Drilling liner hanger with mechanical and hydraulic releasing modes

• Main Authors: ZHANG JIE, WANG SHIJIE, DU CHUNCHAO, MA GUORUI, ZHAO HAIYANG, WAN XIAOYONG, SU PENG, LI LINTAO, ZHAI KEJUN, LI WEILIANG, HUANG LIANG
• Format: Patent
• Language: Chinese; English
• Published: 12.07.2022
• 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 drilling liner hanger with the mechanical and hydraulic releasing modes comprises a releasing connector, and an upper connector connected with an upper pipe column is arranged at the upper end of the releasing connector; the hanger body is arranged below the release sub, and a lower sub is arranged at the upper end of the hanger body; the connecting piece is arranged at the lower end of the releasing sub; the connecting piece is detachably connected with the lower sub; the connecting piece is configured to be capable of being separated from the lower connector in a mechanical releasing mode and a hydraulic releasing mode, and releasing is achieved. The hydraulic releasing device has a mechanical releasing mode and a hydraulic releasing mode at the same time, and the releasing success rate can be greatly increased. 本发明提出了一种具有机械和液压丢手方式的尾管悬挂器，包括丢手接头，所述丢手接头的上端设置有连接上部管柱的上接头；设置在所述丢手接头的下方的悬挂器体，所述悬挂器体的上端设置有下接头；以及设置在所述丢手接头的下端的连接件，所述连接件可拆卸式连接所述下接头；其中，所述连接件构造成能够通过机械丢手方式和液压丢手方式与所述下接头分离，实现丢手。本发明同时具备机械和液压两种丢手方式，能大幅度提高丢