| 塔里木盆地塔中地区海相烃源岩测井评价方法 |
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| 引用本文： | 雷涛,周文,杨艺,邓虎成,张光辉,赵安坤. 塔里木盆地塔中地区海相烃源岩测井评价方法[J]. 岩性油气藏, 2010, 22(4): 89-94,99 |
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| 作者姓名： | 雷涛 周文 杨艺 邓虎成 张光辉 赵安坤 |
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| 作者单位： | [1]成都理工大学能源学院 [2]成都理工大学＂油气藏地质及开发工程＂国家重点实验室 [3]成都理工大学信息管理学院 |
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| 基金项目： | 本文为中国石化海相前瞻性重点项目 |
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| 摘 要： | 测井评价烃源岩具有分析费用低、纵向连续性好、实用性强等特点。文中以烃源岩理论模型和有机质物理性质为基础,分析了塔中地区奥陶系烃源岩的常规测井响应特征。研究发现该区烃源岩的弹性参数、铀钍含量比、ΔGR等3个参数与有机质丰度之间具有很好的相关性,并建立了定量识别烃源岩的声波-电阻率和密度-电阻率2类交会图版。在有机质丰度评价方面,用ΔlogR法和BP网络法2种方法相互印证,较好地反映出烃源岩垂向非均质性,为有效烃源岩划分提供了较为可靠的依据。
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| 关 键 词： | 海相烃源岩 测井响应 有机质丰度 奥陶系 塔里木盆地 |
Logging evaluation method for marine source rocks in middle Tarim Basin |
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| LEI Tao,ZHOU Wen,YANG Yi,DENG Hu-cheng,ZHANG Guang-hui,ZHAO An-kun. Logging evaluation method for marine source rocks in middle Tarim Basin[J]. Northwest Oil & Gas Exploration, 2010, 22(4): 89-94,99 |
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| Authors: | LEI Tao ZHOU Wen YANG Yi DENG Hu-cheng ZHANG Guang-hui ZHAO An-kun |
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| Affiliation: | 1. College of Energy Resources, Chengdu University of Technology, Chengdu 610059, China; 2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, China; 3. College of Information Management, Chengdu University of Technology, Chengdu 610059, China) |
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| Abstract: | The evaluation of source rocks by logging has the characteristics of low-cost, good vertical continuity and practicability. Based on physical characteristics of organic matter and theoretical model of source rocks,the conventional log response characteristics of Ordovician source rocks in middle Tarim Basin are analyzed. The result shows that the organic matter abundance is closely related to the elastic parameters, uranium and thorium content ratio and ΔGR, and the crossplot between acoustic and resistivity and crossplot between density and resistivity are established to recognize source rocks quantitatively. In the aspect of organic matter abundance evaluation, ΔlogR method and BP network method are used to describe the vertical heterogeneity of source rocks, which provides a reliable basis for dividing source rocks effectively. |
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| Keywords: | marine source rocks log response organic matter abundance Ordovician Tarim Basin |
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