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Quebec Utica shale gas flow rates encouraging

By OGJ editors
HOUSTON, Feb. 23
-- A horizontal exploration well in Ordovician Utica shale in Quebec’s St. Lawrence Lowlands is flowing gas at 5 MMcfd of gas about 3 weeks after its initial rate of more than 12 MMcfd.

The Talisman Energy Inc. St. Edouard-1A well has a 1,000-m lateral with eight frac stages in Middle Utica. Clean-up and flow back began Jan. 29 at more than 12 MMcfd, and the well averaged more than 6 MMcfd during the test, said partner Questerre Energy Corp., Calgary.

The 5 MMcfd rate is at 640 psi flowing tubing pressure on a 5/8-in. choke. The extended production test continues.

During completion, microseismic data were recorded using the St. Edouard-1 vertical hole as a monitoring well. Preliminary analysis indicates the fracs were successful in stimulating sufficient rock volume in the entire Utica sequence, Questerre said.

The initial rates from St. Edouard exceed Questerre’s internal threshold for commercial production on a per well basis based on targeted development costs, the company said. Talisman and Questerre are evaluating pipeline options to tie in the well.


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