of;
Petroleum;
Engineering,;
Reservoir;
Geophysics;
Group,;
Edinburgh;
Time-lapse;
Project,Heriot-Watt;
University,;
Edinburgh;
EH14;
4AS,;
UK;
Institute;
of;
Geophysics;
and;
Extraterrestrial;
Physics,;
TU;
Braunschweig,;
Mendelssohnstr.;
3,;
38106;
Braunschweig,;
Germany;