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油气充注是勘探成败的主要地质因素,油气充注定量分析是勘探研究中的难点和重点。通过与盆地数值模拟法的对比可知,利用汇聚单元分析法进行油气充注定量分析克服了盆地数值模拟法的不足。通过圈闭的油气汇聚单元把圈闭和烃源岩有机地联系起来,考虑了多种地质因素研究的不确定性,突出了研究圈闭的油气充注量及其发生概率,以适应勘探生产的需求,对目标评价和勘探决策具有重要意义。以南黄海盆地诸城北部凹陷A圈闭为例,利用汇聚单元法进行了圈闭的油气充注定量分析,并得出了诸城A圈闭的烃类充注以油为主且充注风险较小的认识。
Oil and gas filling is the main geological success or failure of exploration. Quantitative analysis of oil and gas filling is a difficult and important point in exploration and study. Comparing with the numerical simulation of the basin, we can see that the quantitative analysis of hydrocarbon filling by the convergence unit method overcomes the shortcomings of numerical simulation of the basin. By trapping the hydrocarbon accumulation units, the traps and source rocks are organically connected. Considering the uncertainties of various geological factors, the amount of oil and gas charged in the traps and the probability of their occurrence are highlighted to suit exploration and production The needs of the target evaluation and exploration of decision-making is of great significance. Taking trap A in the northern depression of Zhucheng in the South Yellow Sea basin as an example, quantitative analysis of trapping hydrocarbon in the trap was made by means of convergent unit method. It is concluded that the hydrocarbon charge in Zhucheng A trap is mainly oil and the charge risk is higher Little understanding.