Combined type well drilling impactor based on hydraulic drive

• Main Authors: QI DONG, QIAO JUNQI, QU YUNPENG
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2024
• 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 utility model relates to a combined type well drilling impactor based on hydraulic drive, and belongs to the field of well drilling speed improvement. The combined type well drilling impactor based on hydraulic drive is composed of an upper connector, a flow dividing sleeve, an end cover, an upper anvil body, an impact hammer, a shell, a center shaft, a throttling nozzle, a flow distribution shaft body, an upper limiting block, a lower limiting block, upper impact teeth, lower impact teeth, a lower impact tooth connector, a lower connector and the like. Along with the continuous change of the relative positions of the flow distribution shaft main body and the impact hammer, the flow distribution shaft main body and the impact hammer form different fluid flow channels with the central shaft, and the flow distribution shaft main body and the impact hammer are pushed to continuously move upwards and downwards in a reciprocating manner through the pressure difference effect; and axial impact of the impact ham