Natural gas sand detection device

Abstract

The invention discloses a natural gas sand content detection device. The sand content of natural gas in a pipe is detected through a gamma ray source, an amplifier and a scintillation probe; the device is fixed to the inner wall of a detection pipe through stretching and retracting of a first telescopic rod, and when detection needs to be conducted, the distance between the first telescopic rod and the second telescopic rod is adjusted, so the ray receiving device at the lower end of the first connecting rod and the ray emitting device at the lower end of the second connecting rod are locatedat the lower end of the second fixing cylinder and the lower end of the first fixing cylinder correspondingly. When the device is in use, no matter what angle the first telescopic rod is fixed on theinner wall of the detection pipe, the ray beams emitted by the ray receiving device and the ray beams emitted by the ray receiving and emitting device can always correspond to each other one by one, so gravel detection errors generated when the detection device is placed and adjusted and the first telescopic rod is not perpendicular to the inner wall of the detection pipeline can be effectively prevented.

Description

technical field [0001] The invention relates to a detection device, in particular to a detection device for sand content in natural gas. Background technique [0002] Natural gas plays a key role in the development of a country and the progress of industrial technology. Due to its environmental protection and high-quality features, natural gas has become the main energy source in the 21st century. [0003] Natural oil and gas resources are mainly located in unconsolidated sandstone formations, whose rocks have weak cementation and shallow burial, so sand production is very easy to occur when affected by fluid drag and pressure reduction. Natural gas sand production will not only reduce the production of gas wells and fields, but also damage downhole casings and surface equipment, affecting gathering and transportation systems and environmental resources. [0004] The safety of natural gas production has been plagued by sand production, and people are paying more and more a...

AI Technical Summary

Problems solved by technology

[0007] However, the device rotates the rotating body outside the detection pipeline, and cannot accurately rotate it to the center position of the detection flow channel, so the rays cannot be accurately corresponded to the amplifiers one by one, and the detection results are prone to deviations. At the same time, the detection pipeline does not detect When the rotating body rotates to the other direction, although it does not affect the fluid flow direction, the detection device has been placed in the natural gas transportation pipeline for a long time, which will corrode the detection device in the long run, resulting in inaccurate results

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