Instrument of automatic sand bailing and spectrum testing for real-time drilling monitoring

Abstract

The invention provides an instrument of automatic sand bailing and spectrum testing for real-time drilling monitoring. The instrument can preliminarily monitor oil saturation of rock debris in real time, implement the sand bailing and packaging automatically and provide engineering technicians with accurate real-time data, so that an oil and gas layer can be determined accurately. The instrument comprises a drilling fluid infusion tube equipped with a metering pump, wherein a vibration screen is disposed under an outlet of the drilling fluid infusion tube; a spectrum tester is disposed under a lower end of the vibration screen; a sand storage container capable of automatic sand discharge is disposed under the spectrum tester; the container is connected to a weight sensor; and a coding machine and an automatic bagging machine are disposed under the sand storage container. The spectrum tester, the sand storage container, the weight sensor, the coding machine and the automatic bagging machine are connected to a PLC and a computer; weight signals and spectrum signals of sand are transmitted to the computer; the signals are combined with data such as drilling time, well depths and pump strokes collected by a real-time drilling monitoring system; and after processing of computer software, oil saturation data of the oil and gas layer with the certain depth as well as the automatically bailed rock debris can be obtained.

Description

technical field [0001] The invention relates to the real-time collection and analysis technology of cuttings logging in the process of oil drilling, and is an automatic sand removal and spectrometer for real-time monitoring of drilling. Background technique [0002] Mud logging sand removal is a very heavy work. It is generally required to remove sand once per meter of oil and gas layers. If the oil and gas layers are tens or hundreds of meters long, the work is very heavy. Therefore, some irresponsible mud logging workers often go to vibration The sand is taken under the sieve and subpackaged after cleaning, which seriously distorts the data. Due to the lack of timely analysis after sand dredging, light alkanes will volatilize, and oil and gas layers will often be missed. Contents of the invention [0003] The object of the present invention is to provide an automatic sand removal and spectrometer for real-time monitoring of drilling, which can initially monitor the oil ...

AI Technical Summary

Problems solved by technology

[0002] Mud logging sand removal is a very heavy work. It is generally required to remove sand once per meter of oil and gas layers. If the oil and gas layers are tens or hundreds of meters long, the work is very heavy. Therefore, some irresponsible mud logging workers often go to vibration The sand is taken under the sieve and subpackaged after cleaning, which seriously distorts the data

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