NMR fluid analyzer applying to petroleum industry  

作　　者：Guang-Zhi Liao Wei-Liang Chen Fang-Rong Zong Feng Deng Hua-Bing Liu Bo-Song Wu Wei Liu Zhe Sun Si-Hui Luo 

机构地区：[1]不详

出　　处：《Petroleum Science》2021年第1期54-91,共38页石油科学（英文版）

基　　金：supported by National Natural Science Foundation of China(Grant Nos.21427812,41674137,51974337);National Science and Technology Major Project of China(2017ZX05019002-008);National"111 Project"(B13010);"863 Project"(2013AA064605)。

摘　　要：Tremendous progress of developing nuclear magnetic resonance(NMR)fluid analyzer has been witnessed in the oil industry for last two decades.This device allows extensive and accurate exploration of fluid properties,such as its hydrogen content,composition,viscosity,hydrogen index(HI),mud filtrate invasion,gas to oil ratio,average velocity,velocity distribution etc.,in the situations of in situ downhole or surface Petro-pipelines.In this review article,we focus on the design principle,manufacturing,implementation,methodology and applications of NMR fluid analyzer to oil and gas industry.A detailed description of the state-of-art NMR fluid analyzers was firstly given to exhibit their respective characteristics.With these experiences on hand,we introduced a series of NMR fluid analyzers designed by us at China University of Petroleum-Beijing with continuous optimizations,in terms of magnet construction,antenna layout,circuit design and operating surroundings.These systems discussed in this article have been demonstrated to achieve multiple NMR parameter acquisition when the fluid is in stationary or flowing state.In the end,a prototype was fabricated and validated considering a vast of engineering influences,such as variable temperatures in a large range,high pressure,limited volume,detection efficiency,etc.A particular emphasis of this paper is to expedite the measurement efficiency of the NMR fluid analyzer to reduce the operation costs.This dilemma can be Figured out by upgrading both pulse sequence and observational mode.For different fluid states,two rapid pulse sequences were proposed to sufficiently obtain the multi-dimensional NMR correlation map.Meanwhile,two observational modes were developed to take full advantage of the polarization time,during which the individual antenna was systematically switched.Another domain of interest in this review concerns the applications of this new tool.For stationary fluids case,accurate identification of fluid properties is of great value for scheme building in oil and gas

关 键 词：NMR fluid analyzer Petroleum industry Pulse sequence VISCOSITY FLOW 

分 类 号：TE31[石油与天然气工程—油气田开发工程]