Hole wall directional hot melt coring drilling tool for ice layer

Abstract

The invention discloses a hole wall directional hot melt coring drilling tool for an ice layer. The drilling tool is of a sleeve structure and comprises a control bin, an in-hole positioning system and a hole wall coring system, wherein the control bin is arranged on the upper portion, the hole wall coring system is arranged on the lower portion, the in-hole positioning system is connected to the top end of the hole wall coring system, the hole wall coring system is driven by the in-hole positioning system to rotate, a supporting mechanism is connected between the lower end of the control bin and the top end of the in-hole positioning system, the control bin is connected with the in-hole positioning system and the hole wall coring system, the control bin can collect signals transmitted by the in-hole positioning system and the hole wall coring system, and the control bin provides power for the in-hole positioning system and the hole wall coring system and controls work of the in-hole positioning system and the hole wall coring system. The hole wall directional hot melt coring drilling tool has the advantages of being simple in structure, light in weight, free of pollution to the environment and large in coring diameter, the drilling efficiency is improved, the interior of the drilling tool has anti-icing performance, and drilling safety is guaranteed. In-hole accurate positioning and coring can be realized.

Description

technical field [0001] The invention relates to a hole wall core drilling tool, in particular to a hole wall directional thermal melting core drilling tool for ice layers. Background technique [0002] At present, a large amount of precious biological and climate environmental information is stored in the ice layer inside the polar glaciers. Obtaining ice core samples inside the ice layer is a necessary way to obtain the above information. At the same time, there are many basic research directions related to polar science. The key issue also needs to obtain ice core samples from deep in the ice layer, so in recent years, countries around the world have successively carried out deep ice core drilling projects in the polar regions. However, in the actual process of drilling ice cores, low-quality ice cores and incomplete ice cores are prone to occur, which makes the current deep polar ice samples not evenly distributed in depth, and a large number of vacancies appear, which ma...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of complex drilling tool structure and low drilling efficiency caused by repeated drill lifting in the current ice layer coring drilling, and to provide a directional thermal melting coring for ice layer hole wall Drilling tool

Images