Quick Search:    advanced search

GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help

This Article Figures Only Full Text Full Text (PDF) Submit a response Alert me when this article is cited Alert me when eLetters are posted Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Baechle, G. T. Articles by Weger, R. J. Search for Related Content GeoRef GeoRef Citation

Effects of microporosity on sonic velocity in carbonate rocks

ExxonMobil Upstream Research Company, Houston, USA

Arnout Colpaert

StatoilHydro Research Center, Trondheim, Norway

Gregor P. Eberli

University of Miami, USA

Ralf J. Weger

Repsol-YPF, Buenos Aires, Argentina

Corresponding author: gregor.baechle{at}exxonmobil.com

The elastic moduli of a rock are affected by three main factors: pore fluid, rock framework, and pore space. In carbonate rocks, the latter two factors are a function of the depositional environment and the diagenetic history. Cementation, recrystallization, and dissolution processes can change the mineralogy and texture of the original framework and thereby alter the original grain-to-grain contacts and/or occlude pore space. Dissolution processes can enlarge interparticle pore space or dissolve grains entirely, thereby increasing porosity. These diagenetic alterations and associated changes in the rock frame and pore structure result in a wide velocity range at a given porosity.

This article has been cited by other articles:

				R. J. Weger, G. P. Eberli, G. T. Baechle, J. L. Massaferro, and Y.-F. Sun Quantification of pore structure and its effect on sonic velocity and permeability in carbonates AAPG Bulletin, October 1, 2009; 93(10): 1297 - 1317. [Abstract] [Full Text] [PDF]