FEATURES OF BURIED HILL HYDROCARBON RESERVOIRS IN CHENGDAO AREA, SHANDONG
KONG Fan xian, LIN Hui xi (Geological Science Institute of Shengli Oil Administration Bureau, China)
In recent years, the exploration of the buried hill in the Chengdao oilfield has made important progress . Several buried hill hydrocarbon reservoirs, including Lower Paleozoic, Upper Paleozoic and Mesozoic, have been discovered in this area. These hydrocarbon reservoirs consist of weathering crust, ridge fault block, buried hill and stratigraphic unconformity stratified reservoirs. After analysing the geologic structure and pool forming conditions of the buried hill, the authors come to the conclution that the Chengdao buried hill under Eogene System is a main area of oil and gas accumulation, that different structural units have different features of oil and gas distribution, and that accumulation conditions determine the oil and gas enrichment. Most of buried hill reservoirs are superposed to form multiple oil and gas pools.
【CateGory Index】： P618.13