Variation of Φ (logMi,L) in relation with geochemistry of oil-field waters and its applications

Samples of oil-field waters taken from more than fifty oil-fields in ten major oil-gasbearing basins of China have been studied in special reference to various bond parameters. It is found that the concentrations of Na⁺, Ca²⁺ and Mg²⁺ (ppm) show a logarithmic correlation with the bond parameters. This correlation is treated with the quantitative formula logMi=a+bL for Φ (logMi, L). Additionally, the relations between the variation of Φ (logMi, L) and the origin of oil-field waters and between that and the nature of crude oil are explored. For the convenience of solution of the formula, nomogaphy is recommended in this paper.