Kosmos Energy discovers gas offshore Mauritania

offshoregas-BryanBurke-flickrBased on the preliminary analysis of drilling results and intermediate logging to a depth of 4,630 metres, Tortue-1 has intersected 107 metres of net hydrocarbon pay. (Image source: Bryan Burke/Flickr)Kosmos Energy has made a significant gas discovery in the Tortue-1 exploration well located in Block C-8 offshore Mauritania

Based on the preliminary analysis of drilling results and intermediate logging to a depth of 4,630 metres, Tortue-1 has intersected 107 metres of net hydrocarbon pay. The Lower Cenomanian is comprised of three excellent quality multi-Darcy reservoirs totaling 88 metres in thickness over a gross hydrocarbon bearing interval of 160 metres. A fourth zone 19 meters thick was penetrated within the secondary Upper Cenomanian target over a gross hydrocarbon bearing interval of 150 metres.

Kosmos Energy chairman and CEO Andrew G Inglis said, “Volumetrically, the Tortue-1 well has far exceeded our pre-drill expectations and has discovered a large scale gas resource. Our seismic imaging indicates the arial extent of Tortue West could cover approximately 90 sq km that will be better defined with appraisal drilling. Importantly, given the results and excellent well-to-seismic calibration, the Tortue-1 well has significantly de-risked our large and under-explored 27,000 sq km deepwater position in Mauritania. Our acreage offers substantial follow-on prospects including a diverse range of Cenomanian as well as deeper Cretaceous plays and fairways with strong dependency.” In order to dealienate the Tortue West discovery, an appraisal programme is being planned.

Additionally, the Marsouin-1 exploration well, located in the central part of Block C-8, is expected to spud in Q3 2015. An exploration programme is also being formulated to test the other prospects in the Greater Tortue Complex, which extends into the St. Louis Offshore Profond Block in Senegal, including the Tortue East and Tortue North prospects. To support the programme, a 3D seismic survey acquired over the company’s Senegal blocks is currently being processed and interpreted.

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