The Tectonic Kinematic Process and the Types of Oil and Gas Reservoirs in Northern Margin of Qaidam Basin

We discussed a few questions about the relationship between the tectonic kinematic process and the reservoir formation in northern margin of Qaidam basin.Through our research we believed that the dynamic mechanism of basin-mountain coupling system was the most important factor of the oil and gas accumulations in the Mesozoic-Cenozoic Era.The fault blocks of the northern margin of Qaidam basin were uplifted in Yanshan Period and early Himalayan Period.But the speeds were different because of their different tectonic location and nature.The fault block which uplifted slowly gradually turned into the down-warped block fault depression.Fault zones around the Qaidam basin were uplifted and thrusted into the basin in the late Himalayan Period,leading to the folding and faulting of the Cenozoic strata.But these structural characteristics were exactly conducive to hydrocarbon accumulation.