| 合水油田长8储层敏感性及酸化适应性研究 |
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| 引用本文： | 吴大康,吴学庆,李克华,王任芳,兰笛.合水油田长8储层敏感性及酸化适应性研究[J].长江大学学报,2010,7(4):72-75. |
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| 作者姓名： | 吴大康 吴学庆 李克华 王任芳 兰笛 |
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| 作者单位： | 长庆油田公司第一采油技术服务处,陕西,延安,716000;长江大学化学与环境工程学院,湖北,荆州,434023 |
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| 摘 要： | 超低渗储层酸化技术的配方体系存在针对性强的特点,具有对储层造成二次伤害的风险性。在分析合水油田长8储层矿物成分的基础上,开展了储层的敏感性评价试验,研究了盐酸、土酸和CQC-8、CQF-8缓速酸对合水油田长8储层的酸化适应性。溶失率试验结果表明,盐酸的溶失能力较弱,土酸和CQC-8、CQF-8缓速酸的溶失性能可以满足现场要求;岩心酸化试验结果表明,注入缓速酸后,合水油田长8储层岩心渗透率大幅度提高,CQC-8和CQF-8缓速酸的深部酸化改造效果明显。
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| 关 键 词： | 酸化 缓速酸 超低渗透储藏 砂岩储层 配伍性 |
Study on Sensitivity Evaluation and Acidification Adaptability of Chang 8 Reservoir in Heshui Oilfield |
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| WU Da-kang,WUXue-qing LI Ke-hua,WANG Ren-fang,LAN Di.Study on Sensitivity Evaluation and Acidification Adaptability of Chang 8 Reservoir in Heshui Oilfield[J].Journal of Yangtze University,2010,7(4):72-75. |
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| Authors: | WU Da-kang WUXue-qing LI Ke-hua WANG Ren-fang LAN Di |
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| Institution: | WU Da-kang,WUXue-qing(Changqing Oilfield Company,CNPC,Yan'an 716000) LI Ke-hua,WANG Ren-fang,LAN Di(Yangtze University,Jingzhou 434023) |
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| Abstract: | The mineral composition,sensitivity and acidification adaptability of hydrochloric acid,mud acid and retarded acid on Chang 8 reservoir in Heshui oilfield were studied in this paper.Experimental results of dissolve-loss ratio show that the dissolve-loss capability of hydrochloric acid is small,and the dissolve-loss capability of mud acid and CQC-8 or CQF-8 retarded acid can satisfy the requirements of acidification treatment.Core tests show that after injecting CQC-8 or CQF-8 into the cores,its core permeab... |
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| Keywords: | acidification retarded acid low permeability reservoir sand stone reservoir compatibility |
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