Transverse wave vibroseis vibrator flat plate suitable for hard earth surface

Abstract

The invention relates to a transverse wave vibroseis vibrator flat plate suitable for a hard earth surface for exploration. The transverse wave vibroseis vibrator flat plate comprises a box body, a flat plate and a motor, wherein the center drill bit and the four edge drill bits are installed below the flat plate, the center drill bit is arranged at the center below the flat plate, the edge drill bits are arranged at the four corners of the flat plate, and the motor is fixed above the flat plate and connected with the center drill bit through a bevel gear. The center drill bit and the edge drill bit are connected with the center gear and the edge gear through splines and installed inside the flat plate together, and the drill bit working part is located outside to conduct drilling work. The motor drives the center drill bit of the flat plate to enable the center gear to rotate together, and the center gear drives the edge gear to drive the edge drill bit to rotate. And for the complex and hard earth surface, the drill bit is used for drilling the earth surface, and when the drill bit is embedded into the earth surface, the flat plate is better attached to the earth surface. The coupling effect of the transverse wave vibroseis flat plate and the ground can be improved, and transmission of excitation signals is enhanced.

Description

technical field [0001] The invention relates to a shear wave vibroseis vibrator plate suitable for hard ground in the technical field of seismic exploration. Background technique [0002] In oil and gas exploration, shear wave exploration technology has played a good role and is an effective method for discovering oil and gas fields. Therefore, it is imperative to develop high-performance shear wave vibroseis. During the scanning vibration of the shear wave vibroseis, the flat plate should be kept fitted with the ground and cannot be separated from the ground; once the flat plate is separated from the ground, decoupling will occur. Decoupling will produce a phase error that is difficult to correct for the returned source signal, resulting in the degradation of the characteristics of the shear wave source signal and damage to the quality of seismic data. [0003] In some hard surface areas, the surface conditions of the operating site of the shear wave vibroseis will become ...

AI Technical Summary

Problems solved by technology

[0005] 2. The excitation signal is severely distorted and interfered;

[0006] 3. The quality of the excitation seismic signal varies greatly, the same excitation parameters are different and the surface varies greatly

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