Reposition of redundant personnel nipple joint

• Main Authors: ZHOU YUCANG, QIN DU, LONG ZHIPING, ZOU KUAN, CAO JIANSHAN, HE QING, LI CAN, ZHU ZHICHAO, SHEN JIANZHONG, HU JINKE, FAN HUA, LI BOYAO, WANG HONGLIANG, YIN ZHONGHUA
• Format: Patent
• Language: Chinese; English
• Published: 15.02.2019
• 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 discloses a reposition of redundant personnel nipple joint, it sets up the last external wall of outer tube that runs through under to of a plurality of follows on the outer tube side wall between upper and lower two sections drilling rods to install, along circular arrangement, to...