基于X射线源的密度测井近源距研究

周悦; 于华伟; 陈翔鸿; 罗旭; 张丽

doi:10.11889/j.0253-3219.2018.hjs.41.120401

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基于X射线源的密度测井近源距研究

核电子学与仪器 | 更新时间：2021-05-19

- 基于X射线源的密度测井近源距研究
- Study on near detector-source spacing of density logging based on X-ray source
- 核技术 2018年41卷第12期文章编号：120401
- 作者机构：
  
  1.中国石油大学(华东) 青岛 266580
  2.海洋国家实验室海洋矿产资源评价与探测技术功能实验室青岛 266071
  3.中国石油测井有限公司辽河分公司盘锦 124011
  4.山东科技大学泰安 271019
- 作者简介：
  
  [ "周悦, 男, 1994年出生, 2017年毕业于中国石油大学(华东), 现为硕士研究生, 主要研究方向核测井及蒙特卡罗模拟", "ZHOU Yue, male, born in 1994, graduated from China University of Petroleum (Huadong) in 2017, master student, focusing on method for nuclear logging and Monte Carlo simulation" ]
  于华伟, E-mail:yhwlog@163.com YU Huawei, E-mail:yhwlog@163.com
- 基金信息：
  
  国家自然科学基金(41674129);国家重点研发计划(2016YFC0302800);山东省高校科研计划项目(J18KA190);国家科技重大专项(2017ZX05009001);中央高校基本科研业务费(14CX02182A);中央高校基本科研业务费(16CX02039A);中国石油大学教学改革项目(SY-A201405);国家自然科学基金(41704113)
- DOI：10.11889/j.0253-3219.2018.hjs.41.120401
  中图分类号： P631.81
- 收稿日期：2018-09-07，
  
  修回日期：2018-10-22，
  
  纸质出版日期：2018-12-10
- 稿件说明：
移动端阅览
周悦, 于华伟, 陈翔鸿, 等. 基于X射线源的密度测井近源距研究[J]. 核技术, 2018,41(12):120401

Yue ZHOU, Huawei YU, Xianghong CHEN, et al. Study on near detector-source spacing of density logging based on X-ray source[J]. Nuclear techniques, 2018, 41(12): 120401
周悦, 于华伟, 陈翔鸿, 等. 基于X射线源的密度测井近源距研究[J]. 核技术, 2018,41(12):120401 DOI： 10.11889/j.0253-3219.2018.hjs.41.120401.

Yue ZHOU, Huawei YU, Xianghong CHEN, et al. Study on near detector-source spacing of density logging based on X-ray source[J]. Nuclear techniques, 2018, 41(12): 120401 DOI： 10.11889/j.0253-3219.2018.hjs.41.120401.

摘要

利用X射线源替代密度测井中的

137

Cs放射源成为石油测井发展的新趋势。为探究在密度测井中使用较低能量的X射线源替代

137

Cs放射源后的近源距变化，利用蒙特卡罗模拟方法，研究了不同能量X射线源在不同孔隙石灰岩含水地层中所对应的零源距位置，另外根据不同源对应的密度响应灵敏度，分析了近源距区间。研究表明：能量较低的X射线源相比于

137

Cs放射源密度仪器对应的零源距较小，两者密度灵敏度相同时，X射线源的近源距区间更短。

Abstract

Background

It has become a new trend to use X-ray source instead of

137

Cs source in density logging for development of oil logging.

Purpose

This study aims to analyze the near detector-source spacing's change when using a lower energy X-ray source instead of

137

Cs source in density logging.

Methods

Monte Carlo simulation method is used to study the critical detector-source spacing of different energy X-ray sources during the formation of water saturated limestone with different porosity

in addition

the near detector-source spacing is analyzed according to those sensitivities of X-ray sources and

137

Cs source.

Results

Simulation results show that low energy X-ray source's critical detector-source spacing is shorter compared with

137

Cs source's density instrument. When the density sensitivity is the same

the near detector-source spacing of X-ray source is shorter than that of

137

Cs source.

Conclusion

This study provides a theoretical basis for the design of near detector-source spacing of instrument.

关键词

Keywords

references

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