Abstract：The Donghe Sandstone of Carboniferous in the Tarim Basin were mainly developed in the shoreline sedimentary system and the forced regressive systems tract. The sedimentary sandbodies show a set of downstepping prograding wedges. During the deposition of Donghe Sandstone, the shoreline environment was dominated by high-energy sandy and pebbly shore deposits and few muddy shore sediments. The main controlling factors of potential reservoirs in the Donghe Sandstone are shifting of shoreline and facies distribution. Oil and gas migration conditions and distribution of high-quality reservoirs determine the potential belts for oil exploration. The prediction of oil reservoir distribution is based on the distribution pattern of the forced regressive systems tract wedges with the shifting of the shoreline. On the basis of sedimentary sequence analysis and reservoir evaluation combined with the current petroleum exploration status and structural traps analysis, the authors suggested three potential belts for oil exploration in the Manxi area of the Tarim Basin. The subsequent drilling confirmed that significant discoveries could be made according to this idea.
Wu Yinye,Sun Longde,Gu Jiayu et al. Sedimentary sequence analysis and reservoir evaluation of the Donghe Sandstone of Carboniferous in Manxi area of Tarim Basin[J]. JOPC, 2008, 10(1): 13-24.
