Evaluation of the Pore Structure of Reservoirs Based on NMR T2 Spectrum Decomposition
- 作者: Wang F.1, Tang T.2, Liu T.1, Zhang H.2
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隶属关系:
- State Key Lab of Marine Geology, Tongji University
- Technology Research Center, China Petroleum Logging CO. LTD.
- 期: 卷 47, 编号 4 (2016)
- 页面: 361-373
- 栏目: Article
- URL: https://journals.rcsi.science/0937-9347/article/view/247441
- DOI: https://doi.org/10.1007/s00723-015-0747-3
- ID: 247441
如何引用文章
详细
Nuclear magnetic resonance (NMR) T2 distributions can be employed to understand the geometry of pores, but they are not sensitive enough to determine pore connectivity. In this paper, the pore space in reservoirs is regarded as a series of different sizes of the combination of spherical pores and cylinder pores based on the pore network model and Sphere–Cylinder model. In terms of the optimized T2 inversion method, T2 spectral distribution is decomposed into two groups, sphere pore distribution and cylinder pore distribution. It is assumed that cylinder pore controls the connectivity and permeability of the reservoir and the sphere pore is the main place of fluid storage. The more cylinder pores that exist, the better the connectivity and permeability are. The data of eight core plugs are analyzed using this method, and the results are in accordance with those of core analysis, which proves the practicability of our research and provides a basis for the direct evaluation of reservoir pore structure using NMR T2 distribution.
作者简介
Fei-Fei Wang
State Key Lab of Marine Geology, Tongji University
编辑信件的主要联系方式.
Email: 1105936347@qq.com
中国, Shanghai, 200092
Tian-Zhi Tang
Technology Research Center, China Petroleum Logging CO. LTD.
Email: 1105936347@qq.com
中国, Xi’an, 710077
Tang-Yan Liu
State Key Lab of Marine Geology, Tongji University
Email: 1105936347@qq.com
中国, Shanghai, 200092
Hai-Ning Zhang
Technology Research Center, China Petroleum Logging CO. LTD.
Email: 1105936347@qq.com
中国, Xi’an, 710077