Agenda | All times Central Standard Time (UTC -6)

In this opening session, we provide some (recent) historical perspectives and developments. In addition, we consider "what's hot, what's not" topics such as single versus multi-well performance analyses, assessment of completions efficiency/effectiveness from well performance data, etc. We also consider "next phase" technologies/methodologies for PTA, RTA, and DCA with an invited speaker(s). Lastly, the ATW co-chairs provide orientation and expectations for the workshop.

Case history presentations provide insight through examples of innovative applications of rate-transient and pressure-transient methodologies in various unconventional reservoirs. The intent of these sessions is to assess theoretical considerations, practical applications, and ultimately provide insights into such questions as: What worked? What didn’t work? What’s critical? What are the next steps?
These sessions provide a unique venue for discussions related to the current application and future potential of RTA/PTA methods and how their results may be implemented as part of an integrated asset management workflow.

This session discusses the incorporation of petrophysical heterogeneity, fluid-phase intricacies, and geometrical complexity of unconventional reservoirs in advanced models for PTA/RTA. In particular, modeling and data analysis challenges due to multiple scales of heterogeneity and pore-size dependence of phase saturations will be addressed. The sensitivity of our current modeling approaches to heterogeneity (including anomalous diffusion, reduced-order models, stochastic formulations, etc.) and the quantification of uncertainty in heterogeneity characterization and flow regime identification will be covered. 

Case history presentations provide insight through examples of innovative applications of rate-transient and pressure-transient methodologies in various unconventional reservoirs. The intent of these sessions is to assess theoretical considerations, practical applications, and ultimately provide insights into such questions as: What worked? What didn’t work? What’s critical? What are the next steps?
These sessions provide a unique venue for discussions related to the current application and future potential of RTA/PTA methods and how their results may be implemented as part of an integrated asset management workflow.

This session addresses the effects of phase behavior on production performance. Potential topics include: in-situ fluids vs actual production (nanopore PVT, adsorption, molecular sieving); effects of phase behavior on anomalous diffusion; application of field-wide EOS; variation in fluid characteristics over small distances due to migration or source type; effects of PVT and drawdown schedule on ultimate recovery estimates.

Put simply, understanding and quantifying multi-well interaction in unconventional reservoirs is still problematic. Operators have been experimenting with different "recipes," but no universal success is evident. This session attempts to frame the discussion around such questions as: What has worked? What has not worked? What is missing? What needs to be done? Practical applications of rate-transient analysis and numerical simulation, along with theoretical developments, will be key discussion topics.

Data analytics methods and machine learning algorithms can “scan” large volumes of data, extract relationships between datasets, and highlight internal correlations between different sets of factors. This session will cover the individual elements of the data analytics workflows for unconventional plays. We will cover the processes for data cleansing and metadata collection/standardization. In addition, we consider the analysis and interpretation of the insights provided by various machine learning methods and attempt to address the following questions: What are the present challenges for building the predictive models? What data sources have proven to be the most reliable? What metrics of performance are best suited for quality and reliable insights? What are the best strategies for defining the training and test sets? What are the best uses of the resulting models?

This session will highlight examples of practical approaches along with theoretical solutions. The discussion will include example cases of using analytical and numerical modeling results as a direct input to the workflow or using methodologies to cross-validate key findings and hypothesis. Presentations will consider the effect of data integration on results such as estimation of reservoir properties, drainage volumes/size, and the estimation of hydraulic fracture properties.

Case history presentations provide insight through examples of innovative applications of rate-transient and pressure-transient methodologies in various unconventional reservoirs. The intent of these sessions is to assess theoretical considerations, practical applications, and ultimately provide insights into such questions as: What worked? What didn’t work? What’s critical? What are the next steps?
These sessions provide a unique venue for discussions related to the current application and future potential of RTA/PTA methods and how their results may be implemented as part of an integrated asset management workflow.