Device for reaming while drilling

• Main Authors: PENG SONG, WANG JUN, HE KUN, LUO YONG, HOU FUXIANG, WU QIANLI, XU BINGGUI, ZHANG YANPING, FENG LAI, LIANG GUOHONG, CAO CHUAN
• Format: Patent
• Language: Chinese; English
• Published: 09.04.2024
• 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 invention relates to the technical field of reamer, in particular to a reaming-while-drilling device. A telescopic groove is formed in the pipe wall of the mounting pipe in the circumferential direction; reaming cutters in one-to-one correspondence with the positions of the telescopic grooves are mounted in the mounting pipe; one end of the reaming cutter is rotatably connected with the mounting pipe; a lead screw is arranged in the mounting pipe in the axial direction of the mounting pipe, a movable frame is fixed to the lead screw and arranged in the radial direction of the mounting pipe, and the end of the movable frame abuts against the reaming cutter. The screw rod rotates to drive the moving frame to slide, and the reaming cutter can rotate on the vertical plane along with sliding of the moving frame to penetrate through the telescopic groove to extend out of the mounting pipe and be positioned. The screw rod and the movable frame are adopted to control the reaming cutter, so that the reaming cutter