Effects of laboratory consolidation on petrophysical properties of fine-grained marine sediments: Electron microscopic observations

Jin Wook Kim, Yir Der E. Le, Thomas T. Tieh, William R. Bryant

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Pliocene-Recent marine sediments, recovered at site 1125 by ODP Leg 181 on the eastern New Zealand margin, were subjected to laboratory consolidation tests and analyzed by scanning electron microscopy (SEM) before and after consolidation test. The primary objective of this study is to document the effects of consolidation on microfabric and petro-physical properties. X-ray diffraction and grain-size distribution data indicate that the samples are mineralogically and texturally similar and thus are ideal for the present study on the role of consolidation solely on petrophysical properties. Porosity was measured before and after each consolidation test, and permeability was estimated indirectly based on the theoretical method. SEM photomicrographs show details of changes of pore geometry and distribution after the consolidation test that account for the porosity loss.

Original languageEnglish
Pages (from-to)347-360
Number of pages14
JournalMarine Georesources and Geotechnology
Volume18
Issue number4
DOIs
Publication statusPublished - 2000

Bibliographical note

Funding Information:
Received 15 November 1999; accepted 20 April 2000. The authors thank the Integrated Reservoir Investigation Project, Texas A&M University, and the Ocean Drilling Program for financial support and sample availability for this study. This work was also partly supported by a Joint Oceanographic Institution grant. Address correspondence to Jin-Wook Kim, Dept. of Geology and Geophysics, Texas A&M Uni- versity, College Station, TX 77840, U.S.A. e-mail: Kim@geo.tamu.edu

All Science Journal Classification (ASJC) codes

  • Oceanography
  • Geotechnical Engineering and Engineering Geology
  • Ocean Engineering

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