OREANDA-NEWS. July 28, 2010. Tethys Petroleum Limited ("Tethys" or the "Company") (TSX: TPL) announced today that work had commenced on the re-entry of well G6 on the Akkulka Block in Kazakhstan, this work being aimed at establishing the potential extent of  the Doris oil discovery and associated potential oil accumulations, reported the press-centre of KASE.

Well G6, which is located some 16 km west of the AKD01 Doris discovery well was originally drilled in 2001 by the then contractor on the Akkulka block and  was abandoned without running casing or testing (possibly because of lack of funding) following the drillbit becoming stuck in the hole.

There were indications of hydrocarbon shows encountered in the well and indeed samples of oil recovered from the well have now been located and analysed showing the same API gravity as the oil recovered from the upper zone in the AKD01 well test.  Re-interpretation of the G6 wireline logs based on the data from the recently  drilled AKD02 and AKD01 wells shows the possible presence of moveable hydrocarbons in the well, with the upper sandstone reservoir interval being significantly thicker than that encountered in AKD01.