| 改善马岭油田开发效果的新途径 |
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| 引用本文： | 赵向宏. 改善马岭油田开发效果的新途径[J]. 石油勘探与开发, 1995, 22(2): 51-54 |
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| 作者姓名： | 赵向宏 |
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| 作者单位： | 长庆石油勘探局勘探开发研究院 |
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| 摘 要： | 本文从研究油层微观孔隙结构出发，揭示了影响马岭油田采液指数下降的主要因素。指出了清防垢，注好水等提高油藏采液指数，改善油田开发效果的新途径，不但对马岭油田有一定的指导作用，而且对其它注水开发油藏也有一定的借鉴值。
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| 关 键 词： | 注水 孔隙 油层 油田注水 驱油 |
FACTORS ACCOUNT FOR THE DECREASE OF THE PRODUCTIVITY INDEX IN MALING OILFIELD AND TECHNIQUES FOR THE IMPROVEMENT OF THE RECOVERY EFFICIENCY. |
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| Zhao Xiang-hong. FACTORS ACCOUNT FOR THE DECREASE OF THE PRODUCTIVITY INDEX IN MALING OILFIELD AND TECHNIQUES FOR THE IMPROVEMENT OF THE RECOVERY EFFICIENCY.[J]. Petroleum Exploration and Development, 1995, 22(2): 51-54 |
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| Authors: | Zhao Xiang-hong |
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| Abstract: | Analyses of microstructure of pores in oil pays revealed that the main factors accounted for the decrease of producitivity index in Maling oilfield might be the scale deposits in pore throats after water-injection, the dilatation of clay minerals, and the migration of fragments of the dilated clay minerals. These factors, along withthe corrosion products of injected water, resulted in the worsenning of the microstructure of pores in oil pays,and the plugging of pore throats near wellbore in oil pays. Consequently, the author suggested that for Scale deposits cleaning and protecting, water injecting properly should be one of the most effective methods to inerease the productivity index and improve the recovery of this oil field. |
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| Keywords: | Water flooding Pore throat Scale deposit Clay mineral Fluid productivity index Maling oilfield |
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