Integrated Petrophysical Parameters and Petrographic Analysis Characterizing Khartam Reservoirs of the Permo-Triassic Khuff Formation, Saudi Arabia

Journal Article

Al-Khidir, Khalid Elyas . 2014

• رابط المنشور على الويب: http://www.ijera.com
• المجلة \ الصحيفة: International Journal of engineering Research and Applications
• رقم العدد: 7
• رقم الإصدار السنوي: 4
• الصفحات: 195:203

مستخلص المنشور

Measured porosity and permeability were integrated with thin section petrography and pertophysical attributes derived from mercury intrusion to form an essential outline for Khartam reservoirs of the Permo-Triassic Khuff Formation. Porosity-permeability distribution of thirty two outcrop core samples delineates an existence of five demonstrative pertophysical facies. Thin section petrography reveals dissolution as principal diagenetic feature controlling fluid flow in Khartam reservoirs. Based on dissolution and poro – perm distribution it was found that, better khartam reservoirs quality confined to dolostone facies type (QK1) and tidat flat oolite grainstone facies (QK27) with higher degree of dissolution owing to cement removal. Further supports to dissolution statement come from physical attributes acquired from mercury intrusion including pore size distribution tail and total cumulative intrusion volume. Correspondingly facies with higher pore size distribution tail and higher total cumulative intrusion volume restricted to dolostone facies type (QK1) and oolite grainstone facies type (QK27).
Keywords: Khartam reservoirs, Khuff Formation, dissolution, cumulative intrusion volume, pore size distribution tail