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为了对南美洲谱图马约—奥连特—马拉农(简称POM)盆地油气资源潜力开展重新评价,基于最新的地震、测井和油气藏储量等数据,在盆地成藏要素综合分析基础上,以储集层为核心划分出9套成藏组合。以成藏组合为核心,采用主观概率法和规模序列法预测9套成藏组合内待发现油气可采资源量11.0×108 t,其中Hollin组砂岩、Napo组T段砂岩、Napo组U段砂岩和Napo组M1段砂岩4套成藏组合内待发现可采资源量(10.4×108 t)占全盆地待发现可采资源量的94%。在烃源岩、储集层、圈闭、运移、盖层和保存等成藏要素评价的基础上,应用资源-地质风险概率双因素法优选出4个Ⅰ类成藏组合、2个Ⅱ类成藏组合、3个Ⅲ类成藏组合。应用成藏组合范围叠合法优选出盆地中部为最有利勘探区。
In order to re-evaluate the hydrocarbon potential of the Mayo-Oriente-Maranen (referred to as POM) basin in South America, based on the latest data on earthquakes, logging and reservoir reserves, On the reservoir as the core divided into nine sets of reservoir combinations. Taking the reservoir assemblage as the core, subjective probabilistic method and scale sequence method are used to predict the recoverable resources of 9 sets of reservoirs within 11.0 × 108t, including Hollin sandstone, Napo T sandstone, Napo U sandstone And reclaimed recoverable resources (10.4 × 108t) within 4 sets of M1 sandstone in Napo Formation account for 94% of the recoverable resources to be found in the whole basin. Based on the evaluation of hydrocarbon accumulation elements such as source rocks, reservoirs, traps, migrations, cap rocks and deposits, four type Ⅰ reservoir assemblages and two Ⅱ The type of reservoir assemblage, three Class Ⅲ reservoir formation. It is suggested that the central basin should be the most favorable exploration area by using the combination of reservoir formation and superimposition method.