CAJ | 학술논문

泰国湾区域经历了前裂谷期、裂谷期、裂后期的构造演化阶段，形成了多个裂谷盆地。泰国湾区域东北部在渐新世经历了一次明显构造反转，较泰国湾区域大部分地区强烈。通过对比区内钻井，结合地震解释，对该区的沉积特征和构造演化进行了分析，认为这次反转构造导致了反转构造带上构造、沉积特征与邻区有较大的不同。由于这次反转构造，泰国湾东北部在新层系发育新类型的油气系统，即深部的始新统油气系统：烃源岩为中始新统湖相泥岩，储层为上始新统-渐新统三角洲相砂岩，盖层为下中新统三角洲前缘相泥岩和上中新统以上的海相泥岩。该油气成藏系统已被钻井钻遇油气显示，是本区有效油气成藏系统。
태국만구역경력료전렬곡기、렬곡기、렬후기적구조연화계단，형성료다개렬곡분지。태국만구역동북부재점신세경력료일차명현구조반전，교태국만구역대부분지구강렬。통과대비구내찬정，결합지진해석，대해구적침적특정화구조연화진행료분석，인위저차반전구조도치료반전구조대상구조、침적특정여린구유교대적불동。유우저차반전구조，태국만동북부재신층계발육신류형적유기계통，즉심부적시신통유기계통：경원암위중시신통호상니암，저층위상시신통-점신통삼각주상사암，개층위하중신통삼각주전연상니암화상중신통이상적해상니암。해유기성장계통이피찬정찬우유기현시，시본구유효유기성장계통。
Gulf of Thailand experienced pre-rift,rift and post rift tectonic evolution stages. In sequence, there developed several rift basins. However,the northeast part was influenced by a reversion event,and stronger than other area. The wells in reversion structure and adjacent area and the seismic facies in this area were analyzed in this paper. Furthermore,we analyzed the sediment facies and tectonic evolution sta-ges. It can be concluded that the tectonic style and sediment facies have great difference with adjacent area. Thus,there developed newpetroleum play innew exploration formation that has not been discovered:Eo-cene lacustrine shale acts as efficient source rock;Eocene-Oligocene deltaic sandstone acts as reservoir;Lower Miocene delta front shale and Upper Miocene Marine shale act as seals in this play. Eocene petrole-um play has been drilled by exploration well in study area,which is proved as effective play in Gulf of Thailand area.