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| 蒙脱石与不同浓度KOH溶液作用反应产物的矿物学特征分析 | |
| 引用本文： | 朱云,王浩然,杨晓雪,曹维政,鲁安怀,李艳,王清华,张虓雷,王长秋.蒙脱石与不同浓度KOH溶液作用反应产物的矿物学特征分析[J].岩石矿物学杂志,2011,30(6):1053-1058. |
| 作者姓名： | 朱云 王浩然 杨晓雪 曹维政 鲁安怀 李艳 王清华 张虓雷 王长秋 |
| 作者单位： | 1. 国家地质实验测试中心,北京,100037 2. 北京大学造山带与地壳演化教育部重点实验室,北京大学地球与空间科学学院,北京100871 3. 大庆油田有限责任公司勘探开发研究院,黑龙江大庆,163712 |
| 基金项目： | 大庆油田对外协作计划项目 |
| 摘 要： | 蒙脱石具有强烈亲水性,遇水体积可膨胀至原体积的数倍甚至数十倍,从而造成油气储层的水敏损害,但在强碱条件下蒙脱石可发生结构变化与物相转变,从而使其亲水性降低。本文具体探讨了天然钠基蒙脱石在80℃,0.1 M KOH、0.5 M KOH、1 M KOH溶液中所发生的碱溶反应;并通过XRD、SEM、EDAX等测试手段分析发现,碱溶相变的发生与碱溶液浓度及反应温度密切相关;碱溶相变最终产物主要是微米级纤维状、柱状、颗粒状的菱沸石和麦钾沸石,均为不具膨胀性的架状硅酸盐矿物;最后通过自由膨胀实验证实蒙脱石碱溶产物膨胀性较原矿物显著降低。 |
| 关 键 词： | 蒙脱石 膨胀性 矿物相变 碱溶 缩膨 |
| 收稿时间： | 2011/9/9 0:00:00 |
| 修稿时间： | 2011/10/26 0:00:00 |
Mineralogical characteristics of the products from montmorillonite treated by different concentrations of KOH solution |
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| ZHU Yun,WANG Hao-ran,YANG Xiao-xue,CAO Wei-zheng,LU An-huai,LI Yan,WANG Qing-hu,ZHANG Xiao-lei and WANG Chang-qiu.Mineralogical characteristics of the products from montmorillonite treated by different concentrations of KOH solution[J].Acta Petrologica Et Mineralogica,2011,30(6):1053-1058. | |
| Authors: | ZHU Yun WANG Hao-ran YANG Xiao-xue CAO Wei-zheng LU An-huai LI Yan WANG Qing-hu ZHANG Xiao-lei and WANG Chang-qiu |
| Institution: | ZHU Yun1,WANG Hao-ran2,YANG Xiao-xue2,CAO Wei-zheng3,LU An-huai2,LI Yan2,WANG Qing-hua3,ZHANG Xiao-lei3 and WANG Chang-qiu2 (1.National Research Center for Geoanalysis,Beijing 100037,China.2.Key Laboratory of Orogenic Belts and Crustal Evolution,School of Earth and Space Sciences,Peking University,Beijing 100871,China,3.Exploration and Development Research Institute,PetroChina Daqing Oilfield Co.,Ltd.,Daqing 163712,China) |
| Abstract: | Montmorillonite is a widely distributed clay mineral in the oil and gas basin.When it is encountered with water,its volume can expand by several or tens of times,which can be ascribed to the strong hydrophilic character.Consequently,oil and gas reservoirs might be damaged by its water-sensitive property.In this study,the phase transformation and hydrophilic behaviors of natural Na-smectite were investigated in alkaline solution.The natural smectite was put in solution of 0.1 M KOH,0.5 M KOH and 1 M KOH at 8... |
| Keywords: | montmorillonite expanding mineral transformation alkali treatment reducing swelling |
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