A numerical study of pore‐fluid, thermal and mass flow in fluid‐saturated porous rock basins
A numerical study of pore‐fluid, thermal and mass flow in fluid‐saturated porous rock basins
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DOI：
10.1108/02644409910257467
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发表时间：
1999
影响因子：
1.6
通讯作者：
Chong-bin Zhao;B. Hobbs;K. Baxter;H. Mühlhaus;A. Ord
中科院分区：
文献类型：
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作者：
Chong-bin Zhao;B. Hobbs;K. Baxter;H. Mühlhaus;A. Ord
我们提出了一种研究流体饱和多孔岩盆地中对流孔隙流体、热流和质量流的数值方法。特别地，我们研究了温度梯度驱动的对流孔隙流体流动和油气输运在澳大利亚西北陆架盆地的赋存和分布模式。相关数值结果表明：(1)结合渐进渐近方法的有限元方法是处理流体饱和热液盆地中温度梯度驱动的孔隙流体流动和质量输运的有效工具；(2)对流孔隙流体流动通常集中在渗透性更强的层中，特别是当层厚到足以容纳适当的对流细胞时；(3)地层大错位对西北陆架盆地对流孔隙流体、热流和油气输运的分布模式有显著影响；(4)由于对流孔流体细胞的形成，油气集中高度局限于盆地内两条主要断裂所围合的范围内。
We present a numerical methodology for the study of convective pore‐fluid, thermal and mass flow in fluid‐saturated porous rock basins. In particular, we investigate the occurrence and distribution pattern of temperature gradient driven convective pore‐fluid flow and hydrocarbon transport in the Australian North West Shelf basin. The related numerical results have demonstrated that: (1) The finite element method combined with the progressive asymptotic approach procedure is a useful tool for dealing with temperature gradient driven pore‐fluid flow and mass transport in fluid‐saturated hydrothermal basins; (2) Convective pore‐fluid flow generally becomes focused in more permeable layers, especially when the layers are thick enough to accommodate the appropriate convective cells; (3) Large dislocation of strata has a significant influence on the distribution patterns of convective pore‐fluid flow, thermal flow and hydrocarbon transport in the North West Shelf basin; (4) As a direct consequence of the formation of convective pore‐fluid cells, the hydrocarbon concentration is highly localized in the range bounded by two major faults in the basin.