Method for judging blocking type and main control factors of polymer injection well and experimental device

• Main Authors: WANG XINYUE, XU JINQI, HUANG ZHUANGZHUANG, ZHOU JUNHONG, ZHU YONG, ZHU SHIJIE, XU MEI, LIU CONGNING, XU JIANGEN, TANG JIACHENG
• Format: Patent
• Language: Chinese; English
• Published: 04.06.2024
• 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 provides a method for judging the blocking type and main control factors of a polymer injection well and an experimental device, and relates to the technical field of oil and gas exploitation, and the method comprises the following steps: obtaining process parameters of an actual construction process of the polymer injection well; reservoir parameters corresponding to the polymer injection well are obtained; establishing an indoor experiment device according to the process parameters and the reservoir parameters; performing water injection development simulation, polymer injection development simulation, profile control and flooding operation simulation and comprehensive operation simulation according to the process parameters and the indoor test device to obtain simulation data; and judging the blockage type and blockage main control factors of the polymer injection well by using the simulation data. The invention further provides an experimental device of the judgment method. According to the