Tuesday, April 18, 2017 GSA Luncheon

"Gas Hydrate Petroleum System Analysis in Marine and Arctic
Permafrost Environments"

Noon Luncheon 11:30-1:00 pm

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The study of gas hydrates in nature has been ongoing for over 40 years. Significant strides have been made in our understanding of the occurrence, distribution, and characteristics of marine and permafrost associated gas hydrates. Numerous field studies have shown that the potential amount of gas stored as gas hydrates in the world greatly exceeds the volume of known conventional gas resources. Gas hydrate research in recent years has focused on: (1) documenting the geologic parameters that control the occurrence and stability of gas hydrates in nature, (2) assessing the volume of natural gas stored within various gas hydrate accumulations, (3) analyzing the production response and related characteristics of gas hydrates, (4) identifying and predicting natural and induced environmental and climate impacts of natural gas hydrates, and (5) analyzing the effects of gas hydrate on drilling safety.

With an increasing number of highly successful gas hydrate laboratory and field studies, significant progress has been made in addressing some of the key issues on the formation, occurrence, and stability of gas hydrates in nature. The concept of a gas hydrate petroleum system, as a subcomponent of a conventional oil and gas petroleum system is now commonly used to describe and assess the geologic nature of newly discovered gas hydrate accumulations. In a gas hydrate petroleum system, the individual factors contributing to the formation of gas hydrate accumulations, such as (1) gas hydrate pressure-temperature stability conditions, (2) gas source, (3) gas migration, and (4) the growth of the gas hydrate in suitable host sediment can
be identified and quantified.

The primary goal of this lecture is to bring together the knowledge from both marine- and permafrostrelated gas hydrate studies in order to document the critical components of various example gas hydrate petroleum systems. This lecture reviews the results of field, laboratory, and modeling studies to better document and assesses the geologic


Speaker: Tim Collett, AAPG Distinguished Lecturer

Dr. Tim Collett has been a research geologist in the U.S. Geological Survey (USGS) since 1983. Tim is the Project Chief of the Energy Resources Program funded gas hydrate research efforts in the USGS. He has received the Department of the Interior
eritorious Service Award and the Golomb-Chilinger Medal from the Russian Academy of Natural Sciences and the Natural Resources of Canada Public Service Award.

Tim has been the Chief and Co-Chief Scientist of numerous domestic and international gas hydrate scientific and industrial drilling expeditions and programs. He has been the Co-Chief Scientists and Operational Coordinator for the India NGHP Expedition 01
and 02 gas hydrate drilling and testing projects. Tim was a Co-Chief Scientist of the international cooperative gas hydrate research project that was responsible for drilling dedicated gas hydrate production research wells in the Mackenzie Delta of Canada under the Mallik 1998 and 2002 efforts. Tim was the logging scientist on the Gulf of Mexico JIP Gas Hydrate Research Expedition in 2005 and is the Co-Chief Scientist of the Integrated Ocean Drilling Program (IODP) Expedition 311, and the Gulf of Mexico JIP Leg II
drilling project in 2009. He sailed as a science advisor on the Korean UBGH2 Expedition in 2010. Tim was also the Principal Investigator responsible for organizing and conducting the 1995 and 2008 USGS National Oil and Gas Assessment of natural gas hydrates. Tim is an Adjunct Professor in the Department of Geophysics at the Colorado School of Mines. Tim’s current research efforts in the USGS deal mostly with domestic and international gas hydrate energy resource characterization studies. His ongoing gas hydrate assessment activities in Alaska are focused on assessing the energy resource potential of gas hydrates on the North
Slope and supporting the domestic marine gas hydrate assessments being led by the U.S. Bureau of Ocean Energy Management. Tim’s international gas hydrate activities include cooperative projects with research partners in India, Korea, Japan, China, Taiwan, and Canada. Tim has published more than 200

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