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Information Journal Paper

Title

Effect of sequential pressure on petrophysical properties of carbonate reservoir rocks

Pages

  19-31

Abstract

 Today, oil industry significantly relies on the precise determination of rock reservoir properties, which reduces the costs and risks of production planning. The reservoir rock always is compacted by pressure drop of the reservoir, which rises effective stress, reservoir compaction and alterations of reservoir properties. As these pressure variations can considerably affect petrophysical properties, in this study, several Carbonate reservoir rock samples with different fabric and Porosity type (according to CT scan and Archie classification analysis) subjected to cyclic and short-term loading from 600 to 6000 psi. Their petrophysical and compressive properties including pore volume, Permeability and compressibility were measured using CMS-300 apparatus. Moreover, structural analysis and heterogeneity of core samples were analyzed by CT scan images. By performing this study, it will be possible to identify the value of the hysteresis effect on the reservoir rock samples as a result of increasing and decreasing of the pressure during Cyclic loading. The obtained results show that, pore volume and Permeability are both decreased due to loading, whereas reduction of the Permeability is several times than the pore volume ones. Moreover, this reduction of pore volume is less severe in vuggy porous samples that shows the effect of heterogeneity and Porosity type on hysteresis. Also, the results obtained from the behavior of the reservoir rock under various pressure conditions can provide a suitable design for gas injection studies to enhance oil recovery and also natural gas storage.

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    APA: Copy

    Salimi Delshad, Y., MORADZADEH, A., KAZEMZADEH, E., & MAJDI, A.. (2018). Effect of sequential pressure on petrophysical properties of carbonate reservoir rocks. IRANIAN JOURNAL OF PETROLEUM GEOLOGY, 8(15 ), 19-31. SID. https://sid.ir/paper/408641/en

    Vancouver: Copy

    Salimi Delshad Y., MORADZADEH A., KAZEMZADEH E., MAJDI A.. Effect of sequential pressure on petrophysical properties of carbonate reservoir rocks. IRANIAN JOURNAL OF PETROLEUM GEOLOGY[Internet]. 2018;8(15 ):19-31. Available from: https://sid.ir/paper/408641/en

    IEEE: Copy

    Y. Salimi Delshad, A. MORADZADEH, E. KAZEMZADEH, and A. MAJDI, “Effect of sequential pressure on petrophysical properties of carbonate reservoir rocks,” IRANIAN JOURNAL OF PETROLEUM GEOLOGY, vol. 8, no. 15 , pp. 19–31, 2018, [Online]. Available: https://sid.ir/paper/408641/en

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