FRACTURING METHOD WITH SYNERGISTIC EFFECTS OF ENERGY ENHANCEMENT, OIL DISPLACEMENT, HUFF AND PUFF, IMBIBITION, AND DISPLACEMENT

• Main Authors: SONG, Yongtao, LI, Ping, SUN, Min, SHU, Wenming, WU, Aibin, YAN, Fengping, FAN, Pingtian, GUAN, Baolin, YU, Weichu, LIU, Yuetian, WANG, Yongdong
• Format: Patent
• Language: English
• Published: 22.06.2023
• 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

Disclosed is a fracturing method with synergistic effects of energy enhancement, oil displacement, huff and puff, imbibition, and displacement, comprising the following steps: selecting a well that has never been fracted as a fracturing well; dividing the target layer into several fracturing intervals; performing perforating operations on each fracturing interval of the fracturing well; injecting pore cleaning fluid into the fracturing well to perform pore cleaning and acidizing pretreatment on each cluster perforation; designing fracturing construction parameters; alternately injecting slick water fracturing fluid and oil-displacement slick water fracturing fluid into each of the fracturing layers. The beneficial effects of this disclosure are: the construction method of slick water fracturing fluid with high pump rate and large displacement can form a more complex fracture network structure, tap the production potential of the target reservoir, and further improve the stimulation effect of the reservoir.