sustainability - SUNY College of Environmental Science and Forestry

Sustainability 2011 , 3 1867 Keywords: EROI; oil; gas; depletion; energy cost Introduction Petroleum, including crude oil, nat ...

Sustainability 2011 , 3 1868 earlier and more recent data for a longer time span using a consistent methodology. We also compare ...

Sustainability 2011 , 3 1869 total costs (exploratory + developmental + production). We estimated energy used to find (vs. devel ...

Sustainability 2011 , 3 1870 five years; however the criteria used to organize the data changed periodically, especially for 199 ...

Sustainability 2011 , 3 1871 available to make a better estimate. Self-use of crude petroleum is seen in the Petroleum and Natur ...

Sustainability 2011 , 3 1872 For capital expenditures, O’Connor and Cleveland’s analysis uses the current-cost depreciation seri ...

Sustainability 2011 , 3 1873 already included in the direct energy consumed by the sector. It would then be inappropriate to app ...

Sustainability 2011 , 3 1874 Table 5. Estimates of energy costs, gained and EROI associated with energy discovered by the U.S oi ...

Sustainability 2011 , 3 1875 Figure 3. EROI and drilling intensity for same year. Note inverse relation, especially after 1957 b ...

Sustainability 2011 , 3 1876 Figure 5. Energy consumed within the U.S. oil and gas industry (Data from the U.S. Bureau of Census ...

Sustainability 2011 , 3 1877 Figure 6. U.S. Oil and Gas Production (Megabarrels of oil equivalent/day). Data from the Energy Inf ...

Sustainability 2011 , 3 1878 Figure 7. Sensitivity Analysis for indirect energy consumed by the U.S. oil and gas industry. Figur ...

Sustainability 2011 , 3 1879 Table 7. Changes in Alternative Analysis 1972–2007. Original Alternative Year Output (EJ) Direct (P ...

Sustainability 2011 , 3 1880 especially since 1950 (Figure 1). The reason that EROI is dropping is because the finding and produ ...

Sustainability 2011 , 3 1881 faces a continuing decline in the EROI of both conventional oil and gas. The EROI of most alternati ...

Sustainability 2011 , 3 1882 Appendix Table A-1. Raw data and calculations used for estimating energy costs for U.S. oil and gas ...

Sustainability 2011 , 3 1883 Table A-1. Cont. Year Type Raw value(#) Original Units (M= 10^6) Conversion To Metric (or other) Un ...

Sustainability 2011 , 3 1884 Table A-1. Cont. Year Type Raw value(#) Original Units (M= 10^6) Conversion To Metric (or other) Un ...

Sustainability 2011 , 3 1885 Table A-1. Cont. Year Type Raw value(#) Original Units (M= 10^6) Conversion To Metric (or other) Un ...

Sustainability 2011 , 3 1886 Table A-1. Cont. Year Type Raw value(#) Original Units (M= 10^6) Conversion To Metric (or other) Un ...