论文部分内容阅读
东濮凹陷是渤海湾盆地的一个构造单元,位于豫、鲁和冀三省交界处,面积5300km2。具有丰富的油气资源,是中国东部唯一的既富油又富气的凹陷。东濮凹陷具有形成天然气藏的良好地质条件。东濮凹陷天然气按成因分为煤成气、油成气和混合气,每种天然气在组分、碳同位素、氩同位素等方面有较大差异。煤成气藏成藏期有一次,大约在35-20Ma之间。油型气成藏期为两次,第一期为25-20Ma,第二期为2Ma以来。生烃中心,烃源岩热演化程度,区域生、储、盖组合关系控制了气藏的分布规律。
Dongpu Depression is a structural unit in the Bohai Bay Basin, located at the junction of Henan, Shandong and Hebei provinces, an area of 5300km2. Rich in oil and gas resources, it is the only depression rich in oil and rich in eastern China. Dongpu Depression with the formation of natural gas reservoirs of good geological conditions. The natural gas in Dongpu Depression is divided into coal-formed gas, oil-gas and gas by genesis. Each natural gas has great difference in composition, carbon isotope and argon isotope. Gas into the gas reservoir once, about 35-20Ma between. Oil gas accumulation period of two times, the first period of 25-20Ma, the second period since 2Ma. The hydrocarbon generation center, the degree of thermal evolution of source rock, and the regional relationship of reservoir, reservoir and cover control the distribution of gas reservoirs.