| 辽河东部凹陷火成岩地层测井响应特征研究 |
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| 引用本文： | 李潮流,闫玉明. 辽河东部凹陷火成岩地层测井响应特征研究[J]. 测井技术, 2005, 29(6): 531-533 |
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| 作者姓名： | 李潮流 闫玉明 |
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| 作者单位： | 中国石油勘探开发研究院廊坊分院,河北,廊坊,065007;中国石油勘探开发研究院研究生部,北京,100083;中国石油华北油田二连分公司地质研究所,内蒙古,锡林浩特,026017 |
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| 摘 要： | 根据辽河东部凹陷火成岩岩心全岩分析及X衍射实验结果,利用岩石学中常用的CIPW方法计算出火成岩矿物组成,以此为基础重点分析了不同类型火成岩因矿物组成不同而具有不同的测井响应特征,其中粗面岩因富含钾长石而具有极高伽马值,凝灰岩因富含方沸石而具有低伽马值、高中子值特征,玄武岩和辉绿岩均具有低伽马值、高密度值和低时差值特征.结合岩心观察结果建立了利用常规测井资料识别划分4种主要类型火成岩岩性的方法模型.实际应用结果表明该方法具有很好的适用性.
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| 关 键 词： | 测井响应 复杂岩性 火成岩地层 辽河盆地 |
| 文章编号： | 1004-1338(2005)06-0531-03 |
| 收稿时间： | 2005-07-28 |
| 修稿时间： | 2005-07-28 |
Research on Log Responses of Igneous Rock in Eastern Seg, Liaohe Basin |
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| LI Chao-liu,YAN Yu-ming. Research on Log Responses of Igneous Rock in Eastern Seg, Liaohe Basin[J]. Well Logging Technology, 2005, 29(6): 531-533 |
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| Authors: | LI Chao-liu YAN Yu-ming |
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| Affiliation: | l. Langfang Branch , Institute of Petroleum Exploration and Development, PetroChina, Langfang, Hebei 065007,China; 2, Postgraduate Department, Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083,China; 3. Geology Institute, Erlian Branch of Huabei Oilfield, PetroChina, Xilinhaote, Neimenggu 026017, China |
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| Abstract: | The author applies the method of CIPW to calculate the minerals volume distribution of igneous rock from datum of complete core analysis in the Eastern Seg of Liaohe basin.Based on the computation result and X-ray diffraction result,discussed is the reason that leads to specific log responses at length.Trachite has higher GR value due to it's high content of potassium feldspar.Tuff has lower GR value and higher neutron value.Both Basalt and Diabase are characterized by low GR value,high density and low travel time.A model is presented to distinguish four different kinds of lithologies based on general logs.The model is verified by two cases study,which shows that the model presented is practical. |
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| Keywords: | log response complex lithology igneous rock formation Liaohe basin |
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