The Humma
Marrat Reservoir Development Project - Design of Experiments-Based Workflow
Efficiency Meets the Reality of New Delineation Well Data Acquisition
Meddaugh, W. Scott1, Stewart
Griest2, David Barge3 (1) Chevron Energy Technology
Company, Houston, TX (2) Chevron Energy Technology Company,
The Jurassic-age Humma Marrat carbonate
reservoir is located in the Partitioned Neutral Zone between
A two-level design of experiments (DoE)
based workflow was adopted in early 2004 to evaluate and optimize primary
reservoir development. Reservoir uncertainties affecting volume and
connectivity were assessed in the first-level of the workflow. The second-level
focused on dynamic uncertainties. The results of the two level of the workflow
defined the P10, P50, and P90 models used for development optimization.
Economic analysis showed that primary development using vertical wells
completed in the A and E zones on 640-acre spacing was
the most attractive option. As the pressure data showed the main compartment of
the reservoir to be approaching bubble point only a limited number of
additional producers are likely needed.
Data acquired in 2005-2006 reduced
reservoir uncertainties as well as OOIP and additional work was done to refine
development options. Another series of dynamic models were generated that
incorporated the new data and preserved the capability of giving probabilistic
results. This modified DoE approach was used for final assessment of primary
development options.
AAPG Search and Discover Article #90063©2007 AAPG Annual Convention, Long Beach, California