流路として機能しない空隙を導入した貯留層シミュレーションモデルによる 圧力・トレーサー濃度変化の理論的検討

研究成果: Contribution to journalArticle査読

抄録

The conventional reservoir simulation model has been extended. This extension is based on an assumption that the highly heterogeneous distribution of pores in reservoirs generates pores containing immobile fluids. The pores containing immobile fluids only allow the propagation of pressure change. The specific enthalpy and tracer concentrations in these pores are maintained at the initial values. Attaching the pores containing immobile fluids on the outside of the porous medium defined in the conventional model, we assume that the total pore volume increases by a factor of α . The changes in tracer concentrations are controlled by the porosity of the original porous medium ϕ, whereas that in pressure is controlled by α ϕ . Numerical experiments validate these dependencies of pressure and tracer concentrations. An effective procedure for matching the extended simulation model to field observations is discussed in terms of the abovementioned dependencies. A further extension is described by taking into account the thermal decay of multiple tracers.

寄稿の翻訳タイトルA theoretical study on changes in pressure and tracer concentrations taking into account pores containing immobile fluids in reservoir simulations
本文言語日本語
ページ(範囲)129-144
ページ数16
ジャーナルjournal of the geothermal research society of japan
40
2
DOI
出版ステータス出版済み - 1 1 2018
外部発表はい

All Science Journal Classification (ASJC) codes

  • 地球物理学

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