UDC 330.1
DOI: 10.36871/2618-9976.2022.02.002
Authors
Zarur L.
Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
Malykhina G.F.
Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
Abstract
The interaction of gamma rays with matter is the crucial factor in the detection of these rays. Scintillation detectors respond to gamma rays by producing a small flash of light, or scintillation. The detector crystal is mounted on a photomultiplier tube that converts the scintillation into an electrical pulse which is processed to generate a signal. A class of multiphase flowmeters is based on this principle to measure the different fractions contained in oil well flow. In this paper, different modes of gammaray interactions were described, the statistical distribution for gammaray generation and detection was presented, and a simulation of detection of gammaray passing through a tube containing oil and gas was performed. The simulation led to the generation of data which was analysed and a conclusion was reached that the detected gamma rays have a different statistical distribution than the generated rays due to the gas bubbles' presence and absence in the flow.
Keywords
Gamma radiation, Oil wells, Multiphase flow, Noncontact measurement
