Providence Resources P.l.c. provided a technical update on the Barryroe oil discovery in the North Celtic Sea Basin, offshore Ireland. Providence (80 percent) operates Barryroe on behalf of its partner Lansdowne Oil and Gas plc. The area lies in around 100-meter water depth and is approximately 50 kilometers off the south coast of Ireland.
In March 2012, Providence announced the successful flow testing of both oil and gas from the 48/24-10z appraisal well (see RNS of March 15 and March 23, respectively). This 48/24-10z well was the second well to be tested in the basal sands and the sixth well to be drilled on the Barryroe oil discovery, in which all wells have successfully logged hydrocarbons.
In addition to carrying out comprehensive flow testing, significant data acquisition was also carried out utilizing modern wire-line equipment. The objective of the 48/24-10z appraisal well was to capture the most comprehensive amount of data that could be used in conjunction with the data from the five previously drilled wells (most of which were drilled in the 1970's, and one was drilled in 1990) as well as the 3D data from the 2011 seismic program.
The newly acquired wire-line log data have now been used to evaluate the potential to directly map the hydrocarbon bearing basal reservoir sands, which were successfully tested in the most recent Barryroe 48/24-10z well. Geokinetics, a U.S. based seismic processing company, has carried out an evaluation of the seismic response of the main basal hydrocarbon bearing reservoir interval.
This modeling has confirmed that the basal reservoir sandstone package has a defined seismic response which can be detected clearly within the inverted 3D seismic volume. A preliminary review of the inverted 3D seismic volume indicates that the reservoir sequence is widely developed in the Barryroe area. Detailed interpretation of the inverted seismic data has now commenced and will be used to better define the static oil in place estimates for the Barryroe accumulation. The results from this work are expected later this summer.
"The results of the most recent seismic modeling and inversion are exceptionally encouraging as they confirm our ability to seismically image the Barryroe basal sandstone package, which tested at such great rates in the recent well. This materially helps in the mapping of the Barryroe license area. The preliminary work also confirms that the reservoir is widely developed, which is very positive both in terms of incremental resource potential as well as our ability to accurately assess its distribution," said Providence Technical Director John O'Sullivan said.
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