Numerical simulation of C/O spectroscopy in logging by Monte-Carlo method

LI Guijie ZHANG Jianmin

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Numerical simulation of C/O spectroscopy in logging by Monte-Carlo method

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- Numerical simulation of C/O spectroscopy in logging by Monte-Carlo method
- NUCLEAR TECHNIQUES Issue 6, (2007)
- 作者机构：
  
  1. 西安交通大学
  2. 西安交通大学,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： P631.81
- Published：01 June 2007
- 稿件说明：
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[1]李贵杰,张建民.碳氧比γ能谱测井的蒙特卡罗方法数值模拟[J].核技术,2007(06):516-521.

LI Guijie ZHANG Jianmin. Numerical simulation of C/O spectroscopy in logging by Monte-Carlo method[J]. Nuclear techniques, 2007, (6): 516-521.
[1]李贵杰,张建民.碳氧比γ能谱测井的蒙特卡罗方法数值模拟[J].核技术,2007(06):516-521. DOI：

LI Guijie ZHANG Jianmin. Numerical simulation of C/O spectroscopy in logging by Monte-Carlo method[J]. Nuclear techniques, 2007, (6): 516-521. DOI：

摘要

本文采用蒙特卡罗（MC）方法对碳氧比（C/O）γ能谱测井进行了数值模拟。模拟谱和实测谱吻合得很好

精度达到了工程应用的要求。计算并分析了地层含油饱和度、井液持油率、套管外径和水泥环厚度等参数对碳氧比值影响的规律。为了获得更准确的谱分析结果

本文针对C/O非弹γ计数谱提出了新的谱处理方法

并进行了谱分析

谱分析结果与地层和井眼的实际情况相一致。这些规律和方法可供C/O测井仪器的刻度以及测井解释作参考。

Abstract

Numerical simulation of ratio of C/O spectroscopy in logging by Monte-Carlo method is made in this paper. Agree well with the measured spectra

the simulated spectra can meet the requirement of logging practice. Various kinds of C/O ratios affected by different formation oil saturations、borehole oil fractions

casing sizes and concrete ring thicknesses are investigated. In order to achieve accurate results of processing the spectra

this paper presents a new method for unfolding the C/O inelastic gamma spectroscopy

and analysis for the spectra using the method

The result agrees with the fact. These rules and method can be used as calibrating tools and logging interpretation.

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