نتایج جستجو برای: vugs

تعداد نتایج: 75  

2012
Bicheng Yan Yuhe Wang John E. Killough

The state of the art of modeling fluid flow in shale reservoirs is dominated by dual porosity models which divide the reservoirs into matrix blocks that significantly contribute to fluid storage and fracture networks which principally control flow capacity. However, recent extensive microscopic studies reveal that there exist massive microand nanopore systems in shale matrices. Because of this,...

2009
Yu-Shu Wu Kenzi Karasaki

A physically based fault conceptual model is presented for modeling multiphase flow and transport processes in fractured rock of fault zones. In particular, we discuss a general mathematical framework model for dealing with fracture-matrix interactions, which is applicable to both continuum and discrete fracture conceptualization in fault zones. In this conceptual model, faults or fault zones o...

2006
M. A. Knackstedt C. H. Arns A. Ghous A. Sakellariou T. J. Senden A. P. Sheppard R. M. Sok V. Nguyen W. V. Pinczewski

The ability of a rock to store and flow fluids is dependent upon the pore volume, pore geometry and its connectivity. Carbonate rocks are inherently heterogeneous having been laid down in a range of depositional environments and having undergone significant diagenesis. They are particularly difficult to characterise as the pore sizes can vary over orders of magnitudes and connectivity of pores ...

2011
J. Bell A. Boateng O. Olawale D. Roberts

The Upper McMurray Formation of Canada, more specifically samples from the estuarine depositional settings taken in Athabasca, displayed high porosity based on an initial study. This work involved thin section imaging and micro CT-scanning in determining reservoir characteristics. The results from the thin section analysis for the porosity estimation showed that the estimated porosity lay betwe...

2002
BRADLEY L. JOLLIFF LARRY A. HASKIN

We present compositions, including REEs determined by ion microprobe, of apatite and whitlockite in lunar rock assemblages rich in incompatible trace elements. Total concentrations of REE oxides in whitlockites range from 9-13 wt%, and those in apatites range from 0.15 to 1 wt%. Ratios of REE concentrations in whitlockite to those in coexisting apatite range from 10 to 60. The distribution of M...

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