Featured Research

from universities, journals, and other organizations

New Insights Into Costly Destruction Of Subsurface Petroleum

Date:
September 29, 2006
Source:
American Chemical Society
Summary:
Scientists are reporting an advance toward understanding and possibly combating a natural process that destroys billions of dollars worth of subsurface petroleum. Called biodegradation, it occurs as bacteria and other microbes metabolize, or feed on, organic compounds present in crude oil.

Scientists are reporting an advance toward understanding and possibly combating a natural process that destroys billions of dollars worth of subsurface petroleum. Called biodegradation, it occurs as bacteria and other microbes metabolize, or feed on, organic compounds present in crude oil.

The microbes remove the most valuable hydrocarbon compounds and change the most valuable lighter crude oils into lower-value heavy oils, bitumen and tars.

Less gasoline can be produced from these heavier oils, which also are expensive to pump out of the ground and contain undesirable amounts of sulfur and metals. Most of the world's known petroleum is biodegraded oil, especially the severely biodegraded giant Athabasca tar sands and the Orinoco bitumen in Canada and Venezuela, respectively.

Scientists have been trying to identify biodegradation-limiting nutrients - nutrients that are essential for growth of microbes in subsurface oil deposits. Reducing availability of those nutrients could slow the natural destruction of petroleum.

In the new research, University of Calgary researcher T. B. P. Oldenburg and colleagues conclude that nitrogen probably is not the limiting nutritional factor, as once believed.

Their report, scheduled for the Sept. 20 issue of ACS' Energy & Fuels suggests that other essential microbial nutrients, such as phosphorus, are the limiting factors in the growth of biodegradation microbes.


Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Cite This Page:

American Chemical Society. "New Insights Into Costly Destruction Of Subsurface Petroleum." ScienceDaily. ScienceDaily, 29 September 2006. <www.sciencedaily.com/releases/2006/09/060925114000.htm>.
American Chemical Society. (2006, September 29). New Insights Into Costly Destruction Of Subsurface Petroleum. ScienceDaily. Retrieved July 26, 2014 from www.sciencedaily.com/releases/2006/09/060925114000.htm
American Chemical Society. "New Insights Into Costly Destruction Of Subsurface Petroleum." ScienceDaily. www.sciencedaily.com/releases/2006/09/060925114000.htm (accessed July 26, 2014).

Share This




More Earth & Climate News

Saturday, July 26, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Virginia Governor Tours Tornado Aftermath

Virginia Governor Tours Tornado Aftermath

AP (July 25, 2014) Virginia Gov. Terry McAuliffe toured the Cherrystone Family Camping and RV Resort on the Chesapeake Bay today, a day after it was hit by a tornado. The storm claimed two lives and injured dozens of others. (July 25) Video provided by AP
Powered by NewsLook.com
Europe's Highest Train Turns 80 in French Pyrenees

Europe's Highest Train Turns 80 in French Pyrenees

AFP (July 25, 2014) Europe's highest train, the little train of Artouste in the French Pyrenees, celebrates its 80th birthday. Duration: 01:05 Video provided by AFP
Powered by NewsLook.com
Goma Cheese Brings Whiff of New Hope to DRC

Goma Cheese Brings Whiff of New Hope to DRC

Reuters - Business Video Online (July 24, 2014) The eastern region of the Democratic Republic of Congo, mainly known for conflict and instability, is an unlikely place for the production of fine cheese. But a farm in the village of Masisi, in North Kivu is slowly transforming perceptions of the area. Known simply as Goma cheese, the Congolese version of Dutch gouda has gained popularity through out the region. Ciara Sutton reports. Video provided by Reuters
Powered by NewsLook.com
Bill Gates: Health, Agriculture Key to Africa's Development

Bill Gates: Health, Agriculture Key to Africa's Development

AFP (July 24, 2014) Health and agriculture development are key if African countries are to overcome poverty and grow, US software billionaire Bill Gates said Thursday, as he received an honourary degree in Ethiopia. Duration: 00:36 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins