| 摘要: |
| 注C02混相驱是一种提高原油采收率的重要手段,实施该方法的关键是筛选出具有开发潜力的油藏。目前， 在注C02混相驱油藏的筛选上,缺乏统一的筛选指标和筛选方法。通过对国内外注C02混相驱油藏开采情况的分 析和对比研究,选取了影响注C02开采效果的12个筛选指标，利用概率与数理统计方法提出了筛选指标的评价标 准，并应用模糊优选理论和模糊层次分析法，建立了区间数注C02混相驱油藏筛选模型。应用该筛选方法对6个典 型的候选油藏进行了筛选排序和综合评价。结果表明，该方法能够客观地评估油藏注C02开发潜力的大小。 |
| 关键词: 注C02混相驱 筛选指标 评价标准 区间数筛选模型 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金项目(40472156) |
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| New screening method for reservoir by C02 injection miscible flooding |
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LEI Huai-yan1,2,GONG Cheng-lin1,GUAN Bao-cong1
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(1.State Key Laboratory of Marine Environmental Science, College of Oceanography and Environmental Science of Xiamen University,Xiamen 361005 t Fujian Province, China ;2. Lanzhou Research Center of Petroleum Resources，Institute of Geology and Geophysics, Chinese Academy ofSciences，Lanzhou 730000, China)
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| Abstract: |
| C02 injection miscible flooding is an important method for enhanced oil recovery ( EOR). It is important to screen out the potential reservoirs for using the method. Now, there aren't uniform screening indexes and method about screening out C02 injection miscible flooding reservoirs. Based on the analysis and researches of the C02 injection miscible flooding reservoirs, 12 indexes affecting C02 injection miscible flooding results were picked out. By the method of probability statistics, the assessment criterions were brought forward. And combining with fuzzy optimum and fuzzy analytical hierarchy process (FAHP) , the interval number screening model for C02 injection miscible flooding reservoirs was successfully established. This screening method was used to screen and assess six classical candidate reservoirs about C02 injection miscible flooding. The results show that the method could perfectly evaluate and screen the potential of C02 injection of the candidate reservoir. |
| Key words: C02 injection miscible flooding screening index assessment criterion interval number screening model |
