1. Key
Laboratory of Tectonics and Petroleum Resources, Ministry of Education, China University of Geosciences, Wuhan 430074, PR China
2. State
Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), #18, Fuxue Road, Changping, Beijing 102249, PR China
3. Energy
and Mineral Resources Group (EMR), Institute of Geology and Geochemistry
of Petroleum and Coal, RWTH Aachen University, Lochnerstr. 4-20, 52056 Aachen, Germany