Abstract
Mineral deposit precipitation is encountered in oil and gas production and transportation causing obstruction of technological operations. It causes damage to hydrocarbon-producing formations including conventional and unconventional petroleum reservoirs. This study outlines approach for magnetic analysis some of the dominant varieties of petroleum mineral deposits (scales). The results show that the petroleum scales have distinct magnetic differences. They also establish three magnetic classes: diamagnetic, paramagnetic and ferrimagnetic scales. The majority of the hydrocarbon deposits containing Ca, Sr, Ba cations are diamagnetic. Therefore, magnetic susceptibility can be used to rapidly distinguish between different reservoir scales.