C&P: "The Geo-mechanics of a Clay Rich Formation in Southern Chile"

Speaker: Larry K. Britt
Speaker Larry K. Britt
Larry K. Britt, is an engineering consultant with NSI Fracturing and President of Britt Rock Mechanics Laboratory at the University of Tulsa. Since joining NSI in early 1999, Larry has specialized in the development and application of tools for the post appraisal of hydraulic fracturing stimulations. Britt’s experience includes the ...

Larry K. Britt, is an engineering consultant with NSI Fracturing and President of Britt Rock Mechanics Laboratory at the University of Tulsa. Since joining NSI in early 1999, Larry has specialized in the development and application of tools for the post appraisal of hydraulic fracturing stimulations. Britt’s experience includes the optimization, design, and execution of fracture stimulations and integrated field studies throughout the world. Prior to joining NSI he worked for Amoco Production Company for nearly twenty years. During the last six years with Amoco, he was fracturing team leader at Amoco’s Technology Center in Tulsa, Oklahoma, where he was charged with managing the development and application of fracturing technology for Amoco’s worldwide operations. Larry is the co-author of the SPE book “Design and Appraisal of Hydraulic Fractures.” He has served twice as an SPE Distinguished Lecturer, as a JPT editor on “Hydraulic Fracturing” and on numerous SPE Forum Committees on Gas Reservoir Engineering and Hydraulic Fracturing. In addition, Larry has authored over thirty technical papers on reservoir management, pressure transient analysis, hydraulic fracturing, and horizontal well completion and stimulations. He is a graduate of the Missouri University of Science & Technology (MS&T) where he has a B.S. in Geological Engineering and a Professional Degree in Petroleum Engineering. Britt is an adjunct professor in the Petroleum Engineering Department at MS&T and serves on both the Petroleum Engineering and University Engineering Advisory Boards and as a member of the Mines and Metallurgy Academy.

Full Description

Building a basis of design for completing and fracture stimulating conventional wells requires developing a profile with depth of in-situ stress, Young's Modulus, and leak-off coefficient. In these reservoirs, it is fairly straightforward. For unconventional reservoirs, it requires additional knowledge of the rock, its mineralogy, geo-mechanics, and the state of stress as well.

This presentation provides insight into the development of the basis of fracture design for the Glauconite Formation in a remote and logistically challenged area of Southern Chile. This formation is comprised of an average of over forty percent clay, thirty four percent feldspar, and twenty three percent quartz with some pyroclastic tuff mixed in. A truly unconventional reservoir where the use of dipole sonic logs to develop an in-situ stress and modulus profile hasn't worked effectively. These logs indicate that the Glauconite Formation has a low Young's Modulus and is a very "ductile" formation. As a result and because this data appeared inconsistent, a significant data collection effort was undertaken. This effort included an extensive core analysis program including mineralogy, ultrasonic and tri-axial compression tests, un-propped crack tests, and embedment tests. Additionally, the data collection efforts included the use of Diagnostic Fracture Injection Tests (DFIT's) and mini-frac tests on every well. These data collection efforts have shown the Glauconite to be a relatively high Young's Modulus and "brittle" formation totally refuting the dipole sonic log analysis and its use in developing a fracture design basis.

Organizer Jonathan Godwin

Contact: 281.921.6526 or jgodwin@carboceramics.com

When?

Wed, May. 28, 2014
11:30 a.m. - 1 p.m. US/Central

How Much?

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Where?

Greenspoint Club
16925 Northchase Drive
Houston, Texas 77060
United States

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