About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract

AAPG Bulletin, V. 91, No. 4 (April 2007), P. 437-443.

Copyright copy2007. The American Association of Petroleum Geologists. All rights reserved.

DOI:10.1306/12040606053

Lithofacies summary of the Mississippian Barnett Shale, Mitchell 2 T.P. Sims well, Wise County, Texas

James J. Hickey,1 Bo Henk2

1Applied Reservoir Petrology, LLC, Dallas, Texas 75214; [email protected]
2Matador Resources, Dallas, Texas 75240; [email protected]

ABSTRACT

The Mississippian Barnett Shale is an important hydrocarbon source rock and has recently developed into a very active gas-shale play. Commonly viewed as a homogeneous black shale, the Barnett actually consists of a variety of organic-rich lithofacies of siliceous, calcareous, or phosphatic composition. Recognition of the different lithofacies is an important step in the evaluation of gas in place, flow capacity, and mechanical properties of the Barnett. Petrographic study of conventional core samples from the lower part of the Barnett has led to the recognition of the following rock types: organic-rich black shale, fossiliferous shale, dolomite rhomb shale, dolomitic shale, phosphatic shale, and concretionary carbonate. Measured total organic carbon values, averaged by rock type, range by a factor of nearly two, with the organic-rich shale and phosphatic shale having the highest values. The development of these lithofacies is a result of suspension fallout and sediment gravity flows combined with the extensive early microbial alteration of abundant organic matter. The lithofacies vary in petrophysical and mechanical properties, as well as organic content.

Pay-Per-View Purchase Options

The article is available through a document delivery service. Explain these Purchase Options.

Protected Document: $10
Internal PDF Document: $14
Open PDF Document: $24

AAPG Member?

Please login with your Member username and password.

Members of AAPG receive access to the full AAPG Bulletin Archives as part of their membership. For more information, contact the AAPG Membership Department at [email protected].