Identification of Pore Types and Study of Poroperm Relationships Based on Logging Data in Puguang Carbonate Reservoir
Zhang Xiang
Zhang Wei
Jin Xiuju
Liu Honglei
Jiang Yiwei
Bi Jianxia
Abstract：There is no strict general mathematical relationship between the porosity and permeability of the carbonate reservoir in Changxing Formation and Feixianguan Formation in Puguang area,which results in difficulty of reservoir permeability calcu-lation.In this study,we establish a model to solve this issue.By the analysis of the logging data,conventional slices,casting slices and core physical properties in this area,it is found that the carbonate rock pore type is the main factor influencing the porosity and permeability relationship.Based on the conventional logging data,the more sensitive logging characteristics of pore structure are constructed:AC/DEN (the ratio of acoustic transit-time and density)and LLD/LLS (the ratio of deep later-al resistivity and shallow lateral resistivity)are used to identify the carbonate pore types;then the poroperm relationship model is established according to different pore types to calculate the reservoir permeability in this area .The site data processing re-sults show that the model calculated permeability is in good agreement with the core analysis permeability,also the law among wells is consistent,and the reservoir porosity and permeability model that based on the pore structure can well determine the reservoir permeability.
Keywords：carbonateswell log characteristicsporosity and permeability relationshippore typepermeabilitygeophysics
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 2119-2126 )