CAJ | 학술논문

巴西桑托斯盆地深水区白垩系-新生界的油气绝大部分分布于圣保罗高地，其次分布于盆地陆坡坳陷区。盆地的下白垩统区域性蒸发岩盖层为盐下油气藏的形成提供了保证。根据盆地的构造格局以及烃源岩、储集层和油气分布的特征，划分出两个含油气系统：下白垩统含油气系统和上白垩统含油气系统，下白垩统含油气系统还可划分为盐下和盐上两个成藏组合。划定了含油气系统在盆地中的分布范围。认为圣保罗高地下白垩统盐下Guaratiba群湖相碳酸盐岩层系最有勘探潜力，盆地北部和中部的上白垩统土伦阶Ilhabela段浊积岩和新生界Marambaia组内浊积岩储层具有较大的勘探潜力，西南部下白垩统盐上Guaruja组海相碳酸盐岩储层亦有一定的勘探潜力。
파서상탁사분지심수구백성계-신생계적유기절대부분분포우골보라고지，기차분포우분지륙파요함구。분지적하백성통구역성증발암개층위염하유기장적형성제공료보증。근거분지적구조격국이급경원암、저집층화유기분포적특정，화분출량개함유기계통：하백성통함유기계통화상백성통함유기계통，하백성통함유기계통환가화분위염하화염상량개성장조합。화정료함유기계통재분지중적분포범위。인위골보라고지하백성통염하Guaratiba군호상탄산염암층계최유감탐잠력，분지북부화중부적상백성통토륜계Ilhabela단탁적암화신생계Marambaia조내탁적암저층구유교대적감탐잠력，서남부하백성통염상Guaruja조해상탄산염암저층역유일정적감탐잠력。
Most of the Cretaceous and Cenozoic deep-water oil and gas fields are distributed in Sao Paulo High, and others in depressions in the slope, Santos Basin. The development of regional Lower Cretaceous evaporite seal ensures the entrapment of hydrocarbon in the sub-salt sequence. Based on studies on the structural framework of the basin and the features of source rocks, reservoirs and hydrocarbon distribution, the Santos Basin is divided into two petroleum systems, the Lower Cretaceous one and the Upper Cretaceous one. The Lower Cretaceous petroleum system can be further divided into the post-salt and pre-salt plays. Subsequently the extent of petroleum systems is delimited. It is suggested that the pre-salt lacustrine carbonate rock in Lower Cretaceous Guaratiba Group on the Sao Paulo High is of the greatest exploration potential. The turbidite of Turonian Ilhabela Member and the turbidite within Cenozoic Marambaia Formation in the northern and central parts of the basin rank the second, and the marine carbonate rock of Lower Cretaceous Guaruja Formation in the southwestern part of the basin is also a certain exploration potential.