Liuzan Oilfield , located at the boundary of Luannan County and Tanghai County of Hebei Province , frontal zone of Yanshan fold belt and eastern of Nanpu Sag of Bohaiwan Basin , is one of the most important oil fields of JiDong Oilfield . Influenced by Baigezhuang Fault and inclined palaeotopography , the stratigraphy of Member 3 of Shahejie Formation of Paleogene is characterized with low sorting , low maturity and complicated lithofacies , and as a result fan delta deposition model is built . By method of stratigraphic sequence , stratigraphic boundaries (unconformity surface and lake flooding surface ) and sedimentary cycle of Member 3 of Shahejie Formation in Liuzan Oilfield are recognized with seismic and logging data , and high resolution sequence frame is made , i.e , 4 parasequence sets and 12 parasequences . The paper analyses parasequences’ superposition style , divides parasequence sets into progradational sequence and retrograding sequence and determines the location of excellent reservoirs in parasequences and parasequence sets . On the basis of palaeotopography , palaeoclimate , palaeecology and sedimentary facies analysis , Lithofacies palaeogeography of Member 3 of Shahejie Formation in Liuzan Oilfield is renewed with isopath map of sandstone . For Member 3 of Shahejie Formation in Liuzan Oilfield , the deposition environment is fan delta front and branch channel is the main sandstone microfacies. Sandstone distributes along north-east direction ,which is identical with that of palaeoprovenance .
About author: Mu Lihua , born in 1962 , graduated from Department of Exploration of Daqing Petroleum Institute. Now he is a senior engineer in Jidong Oilfield and a candidate for doctor degree in University of Petroleum , and is engaged in petroleum geology .
Cite this article:
. Sequence Stratigraphic and Lithofacies Palaeogeography of Shahejie Formation of Paleogene in Liuzan Oilfield ,Eastern Hebei Province[J]. JOURNAL OF PALAEOGEOGRAPHY, 2003, 5(3): 304-315.
. Sequence Stratigraphic and Lithofacies Palaeogeography of Shahejie Formation of Paleogene in Liuzan Oilfield ,Eastern Hebei Province[J]. JOPC, 2003, 5(3): 304-315.