State monitoring system and monitoring method of radioactive source in oilfield logging system

Abstract

The invention discloses a system and method for monitoring a radioactive source state of an oil field well logging system. The monitoring system comprises a radioactive source vehicle, an isolating tank for placing a radioactive source and a plurality of scale source boxes are contained in a carriage of the radioactive source vehicle, a plurality of scale sources are placed in each scale source box, all the scale sources are connected to a switch value acquiring module through interconnecting devices I, and the switch value acquiring module is connected to a remote measuring and controlling terminal system through an interconnecting device II; a plurality of strong radioactive source acquiring sensors are arranged on the periphery of the outer wall of the isolating tank, all the strong radioactive source acquiring sensors are connected to the remote monitoring and controlling terminal system, and the remote monitoring and controlling terminal system transmits state signals to a center control room through wireless communication modules. Wired connection is adopted for the interior of the radioactive source vehicle, all the state signals are converted to digital signals, finally, the digital signals are transmitted through the wireless communication modules, data amount is small, occupied bandwidth is small, and the system and method for monitoring the radioactive source state of the oil field well logging system are particularly suitable for monitoring the radioactive source state of an oil field well logging system in a remote area in real time.

Description

technical field [0001] The invention relates to a radioactive source state monitoring system, in particular to a radioactive source state monitoring system and a monitoring method of an oil field logging system. Background technique [0002] There are many radioactive sources in the oilfield logging system, including two types of strong radiation sources and calibration sources used to calibrate instruments. They are special materials strictly managed by the state. Once lost, they will pose serious hazards to human life. The logging system is specialized in a vehicle carrying radioactive sources. Its function is to take the radioactive sources out of the warehouse and transport them to the oil well for use in well logging. After use, they are loaded back into the vehicle and transported back to the warehouse. The process takes a long time, sometimes several months, and must be monitored throughout the process. In order to achieve this goal, people have made many attempts, s...

AI Technical Summary

Problems solved by technology

In order to achieve this goal, people have made many attempts, some tried to install wireless communication devices on the radioactive source, some tried to use radio frequency tags, and assisted the solar power supply system, but all of them could not be realized due to power supply and other problems.

[0003] Oilfield logging systems often work in remote areas far from cities, with poor or no network coverage, and it is basically impossible to transmit large amounts of data

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