Experimental device and measurement method for cutting heat and drilling parameters of rotary drilling in ice layer

Abstract

The invention discloses an experimental device and a measurement method for ice layer rotary drilling cutting heat and drilling parameters. The experimental device is composed of a thermal couple, a wireless transmitter, a torque sensor, two pressure sensors, a flow meter, a pressure gage, a draw cord displacement sensor and a computer assembly. The measurement method includes several steps, wherein a first step is that temperature signals detected by the wireless transmitter are transmitted to a wireless receiving device on the computer assembly, and the signals are converted and then transmitted to a computer and displayed in real time in a dynamic mode through configuration software; a second step is that the rotation speed and the torque of a drill bit are detected; a third step is that the bit pressure is obtained through differential pressure; a fourth step is that the flow rate of drilling fluid and the pumping pressure are detected; a fifth step is that the average rate of penetration is obtained; and a sixth step is that the parameters, namely the bit pressure, the rotation speed, the flow rate and the average rate of penetration, can be adjusted through a drilling machine and a slurry pump. The experimental device and the measurement method for the ice layer rotary drilling cutting heat and the drilling parameters have the advantages that a blank on the aspect of ice layer rotary drilling cutting heat researches is filled, and a basis is provided for optimizing the combination of the drilling parameters and the structural type of the drill bit.

Description

technical field [0001] The patent of the present invention relates to an experimental device and a measurement method of relevant parameters in the field of drilling technology, in particular to an experimental device and a measurement method of cutting heat and drilling parameters of ice rotary drilling. Background technique [0002] When the drill bit cuts the ice or ice-rock interlayer during the ice layer rotary drilling process, a certain amount of heat will be generated, which will cause the temperature around the drill bit cutting tool to rise. When the temperature rises greatly, it will cause the ice chips to melt or be in a molten state. The physical and mechanical properties of the ice chips will change and they will easily adhere to the cutting tools of the drill bit or other positions of the drill tool, which will affect the ROP. At the same time, the water produced by melting will easily The local part of the drilling tool freezes into ice again, resulting in po...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the influence of parameters such as weight on bit, rotational speed and drilling fluid flow on cutting heat cannot be accurately obtained during the ice layer rotary drilling process Parameter experimental device and measurement method

Images