Numerical study on determining formation porosity using a boron capture gamma ray technique and MCNP

被引：15

作者：

Liu, Juntao ^{[1
]}

Zhang, Feng ^{[1
]}

Wang, Xinguang ^{[1
]}

Han, Fei ^{[1
]}

Yuan, Zhelong ^{[1
]}

机构：

[1] China Univ Petr, Sch Geosci, Qingdao 266580, Shandong, Peoples R China

来源：

APPLIED RADIATION AND ISOTOPES | 2014年 / 94卷

基金：

中国国家自然科学基金;

关键词：

Boron lining; Capture gamma ray; Porosity; Monte Carlo simulation;

D O I：

10.1016/j.apradiso.2014.08.013

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Formation porosity can be determined using the boron capture gamma ray counting ratio with a near to far detector in a pulsed neutron-gamma element logging tool. The thermal neutron distribution, boron capture gamma spectroscopy and porosity response for formations with different water salinity and wellbore diameter characteristics were simulated using the Monte Carlo method. We found that a boron lining improves the signal-to-noise ratio and that the boron capture gamma ray counting ratio has a higher sensitivity for determining porosity than total capture gamma. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：266 / 271

页数：6