Non-well-killing well completion operation process method

• Main Authors: ZHANG LONG, TIAN SHENGMIN, WANG LIN, ZHANG SHILIN, LI NAN, YANG QIUMEI, ZOU PENG, LIU LIN, JIANG YONG, HUANG QI, WANG FANGXIANG, WANG WENSHAN
• Format: Patent
• Language: Chinese; English
• Published: 26.03.2021
• 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 non-well-killing well completion operation process method, and belongs to the technical field of oil and gas well downhole operation. The non-well-killing well completion operation process method comprises the several steps of shaft preparation, pressure measurement, shaft temporary closing, sealing performance verification, pump descending, oil and gas channel opening and the like, specifically, a coiled tubing works under pressure to complete shaft preparation work, and static pressure measurement provides a basis for determination of a well bottom temporary closingplug opening mode and opening pressure; a non-well-killing operation tool string is tripped in by the coiled tubing under pressure, and a shaft is temporarily closed after a well bottom temporary closing plug is set; and after the shaft sealing performance is verified, a conventional oil well pump well completion process is adopted for well completion; an oil-gas flow channel is opened in a ground pressing mode or an in-