| 岩石复电阻率Dias模型及其参数求取方法 |
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| 引用本文： | 丁柱,童茂松,潘涛.岩石复电阻率Dias模型及其参数求取方法[J].物探化探计算技术,2005,27(2):135-137. |
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| 作者姓名： | 丁柱 童茂松 潘涛 |
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| 作者单位： | 1. 大庆测井公司研发中心,黑龙江,大庆,163412
2. 大庆石油管理局技术中心,黑龙江,大庆,163453 |
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| 摘 要： | Dias模型是众多描述岩石复电阻率的频散特性模型中的一种,它不但参数少,且可由这些参数导出具有特定物理意义的参数。针对Dias模型参数的求取及反演解的不确定性评价,这里提出了一种模拟退火阻尼最小二乘联合反演方法。该方法首先将参数求解空间离散化,利用模拟退火找到全局最优解区间,然后利用阻尼最小二乘法在解空间进行求解。该方法有效地克服了原来两种方法的反演速度慢、反演结果依赖于初值的缺点,并实现了对反演结果多解性的评价。研究结果表明,对于岩石复电阻率数据的处理解释,Dias模型的使用比传统的Cole模型及其变形更具有潜在的优势。
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| 关 键 词： | 复电阻率 频散模型 反演方法 |
| 文章编号： | 1001-1749(2005)02-0135-03 |
| 修稿时间： | 2004年6月21日 |
THE DIAS MODEL OF ROCK COMPLEX RESISTIVITY AND ITS PARAMETER INVERSION METHOD |
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| DING Zhu,TONG Mao-song,PAN Tao.THE DIAS MODEL OF ROCK COMPLEX RESISTIVITY AND ITS PARAMETER INVERSION METHOD[J].Computing Techniques For Geophysical and Geochemical Exploration,2005,27(2):135-137. |
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| Authors: | DING Zhu TONG Mao-song PAN Tao |
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| Institution: | DING Zhu~1,TONG Mao-song~1,PAN Tao~2 |
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| Abstract: | Dias model is one of the rock complex resisitivity dispersion models and parameters used in or deduced from this model are of definitive physical meanings. A new intergrated inversion method, which combines the simulate annealing with the least square method, is developed to inverse these parameters of Dias model. A simulate annealing procedure is done firstly to narrow the global optimum solution range. Then the definitive solution is obtained by applying the least square method. The new inversion method is aided to analyse the ambiguity of the inversion results and it shows that Dias model is of potential advantage over the traditional ones. |
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| Keywords: | complex resistivity dispersion model inversion |
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