Chair: Peter Bastian, Unconventional Gas Resources; Erdal Ozkan, Colorado School of Mines
While advances in drilling, completion, and stimulation were big drivers in the unconventional revolution, challenges for sustained development remain strong. The new perception of unconventional reservoirs raises more questions about reservoir characterization, drilling and completion design, and development optimization. This session will highlight key technical challenges for today and the future, such as
Chairs: Randy Lafollette, Baker Hughes; Jim Sorensen, Energy & Environmental Research Center
Predicting fluid movement in any reservoir requires knowledge of its geological, geochemical, and geomechanical properties. Characterizing these properties in unconventional reservoirs is complicated by their tight nature, complex flow pathways, and variable fluid chemistries and wettability regimes. Understanding these unique properties is crucial to developing production schemes that will improve recovery factors. While standard characterization techniques provide some insight, new approaches are necessary to move forward.
This session will examine
Chairs: Curtis Whitson and Chris Clarkson, University of Calgary; Steve Marinella, CNF
Unconventional reservoirs have unique fluid flow and storage properties that, in-part, are caused by the ultra-fine (often nanoporous) structure and ultra-low (often nanodarcy) permeability in the matrix. While multi-fractured horizontal laterals have provided the necessary surface flow area for economical production, characterization of reservoir parameters and the formation interface is still in an ‘early time’ state. These characterizations are critical for accurate modeling and analysis to understand the impact of completion and production practices and protocols, including chemistry and flow at the interface. This session will focus on the role of laboratory experiments and field applications in evaluating future potential resources, knowledge sharing practices and practices of future possibilities.
Chair: George Waters, Schlumberger
In unconventional reservoirs, the value of data must always be challenged by its cost. Is ignorance bliss, or can we truly improve field recovery via a rigorous data acquisition program? This session will discuss the what, when, how, and why of data acquisition now and in the future.
Chairs: Ahmad Salman, Alta Resources; Randy Lafollette, Baker Hughes
Diagnostics translate reservoir responses into quantifiable representations that attempt to explain what is occurring below ground. The type, pace of utilization, and ease of integration of diagnostics are variables that influence actionable change. This session will discuss ways to advance diagnostics and improve life cycle development in the future.
Questions to consider include
Chairs: Brent Evans, Marathon Oil; Dave Nasse, Shell
The oil and gas industry has attempted to optimize well spacing and completion design in isolation although these items are interdependent. Additionally, operational risk and overcapitalization risk both increase as well spacing has become tighter. The key questions for now and the future are
How do we improve safety and efficiency with simultaneous operations?
How do we avoid or reduce wellbore placement errors?
Chairs: Creties Jenkins, Rose and Associates; Ahmad Salman, Alta Resources
Not only do we need to generate more accurate production forecasts in the future, but we need to attain these more profitably. With this in mind, this session will consider the following discussion questions
Chairs: Olivier Houze, KAPPA; Jim Sorensen, Energy & Environmental Research Center
Calculation of recovery factors depends on our understanding of the system in place, the main drive mechanisms, and the bulk volumes affected by a given well. In unconventional plays, each of these assessments is a challenge. Current recovery factor estimates are largely undocumented. The only thing certain is that they are low, and the main challenge moving forward will be to improve them.
This session will examine the following issues
Chair: Peter Bastian, Unconventional Gas Resources
This session will focus on results-oriented planning for the future.