March 23, 2006


Description

Look-backs on major capital projects have suggested that technical teams did not fully assess the range of subsurface interpretations. Specifically, many projects did not provide the production rates and reserves that were promised …the result of either biasing results to a more favorable outcome or anchoring on deterministic interpretations and development plans that did not take into account the full range of possible uncertainty values. This has ushered in the era of probabilistic subsurface assessments.
 
A key breakthrough in probabilistic assessments has been the adaptation of Design of Experiments to subsurface modeling on both the geologic and reservoir engineering disciplines. Since the list of subsurface uncertainties can be quite long, and the ranges of uncertainties themselves can be wide, a full assessment of reservoir performance outcomes would require hundreds or thousands of geologic and reservoir simulation models. Design of Experiments has provided a structure to this assessment process; but more importantly, DOE can significantly reduce the number of interpretations and runs needed to fully assessment reservoir performance outcomes and the main effects of each of the uncertainties.

This talk will present a structured method employed by Chevron to create unbiased P10-50-90 models of reservoir performance, which are then used to assess field development concepts. Mark will also present some lessons learned and best practices related to using DOE and incorporating that into field development planning. 


Featured Speakers

Speaker Mark A. Williams
Reservoir Management Consultant Chevron Mark A. Williams is a Reservoir Management Consultant for Chevron Energy Technology Company. He holds a BS degree in Petroleum Engineering from the University of Louisiana at Lafayette, and has been employed with Chevron since 1978. He has participated in over 150 reservoir studies, has co-developed 10 internal ...

Reservoir Management Consultant
Chevron

Mark A. Williams is a Reservoir Management Consultant for Chevron Energy Technology Company. He holds a BS degree in Petroleum Engineering from the University of Louisiana at Lafayette, and has been employed with Chevron since 1978. He has participated in over 150 reservoir studies, has co-developed 10 internal technical courses on reservoir management and reservoir simulation, and has conducted over 120 sessions of these courses. Mark was also a Lecturer at the University of Houston’s MSPE program for 5 years, where he taught 2 courses on applied reservoir simulation. He has authored several SPE papers on reservoir simulation and history matching, and has chaired several SPE forums. Mark is considered to be one of Chevron’s foremost practitioners of applied reservoir simulation. He currently works with a team of subsurface technical experts that conduct mandatory evaluations of the subsurface assessments and forecasts for all of Chevron’s Upstream Major Capital Projects. These evaluations are conducted to ensure that a full range of development alternatives have been tested against unbiased probabilistic assessments of reservoir geology and reservoir performance.

Full Description



Organizer

Michael Sternesky


Date and Time

Thu, March 23, 2006

11:30 a.m. - 1 p.m.
(GMT-0500) US/Central

Event has ended

If you do not have a full-time job in the oil and gas industry, are a full-time student or Member in Transition (MiT) member, and you do not see a discounted registration fee for students/MiT regarding this event, please contact the GCS manager at spe-gcs@spe.org.


Location

The Courtyard on St. James Place

1885 St. James Place
Houston, Texas
USA