external links

DRP: Digital Rock Physics

1 senior researcher position granted by a major oil company

Principal Investigator: Erik H. Saenger

Project duration: January - December 2013

Project homepage: DRP

LFSP: Low Frequency Seismic Partnership

1 senior researcher position granted by a major oil company

Principal Investigators: Erik H. Saenger and Rob Habiger

Project duration: June 2010 - May 2013

Project homepage: LFSP

The Low Frequency Seismic Partnership (LFSP) was a joint industry project among oil and gas producers, service provider, and university partners for the research and development of low frequency (LF) seismic technologies for enhanced application to the detection and characterization of hydrocarbon reservoirs.

The consortium was formed in 2009 with a three year program into 2013. The LFSP's technical program consisted of the following elements:

The first year of the technical program was dedicated to acquiring two low frequency passive seismic data sets in a controlled experiment over a well characterized gas storage reservoir in both the full and drawn down state. Deliverables include the raw data from this experiment along with the processed and interpreted results using standard workflows and research reports including the latest results in numerics/modeling, theoretical concepts, and laboratory measurements.

Digital rock physics: Calibration with laboratory measurements

24 hours measurement time granted by the Paul Scherrer Institute, Switzerland

Principal Investigator: Claudio Madonna

Project duration: July 6-7 2011

Project homepage: Calibration

The TOMCAT-beamline of the Swiss Light Source (SLS) at the Paul Scherrer Institute (Villingen, Switzerland) is a high-energy high-precision X-ray source. TOMCAT stands for tomographic microscopy and coherent radiology experiments and it allows conducting ultra-high-resolution Synchrotron-based X-ray Tomographic Microscopy (SRXTM).

To support our research on attenuation and dispersion mechanisms of seismic waves in partially saturated porous rocks, both in the lab and computationally, we also use the TOMCAT-facilities. The discrepancy between laboratory measurements and numerical calculations of effective elastic parameters of porous rocks may be due to micro-scale pores or fractures that we cannot resolve with the standard micro-CT imaging techniques. The TOMCAT-experiments increase the image-resolution of our samples significantly and they provide new insights into the 3D micro-scale pore structures of our samples.

Also, we perform experiments at different saturation levels of the porous rocks and with different fluids. From this data we can determine the 3D distribution of fluid patches, which helps improve the 3D numerical wave propagation simulations in partially saturated porous rocks.

The full raw data sets of our TOMCAT-experiments can be found here.