塔里木克拉通盆地油气勘探对策

Oil and gas exploration strategy in Tarim cratonic basin.

塔里木克拉通盆地具有海相多旋回发展的特征。相应地 ,油气藏的形成宜具有多期性。对于这类复杂盆地的油气勘探 ,必须有一套合适的勘探对策 ,它取决于对油气分布规律的认识程度。通过对塔中、塔北、哈得逊、巴楚地区典型油气藏成藏过程的分析 ,可以将台盆区油气藏的成藏过程概括为 :三期成藏、两期调整 ,三种基本的油气运移、聚集模式 ,油气分布受克拉通盆地不同演化时期的 8个供烃中心控制。油气勘探的对策应该以油气分布的基本规律为指导 ,把握住油气分布的总格局 ,即寒武系烃源岩海西期以来形成的供烃中心基本控制了克拉通盆地油气分布 ,对于不同的地区 ,必须以这些油气成藏主控因素为依据 ,主攻不同的层系 ,寻找不同时期、不同类型的油气藏。图 3参

Tarim cratonic basin is a marine multiple cyclic basin with multiple oil migration and charging. The strategy of oil exploration to cratonic basin is based on the controlling degree to the oil distribution. According to the analyses of typical oil reservoirs in Tazhong, Tabei, Hadexun, Bachu, it can be concluded that oil distribution in cr atonic basin is controlled by 8 hydrocarbon supplying centers in geological per iod. In this basin there are three oil migration and charging models and Oil res ervoirs were adjusted by two times. So the strategy of oil exploration must be b uilt according to the oil distribution law. In different plays there are differe nt oil bearing layers and oil reservoir types.