Effect of Clay Minerals and Rock Fabric on Hydrocarbon Generation and Retention by Thermal Pyrolysis of Maoming Oil Shale

In traditional kerogen pyrolysis experiments, the effects of minerals and rock fabric on products were ignored. To further clarify role mineral matrix hydrocarbon generation retention, a closed anhydrous experiment was conducted core plugs, powdered from clay-rich sample Maoming oil shale within temperature range 312 °C to 600 °C, at fixed pressure 30 Mpa. The experiment’s results showed that yields heavy hydrocarbons (C14+) generated plugs obviously lower than kerogen, which may be caused by retention effect clay in raw shale. gaseous compared with due C2+ intact preferential methane. Light (C6-14) higher consequence cleavage extraction bitumen interactions kerogen. Moreover, ratios iso normal paraffin (iC4/nC4, iC5/nC5) Our experimental show confined system overestimate potential negligence fabric, especially source rocks rich minerals.