Natural Gas Geoscience

Previous Articles     Next Articles

Gas-water identification of carbonate reservoir based on log mean difference of T2 spectrum

Zhang Gong1,2,Feng Qing-fu2,Wu Hong-liang2,Wang Ke-wen2,Feng Zhou2   

  1. 1.Key Laboratory of Exploration Technologies for Oil and Gas Resources of Education Ministry,Yangtze University,
    Wuhan 430100,China;
    2.Research Institute of Petroleum Exploration and Development,PetroChina,Beijing 100083,China
  • Received:2016-06-05 Revised:2016-09-15 Online:2017-08-10 Published:2017-08-10

Abstract:

Identification of gas and water is a key problem in gas reservoir logging evaluation,and a method for identifying gas water by using T2 spectral center location difference under different observation modes is proposed.Theoretical analysis shows that the change of the T2 spectrum center position can be changed by changing measurement mode,and the natural gas is more sensitive than the formation water.Based on the theory,gas-water recognition software is developed,and tested in Sichuan Basin.The result is confirmed by the oil testing conclusion,and the validation of the method is demonstrated.The method is applied in several wells,and results show that the method has good recognition effect.And we also found that recognition accuracy of different echo interval mode is higher than that of different waiting time mode.

Key words: Nuclear magnetic resonance, Carbonate reserve, Log mean of T2 spectrum, Identification of gas-water

CLC Number: 

  • P618.13

[1]Ning Congqian.Directhydrocarbon identification using calculated T1 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T1直接识别油气层的方法[J].测井技术,2001,25(2):123-126.]
[2]Liu Zhonghua,Li Xia,Zhao Wenzhi,et al.Enhanced diffusion theory of nuclear magnetic resonance(NMR) and its application to fluid identification of complex reservoirs[J].Petroleum Exploration and Development,2010,37(6):703-708.[刘忠华,李霞,赵文智,等.核磁共振增强扩散方法在复杂储集层流体识别中的应用[J].石油勘探与开发,2010,37(6):703-708.]
[3]Wang Zhongdong,Wang Hao,Xiang Tiande,et al.Integration of NMR DTW logs and DTE logs to improve the oilbed interpretation accuracy[J].Well Logging Technology,2001,25(5):365-368.[王忠东,汪浩,向天德,等.综合利用核磁谱差分与谱位移测井提高油层解释精度[J].测井技术,2001,25(5):365-368.]
[4]Zhao Qiulai,Li Qinghe,Ding Yujiao,et al.Application and analysis of MR explorer logging technology in fluid properties evaluation[J].Well Logging Technology,2004,28(5):436-440.[赵秋来,李庆合,丁娱娇,等.MREx核磁共振测井流体性质评价技术的应用分析[J].测井技术,2004,28(5):436-440.]
[5]He Zongbing,Ni Jing,Wu Dong,et al.Determining the hydrocarbon saturationaccording to the difference of T2 between hydrocarbon and water[J].Journal of Oil and Gas Technology,2007,29(5):92-96.[何宗斌,倪静,伍东,等.根据烃与水的T2差异确定含烃饱和度[J].石油天然气学报,2007,29(5):92-96.]
[6]Zhang Xiaoli,Feng Qiao,Wang Peng,et al.The application of nuclear magnetic resonance logging in gas-bearing tight sandstone[J].Natural Gas Industry,2007,27(3):40-42.[张小莉,冯乔,王鹏,等.核磁共振测井在致密含气砂岩中的应用[J].天然气工业,2007,27(3):40-42.]
[7]He Zongbing,Ni jing,Wu Dong,et al.Determining the hydrocarbon saturationaccording to the difference of T1 between hydrocarbon and water[J].Journal of Oil and Gas Technology,2008,30(1):102-105.[何宗斌,倪静,伍东,等.根据烃与水的T1差异确定含烃饱和度[J].石油天然气学报,2008,30(1):102-105.]
[8]Tan MaoJing,Shi Yaolin,Zhao Wenjie,et al.Joint inversion method for NMR dual-TW logging data and fluid typing[J].Chinese Journal of Geophyics,2008,51(5):1582-1590.[谭茂金,石耀霖,赵文杰,等.核磁共振双TW测井数据联合反演与流体识别[J].地球物理学报,2008,51(5):1582-1590.]
[9]He Zongbing.Rock Characteristics of NMR Relaxation and Application of Nuclear Magnetic Resonance in Logging[D].Shanghai:Tongji University,2008.[何宗斌.岩石核磁共振弛豫特性及核磁共振测井应用[D].上海:同济大学,2008.]
[10]Li Pengju,Zhang Zhipeng,Jiang Dapeng,Review on fluid identification methods with NMR logging[J].Well Logging Technology,2011,35(5):396-401.[李鹏举,张智鹏,姜大鹏.核磁共振测井流体识别方法综述[J].测井技术,2011,35(5):396-401.]
[11]Li Yang,Xiao Lizhi,Sun Huafeng.Analyses of influencing factors of hydrocarbon identification using NMR time domain analysis[J].Chinese Journal of Magnetic Resonance,2012 29(1):21-31.[李洋,肖立志,孙华峰.核磁共振测井TDA识别油气的影响因素[J].波谱学杂志,2012,29(1):21-31.]
[12]Xie Yihong,Xiao Lizhi,Deng Kejun,et al.Two dimensional NMR logging[J].Well Logging Technology,2005,29(5):430-434.[谢然红,肖立志,邓克俊,等.二维核磁共振测井[J].测井技术,2005,29(5):430-434.]
[13]Gu Zhaobin,Liu Wei.The inversion of two-dimensional NMR map[J].Chinese Journal of Magnetic Resonance,2007,24(3):311-319[顾兆斌,刘卫.核磁共振二维谱反演[J].波谱学杂志,2007,24(3):311-319.]
[14]Xie Ranhong,Xiao Lizhi,The(T2,D)NMR logging method for fluids characterization[J].Chinese Journal of Geophyics,2009,52(9):2410-2418.[谢然红,肖立志.(T2,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.]
[15]Hu Falong,Zhou Cancan,Li Chaoliu,et al.Fluid identification method based on 2D diffusion-relaxation nuclearmagnetic resonance (NMR)[J].Petroleum Exploration and Development,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.]
[16]Yang Peiqiang,Wu Fei,Fan Yiren,A development overview of D-T2 two-dimensional NMR technology[J].Well Logging Technology,2015,39(3):261-271.[杨培强,吴飞,范宜仁.D-T2二维核磁共振技术发展综述[J].测井技术,2015,39(3):261-271.]

[1] Wang Qing-hui,Feng Jin. The TOClogging evaluation methods and application of source rock:A case study of Wenchang Formation in Pearl River Mouth Basin [J]. Natural Gas Geoscience, 2018, 29(2): 251-258.
[2] . The nuclear magnetic resonance (NMR) characteristics of the carbonaterock reservoir which has dissolved pores and asphalt [J]. Natural Gas Geoscience, 2017, 28(8): 1257-1263.
[3] Zhang Chong,Zhang Chaomo,Zhang Zhansong,Qin Ruibao,Yu Jie. Comparative experimental study of the core irreducible water saturation of tight gas reservoir [J]. Natural Gas Geoscience, 2016, 27(2): 352-358.
[4] Liu Deng-ke,Sun Wei,Ren Da-zhong,Zhang Xi,Ming Hong-xia,Chen Bin. Features of pore-throat structures and movable fluid in tight gas reservoir: A case from the 8th member of Permian Xiashihezi Formation and the 1st member of Permian Shanxi Formation in the western area of Sulige Gasfield,Ordos Basin [J]. Natural Gas Geoscience, 2016, 27(12): 2136-2146.
[5] WANG Zhi-rong,CHEN Ling-xia,HAN Zhong-yang,CHEN Ping. Accumulation Mechanism of  Coalbed Methane Based on 13C NMRSpectrum and Its Gas-controlling Significance [J]. Natural Gas Geoscience, 2015, 26(5): 958-965.
[6] WANG Ru-yue,LENG Ji-gao,DING Wen-long,GONG Da-jian,LI Fei,SUN Ya-xiong. Logging Identification of the Lower Cambrian Niutitang Shale Gas Reservoir in Upper Yangtze Region:A Case Study of the Cengong Block,Guizhou Province [J]. Natural Gas Geoscience, 2015, 26(12): 2395-2407.
[7] YANG Zheng-ming, HUO Ling-Jing, ZHANG Ya-pu, WANG Xue-Wu, SHAN Wen-wen. Mechanism of Non-liner Gas Seepage Flow in Water-Bearing Volcanic Gas Reservoir [J]. Natural Gas Geoscience, 2010, 21(3): 371-374.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] WANG Rui,ZHANG Ning-sheng,LIU Xiao-juan,WU Xin-min,YAN Jian. Adsorption Influence Factors and Characteristics of AdsorptionIsotherm Curve for Shale to Methane[J]. Natural Gas Geoscience, 2015, 26(3): 580 -591 .
[2] Cao Cheng,Li Tian-tai,Wang Hui,Xu Xiao-qiang,Gao Chao. Research and application of shale permeability test method[J]. Natural Gas Geoscience, 2016, 27(3): 503 -512 .
[3] Zhu Wei-yao,Ma Dong-xu,Zhu Hua-yin,An Lai-zhi,Li Bing-bing. Stress sensitivity of shale gas reservoir and its influence on productivity[J]. Natural Gas Geoscience, 2016, 27(5): 892 -897 .
[4] Zhang Rui,Ning Zheng-fu,Zhang Hai-shan,Xie Qian. New insights and discussions on stress sensitivity of fractured tight reservoir[J]. Natural Gas Geoscience, 2016, 27(5): 918 -923 .
[5] Jiang Feng-guang,Wang Xiao-lin,Chen Zhi-hai. A method to analyze the reservoir fluid property before CO2 invasion and alteration[J]. Natural Gas Geoscience, 2017, 28(3): 488 -493 .
[6] Chen Yue,Tang Da-zhen,Tian Lin,Ma Dong-min,Fang Shi-yue,Chen Xi. Coal metamorphism controlling regulation on the development of poresand fractures in low-medium rank coal reservoirs[J]. Natural Gas Geoscience, 2017, 28(4): 611 -621 .
[7] Duan Xiang-gang,An Wei-guo,Hu Zhi-ming,Gao Shu-sheng,Ye Li-you,Chang Jin. Experimental study on fracture stress sensitivityof Silurian Longmaxi shale formation,Sichuan Basin[J]. Natural Gas Geoscience, 2017, 28(9): 1416 -1424 .