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针对越来越复杂的致密低渗砂岩储层评价存在的问题和难点,综合静态资料和动态资料的定性、定量参数,提出一套针对致密低渗储层的综合定量评价方法,进行系统的、全面性的分析,其储层的定量评价结果可直接运用于生产中,该方法在油气田开发、评价中具有重要的意义。该方法总体思路是首先选择评价指标、并对评价指标进行标准化,然后赋予每个评价指标一定的权重系数,通过储层综合评价系数计算和储层类型划分,结合储层经济界限,确定储层评价标准,进行储层综合定量评价,优选有利区带,为井位部署及产能建设提供依据。利用该方法在鄂尔多斯盆地某气田开展储层综合定量评价,优选有利区部署井位,经新实钻井验证,吻合率较好,在该气田的产能建设中起到了至关重要的作用。
Aiming at the problems and difficulties in the evaluation of the increasingly complex and tight sandstone reservoirs, a set of comprehensive and quantitative evaluation methods for the tight and low permeability reservoirs are proposed based on the qualitative and quantitative parameters of the static and dynamic data. The systematic, Comprehensive analysis, the reservoir quantitative evaluation results can be applied directly to the production, the method in the field of oil and gas development, evaluation of great significance. The general idea of this method is to first select the evaluation index and standardize the evaluation index, and then give each evaluation index a certain weight coefficient. Through the calculation of reservoir comprehensive evaluation coefficient and the division of reservoir type, combined with the economic limit of reservoir, the reservoir Evaluation criteria, comprehensive quantitative evaluation of the reservoir, the preferred favorable zone for the well deployment and production capacity to provide the basis. By this method, a comprehensive reservoir quantitative evaluation is carried out in a gas field in the Ordos Basin. It is preferable to deploy wells in the favorable area. The new wells are verified by new drilling method and the coincidence rate is good, which plays a crucial role in the capacity-building of the gas field.