|
|||||
|
|
| 球管孔隙模型的约束寻优及应用 | |
| 引用本文： | 刘堂晏,周灿灿,马在田,刘国强.球管孔隙模型的约束寻优及应用[J].同济大学学报(自然科学版),2006,34(11):1464-1469. |
| 作者姓名： | 刘堂晏 周灿灿 马在田 刘国强 |
| 作者单位： | 1. 同济大学,海洋地质国家重点实验室,上海,200092;油气资源与勘探技术教育部重点实验室,湖北,荆州,434023 2. 中国石油勘探开发科学研究院,测井遥感研究所,北京,100083 3. 同济大学,海洋地质国家重点实验室,上海,200092 |
| 基金项目： | 中国石油天然气集团公司资助项目;教育部重点实验室基金 |
| 摘 要： | 球管模型考虑了球孔隙和管形孔隙在不同组合形式下具有的核磁共振特征，对其进一步改进，提出带有约束寻优条件的球管孔隙模型，并用正演方法实现了对岩石孔隙结构的寻优分析．研究表明，球管孔隙模型在表面积约束、体积约束及比表面约束下的孔隙结构变化几乎是等效的．应用带有约束寻优条件的球管模型分析真实岩芯的核磁共振实验数据，得到了真实岩芯孔隙结构的最近似描述矩阵，并指出了岩石理想的孔隙结构形态． |
| 关 键 词： | 孔隙结构 正演模型 核磁共振 优化 弛豫 |
| 文章编号： | 0253-374X（2006）11-1464-06 |
| 收稿时间： | 02 28 2005 12:00AM |
| 修稿时间： | 2005-02-28 |
Restricted and Optimized Conditions of Sphere-Cylinder Model and Its Applications |
|
| LIU Tangyan,ZHOU Cancan,MA Zaitian,LIU Guoqiang.Restricted and Optimized Conditions of Sphere-Cylinder Model and Its Applications[J].Journal of Tongji University(Natural Science),2006,34(11):1464-1469. | |
| Authors: | LIU Tangyan ZHOU Cancan MA Zaitian LIU Guoqiang |
| Institution: | 1. State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China; 2. Key Laboratory of Exploration Technologies for Oil and Gas Resources of the Ministry of Education, Jingzhou 434023, China; 3. Logging and Remoting Sensor Institute, Petro China,Beijing 100083, China |
| Abstract: | The paper presents an improved sphere-cylinder model to simulate pore structure in true rock.The sphere-cylinder model simulates nuclear magnetic resonance(NMR) characters when spherical pore and cylindrical pore are linked in various ways.In this paper,the sphere-cylinder model is ameliorated firstly with restricted & optimized conditions,and then the optimization evaluations of pore structure are conducted on the basis of the forward model.Research shows that the restricted conditions in surface area,volume and surface-to-volume ratio are almost identical for the sphere-cylinder model.After the sphere-cylinder model with restricted-optimized conditions is employed for core NMR measurements,the matrix that best characterizes the pore structures in core is obtained,and also the ideal pore structure of the core is pointed out. |
| Keywords: | pore structure forward model nuclear magnetic resonance optimization relaxation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |