测井技术2016，Vol.40Issue(5)：537-540,555,5.DOI:10.16489/j.issn.1004-1338.2016.05.004
井下在线核磁共振流体分析实验方法
Measurements for Online Down-hole NMR Fluid Analyzer
摘要
Abstract
This paper tries to develop measurement methods for the multi‐functional down‐hole nuclear magnetic resonance fluid analyzer .The aim is to monitor the pollution of the formation fluids and quantitatively evaluate NM R characteristics of the fluids at reservoir conditions .Based on the designed prototype ,measurement methods are emphatically researched .The single coil model is built ,and it studies the influence of flowing fluid on the longitudinal relaxation time from the physical mechanism of signal detection .A kind of measuring and processing method is developed for the diffusion coefficient .In this article experiments with the prototype sensor are done and verified . T he online measurements are realized to obtain longitudinal relaxation time (flowing fluids) ,transverse relaxation time and diffusion coefficient (static fluids) .关键词
核磁共振/流体分析/在线测量/纵向弛豫时间/横向弛豫时间/扩散系数Key words
nuclear magnetic resonance(NMR)/fluid analyzer/online measurement/longitudinal relaxation time/transverse relaxation time/diffusion coefficient分类
天文与地球科学引用本文复制引用
吴保松,肖立志,刘洛夫,李梦春,廖广志,贾子健..井下在线核磁共振流体分析实验方法[J].测井技术,2016,40(5):537-540,555,5.基金项目
国家863项目（2013AA064605）；国家科技重大专项（2011ZX05020-001）；中国博士后科学基金 （）
