Identifying which completions work in which reservoirs and importantly, which do not, is the key to Canadian horizontal well economics in 2014; and understanding how the optimal frac density, cluster spacing, fluid systems, proppant volumes and pump rates change with lithology is of course the most powerful cost-reduction insight an operator can attain.   But as new wells are drilled in new fields and indeed new formations such as the Swan Hills, Slave Point and Viking the lack of data is impending the rate at which operators can tailor their completions design to optimize recovery at the lowest costs on new wells.   The purpose of the first Horizontal Completions Optimization Western Canada 2014 congress taking place in Calgary on June 24-25, is to collate correlated data on reservoir characteristics and completions design with production performance to determine optimal completions strategies for new wells and reduce the cost of horizontal completions in liquid rich carbonate, shale, waterflooded and layered plays.