利用测井资料进行天然气储层产能的评价与预测

以鄂尔多斯某区块石盒子组第一段为主要研究层段,以测井数据体为实际利用资料,通过对测井数据资料的聚类分析,建立了对应产层的评价参数,以多参数聚类分析方法建立了天然气储层产能评价和预测的标准模式,从而达到从定性到定量对天然气储层的产能进行评价和预测的目的.分析结果表明,该区块目的层段的产能级别可分为两类,一类的产能级别较差,其无阻流量小于5 000 m3/d,达不到国家工业气流标准,无开采价值;而另一类的产能级别较好,其无阻流量大于5 000 m3/d,多在10 000 m3/d以上,具备一定的开采价值.研究验证该方法是一种行之有效的方法.

EVALUATION AND PREDICTION OF GAS RESERVOIR PRODUCTIVITY BY THE USE OF LOG DATA

Some block area of Ordos Basin is the main layer studied in this paper based on the use of log data for the productivity research.The cluster analysis of the log makes it possible to set up the parameters of the productivity evaluation correspondingly.Then after the practical analysis and study of the standard model of gas reservoir productivity evaluation and prediction can be on in the way of multi-parameters cluster analysis to realize the gas reservoir productivity evaluation and definite and quantitative prediction.According to the research, the productivity levels of this block includes two parts.One is the productivity output, less than the 5 000 m~3/d, which is unfit for the standard of state natural gas and has no value of development.While the other is more than 5 000 m~3/d,many of which are more over 10 000 m~3/d and thus deserves development. At the same time, it also proves that the way of research for the productivity in this paper is an effective method.