Experimental device and test method for deep ice layer electric mechanical core drill circulating system

Abstract

The invention discloses an experimental device and a test method for a deep ice layer electric mechanical core drill circulating system. The experimental device comprises a shaft, a drill, a water pump and a signal detecting device. The shaft is fixed on a base in a sealed manner. A top cover is disposed at the upper end of the shaft. A central connecting shaft is fixed on the base. The signal detecting device comprises two temperature sensors, a flow sensor, a pressure sensor, a rotation speed sensor, a magnet and a computer component. The test method includes the steps of firstly, measuring drilling fluid flow; secondly, measuring rotation speed of the drill; thirdly, measuring outlet pressure of the water pump; fourthly, measuring environment temperature outside the shaft; fifthly, dynamically displaying in real time through configuration software; sixthly, measuring related parameters. The experimental device and the test method has the advantages that corresponding data support is provided for deep ice layer electric mechanical core drill design optimization and water pump selection.

Description

technical field [0001] The patent of the present invention relates to an experimental device and a testing method for an electromechanical core drilling tool in a deep ice layer, and in particular to an experimental device and a testing method for a circulation system of an electromechanical core drilling tool for a deep ice layer. Background technique [0002] At present, in the process of drilling ice cores in deep ice layers, the complete removal of ice debris is one of the key requirements for successful ice core drilling. Otherwise, ice debris will form an ice ring accumulated near the upper part of the drill bit, which will affect the drilling efficiency. A stuck pipe accident may result. In electromechanical drilling in deep ice layers, the drilling fluid is usually driven by the downhole pump to form local reverse circulation at the bottom of the hole, and the ice debris is brought out from the bottom of the hole and collected into the ice debris chamber. Therefore, ...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the performance parameters such as the pressure and flow of the water pump cannot be accurately obtained and the chip removal capacity of the circulation system cannot be detected in the circulation system part of the electromechanical core drilling tool in deep ice, thereby providing a deep Experimental device and test method for ice electromechanical core drilling tool circulation system

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