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GEOREF RECORD

Petrophysics and rock physics modeling of diagenetically altered sandstone

Zakir Hossain and Yijie Zhou
Petrophysics and rock physics modeling of diagenetically altered sandstone (in Geologic, geophysical, and petrophysical interpretation of core data and well logs, Anonymous)
Interpretation (Tulsa) (February 2015) 3 (1): SA107-SA120

Abstract

We worked to establish relationships among porosity, permeability, resistivity, and elastic wave velocity of diagenetically altered sandstone. Many such relationships are documented in the literature; however, they do not consider diagenetic effects. Combining theoretical models with laboratory measured data, we derived mathematical relationships for porosity permeability, porosity velocity, porosity resistivity, permeability velocity, velocity resistivity, and resistivity permeability in diagenetically altered sandstone. The effects of clay and cementation were evaluated using introduced coefficients in these relationships. We found that clean sandstone could be modeled with Kozeny's relation; however, this relationship broke down for clay-bearing and diagenetically altered sandstone. Porosity is the first-order parameter that affects permeability, electrical, and elastic properties; clay and cement cause secondary effects on these properties. Rock physics modeling results revealed that cementation had a greater effect on elastic properties than electrical properties and clay had a larger effect on electrical properties than elastic properties. The relationships we provided can greatly help to determine permeability, resistivity, and velocity from porosity and to estimate permeability from resistivity and velocity as well as to determine resistivity from velocity measurements.


ISSN: 2324-8858
EISSN: 2324-8866
Serial Title: Interpretation (Tulsa)
Serial Volume: 3
Serial Issue: 1
Title: Petrophysics and rock physics modeling of diagenetically altered sandstone
Title: Geologic, geophysical, and petrophysical interpretation of core data and well logs
Author(s): Hossain, ZakirZhou, Yijie
Author(s): Anonymous
Affiliation: Rock Solid Images, Houston, TX, United States
Pages: SA107-SA120
Published: 201502
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
References: 47
Accession Number: 2015-034262
Categories: Sedimentary petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States
Update Code: 201516
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