Core analyses from the Ordovician Macasty shale in two wells on Anticosti Island, Que., “are impressive and compare favorably with producing wells from the Utica formation that occurs in the Eastern Ohio region” and are “very positive indicators for the potential production of hydrocarbons from the Macasty formation,” said Corridor Resources Inc., Halifax.
The Macasty formation is the lateral equivalent of the Utica formation in eastern Ohio, Corridor noted. The Petrolia/Corridor Princeton Lake and High Cliff wells on Anticosti Island were drilled in the fall of 2012. Corridor and Petrolia hold 1.5 million gross acres of licenses on the Island.
The wells intersected 90 m and 57 m, respectively, of highly organic Macasty formation. The cores were sampled at 50-cm intervals. Weatherford analyzed the Princeton Lake core and TerraTek examined the High Cliff core.
The results provided an average of 4% total organic carbon in both wells. It is important to note that TOC averaged 5.5% through a 10-m section at the High Cliff well, with the highest TOC measured at 7.1%. Princeton Lake TOC averaged 6% through a 10-m section with the highest TOC measured at 7.5%.
The results include hydrocarbon saturation levels as measured by the S1 (free hydrocarbons in pore spaces) at an average of 5.7 mg/g at Princeton Lake and 4.6 mg/g at High Cliff through the 10-m sections. The analyses also confirmed the Macasty formation is in the oil window at both wellsites.
Corridor will provide updates on further analytical results from the three wells drilled in the 2012 Petrolia/Corridor program on the island as they become available. The results will be helpful in determining locations for the next stage of the resource development program on Anticosti.
Corridor intends to engage Sproule Associates Ltd. to update the Anticosti Macasty resource estimate that was effective June 1, 2011 (OGJ Online, Sept. 4, 2012).