Rathlin Energy (UL) Ltd. started a test program for West Newton WNB-1z and WNA-2 appraisal wells at PEDL183, East Yorkshire.
At WNB-1z, 118 m of hydrocarbon column was drilled, and 44 m of the Kirkham Abbey formation was perforated. The formation is naturally fractured, confirmed by imaging log, core, SEM photomicrographs and fluid injection rates of 5.7 bbl/min (8,208 b/d). Good quality gas was recovered and incinerated at surface. Gas analysis indicates about 90% methane, 4.5% ethane, and no H2S, which matches signatures from WNA-1 and WNA-2 wells.
Indications are that the formation is sensitive to water, specifically in matrix, and the Kirkham Abbey formation is suspected to have been subject to near wellbore formation damage during drilling and completions, preventing optimum hydrocarbon flow.
WNB-1z is currently shut in with gauges in hole recording data and pressure build up. Remedial action will be informed by pressure data recorded into October, results from the WNA-2 test, and an independent technical review. Following remedial interventions, the well is expected to be suspended as a potential producer.
At WNA-2, 65 m of hydrocarbon column was drilled. Little fluid was lost to the formation compared to WNB-1z. A previously completed zone at WNA-2 has been shut in for about 2 years with very little fluid head on the perforated interval. An extended well test is being mobilized to site.
Reabold Resources PLC holds 56% economic interest in West Newton via its 59% holding in Rathlin Energy (UK) Ltd., the operator of license PEDL 183 (27%). Union Jack Oil PLC holds 16.66% interest.