College of Earth Science and Engineering;
Shandong University of Science and Technology;
Qingdao 266590;
China;
Laboratory for Marine Mineral Resources;
Qingdao National Laboratory for Marine Science and Technology;
Qingdao 266237;
China;
The Fourth Gas Production Plant;
Changqing Oilfield Branch;
PetroChina;
Xi’an 710021;
China;
Management Centre of Oil and Gas Exploration;
Shengli Oilfield;
SINOPEC;
Dongying 257000;
China;
Gaoyou Depression; constant-rate mercury injection; porosity anomaly; diagenesis; sedimentary microfacies;