Petroleum Potential Prediction of the Lile Basin in Nansha
SUN Long-tao
SUN Zhen
ZHAN Wen-huan
LIU Hai-ling
FAN Hao
Abstract：Lile basin is a hot research spot in Nansha area. We probe into the petroleum potential of Lile basin based on geolog-ical and geophysical analysis of seismic profiles, wells and dredging data. All necessary elements for a hydrocarbon accumula-tion are analyzed in the basin. We suggest that the Mesozoic to early Cenozoic sediments are the major source rock. Potential reservoirs include the late Oligocene reefs and Mesozoic aerated layer. The principal play-types recognized in the basin are the Late Oligocene to Early Miocene reefs and erosional Mesozoic faulted blocks. Long term active faults connect the Mesozoic source rock and shallow layer play, so the faults are major transport channel and control the spatial distribution of hydrocarbon reservoir. Similar to the Dongsha movement in the northern of South China Sea, Late Miocene tectonic event was good for hy-drocarbon migration. The attenuated tectonic movement thereafter benefited the hydrocarbon accumulation.
Keywords：Lile basinfaultMesozoichydrocarbon accumulationpetroleum potentialpetroleum geology.
Publication Date：2010-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：9( 137-145 )