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在伏尔加—乌拉尔含油气省发现了1900多个油气藏。几乎所有这些油气藏都同背斜隆起或礁块有关,即油气藏分布在构造的最高部位。可能,这在很大程度上是由于找油建立在背斜理论或重力理论的缘故,此理论的前题之一是地下水为静止状态。在油气普查工作中这种理论是有效的,但它仅反映了油气藏形成的一部分情况。近年来,分析乌拉尔—伏尔加的含油气远景时,碳氢化合物聚集的水动力理论获得了越来越多人的承认。根据这种理论,在具有任何构造特点的部位上均可形成油气藏,
More than 1,900 reservoirs have been discovered in the Volga-Ural Petroliferous Province. Almost all of these reservoirs are associated with anticlines or reefs, ie, the reservoirs are located in the highest part of the structure. Probably, this is due in large part to the fact that oil discovery is based on the theory of anticlinorium or gravity, and one of the propositions of this theory is that groundwater is at rest. This theory is valid in oil and gas census work, but it only reflects a part of the formation of oil and gas reservoirs. In recent years, more and more people recognized the hydrodynamic theory of hydrocarbon accumulation when analyzing the oil-gas prospect of the Urals-Volga region. According to this theory, reservoirs can be formed on the site with any structural feature,