| 粘土调剖剂对中低渗透层的污染及其解除方法 |
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| 引用本文： | 张贵才,孙铭勤,焦翠,赵福麟,林伟民,陈锋,孙江城.粘土调剖剂对中低渗透层的污染及其解除方法[J].中国石油大学学报(自然科学版),1994(Z1). |
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| 作者姓名： | 张贵才 孙铭勤 焦翠 赵福麟 林伟民 陈锋 孙江城 |
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| 作者单位： | 山东东营石油大学开发系，中原石油勘探局采油五厂 |
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| 摘 要： | 用动滤失仪评价了粘土调剖剂对中低渗透层的污染情况。研究表明，注入压力越高。中低渗透层的污染越严重；地层的非均质程度越高，中低渗透层的污染越小．解除污染的方法有返排法和土酸酸化法。试验证明，返排法不能从根本上解除污染，常规土酸酸化方法的效果较好。
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| 关 键 词： | 粘土 调剖剂 污染 |
CONTAMINATION OF CLAY PROFILE CONTROL AGENTS TO THE FORMATION WITH MIDDLE AND LOW PERMEABILITY AND REMOVING METHOD |
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| Zhang Guicai,Sun Mingqin,Jiao Cui, Zhao Fulin.CONTAMINATION OF CLAY PROFILE CONTROL AGENTS TO THE FORMATION WITH MIDDLE AND LOW PERMEABILITY AND REMOVING METHOD[J].Journal of China University of Petroleum,1994(Z1). |
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| Authors: | Zhang Guicai Sun Mingqin Jiao Cui Zhao Fulin |
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| Abstract: | This paper deals with contamination situation of clay profile control agents to the for-mation with middle and low permeability with dynamic filtration device. Research result shows thehigher injection pressure,the more serious contamination of the formation with middle and low perme-ability. The higher heterogenety of the formation the lower contamination with middle and low perme-ability. The methods of removing contamination are back washing and mud acid treatment.The exper-iment has proved that the method of back washing can not perfectly remove contamination. Themethod of ordinary mud acid treatment is efficient. |
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| Keywords: | lay Profile control agent Contamination |
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