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Drilling fluid mud cake performance evaluation instrument (ZN-4A)
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Product overview
There is no qualitative standard for the definition of the hardness of drilling fluid mud cake. According to the physical definition of hardness, the hardness of the mud cake is defined as the ratio of the pressure (the default value is 7.5N) to the actual deformation of the mud cake (in 0.1mm). The mud cake hardness is quantified to facilitate the comparison of different mud cake hardness. The main detection components of the drilling fluid mud cake performance evaluation instrument are the probe rod moving down at a constant speed and the weighing sensor for placing the mud cake. The stepper motor drives a high-precision screw up and down, and the probe rod is fixed with the screw. Through the precision positioning of the linear guide rail, the up and down movement of the probe rod is effectively controlled. During the experiment, the number of steps of the stepper motor rotation is converted into the shape variable of the mud cake. The pressure applied by the probe on the mud cake is detected by the acquisition system, and then converted into analog electrical signal output, and the analog signal is converted into a digital signal by a precision AD converter. These digital signals, through the Cotex-M3 architecture ARM control system for digital signal operation, processing and driving TFT, and finally the detection results are displayed on the TFT liquid crystal.
Model and specification
ZN-4A type
The main technical parameters of the instrument:
Serial Number
Name
Technical parameters
1
Power
220V±5% 50Hz
2
Test range
0-4mm
3
comprehensive measurement error
0.1mm
4
Outer diameter of test disc
φ25.4mm
5
Maximum Weighs
750g
Drilling fluid mud cake performance evaluation instrument (ZN-4A)
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It mainly produces drilling fluid and completion fluid analysis instruments. The products are widely used in the drilling sites and laboratories of PetroChina, Sinopec, CNOOC, Yanchang Petroleum and other groups, as well as the teaching and laboratories of major petroleum universities and scientific research institutions.
ZhenHua Packing Machinery
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