轻烃分析技术在储层评价中的应用研究

Application of light hydrocarbon analysis technology in reservoir evaluation

在解释评价中轻烃参数的变化规律是判别储层流体性质的基础。在现场生产中,由于仪器设备不同、进样方式不同等多种因素影响,导致轻烃谱图的每个化合物保留时间存在差异性,在后期资料应用方面不能更加直观地对比分析,从而影响资料作用的发挥。尝试利用多点保留时间校正法对轻烃谱图进行伸缩和平移处理,轻烃谱图除了保留时间外的其余积分数据不受影响,在此基础上通过不同流体的谱图相似度分析、聚类分析、偏最小二乘判别分析,分别建立了新的解释评价方法,为轻烃分析技术在储层评价中的应用提供了新的思路,在后期生产应用中具有较高的推广价值。

The change law of light hydrocarbon parameters in interpretation and evaluation is the basis of reservoir fluid properties identification.In field production,the influence of various factors such as different instrumentation and different sampling methods leads to different retention time of each compound in light hydrocarbon spectrum,and vague comparison and analysis in later data application,which affects the play of the role of data.An attempt of using multi-point retention time correction method to stretch and shift the light hydrocarbon spectrum was made with integral data not being affected except for retention time of light hydrocarbon spectrum to establish new interpretation and evaluation methods respectively through spectrum similarity analysis,cluster analysis,and partial least square discriminant analysis of different fluids.It provides new ideas for the application of light hydrocarbon analysis technology in reservoir evaluation and worth promoting in later production.