Skip to Main Content
Book Chapter

A Study of Rock-Water Interaction and Simulation of Diagenesis in the Upper Almond Sandstones of the Red Desert and Washakie Basins, Wyoming

By
Indu D. Meshri
Indu D. Meshri
Amoco Production Company Tulsa
Oklahoma, U.S.A.
Search for other works by this author on:
Jana M. Walker
Jana M. Walker
Amoco Production Company Tulsa
Oklahoma, U.S.A.
Search for other works by this author on:
Published:
January 01, 1990

Abstract

Chemical modeling of the rock-water interactions in the Upper Almond Sandstone within the context of burial (thermal) history of these rocks predicts the petrographically observed sequence of cementation to a fair degree.

The depositional environment of the Upper Almond Sandstone is believed to have been a barrier bar of Late Cretaceous age. Therefore, initial pore-water chemistry is assumed to be a function of seawater composition and, consequently, marks the starting point of diagenesis.

Present-day water compositions along with a knowledge of depositional environment assist in further deduction of early pore-water composition as one-third diluted seawater. Formation waters collected from the Upper Almond Sandstone in the Wamsutter area are distinguished from waters of the underlying Main Almond Sandstone on the basis of total dissolved solids, <5180, log-derived salinities, and pressure-depth profiles.

The main objective of this study was to test the predictive capability of the existing computerized chemical modeling approach to elucidate diagenesis in the Upper Almond Sandstone. Having noted the chemical processes leading to the simulation of the observed diagenetic sequence, one can follow a similar logic to explore deeper or shallower for similar lithologic units.

You do not currently have access to this article.

Figures & Tables

Contents

AAPG Memoir

Prediction of Reservoir Quality Through Chemical Modeling

Indu D. Meshri
Indu D. Meshri
Search for other works by this author on:
Peter J. Ortoleva
Peter J. Ortoleva
Search for other works by this author on:
American Association of Petroleum Geologists
Volume
49
ISBN electronic:
9781629811239
Publication date:
January 01, 1990

GeoRef

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal