Experimental Study of Residual Gas Saturation at DH Gas Reservoir

doi:10.11885/j.issn.1674-5086.2013.08.29.04

Abstract

Abstract:

servoir is at the middle-later period of exploitation，calibrating and improving the recovery of the waterdriven
sandstone gas reservoir and adjusting the development plan are very important. Before this，studying the residual gas
can provide an accurate parameter for recovery calibration work. Adopting the co-current spontaneous imbibition experimental
facility we tested the residual gas saturations of the sandstone samples from DH gas reservoir. The results revealed that initial gas
saturation had an important effect on residual gas saturation，and porosity and permeability had a little influence on maximum
residual gas saturation. The experimental results could coincide with Land’s model very well，but not with the Agrawal’s
model. Based on the initial gas saturation of DH gas reservoir to the formula we calculated the residual gas saturation of DH gas
reservoir. And by using the result of residual gas saturation we analyze the countermeasure of enhancing nature gas recovery
of DH gas reservoir in the future.

Key words: r-driven gas reservoir, recovery calibration, core experiment, spontaneous imbibitions, residual gas saturation

Li Jiudi1, Hu Ke2. Experimental Study of Residual Gas Saturation at DH Gas Reservoir[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2013.08.29.04.

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