Masirah Oil Ltd. started production from Yumna 2, the second development well drilled in Yumna field, offshore Oman. The well was spudded on Dec. 10, 2020, and production started on Jan. 23, 2021.
The well has been producing at a stabilized rate of 9,000 b/d dry oil. The rate is constrained by the size of the downhole electrical submersible pump. Yumna 2 encountered 10 m of Lower Aruma sandstone with a porosity of 21%, proving that good quality reservoir sand is extensive north of Yumna 1. Permeability is about 2,000 md. Reservoir pressure depletion over the first year of production is about 100 psi, confirming that excellent pressure support is provided by a strong aquifer.
The third production well, Yumna 3, was spudded on Jan. 20, 2021, targeting a crestal location in the field to the east and up-dip from the discovery well GAS-1.
Production facilities on the Yumna Mobile Offshore Production Unit (MOPU) are being upgraded to double liquid processing capacity to accommodate production from the three Yumna wells. The upgrade is scheduled to be completed by the end of the first quarter 2021.
Upon completion of Yumna 3, the Shelf Drilling Tenacious jackup rig will relocate to drill the Zakhera prospect located about 12 km south of Yumna field. This exploration well is targeting a look-alike structure to Yumna field.
