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Monday, 24 January 2011 14:27

Bert Bril, one of the key developers behind OpendTect made a little SEG-Y zip program to compress SEG-Y files. The program is available for free from sourceforge.net.

Bert claims that the program reduces SEG-Y files to at least 50% without a loss that is detectable in the shape of the FFT spectrum. Higher reduction factors (up to 4x) can be achieved by setting the compression level higher. Some deterioration may occur but the effects remain random in frequency. The program is tiny (like 30kb), so that it can easily be sent together with compressed data. The program removes spikes from the data before compressing. Setting the compression level to zero SEG-Y zip effectively becomes a despiking tool and can be used as such.

dGB Earth Sciences Donates Software To Pitt-Bradford Petroleum Technology Program

Wednesday, 03 November 2010 13:10

dGB Earth Sciences, a leading provider of seismic interpretation software to the oil and gas industry, has donated six commercial licenses for the plugins of its OpendTect software worth to the University of Pittsburgh at Bradford’s Petroleum Technology program.

Dr. Jamal Assad, visiting professor of petroleum technology, secured the software. He said that students in the petroleum technology program will use the software to interpret seismic data on oil and gas reserves in Pennsylvania.

In addition to the software, students will also have access to dGB’s Open Seismic Repository, which contains seismic data, interpreted horizons and well data from a number of global locations.

Assad said that the software works by taking seismic and geological data and turning it into a three-dimensional representation that can be used to pinpoint the location of oil or gas and the best, most efficient way to reach and extract it.

Assad said students who can use the software will be in demand with operating companies that are currently exploring and extracting natural gas from the Marcellus Shale layer of Pennsylvania.

Assad hopes that the OpendTect acquisition will be the first tool to make Pitt-Bradford a technology center for petroleum research and teaching.

Pitt-Bradford is the first university in Pennsylvania to receive academic licenses from dGB. In Europe, the Middle East, Africa, Asia and the in the Americas, about 200 universities have already incorporated OpendTect into their teaching and research with more than 1,000 commercial licenses.

Jan Stellingwerff Beintema, marketing director of dGB Earth Sciences, said, “Supporting the next generation of geoscientists and geologists is core to everything we do at dGB. That’s why thousands of students worldwide are today able to familiarize themselves with OpendTect and some of the most advanced specialist seismic interpretation tools in the industry today. We welcome the University of Pittsburgh at Bradford to the program and look forward to working with them as they tackle some of Pennsylvania’s oil and gas and seismic interpretation challenges.”

Pitt-Bradford’s petroleum technology program was restored four years ago to help address the increasing needs of the oil and gas industry and the residents of the region. Assad has more than 18 years of academic and industrial experience in oil and gas and has served as a visiting faculty member at California State University and as a co-director of the West Coast Geo-Technology Training Center in Bakersfield, Calif.

dGB Earth Sciences Announces Beta Version Of OpendTect 4.2

Thursday, 21 October 2010 14:17

dGB Earth Sciences, the leading provider of open source seismic interpretation software to the oil and gas industry, has announced the beta version of OpendTect 4.2. The new version was demonstrated at SEG this week and will be available to customers before the end of 2010.

OpendTect 4.2 comes with new HorizonCube and Well Correlation plugins, as well as a host of new interpretation, editing and visualization features.

Benefits to users include:

·        A significant increase in the number and density of mapped horizons through the HorizonCube plugin, resulting in improved quantitative rock property estimation, enhanced definitions of stratigraphic traps, more accurate and robust geological models and the ability for interpreters to extract more from their high resolution seismic data.

·        A well correlation tool with a new stratigraphic framework and interactive viewer from which users can correlate and update well markers and horizons.

·        The ability to carry out low frequency model building using a greater number of horizons generated from the HorizonCube plugin, giving more accurate inversion results and generating models which honour the seismic more closely.

·        Significant new cross plotting features, including cross-plot colour coding and the ability to create probability density functions (PDFs) in the cross plot domain to create rock property probability volumes.

·        A host of new visualization, editing and data integration features, including an enhanced 2D viewer; new directional lighting capabilities to highlight geological objects; the ability to post OpendTect 4.2 data in Google Earth; and the integration of OpendTect within Wacom’s interactive pen display and PC tablets for greater accuracy and an enhanced workflow.

“When we look to enhance OpendTect, we always ask ourselves one central question --How can we support users further in extracting maximum value from multiple volumes of often highly complex seismic and geological data?” said Paul de Groot, president and CEO of dGB Earth Sciences.

“With our highly innovative HorizonCube and Well Correlation plugins, the variety of new interpretation, editing and visualization features, and even the ability to transfer data to Google Earth, OpendTect 4.2 addresses this question head-on. Over the coming months, we look forward to further developing and testing this highly practical but sophisticated tool which leads to a greater understanding and interpretation of structural geologies.”

dGB Earth Sciences, a privately owned company based in the Netherlands and with 27 employees, has been providing seismic interpretation solutions to the oil and gas industry since 1995. dGB’s flagship seismic interpretation solution, OpendTect, is the only available open source seismic interpretation platform used in the oil and gas industry today, allowing the visualization and interpretation of multi-volume seismic data. OpendTect, which is available at no cost under the GNU GPL license, provides sophisticated interactive attribute analysis. dGB and its partners have also developed a wide variety of commercial plugins for customers (companies are also encouraged to develop their own customised plugins). These include plugins relating to attribute and processing analysis, sequence stratigraphy, fluid migration, rock property predictions and velocity modelling.

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