| 利用常规测井资料基于岩石物理和多矿物分析反演横波速度 |
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| 引用本文： | 邵才瑞,印兴耀,张福明,宋明水.利用常规测井资料基于岩石物理和多矿物分析反演横波速度[J].地球科学,2009(4). |
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| 作者姓名： | 邵才瑞 印兴耀 张福明 宋明水 |
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| 作者单位： | 中国石油大学地球资源与信息学院;中石化胜利油田有限公司勘探项目管理部; |
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| 基金项目： | 中石化“十一·五”重大科技攻关项目 |
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| 摘 要： | 测井横波速度是测井地震联合反演的重要标定参数.为克服大量老井缺少横波速度资料和现有横波速度估算方法的不足,基于孔隙介质岩石物理理论,通过常规测井资料求取多矿物组分,利用VRH模型求得地层的等效弹性模量;最后利用纵波速度作为约束条件,根据Biot-Gassmann方程得到地层横波速度.计算结果与实测结果对比表明,平均相对误差限在5%左右,与Xu-White模型相比,该方法物理意义更为明确,使用更简便,计算精度提高一倍左右.
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| 关 键 词： | 岩石物理 测井资料 多矿物分析 Biot-Gassmann方程 横波速度 地球物理 |
Shear Wave Velocity Inversion with Routine Well Logs Based on Rock Physics and Multi-Mineral Analysis |
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| SHAO Cai-rui,YIN Xing-yao,ZHANG Fu-ming,SONG Ming-shui .Faculty of Geo-Resource & Information,China University of Petroleum,Dongying.Shear Wave Velocity Inversion with Routine Well Logs Based on Rock Physics and Multi-Mineral Analysis[J].Earth Science-Journal of China University of Geosciences,2009(4). |
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| Authors: | SHAO Cai-rui YIN Xing-yao ZHANG Fu-ming SONG Ming-shui Faculty of Geo-Resource & Information China University of Petroleum Dongying |
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| Institution: | SHAO Cai-rui1,YIN Xing-yao1,ZHANG Fu-ming1,SONG Ming-shui2 1.Faculty of Geo-Resource & Information,China University of Petroleum,Dongying 257061 2.Department of Exploration Administration,Shengli Oilfield,SINOPEC,Dongying 257001 |
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| Abstract: | The shear wave velocity of well log is an important parameter for mutual inversion,but lots of wells are short of this value.As present estimation method can't calculate the shear velocity precisely,based on rock physics,using VRH model this paper firstly calculates the equivalent elastic modulus via multi-mineral analysis from routine well logs,and then by taking compressional velocity as a constraint,calculates the shear wave velocity based on Biot-Gassmann equations.The method has clearer physics meaning... |
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| Keywords: | rock physics well logs data multi-mineral analysis Biot-Gassmann equation shear wave velocity geophysics |
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