Method for identifying low-resistance hydrocarbon reservoir of complex fault block oil and gas field

• Main Authors: ZHANG XINHUI, LIU HONGLEI, DONG YI, LIU GAOHUA, WANG JINGJING, ZHANG WEIXIN, ZHANG CHONGGANG, LI KUNYAO, JIANG WENDA, LIU XUEXUE, LI ZHENGWEI, JIANG GUANG
• Format: Patent
• Language: Chinese; English
• Published: 28.01.2025
• Subjects: DETECTING MASSES OR OBJECTS; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; MEASURING; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PHYSICS; TESTING

The invention relates to an identification method for a low-resistance hydrocarbon reservoir of a complex fault block oil and gas field, and belongs to the technical field of oil exploitation. The method comprises the following steps that logging is conducted through core scales, a reservoir parameter interpretation model of the shale content, the porosity, the permeability and the saturation is established, and reservoir parameter calculation is completed through the interpretation model; the reservoir physical property lower limit of the research block is determined through a test method and an empirical statistical method; on the basis of four-relation research, an interpretation chart and an interpretation standard are respectively established; on the basis of the Indonesia formula, a single-well water layer resistivity curve is calculated, a water layer resistivity comparison method is provided through numerical comparison of the water layer resistivity curve and a logging resistivity curve, and effectiv