DOI: 10.1029/97gl03775. Capillary sealing in sedimentary basins: A clear field example

Capillary sealing in sedimentary basins: A clear field example

10.1029/97gl03775

Crossref journal-article

American Geophysical Union (AGU)

Geophysical Research Letters (13)

Abstract

Pore fluid overpressures as high as 2 MPa (full lithostatic) are observed at ODP Site 975 starting at depths of 145 mbsf (meters below the sea floor). Sediment porosity increases to near surface values below the top of overpressure, while compaction and pressures above the seal are normal. Spikes in the density log and degassing of core from the overpressured zone indicate the presence of gas. The high porosity sediments are far too permeable to allow the generation and maintainance of fluid overpressures by disequilibrium compaction alone. The presence of two fluid phases in a layered sequence of fine and coarse sediment suggests capillary sealing, and this is shown to be quantitatively feasible.

Bibliography

Revil, A., Cathles, L. M., Shosa, J. D., Pezard, P. A., & de LarouziÃ¨re, F. D. (1998). Capillary sealing in sedimentary basins: A clear field example. Geophysical Research Letters, 25(3), 389â392. Portico.

Authors 5

A. Revil (first)
L. M. Cathles (additional)
J. D. Shosa (additional)
P. A. Pezard (additional)
F. D. de Larouzière (additional)

References 16 Referenced 29

{'key': 'e_1_2_1_2_1', 'first-page': '939', 'article-title': 'Capillary pressures in stratigraphic traps', 'volume': '59', 'author': 'Berg R. R.', 'year': '1975', 'journal-title': 'AAPG Bull.'} / AAPG Bull. / Capillary pressures in stratigraphic traps by Berg R. R. (1975)
10.1130/0016-7606(1968)79[1097:OTMOAF]2.0.CO;2
{'key': 'e_1_2_1_4_1', 'first-page': '410', 'article-title': 'Geological aspects of abnormal reservoir pressures in Gulf Coast Louisiana', 'volume': '37', 'author': 'Dickinson G.', 'year': '1953', 'journal-title': 'AAPG Bull.'} / AAPG Bull. / Geological aspects of abnormal reservoir pressures in Gulf Coast Louisiana by Dickinson G. (1953)
{'key': 'e_1_2_1_5_1', 'first-page': '1', 'article-title': 'Generation and migration of petroleum from abnormally pressured compartments', 'volume': '74', 'author': 'Hunt J.', 'year': '1990', 'journal-title': 'AAPG Bull.'} / AAPG Bull. / Generation and migration of petroleum from abnormally pressured compartments by Hunt J. (1990)
10.1017/S0022112088000953
10.1029/JB091iB09p09533
{'key': 'e_1_2_1_8_1', 'series-title': 'AAPG Memoir', 'author': 'Ortoleva P. J.', 'year': '1994'} / AAPG Memoir by Ortoleva P. J. (1994)
10.1029/WR025i002p00203
Patchett J. G. An investigation of shale conductivity SPWLA 16th Annual Logging Symposium Paper U pp. 1975.
{'key': 'e_1_2_1_11_1', 'series-title': 'Geological Society Special Publication', 'first-page': '253', 'volume-title': 'Developments in Petrophysics', 'author': 'Revil A.', 'year': '1997'} / Developments in Petrophysics / Geological Society Special Publication by Revil A. (1997)
{'key': 'e_1_2_1_12_1', 'volume-title': 'Compaction of argilleceous sediments', 'author': 'Rieke H. H.', 'year': '1974'} / Compaction of argilleceous sediments by Rieke H. H. (1974)
10.1029/WR026i010p02625
10.1029/JB095iB06p08663
Shipboard Scientific Party Group Proc. ODP Init. Rep.R. N.Riegel161Ocean Drilling Program College Station TX 1996
{'key': 'e_1_2_1_16_1', 'series-title': 'AAPG Memoir', 'volume-title': 'Basin Compartments and Seals', 'author': 'Surdam R. C.', 'year': '1994'} / Basin Compartments and Seals / AAPG Memoir by Surdam R. C. (1994)
10.1016/0264-8172(87)90008-0

Dates

Type	When
Created	21 years, 7 months ago (Feb. 3, 2004, 11:36 p.m.)
Deposited	1 year, 9 months ago (Nov. 22, 2023, 3:02 a.m.)
Indexed	4 months, 4 weeks ago (April 8, 2025, 9:27 a.m.)
Issued	27 years, 7 months ago (Feb. 1, 1998)
Published	27 years, 7 months ago (Feb. 1, 1998)
Published Online	27 years, 7 months ago (Feb. 1, 1998)
Published Print	27 years, 7 months ago (Feb. 1, 1998)

Funders 0

None

BibTeX

@article{Revil_1998, title={Capillary sealing in sedimentary basins: A clear field example}, volume={25}, ISSN={1944-8007}, url={http://dx.doi.org/10.1029/97gl03775}, DOI={10.1029/97gl03775}, number={3}, journal={Geophysical Research Letters}, publisher={American Geophysical Union (AGU)}, author={Revil, A. and Cathles, L. M. and Shosa, J. D. and Pezard, P. A. and de Larouzière, F. D.}, year={1998}, month=feb, pages={389–392} }

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