The Ordos Basin is the second size basin rich in oil and gas in China mainland. The Upper Paleozoic gas reservoir in this basin has some similarities with the Alberta deep basin gas trap in Canada. The key problem for the gas pool is that the formation mechanism is not clear.
In this study, more than 100 reservoir sandstone samples and 20 source rock samples were taken from this basin and investigated by the combination method of geochemistry and geology, including fluid inclusion techniques, PVTsim ...