是表示物质中含氢量多少的参数,一种物质的含氢指数等于该物质所含的氢原子核数与同体积淡水中所含氢原子核数之比
... 地层因数(F)formation factor 饱水岩石的电阻率(Ro)与其孔隙中地层水电阻率(Rw)的比值,通常成为地层因数,用F表示, F=Ro/Rw 含氢指数 hydrogen index ...
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含氢指数是中子孔隙度测井响应的主要参数。
It is a key factor in the response of a neutron porosity log.
天然气对中子孔隙度测量的影响不能由含氢指数的差别来解释。
That part of the effect of gas on the neutron porosity measurement that is not explained by differences in hydrogen index.
本文从密度和中子测井信息中提取的地层体积密度及含氢指数,分别同气层体积密度及含氢指数的下限值作比较,前者小于后者,直观指示为气层。
In this paper, the stratigraohic volume density and hydrogen index gained from the information of density-neutron logging are respectively compared with both the low-limit values of gas formation.
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