The Multiwell Experiment Core Program

Sattler, A.R.

doi:10.2118/11763-ms

Cited by 9 publications

(5 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Summaries of the geologic setting from which these cores were taken are available. 6 achieved by centrifuging are further extended by measurement of desorption isotherms to the stage where retention of water is mainly a result of surface adsorption. The complete capillary pressure curves obtained by combining centrifuge data and desorption isotherms are complemented by measurements of permeability to gas at various levels of water saturation and confining pressure.…”

Section: Introductionmentioning

confidence: 99%

Capillary Pressures and Gas Relative Permeabilities of Low-Permeability Sandstone

Ward

Morrow

1987

SPE Formation Evaluation

View full text Add to dashboard Cite

Use of a high-speed centrifuge for capillary pressure measurements on low-permeability sandstones has been investigated. Curvatures for air/brine and air/decane displacements are compared. Capillary pressures of up to about 800 psi [5516 kPa] for gas displacing brine were extended Over an order of magnitude by measurement of isotherms for desorption of water. Capillary pressures measured by high-speed centrifuge merged satisfactorily with results derived from the desorption isotherms. No distinct irreducible water saturation was observed. Permeabilities to gas at various levels of water saturation were also measured and found to be generally consistent with previous relative-permeability measurements.

show abstract

Section: Introductionmentioning

confidence: 99%

Capillary Pressures and Gas Relative Permeabilities of Low-Permeability Sandstone

Ward

Morrow

1987

SPE Formation Evaluation

View full text Add to dashboard Cite

show abstract

“…Limited laboratory measured Archie exponents were available. Cementation exponents (m) and saturation exponents (n) from formation factor and resistivity index measurements made on Mesaverde core samples from the MWX wells in northwestern Colorado (Sattler 1983(Sattler , 1991 are reported below. The generalized form of the equation was developed by Timur (1968).…”

Section: Archle Exponentsmentioning

confidence: 99%

“…Sattler (1983) reports the appropriate saturation exponent from the above data to be 1.85 at room conditions. In-Situ corrections for saturation exponents were not found in the literature.…”

mentioning

confidence: 99%

Reserves in western basins: Part 1, Greater Green River basin

1993

View full text Add to dashboard Cite

This study characterizes an extremely large gas resource located in low permeability, overpressured sandstone reservoirs located below 8,000 feet drill depth in the Greater Green River basin, Wyoming. Total in place resource is estimated at 1,968 Tcf. Via application of geologic, engineering and economic criteria, the portion of this resource potentially recoverable as reserves is estimated. Those volumes estimated include probable, possible and potential categories and total 33 Tcf as a mean estimate of recoverable gas for all plays considered in the basin. Resources, Snyder Oil, TerraTek, True Drilling, and UPRC for their cooperation. In addition, we would like to thank Petroleum Information Corporation for consenting to the use of digital well identification data from their WHCS database in the digital database that accompanies this report. The Scotia project team consisted of Rob Caldwell (project manager), Mark Cocker (geology, petrophysics), Bill Cotton (computing, databases), Cliff Adams, Wayne Beninger, Dave Heather, and Pat Wagner (reservoir engineering), Simon Bidwell (engineering and petrophysics), Wendy Edmondson and Laurie Pasch (support), and Mary Ann Holubec (administration). Tom Carroll and Ken Ibsen provided consulting engineering and data support services. AI Jaffe acted as consulting business coordinator. These individuals are acknowledged for their diligent efforts. iv TABLE OF CONTENTS

show abstract

“…high water saturation at site, is not well studied. Two earlier papers were written about the MWX core program (Sattler, 1983(Sattler, , 1984. Detailed presentations of the core data by depositional environment are to be found in the Sandia/CER MWX Final Report Series, I to…”

Section: Fluvial Bmentioning

confidence: 99%

Core analysis in a low permeability sandstone reservoir: Results from the Multiwell Experiment

Sattler¹

1989

Self Cite

View full text Add to dashboard Cite

Over 4100 ft (1100 ft oriented) of Mesaverde core was taken during the drilling of the three Multiwell Experiment (MWX) wells, for study in a comprehensive core analysis program. This core traversed five separate depositional environments (shoreline/marine, coastal, paludal, fluvial, and paralic) , and almost every major sand in the Mesaverde at the site was sampled. This paper summarizes MWX core analysis and describes the petrophysical properties at the MWX site; reservoir parameters, including permeabilities of naturally fractured core; and mechanical rock properties including stress-related measurements. Some correlations are made between reservoir properties and mineralogy/petrology data. Comparisons are made between the properties of lenticular and blanket sandstone morphologies existing at the site. This paper provides an overview of a complete core analysis in a low-permeability sandstone reservoir. '^" DISTRIBUTION OF THIS DOCUiVlEMT IS UMLJK4ITED ACKNOWLEDGMENTS I thank N. R. Warpinski for many discussions and suggestions, especially about mechanical rock properties. J, C. Lorenz and S. J. Finley are acknowledged for many discussions about depositional environments and natural fracture systems at the MWX site. D. A. Northrop is thanked for many technical discussions about all aspects of MWX and for suggestions of organization and preparation of this paper. I commend M.

show abstract

The Multiwell Experiment Core Program

Cited by 9 publications

References 5 publications

Capillary Pressures and Gas Relative Permeabilities of Low-Permeability Sandstone

Capillary Pressures and Gas Relative Permeabilities of Low-Permeability Sandstone

Reserves in western basins: Part 1, Greater Green River basin

Core analysis in a low permeability sandstone reservoir: Results from the Multiwell Experiment

Contact Info

Product

Resources

About