Integrated drill bit for injecting and sweeping cement plug in oil field well drilling and workover operation

• Main Authors: LI YONGGANG, ZHUANG JUJIN, CHENG LU, TIAN WEI, ZHANG HAIBO, SUN FUJIN
• Format: Patent
• Language: Chinese; English
• Published: 10.11.2023
• 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 relates to an oil field well drilling and workover operation cement injection and sweeping plug integrated drill bit which comprises a tubular body, an upper connector is arranged on the upper portion of the tubular body, a drill bit body is arranged on the lower portion of the tubular body, the bottom end of the drill bit body is in an arc shape, the section of the drill bit body is in a linear shape, and the upper end of the drill bit body is designed to be a chamfer slope. Hard alloy materials are laid at the bottom end, the side face and the chamfer inclined face of the drill bit body. The integrated drill bit for injecting and sweeping the cement plug in the oil field well drilling and workover operation meets the requirements of squeezing and injecting the cement plug and drilling and sweeping the cement plug, can complete the operations of squeezing and injecting the cement plug and drilling and sweeping the cement plug in one step, is good in using effect, effectively shortens the co