公开(公告)号：US08311744B2

公开(公告)日：2012-11-13

申请号：US12764422

申请日：2010-04-21

申请人： Alfred Khisamutdinov ,  Mikhail Fedorin ,  Richard Pemper ,  Xiaogang Han ,  Gary A. Feuerbacher ,  David Jacobi ,  Brian J. LeCompte ,  Freddy E. Mendez ,  John M. Longo

发明人： Alfred Khisamutdinov ,  Mikhail Fedorin ,  Richard Pemper ,  Xiaogang Han ,  Gary A. Feuerbacher ,  David Jacobi ,  Brian J. LeCompte ,  Freddy E. Mendez ,  John M. Longo

IPC分类号： G06F19/00 ,  G01V5/00

CPC分类号： E21B49/00 ,  E21B47/1015 ,  G01V5/101

摘要： A method for estimating a lithotype of an earth formation, the method includes: obtaining at least two different energy spectra of radiation received from the earth formation using the logging tool, each energy spectrum having at least one of a natural gamma-ray spectrum, a fast neutron-induced inelastic spectrum, and a thermal neutron induced capture spectrum; establishing at least one geochemically-based constraint related to elemental spectral yields to be determined; determining the elemental spectral yields from the at least two different energy spectra by decomposing the at least two different energy spectra over weighted sum of monoelemental standards wherein at least one weight is constrained by the at least one geochemically-based constraint and each weight represents a proportion of one monoelemental standard; converting the elemental spectral yields to elemental concentrations; and using a classifier to receive the elemental concentrations as input and to provide a lithotype as output.

摘要翻译： 一种用于估计地球岩石类型的方法，所述方法包括：使用测井工具获得从地层接收的辐射的至少两个不同能量谱，每个能谱具有自然伽马射线谱， 快中子诱导的非弹性光谱和热中子诱导的捕获光谱; 建立至少一个与确定基本光谱产量相关的基于地球化学的约束; 通过在至少一个重量受至少一个基于地球化学的约束约束的至少一个重量约束下分解至少两个不同的能量谱，通过分解至少两个不同的能量谱来确定来自至少两个不同的能量谱的元素光谱产量，并且每个权重表示比例 的一个元素标准; 将元素光谱产量转化为元素浓度; 并且使用分类器来接收元素浓度作为输入，并提供作为输出的光刻类型。

公开(公告)号：US20100312479A1

公开(公告)日：2010-12-09

申请号：US12764422

申请日：2010-04-21

申请人： Alfred Khisamutdinov ,  Mikhail Fedorin ,  Richard Pemper ,  Xiaogang Han ,  Gary A. Feuerbacher ,  David Jacobi ,  Brian J. LeCompte ,  Freddy E. Mendez ,  John M. Longo

发明人： Alfred Khisamutdinov ,  Mikhail Fedorin ,  Richard Pemper ,  Xiaogang Han ,  Gary A. Feuerbacher ,  David Jacobi ,  Brian J. LeCompte ,  Freddy E. Mendez ,  John M. Longo

IPC分类号： G06F19/00 ,  G01V5/10 ,  G01V5/06

CPC分类号： E21B49/00 ,  E21B47/1015 ,  G01V5/101

摘要： A method for estimating a lithotype of an earth formation, the method includes: obtaining at least two different energy spectra of radiation received from the earth formation using the logging tool, each energy spectrum having at least one of a natural gamma-ray spectrum, a fast neutron-induced inelastic spectrum, and a thermal neutron induced capture spectrum; establishing at least one geochemically-based constraint related to elemental spectral yields to be determined; determining the elemental spectral yields from the at least two different energy spectra by decomposing the at least two different energy spectra over weighted sum of monoelemental standards wherein at least one weight is constrained by the at least one geochemically-based constraint and each weight represents a proportion of one monoelemental standard; converting the elemental spectral yields to elemental concentrations; and using a classifier to receive the elemental concentrations as input and to provide a lithotype as output.

摘要翻译： 一种用于估计地球岩石类型的方法，所述方法包括：使用测井工具获得从地层接收的辐射的至少两个不同能量谱，每个能谱具有自然伽马射线谱， 快中子诱导的非弹性光谱和热中子诱导的捕获光谱; 建立至少一个与确定基本光谱产量相关的基于地球化学的约束; 通过在至少一个重量受至少一个基于地球化学的约束约束的至少一个重量约束下分解至少两个不同的能量谱，通过分解至少两个不同的能量谱来确定来自至少两个不同的能量谱的元素光谱产量，并且每个权重表示比例 的一个元素标准; 将元素光谱产量转化为元素浓度; 并且使用分类器来接收元素浓度作为输入，并提供作为输出的光刻类型。