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Treasure” and the other claiming that shale gas is marginally profitable, ... EROI is a method by which we determine how much energy can be gained at a ...

http://uk.theoildrum.com/pdf/theoildrum_5908.pdf

11 Oct 2009 ... Gas,. Coal, Tar Sands, Shale Oil). Wind = 18 (ish). Solar = 3.5. Biofuels = 1.2. Nuclear = 5-15. 2. EROI of major types of energy ...

http://aspo-usa.com/2009presentations/David_Murphy_Oct_11_2009.pdf

energy and fossil fuels that have EROI no better than the approximately 30:1 .... (there are serious doubts about shale gas abundance,) then natural gas is ...

http://energyandourfuture.org/pdf/theoildrum_6053.pdf

25 Aug 2009 ... the natural gas and other gasses produced in the upgrading process to .... Unconventional Oil: Tar Sands and Shale Oil - EROI on the Web, ...

http://energyandourfuture.org/pdf/theoildrum_5701.pdf

Unconventional shale gas. ~8000 feet deep w/~4000 foot lateral ... This is the EROI of upstream cost. Unconventional. Conventional ...

http://web.mac.com/biophysicalecon/iWeb/Site/BPE Conference_files/Download Sell.pdf

by CAS Hall - Cited by 6

http://web.mac.com/biophysicalecon/iWeb/Site/Downloads_files/EROI_Min.pdf

shale oil, tar sands and other bitumens usually mined as solids and also coal ..... though the EROI of global oil and gas is still about 18:1 as of 2006, ...

http://www.springerlink.com/index/Q31418V301002426.pdf

investment (EROI) become more difficult to achieve from conventional and ..... and gas shale could extend the lifetime of natural gas usage to the end of ...

http://www.springerlink.com/index/NL521687U5206274.pdf

by CJ Cleveland - 2004 - Cited by 40

http://www.ker.co.nz/pdf/Net Energy U.S. Oil and Gas.pdf

Source: Cleveland, C. J. “Net energy from the extraction of oil and gas in the United States.” Energy 30. (2005): 780. The EROI of oil shale has been ...

http://www.headwaterseconomics.org/energy/14Questions.pdf

Source: Cleveland, C. J. “Net energy from the extraction of oil and gas in the United States.” The EROI of oil shale has been estimated to lie between less ...

http://www.headwaterseconomics.org/energy/14Questions_2010.pdf

by CJ Cleveland - Cited by 253

http://www.oilcrisis.com/netEnergy/EnergyUSEconomy.pdf

1 Aug 2007 ... (Laherrère, J.H. 2004 «Future of natural gas supply» ASPO Berlin May 25-26 ..... Oil shale has an EROI and such environment problems which ...

http://www.oilcrisis.com/LaHerrere/TheOilDrum_Interview_JeanLaherrère.pdf

This report is an addendum to the “Peak Oil Production and Natural Gas Report to ..... The EROEI of shale oil produced in this fashion is very low: 3 to ...

http://www.housedems.ct.gov/Backer/pubs/TSandOSfina.pdf

12 May 2008 ... Shale oil. Sugar cane. Arctic oil. Deepwater oil. Cellulose ethanol. EROI ~ 3-10. EROI ~ 1. Past Easy. Conventional ...

http://www.portlandnetworks.com/client/AFVI/presentations/080512/General/RobertHirsch.pdf

18 Mar 2009 ... EROI Update: Preliminary Results using Toe-to-Heel Air ... oil from politically stable regions (See Unconventional Oil: Tar Sands and Shale Oil - EROI on the .... filling up their gas tank), the EROI would decrease ...

http://netenergy.theoildrum.com/pdf/theoildrum_5183.pdf

U.S. gas production, future projections and the SHALE GAS enthusiasm ..... Energy Sink (EROEI < 1). The Issue is Not Resources – its Deliverability. – GAS ...

http://www.dora.state.co.us/puc/presentations/InformationMeetings/SupplySide/03-09-09CIM2-CriticOfConventional.pdf

o EROI of unconventional gas in the U.S. – esp. shale's. Jeff Vail - “The Renewables Gap”. • Systemic challenges in peak oil mitigation ...

http://www.transitionbloomsbury.org.uk/links_files/Chris Nelder’s Notes on the 2009 ASPO-USA Peak Oil Conference copy.pdf

production in the Marcellus Shale to the economic significance of declining energy return on investment (EROI). Over 100 people attended the meeting despite a .... topics ranging from new tide and wave power technologies to natural gas ...

http://www.fisheries.org/units/aic/pdf/NED 2009 Mid-year report.pdf

Source: Oil and Gas Journal, August 2004 ... EROI = Energy out. - Energy in. Energy in. ER. OI. Oil Shale. Oil Sands ...

http://www.specanada.org/Lloydminster/doc/presentation/20100121_biglarbigi.pdf

Keywords: ecological economics, peak-oil, Hubbert's curve, EROI, complexity, .... oil and gas as major energy sources, with for example, shale oil, tar ...

http://www.esee2009.si/papers/Kerschner-Peak-Oil_from_an_ecological.pdf

Ayhan Demirba§, Gulsin Arslan, and Eroi Pehlivan 627. Compressed Natural Gas (CNG) in Fueled Systems and the Significance of. CNG in Vehicular Transportation ... Technical-Economic Parameters of the New Oil Shale Mining— ...

http://nstl1.nstl.gov.cn/pages/2006/183/71/28(4-8).pdf

Yasuo Ohtsuka Coexistence of Typical Fuel Gas Components Produced in an Air-Blown Coal .... Langmuir Films of Bitumen and Its Fractions Extracted from Oil Shales ... Mevliit Siireyya Koçak, Eroi Ileri, and 3622 Experimental Study of ...

http://nstl1.nstl.gov.cn/pages/2007/19/06/21(6).pdf

17 Jul 2007 ... Coal to liquids, gas to liquids: 5-1 (est.) • Oil sands SAGD: 3 to 1 (mining =higher EROEI). • Oil shale: 3.5 (Shell's fig.) to 2.0 to 1 ...

http://www.ateec.org/ateec_files/documents/seet_2007workshop_pp_peak_oil.pdf

per net unit of energy delivered to society; and 4) relatively low EROI. ..... developed to exploit the Barnett have been applied to other shale gas basins ...

http://www.ctenergy.org/pdf/FromerIRP.pdf

Decreasing EROI Forces Imports …and More ... The Promise of Marcellus Shale Gas. As a Bridging Fuel, Not a Solution. “Use It All Up Before Its All Gone”-Roy ...

http://www.ctenergy.org/pdf/Energy_Security_Workshop_2.pdf

Energy Invested, EROEI), to compare all currently proposed future scenarios ... prospects for oil shale, tar sands, and shale gas have been overstated to ...

http://www.ifg.org/pdf/Searching_PressRelease_web10nov09.pdf

by C Hall - 2003 - Cited by 67

http://www.hubbertpeak.com/cleveland/OilAndCulture.pdf

for simplicity we focus here on the greenhouse gas (GHG) implications. ... approach to oil shale production is to mine and crush the rock, and then heat it in a retort, ... coal production has an EROI of over 80, so conversion to ...

http://iopscience.iop.org/1748-9326/1/1/014004/pdf/1748-9326_1_1_014004.pdf

It is also worth noting that energy return on energy invested (EROI) has fallen .... Other sources of non-conventional oil include heavy oil and oil shales. ... of the All Party Parliamentary Group on Peak Oil & Gas, has also stated ...

http://www.slacc.org.uk/Peak Oil Report.pdf

Oil Sands / Oil Shale? • Huge amounts of natural gas to refine tar sands ... Comparative EROEI. Old oil. 100. Natural gas. 20. Coal. 10-20. Shale Oil ...

http://www.co.clackamas.or.us/docs/sustainability/20080513b.pdf

(EROEI < 1). Increasing Energy Input. In Place Resources. Shale Gas. Coalbed Methane. Tight Gas. Conventional Gas. Energy Profit Ratio versus In Place Gas ...

http://www.aspousa.org/fall2006/presentations/pdf/Hughes_D_NatGas_Boston_2006.pdf

by AE Farrell - 2006 - Cited by 29

http://dynamiccities.org/files-documents/scenarios-transition-dynamics/Brandt and Farrell - Risks of the Oil Transition.pdf

shale, arctic oil, etc., the peak is likely to take place around 2010, ... how much oil and natural gas there is for all of us per head of global population. ... This is the notion of EROI, that is, Energy Return on Energy Investment. ...

http://www.itmdi-energy.com/pdf/Information/applications/sub120.pdf

12 Apr 2005 ... EROEI ON ETHANOL IS NEGATIVE. ● SHALE OIL ALWAYS MORE EXPENSIVE THAN ... Oil & Gas Journal 7/28/2003. Revolutionary. Evolutionary ...

http://www.energyseer.com/Unconventional Oil.pdf

efficiency and cost, oil and gas far surpass all existing substitutes. ..... Substitutes such as shale oil are costly and have low or negative net energy yields. ... and declining costs, but its EROEI too is low, and, ...

http://www.religiousconsultation.org/Oil_and_Gas_Supplies_Are_Running_Out.pdf

I have not shown maps of coal bed methane and shale gas, but they are also ... is to improve Energy Return on Energy Invested (EROEI), relative to what it ...

http://www.ipi.ir/Articles\EnergyBulletin.pdf

of sand and shales on crossplot. Too low in prolific gas zones. Dont use under severe hole condi .... Micro lai eroi o g or Proximit y -i > pe resist iv i- ...

http://www.onepetro.org/google/Papers/SPE/eLibrary_Papers/spe/1981/81ME/00009619/00009619.pdf?id=00009619&soc=SPE

Most sandstone in the gas-bearing Travis Peak formation has undergone compaction and extensive .... #/4 T. Most eroi A-i. Nocomche Creek field r. NACOGDOCHES CO ... 2 unit and underlying shale (Fig. 4). These relationships suggest ...

http://www.onepetro.org/google/Papers/SPE/eJournal_Papers/spe/1988/FE/03/00015220/00015220.pdf?id=00015220&soc=SPE

by F Blanch - 2008 - Cited by 4

http://www.europabio.org/Biofuels reports/MerrilLynchJune2008.pdf

17 Jan 2008 ... Energy Return on Energy. Invested (EROEI). U. S. oil industry today. Input. Output. Ethanol from corn. Shale oil and oil sands ...

http://www.energy.state.or.us/jk/Peak_Oil_Overview.pdf

by S Roberts - Cited by 3

http://www.arup.com/_assets/_download/download630.pdf

15 Nov 2007 ... the Arctic, or whether we'll be able to explore for oil and gas there ..... Oil shale and tar sands have an. EROI of around four to one or ...

http://www.homerdixon.com/articles/excerpt-new_urgency-thomas_homer-dixon.pdf

by A Verbruggen - Related articles

http://www.aaee.at/2009-IAEE/uploads/fullpaper_iaee09/P_242_Verbruggen_Aviel_24-Aug-2009, 14:25.pdf

unconventional fossil fuels: oil sands, heavy oil, shale gas, LNG alternative energies: solar wind ... importance of energy return on investment (EROI) ...

http://www.gg.uwyo.edu/GEOL3650/ImageGallery/learning_energy.pdf

extraction process of a resource can be initialized as _____. A. EROEI ... A. oil shale. B. gas hydrates. C. hydrothermal veins. D. tar sands. E. limestones ...

http://www.stratseis.com/ACC/PhysicalGeology/practice/tests/Chapter_21_Test.pdf

10 Aug 2009 ... shale deposits to bring this source back from the brink ofextinction. ... part because natural gas can replace oil as a fuel for internal combustion ... invested (EROEI) is another common tenn for it and it can vary from ...

http://www.energy.ca.gov/2009_energypolicy/documents/2009-08-10_workshop/comments/Bryce_Johnson_Comments_TN-52822.pdf

natural gas, or producing it from oil shales, and .... The energy return on investment (EROI) of such fuels, significant fossil fuel ...

http://www.aph.gov.au/senate/Committee/rrat_ctte/completed_inquiries/2004-07/oil_supply/int_report/c04.pdf

sands must be dug, heated, washed (EROEI 1.0-3.0). • oil shale (currently: 0%) ... 4) coal gasification (EROEI<1.0) to offset gas depletion (world) ...

http://www.psychol.ucl.ac.uk/Environment/SelenoLecture.pdf

There was recently considerable opposition to shale gas drilling in New York because of water issues. Declining profitability. This is closely tied to EROEI ...

http://anz.theoildrum.com/pdf/theoildrum_4436.pdf