Kazakhstan

UK independent Tethys Petroleum Ltd. said drilling reached 11,200 ft in what is interpreted to be Triassic at AKD01, its first deep well in the Akkulka Block in southern Kazakhstan.

By OGJ editors
HOUSTON, Sept. 8
– UK independent Tethys Petroleum Ltd. said drilling reached 11,200 ft in what is interpreted to be Triassic at AKD01, its first deep well in the Akkulka Block in southern Kazakhstan.

The well has targets in the Cretaceous-Jurassic sequence and Triassic. Hydrocarbon indications were observed on electric logs of the upper part of the interval as well as while drilling, the company said.

Independent petrophysical analysis confirmed the interpretation of movable hydrocarbons in at least two zones in the Lower Cretaceous-Jurassic interval that may contain oil and-or gas-condensate.

Large Urga gas-condensate field south of the AKD01 well in northern Uzbekistan produces from the Jurassic sequence in a similar structural position. Tethys plans to case this section before drilling ahead and will production test these intervals after the well reaches total depth.

Oil and gas shows have also been evident while drilling the Triassic. Work is under way to evaluate the potential for deeper Triassic reservoirs, and based on this the planned total depth for the well will be determined. The Triassic sequence is one of the major productive horizons in oil fields in the Mangyshlak area southwest of Akkulka.

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