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1. New Gas Drive Analysis Method | |||
Liu Haohan | |||
Energy Science and Technology 23 February 2011 | |||
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Abstract:For gas reservoir driving, the main gas driving force , the dynamic changes of gas reservoir and the interreaction between gas reservoir and its surrounding water area in each development phase should be considered. The dynamic change of gas reservoir means the changes of gas reservoir pressure and PORV of gas storage; By introducing the least-square method to the material balance equation of gas reservoir and considering the liquid expansion and decreased pore volume caused by the decreased pressure and combining the liquid state equation and the elastic medium state equation , a new method to analyze the gas reservoir driving has been established, and relative new calculating formula of degree of reserve recovery, effective compressibility, relative pressure coefficient, cumulative gas production and geologic reserve of gas reservoir have been produced; This new method lays a theoretical foundation for the traditional formation pressure method, the law of water cutting volume factor and the Havlena-Odeh method, and it can be applied to the driving analysis of normal gas reservoir, abnormally pressured gas reservoir and condensate gas reservoir; By putting this new method into the Anderson 'L' gas reservoir: An abnormally pressured gas reservoir in south Texas of America, we get good analyzing results. | |||
TO cite this article:Liu Haohan. New Gas Drive Analysis Method[OL].[23 February 2011] http://en.paper.edu.cn/en_releasepaper/content/4411942 |
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