In today's low price environment, maximizing productivity and hydrocarbon recovery while reducing cost has become more critical than ever. In many resource plays, factory style completion campaigns using high rate / volume fracture treatments have become the accepted norm. However, is that really the optimum design to maximize productivity and net present value (NPV) of the asset?

This paper will present a new style of statistical analysis of the well performance of approximately 2,000 Montney / Doig horizontal gas wells completed since 2010. This analysis will review the important parameters to determine the effectiveness of the completion designs, such as:

  • Fracture fluid systems;

  • Open hole or cased hole multi-stage systems;

  • Number of fracture stages / fracture spacing;

  • Size of fractures, proppant tonnage per well;

  • Cost.

The analysis was performed based upon normalized parameters including:

  • Cumulative production at 3 and 12 months;

  • Cumulative production: per proppant tonnage; completed well length; number of fracture stages; and completion cost.

The study will cover an overall review of the entire Montney / Doig gas fairway, as well as focus on an individual ‘high activity’ area of the Montney. This area includes some operator specific well performance comparisons.

This paper will outline the importance of applying advanced well performance analysis techniques to determine the efficiencies of specific completion and fracture designs. This illustrates the importance of looking back in order to optimize future completions. This paper reinforces the need to move completion designs from the current ‘operational effectiveness’ mode of fracture designs, to a ‘fracture effectiveness’ mode provided by optimizing designs to achieve higher recoveries and improved economics.

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