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塔里木盆地断裂极为发育,它对油气的控制作用主要表现为输导性和封闭性。输导性表现为(1)沿断裂带有丰富的油气显示;(2)输导油气具交替性;(3)沟通下伏生油层与上覆储集层的联系;(4)断层切割众多的不同母质类型的生油层,造成圈闭中不同性质的源者混合。封闭性则因断裂系统及断层的几何学和运动学特征不同而存在差异。正断层的封闭性主要与断层内的物质流动,以及下盘储油层与上盘泥质岩对接有关;道断层的封闭性主要与断裂带断层泥、糜棱岩和断层一盘储集告与另一盘非渗透告对接有关。较高级别的大断裂对油气主要起输导作用,较低级别的小断裂对油气主要起封闭作用,它们共同构成了油气垂向运移的通道和聚集场所。
The faults in the Tarim Basin are extremely developed. Their control over oil and gas is mainly manifested as conductivity and sealing. The conductivity is characterized by: (1) rich oil and gas shows along the fault; (2) alternating oil and gas transports; (3) communication between the underlying oil and overlying reservoirs; and (4) Of the different parent material types of the formation, resulting in traps of different nature of the source mix. Sealing is differentiated by the geometric and kinematic characteristics of the fault system and fault. The sealing of the normal fault is mainly related to the material flow within the fault and the docking of the lower plate reservoir with the argillaceous mudstone of the upper plate. The sealing of the fault is mainly related to the fault mud, mylonite and fault in the fault zone Another non-penetrating report docking related. The higher-level faults are mainly responsible for the oil and gas transmission. The lower-level faults are mainly responsible for the sealing of oil and gas. They together form the vertical migration channel and gathering place for oil and gas.