岩石核磁共振分析仪采集参数设置优化  

Optimization of acquisition parameters for rock nuclear magnetic resonance analyzer

作　　者：刘景东 邹海霞 刘俊田 王奇 徐建红 LIU Jingdong;ZOU Haixia;LIU Juntian;WANG Qi;XU Jianhong(Tuha Oilfield Company,PetroChina,Hami,Xinjiang 839009,China)

机构地区：[1]中国石油吐哈油田分公司

出　　处：《石油地质与工程》2019年第5期50-53,共4页Petroleum Geology and Engineering

基　　金：国家科技重大专项“重点盆地致密油资源潜力、甜点区预测与关键技术应用”(2016ZX05046–006);中国石油重大科技专项“吐哈探区油气接替领域勘探关键技术研究与应用”(2017E–04–04)

摘　　要：岩石核磁共振分析仪采集参数需要根据不同的储层性质进行针对性优化,以满足研究需要,目前关于采集参数优化方案的设置存在诸多不确定性,且参数设置的合适与否直接影响仪器对核磁共振信号采集的质量,进而影响核磁共振分析评价的结果,需要深入研究探讨。为此,通过对扫描次数、回波间隔、回波个数及等待时间4个参数进行实验研究,结合理论对比分析,揭示各采集参数的设置对核磁共振分析结果的影响,并提出了采集参数设置优选的一般原则,确定了UNIQ–PMRⅡ型岩石核磁共振分析仪采集参数设置优化的具体方案。The acquisition parameters of rock nuclear magnetic resonance(NMR) analyzer need to be optimized according to different reservoir properties in order to meet the research needs. There are many uncertainties in the setting of the optimization scheme of acquisition parameters at present, and the appropriateness of parameter setting directly affects the quality of the acquisition of NMR signals by the instrument, and further affects the results of NMR analysis and evaluation. Therefore, an experimental study was conducted on four parameters: scanning times, echo intervals, echo numbers and waiting time. Combined with the theory analysis, the acquisition parameters setting on the result of nuclear magnetic resonance(NMR) analysis are revealed, and the acquisition of general principles of parameter optimization have been put forward, and the specific scheme of optimizing the setting of acquisition parameters for UNIQ-PMR II rock NMR analyzer is determined.

关 键 词：采集参数 核磁共振 岩石分析 储层性质 

分 类 号：P631.2[天文地球—地质矿产勘探]