Algeria and big discoveries

Exploration history is such that the largest fields in a given basin tend to be discovered early in the exploration cycle, but this has not been the case in Algeria's Ghadames basin.Supergiant Hassi Messaoud field, discovered in 1956, is the basin's and the country's largest oil field, with estimated ultimate recovery (EUR) of 9 billion bbl of 43° gravity oil. It produces from a 900-ft oil column in a Cambrian sandstone reservoir at 11,000 ft in a 1,300 sq km productive area.Ourhoud field, not found until 1994, is second largest, with EUR greater than 1 billion bbl of 40° gravity oil. Its reservoir is a 930-ft oil column in Triassic Argilo-Greseux Inferieur (TAGI) at...

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