摘要
基于砾石填充的防砂工艺,提出了利用康普顿散射效应测量密度的方法来评价砾石填充后的防砂效果。测量物质密度时,伽马射线和物质发生康普顿散射效应,散射射线的波长随散射角的变化而变化,散射射线的强度和物质的体积密度及原子核序数等因素有关。因此,根据康普顿散射效应的原理,探测射线与被测物质的康普顿散射效应前后的射线强度,测定出被测物质的体积密度,进而定性地分析砾石填充防砂的效果。
The use of Compton scattering effect of the density measurement method is proposed to evaluate effects of packed gravels,based on packed gravels for sand control technology.When detecting the volume density of substances,there is the Compton scattering effect between the-rays and substances.The Compton scattering-ray wavelengths vary with the angle of scattering.The intensity of scattering rays are related to the material volume density and the nucleus ordinal numbers of the substances and other factors.Therefore,according to the theory of Compton scattering effect,detecting the rays' intensity between the rays and substances before and after Compton scattering effect,the volume density of substances would be obtained,and the qualitative analysis of the effect of packed gravels would be also obtained.
出处
《石油仪器》
2010年第5期10-12,99,共3页
Petroleum Instruments
