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Rock-Type Definition and Pore Characterization of Tight Carbonate Rocks Based on Thin Sections and MICP and NMR Experiments
  • 2024-01-08
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名   称 Rock-Type Definition and Pore Characterization of Tight Carbonate Rocks Based on Thin Sections and MICP and NMR Experiments
科技资源标识 CSTR:11738.14.NCDC.XDA14.PP5668.2024
DOI 10.1007/s00723-018-0993-2
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摘   要 Thick tight Ordovician carbonate rocks are present at depths exceed_x0002_ing 5300 m in the Tahe oilfeld and their matrix is considered to contain no storage
space. An integrated petrographical and petrophysical study was conducted on a set
of 25 tight carbonate core samples from Ordovician strata, covering a wide range of
lithologies and textures. Six carbonate rock types were characterized by integrating
both petrographical and petrophysical data, including thin-section observations and
porosity, permeability, mercury injection capillary pressure and nuclear magnetic
resonance (NMR) measurements. We found that thick grainstone and limestone with
half-flled fractures exhibited good reservoir properties. NMR testing is an invaluable tool for characterizing pore structures in tight carbonate rocks. For example, six
rock types can be identifed from the NMR T2 distributions and the changes in pore
volume under diferent pressures (up to 20 MPa) can be calculated. NMR technology can be used to perform rapid and accurate rock-type identifcation and pore network evaluation in tight carbonate rocks. The results provide an experimental foundation for NMR logging interpretations and advance the understanding of geological
and geophysical characteristics of ultra-deep carbonate reservoirs.
学科分类
170.20
关键词
Rock‑Type Defnition Pore Characterization
作者 Fei Tian,Weimin Wang,Naigui Liu
数据量 4.5 MiB
论文类型： journal
论文网址： https://link.springer.com/article/10.1007/s00723-018-0993-2
期刊名称： Appl Magn Reson
出版时间： 2018-07-01
引用和标注
数据引用
Fei Tian,Weimin Wang,Naigui Liu. Rock-Type Definition and Pore Characterization of Tight Carbonate Rocks Based on Thin Sections and MICP and NMR Experiments. 国家冰川冻土沙漠科学数据中心(http://www.ncdc.ac.cn), 2024. https://cstr.cn/CSTR:11738.14.NCDC.XDA14.PP5668.2024.
Fei Tian,Weimin Wang,Naigui Liu. Rock-Type Definition and Pore Characterization of Tight Carbonate Rocks Based on Thin Sections and MICP and NMR Experiments. 国家冰川冻土沙漠科学数据中心(http://www.ncdc.ac.cn), 2024. https://www.doi.org/10.1007/s00723-018-0993-2.
许可协议
知识共享许可协议   本作品采用 知识共享署名 4.0 国际许可协议进行许可。
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