摘要
一种使用 Ｃｏ５７放射源的持气率测井仪已于１９９８年由哈里伯顿（ Ｈａｌｌｉｂｕｔｏｎ）公司研制成功。在两相流中这种仪器在各种斜度的套管井（包括水平井）里都能以相同的精度测量井中流体的持气率。测量结果不受井内流体流型、矿化度和套管外物质的影响。持气率的测量范围是０～１００％。
Gas holdup logging tool using Co57 radiation source is able to measure gas holdup with same accurancy in deviated biphasic wells (including horizontal wells). The measuring result is independent of both flow patterns and water salinity within borehole, and the composition of materials outside casing. The measuring range of gas holdup tool is 0-100%. The design principle of gas holdup tool using Co57 is analyzed in this paper.
出处
《石油仪器》
2001年第2期29-31,共3页
Petroleum Instruments
关键词
核测井仪
光电吸收系数
衰减
密度
计数
Co^57
持气率
康普顿散射
nuclear logging tool, photoelectric absorption factor, attenuation, density, count rate, Co57, gas holdup, Compton scattering.
