Reservoir bitumen genesis and its impacts on hydrocarbon migration and accumulation:a case study from Chang 81 of Yangchang Fomation in Huaqing area,the Ordos Basin
Chen Shijia, Yao Jingli, Lu Jungang, Yang Guoping, Wen Yanchun, Zhang Jizhi, Shi Zhenghao
Oil & Gas Geology . 2012, (1): 37 -44 .  DOI: 10.11743/ogg20120105