List of Articles gas field Open Access Article Abstract Page Full-Text 1 - Designing an expert system for risk assessment in exploration & development oil and gas fields Hamidreza Vazirigohar Javad Akhlaghi Open Access Article Abstract Page Full-Text 2 - Geochemical analysis &petrophysical studies: An approach to clay minerals investigation of E member of Qom Formation, Sarajeh gas field عباس دهکار سهیلا اصلانی Open Access Article Abstract Page Full-Text 3 - The impact of microfacies and diagenesis characteristics on the reservoir quality of Asmari Formation in the Gevarzin gas field, Zagros basin, south Iran Karim Mombani Ahmad Yahyaei Open Access Article Abstract Page Full-Text 4 - Evaluation of Reservoir Quality of upper Dalan formation using Petrophysical data in one of the gas fields in southern Iran Parya Zendehdel amir karimian torghabeh Open Access Article Abstract Page Full-Text 5 - Petrography, mineralogy and clay minerals, An attempt to reservoir characterization of Shurjeh reservoir, Gonbadli Gas Field Alireza Bashari Bijhan Mostaghel