Acid distribution method and device for flow-limiting screen pipe of super-long horizontal well

• Main Authors: LIU HUIFENG, ZHOU CHUANYI, BALETA BIEKE, BAHEDAL, WANG YANFENG, YAN JUN, LIU QI, ZHOU HAIQIU, GU YIXIN, ZHANG WEI, CUI LONGLIAN
• Format: Patent
• Language: Chinese; English
• Published: 28.06.2024
• 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 discloses a flow-limiting screen pipe acid distribution method and device for a super-long horizontal well, and the method comprises the steps: dividing the super-long horizontal well into a plurality of well sections, and setting the acid consumption intensity value of each well section; the following steps are repeatedly executed until the number of the holes of each well section is determined; according to the pressure in the screen pipe of the initial well section, the acid liquor flow of the holes of the screen pipe of the initial well section is determined; according to the initial well section, the number of the holes of the initial well section is determined according to the acid liquor flow and the acid consumption intensity value of the holes of the sieving pipe; according to the initial well section, the acid liquor flow in the screen pipe, the acid liquor flow and the number of the holes of the screen pipe and the incidence relation between the acid liquor flow in the screen pipe of