The relationship between hydrogen index,neutron logging and formation porosity had been introduced simply.
简单介绍了中子测量与地层含氢指数及地层孔隙度的关系,介绍了地层含气对中子测量的影响以及泥浆侵入对中子在含气地层响应特征的影响。
Well log data from three wells in A Oilfield were processed by the three-porosity model and other two traditional methods proposed respectively based on ratio of cation exchange capability and hydrogen index(CEC/IH) and gamma spectrum data,and the results were.
为了准确计算粘土矿物的含量,在缺少自然伽马能谱资料的情况下,利用自然伽马、中子、密度、声波组合参数,通过多元回归建立了计算粘土矿物的三孔隙度模型,同时利用三孔隙度模型、阳离子交换能力与含氢指数比值(CEC/IH)和自然伽马能谱资料3种计算粘土矿物含量的方法对A油田3口井的资料进行了处理,并对处理结果作了对比分析。
When there is natural gas in the reservoir, neutron logs will show differences obviously owing to different hydrogen index and oil water layers.
当储层中存在天然气时,由于其含氢指数与油水层的不同,在中子测井曲线上会显示出明显的差异;自然伽马低值,密度测井值偏低;同时,会导致纵波速度减小,声波时差增大,根据这些差异,能有效地利用测井资料识别天然气。