Thermal recovery construction method

• Main Authors: SUN HUANQUAN, MA TAO, WANG GUANGFU, JIANG YANBO, HU BO, WANG JIANYONG, SUN JIANFANG, YANG YUANLIANG, TANG LEI, WANG HAITAO, LUN ZENGMIN, LYU CHENGYUAN
• Format: Patent
• Language: Chinese; English
• Published: 28.12.2021
• 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 thermal recovery construction method. The thermal recovery construction method comprises the following steps that design parameters of current thermal recovery construction are determined according to geological data and oil reservoir characteristic data of an oil reservoir area to be transformed; coal water slurry required by the current thermal recovery construction is prepared according to the design parameters; according to the injection mode in the design parameters, the coal water slurry is injected into the target reservoir through an injection well, and a combustion supporting substance is injected according to the total injection amount of the coal water slurry; and heat generated by an underground heating device is utilized to initiate spontaneous combustion of the coal water slurry, and heat energy and gas generated after combustion are utilized to perform displacement regulation and control on the reservoir oil reservoir. Clean utilization of coal is facilitated, the ther