CAJ | 학술논문

　　坎波斯与桑托斯盆地油气资源非常丰富。2个盆地均经历了裂谷、过渡、被动大陆边缘3个构造阶段，发育盐下陆相层序、盐岩层序、盐上海相层序，形成盐下、盐上2套成藏组合。由于盆地构造格架不同，导致盐岩分布、盐下储层发育程度的差异，加之盐上储层分布的不同，造成2个盆地油气分布特征的巨大差异。桑托斯盆地油气主要分布在外部高地带的盐下领域，而坎波斯盆地油气主要富集在中部低凸带的盐上储层中。通过分析2个盆地的构造演化及地层发育特征、成藏条件及主控因素，优选了盐下、盐上成藏组合的有利区，剖析了2个盆地成藏条件的异同，可指导我国石油公司在这2个盆地新项目评价和在执行区块的勘探部署。
　　감파사여상탁사분지유기자원비상봉부。2개분지균경력료렬곡、과도、피동대륙변연3개구조계단，발육염하륙상층서、염암층서、염상해상층서，형성염하、염상2투성장조합。유우분지구조격가불동，도치염암분포、염하저층발육정도적차이，가지염상저층분포적불동，조성2개분지유기분포특정적거대차이。상탁사분지유기주요분포재외부고지대적염하영역，이감파사분지유기주요부집재중부저철대적염상저층중。통과분석2개분지적구조연화급지층발육특정、성장조건급주공인소，우선료염하、염상성장조합적유리구，부석료2개분지성장조건적이동，가지도아국석유공사재저2개분지신항목평개화재집행구괴적감탐부서。
The Campos and Santos Basins are rich in petroleum. Both of the 2 basins have experienced 3 phases of tectonic evolution (rift, transition and passive continental margin), depositing 3 corresponding sedimentary mega-sequences (pre-salt continental sequence, salt sequence and post-salt marine sequence), and forming 2 plays (pre-salt play and post-salt play). Due to different tectonic frameworks, salt distribution and pre-salt reservoir development patterns are different in the 2 basins. Combining with different post-salt reservoir distribution, obvious difference exists in petroleum distribution between the 2 basins. Petroleum in the Santos Basin mainly distributes in pre-salt sequences of the outer basement plateau while petroleum in the Campos Basin accumulates in post-salt reser-voirs of the central low uplift. Based on the analyses of tectonic evolution, sedimentation characteristics and major controlling factors, the favorable exploration zones for pre-and post-salt reservoirs are defined. The differences of accumulation condition between the 2 basins are discussed. The studies may provide Chinese companies a guide for new business development and executing blocks’ exploration activities in the 2 basins.