Transverse wave excitation flat plate tooth suitable for transverse wave vibroseis and vibroseis vibrator

Abstract

The invention provides a transverse wave excitation flat plate tooth suitable for a transverse wave vibroseis and a vibroseis vibrator, and the transverse wave excitation flat plate tooth suitable for the transverse wave vibroseis comprises a flat plate; the flat plate tooth table is concentrically arranged on the lower surface of the flat plate; the rectangular pyramid teeth are fixed to the lower surface of the flat tooth table and evenly distributed on the lower surface of the flat tooth table at intervals. The controllable seismic source has the beneficial effects that when the rectangular pyramid teeth are in contact with the ground, no matter the flat plate vibrates back and forth or left and right, the stress state between the flat plate and the ground is the same, so that the contact attributes in the two directions are consistent, and the force transmitted to the ground by the flat plate is consistent in the two directions when the controllable seismic source works; therefore, the excited seismic waves are ensured to be consistent in two directions, and the purpose of enhancing the excitation stability of the transverse wave signal is achieved.

Description

technical field [0001] The invention relates to the field of seismic exploration equipment, in particular to a shear wave excited flat tooth and a vibrator vibrator suitable for a shear wave vibroseis. Background technique [0002] In the field of oil and natural gas exploration, vibroseis as the excitation source of artificial seismic signals have begun to be applied on a large scale. Shear wave vibroseis is a seismic signal excitation device used to excite shear waves, and it is an indispensable equipment for geographic exploration work. Plate teeth are an important structure on the seismic signal excitation device for excitation of shear wave signals. At present, the contact area of ​​the commonly used plate teeth with the ground is too small when the shear wave is excited, and the shear wave can only be excited in a single working direction. Re-pressing the soil, this process reduces work efficiency and increases work costs. SUMMARY OF THE INVENTION [0003] The inve...

AI Technical Summary

Problems solved by technology

At present, the commonly used plate teeth have too small contact area with the ground when exciting shear waves, and can only excite shear waves in a single working direction. If you want to excite shear waves in another working direction, you need to lift the plate completely off the ground and change the direction. Re-pressing into the soil, this process will reduce work efficiency and increase work cost

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