Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1306/05021917345 |
Carbonate rocks: Matrix permeability estimation | |
Cardona, Alejandro; Santamarina, J. Carlos | |
2020-01-15 | |
发表期刊 | AAPG BULLETIN |
ISSN | 0149-1423 |
EISSN | 1558-9153 |
出版年 | 2020 |
卷号 | 104期号:1页码:131-144 |
文章类型 | Article |
语种 | 英语 |
国家 | Saudi Arabia |
英文摘要 | Carbonate rocks store half of the world's proven oil reserves. Genesis and postdepositional diagenetic processes define the porous network topology and the matrix permeability. This study compiles a database of porosity, specific surface, mercury porosimetry, and permeability values extracted from published sources and complements the database through a focused experimental study. Specific surface and porosity combine to estimate the pore size (D-sur). Permeability versus D-sur. data duster along a single trend with a slope of 2 in a log-log scale, which is in agreement with the Kozeny-Carman model. Discordant data points correspond to samples with dual porosity or broad pore-size distributions with long tails, where flow channels along larger interconnected pores. Indeed, the detailed analysis of all the porosimetry data in the database shows that permeability correlates best with the pore size D80, that is, the 80th percentile in pore-size distributions. Once again, the best fit is a power function in terms of (D80)(2), analogous to Kozeny-Carman. The prediction uncertainty using D80 is one order of magnitude and has the same degree of uncertainty as more complex models and analyses. This observation suggests an irreducible uncertainty of one order of magnitude in permeability estimation from index properties such as porosity, mercury porosimetry, and specific surface probably resulting from specimen preparation effects, inherent physical differences in permeation versus invasion, and difficulties in data interpretation. These estimates of permeability are most valuable when specimens are limited to small sizes, such as cuttings. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000507457800007 |
WOS关键词 | CRITICAL PATH-ANALYSIS ; POROUS-MEDIA ; HYDRAULIC CONDUCTIVITY ; MERCURY POROSIMETRY ; RESERVOIR ROCKS ; SURFACE-AREA ; PORE SYSTEMS ; POROSITY ; PREDICTION ; CLASSIFICATION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/248754 |
专题 | 地球科学 |
作者单位 | KAUST, Energy Resources & Petr Engn, Thuwal, Saudi Arabia |
推荐引用方式 GB/T 7714 | Cardona, Alejandro,Santamarina, J. Carlos. Carbonate rocks: Matrix permeability estimation[J]. AAPG BULLETIN,2020,104(1):131-144. |
APA | Cardona, Alejandro,&Santamarina, J. Carlos.(2020).Carbonate rocks: Matrix permeability estimation.AAPG BULLETIN,104(1),131-144. |
MLA | Cardona, Alejandro,et al."Carbonate rocks: Matrix permeability estimation".AAPG BULLETIN 104.1(2020):131-144. |
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