Tethys Oil of Sweden said in a statement last week that the Saiwan East-4 well (SE-4) on Block 4 onshore the Sultanate of Oman has successfully been drilled and preliminary results evaluated.
The well was drilled 2.9 kilometres to the southeast of the Saiwan East-3 well to a total depth of 2,463 metres. Several oil bearing layers were encountered including the Khufai limestone formation from which 78 metres of core was extracted. Above the Khufai formation oil was also encountered in the Buah and Miqrat formations. Exploration objectives below the Khufai were drilled without any significant oil shows.
As yet the properties and quality of the oils encountered in the various layers have not been ascertained but the results are sufficiently encouraging to warrant production tests that will be carried out later this year using a smaller rig.
The current rig has been moved to the Farha South location on Block 3 to drill the well FS-4 which is being drilled as a production well close to FS-3 that was drilled last year.
Tethys has a 30% interest in Blocks 3 and 4. It’s partners are Mitsui E&P Middle East B.V. with 20% and the operator CC Energy Development S.A.L. (Oman branch) holding the remaining 50%
Tethys Oil is focused on identification and development for production of oil and natural gas assets. Tethys’ core area of operations is Oman, where the company is the second largest onshore oil and gas concession-holder with licence interests in three onshore blocks.
