| 鄂尔多斯盆地苏里格气田中、下二叠统砂岩储层敏感性影响因素分析 |
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| 引用本文： | 曾伟,董明,孔令明,朱日.鄂尔多斯盆地苏里格气田中、下二叠统砂岩储层敏感性影响因素分析[J].天然气勘探与开发,2011,34(3):31-34,37. |
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| 作者姓名： | 曾伟 董明 孔令明 朱日 |
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| 作者单位： | 西南石油大学 |
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| 基金项目： | 四川省重点学科建设项目(编号:SZD0414)的资助 |
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| 摘 要： | 为减小苏里格气田在勘探开发过程中造成的储层损害,针对其中下二叠统砂岩储层的敏感性进行了实验研究,从岩石学特征和孔喉结构特征上分析了储层敏感性影响因素。研究结果表明:储层速敏性弱,与孔喉直径小、粘土矿物微粒直径较大有关;水敏性差异大,与凝灰质杂基含量多少有关;碱敏性弱,高pH值碱液提高储层渗透率与储层中高岭石被强碱溶蚀有关;酸敏性大小取决于酸液类型和储层中方解石及绿泥石含量;应力敏感性强,与储层致密、喉道类型主要为片状喉道有关。根据储层的敏感性,提出了相关的储层保护和改造措施。
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| 关 键 词： | 苏里格气田 储层损害 敏感性 影响因素 保护 改造 |
INFLUENCING FACTORS OF RESERVOIR SENSITIVITY IN MIDDLE AND LOWER PERMIAN SANDSTONE,SULIGE GASFIELD,ORDOS BASIN |
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| ZENG Wei,DONG Ming,KONG Lingming , ZHU Yue..INFLUENCING FACTORS OF RESERVOIR SENSITIVITY IN MIDDLE AND LOWER PERMIAN SANDSTONE,SULIGE GASFIELD,ORDOS BASIN[J].Natural Gas Exploration and Development,2011,34(3):31-34,37. |
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| Authors: | ZENG Wei DONG Ming KONG Lingming ZHU Yue |
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| Affiliation: | ZENG Wei,DONG Ming,KONG Lingming and ZHU Yue(Southwest Petroleum University). |
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| Abstract: | During E & P of Sulige gasfield in Ordos Basin,certain damage is made for some reservoirs.In this study,in order to reduce reservoir damage,an experiment on reservoir sensitivity of Middle and Lower Permian sandstone is carried out,and some influencing factors of sensitivity are analyzed in terms of petrographic and pore-throat structural characteristics.Results show that:(1) velocity sensitivity is weak,which is related to small diameter of pore and throat as well as larger diameter of clay particle;(2) th... |
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| Keywords: | Sulige gasfield formation damage sensitivity influencing factors preservation reform |
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