The Taguelmit block is located in South Eastern onshore Tunisia, at the vicinity of Ben Guerdane city and limited to the East by the Libyan border.
The TALGUELMIT block is located in the eastern part of the southern Tunisia. It comprises part of the subcropping Bou Nemcha high, which is the eastern end of the Telemzane Arch, and part of the Jeffara Basin. The Bou Nemcha high was affected by Mid-Late Paleozoic uplift, while the Jeffara Basin was initiated since the carboniferous as a subsiding area with titled fault blocks.
On the Bou Nemcha high, the Cambrian sandstones are uncomfortably overlain by the Permo-Carboniferous clastics and carbonates. During the Upper Permian, the area acted as a shallow marine mixed platform including patch reefs and bordered by a nearby northwest-southeast trending reef barrier. The Mesozoic section is unconformable on the Permian and largely outcrops along the Dahar escarpments, situated toward the eastern part of the block.
Reservoirs and Seals
- The Ordovician sandstones of Kasbeh Leguine and Bir Ben Tartar are the main reservoirs in this block. The shaly level at the Bir Ben Tartar Formation (Middle Ordovician) is the seal for the Kasbeh Leguine reservoir and the Jeffara (Late Ordovician) shale, considered as a seal for the Bir Ben Tartar.
- The Triassic Ras Hamia sandstone is considered as the only Mesozoic reservoir in the Taguelmit block as indicated by gas and oil shows encountered in the Triassic section in BG-1 and J-1 wells.
- The Cambrian sandstone of Sidi Toui and Permian reefs could be additional targets.
- The Early Silurian Tannezuft “Hot Shales” are considered as the main source rock at least in the south-southeast of the block.
- The Callovian Kchem El Mit black shales are designed as the main source rock at least in the northeast of the block.
Additional source potential may be provided by the Carnian shales in the northeast of the block
- A variety of different structural trap types occur including fault related traps, anticlines, pinch out, reef anomalies and possibly unconformities related traps.