Anti-balling centralizer

• Main Authors: LIU PINGQUAN, ZHU GAOLEI, GAO WEI, CHEN ZHEN, ZHANG QIUYANG, HUO XIN, SUN WEIWEI, WANG XIGUI, KONG QINGDONG, LIU MENGLING, HUANG HUIJIAN, YU MENG, ZHANG XINRAN, ZHONG FULIN, YANG FALEI, WEI XIANG, SHI LIANHAI, LIANG DAPENG, LI QING, ZHUANG CHUNCAI, BAI DONGQING, HE CHANJUAN
• Format: Patent
• Language: Chinese; English
• Published: 04.04.2023
• 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 embodiment provides an anti-balling centralizer which is used for controlling the drilling direction of a drill rod in a borehole, at least three first centralizing blocks and at least three second centralizing blocks are longitudinally distributed on the outer wall of a cylindrical main body of the centralizer, and therefore balling is preliminarily prevented from being formed between the centralizer and the inner wall of the well. The gaps between the at least three first centralizing blocks and the at least three second centralizing blocks which are arranged in a staggered mode form a flow guide groove with two wide ends and a narrow middle on the outer wall of the main body, when drilling fluid with drilling cuttings upwards returns along a shaft and passes through the flow guide groove, the drilling cuttings can be accelerated in the flow guide groove, the drilling cuttings in a well are dredged, and the drilling efficiency is improved. Therefore, a mud drum is further prevented from being formed bet