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首页> 外文期刊>Fresenius environmental bulletin >A NEW APPROACH FOR TIGHT OIL RESERVOIR QUALITY EVALUATION USING A COMPREHENSIVE EVALUATION FACTOR
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A NEW APPROACH FOR TIGHT OIL RESERVOIR QUALITY EVALUATION USING A COMPREHENSIVE EVALUATION FACTOR

机译：综合评价因子的致密油储层质量评价新方法

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The evaluation of reservoir quality pre-fracturing treatments is one of the most important jobs faced by oilfield engineers. However, reservoir quality relates to the quantitative complicated evaluation of factors for individual members as well as to their comprehensive influence. It is difficult to describe the nonlinear relationship of various factors. A novel and original combination of the analytic hierarchy process (AHP) and grey relation analysis (GRA) method was proposed in this study to solve the problem. First, based on the parameters of the constructed wells, several elements were chosen as appraisal factors. Then, GRA was used to determine the weights of the main factors. Finally, comprehensive evaluation factor (CEF) was applied to determine the classification threshold and evaluate reservoir quality comprehensively with considering the various factors at the same time. The new method was successfully applied to 13 wells of an actual tight oil reservoir in Northeast China and finally the reservoir quality was ranked in order of the CEF. Practical application results demonstrated a good agreement between the measured initial cumulative production and the comprehensive evaluation factor. The new approach can be used to evaluate reservoir quality quickly and economically, the study provides important reference for hydraulic fracturing optimization design.
机译：储层质量预压裂处理的评价是油田工程师面临的最重要的工作之一。但是，储层质量与单个成员因素的定量复杂评估以及它们的综合影响有关。很难描述各种因素之间的非线性关系。为了解决该问题，本研究提出了一种新颖而新颖的组合方法，即层次分析法和灰色关联分析法。首先，根据施工井的参数，选择几个要素作为评价因素。然后，使用GRA来确定主要因素的权重。最后，应用综合评价因子（CEF）确定分类阈值，同时综合考虑多种因素对储层质量进行综合评价。新方法成功地应用于中国东北某实际致密油藏的13口井，最终以CEF的顺序对油藏质量进行了排序。实际应用结果表明，测得的初始累计产量与综合评估因子之间具有良好的一致性。该方法可用于快速，经济地评价储层质量，为水力压裂优化设计提供重要参考。

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