A new technique for synthetizing capillary pressure (Pc) curves using NMR logs in tight gas sandstone reservoirs
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- 作者：Liang Xiaoa ; Chang-chun Zoua ; zoucc@cugb.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Zhi-qiang Maob ; Yan Jinc ; Ji-chang Zhua
- 关键词：Nuclear magnetic resonance (NMR) logs ; Pore structure ; Pore component percentage compositions ; Capillary pressure (Pc) curves ; Construction
- 刊名：Journal of Petroleum Science and Engineering
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：145
- 期：Complete
- 页码：493-501
- 全文大小：3119 K
文摘
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Seven T2cutoffs are defined to predict pore component percentage compositions from NMR logs to characterize rock pore structure.
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Relationships of SHg under every Pc with the pore component percentage compositions are analyzed.
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A novel method of constructing pseudo Pc curves from field NMR logs is proposed,