Case Study: Tullow Oil plc.

Case Study: Tullow Oil plc.
The Link that Closed the Loop
Challenge
In its journey to improve and
standardize prospect volumetrics
and risk analysis, Tullow Oil
plc. (Tullow) implemented new
processes and installed new
software. As a result, Tullow
knew that their exploration
results were getting better, but
how could they confirm this in
an objective and undisputable
way and how could they spot
potential trouble areas?
Solution
Tullow selected RAPT™ – Risk
Analysis and Performance
Tracking software for systematic,
in-depth and exhaustive Performance Tracking.
Results
With RAPT™, all prospect assessments in the portfolio are
tracked and analyzed, as a whole
and down to any desired subgrouping to instantly spot biases
in predictions and to obtain clues
as to what the root causes for the
biases may be.
“In the past, much as we took the greatest care in the analysis of prospect volumetrics and risk, we didn’t
have any appropriate means by which we could check the consistency of our assessments, or the absence
of bias. RAPT™ (Risk Analysis and Portfolio Tracking Software), has provided Tullow with the ability to review
all and any present and past predictions in the perspective of the complete portfolio, and to ensure, through
continuous review and monitoring, that new, hitherto unanticipated bias does not creep into our new prospect
assessments. And all of this, with a very low ongoing software housekeeping effort.”
Jerome Kelly,
Global Exploration Advisor
Tullow Oil plc.
A Continuous, Ever Improving, Prospect Risk Assessment
Quality and Performance Monitoring Process
Over the last decade, and particularly in the past 5 years, Tullow has engaged in a process of refining its
exploration methods to improve prospect resource estimation and risk analysis as an integral part of an
all-encompassing Global Exploration Process. A number of software tools were adopted with the aim of
constraining and standardizing resource
estimation
and risk analysis. Tullow
e
believes that this process has resulted in
gradual
but perceptible gains in explorag
tion
t performance.
For Jerome Kelly, Global Exploration
Advisor
at Tullow, the next stage of this
A
journey
was to see how Tullow could
j
assess
the efficiency of its process.
a
For example, how could they prove the
existence
or non-existence of bias in its
e
pre-drill estimates? Or how could they
know whether their approach to risk analysis was already as good as it could be, or whether they still had
undetected issues to address? And, if the former, how could they reliably monitor that biases were not gradually creeping in?
It was clear to Kelly and his colleagues that performance tracking was the last link in the continuous improvement chain. But performance tracking with spreadsheets is a difficult, limited, and error-prone approach and
that results in limited analysis. Although Tullow believed that its new approach to exploration had been a
major contributing factor to its success in recent years, it lacked a tool that would allow it to mine its exploration results in detail to understand and to quantify the relationship between its processes and outcomes at the
drill-bit.
The ideal solution would be a software solution that allows the systematic conduction of in-depth and exhaustive Performance Tracking, where each prediction, like Gross Rock Volume, Net Pay, Productive Area, Porosity, FVF or Hydrocarbon Saturation, as well as the prediction of Chance factors, is available to be scrutinized
for bias, within a few mouse-clicks.
Confidential ©2011 3es innovation Inc.
All rights reserved. Calgary, AB Canada
Reusing the Wealth of Past Prospect Risk Assessment
Data for Improvement of Future Assessments
RAPT™ Highlights
This directed Tullow towards RAPT™ – Risk Analysis and Performance Tracking from 3esi. RAPT™ provided
a platform where all the stochastic predictions could be fully analyzed on a distribution by distribution basis.
The import adapter provided a fast and convenient means to automate the upload of all the stochastic data
on a consistent and errorless basis. With RAPT™, all the prospect assessments in the Tullow portfolio can
be tracked and analyzed both as a whole, and down to any desired sub-grouping, to allow for instantly spotting any bias in the predictions and
insight as to what the root causes for
the biases may be.
• Assess the ability of your
organization to predict asset
resources in a quantifiable and
undisputable fashion.
• Leverage the ensemble of all
your portfolio risk assessments
to spot systematic biases
• Inspect each and all corners
of all your risk analysis data
systematically and effortlessly
• Drill less dryholes
and uneconomic wells
“The adoption of RAPT™”, says Kelly
“has allowed us to carry out comprehensive Performance Tracking analysis for the first time. We now have, in
RAPT,™ a complete database of all
our pre-drill stochastic predictions and
their post-drill outcomes. We are able
to review the latest predictions within
the perspective of the complete portfolio, but also to re-inspect our historical data at will, as new data and new
evidence becomes available. It provides Tullow’s Global Exploration Leadership Team with a tool that can
rapidly identify any evidence of the existence of bias in the resource and risk evaluation process. “
“As a result, undetected biases in our collective assessments have come to the fore and have prompted initiatives within Exploration to address them. We can now confirm, what we have always known, that continuous
improvement is a never ending process. We now have the means to close the loop, systematically analyze
the health of our risk assessments and measure our progress in a quantifiable manner” said Kelly.
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