The aim of this work is to explore the extraction conditions of Pistacia chinensis bunge oil and to optimize the technological parameters for preparing biodiesel.

,the article lucubrates the petrological features,porosity and permeability features and pore types of main productive reservoirs of Yanan Formation in Mahuangshan Oil Field in Erdes Basin and analyzes the main factors that infiuent the capaci- ty of reservoirs and also makes an evaluation on main reservoirs classified.