增生楔油气地质特征及勘探潜力——以缅甸某区块为例

增生楔地区油气勘探因其强烈的构造变形和复杂的地质背景很少有人涉足。缅甸若开海岸地处印度板块与欧亚板块的交会处，是典型的增生楔构造。以缅甸若开海岸某区块为例，通过对该区的基本石油地质条件深入分析，搞清了该区的成藏规律。分析认为该区具备较好的生烃条件，但强烈的构造运动一方面使得本来就相变快的储层变得更加不连续，另一方面使得早期形成的油气藏多被破坏。综合分析认为，保存条件是制约该区油气成藏的关键因素，未来油气勘探应以寻找构造活动相对较弱、保存条件好的区带为主。

Petroleum Geologic Characteristics and Exploration Potential of Accretionary Wedge in Myanmar

The petroleum geology on accretionary wedge was seldom studied as its intensive tectonic deformation and complex geologic setting.Rakhine coast of Myanmar is a typical accretionary wedge,which lies in the conjunction area of the Eurasian Plate and Indian Plate.Petroleum geologic characteristics and accumulation patterns are discussed here in a certain exploration block in Rakhine coast.There is good hydrocarbon generation ability in this area,but the tectonic movements are so intensive that the reservoir became more discontinuous and the former petroleum reservoirs were destroyed.It is concluded that preservation ability is the key factor of hydrocarbon accumulation.Searching for better preservation condition areas is the target for future petroleum exploration.