BG-Ophir hit gas discovery offshore Tanzania

BG Group and Ophir Energy PLC reported a ninth gas discovery in Tanzania at the Mkizi-1 well on offshore Block 1.

The well encountered gas pay in three reservoir intervals in a stacked channel complex of Tertiary age. Net pay totaled 33 m, and reservoir quality was high with all three intervals exhibiting excellent porosities and permeabilities.

Estimates of the mean recoverable resource from the discovery are in line with Ophir’s predrill expectations of 600 bcf.

Mkizi-1 is in 1,301 m of water between the pair’s Mzia and Jodari discoveries on Block 1. BG Group is operator with 60% interest and Ophir has 40% of blocks 1, 3, and 4.

The Deepsea Metro I drillship will drill two appraisal wells, including a drillstem test, at the Pweza discovery on Block 4. This will be the first DST of the series of Block 4 discoveries, following on from the successful tests in Block 1 on Mzia and Jodari.

Ophir Energy said, “Appraisal of Pweza will look to further underpin volumes in Block 4 which were upgraded with the recent success of the Ngisi drilling program, while the DST is the final stage in firming up the commerciality of the resource across the Chewa-Pweza-Ngisi hub.”

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