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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5000m3/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5000m3/d,多在10000m3/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。
Taking the first section of Shihezi Formation in a block of Ordos as the main research interval, logging data are used as actual data, and the clustering analysis of logging data is used to establish the evaluation parameters of corresponding layers. The clustering analysis method establishes a standard model of natural gas reservoir productivity evaluation and prediction so as to achieve the purpose of evaluating and predicting the natural gas reservoir productivity qualitatively and quantitatively. The analysis shows that the production levels of the target section of the block can be divided into two categories, one of which is poor in production capacity and the unobstructed flow is less than 5000m3 / d, which can not reach the national industrial gas flow standard and has no mining value; Class production capacity is better, the unobstructed flow is greater than 5000m3 / d, more than 10000m3 / d above, with a certain value of exploitation. Research and verification of the method is an effective method.