CONTAMINATION OF WATER SOURCES BY OIL PATCH AND CHALLENGES FACED FOR REUSING PRODUCED WATER IN PETROLEUM INDUSTRY IN AZERBAIJAN Ayshan Gurbanova ................................................................................................. 342 DESCRIPTION OF ENVIRONMENTAL CONCERN WHILE DRILLING OIL AND GAS WELLS Vusala Guluzada ..................................................................................................... 344 CUTTINGS REINJECTION AS AN EFFECTIVE METHOD OF THE DRILLING WASTE MANAGEMENT Vusala Guluzada ..................................................................................................... 346 ИССЛЕДОВАНИЕ ВЛИЯНИЯ СОПОЛИМЕРА ВИНИЛХЛОРИДА И ВИНИЛАЦЕТАТА НА СВОЙСТВА ИЗОПРЕНОВОГО КАУЧУКА (СКИ-3)