The use of seismic attributes in the interpretation of the Makó Trough 3D seismic dataset

Péter Szafián, Anita Horváth, D. Hoyer, Gábor Bada (TXM), R., Young (eSeis, Inc., 1155 Dairy Ashford, Suite 600, Houston, TX 77079, USA)

The hydrocarbon exploration activity of TXM Ltd strongly relies on the data acquired through some 1,150 km2 of 3D seismic survey in the Makó Trough area. Since the relatively simple geometry of the trough is associated with a rather complex and diverse lithological composition, and exploration efforts mainly focus on unconventional gas accumulations, our main objective is a high accuracy spatial mapping of the critical petrophysical and geological attributes (e.g. porosity, (over)pressure, lithology), and the construction of a complex 3D geological-geophysical model. A significant part of the information required for this job is hidden in some way in the seismic data, and – using cores, well logs and VSP results – can be unfurled from the reflected seismic waves.

Our poster presents the seismic attributes determined using well data and pre-stack seismic data (e.g. AVO type, absorption, lithology, interval velocity, pore pressure, effective porosity, coherence), and demonstrates how they can help geological interpretation and hydrocarbon evaluation of the Makó Trough.