Efficient discharge medium-soft rock diamond composite blade bit

• Main Authors: XICHANG XU, GUANXI ZHAO, DONG LI
• Format: Patent
• Language: English
• Published: 12.04.2006
• 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

An efficient discharge medium-soft rock diamond composite blade bit is composed of a drilling bit steel body, a diamond composite blade, a centre hole, a water tank and a water tank pore. The drilling bit steel body is the main component. The top end of the drilling bit steel body is provided with the diamond composite blade with the tilting mode. The diamond composite blade can be divided into three groups, a tilting water tank with the same rotating direction of the drilling bit is arranged between the diamond composite blades. The center of the drilling bit steel body is provided with the centre hole. The corresponding position of the water tank is provided with a big chamfer angle. The rock powder is cut down in the drilling process of the drilling bit and can be discharged upward along the rotating direction of the drilling bit and along the arc shaped water tank without being obstructed when arriving at the big chamfer angle, therefore the balling phenomenon can be avoided. The efficient discharge medium-soft rock diamond composite blade bit of the utility model has simple integrated structure and easy processing, and is especially suitable to the drilling of the medium-soft rock; the efficient discharge medium-soft rock diamond composite blade bit has high efficiency, fast drilling speed and low cost, and can widely applied to the drilling to the soft rock of coal, oilfield and all kinds of mineral resources under the well.