Heron1 Testing - Gazelle1 curently drilling3 Oct 2019 08:58
Heron-1: Testing during October
Heron-1 was an appraisal of the Petro China-operated T19-46-3 well, located immediately to the north in Block XIX and identified to be sitting in the same structure. Petro Matad believes that the bulk of the 13km2 structure extends into Block XX and the well was targeting mean prospective resources of 25mmbbls in the Lower Tsagaantsav reservoir.
The well encountered a 77m gross interval of a potential oil reservoir, based on log interpretation, within which three zones, totalling 22m (gross), exhibited better porosity and permeability characteristics than typically seen in the Lower Tsagaantsav. In the case of success, there is potential to bring the well onstream soon via Petro China’s central processing facility, located 20km to the north.
Gazelle-1 Well: Updip of proven oil
Gazelle-1 was spudded on 19 September and is expected to take around 35 days to reach a TD of around 2,500m (including logging). The exploration well is located 4.5km south-west of PetroChina’s T19-46-1 oil well and to the west of Heron-1. Gazelle-1 sits up-dip of T19-46-1 on the western flank of the Tamsag Basin and is on trend with the best-producing wells in Block XIX. Reservoir quality has been observed to improve westwards in Block XIX, and should, therefore, be favourable for Gazelle-1.
The well is targeting mean prospective recoverable resources of 13mmbbls. However, this is based on the structural trap and there is potential for further upside in the stratigraphically trapped part of the accumulation. In the event of success, the company expects to be able to complete well-testing operations before the winter shutdown of operations in late November.
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