Extra-deep azimuthal resistivity improves navigation in a complex Barents Sea reservoir ///

Eni Norge operates Goliat field in the Barents Sea, offshore Norway, Fig. 1. The sand reservoirs are characterized by a large number of faults with relative high dip toward the flank of the structure. The faults are aligned into three main trends. Geochemical studies and formation pressure data clearly indicate lateral separation into several compartments. In addition, stratigraphic barriers reducing or preventing vertical communication have been identified within Kobbe. This challenging combination calls for horizontal production wells for effective drainage. A major challenge requires the 8½-in. Goliat reservoir section to be initiated in the overlaying Snadd shale. To minimize shale exposure in the landing section, aggressive build-up rates are employed, reducing the length required in shale.

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