Monitoring data conversion device and method of nuclear magnetic resonance logger

Abstract

The invention discloses a monitoring data conversion device and method of a nuclear magnetic resonance logger. The method comprises the following steps: by a universal serial bus (USB) function equipment interface module, receiving command information and / or parameters sent from a personal computer (PC) to a downhole tool and sending the decoded downhole data to the PC; when a digital signal processing (DSP) control module detects that the USB function equipment interface module receives the command information and / or parameters, controlling the USB function equipment interface module to send the command information and / or parameters to an EDIB bus interface module; when detecting that the EDIB bus interface module has downhole data, sending the data to the USB functional equipment interface module; by the EDIB bus interface module, receiving the command information and / or parameters, carrying out Manchester encoding on the command information and / or parameters and sending the command information and / or parameters to the downhole tool; receiving the returned downhole data and carrying out Manchester decoding on the returned downhole data. Through the scheme, the monitoring of the nuclear magnetic resonance logger can be more simple and intelligent so as to reduce the data analysis difficulty.

Description

technical field [0001] The invention relates to nuclear magnetic resonance logging technology, in particular to a monitoring data conversion device and method for nuclear magnetic resonance logging tools. Background technique [0002] As a high-end logging technology, nuclear magnetic resonance logging has been widely used. The development, manufacture, repair and maintenance of nuclear magnetic resonance logging tools are inseparable from the application of the overall monitoring system of the tool. At present, Schlumberger, Baker Hughes and Halliburton have research and development production lines of nuclear magnetic resonance logging instruments abroad, and they also have their own research and development monitoring devices. COSL is the only company in China that has a research and development production line of nuclear magnetic resonance logging instruments so far. At the same time, with the efforts of scientific researchers, it has also developed corresponding instru...

AI Technical Summary

Problems solved by technology

Since the instruments of each company have their own software and hardware characteristics and quality control specifications, such monitoring devices are only applied to their own instruments, and often the device structure is complicated, and the data analysis is complicated, which increases the difficulty of fault judgment.

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