Single Well Numerical Simulation under Complicated Conditions in Volcanic Gas Reservoir
Received date: 2011-12-27
Revised date: 2012-02-12
Online published: 2012-06-10
It is paid more attention to volcanic reservoirs as a special type of oil and gas reservoirs.The large scale gas reservoirs have been found in the deep volcanic formation in the north of Songliao basin,China.Since the volcanic gas reservoirs have the dual media of pore and fissure,the percolation process is affected by start-up pressure gradient,slippage effect,and stress-sensitive.Based on principle of matter conservation,we establish the flow mathematical model of gas-water two phases under complex conditions and write the calculation procedures behind numerical solution.And then we discuss the dynamic changes under different boundary conditions.Numerical simulation results show that the calculated results gotten in the comprehensive multi-analysis are more realistic to develop the volcanic gas reservoir than that of the start-up pressure gradient and stress sensitive.
LAI Feng-Peng, LI Chi-Ping, LI Guang-Tao, XU Jin-Jin . Single Well Numerical Simulation under Complicated Conditions in Volcanic Gas Reservoir[J]. Natural Gas Geoscience, 2012 , 23(3) : 577 -583 . DOI: 10.11764/j.issn.1672-1926.2012.03.577
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