Torsion impactor based on turbine and gear

Abstract

The invention provides a torsion impactor based on a turbine and a gear, which solves the sticky-slip vibration produced by a drill bit in a drilling process. The torsion impactor based on the turbineand the gear is characterized in that the torsion impactor consists of a turbine assembly, an adapter substitute and an impact assembly, wherein the turbine assembly generates high-speed rotary motion under the impact effect of drilling fluid to further drive a flange driving shaft to rotate; on one hand, the flange driving shaft drives an eccentric impact hammer to rotate at a high speed by virtue of a driving shaft and a driving pin; on the other hand, the flange driving shaft drives an outer gear to rotate to be engaged with an inner gear shell, a lower rotation speed is transferred to the inner gear shell to drive the impact driving shaft to rotate at a lower rotation speed; and a rotation speed difference is formed between the impact driving shaft and an eccentric impact block, an impact effect is generated, and the torsion vibration produced by the collision is transferred to a lower joint by virtue of the impact driving shaft. The torsion impactor can continuously produce thetorsion impact vibration, so that the rock breaking efficiency of the drill bit is increased, and the jamming of drilling tool and the sticky-slip phenomenon can be effectively avoided.

Description

technical field [0001] The invention relates to a torsion impactor based on a turbine and a gear used in the fields of petroleum and natural gas shale gas drilling, mining, geological drilling and the like. Background technique [0002] In recent years, with the country's increasing demand for oil and natural gas, the exploitation of shale gas is also a hot spot and a challenge. Because during the drilling process, due to the driller’s technical and experience problems, the driller’s technical and experience problems often cause the drill to be sent too late or too fast, or because of the friction of the well wall, the drilling pressure applied to the drill bit is unstable, which affects the rock breaking efficiency. It is even possible to damage the drill bit, crack the cutting teeth of the drill bit, etc. due to the sudden increase of the drilling pressure, which will affect the drilling speed. On the other hand, when the PDC drill bit is drilling hard or abrasive formati...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a torsion impactor based on a turbine and a gear in order to solve the problems of drill bit sticking and stick-slip of the drill string leading to drilling tool failure and low ROP in the drilling process. There are technical flaws to increase the drilling speed

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