Resource Assessment of Oil & Gas, Coal-Bed Methane, and Geothermal Resources in Western Washington Department of Geology Portland State University M. Cummings, J. Jackson, D. Percy

Objectives Phase One: Review literature to identify play concepts and data for subsequent evaluation Phase Two: Evaluate and tabulate data for use in subsequent evaluation

Phase One Activities Compile and review existing literature relating to oil and gas resources Compile and review existing literature relating to coal-bed methane resources Compile and review existing literature relating to geothermal resources GIS review of existing physical and digital maps

Phase One Products Annotated Bibliography Database of existing digital and map resources

Phase Two Activities Enter oil & gas related data into digital database Enter coal-bed methane related data into digital database Enter geothermal related data into digital database

Phase Two Products Database of oil & gas, coal-bed methane, and geothermal energy resources, with evaluation of utility for subsequent analysis. Preliminary map showing areas of high, medium, and low resource potential for oil & gas, coal-bed methane, and geothermal energy resources.

Phase Three: Resource Assessment Petroleum Systems Assessment Coal-Bed Methane Systems Assessment Geothermal Systems Assessment Federal Land Assessment Preliminary Surface Impact Estimate

Petroleum Systems Source Rock Maturation Migration Structure Reservoir Seal

Petroleum System Assessments Mass-Balance –Source Richness –Source Volume –Hydrocarbon Generation –Hydrocarbon Migration –Trapping Efficiency –Hydrocarbon Recovery Play Summation –Minimum Field Size –Maximum Field Size –Minimum Number –Maximum Number –Monte Carlo Sum

Coal-Bed Methane System

Coal-Bed Methane Assessment Gas Research Institute Mass-Balance Coal area (a) Coal thickness (h) Average rock density (d) Average gas content (g) Gas-in-place = (1359.7) a h d g

Geothermal Systems Volcanic Center Heat Permeability Water

Geothermal Assessment Identify appropriate volcanic terrain analogs Identify producing geothermal facilities from analog terrain. Adjust assessment to account for differences between assessed terrain and analog terrain.

Federal Land Assessments Oil & Gas play area on Federal land Coal-Bed Methane play area on Federal land Geothermal terrain on Federal land Potential Gas Storage Centers on Federal Land Mod Federal Land Resource Area High Moderate

Preliminary Impact Estimates Oil & Gas –Surface foot print –Water resource impact Coal-Bed Methane –Surface foot print –Water production Geothermal facility –Surface foot print –Water production Drill Pad (X acres) Producer Injector Processing Facility Pipeline

Phase Three Products Oil & Gas Play Summary Maps Resource Assessments For Each Play Coal-Bed Methane Potential Maps Coal-Bed Methane Resource Assessments Geothermal Resource Maps Geothermal Resource Assessments Federal Land Assessments Preliminary Surface Impact Estimates Technical work recommendations

Publications 2003 AAPG Annual Meeting Poster – Salt Lake City, UT 2003 Pacific Section Meeting Poster – Long Beach, CA Open File Report Website –

Summary Phase One: Literature Review Phase Two: Data Assembly Phase Three: Resource Assessment for Federal Lands Additional Phases: Field and Laboratory Studies to Improve Assessment

Area Ranking Map Based on Literature Review

Coal Bed Methane Ranking Map Based on Literature Review Potential: LCBM – Low Coal Bed Methane MCBM – Medium Coal Bed Methane HCBM – High Coal Bed Methane

Geothermal Resource Ranking Map Based on Literature Review Potential: MGt – Medium Geothermal HGt – High Geothermal

Oil & Gas Ranking Map Based on Literature Review Potential: MG – Medium Gas HG – High Gas MO – Medium Oil