By OGJ editors
HOUSTON, Oct. 26 -- Two European companies are installing surface facilities after a highly deviated well yielded promising gas flow rates from extremely low-permeability Permian Rotliegend sandstone in the North German basin.
Sustained production is to start as early as spring 2006 at the Leer Z4 well, said Gaz de France Produktion Exploration Deutschland GMBH and BASF's Wintershall AG unit. The companies did not enumerate the test flow rates.
Leer Z4 is near Breinermoor/Ostfriesland, Germany, 75 miles east of Groningen, Netherlands.
The companies drilled the well vertically to 3,000 m, then kicked off and drilled horizontally. The well bore reached 5,683 m measured depth at 4,424 m true vertical depth in the Rotliegend, on which several hydraulic fracs were then performed.
Both companies said 3D seismic data interpretations might reveal similar potential in other tight gas reservoirs near Ostfriesland and elsewhere in Lower Saxony.
