers in the Zhangfangtai oil field have not been put into water injection development,and the development method still mainly relies on the natural energy of elastic flooding and dissolved gas flooding.The formation energy and oil well production have decreased rapidly,which has affected the development effect of the area.This article conducts a detailed study of the reservoirs in the Zhangfangtai block to clarify the sedimentary characteristics,reservoir types,and oil-water distribution relationship of the main oil-bearing layers such as Yan 10,Chang 6,and Chang 7,The adjustment of future development plans is of great significance.