收稿日期: 2016-06-05
修回日期: 2016-09-15
网络出版日期: 2017-08-10
基金资助
中国石油天然气股份有限公司“深层油气勘探开发关键技术研究”重大科技专项(编号：2014E-3205(GF))资助.
Gas-water identification of carbonate reservoir based on log mean difference of T2 spectrum
Received date: 2016-06-05
Revised date: 2016-09-15
Online published: 2017-08-10
准确识别气水是气藏测井评价的一个关键问题，提出了利用不同观测模式下T2谱中心位置差异来识别气水的方法。理论分析发现，改变核磁共振测量模式会使得到的T2谱中心位置发生变化，而天然气对这种变化比地层水更为敏感，可以利用这一性质进行气水识别。编制了利用不同等待时间或不同回波间隔T2谱进行气水识别的软件，并对四川盆地某地区碳酸盐岩储层气藏进行了测试，气水识别结果与试油结果一致，证明了所提方法的有效性。将该方法应用于多口井，结果显示具有较好的识别效果，同时发现利用不同回波间隔的2组T2谱对数均值差异进行气水识别的准确性要高于不同等待时间的2组T2谱。
张宫，冯庆付，武宏亮，王克文，冯周 . 基于核磁T2谱对数均值差异的碳酸盐岩气水识别[J]. 天然气地球科学, 2017 , 28(8) : 1243 -1249 . DOI: 10.11764/j.issn.1672-1926.2016.11.008
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.
[1]Ning Congqian.Directhydrocarbon 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.]
[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 T2 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T2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 T1 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(T2,D)NMR logging method for fluids characterization[J].Chinese Journal of Geophyics,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.]
[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-T2 two-dimensional NMR technology[J].Well Logging Technology,2015,39(3):261-271.[杨培强，吴飞，范宜仁.D-T2二维核磁共振技术发展综述[J].测井技术,2015,39(3):261-271.]
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