Tool and method for controlling drilling noise of hollow power drilling tool for underground information acoustic transmission

Abstract

The invention relates to a tool and method for controlling drilling noise of a hollow power drilling tool for underground information acoustic transmission. The tool comprises a controller mandrel, an anti-impact sleeve ring, an anti-rotating sealing cylinder, an anti-drop clamping ring and an anti-drop runner control cylinder, wherein the anti-impact sleeve ring is mounted at the upper part of the controller mandrel; the anti-rotating sealing cylinder is movably connected with the anti-tripping runner control cylinder together and is mounted at the middle of the controller mandrel; the anti-rotating sealing cylinder is in spline fit with the anti-tripping runner control cylinder to realize sliding in the axial direction and non-rotating in the circumferential direction; a diversion runner is arranged on the outer wall of the lower part of the controller mandrel, and is in sliding fit with the controller mandrel to realize opening and closing of the diversion runner. The tool and the method have the benefits as follows: 1, the working state of the power drilling tool can be started and stopped according to the well drilling state in the inclination survey process; 2, a noise controller is simple in structure and extremely short in length; 3, the mounting and using are convenient, the maintenance is simple and the safety is good.

Description

technical field [0001] The invention relates to a drilling engineering machine, in particular to a hollow power drilling tool drilling noise control tool and method for acoustic transmission of downhole information, which is used to suppress the hollow power caused by the pump cycle during the acoustic transmission of directional well inclination measurement data. The noise of the drilling tool driving the drill bit to slide and grind the well wall or the bottom of the well. Background technique [0002] At present, in oil field drilling engineering, the downhole information transmission technology using sound waves as carriers and drill strings as information transmission channels can improve the transmission efficiency of bottomhole data, reduce the dependence of data transmission on the well environment, and reduce the cost of data transmission equipment. Therefore, it has become a research hotspot in the field of underground information wireless transmission. Howeve...

AI Technical Summary

Problems solved by technology

However, during the drilling process, the noise generated by the drill bit breaking rock, drilling fluid circulation and drilling rig work has not been able to solve the problem of acoustic carrier interference, which ultimately affects the realization of downhole information acoustic transmission technology

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