Tethys Encouraged by Testing of Heavy Oil Zones in Oman

The testing operations of the heavy oil zones encountered in East Saiwan-2 on Block 4 onshore Oman have been concluded.

The objective of the testing was to verify mobility and produce heavy oil to surface and to assess possible production rates from the more than 400 meters of gross heavy oil column. Testing operations have now been completed, and the results so far have been cautiously encouraging. Liquid samples have been obtained from 3 of the 4 zones tested. Further evaluation of these samples will now be conducted. However, the results suggest that any potential production from the heavy oil in East Saiwan will require enhanced oil recovery techniques. No recovery factors can be established with the current data.

"The East Saiwan heavy oil remains an interesting project in our portfolio, but it will most probably involve considerable future investment. The work on the heavy oil in 2010 will be focused on defining the structure to get a better understanding of the resource base using among others data from the ongoing 3D seismic programme. Overall focus in 2010 will continue to be on the conventional light oil discoveries made in 2009 on Blocks 3 and 4, and to bring these into production," commented Tethys' Managing Director Magnus Nordin.

Tethys has a 50 percent interest in the liceses covering Blocks 3 and 4. Consolidated Contractors Energy Development (Oman) Ltd holds the remaining 50 percent and is operator.



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