Characterization of Carbonate Porosity Using Petrophysical Properties and Image Analysis

Funk, J.J.; Choinski, M.C.; Saxman, B.B.; Callender, C.A.

doi:10.2523/17943-ms

Cited by 1 publication

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“…Authors [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] have proposed that the scatter in between permeability and gas slip factor might be the result of experimental error. In carbonate rock samples having high slippage factor values and high permeability associated with smaller pore radius has also reported by [27]. High slippage values might be existence of pores with greater than average pore size in those samples.…”

Section: Fig 8 Plot Shows the Fitting Curves Of The Gas Permeabilitsupporting

confidence: 64%

Experimental Study on Gas Slippage of Tight Gas Sands in Kirthar Fold Belt Sindh, Pakistan

Mahesar

Shar

Memon

et al. 2017

Mehran Univ. res. j. eng. technol.

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The laboratory experiments on samples from Kirthar fold belt of lower Indus basin Sindh Pakistan were carried out to investigate the effect of gas slippage under varying conditions of pore pressures and overburden stress. The samples were dried in an oven at temperature of 60 0 C and were randomly selected for measurement of permeability and porosity. Permeability was measured using nitrogen gas, while the porosity measurements were made using helium gas expansion porosimeter. The bulk volume was determined by measuring sample diameter and length with caliper. The permeability results suggest that gas slippage increases as if low pore pressures are used, which leads to higher measured permeability than intrinsic permeability of samples. An attempt was also made to estimate the permeability using existing correlations and found that there is large scatter in predicted permeability and measured data. This large amount of scatter in the predicted permeability values concludes that unless absolutely necessary, such correlations should not be used where accurate absolute permeability values are needed. Moreover, the permeability and porosity were plotted together to develop a relation between two properties; the power law fitting of the data well explains the relation between permeability and effective porosity.

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Section: Fig 8 Plot Shows the Fitting Curves Of The Gas Permeabilitsupporting

confidence: 64%

Experimental Study on Gas Slippage of Tight Gas Sands in Kirthar Fold Belt Sindh, Pakistan

Mahesar

Shar

Memon

et al. 2017

Mehran Univ. res. j. eng. technol.

View full text Add to dashboard Cite

show abstract

Characterization of Carbonate Porosity Using Petrophysical Properties and Image Analysis

Cited by 1 publication

References 0 publications

Experimental Study on Gas Slippage of Tight Gas Sands in Kirthar Fold Belt Sindh, Pakistan

Experimental Study on Gas Slippage of Tight Gas Sands in Kirthar Fold Belt Sindh, Pakistan

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