Method for plugging seismic exploration seismic source gun hole

Abstract

The invention relates to a sealing method for the vibrating source blast hole in seismic exploration, which is characterized by comprising the steps of: (1) preparing a seismic exploration sealing agent forming barrel; (2) arranging the sealing angle from the open end of an liner into the liner, compressing to a demanded charge density, arranging the liner with the sealing agent into the chamber of a plastic shell to form a section of seismic exploration sealing agent pole; (3) charging a seismic source agent package into the seismic source blast hole, connecting 2 to 6 of seismic exploration sealing agent poles to form a seismic exploration sealing agent pole group to be arranged into the seismic source blast hole to reach the bottom of the seismic source blast hole, wherein when charges the seismic exploration sealing agent pole groups into the seismic source blast hole, the water in the seismic source blast hole should submerge the seismic exploration sealing agent pole groups. The sealing method can resolve the technical problems such as the energy of the seismic source agent package is dispersed early and has large loss, to improve the exploration depth and accuracy of seismic exploration and reduce the effect of blasting on environment in seismic exploration.

Description

technical field [0001] The invention belongs to the technical field of seismic exploration, and in particular relates to a plugging method for seismic source blast holes. Background technique [0002] Seismic prospecting is a method of geophysical prospecting based on the elasticity of rock. Seismic exploration uses artificial methods to excite elastic waves (seismic waves) in rocks, and uses seismic exploration instruments to detect ground vibrations at different positions along the survey line; records and stores the detected data in digital form, and extracts meaningful information through computer processing; Finally, the exploration results are displayed in the form of geological interpretation; thus the purpose of ascertaining the geological structure and census prospecting is achieved. Seismic prospecting has become the most effective method in petroleum prospecting. According to statistics, 90% of the total investment in petroleum prospecting in developed countries ...

AI Technical Summary

Problems solved by technology

If the blockage is not dense, it will first affect the downward effect of the initial wave, and the detection depth will also be reduced; secondly, it will also affect the accuracy of the reflected wave. After the explosive detonates, the main wave propagates downward, and part of the wave propagates upward. , the energy of this part of the wave is very large and cannot be ignored. After these waves reach the surface, a small part of them is transmitted and most of them are reflected, and the reflected waves will be superimposed with the waves reflected back from the main wave, which will affect the parameters of the seismic wave. Misjudgment may occur when the device analyzes these parameters; in addition, if the wave energy reaching the surface is too large, it will directly affect the safety of the ground environment; again, if the blockage is not dense, there will be punching holes, which will bring hazards such as flying stones, which is a Security risks

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