Underground jam releasing structure and underground jam releasing method

• Main Authors: JI GONGMING, DU XIAOXIA, YANG SHUKUN, ZHAO GUANGYUAN, GUO HONGFENG, LI XIANG, SUN XIKANG
• Format: Patent
• Language: Chinese; English
• Published: 13.07.2021
• 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 an underground jam releasing structure and an underground jam releasing method. The underground jam releasing structure comprises a tubular column base body, an adjusting valve assembly and a separating device; a first channel and a second channel are arranged in the tubular column base body; a first opening and a second opening are further formed in the tubular column base body; fluid enters the second channel through the first opening, the first channel and the second opening in sequence; the adjusting valve assembly comprises an adjusting valve; the adjusting valve comprises a valve body and a lower sealing body arranged on the lower portion of the valve body; the lower sealing body is arranged to stretch into the first channel and can move in the first channel so as to close or open the first channel; the separating device is arranged between the valve body and the lower sealing body; and the separating device acts to enable the lower sealing body to fall off from the valve body. A