| 秦家屯油田储层的敏感性评价 |
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| 引用本文： | 李永刚.秦家屯油田储层的敏感性评价[J].吉林大学学报(地球科学版),2004(Z1). |
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| 作者姓名： | 李永刚 |
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| 作者单位： | 吉林大学地球探测科学与技术学院 吉林长春130026，中石化东北分公司勘探开发研究院，吉林长春130062 |
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| 基金项目： | 中国石油化工股份公司科技项目(20030017) |
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| 摘 要： | 储层的敏感性评价是研究储层损害机理、保护储层或减小储层损害的依据,是搞好油田注水开发的基础。采用岩心流动实验装置,开展了储层敏感性的室内实验。结果表明秦家屯油田储集层对流体速度表现为弱敏感性,对盐敏表现为中等偏弱盐敏性,对酸表现为无敏感性,随着注水速度的增加,岩心的渗透率也随之增大,并未出现“桥堵”和“卡堵”现象,说明储层中不稳定的固相颗粒含量低,不能堵塞地层,油层增产可采用提高注入速度、酸化等措施,油层水敏为中等偏弱到中等偏强,注水前要注入稳定剂。碱敏表现为弱碱敏或中等碱敏,对该区三次采油作业中,尤其是碱水驱油要特别注意。
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| 关 键 词： | 粘土矿物 敏感性 渗透率 秦家屯油田 |
Estimation of Sensitivity of Reservoir in Qinjiatun Oil Field |
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| LI Yong-gang.Estimation of Sensitivity of Reservoir in Qinjiatun Oil Field[J].Journal of Jilin Unviersity:Earth Science Edition,2004(Z1). |
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| Authors: | LI Yong-gang |
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| Institution: | LI Yong-gang 1,2 |
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| Abstract: | The sensitivity estimation of reservoir is the researching foundation of reservoir damage mechanism, reservoir protection and decreasing reservoir damage. It is also basis of oil field's flood development. Using experimental facility of core fluxion, indoor experiments of reservoir sensitivity have been carried out. The result indicates that the sensitivity of reservoir to fluid velocity is week, to the salinity is moderate or less, and none to the acidity. As the injecting rate is increased, permeability is raised, and there is no bridge blinding. It is indicated that the content of unstable solid-state grain is lower in reservoir. so the production can be improved by more injection or acidization. The sensitivity of water is moderate or less to more strengthen. Stabilization agent should be injected. The sensitivity of alkali is less or moderate. For tertiary recovering in this area, the caustic flooding should be paid attention to. |
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| Keywords: | clay mineral sensitivity permeability Qinjiatun oilfield |
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