Sedimentary facies and favorable area of hydrocarbon accumulation of the Paleogene Shahejie Formation in northern Lixian Slope of Raoyang Sag in central Hebei Province
Luo CaiZhen1,2, Tian Shicheng1, Li Ruimin3
1 School of Energy Resources， China University of Geosciences(Beijing)， Beijing 100083 2 Research Institute of Petroleum Exploration & Development， PetroChina， Beijing 100083 3 The Second Cutting Logging Company of CNPC Bohai Drilling Engineering Company， Renqiu 062552， Hebei
Abstract：Through depositional environment， sedimentary characteristics， single well sedimentary facies and seismic facies analysis， it is concluded that fan-delta， braided fluvial， braided fluvial-delta depositional systems were developed during the deposition of the lower submember of the Member 1，the Member 2 and the upper submember of the Member 3 of the Paleogene Shahejie Formation in Lixian Slope. The main reservoirs include the semi-circular delta front facies of the lower submember of the Member 1 of the Paleogene Shahejie Formation， the main parts of the fluvial distributary channel of the Member 2 of the Paleogene Shahejie Formation， the distal parts of the distributary channel facies of the upper submember of the Member 3 of the Paleogene Shahejie Formation. They have good reservoir properties and are favorable for hydrocarbon accumulations. With the favorable conditions for formation of oil and gas accumulations， they are the favorable targets for further exploration.
Luo CaiZhen,Tian Shicheng,Li Ruimin. Sedimentary facies and favorable area of hydrocarbon accumulation of the Paleogene Shahejie Formation in northern Lixian Slope of Raoyang Sag in central Hebei Province[J]. JOPC, 2009, 11(6): 697-701.
