Featured Research

from universities, journals, and other organizations

World record in 3-D imaging of porous rocks: Stack of 35 million megapixel-photos

Date:
November 6, 2011
Source:
University of Stuttgart
Summary:
Physicists have established a world record in the field of three-dimensional imaging of porous materials. The scientists have generated the largest and most precise three-dimensional image of the pore structure of sandstone. The image was generated within a project of the Simulation Technology Cluster of Excellence, and contains more than 35 trillion (a number with thirteen digits) voxels.

A team of physicists headed by Prof. Rudolf Hilfer at the Institute for Computational Physics (ICP) of the University Stuttgart has established a world record in the field of three-dimensional imaging of porous materials. The scientists have generated the largest and most precise three-dimensional image of the pore structure of sandstone. The image was generated within a project of the Simulation Technology Cluster of Excellence, and contains more than 35 trillion (a number with thirteen digits) voxels.

Related Articles


It allows now to study the relation between microstructure and physical properties of porous rocks with unprecedented accuracy. Sandstones and porous rocks are of paramount importance for applications such as enhanced oil recovery, carbon dioxide sequestration or groundwater management.

In three-dimensional imaging one discretizes spatial structures similar to digital photographs. Three-dimensional image elements are called voxels -- analogous to pixels for two-dimensional digital photos. The three-dimensional ICP-images systematically resolve the microstructure of a cubic sample of Fontainebleau sandstone over three decades from submillimeter to submicron scales. The microstructure of sandstones is important for the hydraulic properties of many oil reservoirs and thus for efficient production of hydrocarbons. The largest three-dimensional image, that the physicists around Prof. Hilfer have generated, contains 32768 cubed, or 35184372088832, voxels.

For comparison: Medical magnetic resonance images of the human contain roughly 720 million voxel. Even state of the art 3d-images in science and engineering contain only up to 20 billion voxels. Expressed in digital photos a medical image thus corresponds to only 72 photos. The largest ICP-image, however, with 35 trilion voxels amounts to a stack of 35 million such digital photographs. "This world record is important for the physics of porous materials, because it allows for the first time to investigate extremely complex microstructures as a function of resolution," says Hilfer. The microstructure of a porous material determines its elastic, plastic, mechanical, electrical, magnetic, thermal, rheological and hydraulic properties. Inversely, physicists can infer information about the microstructure from measuring such physical properties.

Until now it was not possible to image a sample of several centimetres with a resolution of several hundred nanometres. "To achieve this size and accuracy would require several years of beam time at a particle accelerator such as the European Synchrotron Radiation Facility in Grenoble." explains Hilfer. His team has therefore chosen a different approach. Firstly, the scientists developed theories and methods that allow to compare and to calibrate microstructures. Then they invented algorithms and data structures that allow generating computer models of sufficient size and accuracy. These models were finally digitized and carefully calibrated against real rock samples.


Story Source:

The above story is based on materials provided by University of Stuttgart. Note: Materials may be edited for content and length.


Cite This Page:

University of Stuttgart. "World record in 3-D imaging of porous rocks: Stack of 35 million megapixel-photos." ScienceDaily. ScienceDaily, 6 November 2011. <www.sciencedaily.com/releases/2011/10/111019105512.htm>.
University of Stuttgart. (2011, November 6). World record in 3-D imaging of porous rocks: Stack of 35 million megapixel-photos. ScienceDaily. Retrieved March 30, 2015 from www.sciencedaily.com/releases/2011/10/111019105512.htm
University of Stuttgart. "World record in 3-D imaging of porous rocks: Stack of 35 million megapixel-photos." ScienceDaily. www.sciencedaily.com/releases/2011/10/111019105512.htm (accessed March 30, 2015).

Share This


More From ScienceDaily



More Matter & Energy News

Monday, March 30, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Bionic Ants Could Be Tomorrow's Factory Workers

Bionic Ants Could Be Tomorrow's Factory Workers

Reuters - Innovations Video Online (Mar. 30, 2015) Industrious 3D printed bionic ants working together could toil in the factories of the future, says German technology company Festo. The robotic insects cooperate and coordinate their actions and movements to achieve a common aim. Amy Pollock reports. Video provided by Reuters
Powered by NewsLook.com
Solar Impulse Departs Myanmar for China

Solar Impulse Departs Myanmar for China

AFP (Mar. 30, 2015) Solar Impulse 2 takes off from Myanmar&apos;s second biggest city of Mandalay and heads for China&apos;s Chongqing, the fifth flight of a landmark journey to circumnavigate the globe powered solely by the sun. Duration: 00:42 Video provided by AFP
Powered by NewsLook.com
Internet Giants Drive Into the Electric Vehicle Space

Internet Giants Drive Into the Electric Vehicle Space

Reuters - Business Video Online (Mar. 30, 2015) Internet companies are looking to disrupt the auto industry with new smart e-vehicles, but widespread adoption in Asia may not be cured by new Chinese investments. Pamela Ambler reports. Video provided by Reuters
Powered by NewsLook.com
Inspectors Found Faulty Work Before NYC Blast

Inspectors Found Faulty Work Before NYC Blast

AP (Mar. 27, 2015) An hour before an apparent gas explosion sent flames soaring and debris flying at a Manhattan apartment building, injuring 19 people, utility company inspectors decided the work being done there was faulty. (March 27) Video provided by AP
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:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

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