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了解单个石油包裹体详细的组分信息不仅有助于微观上定量认识油气充注过程中其成熟度的演化,还对精细刻画油气成藏过程中动力演化具有重要意义.根据石油包裹体热动力学原理,利用10个成熟度依次增大的已知组分的原油在匹配其饱和压力和改进气、液相摩尔体积计算前提下,建立了捕获不同组分原油的包裹体均一温度(Thoil)与其在室温下(20℃)气泡充填度(Fv)关系的标准图版,从而通过对比实测的Thoil和其室温下Fv与标准Thoil-Fv图版,反推出油包裹体近似等效流体组分.对东营凹陷北带民丰深层油包裹体进行系统荧光分析、显微测温和包裹体体积3D重构等一系列的测定.结果表明丰8井和丰深1井各发生过两幕油气充注,其中丰8井第一幕油气充注(甲烷摩尔含量位于31%～35%之间)对其油气成藏贡献最大;而丰深1井第二幕充注的油气(甲烷摩尔含量大于60%)控制丰深1井凝析油藏成藏.从而为进一步厘定北带深层油气充注PVTxt史奠定基础.
Understanding the detailed compositional information of a single petroleum inclusion not only helps to quantitatively understand the evolution of maturity in the process of oil and gas filling, but also plays an important role in fine depiction of the dynamic evolution during the hydrocarbon accumulation.According to the thermal dynamics of petroleum inclusions Based on the principle of learning, the crude oil with 10 components with increasing maturity was used to capture the inclusions of different components of crude oil under the premise of matching its saturated pressure and improving the gas-liquid molar volume. (20 ° C) at room temperature (20 ° C) so that approximately equivalent fluid components of oil inclusions can be deduced by comparing the measured Thoil with its room temperature Fv and standard Thoil-Fv plates A series of determination of deep oil inclusions in Minfeng area in the northern part of Dongying sag by means of fluorescence analysis, microscopic temperature measurement and volume reconstruction of inclusions show that there are two episodes of oil and gas charge in Feng 8 and Fengshen 1 wells , Of which the first episode of Feng 8 oil and gas charge (methane molar content between 31% and 35%) contributes the most to its hydrocarbon accumulation; and the oil and gas (the molar content of methane is more than 60 %) Control well 1 well Analysis of oil reservoirs. So as to further determine the north with deep hydrocarbon charge PVTxt history of the foundation.