Quan, Steve (Central European Petroleum) | Damte, Alula (Central European Petroleum) | Ioughlissen, Arezki (Central European Petroleum) | Rott, Cornelius (Central European Petroleum) | Cho, David (Qeye Lab)
Use of seismic data in exploration has evolved from simple structural mapping in 2D to complex reservoir characterization studies aimed at predicting reservoir properties prior to drilling. The success of these studies hinges on proper assessment of all subsurface data collected throughout the exploration process to determine the hydrocarbon potential of the target. This case study illustrates the exploration process associated with the Guhlen discovery in Brandenburg State, northeastern Germany, from early stage 2D seismic interpretation to a full rock physics study.
The first exploration well was drilled in 2012 based on 2D seismic data into a low permeability, hydrocarbon bearing carbonate reservoir. In order to test a hypothesis that seismic could be used as a tool to identify areas of better porosity within the target interval; a 3D seismic survey was acquired. Once processed and interpreted, a pre-stack inversion was performed that identified undrilled areas of low acoustic impedance and Vp/Vs, which were interpreted to represent good porosity areas based on log data analysis. A well was subsequently drilled in one of these prospective areas, resulting in a discovery with a test flow rate ranking among the highest in the past 20 years.
Presentation Date: Thursday, September 28, 2017
Start Time: 11:25 AM
Presentation Type: ORAL