Two-dimensional (2D) NMR logging activation sets are acquisition means aiming at obtaining specific formation information, affecting the adaptability of NMR instruments to different types of reservoirs and the reliability of the original data. In this work, a software with the visualization function for designing 2D NMR logging activation sets was developed using the C# language, based on the component elements and working mechanism of activation. The software supported the design of activation sets for 2D NMR logging and NMR core analyzer. Meanwhile, the software provided three kinds of parameter editing methods, observation mode optimization and graphical display functions, and thus realized flexible adjustment of the activation sets. It solved the problems in the former mainstream 2D NMR logging activation sets, such as low signal-to-noise ratio of the raw data, incomplete loading of fluid relaxation characteristics due to inadequately fixed acquisition parameters and inflexible adjustment etc. In addition, the software also provided outputs for acquisition parameters and acquisition timing.
[1] FAN Y R, NI Z G, DENG S G, et al. Experimental study on NMR measurement parameters and reservoir properties[J]. Petroleum Geology & Experiment, 2005, 27(6):624-626. 范宜仁, 倪自高, 邓少贵, 等. 储层性质与核磁共振测量参数的实验研究[J]. 石油实验地质, 2005, 27(6):624-626.
[2] HE Y D, MAO Z Q, XIAO L Z, et al. An improved method of using NMR T2 distribution to evaluate pore size distribution[J]. Chinese J Geophys, 2005, 48(2):373-378. 何雨丹, 毛志强, 肖立志, 等. 核磁共振T2分布评价岩石孔径分布的改进方法[J]. 地球物理学报, 2005, 48(2):373-378.
[3] NING C Q. Direct hydrocarbon identification using calculated T1 from dual wait-time nuclear magnetic resonance logging[J]. Well Logging Technology, 2001, 25(2):123-126宁从前. 用双Tw核磁共振测井计算T1直接识别油气层的方法[J]. 测井技术, 2001, 25(2):123-126.
[4] SUN B Q, DUNN K J. Probing the internal field gradients of porous media[J]. Phys Rev E Stat Nonlin Soft Matter Phys, 2002, 65(1):051309.
[5] HÜRLIMANN M D, VENKATARAMANAN L. Quantitative measurement of two-dimensional distribution functions of diffusion and relaxation in grossly inhomogeneous fields[J]. J Magn Reson, 2002, 157(1):31-42.
[6] SONG Y Q, VENKATARAMANAN L, HÜRLIMANN M D, et al. T1-T2 correlation spectra obtained using a fast two-dimensional Laplace inversion.[J]. J Magn Reson, 2002, 154(2):261-268.
[7] 邓克俊. 核磁共振测井理论及应用[M]. 青岛:中国石油大学出版社, 2010.
[8] XIE R H, X L Z. The (T2, D) NMR logging method for fluids characterization[J]. Chinese J Geophys, 2009, 52(9):2410-2418. 谢然红, 肖立志. (T2, D)二维核磁共振测井识别储层流体的方法[J]. 地球物理学报, 2009, 52(9):2410-2418.
[9] XIE R H, XIAO L Z, LU D W. (T2, T1) two-dimensional NMR method for fluid typing[J]. Well Logging Technology, 2009, 33(1):26-31. 谢然红, 肖立志, 陆大卫. 识别储层流体的(T2, T1)二维核磁共振方法[J]. 测井技术, 2009, 33(1):26-31.
[10] 谢然红, 肖立志. (T2,T1/T2)二维核磁共振识别天然气储层的方法研究[C]. 西安:中国石油学会测井年会, 2009.
[11] HU F L, ZHOU C C, LI C L, et al. Fluid identification method based on 2D diffusion-relaxation nuclear magnetic resonance (NMR)[J]. Petrol Explor Dev, 2012, 39(5):552-558. 胡法龙, 周灿灿, 李潮流, 等. 基于弛豫-扩散的二维核磁共振流体识别方法[J]. 石油勘探与开发, 2012, 39(5):552-558.
[12] HURLIMANN M D, FLAUM M, VENKATARAMANAN L, et al. Diffusion-relaxation distribution functions of sedimentary rocks in different saturation states[J]. Magn Reson Imaging, 2003, 21(3):305-310.
[13] FLAUM M, CHEN J, HIRASAKI G J. NMR diffusion editing for D-T2 maps:Application to recognition of wettability change[J]. Petrophysics, 2004, 46(2):113-123.
[14] SUN B, DUNN K, BILODEAU B J, et al. Two-Dimensional NMR Logging And Field Test Results[C]//SPWLA 45th Annual Logging Symposium, Noordwijk, Holland, 2004.
[15] SUN B Q, DUNN K J. Two-dimensional nuclear magnetic resonance petrophysics[J]. Magn Reson Imaging, 2005, 23(2):259-262.
[16] ZHANG S M, ZHANG S N, GE X, et al. Optimal design and application of two-dimensional NMR logging in Chuanxi tight gas reservoir[J]. Chinese J Magn Reson, 2018, 35(2):234-242. 张世懋,张哨楠,葛祥,等. 川西致密气藏二维核磁共振测井优化设计与应用[J]. 波谱学杂志, 2018, 35(02):234-242.
[17] 李元. 核磁共振谱仪软件实验参数管理的设计与实现[D]. 武汉:武汉理工大学, 2011.
[18] ZHANG Z, MAO W P, LIU C Y. Progress in the development of pulse programmer for nuclear magnetic resonance[J]. Chinese J Magn Reson, 2012, 29(3):339-345. 张志, 毛文平, 刘朝阳. 核磁共振脉冲序列发生器研究进展[J]. 波谱学杂志, 2012, 29(3):339-345.
[19] YAN Z Y,CHEN Z W. Implementation of graphical pulse sequence design using eclipse graphical modeling framework[J]. Chinese J Magn Reson, 2017, 34(2):175-182. 颜志煜,陈志伟. 基于Eclipse图形建模框架的图形化脉冲序列设计软件的实现[J]. 波谱学杂志, 2017, 34(2):175-182.
[20] WANG Z D. XIAO L Z. LIU T Y. A new method for multi index inversion of NMR relaxation signals and its application[J]. Scientia Sinica (Physica, Mechanica & Astronomica), 2003, 33(4):323-332. 王忠东, 肖立志, 刘堂宴. 核磁共振弛豫信号多指数反演新方法及其应用[J]. 中国科学:物理学、力学和天文学, 2003, 33(4):323-332.
[21] TAN M J, ZOU Y L, A hybrid inversion method of (T2, D) 2D NMR logging and obversation parameters effects[J]. Chinese J Geophys, 2012, 55(2):683-629. 谭茂金, 邹友龙. (T2, D)二维核磁共振测井混合反演方法与参数影响分析[J]. 地球物理学报, 2012, 55(2):683-629.
