Talk:Enhanced oil recovery

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:Could you be specific, please? Jens Nielsen 09:12, 29 March 2007 (UTC)
thread_title: Untitled

message: "The project is expected to inject a net 18 million ton CO2 and recover an additional 130 million barrels (21,000,000 m³) of oil, extending the life of the oil field by 25 years [1]. When combusted, this extra volume of oil will produce nearly 60 million ton CO2, so in this case carbon capture and storage in combination with EOR leads to more CO2 emissions than without injection of CO2."
This seems to be too simple. The above comparison is between the combustion of 130 million extra barrels and the combustion of nothing. An appropriate comparison should be between the combustion of the extra barrels and the combustion of the same amount of normally extracted oil. Mghurt (talk) 17:01, 13 May 2008 (UTC)
replies: text: ?  It says that 60 million tons more CO2 is produced from the additional oil.  That 60 millions is the difference between what is produced with CO2 injection and what is produced without it.  The actual net difference would be 60 minus 18.  I think the paragraph is clear and, as far as I know, correct.  TastyCakes (talk) 18:13, 13 May 2008 (UTC)

text: There's a point in there somewhere, but CO2 injection really is a technology aimed at increasing oil production rather than sequestering CO2, at least in this context.  What is likely to happen in practice is those extra barrels "created" for human consumption by CO2 injection will increase the supply, which will decrease the cost, which will increase consumption, at least on a small scale.  I think you are correct, but I'm not sure it's going to make it less confusing to add this kind of pondering to it. TastyCakes (talk) 13:42, 14 May 2008 (UTC)

text: Hmm, ok I don't mind if you change it.  TastyCakes (talk) 19:00, 14 May 2008 (UTC)
thread_title:  more CO2 emissions 

message: I think that other materials are used for this as well.  I think nitrogen is used in the Gulf of Mexico, and seawater in Saudi Arabia, but beyond that I don't know.  Could someone who is knowledgeable please include information on this?  65.167.146.130 (talk) 16:48, 12 January 2009 (UTC)
thread_title:  methods besides CO2 

message: It would be nice to have a brief history section. For example, where, when and by whom was the technique first applied?
By the way, I found this article after reading a The Times article today: Work begins on unlocking oil that could multiply North Sea riches, by Rhoda Buchanan:
* "Oil buried deep under the North Sea could be unlocked by new technology, giving the subsea oil reserves an extra 30 to 40 years of life. Experts estimate that there are three billion barrels of “hard to reach” oil that could be worth about £190 billion. The extraction of this oil is dependent on a process used in the US called enhanced oil recovery (EOR), which will now be researched in the UK. The Centre for North Sea Enhanced Oil Recovery in Aberdeen was opened by Alex Salmond yesterday. It will be led by academics from the University of Edinburgh and Heriot-Watt University. The centre will get funding from the Scottish government and Scottish Enterprise, as well as commercial funding from 2Co Energy."
--Mais oui! (talk) 19:29, 24 May 2012 (UTC)
thread_title:  History? 

message: This section seems a bit biased in favor of this technology.  — Preceding unsigned comment added by 203.248.144.142 (talk) 05:34, 10 October 2013 (UTC)
thread_title:  Plasma pulse 

message: There's quite a bit of misplaced information here about producing syncrude from oil (tar) sands. I've added a headnote to direct interested readers to that topic. This article is about various techniques to stimulate production from conventional crude-oil fields. Thanks, Pete Tillman (talk) 01:21, 26 November 2013 (UTC)
thread_title:  EOR article  is not about oil sands 

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thread_title:  External links modified 

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thread_title:  External links modified 

message: I would like to include the following in the EOR article to include Water-alternating-gas technology, an effective and widely used technology in enhanced oil recovery.
Water-alternating-gas (WAG) injection is another technique employed in EOR.  Water is used in addition to carbon dioxide.  A saline solution is used here so that oil well carbonate formations are not disturbed.1 Water and carbon dioxide are injected into the oil well for larger recovery, as they typically have low miscibility with oil.2 Use of both water and carbon dioxide also lowers the mobility of carbon dioxide, making the gas more effective at displacing the oil in the well.3 According to a study done by Kovscek, using small slugs of both carbon dioxide and water allows for quick recovery of the oil.3  Additionally, in a study done by Dang in 2014, using water with a lower salinity allows for greater oil removal, and greater geochemical interactions.4
References:
[1] Zekri, A. Y., Nasr, M. S., & Al-Shobakyh, A. (2011, January 1). Evaluation of Oil Recovery by Water Alternating Gas (WAG) Injection - Oil-Wet & Water-Wet Systems. Society of Petroleum Engineers. doi:10.2118/143438-MS
[2] Thomas, S. (2007).  Enhanced Oil Recovery—An Overview.  Oil & Gas Science and Technology.  doi:  10.2516/ogst:2007060
[3] Kovscek , A R  Energy conversion and management [0196-8904] yr:2005 vol:46 iss:11-12 pg:1941 -1956   doi: 10.1016/j.enconman.2004.09.009
[4] Dang, C. T. Q., Nghiem, L. X., Chen, Z., Nguyen, N. T. B., & Nguyen, Q. P. (2014, April 12). CO2 Low Salinity Water Alternating Gas: A New Promising Approach for Enhanced Oil Recovery. Society of Petroleum Engineers. doi:10.2118/169071-MS  — Preceding unsigned comment added by Bposson (talk • contribs) 19:22, 5 May 2017 (UTC)
thread_title:  Inclusion of Water-Alternating-Gas 

message: It would be nice to get a subject matter expert's differentiation of EOR from Fracking
DouglasHeld (talk) 16:44, 18 June 2017 (UTC)
thread_title:  Differentiate from fracking? 

message: I'm thinking of expanding or creating the sections above. Below is a list of potential sources to begin this process. Any comments or suggestions would be greatly appreciated.
DOE Information on EOR Usage https://www.energy.gov/fe/science-innovation/oil-gas-research/enhanced-oil-recovery
US EIA Information on total oil Usage https://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?n=pet&s=mcrfpus2&f=a
Summary of the state of EOR at the end of the 20th century http://www.energy.ca.gov/process/pubs/electrotech_opps_tr113836.pdf
A book on EOR. It can be used for its section on "soft issues," like geography and regulation, as well as its economics section. https://app.knovel.com/web/toc.v/cid:kpEORFPDS1/viewerType:toc/root_slug:enhanced-oil-recovery---field-planning-and-development-strategies/url_slug:new-technologies?&issue_id=
Has information on an EOR site in Canada. https://www-sciencedirect-com.proxy.library.cmu.edu/science/article/pii/S1750583616302705?via%3Dihub
A look at some of the potential negative consequences of EOR. https://www.cleanwaterfund.org/publications/EOR-risks
A look at current regulations on EOR in the US. There is a bias to the article, but it still has good information. https://www.nrdc.org/sites/default/files/regulation-eor-carbon-dioxide-sequestration-report.pdf
This source has some good information on the current legal state of EOR in the US. https://www.princeton.edu/~ota/disk3/1978/7807/780707.PDF
I have proper citations for most of these links.
Hhausman (talk) 03:57, 5 April 2018 (UTC)
thread_title:  Potential Expansion/Creation of History & Policy Sections as Well as Canadian Projects 

message: The CO2 EOR projects section is lots of detail about numerous of particular implementations of a particular technology and doesn't seem appropriate here. Perhaps it can be it's own separate page? -- Dough34 (talk) 16:38, 22 November 2018 (UTC)
thread_title:  CO2 EOR projects