Ithaca De-Risks Stella Production with Flow Test on 3rd Well

UK-focused independent oil and gas firm Ithaca Energy reported Friday that it has further de-risked its Stella field development in the North Sea with its latest flow test.

Ithaca said the flow test was performed after its third development well on the Stella field, well 30/6a-B1Z, was drilled to a total measured depth subsea of 16,185 feet – during which it intersected high-quality sands across a net reservoir interval of 2,034 feet.

A clean-up flow test was performed on the well. The well flowed at a maximum rate of 12,492 barrels of oil equivalent per day on a 48/64-inch choke – with the full production potential of the well limited by the capacity of the well test equipment on the drilling rig. Fluid samples show that the oil is of high quality, with a gravity of 45-degree API.

The maximum flow rate of 12,492 boepd comprised 7,565 barrels of oil per day and 29.6 million cubic feet of gas per day. The flow rate compared favorably with the results of the two previous Stella development wells, A1 and A2, which achieved maximum flow rates of 10,835 boepd and 10,442 boepd respectively.

Ithaca said that these test results on the first three Stella development wells have served to de-risk the initial annualized production forecast for the Greater Stella Area hub of approximately 30,000 boepd – 16,000 boepd net to Ithaca.

Well 30/6a-B1Z is currently in the process of being suspended, with Ithaca planning to bring it on production without the requirement for any further well intervention.

Following completion of the well suspension operations, the ENSCO 100 (350' ILC) rig will move on to drill the fourth Stella development well – expected to take place by the end of the third quarter of 2014.

Ithaca CEO Les Thomas commented in a company statement:

"We are delighted with the results of the flow test on the third Stella development well, which underline the high quality and deliverability of the reservoir. Combined with the results of the first two wells, we have now de-risked our initial production forecasts for the start-up of the Greater Stella Area production hub."


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