| 水驱后油藏氮气驱开发效果分析 |
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| 引用本文： | 王梓吉,姚约东,周旭,王家暖,乔长发.水驱后油藏氮气驱开发效果分析[J].科学技术与工程,2014,14(34). |
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| 作者姓名： | 王梓吉 姚约东 周旭 王家暖 乔长发 |
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| 作者单位： | 1. 中国石油大学(北京)石油工程教育部重点实验室,北京,102249
2. 辽河油田欢喜岭采油厂,盘锦,124114 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） 新世纪优秀人才支持计划 (NCET-13-1030) |
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| 摘 要： | 辽河油田杜家台油层为低渗透储层,非均质性严重,开发时间长,含水率高,注水困难,为了改善杜家台油层开发效果,拟进行氮气驱开发。首先通过对杜家台油层原油进行了相态模拟研究,计算出了杜家台油层氮气驱最小混相压力(MMP),确定了杜家台油层氮气驱为非混相驱替。通过杜家台油层典型井组氮气驱开发的方案设计与指标预测,确定了氮气驱气水交替注入开发效果最佳;并优化出气水比、气水交替周期、注气速度、转注时机等参数。所提出的方案能明显改善该油藏开发效果,为杜家台油层及类似水驱油藏的开发调整提供依据。
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| 关 键 词： | 开发效果 氮气驱 最小混相压力 气水交替 |
| 收稿时间： | 2014/7/19 0:00:00 |
| 修稿时间： | 2014/8/19 0:00:00 |
Analysis of Nitrogen injection development effect for water-flooding reservoir |
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| wangz ziji,Yao yuedong,zhou xu,wang jianuan and qiao changfa.Analysis of Nitrogen injection development effect for water-flooding reservoir[J].Science Technology and Engineering,2014,14(34). |
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| Authors: | wangz ziji Yao yuedong zhou xu wang jianuan and qiao changfa |
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| Institution: | Liaohe Oilfield Huanxiling Oil Production Plant,Liaohe Oilfield Huanxiling Oil Production Plant,Liaohe Oilfield Huanxiling Oil Production Plant |
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| Abstract: | This study evaluated the potential for application of nitrogen injection to Dujiatai which is a water-flooding reservoir developing for decades. ECLIPSE PVTi module of simulation was employed to determine N2-oil MMP (Minimum miscibility pressure) which is as a criterion for screening. Then, through nitrogen flooding development scenario design and index prediction of a typical well group, we get the optimal water alternating gas (WAG) scenario. It can obviously increase the reservoir recovery for the next decade, which can be a useful development method for similar water-flooding reservoirs. |
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| Keywords: | nitrogen flooding compositional model MMP WAG |
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