| 基于等效介质理论分析川中低孔砂岩的骨架结构分析(英文) |
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| 引用本文： | 晏信飞,姚逢昌,曹宏,巴晶,胡莲莲,杨志芳.基于等效介质理论分析川中低孔砂岩的骨架结构分析(英文)[J].应用地球物理,2011,8(3):163-170. |
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| 作者姓名： | 晏信飞 姚逢昌 曹宏 巴晶 胡莲莲 杨志芳 |
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| 作者单位： | 中国石油勘探开发研究院物探技术研究所;中国石油天然气股份有限公司地球物理重点实验室;中国地质大学(北京); |
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| 基金项目： | supported by the National Natural Foundation of China (No. 41104066); the Basic Research Programs of CNPC during the 12th Five-Year Plan Period (No. 2011A-3601); the Major State Basic Research Development Program of China (No. 2007CB209505); RIPED Young Innovation Foundation (No. 2010-A-26-01) |
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| 摘 要： | 川中广安地区的致密含气砂岩储层具有分布广,丰度低的特点。采自该地区的砂岩样本孔隙度普遍偏低,孔隙连通性差。本文采用Mori-Tanaka模型分析致密砂岩样本的波速观测数据,基于理论与实验分析,给出了该地区砂岩骨架的物理模型。通过经验关系获取基质模量,将实验数据与Mori-Tanaka模型在不同孔隙形态时的预测值进行对比,结果显示实验数据与低纵横比的软孔模型比较接近。综合考虑基质模量和孔隙形态变化的影响,分析表明在矿物成分变化不大的情况下,样本的等效孔隙纵横比随孔隙度增加有上升的趋势。
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| 关 键 词： | 致密砂岩 干岩石骨架 Mori-Tanaka模型 孔隙纵横比 包体 |
Analyzing the mid-low porosity sandstone dry frame in central Sichuan based on effective medium theory |
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| Xin-Fei Yan,Feng-Chang Yao,Hong Cao,Jing Ba,Lian-Lian Hu,Zhi-Fang Yang.Analyzing the mid-low porosity sandstone dry frame in central Sichuan based on effective medium theory[J].Applied Geophysics,2011,8(3):163-170. |
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| Authors: | Xin-Fei Yan Feng-Chang Yao Hong Cao Jing Ba Lian-Lian Hu Zhi-Fang Yang |
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| Institution: | Yan Xin-Fei 1,2,Yao Feng-Chang 1,Cao Hong 1,Ba Jing 1,Hu Lian-Lian 3,and Yang Zhi-Fang 1,21.Research Institute of Petroleum Exploration and Development,Beijing 100083,China.2.Key Laboratory of Geophysics,PetroChina,China.3.China University of Geosciences (Beijing),China. |
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| Abstract: | Tight gas sandstone reservoirs in Guang'an are characterized by wide distribution and low abundance.Sandstone samples from this area usually have low porosity and poor connectivity.We analyze the observed velocity data of tight sandstone samples with the MoriTanaka model,and give the sandstone framework physical model in this area based on theory and experiment analysis.The matrix modulus was obtained by an empirical relationship and then the experiment data were compared with the values predicted by the Mo... |
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| Keywords: | tight sandstone dry frame Mori-Tanaka model pore aspect ratio inclusion |
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