American Oil and Gas Reporter - November 2015 - 47

the process. The company needed to analyze data from thousands of wells, and
deterministic sampling increased forecasting error. So it employed solutions
that aggregated, analyzed and forecast
well and reservoir production, automatically detected and cleansed bad data, and
published the results throughout the company.
Comparing real-time production data
rates and type curves against forecast
trends allows companies to:
* Quickly and efficiently identify
wells that require remediation;
* Segment a field through well profile
clustering; and
* Ratify from a field, reservoir or
well perspective whether production falls
within confidence intervals of predictions,
and act accordingly.
With advanced analytical methodologies, organizations can perform multivariate analysis on disparate upstream
datasets-both operational and nonoperational-to evaluate and determine those
variables that either inhibit or improve
well performance (Figure 3). Combining
predictive and descriptive analytical workflows to explore the data allows analysts
to detect hidden patterns and identify
trends in a complex system.
Adopting data-driven models improves
efficiency and enables significant discoveries of influential parameters used
to address issues that adversely affect

production, without relying solely on first
principles. For example, many production
inhibitors, such as skin damage and sanding, can be predicted before they happen.
However, the predictive model relies on
insights from analyzing exploratory data,
which in turn, aggregates and integrates
data from across geoscientific silos. As
such, optimizing production is an iterative
process that requires data from multiple
disciplines.
Important results come from production
performance studies that embrace an automatic methodology to characterize impairment, classify wells as good or bad
candidates for stimulation, predict performance outcomes of particular operational parameters, and increase production
with faster decision cycles. These studies
enable geoscientists to profile wells into
clusters that infer field segmentation.
Deep Learning Methods
Implementing supervised and unsupervised pattern recognition techniques
lends credence and supports reservoir
characterization by adopting advanced
analytical methodologies on seismic profile
workflows that integrate seismic images
and derived attributes as input space for
a deep learning solution. A simple preprocessing technique creates many small
image patches from larger images. These
patches reduce the number of features
required to represent an image, and can

FIGURE 2
Forecasting Supplies Robust Estimates for Ultimate Recoveries

NOVEMBER 2015 47



American Oil and Gas Reporter - November 2015

Table of Contents for the Digital Edition of American Oil and Gas Reporter - November 2015

Contents
American Oil and Gas Reporter - November 2015 - Cover1
American Oil and Gas Reporter - November 2015 - Cover2
American Oil and Gas Reporter - November 2015 - Contents
American Oil and Gas Reporter - November 2015 - 4
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American Oil and Gas Reporter - November 2015 - Cover3
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