Characterizing Tight Sand Gas Reservoirs Using 3D3C Seismic Data in Sulige Gas Field.pdf

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Characterizing tight sand gas reservoirs using 3D3C seismic data in Sulige gas field
Daxing Wang, Yuhua Zhao, Mengbo Zhang, Yonggang Wang, National Engineering Laboratory for
Exploration and Development of Low-Permeability Oil & Gas Fields, Exploration and Development Research
Institute of PetroChina, Changqing pany, Xinwei He*, Zhiliang Ming, Shipeng Liu, Fugro-Jason
Beijing, Ltd.


Summary wide distribution in plain. The width is about 10-30km, and
the extension length is about 150km.
The Sulige is the largest discovered gas field in China. The
reservoir is characterized by low porosity, low permeability Although the He8 sand bodies are distributed in large area,
and strong heterogeneity. Meanwhile single sand body is not all of sandstones accumulate gas. The gas reservoir
superimposed each other and posite sand bodies are within sandstone is small in scale, poor in lateral continuity,
contiguous, whereas the distribution of gas reservoirs is strong in reservoir heterogeneity, and showing isolated or
dispersed. Consequently, traditional method for sand body narrow banded distribution. So the reservoir prediction
prediction is difficult to meet the need for gas reservoir issue in Sulige area is not sandstone prediction but gas
prediction that is the one of key problems of reservoir reservoir prediction.
prediction in