Hydraulic anchoring tubing anchor and anchoring method thereof

• Main Authors: PENG GUOWEI, SHI QIONG, SONG HUIHUI, SHIN HEUNGOL, LIU YANXIA, GUO LINYUAN, ZHANG JIAN, GU GUOLI, ZHU JUNMENG, HE QIQIANG
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2024
• 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 hydraulic anchoring tubing anchor and an anchoring method thereof. The hydraulic anchoring tubing anchor comprises a central pipe, an upper cone, a slip, a lower cone, an upper sheath and a setting rubber sleeve, the two ends of the central pipe are connected with the upper connector and the lower connector respectively, the outer side of the central pipe is sequentially sleeved with the upper cone, the slips, the lower cone, the setting rubber barrel, the piston sleeve and the piston from the upper connector to the lower connector, the opposite ends of the upper cone and the lower cone are conical, and the upper cone and the lower cone are sleeved with the slip sleeves. An annular cavity is formed among the slip sleeve, the upper cone and the lower cone, a plate spring is arranged in the annular cavity, the slip and the plate spring are limited in the annular cavity, an overflowing hole is formed in the position, between the piston and the lower connector, of the center pipe, and th