Ophir Upgrades Tanzania Asset Gas Reserves

Ophir Energy has increased the original 3.4 TCF mean recoverable resource estimate of Blocks 1-3-4 Jodari Field in Tanzania by 700 BCF to 4.1 TCF. It now estimate the total 2C mean recoverable resource estimate for the blocks at 12.6 TCF.

The company is now preparing a DST for the Cretaceous Mzia discovery, with results due in late April. Ophir estimates that a flow test rate of 10-20 mmscf/d would be commercial for development of this asset.

The company said that after completing the Jodari and Mzia testing programme, the Deep Sea Metro 1 will move to drill the Ngisi prospect in Block 4. Ophir estimates the Ngisi mean in-place resources at 1.3 TCF with a 70% chance-of-success. Ngisi-1 will be drilled with two deviated well paths; both of which will test separate compartments of the Ngisi Prospect and the deeper Chewa Discovery, it said.

If successful, this well will increase the mean in-place resource of the Chewa-Pweza-Ngisi hub to 5.8 TCF, or 4.1 TCF mean recoverable resource, and will provide critical scale for gas development from Block 4.