| 油气储层自生高岭石发育特点及其对物性的影响 |
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| 引用本文： | 曹剑,张义杰,胡文瑄,张越迁,唐勇,姚素平,陶国亮.油气储层自生高岭石发育特点及其对物性的影响[J].矿物学报,2005,25(4):367-373. |
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| 作者姓名： | 曹剑 张义杰 胡文瑄 张越迁 唐勇 姚素平 陶国亮 |
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| 作者单位： | 1. 内生金属矿床成矿机制研究国家重点实验室,南京大学,地球科学系,江苏,南京,210093
2. 中国石油,新疆油田分公司,勘探开发研究院,新疆,克拉玛依,834000 |
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| 基金项目： | 973项目（2005CB422103）;“十五”国家科技攻关项目（2003BA613A-03） |
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| 摘 要： | 以准噶尔盆地腹部侏罗系砂岩油气储层为例，在野外与岩芯观测的基础之上，通过显微和扫描电镜鉴定，并结合粉末X射线衍射和电子探针成分分析，发现有大量自生高岭石发育于储层长石溶蚀后的孔隙中，可以很少或大量原地沉淀，使得储层物性变好或变差。这些自生高岭石是含油气酸性流体与砂岩中碱性长石发生水岩反应的产物，在油源断裂附近的中粒一中粗粒砂岩层中，含油气流体活动强度大、渗流速度较高，高岭石易于迁移至别处．储层物性得到改善．反之高岭石则倾向于原地沉淀．储层物性变差。
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| 关 键 词： | 高岭石 储层物性 含油气流体 水岩反应 准噶尔盆地 |
| 文章编号： | 1000-4734（2005）04-0367-07 |
| 收稿时间： | 2005-05-03 |
| 修稿时间： | 2005年5月3日 |
DEVELOPING CHARACTERISTICS OF KAOLINITE IN CENTRAL JUNGGAR BASIN AND THEIR EFFECT ON THE RESERVOIR QUALITY |
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| CAO Jian,ZHANG Yi-jie,HU Wen-xuan,ZHANG Yue-qian,TANG Yong,YAO Su-ping,TAO Guo-liang.DEVELOPING CHARACTERISTICS OF KAOLINITE IN CENTRAL JUNGGAR BASIN AND THEIR EFFECT ON THE RESERVOIR QUALITY[J].Acta Mineralogica Sinica,2005,25(4):367-373. |
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| Authors: | CAO Jian ZHANG Yi-jie HU Wen-xuan ZHANG Yue-qian TANG Yong YAO Su-ping TAO Guo-liang |
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| Institution: | 1. State Key Laboratory for Mineral Deposits Research, Department of Ewth Sciences, Nanjing 210093, China; 2. Research lnstitute of Exploration and Devdopment, Xinjiang Oilfield Company,PetoChina,Karamay 834000,China |
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| Abstract: | By means of core drilling and micro-observation, SEM, X-ray and EPMA analysis, it has been confirmed that a large amount of diagenetic kaolinite is developed in the Jurassic feldspar sandstone reservoirs, central Junggar Basin. It could be a little and much developed in sandstone solution pores, indicating it is a possible key factor affecting the quality of reservoir rocks. The kaolinite resulted from petroleum- beating fluid and sandstone alkalescence feldspar interaction. If the reservoir is located near the thrust hydrocarbon fault and the reservoir sandstone is coarse-grained, only a little kaolinite would be precipitated and the quality of reservoir rocks should be improved. On the other hand, when an opposite situation is to encountered, the kaolinite should be extensively developed in the solution pores, debasing the quality of reservoir rocks. |
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| Keywords: | kaolinite quality of reservoir rocks petroleum-bearing fluid water-rock interaction Junggar Basin |
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