Rock Solid Images, a unit of troubled Aberdeen group OHM, has started a 940sq km (274sq mile) rock physics-driven seismic inversion that encompasses the Jubilee field offshore Ghana in which UK-listed Irish independent Tullow has a large stake.
Houston-headquartered Rock Solid said the inversion was intended to integrate log and core information acquired in the Hyedua-1, Hyedua-2, Mahogany-1, Mahogany-2 and Mahogany-3 wells.
Kenny Goh, senior VP at Kosmos Energy, which is another stakeholder in Jubilee, said: “We are pleased that the recently completed Mahogany-3 well has validated the geological and geophysical models we have worked on with the team at Rock Solid Images.
“The well was drilled in a location identified by Rock Solid Images’ initial seismic inversion, and we particularly look forward to the reservoir property inversion results at the Mahogany Deep formation level, which appears, at this point, to be a separately trapped reservoir, and which we will be further appraising in late-2009.”
Gareth Taylor, of Rock Solid Images, said: “The original seismic inversion we conducted for Kosmos Energy and partners was limited to the West Cape Three Points block and covered 150sq km (44sq miles).
“However, with only the Mahogany-1 well as a calibration point, we successfully predicted the presence of pay in the Mahogany-2 and Mahogany-3 wells, so we are confident we will be able to contribute substantively to a comprehensive appraisal and delineation of this world-class field.”