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

A technology of drilling parameters and experimental devices, applied in the field of drilling, can solve the problem that the thermal influence of cutting cannot be accurately obtained, etc.

Inactive Publication Date: 2015-10-28
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0026] see figure 1 , figure 2 , image 3 and Figure 4 Shown:

[0027] The ice layer rotary drilling cutting heat and drilling parameter experimental device of the present invention is composed of thermocouple 1, wireless transmitter 2, torque sensor 3, two pressure sensors 4, flow meter 5, pressure gauge 6, stay rope displacement The sensor 7 and the computer assembly 8 are composed, wherein the thermocouple 1 is installed in the round hole 11 of the cutting tool 10 at the lower end of the drill bit 9, and the thermocouple 1 and the wireless transmitter 2 are connected by a connecting wire 12, and the wireless transmitter 2 is fixed on the drill bit. On the rod 15, the wireless transmitter 2 rotates together with the drill rod 15, the connecting wire 12 of the thermocouple 1 and the wireless transmitter 2 is arranged in the groove 14 provided on the drill bit 9 and the ice core pipe 13, and the two sides of the torque sensor 3 rotor The ends are respectively connected w...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/07E21B47/00E21B47/06E21B21/08E21B44/00
Inventor 曹品鲁刘春朋郑治川达拉拉伊宫文斌白杨张野谯延杰廖坤
Owner JILIN UNIV
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