20220425 D customer provided a case, using 30 pieces of 1613BIM-1 to make an 12.2-inch 6-blade drill bit, in Xuyong County to drill Leikoupo-Jialing River-Feixianguan formation, the footage was more than 700 meters, the speed was normal, and the well stopped due to leakage drill , check the drill bit and find normal wear on the cutters.