Frequency-adjustable torque force impact acceleration device

Abstract

The invention relates to the technical field of well drilling hydraulic torque force impact tools, and provides a frequency-adjustable torque force impact acceleration device. The frequency-adjustable torque force impact acceleration device comprises an outer cylinder, an impact cylinder, a reversing sleeve base, an impact hammer, a reversing sleeve, a gland, a diversion filter screen, a bearing pedestal and a lower connector. An upper step hole, a middle step hole and a lower stop hole are formed in the outer cylinder, wherein the inner diameters of the upper step hole, the middle step hole and the lower step hole are sequentially decreased. The frequency-adjustable torque force impact acceleration device is reasonable and compact in structure, few in part and convenient to assemble, interval parts are not prone to damage and can not get stuck, an internal thread in the inner wall of the lower connector below the outer cylinder and an annular table does not need to be connected with a drill stem through a conversion connector any more, and the impact frequency can be regulated according to requirements by regulating a spray nozzle. Meanwhile, impact force can be directly transmitted to a drill bit and is converted into mechanical impact force through drilling hydraulic force, and therefore the drill bit can obtain stable torque and unceasingly cut a stratum to eliminate stick slip, the service life of the drill bit is prolonged, the drilling speed in hard rock layers is increased, great drilling cost and drilling time are saved, and the application range is wide.

Description

technical field [0001] The invention relates to the technical field of drilling hydraulic torsion impact tools, and relates to a frequency-adjustable torsion impact speed-increasing device. Background technique [0002] With the continuous development of oil fields, the difficulty and depth of drilling are also increasing. When encountering some hard formations, the drill bit will experience stick-slip vibration, which can easily cause damage to the cutting teeth of the drill bit and then fail, directly affecting the drilling speed. Through continuous experimental research, it is found that the torque of the drill bit cannot be output smoothly due to formation reasons during the drilling process, resulting in stick-slip problems. Therefore, solving the torque transmission problem of the drill bit in the drilling process becomes the key to speeding up. Experiments have shown that the drill bit can continuously cut the formation with a stable torque impact force, thereby eli...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a frequency-adjustable torsion impact speed-increasing device, which overcomes the deficiencies of the prior art, and can effectively solve the problems of limited application range, easy damage to internal parts of the device, and easy consumption of impact force in current torsion impact tools. The problem of frequency conversion work

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