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基于东地中海黎凡特盆地地质、地震等资料,恢复主要地质时期原型盆地及岩相古地理,开展盆地构造特征对比分析,并结合已发现气藏特征解剖,建立成藏模式,探讨该区有利成藏组合及下一步勘探方向。黎凡特盆地主要发育有基底断裂(F1)、被动大陆边缘中期正断层(F2)和被动大陆边缘晚期断层(包括黎凡特逆断层和东地中海正断层,F3)等3期构造。F1断裂主要受控于陆内坳陷,盆地南部深水地区受后期挤压应力影响较小;F2断层主要受侧向构造应力和叙利亚弧型褶皱带(Syrian Arc Fold Belt)影响,构造活动由北向南、由东向西逐渐减弱;受碰撞挤压和死海走滑断裂带影响,F3断层十分发育,但并未刺穿上中新统厚层蒸发岩。结合已发现油气藏及露头情况,认为以色列远岸邻近埃拉托色尼隆起(Eratosthenes Seamount)的深水地区中生界砂岩、碳酸盐岩及黎巴嫩深水地区新生界碳酸盐岩和塔马尔砂岩为下一步主要勘探方向。图8表1参34
Based on the geology and seismic data of the Levantat Basin in the Eastern Mediterranean, the prototype basin and lithofacies palaeogeography in the main geologic period are restored and the structural features of the basin are compared and analyzed. Based on the characteristic anatomy of the discovered gas reservoirs, the reservoir forming mode is established, Reservoiring combination and next exploration direction. The main evolution of the Levantan basin includes three phases: basement fault (F1), passive normal continental fault (F2) and passive continental margin late faults (including the Levantat fault and eastern Mediterranean fault, F3). The F1 fault is mainly controlled by intracontinental depression, and the southern part of the basin is less affected by post-extrusion stress. The F2 fault is mainly affected by the lateral tectonic stress and the Syrian Arc Fold Belt. The tectonic activity changes from north to South, gradually weakened from east to west. Due to the impact crushing and compression and the Dead Sea strike-slip fault zone, the F3 fault developed well but did not pierce through the upper Miocene thick evaporite. Combined with the discovered reservoirs and outcrops, it is considered that the Israel’s far shore is close to the Mesozoic sandstones and carbonate rocks in the deep waters of the Eratosthenes Seamount and the Cenozoic carbonates and Tamar sandstones in the Lebanon deep-water region For the next major exploration direction. Figure 8 Table 1 Reference 34