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塔北沙雅隆起××构造的油气主要产于下古生界的奥陶系。根据前期相关资料,该区烃源岩厚度大,分布十分广泛,有机质丰度高。储层以缝洞型为主,发育良好,其中礁滩孔隙型储层是塔河油田外围首次发现的新型储层,其孔隙度平均达4.87％,渗透率平均值达0.9×10~(-3)μm~2,是奥陶系迄今为止发现的最好储集层。它对塔河油田向南拓展将产生积极影响,构造特征为阿克库勒凸起向西南方向延伸的斜坡上形成的一个残丘。该构造的断裂活动主要发生于印支——燕山期,它具有断距小、水平延伸短的特点,圈闭类型有不整合潜山型等。新型礁滩孔隙型圈闭应引起我们的足够重视。
Oil and gas from the Shaxi uplift in the Tabar area mainly originated from the Ordovician in the Lower Paleozoic. According to the previous relevant data, the source rock in this area has a large thickness, a very wide distribution and a high abundance of organic matter. The reservoirs are predominantly fractured and well developed. The reef beach pore reservoir is the first discovery of new reservoirs in the periphery of Tahe Oilfield, with an average porosity of 4.87% and an average permeability of 0.9 × 10 ~ (-1) 3) μm ~ 2, is the best reservoir ever discovered by Ordovician. It will have a positive impact on the southward expansion of the Tahe oilfield and is characterized by a residual hillock formed on a slope extending to the southwest of the Ackullar Bulge. The tectonic fault activity occurred mainly during the Indosinian-Yanshanian period. It has the characteristics of small fault interval and short horizontal extension, and the trap types include unconformity buried hill type. The new reef beach pore trap should arouse our attention enough.