关键词: 断裂控烃理论, 柴达木盆地, 断裂, 油气勘探, 油气分布

Abstract: The fault control hydrocarbon theory indicates that the fault is a basic factor for controlling hydrocarbon generation,migration,accumulation,scattering and distribution,and the relationship between faults and hydrocarbon accumulation implies the relationship between branch and fruit or cane and melon.A scientific exploration thought should be to fetch fruits (hydrocarbon accumulations) along branches (faults) or to look for melons (hydrocarbon accumulations) along the canes (faults).The features of fault controlling hydrocarbon in Qaidam Basin are very obvious.The controlling laws of fault for hydrocarbon generation,migration,accumulation,scattering and distribution are also obvious.The faults for controlling hydrocarbon are very active and there is a great potential of oil and gas resources in the middle region of Qaidam Basin.The middle region of the basin has the geological conditions for forming the huge hydrocarbon accumulations,and may be the most important and possible exploration belt.The tectonic belt of E-Bo-Liang (Ⅲ)-Yikeyawuru-Yahu-Tajinaier in Niudong-Yiliping depression and the tectonic traps of Jian-Shishan-Luoyanshan-Chuansiqiu and Hongsan-han in middle southern rift of Qaidam Basin are the first chosen exploration target for a significant breakthrough of oil and gas exploration.

Key words: fault control hydrocarbon theory, Qaidam Basin, fault, oil and gas exploration, oil and gas distribution