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乌-夏地区发育油气藏类型主要有背斜油气藏、断层油气藏、岩性油气藏、稠油封闭油气藏和复合油气藏,稠油封闭油气藏是乌-夏地区典型的油气藏类型。乌-夏地区主要含油层位为风城组、夏子街组、下乌尔禾组、百口泉组、克下组、克上组和八道湾组等3个层系的7层组。各种类型油气藏中,与断层有关的油气藏数量最多,而岩性油气藏数量虽少,但对储量的贡献却相对很大,因此岩性油气藏和断层-岩性油气藏是下一步勘探的重点。乌-夏地区稠油油藏储量非常丰富,所以对稠油油藏成藏机理和勘探开发方法进行深入研究很有意义。
The main types of reservoirs developed in the Wu-Xia region are anticlinal reservoirs, fault reservoirs, lithologic reservoirs, heavy oil-enclosed reservoirs and composite reservoirs, and heavy-oil confined reservoirs are typical types of reservoirs in the Wu-Xia region. The main oil reservoirs in the Wu-Xia region are the 7th-level group of 3 strata, namely, Fengcheng Formation, Xiaziji Formation, Xiawuerhe Formation, Baikouquan Formation, Kexia Formation, Ke-Shang Formation and Badaowan Formation. Of the various types of reservoirs, the fault-related reservoirs have the largest number of reservoirs, while lithologic reservoirs have a small but relatively large contribution to reserves, so lithologic reservoirs and fault-lithologic reservoirs are the next step The focus of exploration. The heavy oil reservoirs in the Wu-Xia region are very rich, so it is very meaningful to conduct deep research on the accumulation mechanism and exploration and development methods of heavy oil reservoirs.