Drilling liner hanger

• Main Authors: LU FEIFEI, SUN WEIGUANG, YI HAO, ZHANG JUN, LI SHUANGGUI, YU YANG, HE YINGZHUANG, LI GUANGQIAO, ZHAI KEJUN, YANG WEIXING, LI FEI, CHEN PEILIANG, LIU XIAOMIN, ZHONG WENJIAN
• Format: Patent
• Language: Chinese; English
• Published: 28.02.2023
• 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

The utility model provides a drilling liner hanger which comprises a tubular body, a fluid circulation channel is arranged in the body, and a slip is arranged on the outer wall of the body. The slip is arranged on the body, the elastic piece is arranged between the slip and the body, the elastic piece can expand under the pushing of external force to push the slip to expand outwards, and the power element is connected to the elastic piece and the slip and can push the elastic piece. A protection part is further arranged on the outer side of the slip, and the slip can rotate relative to the protection part, so that the protection part has a first state for limiting the slip to expand outwards and a second state for allowing the slip to expand outwards. And a conversion element capable of converting linear motion into circumferential rotation is arranged between the slip and the power element, so that the power element can drive the slip to rotate relative to the protection piece. 本实用新型提供了一种尾管悬挂器，包括管状的本体，所述本体内具