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Global Geology 2012, 15(1) 53-57 DOI:
ISSN: 1673-9736 CN: 22-1371/P |
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Study on water saturation computation models in complex pore volcanic reservoir |
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BIAN Huiyuan1, SHI Danhong2, HAN Shuang3, PAN Baozhi1and ZHANG Lihua1 |
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1�� College of Geo-Exploration Science and Technology��Jilin University��Changchun 130026��China; 2�� No�� 2 Well Logging Company��Daqing Drilling �� Exploration Engineering Corp�� ��Songyuan 138000��Jilin��China; 3�� Research Institute of Exploration and Development��Northeast Oil �� Gas Branch��SINOPEC��Changchun 130026��China |
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Abstract��
Determination of water saturation is important for reservoir evaluation�� When complex pore structures such as fracture and cavity are present in reservoir��Archie equation is no longer suitable�� According to different models of pore structure division��the authors studied water saturation computation models�� The results show that dual porosity system is divided into four models�� The first model is based on dual laterolog��the second is Dual Porosity ��the third is Dual Porosity��and the last one is based on the conductive pore�� Besides��the triple porosity system is triple porosity model�� Compute water saturation was using all the above five models in volcanic reservoir in Songnan gas field�� The triple porosity system is the most suitable model for water saturation computation in complex pore structure volcanic reservoir�� |
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Keywords��
water saturation
triple porosity model
dual porosity model
complex pore structure
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