Thickened oil thermal recovery invalid steam injection layer identification method and device and storage medium

• Main Authors: LI MAN, YANG XINBIAO, LI SIQI, YAO RUI, CUI JIE, GUO ZINAN, WANG XIQIONG, WANG KAI, SHI HAITAO, FAN ZUOCHUN, CUI LIJING, JI JING, XU HUI, XIA BO, LIN ZHONGKUO, REN TIANXIAO, BI JUNWEI, YANG LIU
• Format: Patent
• Language: Chinese; English
• Published: 19.12.2023
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The invention discloses a heavy oil thermal recovery invalid steam injection layer identification method and device and a storage medium. The method comprises the steps that the rock mineral composition change rate is obtained; obtaining the oil displacement efficiency; acquiring a permeability change rate; obtaining residual reserve abundance; obtaining normalization processing values of the rock mineral composition change rate, the oil displacement efficiency, the permeability change rate and the residual reserve abundance; obtaining influence weights of the rock mineral composition change rate, the oil displacement efficiency, the permeability change rate and the residual reserve abundance; and calculating a comprehensive discrimination parameter of the steam injection invalid cycle according to the normalized processing value and the influence weight. According to the method, the invalid steam injection layer of the heavy oil thermal recovery can be comprehensively and quantitatively judged from multiple