The hundreds of Duvernay wells near Fox Creek, Alberta, Canada are usually fracture stimulated with either slickwater or hybrid slickwater-crosslinked water treatments with a large acid spearhead. There is a 14.6% higher 3-year average cumulative production total for slickwater treated wells versus hybrid fluid system treated wells. Additionally, the slickwater systems have an average 53.8% lower frac chemical cost compared to the 50/50 slickwater-crosslinked water hybrids frac stimulation systems. There is a very linear trend between the total volume of fluid pumped to the total 2 year BOE production; the higher the treatment fluid volume, the greater the stimulated reservoir volume (SRV) and the higher the resulting production. The production case study shows that wells treated with an average of 25,000 m3 of water have an 80% higher average 2-year cumulative production result compared to wells that only use an average of 13,000 m3.
The average proppant tonnage per stage varies with 140 tonnes per stage outperforming 100 tonnes per stage by 31.6% cumulative BOE production per stage at 2 years. However larger tonnes per stage showing a diminishing benefit when looking at the 2 year BOE production totals. The total production versus total proppant used (1000 tonnes to 3500 tonnes per well) is also examined showing an overall total well production benefit. Comparing the total proppant placed versus cumulative BOE is shows a positive. It does appear that the more proppant that is placed the higher the production rate and total long term production.